945b23c46f
We used to include platform.h only when MBEDTLS_PLATFORM_C was enabled, and to define ad hoc replacements for mbedtls_xxx functions on a case-by-case basis when MBEDTLS_PLATFORM_C was disabled. The only reason for this complication was to allow building individual source modules without copying platform.h. This is not something we support or recommend anymore, so get rid of the complication: include platform.h unconditionally. There should be no change in behavior since just including the header should not change the behavior of a program. This commit replaces most occurrences of conditional inclusion of platform.h, using the following code: ``` perl -i -0777 -pe 's!#if.*\n#include "mbedtls/platform.h"\n(#else.*\n(#define (mbedtls|MBEDTLS)_.*\n|#include <(stdarg|stddef|stdio|stdlib|string|time)\.h>\n)*)?#endif.*!#include "mbedtls/platform.h"!mg' $(git grep -l '#include "mbedtls/platform.h"') ``` Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
166 lines
3.9 KiB
Plaintext
166 lines
3.9 KiB
Plaintext
/*
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* Error message information
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*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "common.h"
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#include "mbedtls/error.h"
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#if defined(MBEDTLS_ERROR_C) || defined(MBEDTLS_ERROR_STRERROR_DUMMY)
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#if defined(MBEDTLS_ERROR_C)
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#include "mbedtls/platform.h"
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#include <stdio.h>
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#include <string.h>
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HEADER_INCLUDED
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const char * mbedtls_high_level_strerr( int error_code )
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{
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int high_level_error_code;
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if( error_code < 0 )
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error_code = -error_code;
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/* Extract the high-level part from the error code. */
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high_level_error_code = error_code & 0xFF80;
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switch( high_level_error_code )
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{
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/* Begin Auto-Generated Code. */
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HIGH_LEVEL_CODE_CHECKS
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/* End Auto-Generated Code. */
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default:
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break;
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}
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return( NULL );
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}
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const char * mbedtls_low_level_strerr( int error_code )
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{
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int low_level_error_code;
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if( error_code < 0 )
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error_code = -error_code;
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/* Extract the low-level part from the error code. */
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low_level_error_code = error_code & ~0xFF80;
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switch( low_level_error_code )
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{
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/* Begin Auto-Generated Code. */
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LOW_LEVEL_CODE_CHECKS
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/* End Auto-Generated Code. */
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default:
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break;
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}
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return( NULL );
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}
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void mbedtls_strerror( int ret, char *buf, size_t buflen )
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{
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size_t len;
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int use_ret;
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const char * high_level_error_description = NULL;
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const char * low_level_error_description = NULL;
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if( buflen == 0 )
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return;
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memset( buf, 0x00, buflen );
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if( ret < 0 )
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ret = -ret;
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if( ret & 0xFF80 )
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{
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use_ret = ret & 0xFF80;
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// Translate high level error code.
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high_level_error_description = mbedtls_high_level_strerr( ret );
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if( high_level_error_description == NULL )
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mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", (unsigned int) use_ret );
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else
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mbedtls_snprintf( buf, buflen, "%s", high_level_error_description );
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#if defined(MBEDTLS_SSL_TLS_C)
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// Early return in case of a fatal error - do not try to translate low
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// level code.
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if(use_ret == -(MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE))
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return;
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#endif /* MBEDTLS_SSL_TLS_C */
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}
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use_ret = ret & ~0xFF80;
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if( use_ret == 0 )
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return;
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// If high level code is present, make a concatenation between both
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// error strings.
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//
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len = strlen( buf );
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if( len > 0 )
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{
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if( buflen - len < 5 )
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return;
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mbedtls_snprintf( buf + len, buflen - len, " : " );
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buf += len + 3;
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buflen -= len + 3;
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}
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// Translate low level error code.
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low_level_error_description = mbedtls_low_level_strerr( ret );
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if( low_level_error_description == NULL )
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mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", (unsigned int) use_ret );
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else
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mbedtls_snprintf( buf, buflen, "%s", low_level_error_description );
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}
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#else /* MBEDTLS_ERROR_C */
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/*
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* Provide a dummy implementation when MBEDTLS_ERROR_C is not defined
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*/
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void mbedtls_strerror( int ret, char *buf, size_t buflen )
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{
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((void) ret);
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if( buflen > 0 )
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buf[0] = '\0';
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}
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#endif /* MBEDTLS_ERROR_C */
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#if defined(MBEDTLS_TEST_HOOKS)
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void (*mbedtls_test_hook_error_add)( int, int, const char *, int );
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#endif
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#endif /* MBEDTLS_ERROR_C || MBEDTLS_ERROR_STRERROR_DUMMY */
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