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review.trustedfirmware.org / OP-TEE / optee_os / 8bfc3de4e3aa12fed64575b37b5d0d9108b56e20 / . / lib / libmbedtls / mbedtls / library / error.c
blob: b1ee413a9bdc1c4c7489606c16598d956cc54663 [file] [log] [blame]
Edison Aic6672fd2018-02-28 15:01:47 +0800[diff] [blame]1// SPDX-License-Identifier: Apache-2.0
Jens Wiklander817466c2018-05-22 13:49:31 +0200[diff] [blame]2/*
3 * Error message information
4 *
5 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
Jens Wiklander817466c2018-05-22 13:49:31 +0200[diff] [blame]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
153void 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 */
699void 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 */