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