reactos/include/reactos/libs/mbedtls/error.h

   1 /**
   2  * \file error.h
   3  *
   4  * \brief Error to string translation
   5  *
   6  *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
   7  *  SPDX-License-Identifier: Apache-2.0
   8  *
   9  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
  10  *  not use this file except in compliance with the License.
  11  *  You may obtain a copy of the License at
  12  *
  13  *  http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  *  Unless required by applicable law or agreed to in writing, software
  16  *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  17  *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  *  See the License for the specific language governing permissions and
  19  *  limitations under the License.
  20  *
  21  *  This file is part of mbed TLS (https://tls.mbed.org)
  22  */
  23 #ifndef MBEDTLS_ERROR_H
  24 #define MBEDTLS_ERROR_H
  25
  26 #include <stddef.h>
  27
  28 /**
  29  * Error code layout.
  30  *
  31  * Currently we try to keep all error codes within the negative space of 16
  32  * bits signed integers to support all platforms (-0x0001 - -0x7FFF). In
  33  * addition we'd like to give two layers of information on the error if
  34  * possible.
  35  *
  36  * For that purpose the error codes are segmented in the following manner:
  37  *
  38  * 16 bit error code bit-segmentation
  39  *
  40  * 1 bit  - Unused (sign bit)
  41  * 3 bits - High level module ID
  42  * 5 bits - Module-dependent error code
  43  * 7 bits - Low level module errors
  44  *
  45  * For historical reasons, low-level error codes are divided in even and odd,
  46  * even codes were assigned first, and -1 is reserved for other errors.
  47  *
  48  * Low-level module errors (0x0002-0x007E, 0x0003-0x007F)
  49  *
  50  * Module   Nr  Codes assigned
  51  * MPI       7  0x0002-0x0010
  52  * GCM       2  0x0012-0x0014
  53  * BLOWFISH  2  0x0016-0x0018
  54  * THREADING 3  0x001A-0x001E
  55  * AES       2  0x0020-0x0022
  56  * CAMELLIA  2  0x0024-0x0026
  57  * XTEA      1  0x0028-0x0028
  58  * BASE64    2  0x002A-0x002C
  59  * OID       1  0x002E-0x002E   0x000B-0x000B
  60  * PADLOCK   1  0x0030-0x0030
  61  * DES       1  0x0032-0x0032
  62  * CTR_DBRG  4  0x0034-0x003A
  63  * ENTROPY   3  0x003C-0x0040   0x003D-0x003F
  64  * NET      11  0x0042-0x0052   0x0043-0x0045
  65  * ASN1      7  0x0060-0x006C
  66  * PBKDF2    1  0x007C-0x007C
  67  * HMAC_DRBG 4  0x0003-0x0009
  68  * CCM       2                  0x000D-0x000F
  69  *
  70  * High-level module nr (3 bits - 0x0...-0x7...)
  71  * Name      ID  Nr of Errors
  72  * PEM       1   9
  73  * PKCS#12   1   4 (Started from top)
  74  * X509      2   19
  75  * PKCS5     2   4 (Started from top)
  76  * DHM       3   9
  77  * PK        3   14 (Started from top)
  78  * RSA       4   9
  79  * ECP       4   8 (Started from top)
  80  * MD        5   4
  81  * CIPHER    6   6
  82  * SSL       6   16 (Started from top)
  83  * SSL       7   31
  84  *
  85  * Module dependent error code (5 bits 0x.00.-0x.F8.)
  86  */
  87
  88 #ifdef __cplusplus
  89 extern "C" {
  90 #endif
  91
  92 /**
  93  * \brief Translate a mbed TLS error code into a string representation,
  94  *        Result is truncated if necessary and always includes a terminating
  95  *        null byte.
  96  *
  97  * \param errnum    error code
  98  * \param buffer    buffer to place representation in
  99  * \param buflen    length of the buffer
 100  */
 101 void mbedtls_strerror( int errnum, char *buffer, size_t buflen );
 102
 103 #ifdef __cplusplus
 104 }
 105 #endif
 106
 107 #endif /* error.h */