/*
* ASN.1 buffer writing functionality
*
- * Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
*
- * This file is part of mbed TLS (https://polarssl.org)
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * 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.
+ * http://www.apache.org/licenses/LICENSE-2.0
*
- * 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.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * This file is part of mbed TLS (https://tls.mbed.org)
*/
-#if !defined(POLARSSL_CONFIG_FILE)
-#include "polarssl/config.h"
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/config.h"
#else
-#include POLARSSL_CONFIG_FILE
+#include MBEDTLS_CONFIG_FILE
#endif
-#if defined(POLARSSL_ASN1_WRITE_C)
+#if defined(MBEDTLS_ASN1_WRITE_C)
-#include "polarssl/asn1write.h"
+#include "mbedtls/asn1write.h"
-#if defined(POLARSSL_PLATFORM_C)
-#include "polarssl/platform.h"
+#include <string.h>
+
+#if defined(MBEDTLS_PLATFORM_C)
+#include "mbedtls/platform.h"
#else
#include <stdlib.h>
-#define polarssl_malloc malloc
-#define polarssl_free free
+#define mbedtls_calloc calloc
+#define mbedtls_free free
#endif
-int asn1_write_len( unsigned char **p, unsigned char *start, size_t len )
+int mbedtls_asn1_write_len( unsigned char **p, unsigned char *start, size_t len )
{
if( len < 0x80 )
{
if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = (unsigned char) len;
return( 1 );
if( len <= 0xFF )
{
if( *p - start < 2 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = (unsigned char) len;
*--(*p) = 0x81;
}
if( *p - start < 3 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
// We assume we never have lengths larger than 65535 bytes
//
return( 3 );
}
-int asn1_write_tag( unsigned char **p, unsigned char *start, unsigned char tag )
+int mbedtls_asn1_write_tag( unsigned char **p, unsigned char *start, unsigned char tag )
{
if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = tag;
return( 1 );
}
-int asn1_write_raw_buffer( unsigned char **p, unsigned char *start,
+int mbedtls_asn1_write_raw_buffer( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size )
{
size_t len = 0;
if( *p - start < (int) size )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
len = size;
(*p) -= len;
return( (int) len );
}
-#if defined(POLARSSL_BIGNUM_C)
-int asn1_write_mpi( unsigned char **p, unsigned char *start, mpi *X )
+#if defined(MBEDTLS_BIGNUM_C)
+int mbedtls_asn1_write_mpi( unsigned char **p, unsigned char *start, const mbedtls_mpi *X )
{
int ret;
size_t len = 0;
// Write the MPI
//
- len = mpi_size( X );
+ len = mbedtls_mpi_size( X );
if( *p - start < (int) len )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
(*p) -= len;
- MPI_CHK( mpi_write_binary( X, *p, len ) );
+ MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( X, *p, len ) );
// DER format assumes 2s complement for numbers, so the leftmost bit
// should be 0 for positive numbers and 1 for negative numbers.
if( X->s ==1 && **p & 0x80 )
{
if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = 0x00;
len += 1;
}
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_INTEGER ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_INTEGER ) );
ret = (int) len;
cleanup:
return( ret );
}
-#endif /* POLARSSL_BIGNUM_C */
+#endif /* MBEDTLS_BIGNUM_C */
-int asn1_write_null( unsigned char **p, unsigned char *start )
+int mbedtls_asn1_write_null( unsigned char **p, unsigned char *start )
{
int ret;
size_t len = 0;
// Write NULL
//
- ASN1_CHK_ADD( len, asn1_write_len( p, start, 0) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_NULL ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, 0) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_NULL ) );
return( (int) len );
}
-int asn1_write_oid( unsigned char **p, unsigned char *start,
+int mbedtls_asn1_write_oid( unsigned char **p, unsigned char *start,
const char *oid, size_t oid_len )
{
int ret;
size_t len = 0;
- ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start,
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) oid, oid_len ) );
- ASN1_CHK_ADD( len , asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len , asn1_write_tag( p, start, ASN1_OID ) );
+ MBEDTLS_ASN1_CHK_ADD( len , mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len , mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) );
return( (int) len );
}
-int asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start,
+int mbedtls_asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start,
const char *oid, size_t oid_len,
size_t par_len )
{
size_t len = 0;
if( par_len == 0 )
- ASN1_CHK_ADD( len, asn1_write_null( p, start ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_null( p, start ) );
else
len += par_len;
- ASN1_CHK_ADD( len, asn1_write_oid( p, start, oid, oid_len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) );
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start,
- ASN1_CONSTRUCTED | ASN1_SEQUENCE ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
+ MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
-int asn1_write_bool( unsigned char **p, unsigned char *start, int boolean )
+int mbedtls_asn1_write_bool( unsigned char **p, unsigned char *start, int boolean )
{
int ret;
size_t len = 0;
if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = (boolean) ? 1 : 0;
len++;
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_BOOLEAN ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BOOLEAN ) );
return( (int) len );
}
-int asn1_write_int( unsigned char **p, unsigned char *start, int val )
+int mbedtls_asn1_write_int( unsigned char **p, unsigned char *start, int val )
{
int ret;
size_t len = 0;
// should be 0 for positive numbers and 1 for negative numbers.
//
if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
len += 1;
*--(*p) = val;
if( val > 0 && **p & 0x80 )
{
if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = 0x00;
len += 1;
}
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_INTEGER ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_INTEGER ) );
return( (int) len );
}
-int asn1_write_printable_string( unsigned char **p, unsigned char *start,
+int mbedtls_asn1_write_printable_string( unsigned char **p, unsigned char *start,
const char *text, size_t text_len )
{
int ret;
size_t len = 0;
- ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start,
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) text, text_len ) );
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_PRINTABLE_STRING ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_PRINTABLE_STRING ) );
return( (int) len );
}
-int asn1_write_ia5_string( unsigned char **p, unsigned char *start,
+int mbedtls_asn1_write_ia5_string( unsigned char **p, unsigned char *start,
const char *text, size_t text_len )
{
int ret;
size_t len = 0;
- ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start,
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) text, text_len ) );
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_IA5_STRING ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_IA5_STRING ) );
return( (int) len );
}
-int asn1_write_bitstring( unsigned char **p, unsigned char *start,
+int mbedtls_asn1_write_bitstring( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t bits )
{
int ret;
// Calculate byte length
//
if( *p - start < (int) size + 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+ return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
len = size + 1;
(*p) -= size;
//
*--(*p) = (unsigned char) (size * 8 - bits);
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_BIT_STRING ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) );
return( (int) len );
}
-int asn1_write_octet_string( unsigned char **p, unsigned char *start,
+int mbedtls_asn1_write_octet_string( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size )
{
int ret;
size_t len = 0;
- ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start, buf, size ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, buf, size ) );
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_OCTET_STRING ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) );
return( (int) len );
}
-asn1_named_data *asn1_store_named_data( asn1_named_data **head,
+mbedtls_asn1_named_data *mbedtls_asn1_store_named_data( mbedtls_asn1_named_data **head,
const char *oid, size_t oid_len,
const unsigned char *val,
size_t val_len )
{
- asn1_named_data *cur;
+ mbedtls_asn1_named_data *cur;
- if( ( cur = asn1_find_named_data( *head, oid, oid_len ) ) == NULL )
+ if( ( cur = mbedtls_asn1_find_named_data( *head, oid, oid_len ) ) == NULL )
{
// Add new entry if not present yet based on OID
//
- if( ( cur = polarssl_malloc( sizeof(asn1_named_data) ) ) == NULL )
+ if( ( cur = mbedtls_calloc( 1, sizeof(mbedtls_asn1_named_data) ) ) == NULL )
return( NULL );
- memset( cur, 0, sizeof(asn1_named_data) );
-
cur->oid.len = oid_len;
- cur->oid.p = polarssl_malloc( oid_len );
+ cur->oid.p = mbedtls_calloc( 1, oid_len );
if( cur->oid.p == NULL )
{
- polarssl_free( cur );
+ mbedtls_free( cur );
return( NULL );
}
memcpy( cur->oid.p, oid, oid_len );
cur->val.len = val_len;
- cur->val.p = polarssl_malloc( val_len );
+ cur->val.p = mbedtls_calloc( 1, val_len );
if( cur->val.p == NULL )
{
- polarssl_free( cur->oid.p );
- polarssl_free( cur );
+ mbedtls_free( cur->oid.p );
+ mbedtls_free( cur );
return( NULL );
}
{
// Enlarge existing value buffer if needed
//
- polarssl_free( cur->val.p );
+ mbedtls_free( cur->val.p );
cur->val.p = NULL;
cur->val.len = val_len;
- cur->val.p = polarssl_malloc( val_len );
+ cur->val.p = mbedtls_calloc( 1, val_len );
if( cur->val.p == NULL )
{
- polarssl_free( cur->oid.p );
- polarssl_free( cur );
+ mbedtls_free( cur->oid.p );
+ mbedtls_free( cur );
return( NULL );
}
}
return( cur );
}
-#endif /* POLARSSL_ASN1_WRITE_C */
+#endif /* MBEDTLS_ASN1_WRITE_C */
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