error.c 36.8 KB
Newer Older
1 2 3
/*
 *  Error message information
 *
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
4
 *  Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
5
 *
6
 *  This file is part of mbed TLS (https://tls.mbed.org)
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
 *
 *  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.
 *
 *  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.
 *
 *  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.
 */

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
23
#if !defined(MBEDTLS_CONFIG_FILE)
24
#include "mbedtls/config.h"
25
#else
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
26
#include MBEDTLS_CONFIG_FILE
27
#endif
28

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
29
#if defined(MBEDTLS_ERROR_C) || defined(MBEDTLS_ERROR_STRERROR_DUMMY)
30
#include "mbedtls/error.h"
31
#include <string.h>
32 33
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
34
#if defined(MBEDTLS_PLATFORM_C)
35
#include "mbedtls/platform.h"
36
#else
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
37
#define mbedtls_snprintf snprintf
38 39
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
40
#if defined(MBEDTLS_ERROR_C)
41

42 43
#include <stdio.h>

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
44
#if defined(MBEDTLS_AES_C)
45
#include "mbedtls/aes.h"
46 47
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
48
#if defined(MBEDTLS_BASE64_C)
49
#include "mbedtls/base64.h"
50 51
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
52
#if defined(MBEDTLS_BIGNUM_C)
53
#include "mbedtls/bignum.h"
54 55
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
56
#if defined(MBEDTLS_BLOWFISH_C)
57
#include "mbedtls/blowfish.h"
58 59
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
60
#if defined(MBEDTLS_CAMELLIA_C)
61
#include "mbedtls/camellia.h"
62 63
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
64
#if defined(MBEDTLS_CCM_C)
65
#include "mbedtls/ccm.h"
66 67
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
68
#if defined(MBEDTLS_CIPHER_C)
69
#include "mbedtls/cipher.h"
70 71
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
72
#if defined(MBEDTLS_CTR_DRBG_C)
73
#include "mbedtls/ctr_drbg.h"
74 75
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
76
#if defined(MBEDTLS_DES_C)
77
#include "mbedtls/des.h"
78 79
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
80
#if defined(MBEDTLS_DHM_C)
81
#include "mbedtls/dhm.h"
82 83
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
84
#if defined(MBEDTLS_ECP_C)
85
#include "mbedtls/ecp.h"
Paul Bakker's avatar
Paul Bakker committed
86 87
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
88
#if defined(MBEDTLS_ENTROPY_C)
89
#include "mbedtls/entropy.h"
90 91
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
92
#if defined(MBEDTLS_GCM_C)
93
#include "mbedtls/gcm.h"
94 95
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
96
#if defined(MBEDTLS_HMAC_DRBG_C)
97
#include "mbedtls/hmac_drbg.h"
98 99
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
100
#if defined(MBEDTLS_MD_C)
101
#include "mbedtls/md.h"
102 103
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
104
#if defined(MBEDTLS_MD2_C)
105
#include "mbedtls/md2.h"
106 107
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
108
#if defined(MBEDTLS_MD4_C)
109
#include "mbedtls/md4.h"
110 111
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
112
#if defined(MBEDTLS_MD5_C)
113
#include "mbedtls/md5.h"
114 115
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
116
#if defined(MBEDTLS_NET_C)
117
#include "mbedtls/net.h"
118 119
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
120
#if defined(MBEDTLS_OID_C)
121
#include "mbedtls/oid.h"
122 123
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
124
#if defined(MBEDTLS_PADLOCK_C)
125
#include "mbedtls/padlock.h"
126 127
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
128
#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
129
#include "mbedtls/pem.h"
130 131
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
132
#if defined(MBEDTLS_PK_C)
133
#include "mbedtls/pk.h"
134 135
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
136
#if defined(MBEDTLS_PKCS12_C)
137
#include "mbedtls/pkcs12.h"
138 139
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
140
#if defined(MBEDTLS_PKCS5_C)
141
#include "mbedtls/pkcs5.h"
142 143
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
144
#if defined(MBEDTLS_RIPEMD160_C)
145
#include "mbedtls/ripemd160.h"
146 147
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
148
#if defined(MBEDTLS_RSA_C)
149
#include "mbedtls/rsa.h"
150 151
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
152
#if defined(MBEDTLS_SHA1_C)
153
#include "mbedtls/sha1.h"
154 155
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
156
#if defined(MBEDTLS_SHA256_C)
157
#include "mbedtls/sha256.h"
158 159
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
160
#if defined(MBEDTLS_SHA512_C)
161
#include "mbedtls/sha512.h"
162 163
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
164
#if defined(MBEDTLS_SSL_TLS_C)
165
#include "mbedtls/ssl.h"
166 167
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
168
#if defined(MBEDTLS_THREADING_C)
169
#include "mbedtls/threading.h"
170 171
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
172
#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
173
#include "mbedtls/x509.h"
174 175
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
176
#if defined(MBEDTLS_XTEA_C)
177
#include "mbedtls/xtea.h"
178 179
#endif

180 181
#if defined(_MSC_VER) && !defined  snprintf && !defined(EFIX64) && \
    !defined(EFI32)
182 183 184
#define  snprintf  _snprintf
#endif

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
185
void mbedtls_strerror( int ret, char *buf, size_t buflen )
186 187 188 189
{
    size_t len;
    int use_ret;

190 191 192
    if( buflen == 0 )
        return;

193
    memset( buf, 0x00, buflen );
194 195 196
    /* Reduce buflen to make sure MSVC _snprintf() ends with \0 as well */
    buflen -= 1;

197 198 199 200 201 202 203 204 205
    if( ret < 0 )
        ret = -ret;

    if( ret & 0xFF80 )
    {
        use_ret = ret & 0xFF80;

        // High level error codes
        //
206
        // BEGIN generated code
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397
#if defined(MBEDTLS_CIPHER_C)
        if( use_ret == -(MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "CIPHER - The selected feature is not available" );
        if( use_ret == -(MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "CIPHER - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_CIPHER_ALLOC_FAILED) )
            mbedtls_snprintf( buf, buflen, "CIPHER - Failed to allocate memory" );
        if( use_ret == -(MBEDTLS_ERR_CIPHER_INVALID_PADDING) )
            mbedtls_snprintf( buf, buflen, "CIPHER - Input data contains invalid padding and is rejected" );
        if( use_ret == -(MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED) )
            mbedtls_snprintf( buf, buflen, "CIPHER - Decryption of block requires a full block" );
        if( use_ret == -(MBEDTLS_ERR_CIPHER_AUTH_FAILED) )
            mbedtls_snprintf( buf, buflen, "CIPHER - Authentication failed (for AEAD modes)" );
#endif /* MBEDTLS_CIPHER_C */

#if defined(MBEDTLS_DHM_C)
        if( use_ret == -(MBEDTLS_ERR_DHM_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "DHM - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_DHM_READ_PARAMS_FAILED) )
            mbedtls_snprintf( buf, buflen, "DHM - Reading of the DHM parameters failed" );
        if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED) )
            mbedtls_snprintf( buf, buflen, "DHM - Making of the DHM parameters failed" );
        if( use_ret == -(MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED) )
            mbedtls_snprintf( buf, buflen, "DHM - Reading of the public values failed" );
        if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED) )
            mbedtls_snprintf( buf, buflen, "DHM - Making of the public value failed" );
        if( use_ret == -(MBEDTLS_ERR_DHM_CALC_SECRET_FAILED) )
            mbedtls_snprintf( buf, buflen, "DHM - Calculation of the DHM secret failed" );
        if( use_ret == -(MBEDTLS_ERR_DHM_INVALID_FORMAT) )
            mbedtls_snprintf( buf, buflen, "DHM - The ASN.1 data is not formatted correctly" );
        if( use_ret == -(MBEDTLS_ERR_DHM_MALLOC_FAILED) )
            mbedtls_snprintf( buf, buflen, "DHM - Allocation of memory failed" );
        if( use_ret == -(MBEDTLS_ERR_DHM_FILE_IO_ERROR) )
            mbedtls_snprintf( buf, buflen, "DHM - Read/write of file failed" );
#endif /* MBEDTLS_DHM_C */

#if defined(MBEDTLS_ECP_C)
        if( use_ret == -(MBEDTLS_ERR_ECP_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "ECP - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL) )
            mbedtls_snprintf( buf, buflen, "ECP - The buffer is too small to write to" );
        if( use_ret == -(MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "ECP - Requested curve not available" );
        if( use_ret == -(MBEDTLS_ERR_ECP_VERIFY_FAILED) )
            mbedtls_snprintf( buf, buflen, "ECP - The signature is not valid" );
        if( use_ret == -(MBEDTLS_ERR_ECP_MALLOC_FAILED) )
            mbedtls_snprintf( buf, buflen, "ECP - Memory allocation failed" );
        if( use_ret == -(MBEDTLS_ERR_ECP_RANDOM_FAILED) )
            mbedtls_snprintf( buf, buflen, "ECP - Generation of random value, such as (ephemeral) key, failed" );
        if( use_ret == -(MBEDTLS_ERR_ECP_INVALID_KEY) )
            mbedtls_snprintf( buf, buflen, "ECP - Invalid private or public key" );
        if( use_ret == -(MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "ECP - Signature is valid but shorter than the user-supplied length" );
#endif /* MBEDTLS_ECP_C */

#if defined(MBEDTLS_MD_C)
        if( use_ret == -(MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "MD - The selected feature is not available" );
        if( use_ret == -(MBEDTLS_ERR_MD_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "MD - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_MD_ALLOC_FAILED) )
            mbedtls_snprintf( buf, buflen, "MD - Failed to allocate memory" );
        if( use_ret == -(MBEDTLS_ERR_MD_FILE_IO_ERROR) )
            mbedtls_snprintf( buf, buflen, "MD - Opening or reading of file failed" );
#endif /* MBEDTLS_MD_C */

#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
        if( use_ret == -(MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT) )
            mbedtls_snprintf( buf, buflen, "PEM - No PEM header or footer found" );
        if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_DATA) )
            mbedtls_snprintf( buf, buflen, "PEM - PEM string is not as expected" );
        if( use_ret == -(MBEDTLS_ERR_PEM_MALLOC_FAILED) )
            mbedtls_snprintf( buf, buflen, "PEM - Failed to allocate memory" );
        if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_ENC_IV) )
            mbedtls_snprintf( buf, buflen, "PEM - RSA IV is not in hex-format" );
        if( use_ret == -(MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG) )
            mbedtls_snprintf( buf, buflen, "PEM - Unsupported key encryption algorithm" );
        if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_REQUIRED) )
            mbedtls_snprintf( buf, buflen, "PEM - Private key password can't be empty" );
        if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" );
        if( use_ret == -(MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" );
        if( use_ret == -(MBEDTLS_ERR_PEM_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "PEM - Bad input parameters to function" );
#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */

#if defined(MBEDTLS_PK_C)
        if( use_ret == -(MBEDTLS_ERR_PK_MALLOC_FAILED) )
            mbedtls_snprintf( buf, buflen, "PK - Memory alloation failed" );
        if( use_ret == -(MBEDTLS_ERR_PK_TYPE_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "PK - Type mismatch, eg attempt to encrypt with an ECDSA key" );
        if( use_ret == -(MBEDTLS_ERR_PK_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "PK - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_PK_FILE_IO_ERROR) )
            mbedtls_snprintf( buf, buflen, "PK - Read/write of file failed" );
        if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_VERSION) )
            mbedtls_snprintf( buf, buflen, "PK - Unsupported key version" );
        if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT) )
            mbedtls_snprintf( buf, buflen, "PK - Invalid key tag or value" );
        if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_PK_ALG) )
            mbedtls_snprintf( buf, buflen, "PK - Key algorithm is unsupported (only RSA and EC are supported)" );
        if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_REQUIRED) )
            mbedtls_snprintf( buf, buflen, "PK - Private key password can't be empty" );
        if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "PK - Given private key password does not allow for correct decryption" );
        if( use_ret == -(MBEDTLS_ERR_PK_INVALID_PUBKEY) )
            mbedtls_snprintf( buf, buflen, "PK - The pubkey tag or value is invalid (only RSA and EC are supported)" );
        if( use_ret == -(MBEDTLS_ERR_PK_INVALID_ALG) )
            mbedtls_snprintf( buf, buflen, "PK - The algorithm tag or value is invalid" );
        if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE) )
            mbedtls_snprintf( buf, buflen, "PK - Elliptic curve is unsupported (only NIST curves are supported)" );
        if( use_ret == -(MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "PK - Unavailable feature, e.g. RSA disabled for RSA key" );
        if( use_ret == -(MBEDTLS_ERR_PK_SIG_LEN_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "PK - The signature is valid but its length is less than expected" );
#endif /* MBEDTLS_PK_C */

#if defined(MBEDTLS_PKCS12_C)
        if( use_ret == -(MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "PKCS12 - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "PKCS12 - Feature not available, e.g. unsupported encryption scheme" );
        if( use_ret == -(MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT) )
            mbedtls_snprintf( buf, buflen, "PKCS12 - PBE ASN.1 data not as expected" );
        if( use_ret == -(MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "PKCS12 - Given private key password does not allow for correct decryption" );
#endif /* MBEDTLS_PKCS12_C */

#if defined(MBEDTLS_PKCS5_C)
        if( use_ret == -(MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "PKCS5 - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_PKCS5_INVALID_FORMAT) )
            mbedtls_snprintf( buf, buflen, "PKCS5 - Unexpected ASN.1 data" );
        if( use_ret == -(MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "PKCS5 - Requested encryption or digest alg not available" );
        if( use_ret == -(MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "PKCS5 - Given private key password does not allow for correct decryption" );
#endif /* MBEDTLS_PKCS5_C */

#if defined(MBEDTLS_RSA_C)
        if( use_ret == -(MBEDTLS_ERR_RSA_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "RSA - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_RSA_INVALID_PADDING) )
            mbedtls_snprintf( buf, buflen, "RSA - Input data contains invalid padding and is rejected" );
        if( use_ret == -(MBEDTLS_ERR_RSA_KEY_GEN_FAILED) )
            mbedtls_snprintf( buf, buflen, "RSA - Something failed during generation of a key" );
        if( use_ret == -(MBEDTLS_ERR_RSA_KEY_CHECK_FAILED) )
            mbedtls_snprintf( buf, buflen, "RSA - Key failed to pass the libraries validity check" );
        if( use_ret == -(MBEDTLS_ERR_RSA_PUBLIC_FAILED) )
            mbedtls_snprintf( buf, buflen, "RSA - The public key operation failed" );
        if( use_ret == -(MBEDTLS_ERR_RSA_PRIVATE_FAILED) )
            mbedtls_snprintf( buf, buflen, "RSA - The private key operation failed" );
        if( use_ret == -(MBEDTLS_ERR_RSA_VERIFY_FAILED) )
            mbedtls_snprintf( buf, buflen, "RSA - The PKCS#1 verification failed" );
        if( use_ret == -(MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE) )
            mbedtls_snprintf( buf, buflen, "RSA - The output buffer for decryption is not large enough" );
        if( use_ret == -(MBEDTLS_ERR_RSA_RNG_FAILED) )
            mbedtls_snprintf( buf, buflen, "RSA - The random generator failed to generate non-zeros" );
#endif /* MBEDTLS_RSA_C */

#if defined(MBEDTLS_SSL_TLS_C)
        if( use_ret == -(MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "SSL - The requested feature is not available" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "SSL - Bad input parameters to function" );
        if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_MAC) )
            mbedtls_snprintf( buf, buflen, "SSL - Verification of the message MAC failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_RECORD) )
            mbedtls_snprintf( buf, buflen, "SSL - An invalid SSL record was received" );
        if( use_ret == -(MBEDTLS_ERR_SSL_CONN_EOF) )
            mbedtls_snprintf( buf, buflen, "SSL - The connection indicated an EOF" );
        if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_CIPHER) )
            mbedtls_snprintf( buf, buflen, "SSL - An unknown cipher was received" );
        if( use_ret == -(MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN) )
            mbedtls_snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" );
        if( use_ret == -(MBEDTLS_ERR_SSL_NO_RNG) )
            mbedtls_snprintf( buf, buflen, "SSL - No RNG was provided to the SSL module" );
        if( use_ret == -(MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE) )
            mbedtls_snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" );
        if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE) )
            mbedtls_snprintf( buf, buflen, "SSL - Our own certificate(s) is/are too large to send in an SSL message" );
        if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED) )
            mbedtls_snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" );
        if( use_ret == -(MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) )
            mbedtls_snprintf( buf, buflen, "SSL - The own private key or pre-shared key is not set, but needed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED) )
            mbedtls_snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" );
        if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE) )
            mbedtls_snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" );
        if( use_ret == -(MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE) )
398
        {
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
399
            mbedtls_snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" );
400 401
            return;
        }
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498
        if( use_ret == -(MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED) )
            mbedtls_snprintf( buf, buflen, "SSL - Verification of our peer failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) )
            mbedtls_snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_FINISHED) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_MALLOC_FAILED) )
            mbedtls_snprintf( buf, buflen, "SSL - Memory allocation failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FAILED) )
            mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function returned with error" );
        if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH) )
            mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function skipped / left alone data" );
        if( use_ret == -(MBEDTLS_ERR_SSL_COMPRESSION_FAILED) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the compression / decompression failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION) )
            mbedtls_snprintf( buf, buflen, "SSL - Handshake protocol not within min/max boundaries" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET) )
            mbedtls_snprintf( buf, buflen, "SSL - Processing of the NewSessionTicket handshake message failed" );
        if( use_ret == -(MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) )
            mbedtls_snprintf( buf, buflen, "SSL - Session ticket has expired" );
        if( use_ret == -(MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "SSL - Public key type mismatch (eg, asked for RSA key exchange and presented EC key)" );
        if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) )
            mbedtls_snprintf( buf, buflen, "SSL - Unknown identity received (eg, PSK identity)" );
        if( use_ret == -(MBEDTLS_ERR_SSL_INTERNAL_ERROR) )
            mbedtls_snprintf( buf, buflen, "SSL - Internal error (eg, unexpected failure in lower-level module)" );
        if( use_ret == -(MBEDTLS_ERR_SSL_COUNTER_WRAPPING) )
            mbedtls_snprintf( buf, buflen, "SSL - A counter would wrap (eg, too many messages exchanged)" );
        if( use_ret == -(MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO) )
            mbedtls_snprintf( buf, buflen, "SSL - Unexpected message at ServerHello in renegotiation" );
        if( use_ret == -(MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) )
            mbedtls_snprintf( buf, buflen, "SSL - DTLS client must retry for hello verification" );
        if( use_ret == -(MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) )
            mbedtls_snprintf( buf, buflen, "SSL - A buffer is too small to receive or write a message" );
        if( use_ret == -(MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE) )
            mbedtls_snprintf( buf, buflen, "SSL - None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages)" );
#endif /* MBEDTLS_SSL_TLS_C */

#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
        if( use_ret == -(MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE) )
            mbedtls_snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" );
        if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_OID) )
            mbedtls_snprintf( buf, buflen, "X509 - Requested OID is unknown" );
        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_FORMAT) )
            mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR format is invalid, e.g. different type expected" );
        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_VERSION) )
            mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR version element is invalid" );
        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SERIAL) )
            mbedtls_snprintf( buf, buflen, "X509 - The serial tag or value is invalid" );
        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_ALG) )
            mbedtls_snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" );
        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_NAME) )
            mbedtls_snprintf( buf, buflen, "X509 - The name tag or value is invalid" );
        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_DATE) )
            mbedtls_snprintf( buf, buflen, "X509 - The date tag or value is invalid" );
        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SIGNATURE) )
            mbedtls_snprintf( buf, buflen, "X509 - The signature tag or value invalid" );
        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_EXTENSIONS) )
            mbedtls_snprintf( buf, buflen, "X509 - The extension tag or value is invalid" );
        if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_VERSION) )
            mbedtls_snprintf( buf, buflen, "X509 - CRT/CRL/CSR has an unsupported version number" );
        if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG) )
            mbedtls_snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" );
        if( use_ret == -(MBEDTLS_ERR_X509_SIG_MISMATCH) )
            mbedtls_snprintf( buf, buflen, "X509 - Signature algorithms do not match. (see \\c ::mbedtls_x509_crt sig_oid)" );
        if( use_ret == -(MBEDTLS_ERR_X509_CERT_VERIFY_FAILED) )
            mbedtls_snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" );
        if( use_ret == -(MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT) )
            mbedtls_snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" );
        if( use_ret == -(MBEDTLS_ERR_X509_BAD_INPUT_DATA) )
            mbedtls_snprintf( buf, buflen, "X509 - Input invalid" );
        if( use_ret == -(MBEDTLS_ERR_X509_MALLOC_FAILED) )
            mbedtls_snprintf( buf, buflen, "X509 - Allocation of memory failed" );
        if( use_ret == -(MBEDTLS_ERR_X509_FILE_IO_ERROR) )
            mbedtls_snprintf( buf, buflen, "X509 - Read/write of file failed" );
499
#endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */
500
        // END generated code
501

502
        if( strlen( buf ) == 0 )
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
503
            mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520
    }

    use_ret = ret & ~0xFF80;

    if( use_ret == 0 )
        return;

    // If high level code is present, make a concatenation between both
    // error strings.
    //
    len = strlen( buf );

    if( len > 0 )
    {
        if( buflen - len < 5 )
            return;

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
521
        mbedtls_snprintf( buf + len, buflen - len, " : " );
522 523 524 525 526 527 528

        buf += len + 3;
        buflen -= len + 3;
    }

    // Low level error codes
    //
529
    // BEGIN generated code
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732
#if defined(MBEDTLS_AES_C)
    if( use_ret == -(MBEDTLS_ERR_AES_INVALID_KEY_LENGTH) )
        mbedtls_snprintf( buf, buflen, "AES - Invalid key length" );
    if( use_ret == -(MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH) )
        mbedtls_snprintf( buf, buflen, "AES - Invalid data input length" );
#endif /* MBEDTLS_AES_C */

#if defined(MBEDTLS_ASN1_PARSE_C)
    if( use_ret == -(MBEDTLS_ERR_ASN1_OUT_OF_DATA) )
        mbedtls_snprintf( buf, buflen, "ASN1 - Out of data when parsing an ASN1 data structure" );
    if( use_ret == -(MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) )
        mbedtls_snprintf( buf, buflen, "ASN1 - ASN1 tag was of an unexpected value" );
    if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_LENGTH) )
        mbedtls_snprintf( buf, buflen, "ASN1 - Error when trying to determine the length or invalid length" );
    if( use_ret == -(MBEDTLS_ERR_ASN1_LENGTH_MISMATCH) )
        mbedtls_snprintf( buf, buflen, "ASN1 - Actual length differs from expected length" );
    if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_DATA) )
        mbedtls_snprintf( buf, buflen, "ASN1 - Data is invalid. (not used)" );
    if( use_ret == -(MBEDTLS_ERR_ASN1_MALLOC_FAILED) )
        mbedtls_snprintf( buf, buflen, "ASN1 - Memory allocation failed" );
    if( use_ret == -(MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) )
        mbedtls_snprintf( buf, buflen, "ASN1 - Buffer too small when writing ASN.1 data structure" );
#endif /* MBEDTLS_ASN1_PARSE_C */

#if defined(MBEDTLS_BASE64_C)
    if( use_ret == -(MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL) )
        mbedtls_snprintf( buf, buflen, "BASE64 - Output buffer too small" );
    if( use_ret == -(MBEDTLS_ERR_BASE64_INVALID_CHARACTER) )
        mbedtls_snprintf( buf, buflen, "BASE64 - Invalid character in input" );
#endif /* MBEDTLS_BASE64_C */

#if defined(MBEDTLS_BIGNUM_C)
    if( use_ret == -(MBEDTLS_ERR_MPI_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "BIGNUM - An error occurred while reading from or writing to a file" );
    if( use_ret == -(MBEDTLS_ERR_MPI_BAD_INPUT_DATA) )
        mbedtls_snprintf( buf, buflen, "BIGNUM - Bad input parameters to function" );
    if( use_ret == -(MBEDTLS_ERR_MPI_INVALID_CHARACTER) )
        mbedtls_snprintf( buf, buflen, "BIGNUM - There is an invalid character in the digit string" );
    if( use_ret == -(MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL) )
        mbedtls_snprintf( buf, buflen, "BIGNUM - The buffer is too small to write to" );
    if( use_ret == -(MBEDTLS_ERR_MPI_NEGATIVE_VALUE) )
        mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are negative or result in illegal output" );
    if( use_ret == -(MBEDTLS_ERR_MPI_DIVISION_BY_ZERO) )
        mbedtls_snprintf( buf, buflen, "BIGNUM - The input argument for division is zero, which is not allowed" );
    if( use_ret == -(MBEDTLS_ERR_MPI_NOT_ACCEPTABLE) )
        mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are not acceptable" );
    if( use_ret == -(MBEDTLS_ERR_MPI_MALLOC_FAILED) )
        mbedtls_snprintf( buf, buflen, "BIGNUM - Memory allocation failed" );
#endif /* MBEDTLS_BIGNUM_C */

#if defined(MBEDTLS_BLOWFISH_C)
    if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH) )
        mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid key length" );
    if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH) )
        mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid data input length" );
#endif /* MBEDTLS_BLOWFISH_C */

#if defined(MBEDTLS_CAMELLIA_C)
    if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH) )
        mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid key length" );
    if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH) )
        mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid data input length" );
#endif /* MBEDTLS_CAMELLIA_C */

#if defined(MBEDTLS_CCM_C)
    if( use_ret == -(MBEDTLS_ERR_CCM_BAD_INPUT) )
        mbedtls_snprintf( buf, buflen, "CCM - Bad input parameters to function" );
    if( use_ret == -(MBEDTLS_ERR_CCM_AUTH_FAILED) )
        mbedtls_snprintf( buf, buflen, "CCM - Authenticated decryption failed" );
#endif /* MBEDTLS_CCM_C */

#if defined(MBEDTLS_CTR_DRBG_C)
    if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED) )
        mbedtls_snprintf( buf, buflen, "CTR_DRBG - The entropy source failed" );
    if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG) )
        mbedtls_snprintf( buf, buflen, "CTR_DRBG - Too many random requested in single call" );
    if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG) )
        mbedtls_snprintf( buf, buflen, "CTR_DRBG - Input too large (Entropy + additional)" );
    if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "CTR_DRBG - Read/write error in file" );
#endif /* MBEDTLS_CTR_DRBG_C */

#if defined(MBEDTLS_DES_C)
    if( use_ret == -(MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH) )
        mbedtls_snprintf( buf, buflen, "DES - The data input has an invalid length" );
#endif /* MBEDTLS_DES_C */

#if defined(MBEDTLS_ENTROPY_C)
    if( use_ret == -(MBEDTLS_ERR_ENTROPY_SOURCE_FAILED) )
        mbedtls_snprintf( buf, buflen, "ENTROPY - Critical entropy source failure" );
    if( use_ret == -(MBEDTLS_ERR_ENTROPY_MAX_SOURCES) )
        mbedtls_snprintf( buf, buflen, "ENTROPY - No more sources can be added" );
    if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED) )
        mbedtls_snprintf( buf, buflen, "ENTROPY - No sources have been added to poll" );
    if( use_ret == -(MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "ENTROPY - Read/write error in file" );
#endif /* MBEDTLS_ENTROPY_C */

#if defined(MBEDTLS_GCM_C)
    if( use_ret == -(MBEDTLS_ERR_GCM_AUTH_FAILED) )
        mbedtls_snprintf( buf, buflen, "GCM - Authenticated decryption failed" );
    if( use_ret == -(MBEDTLS_ERR_GCM_BAD_INPUT) )
        mbedtls_snprintf( buf, buflen, "GCM - Bad input parameters to function" );
#endif /* MBEDTLS_GCM_C */

#if defined(MBEDTLS_HMAC_DRBG_C)
    if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG) )
        mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Too many random requested in single call" );
    if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG) )
        mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Input too large (Entropy + additional)" );
    if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Read/write error in file" );
    if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED) )
        mbedtls_snprintf( buf, buflen, "HMAC_DRBG - The entropy source failed" );
#endif /* MBEDTLS_HMAC_DRBG_C */

#if defined(MBEDTLS_MD2_C)
    if( use_ret == -(MBEDTLS_ERR_MD2_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "MD2 - Read/write error in file" );
#endif /* MBEDTLS_MD2_C */

#if defined(MBEDTLS_MD4_C)
    if( use_ret == -(MBEDTLS_ERR_MD4_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "MD4 - Read/write error in file" );
#endif /* MBEDTLS_MD4_C */

#if defined(MBEDTLS_MD5_C)
    if( use_ret == -(MBEDTLS_ERR_MD5_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "MD5 - Read/write error in file" );
#endif /* MBEDTLS_MD5_C */

#if defined(MBEDTLS_NET_C)
    if( use_ret == -(MBEDTLS_ERR_NET_SOCKET_FAILED) )
        mbedtls_snprintf( buf, buflen, "NET - Failed to open a socket" );
    if( use_ret == -(MBEDTLS_ERR_NET_CONNECT_FAILED) )
        mbedtls_snprintf( buf, buflen, "NET - The connection to the given server / port failed" );
    if( use_ret == -(MBEDTLS_ERR_NET_BIND_FAILED) )
        mbedtls_snprintf( buf, buflen, "NET - Binding of the socket failed" );
    if( use_ret == -(MBEDTLS_ERR_NET_LISTEN_FAILED) )
        mbedtls_snprintf( buf, buflen, "NET - Could not listen on the socket" );
    if( use_ret == -(MBEDTLS_ERR_NET_ACCEPT_FAILED) )
        mbedtls_snprintf( buf, buflen, "NET - Could not accept the incoming connection" );
    if( use_ret == -(MBEDTLS_ERR_NET_RECV_FAILED) )
        mbedtls_snprintf( buf, buflen, "NET - Reading information from the socket failed" );
    if( use_ret == -(MBEDTLS_ERR_NET_SEND_FAILED) )
        mbedtls_snprintf( buf, buflen, "NET - Sending information through the socket failed" );
    if( use_ret == -(MBEDTLS_ERR_NET_CONN_RESET) )
        mbedtls_snprintf( buf, buflen, "NET - Connection was reset by peer" );
    if( use_ret == -(MBEDTLS_ERR_NET_WANT_READ) )
        mbedtls_snprintf( buf, buflen, "NET - Connection requires a read call" );
    if( use_ret == -(MBEDTLS_ERR_NET_WANT_WRITE) )
        mbedtls_snprintf( buf, buflen, "NET - Connection requires a write call" );
    if( use_ret == -(MBEDTLS_ERR_NET_UNKNOWN_HOST) )
        mbedtls_snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" );
    if( use_ret == -(MBEDTLS_ERR_NET_TIMEOUT) )
        mbedtls_snprintf( buf, buflen, "NET - The operation timed out" );
#endif /* MBEDTLS_NET_C */

#if defined(MBEDTLS_OID_C)
    if( use_ret == -(MBEDTLS_ERR_OID_NOT_FOUND) )
        mbedtls_snprintf( buf, buflen, "OID - OID is not found" );
    if( use_ret == -(MBEDTLS_ERR_OID_BUF_TOO_SMALL) )
        mbedtls_snprintf( buf, buflen, "OID - output buffer is too small" );
#endif /* MBEDTLS_OID_C */

#if defined(MBEDTLS_PADLOCK_C)
    if( use_ret == -(MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED) )
        mbedtls_snprintf( buf, buflen, "PADLOCK - Input data should be aligned" );
#endif /* MBEDTLS_PADLOCK_C */

#if defined(MBEDTLS_RIPEMD160_C)
    if( use_ret == -(MBEDTLS_ERR_RIPEMD160_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "RIPEMD160 - Read/write error in file" );
#endif /* MBEDTLS_RIPEMD160_C */

#if defined(MBEDTLS_SHA1_C)
    if( use_ret == -(MBEDTLS_ERR_SHA1_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "SHA1 - Read/write error in file" );
#endif /* MBEDTLS_SHA1_C */

#if defined(MBEDTLS_SHA256_C)
    if( use_ret == -(MBEDTLS_ERR_SHA256_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "SHA256 - Read/write error in file" );
#endif /* MBEDTLS_SHA256_C */

#if defined(MBEDTLS_SHA512_C)
    if( use_ret == -(MBEDTLS_ERR_SHA512_FILE_IO_ERROR) )
        mbedtls_snprintf( buf, buflen, "SHA512 - Read/write error in file" );
#endif /* MBEDTLS_SHA512_C */

#if defined(MBEDTLS_THREADING_C)
    if( use_ret == -(MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE) )
        mbedtls_snprintf( buf, buflen, "THREADING - The selected feature is not available" );
    if( use_ret == -(MBEDTLS_ERR_THREADING_BAD_INPUT_DATA) )
        mbedtls_snprintf( buf, buflen, "THREADING - Bad input parameters to function" );
    if( use_ret == -(MBEDTLS_ERR_THREADING_MUTEX_ERROR) )
        mbedtls_snprintf( buf, buflen, "THREADING - Locking / unlocking / free failed with error code" );
#endif /* MBEDTLS_THREADING_C */

#if defined(MBEDTLS_XTEA_C)
    if( use_ret == -(MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH) )
        mbedtls_snprintf( buf, buflen, "XTEA - The data input has an invalid length" );
#endif /* MBEDTLS_XTEA_C */
733
    // END generated code
734 735 736 737

    if( strlen( buf ) != 0 )
        return;

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
738
    mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
739 740
}

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
741
#else /* MBEDTLS_ERROR_C */
742

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
743
#if defined(MBEDTLS_ERROR_STRERROR_DUMMY)
744 745

/*
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
746
 * Provide an non-function in case MBEDTLS_ERROR_C is not defined
747
 */
Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
748
void mbedtls_strerror( int ret, char *buf, size_t buflen )
749 750 751 752 753 754 755
{
    ((void) ret);

    if( buflen > 0 )
        buf[0] = '\0';
}

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
756
#endif /* MBEDTLS_ERROR_STRERROR_DUMMY */
757

Manuel Pégourié-Gonnard's avatar
Manuel Pégourié-Gonnard committed
758
#endif /* MBEDTLS_ERROR_C */