1 /* 2 * Error message information 3 * 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved 5 * SPDX-License-Identifier: GPL-2.0 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * This file is part of mbed TLS (https://tls.mbed.org) 22 */ 23 24 #if !defined(MBEDTLS_CONFIG_FILE) 25 #include "mbedtls/config.h" 26 #else 27 #include MBEDTLS_CONFIG_FILE 28 #endif 29 30 #if defined(MBEDTLS_ERROR_C) || defined(MBEDTLS_ERROR_STRERROR_DUMMY) 31 #include "mbedtls/error.h" 32 #include <string.h> 33 #endif 34 35 #if defined(MBEDTLS_PLATFORM_C) 36 #include "mbedtls/platform.h" 37 #else 38 #define mbedtls_snprintf snprintf 39 #define mbedtls_time_t time_t 40 #endif 41 42 #if defined(MBEDTLS_ERROR_C) 43 44 #include <stdio.h> 45 46 #if defined(MBEDTLS_AES_C) 47 #include "mbedtls/aes.h" 48 #endif 49 50 #if defined(MBEDTLS_ARC4_C) 51 #include "mbedtls/arc4.h" 52 #endif 53 54 #if defined(MBEDTLS_BASE64_C) 55 #include "mbedtls/base64.h" 56 #endif 57 58 #if defined(MBEDTLS_BIGNUM_C) 59 #include "mbedtls/bignum.h" 60 #endif 61 62 #if defined(MBEDTLS_BLOWFISH_C) 63 #include "mbedtls/blowfish.h" 64 #endif 65 66 #if defined(MBEDTLS_CAMELLIA_C) 67 #include "mbedtls/camellia.h" 68 #endif 69 70 #if defined(MBEDTLS_CCM_C) 71 #include "mbedtls/ccm.h" 72 #endif 73 74 #if defined(MBEDTLS_CIPHER_C) 75 #include "mbedtls/cipher.h" 76 #endif 77 78 #if defined(MBEDTLS_CMAC_C) 79 #include "mbedtls/cmac.h" 80 #endif 81 82 #if defined(MBEDTLS_CTR_DRBG_C) 83 #include "mbedtls/ctr_drbg.h" 84 #endif 85 86 #if defined(MBEDTLS_DES_C) 87 #include "mbedtls/des.h" 88 #endif 89 90 #if defined(MBEDTLS_DHM_C) 91 #include "mbedtls/dhm.h" 92 #endif 93 94 #if defined(MBEDTLS_ECP_C) 95 #include "mbedtls/ecp.h" 96 #endif 97 98 #if defined(MBEDTLS_ENTROPY_C) 99 #include "mbedtls/entropy.h" 100 #endif 101 102 #if defined(MBEDTLS_GCM_C) 103 #include "mbedtls/gcm.h" 104 #endif 105 106 #if defined(MBEDTLS_HMAC_DRBG_C) 107 #include "mbedtls/hmac_drbg.h" 108 #endif 109 110 #if defined(MBEDTLS_MD_C) 111 #include "mbedtls/md.h" 112 #endif 113 114 #if defined(MBEDTLS_MD2_C) 115 #include "mbedtls/md2.h" 116 #endif 117 118 #if defined(MBEDTLS_MD4_C) 119 #include "mbedtls/md4.h" 120 #endif 121 122 #if defined(MBEDTLS_MD5_C) 123 #include "mbedtls/md5.h" 124 #endif 125 126 #if defined(MBEDTLS_NET_C) 127 #include "mbedtls/net_sockets.h" 128 #endif 129 130 #if defined(MBEDTLS_OID_C) 131 #include "mbedtls/oid.h" 132 #endif 133 134 #if defined(MBEDTLS_PADLOCK_C) 135 #include "mbedtls/padlock.h" 136 #endif 137 138 #if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C) 139 #include "mbedtls/pem.h" 140 #endif 141 142 #if defined(MBEDTLS_PK_C) 143 #include "mbedtls/pk.h" 144 #endif 145 146 #if defined(MBEDTLS_PKCS12_C) 147 #include "mbedtls/pkcs12.h" 148 #endif 149 150 #if defined(MBEDTLS_PKCS5_C) 151 #include "mbedtls/pkcs5.h" 152 #endif 153 154 #if defined(MBEDTLS_RIPEMD160_C) 155 #include "mbedtls/ripemd160.h" 156 #endif 157 158 #if defined(MBEDTLS_RSA_C) 159 #include "mbedtls/rsa.h" 160 #endif 161 162 #if defined(MBEDTLS_SHA1_C) 163 #include "mbedtls/sha1.h" 164 #endif 165 166 #if defined(MBEDTLS_SHA256_C) 167 #include "mbedtls/sha256.h" 168 #endif 169 170 #if defined(MBEDTLS_SHA512_C) 171 #include "mbedtls/sha512.h" 172 #endif 173 174 #if defined(MBEDTLS_SSL_TLS_C) 175 #include "mbedtls/ssl.h" 176 #endif 177 178 #if defined(MBEDTLS_THREADING_C) 179 #include "mbedtls/threading.h" 180 #endif 181 182 #if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) 183 #include "mbedtls/x509.h" 184 #endif 185 186 #if defined(MBEDTLS_XTEA_C) 187 #include "mbedtls/xtea.h" 188 #endif 189 190 191 void mbedtls_strerror( int ret, char *buf, size_t buflen ) 192 { 193 size_t len; 194 int use_ret; 195 196 if( buflen == 0 ) 197 return; 198 199 memset( buf, 0x00, buflen ); 200 201 if( ret < 0 ) 202 ret = -ret; 203 204 if( ret & 0xFF80 ) 205 { 206 use_ret = ret & 0xFF80; 207 208 // High level error codes 209 // 210 // BEGIN generated code 211 #if defined(MBEDTLS_CIPHER_C) 212 if( use_ret == -(MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) ) 213 mbedtls_snprintf( buf, buflen, "CIPHER - The selected feature is not available" ); 214 if( use_ret == -(MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA) ) 215 mbedtls_snprintf( buf, buflen, "CIPHER - Bad input parameters" ); 216 if( use_ret == -(MBEDTLS_ERR_CIPHER_ALLOC_FAILED) ) 217 mbedtls_snprintf( buf, buflen, "CIPHER - Failed to allocate memory" ); 218 if( use_ret == -(MBEDTLS_ERR_CIPHER_INVALID_PADDING) ) 219 mbedtls_snprintf( buf, buflen, "CIPHER - Input data contains invalid padding and is rejected" ); 220 if( use_ret == -(MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED) ) 221 mbedtls_snprintf( buf, buflen, "CIPHER - Decryption of block requires a full block" ); 222 if( use_ret == -(MBEDTLS_ERR_CIPHER_AUTH_FAILED) ) 223 mbedtls_snprintf( buf, buflen, "CIPHER - Authentication failed (for AEAD modes)" ); 224 if( use_ret == -(MBEDTLS_ERR_CIPHER_INVALID_CONTEXT) ) 225 mbedtls_snprintf( buf, buflen, "CIPHER - The context is invalid. For example, because it was freed" ); 226 if( use_ret == -(MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED) ) 227 mbedtls_snprintf( buf, buflen, "CIPHER - Cipher hardware accelerator failed" ); 228 #endif /* MBEDTLS_CIPHER_C */ 229 230 #if defined(MBEDTLS_DHM_C) 231 if( use_ret == -(MBEDTLS_ERR_DHM_BAD_INPUT_DATA) ) 232 mbedtls_snprintf( buf, buflen, "DHM - Bad input parameters" ); 233 if( use_ret == -(MBEDTLS_ERR_DHM_READ_PARAMS_FAILED) ) 234 mbedtls_snprintf( buf, buflen, "DHM - Reading of the DHM parameters failed" ); 235 if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED) ) 236 mbedtls_snprintf( buf, buflen, "DHM - Making of the DHM parameters failed" ); 237 if( use_ret == -(MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED) ) 238 mbedtls_snprintf( buf, buflen, "DHM - Reading of the public values failed" ); 239 if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED) ) 240 mbedtls_snprintf( buf, buflen, "DHM - Making of the public value failed" ); 241 if( use_ret == -(MBEDTLS_ERR_DHM_CALC_SECRET_FAILED) ) 242 mbedtls_snprintf( buf, buflen, "DHM - Calculation of the DHM secret failed" ); 243 if( use_ret == -(MBEDTLS_ERR_DHM_INVALID_FORMAT) ) 244 mbedtls_snprintf( buf, buflen, "DHM - The ASN.1 data is not formatted correctly" ); 245 if( use_ret == -(MBEDTLS_ERR_DHM_ALLOC_FAILED) ) 246 mbedtls_snprintf( buf, buflen, "DHM - Allocation of memory failed" ); 247 if( use_ret == -(MBEDTLS_ERR_DHM_FILE_IO_ERROR) ) 248 mbedtls_snprintf( buf, buflen, "DHM - Read or write of file failed" ); 249 if( use_ret == -(MBEDTLS_ERR_DHM_HW_ACCEL_FAILED) ) 250 mbedtls_snprintf( buf, buflen, "DHM - DHM hardware accelerator failed" ); 251 if( use_ret == -(MBEDTLS_ERR_DHM_SET_GROUP_FAILED) ) 252 mbedtls_snprintf( buf, buflen, "DHM - Setting the modulus and generator failed" ); 253 #endif /* MBEDTLS_DHM_C */ 254 255 #if defined(MBEDTLS_ECP_C) 256 if( use_ret == -(MBEDTLS_ERR_ECP_BAD_INPUT_DATA) ) 257 mbedtls_snprintf( buf, buflen, "ECP - Bad input parameters to function" ); 258 if( use_ret == -(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL) ) 259 mbedtls_snprintf( buf, buflen, "ECP - The buffer is too small to write to" ); 260 if( use_ret == -(MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE) ) 261 mbedtls_snprintf( buf, buflen, "ECP - Requested curve not available" ); 262 if( use_ret == -(MBEDTLS_ERR_ECP_VERIFY_FAILED) ) 263 mbedtls_snprintf( buf, buflen, "ECP - The signature is not valid" ); 264 if( use_ret == -(MBEDTLS_ERR_ECP_ALLOC_FAILED) ) 265 mbedtls_snprintf( buf, buflen, "ECP - Memory allocation failed" ); 266 if( use_ret == -(MBEDTLS_ERR_ECP_RANDOM_FAILED) ) 267 mbedtls_snprintf( buf, buflen, "ECP - Generation of random value, such as (ephemeral) key, failed" ); 268 if( use_ret == -(MBEDTLS_ERR_ECP_INVALID_KEY) ) 269 mbedtls_snprintf( buf, buflen, "ECP - Invalid private or public key" ); 270 if( use_ret == -(MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH) ) 271 mbedtls_snprintf( buf, buflen, "ECP - The buffer contains a valid signature followed by more data" ); 272 if( use_ret == -(MBEDTLS_ERR_ECP_HW_ACCEL_FAILED) ) 273 mbedtls_snprintf( buf, buflen, "ECP - ECP hardware accelerator failed" ); 274 #endif /* MBEDTLS_ECP_C */ 275 276 #if defined(MBEDTLS_MD_C) 277 if( use_ret == -(MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE) ) 278 mbedtls_snprintf( buf, buflen, "MD - The selected feature is not available" ); 279 if( use_ret == -(MBEDTLS_ERR_MD_BAD_INPUT_DATA) ) 280 mbedtls_snprintf( buf, buflen, "MD - Bad input parameters to function" ); 281 if( use_ret == -(MBEDTLS_ERR_MD_ALLOC_FAILED) ) 282 mbedtls_snprintf( buf, buflen, "MD - Failed to allocate memory" ); 283 if( use_ret == -(MBEDTLS_ERR_MD_FILE_IO_ERROR) ) 284 mbedtls_snprintf( buf, buflen, "MD - Opening or reading of file failed" ); 285 if( use_ret == -(MBEDTLS_ERR_MD_HW_ACCEL_FAILED) ) 286 mbedtls_snprintf( buf, buflen, "MD - MD hardware accelerator failed" ); 287 #endif /* MBEDTLS_MD_C */ 288 289 #if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C) 290 if( use_ret == -(MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT) ) 291 mbedtls_snprintf( buf, buflen, "PEM - No PEM header or footer found" ); 292 if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_DATA) ) 293 mbedtls_snprintf( buf, buflen, "PEM - PEM string is not as expected" ); 294 if( use_ret == -(MBEDTLS_ERR_PEM_ALLOC_FAILED) ) 295 mbedtls_snprintf( buf, buflen, "PEM - Failed to allocate memory" ); 296 if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_ENC_IV) ) 297 mbedtls_snprintf( buf, buflen, "PEM - RSA IV is not in hex-format" ); 298 if( use_ret == -(MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG) ) 299 mbedtls_snprintf( buf, buflen, "PEM - Unsupported key encryption algorithm" ); 300 if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_REQUIRED) ) 301 mbedtls_snprintf( buf, buflen, "PEM - Private key password can't be empty" ); 302 if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_MISMATCH) ) 303 mbedtls_snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" ); 304 if( use_ret == -(MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE) ) 305 mbedtls_snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" ); 306 if( use_ret == -(MBEDTLS_ERR_PEM_BAD_INPUT_DATA) ) 307 mbedtls_snprintf( buf, buflen, "PEM - Bad input parameters to function" ); 308 #endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */ 309 310 #if defined(MBEDTLS_PK_C) 311 if( use_ret == -(MBEDTLS_ERR_PK_ALLOC_FAILED) ) 312 mbedtls_snprintf( buf, buflen, "PK - Memory allocation failed" ); 313 if( use_ret == -(MBEDTLS_ERR_PK_TYPE_MISMATCH) ) 314 mbedtls_snprintf( buf, buflen, "PK - Type mismatch, eg attempt to encrypt with an ECDSA key" ); 315 if( use_ret == -(MBEDTLS_ERR_PK_BAD_INPUT_DATA) ) 316 mbedtls_snprintf( buf, buflen, "PK - Bad input parameters to function" ); 317 if( use_ret == -(MBEDTLS_ERR_PK_FILE_IO_ERROR) ) 318 mbedtls_snprintf( buf, buflen, "PK - Read/write of file failed" ); 319 if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_VERSION) ) 320 mbedtls_snprintf( buf, buflen, "PK - Unsupported key version" ); 321 if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT) ) 322 mbedtls_snprintf( buf, buflen, "PK - Invalid key tag or value" ); 323 if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_PK_ALG) ) 324 mbedtls_snprintf( buf, buflen, "PK - Key algorithm is unsupported (only RSA and EC are supported)" ); 325 if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_REQUIRED) ) 326 mbedtls_snprintf( buf, buflen, "PK - Private key password can't be empty" ); 327 if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_MISMATCH) ) 328 mbedtls_snprintf( buf, buflen, "PK - Given private key password does not allow for correct decryption" ); 329 if( use_ret == -(MBEDTLS_ERR_PK_INVALID_PUBKEY) ) 330 mbedtls_snprintf( buf, buflen, "PK - The pubkey tag or value is invalid (only RSA and EC are supported)" ); 331 if( use_ret == -(MBEDTLS_ERR_PK_INVALID_ALG) ) 332 mbedtls_snprintf( buf, buflen, "PK - The algorithm tag or value is invalid" ); 333 if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE) ) 334 mbedtls_snprintf( buf, buflen, "PK - Elliptic curve is unsupported (only NIST curves are supported)" ); 335 if( use_ret == -(MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE) ) 336 mbedtls_snprintf( buf, buflen, "PK - Unavailable feature, e.g. RSA disabled for RSA key" ); 337 if( use_ret == -(MBEDTLS_ERR_PK_SIG_LEN_MISMATCH) ) 338 mbedtls_snprintf( buf, buflen, "PK - The buffer contains a valid signature followed by more data" ); 339 if( use_ret == -(MBEDTLS_ERR_PK_HW_ACCEL_FAILED) ) 340 mbedtls_snprintf( buf, buflen, "PK - PK hardware accelerator failed" ); 341 #endif /* MBEDTLS_PK_C */ 342 343 #if defined(MBEDTLS_PKCS12_C) 344 if( use_ret == -(MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA) ) 345 mbedtls_snprintf( buf, buflen, "PKCS12 - Bad input parameters to function" ); 346 if( use_ret == -(MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE) ) 347 mbedtls_snprintf( buf, buflen, "PKCS12 - Feature not available, e.g. unsupported encryption scheme" ); 348 if( use_ret == -(MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT) ) 349 mbedtls_snprintf( buf, buflen, "PKCS12 - PBE ASN.1 data not as expected" ); 350 if( use_ret == -(MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH) ) 351 mbedtls_snprintf( buf, buflen, "PKCS12 - Given private key password does not allow for correct decryption" ); 352 #endif /* MBEDTLS_PKCS12_C */ 353 354 #if defined(MBEDTLS_PKCS5_C) 355 if( use_ret == -(MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA) ) 356 mbedtls_snprintf( buf, buflen, "PKCS5 - Bad input parameters to function" ); 357 if( use_ret == -(MBEDTLS_ERR_PKCS5_INVALID_FORMAT) ) 358 mbedtls_snprintf( buf, buflen, "PKCS5 - Unexpected ASN.1 data" ); 359 if( use_ret == -(MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE) ) 360 mbedtls_snprintf( buf, buflen, "PKCS5 - Requested encryption or digest alg not available" ); 361 if( use_ret == -(MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH) ) 362 mbedtls_snprintf( buf, buflen, "PKCS5 - Given private key password does not allow for correct decryption" ); 363 #endif /* MBEDTLS_PKCS5_C */ 364 365 #if defined(MBEDTLS_RSA_C) 366 if( use_ret == -(MBEDTLS_ERR_RSA_BAD_INPUT_DATA) ) 367 mbedtls_snprintf( buf, buflen, "RSA - Bad input parameters to function" ); 368 if( use_ret == -(MBEDTLS_ERR_RSA_INVALID_PADDING) ) 369 mbedtls_snprintf( buf, buflen, "RSA - Input data contains invalid padding and is rejected" ); 370 if( use_ret == -(MBEDTLS_ERR_RSA_KEY_GEN_FAILED) ) 371 mbedtls_snprintf( buf, buflen, "RSA - Something failed during generation of a key" ); 372 if( use_ret == -(MBEDTLS_ERR_RSA_KEY_CHECK_FAILED) ) 373 mbedtls_snprintf( buf, buflen, "RSA - Key failed to pass the validity check of the library" ); 374 if( use_ret == -(MBEDTLS_ERR_RSA_PUBLIC_FAILED) ) 375 mbedtls_snprintf( buf, buflen, "RSA - The public key operation failed" ); 376 if( use_ret == -(MBEDTLS_ERR_RSA_PRIVATE_FAILED) ) 377 mbedtls_snprintf( buf, buflen, "RSA - The private key operation failed" ); 378 if( use_ret == -(MBEDTLS_ERR_RSA_VERIFY_FAILED) ) 379 mbedtls_snprintf( buf, buflen, "RSA - The PKCS#1 verification failed" ); 380 if( use_ret == -(MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE) ) 381 mbedtls_snprintf( buf, buflen, "RSA - The output buffer for decryption is not large enough" ); 382 if( use_ret == -(MBEDTLS_ERR_RSA_RNG_FAILED) ) 383 mbedtls_snprintf( buf, buflen, "RSA - The random generator failed to generate non-zeros" ); 384 if( use_ret == -(MBEDTLS_ERR_RSA_UNSUPPORTED_OPERATION) ) 385 mbedtls_snprintf( buf, buflen, "RSA - The implementation does not offer the requested operation, for example, because of security violations or lack of functionality" ); 386 if( use_ret == -(MBEDTLS_ERR_RSA_HW_ACCEL_FAILED) ) 387 mbedtls_snprintf( buf, buflen, "RSA - RSA hardware accelerator failed" ); 388 #endif /* MBEDTLS_RSA_C */ 389 390 #if defined(MBEDTLS_SSL_TLS_C) 391 if( use_ret == -(MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE) ) 392 mbedtls_snprintf( buf, buflen, "SSL - The requested feature is not available" ); 393 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_INPUT_DATA) ) 394 mbedtls_snprintf( buf, buflen, "SSL - Bad input parameters to function" ); 395 if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_MAC) ) 396 mbedtls_snprintf( buf, buflen, "SSL - Verification of the message MAC failed" ); 397 if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_RECORD) ) 398 mbedtls_snprintf( buf, buflen, "SSL - An invalid SSL record was received" ); 399 if( use_ret == -(MBEDTLS_ERR_SSL_CONN_EOF) ) 400 mbedtls_snprintf( buf, buflen, "SSL - The connection indicated an EOF" ); 401 if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_CIPHER) ) 402 mbedtls_snprintf( buf, buflen, "SSL - An unknown cipher was received" ); 403 if( use_ret == -(MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN) ) 404 mbedtls_snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" ); 405 if( use_ret == -(MBEDTLS_ERR_SSL_NO_RNG) ) 406 mbedtls_snprintf( buf, buflen, "SSL - No RNG was provided to the SSL module" ); 407 if( use_ret == -(MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE) ) 408 mbedtls_snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" ); 409 if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE) ) 410 mbedtls_snprintf( buf, buflen, "SSL - Our own certificate(s) is/are too large to send in an SSL message" ); 411 if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED) ) 412 mbedtls_snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" ); 413 if( use_ret == -(MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) ) 414 mbedtls_snprintf( buf, buflen, "SSL - The own private key or pre-shared key is not set, but needed" ); 415 if( use_ret == -(MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED) ) 416 mbedtls_snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" ); 417 if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE) ) 418 mbedtls_snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" ); 419 if( use_ret == -(MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE) ) 420 { 421 mbedtls_snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" ); 422 return; 423 } 424 if( use_ret == -(MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED) ) 425 mbedtls_snprintf( buf, buflen, "SSL - Verification of our peer failed" ); 426 if( use_ret == -(MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) ) 427 mbedtls_snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" ); 428 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO) ) 429 mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" ); 430 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO) ) 431 mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" ); 432 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE) ) 433 mbedtls_snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" ); 434 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) ) 435 mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" ); 436 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) ) 437 mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" ); 438 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) ) 439 mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" ); 440 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) ) 441 mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" ); 442 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP) ) 443 mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public" ); 444 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS) ) 445 mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret" ); 446 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) ) 447 mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" ); 448 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) ) 449 mbedtls_snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" ); 450 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_FINISHED) ) 451 mbedtls_snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" ); 452 if( use_ret == -(MBEDTLS_ERR_SSL_ALLOC_FAILED) ) 453 mbedtls_snprintf( buf, buflen, "SSL - Memory allocation failed" ); 454 if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FAILED) ) 455 mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function returned with error" ); 456 if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH) ) 457 mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function skipped / left alone data" ); 458 if( use_ret == -(MBEDTLS_ERR_SSL_COMPRESSION_FAILED) ) 459 mbedtls_snprintf( buf, buflen, "SSL - Processing of the compression / decompression failed" ); 460 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION) ) 461 mbedtls_snprintf( buf, buflen, "SSL - Handshake protocol not within min/max boundaries" ); 462 if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET) ) 463 mbedtls_snprintf( buf, buflen, "SSL - Processing of the NewSessionTicket handshake message failed" ); 464 if( use_ret == -(MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) ) 465 mbedtls_snprintf( buf, buflen, "SSL - Session ticket has expired" ); 466 if( use_ret == -(MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH) ) 467 mbedtls_snprintf( buf, buflen, "SSL - Public key type mismatch (eg, asked for RSA key exchange and presented EC key)" ); 468 if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) ) 469 mbedtls_snprintf( buf, buflen, "SSL - Unknown identity received (eg, PSK identity)" ); 470 if( use_ret == -(MBEDTLS_ERR_SSL_INTERNAL_ERROR) ) 471 mbedtls_snprintf( buf, buflen, "SSL - Internal error (eg, unexpected failure in lower-level module)" ); 472 if( use_ret == -(MBEDTLS_ERR_SSL_COUNTER_WRAPPING) ) 473 mbedtls_snprintf( buf, buflen, "SSL - A counter would wrap (eg, too many messages exchanged)" ); 474 if( use_ret == -(MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO) ) 475 mbedtls_snprintf( buf, buflen, "SSL - Unexpected message at ServerHello in renegotiation" ); 476 if( use_ret == -(MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) ) 477 mbedtls_snprintf( buf, buflen, "SSL - DTLS client must retry for hello verification" ); 478 if( use_ret == -(MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) ) 479 mbedtls_snprintf( buf, buflen, "SSL - A buffer is too small to receive or write a message" ); 480 if( use_ret == -(MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE) ) 481 mbedtls_snprintf( buf, buflen, "SSL - None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages)" ); 482 if( use_ret == -(MBEDTLS_ERR_SSL_WANT_READ) ) 483 mbedtls_snprintf( buf, buflen, "SSL - Connection requires a read call" ); 484 if( use_ret == -(MBEDTLS_ERR_SSL_WANT_WRITE) ) 485 mbedtls_snprintf( buf, buflen, "SSL - Connection requires a write call" ); 486 if( use_ret == -(MBEDTLS_ERR_SSL_TIMEOUT) ) 487 mbedtls_snprintf( buf, buflen, "SSL - The operation timed out" ); 488 if( use_ret == -(MBEDTLS_ERR_SSL_CLIENT_RECONNECT) ) 489 mbedtls_snprintf( buf, buflen, "SSL - The client initiated a reconnect from the same port" ); 490 if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_RECORD) ) 491 mbedtls_snprintf( buf, buflen, "SSL - Record header looks valid but is not expected" ); 492 if( use_ret == -(MBEDTLS_ERR_SSL_NON_FATAL) ) 493 mbedtls_snprintf( buf, buflen, "SSL - The alert message received indicates a non-fatal error" ); 494 if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH) ) 495 mbedtls_snprintf( buf, buflen, "SSL - Couldn't set the hash for verifying CertificateVerify" ); 496 #endif /* MBEDTLS_SSL_TLS_C */ 497 498 #if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) 499 if( use_ret == -(MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE) ) 500 mbedtls_snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" ); 501 if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_OID) ) 502 mbedtls_snprintf( buf, buflen, "X509 - Requested OID is unknown" ); 503 if( use_ret == -(MBEDTLS_ERR_X509_INVALID_FORMAT) ) 504 mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR format is invalid, e.g. different type expected" ); 505 if( use_ret == -(MBEDTLS_ERR_X509_INVALID_VERSION) ) 506 mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR version element is invalid" ); 507 if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SERIAL) ) 508 mbedtls_snprintf( buf, buflen, "X509 - The serial tag or value is invalid" ); 509 if( use_ret == -(MBEDTLS_ERR_X509_INVALID_ALG) ) 510 mbedtls_snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" ); 511 if( use_ret == -(MBEDTLS_ERR_X509_INVALID_NAME) ) 512 mbedtls_snprintf( buf, buflen, "X509 - The name tag or value is invalid" ); 513 if( use_ret == -(MBEDTLS_ERR_X509_INVALID_DATE) ) 514 mbedtls_snprintf( buf, buflen, "X509 - The date tag or value is invalid" ); 515 if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SIGNATURE) ) 516 mbedtls_snprintf( buf, buflen, "X509 - The signature tag or value invalid" ); 517 if( use_ret == -(MBEDTLS_ERR_X509_INVALID_EXTENSIONS) ) 518 mbedtls_snprintf( buf, buflen, "X509 - The extension tag or value is invalid" ); 519 if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_VERSION) ) 520 mbedtls_snprintf( buf, buflen, "X509 - CRT/CRL/CSR has an unsupported version number" ); 521 if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG) ) 522 mbedtls_snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" ); 523 if( use_ret == -(MBEDTLS_ERR_X509_SIG_MISMATCH) ) 524 mbedtls_snprintf( buf, buflen, "X509 - Signature algorithms do not match. (see \\c ::mbedtls_x509_crt sig_oid)" ); 525 if( use_ret == -(MBEDTLS_ERR_X509_CERT_VERIFY_FAILED) ) 526 mbedtls_snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" ); 527 if( use_ret == -(MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT) ) 528 mbedtls_snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" ); 529 if( use_ret == -(MBEDTLS_ERR_X509_BAD_INPUT_DATA) ) 530 mbedtls_snprintf( buf, buflen, "X509 - Input invalid" ); 531 if( use_ret == -(MBEDTLS_ERR_X509_ALLOC_FAILED) ) 532 mbedtls_snprintf( buf, buflen, "X509 - Allocation of memory failed" ); 533 if( use_ret == -(MBEDTLS_ERR_X509_FILE_IO_ERROR) ) 534 mbedtls_snprintf( buf, buflen, "X509 - Read/write of file failed" ); 535 if( use_ret == -(MBEDTLS_ERR_X509_BUFFER_TOO_SMALL) ) 536 mbedtls_snprintf( buf, buflen, "X509 - Destination buffer is too small" ); 537 if( use_ret == -(MBEDTLS_ERR_X509_FATAL_ERROR) ) 538 mbedtls_snprintf( buf, buflen, "X509 - A fatal error occurred, eg the chain is too long or the vrfy callback failed" ); 539 #endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */ 540 // END generated code 541 542 if( strlen( buf ) == 0 ) 543 mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret ); 544 } 545 546 use_ret = ret & ~0xFF80; 547 548 if( use_ret == 0 ) 549 return; 550 551 // If high level code is present, make a concatenation between both 552 // error strings. 553 // 554 len = strlen( buf ); 555 556 if( len > 0 ) 557 { 558 if( buflen - len < 5 ) 559 return; 560 561 mbedtls_snprintf( buf + len, buflen - len, " : " ); 562 563 buf += len + 3; 564 buflen -= len + 3; 565 } 566 567 // Low level error codes 568 // 569 // BEGIN generated code 570 #if defined(MBEDTLS_AES_C) 571 if( use_ret == -(MBEDTLS_ERR_AES_INVALID_KEY_LENGTH) ) 572 mbedtls_snprintf( buf, buflen, "AES - Invalid key length" ); 573 if( use_ret == -(MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH) ) 574 mbedtls_snprintf( buf, buflen, "AES - Invalid data input length" ); 575 if( use_ret == -(MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE) ) 576 mbedtls_snprintf( buf, buflen, "AES - Feature not available. For example, an unsupported AES key size" ); 577 if( use_ret == -(MBEDTLS_ERR_AES_HW_ACCEL_FAILED) ) 578 mbedtls_snprintf( buf, buflen, "AES - AES hardware accelerator failed" ); 579 #endif /* MBEDTLS_AES_C */ 580 581 #if defined(MBEDTLS_ARC4_C) 582 if( use_ret == -(MBEDTLS_ERR_ARC4_HW_ACCEL_FAILED) ) 583 mbedtls_snprintf( buf, buflen, "ARC4 - ARC4 hardware accelerator failed" ); 584 #endif /* MBEDTLS_ARC4_C */ 585 586 #if defined(MBEDTLS_ASN1_PARSE_C) 587 if( use_ret == -(MBEDTLS_ERR_ASN1_OUT_OF_DATA) ) 588 mbedtls_snprintf( buf, buflen, "ASN1 - Out of data when parsing an ASN1 data structure" ); 589 if( use_ret == -(MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) ) 590 mbedtls_snprintf( buf, buflen, "ASN1 - ASN1 tag was of an unexpected value" ); 591 if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_LENGTH) ) 592 mbedtls_snprintf( buf, buflen, "ASN1 - Error when trying to determine the length or invalid length" ); 593 if( use_ret == -(MBEDTLS_ERR_ASN1_LENGTH_MISMATCH) ) 594 mbedtls_snprintf( buf, buflen, "ASN1 - Actual length differs from expected length" ); 595 if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_DATA) ) 596 mbedtls_snprintf( buf, buflen, "ASN1 - Data is invalid. (not used)" ); 597 if( use_ret == -(MBEDTLS_ERR_ASN1_ALLOC_FAILED) ) 598 mbedtls_snprintf( buf, buflen, "ASN1 - Memory allocation failed" ); 599 if( use_ret == -(MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) ) 600 mbedtls_snprintf( buf, buflen, "ASN1 - Buffer too small when writing ASN.1 data structure" ); 601 #endif /* MBEDTLS_ASN1_PARSE_C */ 602 603 #if defined(MBEDTLS_BASE64_C) 604 if( use_ret == -(MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL) ) 605 mbedtls_snprintf( buf, buflen, "BASE64 - Output buffer too small" ); 606 if( use_ret == -(MBEDTLS_ERR_BASE64_INVALID_CHARACTER) ) 607 mbedtls_snprintf( buf, buflen, "BASE64 - Invalid character in input" ); 608 #endif /* MBEDTLS_BASE64_C */ 609 610 #if defined(MBEDTLS_BIGNUM_C) 611 if( use_ret == -(MBEDTLS_ERR_MPI_FILE_IO_ERROR) ) 612 mbedtls_snprintf( buf, buflen, "BIGNUM - An error occurred while reading from or writing to a file" ); 613 if( use_ret == -(MBEDTLS_ERR_MPI_BAD_INPUT_DATA) ) 614 mbedtls_snprintf( buf, buflen, "BIGNUM - Bad input parameters to function" ); 615 if( use_ret == -(MBEDTLS_ERR_MPI_INVALID_CHARACTER) ) 616 mbedtls_snprintf( buf, buflen, "BIGNUM - There is an invalid character in the digit string" ); 617 if( use_ret == -(MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL) ) 618 mbedtls_snprintf( buf, buflen, "BIGNUM - The buffer is too small to write to" ); 619 if( use_ret == -(MBEDTLS_ERR_MPI_NEGATIVE_VALUE) ) 620 mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are negative or result in illegal output" ); 621 if( use_ret == -(MBEDTLS_ERR_MPI_DIVISION_BY_ZERO) ) 622 mbedtls_snprintf( buf, buflen, "BIGNUM - The input argument for division is zero, which is not allowed" ); 623 if( use_ret == -(MBEDTLS_ERR_MPI_NOT_ACCEPTABLE) ) 624 mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are not acceptable" ); 625 if( use_ret == -(MBEDTLS_ERR_MPI_ALLOC_FAILED) ) 626 mbedtls_snprintf( buf, buflen, "BIGNUM - Memory allocation failed" ); 627 #endif /* MBEDTLS_BIGNUM_C */ 628 629 #if defined(MBEDTLS_BLOWFISH_C) 630 if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH) ) 631 mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid key length" ); 632 if( use_ret == -(MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED) ) 633 mbedtls_snprintf( buf, buflen, "BLOWFISH - Blowfish hardware accelerator failed" ); 634 if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH) ) 635 mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid data input length" ); 636 #endif /* MBEDTLS_BLOWFISH_C */ 637 638 #if defined(MBEDTLS_CAMELLIA_C) 639 if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH) ) 640 mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid key length" ); 641 if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH) ) 642 mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid data input length" ); 643 if( use_ret == -(MBEDTLS_ERR_CAMELLIA_HW_ACCEL_FAILED) ) 644 mbedtls_snprintf( buf, buflen, "CAMELLIA - Camellia hardware accelerator failed" ); 645 #endif /* MBEDTLS_CAMELLIA_C */ 646 647 #if defined(MBEDTLS_CCM_C) 648 if( use_ret == -(MBEDTLS_ERR_CCM_BAD_INPUT) ) 649 mbedtls_snprintf( buf, buflen, "CCM - Bad input parameters to the function" ); 650 if( use_ret == -(MBEDTLS_ERR_CCM_AUTH_FAILED) ) 651 mbedtls_snprintf( buf, buflen, "CCM - Authenticated decryption failed" ); 652 if( use_ret == -(MBEDTLS_ERR_CCM_HW_ACCEL_FAILED) ) 653 mbedtls_snprintf( buf, buflen, "CCM - CCM hardware accelerator failed" ); 654 #endif /* MBEDTLS_CCM_C */ 655 656 #if defined(MBEDTLS_CMAC_C) 657 if( use_ret == -(MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED) ) 658 mbedtls_snprintf( buf, buflen, "CMAC - CMAC hardware accelerator failed" ); 659 #endif /* MBEDTLS_CMAC_C */ 660 661 #if defined(MBEDTLS_CTR_DRBG_C) 662 if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED) ) 663 mbedtls_snprintf( buf, buflen, "CTR_DRBG - The entropy source failed" ); 664 if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG) ) 665 mbedtls_snprintf( buf, buflen, "CTR_DRBG - The requested random buffer length is too big" ); 666 if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG) ) 667 mbedtls_snprintf( buf, buflen, "CTR_DRBG - The input (entropy + additional data) is too large" ); 668 if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR) ) 669 mbedtls_snprintf( buf, buflen, "CTR_DRBG - Read or write error in file" ); 670 #endif /* MBEDTLS_CTR_DRBG_C */ 671 672 #if defined(MBEDTLS_DES_C) 673 if( use_ret == -(MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH) ) 674 mbedtls_snprintf( buf, buflen, "DES - The data input has an invalid length" ); 675 if( use_ret == -(MBEDTLS_ERR_DES_HW_ACCEL_FAILED) ) 676 mbedtls_snprintf( buf, buflen, "DES - DES hardware accelerator failed" ); 677 #endif /* MBEDTLS_DES_C */ 678 679 #if defined(MBEDTLS_ENTROPY_C) 680 if( use_ret == -(MBEDTLS_ERR_ENTROPY_SOURCE_FAILED) ) 681 mbedtls_snprintf( buf, buflen, "ENTROPY - Critical entropy source failure" ); 682 if( use_ret == -(MBEDTLS_ERR_ENTROPY_MAX_SOURCES) ) 683 mbedtls_snprintf( buf, buflen, "ENTROPY - No more sources can be added" ); 684 if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED) ) 685 mbedtls_snprintf( buf, buflen, "ENTROPY - No sources have been added to poll" ); 686 if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE) ) 687 mbedtls_snprintf( buf, buflen, "ENTROPY - No strong sources have been added to poll" ); 688 if( use_ret == -(MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR) ) 689 mbedtls_snprintf( buf, buflen, "ENTROPY - Read/write error in file" ); 690 #endif /* MBEDTLS_ENTROPY_C */ 691 692 #if defined(MBEDTLS_GCM_C) 693 if( use_ret == -(MBEDTLS_ERR_GCM_AUTH_FAILED) ) 694 mbedtls_snprintf( buf, buflen, "GCM - Authenticated decryption failed" ); 695 if( use_ret == -(MBEDTLS_ERR_GCM_HW_ACCEL_FAILED) ) 696 mbedtls_snprintf( buf, buflen, "GCM - GCM hardware accelerator failed" ); 697 if( use_ret == -(MBEDTLS_ERR_GCM_BAD_INPUT) ) 698 mbedtls_snprintf( buf, buflen, "GCM - Bad input parameters to function" ); 699 #endif /* MBEDTLS_GCM_C */ 700 701 #if defined(MBEDTLS_HMAC_DRBG_C) 702 if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG) ) 703 mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Too many random requested in single call" ); 704 if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG) ) 705 mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Input too large (Entropy + additional)" ); 706 if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR) ) 707 mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Read/write error in file" ); 708 if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED) ) 709 mbedtls_snprintf( buf, buflen, "HMAC_DRBG - The entropy source failed" ); 710 #endif /* MBEDTLS_HMAC_DRBG_C */ 711 712 #if defined(MBEDTLS_MD2_C) 713 if( use_ret == -(MBEDTLS_ERR_MD2_HW_ACCEL_FAILED) ) 714 mbedtls_snprintf( buf, buflen, "MD2 - MD2 hardware accelerator failed" ); 715 #endif /* MBEDTLS_MD2_C */ 716 717 #if defined(MBEDTLS_MD4_C) 718 if( use_ret == -(MBEDTLS_ERR_MD4_HW_ACCEL_FAILED) ) 719 mbedtls_snprintf( buf, buflen, "MD4 - MD4 hardware accelerator failed" ); 720 #endif /* MBEDTLS_MD4_C */ 721 722 #if defined(MBEDTLS_MD5_C) 723 if( use_ret == -(MBEDTLS_ERR_MD5_HW_ACCEL_FAILED) ) 724 mbedtls_snprintf( buf, buflen, "MD5 - MD5 hardware accelerator failed" ); 725 #endif /* MBEDTLS_MD5_C */ 726 727 #if defined(MBEDTLS_NET_C) 728 if( use_ret == -(MBEDTLS_ERR_NET_SOCKET_FAILED) ) 729 mbedtls_snprintf( buf, buflen, "NET - Failed to open a socket" ); 730 if( use_ret == -(MBEDTLS_ERR_NET_CONNECT_FAILED) ) 731 mbedtls_snprintf( buf, buflen, "NET - The connection to the given server / port failed" ); 732 if( use_ret == -(MBEDTLS_ERR_NET_BIND_FAILED) ) 733 mbedtls_snprintf( buf, buflen, "NET - Binding of the socket failed" ); 734 if( use_ret == -(MBEDTLS_ERR_NET_LISTEN_FAILED) ) 735 mbedtls_snprintf( buf, buflen, "NET - Could not listen on the socket" ); 736 if( use_ret == -(MBEDTLS_ERR_NET_ACCEPT_FAILED) ) 737 mbedtls_snprintf( buf, buflen, "NET - Could not accept the incoming connection" ); 738 if( use_ret == -(MBEDTLS_ERR_NET_RECV_FAILED) ) 739 mbedtls_snprintf( buf, buflen, "NET - Reading information from the socket failed" ); 740 if( use_ret == -(MBEDTLS_ERR_NET_SEND_FAILED) ) 741 mbedtls_snprintf( buf, buflen, "NET - Sending information through the socket failed" ); 742 if( use_ret == -(MBEDTLS_ERR_NET_CONN_RESET) ) 743 mbedtls_snprintf( buf, buflen, "NET - Connection was reset by peer" ); 744 if( use_ret == -(MBEDTLS_ERR_NET_UNKNOWN_HOST) ) 745 mbedtls_snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" ); 746 if( use_ret == -(MBEDTLS_ERR_NET_BUFFER_TOO_SMALL) ) 747 mbedtls_snprintf( buf, buflen, "NET - Buffer is too small to hold the data" ); 748 if( use_ret == -(MBEDTLS_ERR_NET_INVALID_CONTEXT) ) 749 mbedtls_snprintf( buf, buflen, "NET - The context is invalid, eg because it was free()ed" ); 750 #endif /* MBEDTLS_NET_C */ 751 752 #if defined(MBEDTLS_OID_C) 753 if( use_ret == -(MBEDTLS_ERR_OID_NOT_FOUND) ) 754 mbedtls_snprintf( buf, buflen, "OID - OID is not found" ); 755 if( use_ret == -(MBEDTLS_ERR_OID_BUF_TOO_SMALL) ) 756 mbedtls_snprintf( buf, buflen, "OID - output buffer is too small" ); 757 #endif /* MBEDTLS_OID_C */ 758 759 #if defined(MBEDTLS_PADLOCK_C) 760 if( use_ret == -(MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED) ) 761 mbedtls_snprintf( buf, buflen, "PADLOCK - Input data should be aligned" ); 762 #endif /* MBEDTLS_PADLOCK_C */ 763 764 #if defined(MBEDTLS_RIPEMD160_C) 765 if( use_ret == -(MBEDTLS_ERR_RIPEMD160_HW_ACCEL_FAILED) ) 766 mbedtls_snprintf( buf, buflen, "RIPEMD160 - RIPEMD160 hardware accelerator failed" ); 767 #endif /* MBEDTLS_RIPEMD160_C */ 768 769 #if defined(MBEDTLS_SHA1_C) 770 if( use_ret == -(MBEDTLS_ERR_SHA1_HW_ACCEL_FAILED) ) 771 mbedtls_snprintf( buf, buflen, "SHA1 - SHA-1 hardware accelerator failed" ); 772 #endif /* MBEDTLS_SHA1_C */ 773 774 #if defined(MBEDTLS_SHA256_C) 775 if( use_ret == -(MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED) ) 776 mbedtls_snprintf( buf, buflen, "SHA256 - SHA-256 hardware accelerator failed" ); 777 #endif /* MBEDTLS_SHA256_C */ 778 779 #if defined(MBEDTLS_SHA512_C) 780 if( use_ret == -(MBEDTLS_ERR_SHA512_HW_ACCEL_FAILED) ) 781 mbedtls_snprintf( buf, buflen, "SHA512 - SHA-512 hardware accelerator failed" ); 782 #endif /* MBEDTLS_SHA512_C */ 783 784 #if defined(MBEDTLS_THREADING_C) 785 if( use_ret == -(MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE) ) 786 mbedtls_snprintf( buf, buflen, "THREADING - The selected feature is not available" ); 787 if( use_ret == -(MBEDTLS_ERR_THREADING_BAD_INPUT_DATA) ) 788 mbedtls_snprintf( buf, buflen, "THREADING - Bad input parameters to function" ); 789 if( use_ret == -(MBEDTLS_ERR_THREADING_MUTEX_ERROR) ) 790 mbedtls_snprintf( buf, buflen, "THREADING - Locking / unlocking / free failed with error code" ); 791 #endif /* MBEDTLS_THREADING_C */ 792 793 #if defined(MBEDTLS_XTEA_C) 794 if( use_ret == -(MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH) ) 795 mbedtls_snprintf( buf, buflen, "XTEA - The data input has an invalid length" ); 796 if( use_ret == -(MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED) ) 797 mbedtls_snprintf( buf, buflen, "XTEA - XTEA hardware accelerator failed" ); 798 #endif /* MBEDTLS_XTEA_C */ 799 // END generated code 800 801 if( strlen( buf ) != 0 ) 802 return; 803 804 mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret ); 805 } 806 807 #else /* MBEDTLS_ERROR_C */ 808 809 #if defined(MBEDTLS_ERROR_STRERROR_DUMMY) 810 811 /* 812 * Provide an non-function in case MBEDTLS_ERROR_C is not defined 813 */ 814 void mbedtls_strerror( int ret, char *buf, size_t buflen ) 815 { 816 ((void) ret); 817 818 if( buflen > 0 ) 819 buf[0] = '\0'; 820 } 821 822 #endif /* MBEDTLS_ERROR_STRERROR_DUMMY */ 823 824 #endif /* MBEDTLS_ERROR_C */ 825