error.c 26.8 KB
Newer Older
1 2 3
/*
 *  Error message information
 *
4
 *  Copyright (C) 2006-2012, Brainspark B.V.
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
 *
 *  This file is part of PolarSSL (http://www.polarssl.org)
 *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
 *
 *  All rights reserved.
 *
 *  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.
 */

#include "polarssl/config.h"

#if defined(POLARSSL_ERROR_C)

#if defined(POLARSSL_AES_C)
#include "polarssl/aes.h"
#endif

#if defined(POLARSSL_BASE64_C)
#include "polarssl/base64.h"
#endif

#if defined(POLARSSL_BIGNUM_C)
#include "polarssl/bignum.h"
#endif

42 43 44 45
#if defined(POLARSSL_BLOWFISH_C)
#include "polarssl/blowfish.h"
#endif

46 47 48 49
#if defined(POLARSSL_CAMELLIA_C)
#include "polarssl/camellia.h"
#endif

50 51 52 53
#if defined(POLARSSL_CIPHER_C)
#include "polarssl/cipher.h"
#endif

54 55 56 57
#if defined(POLARSSL_CTR_DRBG_C)
#include "polarssl/ctr_drbg.h"
#endif

58 59 60 61 62 63 64 65
#if defined(POLARSSL_DES_C)
#include "polarssl/des.h"
#endif

#if defined(POLARSSL_DHM_C)
#include "polarssl/dhm.h"
#endif

Paul Bakker's avatar
Paul Bakker committed
66 67 68 69
#if defined(POLARSSL_ECP_C)
#include "polarssl/ecp.h"
#endif

70 71 72 73
#if defined(POLARSSL_ENTROPY_C)
#include "polarssl/entropy.h"
#endif

74 75 76 77
#if defined(POLARSSL_GCM_C)
#include "polarssl/gcm.h"
#endif

78 79 80 81
#if defined(POLARSSL_MD_C)
#include "polarssl/md.h"
#endif

82 83 84 85 86 87 88 89 90 91 92 93
#if defined(POLARSSL_MD2_C)
#include "polarssl/md2.h"
#endif

#if defined(POLARSSL_MD4_C)
#include "polarssl/md4.h"
#endif

#if defined(POLARSSL_MD5_C)
#include "polarssl/md5.h"
#endif

94 95 96 97
#if defined(POLARSSL_NET_C)
#include "polarssl/net.h"
#endif

98 99 100 101
#if defined(POLARSSL_OID_C)
#include "polarssl/oid.h"
#endif

102 103 104 105
#if defined(POLARSSL_PADLOCK_C)
#include "polarssl/padlock.h"
#endif

Paul Bakker's avatar
Paul Bakker committed
106 107 108 109
#if defined(POLARSSL_PBKDF2_C)
#include "polarssl/pbkdf2.h"
#endif

110 111 112 113 114 115 116 117
#if defined(POLARSSL_PEM_C)
#include "polarssl/pem.h"
#endif

#if defined(POLARSSL_RSA_C)
#include "polarssl/rsa.h"
#endif

118 119 120 121 122 123 124 125 126 127 128 129
#if defined(POLARSSL_SHA1_C)
#include "polarssl/sha1.h"
#endif

#if defined(POLARSSL_SHA2_C)
#include "polarssl/sha2.h"
#endif

#if defined(POLARSSL_SHA4_C)
#include "polarssl/sha4.h"
#endif

130
#if defined(POLARSSL_SSL_TLS_C)
131 132 133 134 135 136 137 138 139 140 141 142 143 144
#include "polarssl/ssl.h"
#endif

#if defined(POLARSSL_X509_PARSE_C)
#include "polarssl/x509.h"
#endif

#if defined(POLARSSL_XTEA_C)
#include "polarssl/xtea.h"
#endif


#include <string.h>

145 146 147 148
#if defined _MSC_VER && !defined  snprintf
#define  snprintf  _snprintf
#endif

149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164
void error_strerror( int ret, char *buf, size_t buflen )
{
    size_t len;
    int use_ret;

    memset( buf, 0x00, buflen );
     
    if( ret < 0 )
        ret = -ret;

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

        // High level error codes
        //
165 166 167 168 169 170 171 172 173 174 175 176 177
#if defined(POLARSSL_CIPHER_C)
        if( use_ret == -(POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE) )
            snprintf( buf, buflen, "CIPHER - The selected feature is not available" );
        if( use_ret == -(POLARSSL_ERR_CIPHER_BAD_INPUT_DATA) )
            snprintf( buf, buflen, "CIPHER - Bad input parameters to function" );
        if( use_ret == -(POLARSSL_ERR_CIPHER_ALLOC_FAILED) )
            snprintf( buf, buflen, "CIPHER - Failed to allocate memory" );
        if( use_ret == -(POLARSSL_ERR_CIPHER_INVALID_PADDING) )
            snprintf( buf, buflen, "CIPHER - Input data contains invalid padding and is rejected" );
        if( use_ret == -(POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED) )
            snprintf( buf, buflen, "CIPHER - Decryption of block requires a full block" );
#endif /* POLARSSL_CIPHER_C */

178 179 180 181 182 183 184 185 186 187
#if defined(POLARSSL_DHM_C)
        if( use_ret == -(POLARSSL_ERR_DHM_BAD_INPUT_DATA) )
            snprintf( buf, buflen, "DHM - Bad input parameters to function" );
        if( use_ret == -(POLARSSL_ERR_DHM_READ_PARAMS_FAILED) )
            snprintf( buf, buflen, "DHM - Reading of the DHM parameters failed" );
        if( use_ret == -(POLARSSL_ERR_DHM_MAKE_PARAMS_FAILED) )
            snprintf( buf, buflen, "DHM - Making of the DHM parameters failed" );
        if( use_ret == -(POLARSSL_ERR_DHM_READ_PUBLIC_FAILED) )
            snprintf( buf, buflen, "DHM - Reading of the public values failed" );
        if( use_ret == -(POLARSSL_ERR_DHM_MAKE_PUBLIC_FAILED) )
188
            snprintf( buf, buflen, "DHM - Making of the public value failed" );
189 190 191 192
        if( use_ret == -(POLARSSL_ERR_DHM_CALC_SECRET_FAILED) )
            snprintf( buf, buflen, "DHM - Calculation of the DHM secret failed" );
#endif /* POLARSSL_DHM_C */

Paul Bakker's avatar
Paul Bakker committed
193 194 195
#if defined(POLARSSL_ECP_C)
        if( use_ret == -(POLARSSL_ERR_ECP_BAD_INPUT_DATA) )
            snprintf( buf, buflen, "ECP - Bad input parameters to function" );
196 197
        if( use_ret == -(POLARSSL_ERR_ECP_BUFFER_TOO_SMALL) )
            snprintf( buf, buflen, "ECP - The buffer is too small to write to" );
Paul Bakker's avatar
Paul Bakker committed
198 199 200 201
        if( use_ret == -(POLARSSL_ERR_ECP_GENERIC) )
            snprintf( buf, buflen, "ECP -  Generic ECP error" );
#endif /* POLARSSL_ECP_C */

202 203 204
#if defined(POLARSSL_MD_C)
        if( use_ret == -(POLARSSL_ERR_MD_FEATURE_UNAVAILABLE) )
            snprintf( buf, buflen, "MD - The selected feature is not available" );
205 206 207 208
        if( use_ret == -(POLARSSL_ERR_MD_BAD_INPUT_DATA) )
            snprintf( buf, buflen, "MD - Bad input parameters to function" );
        if( use_ret == -(POLARSSL_ERR_MD_ALLOC_FAILED) )
            snprintf( buf, buflen, "MD - Failed to allocate memory" );
209 210
        if( use_ret == -(POLARSSL_ERR_MD_FILE_IO_ERROR) )
            snprintf( buf, buflen, "MD - Opening or reading of file failed" );
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
#endif /* POLARSSL_MD_C */

#if defined(POLARSSL_PEM_C)
        if( use_ret == -(POLARSSL_ERR_PEM_NO_HEADER_PRESENT) )
            snprintf( buf, buflen, "PEM - No PEM header found" );
        if( use_ret == -(POLARSSL_ERR_PEM_INVALID_DATA) )
            snprintf( buf, buflen, "PEM - PEM string is not as expected" );
        if( use_ret == -(POLARSSL_ERR_PEM_MALLOC_FAILED) )
            snprintf( buf, buflen, "PEM - Failed to allocate memory" );
        if( use_ret == -(POLARSSL_ERR_PEM_INVALID_ENC_IV) )
            snprintf( buf, buflen, "PEM - RSA IV is not in hex-format" );
        if( use_ret == -(POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG) )
            snprintf( buf, buflen, "PEM - Unsupported key encryption algorithm" );
        if( use_ret == -(POLARSSL_ERR_PEM_PASSWORD_REQUIRED) )
            snprintf( buf, buflen, "PEM - Private key password can't be empty" );
        if( use_ret == -(POLARSSL_ERR_PEM_PASSWORD_MISMATCH) )
            snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" );
        if( use_ret == -(POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE) )
            snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" );
#endif /* POLARSSL_PEM_C */

#if defined(POLARSSL_RSA_C)
        if( use_ret == -(POLARSSL_ERR_RSA_BAD_INPUT_DATA) )
            snprintf( buf, buflen, "RSA - Bad input parameters to function" );
        if( use_ret == -(POLARSSL_ERR_RSA_INVALID_PADDING) )
            snprintf( buf, buflen, "RSA - Input data contains invalid padding and is rejected" );
        if( use_ret == -(POLARSSL_ERR_RSA_KEY_GEN_FAILED) )
            snprintf( buf, buflen, "RSA - Something failed during generation of a key" );
        if( use_ret == -(POLARSSL_ERR_RSA_KEY_CHECK_FAILED) )
            snprintf( buf, buflen, "RSA - Key failed to pass the libraries validity check" );
        if( use_ret == -(POLARSSL_ERR_RSA_PUBLIC_FAILED) )
            snprintf( buf, buflen, "RSA - The public key operation failed" );
        if( use_ret == -(POLARSSL_ERR_RSA_PRIVATE_FAILED) )
            snprintf( buf, buflen, "RSA - The private key operation failed" );
        if( use_ret == -(POLARSSL_ERR_RSA_VERIFY_FAILED) )
            snprintf( buf, buflen, "RSA - The PKCS#1 verification failed" );
        if( use_ret == -(POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE) )
            snprintf( buf, buflen, "RSA - The output buffer for decryption is not large enough" );
        if( use_ret == -(POLARSSL_ERR_RSA_RNG_FAILED) )
            snprintf( buf, buflen, "RSA - The random generator failed to generate non-zeros" );
#endif /* POLARSSL_RSA_C */

253
#if defined(POLARSSL_SSL_TLS_C)
254 255 256 257 258 259 260 261
        if( use_ret == -(POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE) )
            snprintf( buf, buflen, "SSL - The requested feature is not available" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_INPUT_DATA) )
            snprintf( buf, buflen, "SSL - Bad input parameters to function" );
        if( use_ret == -(POLARSSL_ERR_SSL_INVALID_MAC) )
            snprintf( buf, buflen, "SSL - Verification of the message MAC failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_INVALID_RECORD) )
            snprintf( buf, buflen, "SSL - An invalid SSL record was received" );
262 263
        if( use_ret == -(POLARSSL_ERR_SSL_CONN_EOF) )
            snprintf( buf, buflen, "SSL - The connection indicated an EOF" );
264 265 266 267 268 269 270 271 272 273 274 275 276
        if( use_ret == -(POLARSSL_ERR_SSL_UNKNOWN_CIPHER) )
            snprintf( buf, buflen, "SSL - An unknown cipher was received" );
        if( use_ret == -(POLARSSL_ERR_SSL_NO_CIPHER_CHOSEN) )
            snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" );
        if( use_ret == -(POLARSSL_ERR_SSL_NO_SESSION_FOUND) )
            snprintf( buf, buflen, "SSL - No session to recover was found" );
        if( use_ret == -(POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE) )
            snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" );
        if( use_ret == -(POLARSSL_ERR_SSL_CERTIFICATE_TOO_LARGE) )
            snprintf( buf, buflen, "SSL - DESCRIPTION MISSING" );
        if( use_ret == -(POLARSSL_ERR_SSL_CERTIFICATE_REQUIRED) )
            snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" );
        if( use_ret == -(POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED) )
277
            snprintf( buf, buflen, "SSL - The own private key or pre-shared key is not set, but needed" );
278 279 280 281 282
        if( use_ret == -(POLARSSL_ERR_SSL_CA_CHAIN_REQUIRED) )
            snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" );
        if( use_ret == -(POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE) )
            snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" );
        if( use_ret == -(POLARSSL_ERR_SSL_FATAL_ALERT_MESSAGE) )
283
        {
284
            snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" );
285 286
            return;
        }
287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304
        if( use_ret == -(POLARSSL_ERR_SSL_PEER_VERIFY_FAILED) )
            snprintf( buf, buflen, "SSL - Verification of our peer failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY) )
            snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO) )
            snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO) )
            snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE) )
            snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) )
            snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) )
            snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) )
            snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) )
            snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" );
305 306 307 308
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP) )
            snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS) )
            snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret" );
309 310 311 312 313 314
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) )
            snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) )
            snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" );
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_FINISHED) )
            snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" );
315 316
        if( use_ret == -(POLARSSL_ERR_SSL_MALLOC_FAILED) )
            snprintf( buf, buflen, "SSL - Memory allocation failed" );
317 318 319 320
        if( use_ret == -(POLARSSL_ERR_SSL_HW_ACCEL_FAILED) )
            snprintf( buf, buflen, "SSL - Hardware acceleration function returned with error" );
        if( use_ret == -(POLARSSL_ERR_SSL_HW_ACCEL_FALLTHROUGH) )
            snprintf( buf, buflen, "SSL - Hardware acceleration function skipped / left alone data" );
321 322
        if( use_ret == -(POLARSSL_ERR_SSL_COMPRESSION_FAILED) )
            snprintf( buf, buflen, "SSL - Processing of the compression / decompression failed" );
323 324
        if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_PROTOCOL_VERSION) )
            snprintf( buf, buflen, "SSL - Handshake protocol not within min/max boundaries" );
325
#endif /* POLARSSL_SSL_TLS_C */
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

#if defined(POLARSSL_X509_PARSE_C)
        if( use_ret == -(POLARSSL_ERR_X509_FEATURE_UNAVAILABLE) )
            snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_PEM) )
            snprintf( buf, buflen, "X509 - The PEM-encoded certificate contains invalid elements, e.g. invalid character" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_FORMAT) )
            snprintf( buf, buflen, "X509 - The certificate format is invalid, e.g. different type expected" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_VERSION) )
            snprintf( buf, buflen, "X509 - The certificate version element is invalid" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_SERIAL) )
            snprintf( buf, buflen, "X509 - The serial tag or value is invalid" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_ALG) )
            snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_NAME) )
            snprintf( buf, buflen, "X509 - The name tag or value is invalid" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_DATE) )
            snprintf( buf, buflen, "X509 - The date tag or value is invalid" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_PUBKEY) )
            snprintf( buf, buflen, "X509 - The pubkey tag or value is invalid (only RSA is supported)" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_SIGNATURE) )
            snprintf( buf, buflen, "X509 - The signature tag or value invalid" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS) )
            snprintf( buf, buflen, "X509 - The extension tag or value is invalid" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_VERSION) )
            snprintf( buf, buflen, "X509 - Certificate or CRL has an unsupported version number" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_SIG_ALG) )
            snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" );
354 355
        if( use_ret == -(POLARSSL_ERR_X509_UNKNOWN_PK_ALG) )
            snprintf( buf, buflen, "X509 - Key algorithm is unsupported (only RSA is supported)" );
356 357 358 359 360 361 362 363
        if( use_ret == -(POLARSSL_ERR_X509_CERT_SIG_MISMATCH) )
            snprintf( buf, buflen, "X509 - Certificate signature algorithms do not match. (see \\c ::x509_cert sig_oid)" );
        if( use_ret == -(POLARSSL_ERR_X509_CERT_VERIFY_FAILED) )
            snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" );
        if( use_ret == -(POLARSSL_ERR_X509_KEY_INVALID_VERSION) )
            snprintf( buf, buflen, "X509 - Unsupported RSA key version" );
        if( use_ret == -(POLARSSL_ERR_X509_KEY_INVALID_FORMAT) )
            snprintf( buf, buflen, "X509 - Invalid RSA key tag or value" );
364 365
        if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_FORMAT) )
            snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" );
366 367 368 369 370 371
        if( use_ret == -(POLARSSL_ERR_X509_INVALID_INPUT) )
            snprintf( buf, buflen, "X509 - Input invalid" );
        if( use_ret == -(POLARSSL_ERR_X509_MALLOC_FAILED) )
            snprintf( buf, buflen, "X509 - Allocation of memory failed" );
        if( use_ret == -(POLARSSL_ERR_X509_FILE_IO_ERROR) )
            snprintf( buf, buflen, "X509 - Read/write of file failed" );
372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407
#endif /* POLARSSL_X509_PARSE_C */

        if( strlen( buf ) == 0 )
            snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
    }

    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;

        snprintf( buf + len, buflen - len, " : " );

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

    // Low level error codes
    //
#if defined(POLARSSL_AES_C)
    if( use_ret == -(POLARSSL_ERR_AES_INVALID_KEY_LENGTH) )
        snprintf( buf, buflen, "AES - Invalid key length" );
    if( use_ret == -(POLARSSL_ERR_AES_INVALID_INPUT_LENGTH) )
        snprintf( buf, buflen, "AES - Invalid data input length" );
#endif /* POLARSSL_AES_C */

408 409 410 411 412 413 414 415 416 417 418
#if defined(POLARSSL_ASN1_PARSE_C)
    if( use_ret == -(POLARSSL_ERR_ASN1_OUT_OF_DATA) )
        snprintf( buf, buflen, "ASN1 - Out of data when parsing an ASN1 data structure" );
    if( use_ret == -(POLARSSL_ERR_ASN1_UNEXPECTED_TAG) )
        snprintf( buf, buflen, "ASN1 - ASN1 tag was of an unexpected value" );
    if( use_ret == -(POLARSSL_ERR_ASN1_INVALID_LENGTH) )
        snprintf( buf, buflen, "ASN1 - Error when trying to determine the length or invalid length" );
    if( use_ret == -(POLARSSL_ERR_ASN1_LENGTH_MISMATCH) )
        snprintf( buf, buflen, "ASN1 - Actual length differs from expected length" );
    if( use_ret == -(POLARSSL_ERR_ASN1_INVALID_DATA) )
        snprintf( buf, buflen, "ASN1 - Data is invalid. (not used)" );
419 420
    if( use_ret == -(POLARSSL_ERR_ASN1_MALLOC_FAILED) )
        snprintf( buf, buflen, "ASN1 - Memory allocation failed" );
421 422
    if( use_ret == -(POLARSSL_ERR_ASN1_BUF_TOO_SMALL) )
        snprintf( buf, buflen, "ASN1 - Buffer too small when writing ASN.1 data structure" );
423 424
#endif /* POLARSSL_ASN1_PARSE_C */

425 426 427 428 429 430 431 432 433 434 435 436 437 438 439
#if defined(POLARSSL_BASE64_C)
    if( use_ret == -(POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL) )
        snprintf( buf, buflen, "BASE64 - Output buffer too small" );
    if( use_ret == -(POLARSSL_ERR_BASE64_INVALID_CHARACTER) )
        snprintf( buf, buflen, "BASE64 - Invalid character in input" );
#endif /* POLARSSL_BASE64_C */

#if defined(POLARSSL_BIGNUM_C)
    if( use_ret == -(POLARSSL_ERR_MPI_FILE_IO_ERROR) )
        snprintf( buf, buflen, "BIGNUM - An error occurred while reading from or writing to a file" );
    if( use_ret == -(POLARSSL_ERR_MPI_BAD_INPUT_DATA) )
        snprintf( buf, buflen, "BIGNUM - Bad input parameters to function" );
    if( use_ret == -(POLARSSL_ERR_MPI_INVALID_CHARACTER) )
        snprintf( buf, buflen, "BIGNUM - There is an invalid character in the digit string" );
    if( use_ret == -(POLARSSL_ERR_MPI_BUFFER_TOO_SMALL) )
440
        snprintf( buf, buflen, "BIGNUM - The buffer is too small to write to" );
441 442 443 444 445 446
    if( use_ret == -(POLARSSL_ERR_MPI_NEGATIVE_VALUE) )
        snprintf( buf, buflen, "BIGNUM - The input arguments are negative or result in illegal output" );
    if( use_ret == -(POLARSSL_ERR_MPI_DIVISION_BY_ZERO) )
        snprintf( buf, buflen, "BIGNUM - The input argument for division is zero, which is not allowed" );
    if( use_ret == -(POLARSSL_ERR_MPI_NOT_ACCEPTABLE) )
        snprintf( buf, buflen, "BIGNUM - The input arguments are not acceptable" );
447 448
    if( use_ret == -(POLARSSL_ERR_MPI_MALLOC_FAILED) )
        snprintf( buf, buflen, "BIGNUM - Memory allocation failed" );
449
#endif /* POLARSSL_BIGNUM_C */
450 451 452 453 454 455 456

#if defined(POLARSSL_BLOWFISH_C)
    if( use_ret == -(POLARSSL_ERR_BLOWFISH_INVALID_KEY_LENGTH) )
        snprintf( buf, buflen, "BLOWFISH - Invalid key length" );
    if( use_ret == -(POLARSSL_ERR_BLOWFISH_INVALID_INPUT_LENGTH) )
        snprintf( buf, buflen, "BLOWFISH - Invalid data input length" );
#endif /* POLARSSL_BLOWFISH_C */
457 458 459 460 461 462 463 464

#if defined(POLARSSL_CAMELLIA_C)
    if( use_ret == -(POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH) )
        snprintf( buf, buflen, "CAMELLIA - Invalid key length" );
    if( use_ret == -(POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH) )
        snprintf( buf, buflen, "CAMELLIA - Invalid data input length" );
#endif /* POLARSSL_CAMELLIA_C */

465 466 467 468 469 470 471
#if defined(POLARSSL_CTR_DRBG_C)
    if( use_ret == -(POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED) )
        snprintf( buf, buflen, "CTR_DRBG - The entropy source failed" );
    if( use_ret == -(POLARSSL_ERR_CTR_DRBG_REQUEST_TOO_BIG) )
        snprintf( buf, buflen, "CTR_DRBG - Too many random requested in single call" );
    if( use_ret == -(POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG) )
        snprintf( buf, buflen, "CTR_DRBG - Input too large (Entropy + additional)" );
472 473
    if( use_ret == -(POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR) )
        snprintf( buf, buflen, "CTR_DRBG - Read/write error in file" );
474 475
#endif /* POLARSSL_CTR_DRBG_C */

476 477 478 479 480
#if defined(POLARSSL_DES_C)
    if( use_ret == -(POLARSSL_ERR_DES_INVALID_INPUT_LENGTH) )
        snprintf( buf, buflen, "DES - The data input has an invalid length" );
#endif /* POLARSSL_DES_C */

481 482 483 484 485
#if defined(POLARSSL_ENTROPY_C)
    if( use_ret == -(POLARSSL_ERR_ENTROPY_SOURCE_FAILED) )
        snprintf( buf, buflen, "ENTROPY - Critical entropy source failure" );
    if( use_ret == -(POLARSSL_ERR_ENTROPY_MAX_SOURCES) )
        snprintf( buf, buflen, "ENTROPY - No more sources can be added" );
486 487
    if( use_ret == -(POLARSSL_ERR_ENTROPY_NO_SOURCES_DEFINED) )
        snprintf( buf, buflen, "ENTROPY - No sources have been added to poll" );
488 489
#endif /* POLARSSL_ENTROPY_C */

490 491 492
#if defined(POLARSSL_GCM_C)
    if( use_ret == -(POLARSSL_ERR_GCM_AUTH_FAILED) )
        snprintf( buf, buflen, "GCM - Authenticated decryption failed" );
Paul Bakker's avatar
Paul Bakker committed
493 494
    if( use_ret == -(POLARSSL_ERR_GCM_BAD_INPUT) )
        snprintf( buf, buflen, "GCM - Bad input parameters to function" );
495 496
#endif /* POLARSSL_GCM_C */

497 498 499 500 501 502 503 504 505 506 507 508 509 510 511
#if defined(POLARSSL_MD2_C)
    if( use_ret == -(POLARSSL_ERR_MD2_FILE_IO_ERROR) )
        snprintf( buf, buflen, "MD2 - Read/write error in file" );
#endif /* POLARSSL_MD2_C */

#if defined(POLARSSL_MD4_C)
    if( use_ret == -(POLARSSL_ERR_MD4_FILE_IO_ERROR) )
        snprintf( buf, buflen, "MD4 - Read/write error in file" );
#endif /* POLARSSL_MD4_C */

#if defined(POLARSSL_MD5_C)
    if( use_ret == -(POLARSSL_ERR_MD5_FILE_IO_ERROR) )
        snprintf( buf, buflen, "MD5 - Read/write error in file" );
#endif /* POLARSSL_MD5_C */

512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530
#if defined(POLARSSL_NET_C)
    if( use_ret == -(POLARSSL_ERR_NET_UNKNOWN_HOST) )
        snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" );
    if( use_ret == -(POLARSSL_ERR_NET_SOCKET_FAILED) )
        snprintf( buf, buflen, "NET - Failed to open a socket" );
    if( use_ret == -(POLARSSL_ERR_NET_CONNECT_FAILED) )
        snprintf( buf, buflen, "NET - The connection to the given server / port failed" );
    if( use_ret == -(POLARSSL_ERR_NET_BIND_FAILED) )
        snprintf( buf, buflen, "NET - Binding of the socket failed" );
    if( use_ret == -(POLARSSL_ERR_NET_LISTEN_FAILED) )
        snprintf( buf, buflen, "NET - Could not listen on the socket" );
    if( use_ret == -(POLARSSL_ERR_NET_ACCEPT_FAILED) )
        snprintf( buf, buflen, "NET - Could not accept the incoming connection" );
    if( use_ret == -(POLARSSL_ERR_NET_RECV_FAILED) )
        snprintf( buf, buflen, "NET - Reading information from the socket failed" );
    if( use_ret == -(POLARSSL_ERR_NET_SEND_FAILED) )
        snprintf( buf, buflen, "NET - Sending information through the socket failed" );
    if( use_ret == -(POLARSSL_ERR_NET_CONN_RESET) )
        snprintf( buf, buflen, "NET - Connection was reset by peer" );
531 532 533 534
    if( use_ret == -(POLARSSL_ERR_NET_WANT_READ) )
        snprintf( buf, buflen, "NET - Connection requires a read call" );
    if( use_ret == -(POLARSSL_ERR_NET_WANT_WRITE) )
        snprintf( buf, buflen, "NET - Connection requires a write call" );
535 536
#endif /* POLARSSL_NET_C */

537 538 539 540 541
#if defined(POLARSSL_OID_C)
    if( use_ret == -(POLARSSL_ERR_OID_NOT_FOUND) )
        snprintf( buf, buflen, "OID - OID is not found" );
#endif /* POLARSSL_OID_C */

542 543 544 545 546
#if defined(POLARSSL_PADLOCK_C)
    if( use_ret == -(POLARSSL_ERR_PADLOCK_DATA_MISALIGNED) )
        snprintf( buf, buflen, "PADLOCK - Input data should be aligned" );
#endif /* POLARSSL_PADLOCK_C */

Paul Bakker's avatar
Paul Bakker committed
547 548 549 550 551
#if defined(POLARSSL_PBKDF2_C)
    if( use_ret == -(POLARSSL_ERR_PBKDF2_BAD_INPUT_DATA) )
        snprintf( buf, buflen, "PBKDF2 - Bad input parameters to function" );
#endif /* POLARSSL_PBKDF2_C */

552 553 554 555 556 557 558 559 560 561 562 563 564 565 566
#if defined(POLARSSL_SHA1_C)
    if( use_ret == -(POLARSSL_ERR_SHA1_FILE_IO_ERROR) )
        snprintf( buf, buflen, "SHA1 - Read/write error in file" );
#endif /* POLARSSL_SHA1_C */

#if defined(POLARSSL_SHA2_C)
    if( use_ret == -(POLARSSL_ERR_SHA2_FILE_IO_ERROR) )
        snprintf( buf, buflen, "SHA2 - Read/write error in file" );
#endif /* POLARSSL_SHA2_C */

#if defined(POLARSSL_SHA4_C)
    if( use_ret == -(POLARSSL_ERR_SHA4_FILE_IO_ERROR) )
        snprintf( buf, buflen, "SHA4 - Read/write error in file" );
#endif /* POLARSSL_SHA4_C */

567 568 569 570 571 572 573 574 575 576 577
#if defined(POLARSSL_XTEA_C)
    if( use_ret == -(POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH) )
        snprintf( buf, buflen, "XTEA - The data input has an invalid length" );
#endif /* POLARSSL_XTEA_C */

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

    snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
}

578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595
#else /* POLARSSL_ERROR_C */

#if defined(POLARSSL_ERROR_STRERROR_DUMMY)

#include <string.h>

/*
 * Provide an non-function in case POLARSSL_ERROR_C is not defined
 */
void error_strerror( int ret, char *buf, size_t buflen )
{
    ((void) ret);

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

#endif /* POLARSSL_ERROR_STRERROR_DUMMY */
596
#endif /* POLARSSL_ERROR_C */