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mbedtls/library/error.c
Manuel Pégourié-Gonnard e2e25e7427 DTLS: avoid dropping too many records 
When the peer retransmits a flight with many record in the same datagram, and
we already saw one of the records in that datagram, we used to drop the whole
datagram, resulting in interoperability failure (spurious handshake timeouts,
due to ignoring record retransmitted by the peer) with some implementations
(issues with Chrome were reported).

So in those cases, we want to only drop the current record, and look at the
following records (if any) in the same datagram. OTOH, this is not something
we always want to do, as sometime the header of the current record is not
reliable enough.

This commit introduces a new return code for ssl_parse_header() that allows to
distinguish if we should drop only the current record or the whole datagram,
and uses it in mbedtls_ssl_read_record()

fixes #345
2015-12-03 16:13:17 +01:00

700 lines
36 KiB
C
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/*
* Error message information
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_ERROR_C) || defined(MBEDTLS_ERROR_STRERROR_DUMMY)
#include "mbedtls/error.h"
#include <string.h>
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#define mbedtls_snprintf snprintf
#endif
#if defined(MBEDTLS_ERROR_C)
#include <stdio.h>
#if defined(MBEDTLS_AES_C)
#include "mbedtls/aes.h"
#endif
#if defined(MBEDTLS_BASE64_C)
#include "mbedtls/base64.h"
#endif
#if defined(MBEDTLS_BIGNUM_C)
#include "mbedtls/bignum.h"
#endif
#if defined(MBEDTLS_BLOWFISH_C)
#include "mbedtls/blowfish.h"
#endif
#if defined(MBEDTLS_CAMELLIA_C)
#include "mbedtls/camellia.h"
#endif
#if defined(MBEDTLS_CCM_C)
#include "mbedtls/ccm.h"
#endif
#if defined(MBEDTLS_CIPHER_C)
#include "mbedtls/cipher.h"
#endif
#if defined(MBEDTLS_CTR_DRBG_C)
#include "mbedtls/ctr_drbg.h"
#endif
#if defined(MBEDTLS_DES_C)
#include "mbedtls/des.h"
#endif
#if defined(MBEDTLS_DHM_C)
#include "mbedtls/dhm.h"
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#endif
#if defined(MBEDTLS_ENTROPY_C)
#include "mbedtls/entropy.h"
#endif
#if defined(MBEDTLS_GCM_C)
#include "mbedtls/gcm.h"
#endif
#if defined(MBEDTLS_HMAC_DRBG_C)
#include "mbedtls/hmac_drbg.h"
#endif
#if defined(MBEDTLS_MD_C)
#include "mbedtls/md.h"
#endif
#if defined(MBEDTLS_NET_C)
#include "mbedtls/net.h"
#endif
#if defined(MBEDTLS_OID_C)
#include "mbedtls/oid.h"
#endif
#if defined(MBEDTLS_PADLOCK_C)
#include "mbedtls/padlock.h"
#endif
#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PK_C)
#include "mbedtls/pk.h"
#endif
#if defined(MBEDTLS_PKCS12_C)
#include "mbedtls/pkcs12.h"
#endif
#if defined(MBEDTLS_PKCS5_C)
#include "mbedtls/pkcs5.h"
#endif
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#endif
#if defined(MBEDTLS_SSL_TLS_C)
#include "mbedtls/ssl.h"
#endif
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#endif
#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
#include "mbedtls/x509.h"
#endif
#if defined(MBEDTLS_XTEA_C)
#include "mbedtls/xtea.h"
#endif
void mbedtls_strerror( int ret, char *buf, size_t buflen )
{
size_t len;
int use_ret;
if( buflen == 0 )
return;
memset( buf, 0x00, buflen );
if( ret < 0 )
ret = -ret;
if( ret & 0xFF80 )
{
use_ret = ret & 0xFF80;
// High level error codes
//
// BEGIN generated code
#if defined(MBEDTLS_CIPHER_C)
if( use_ret == -(MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "CIPHER - The selected feature is not available" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "CIPHER - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "CIPHER - Failed to allocate memory" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_INVALID_PADDING) )
mbedtls_snprintf( buf, buflen, "CIPHER - Input data contains invalid padding and is rejected" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED) )
mbedtls_snprintf( buf, buflen, "CIPHER - Decryption of block requires a full block" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_AUTH_FAILED) )
mbedtls_snprintf( buf, buflen, "CIPHER - Authentication failed (for AEAD modes)" );
#endif /* MBEDTLS_CIPHER_C */
#if defined(MBEDTLS_DHM_C)
if( use_ret == -(MBEDTLS_ERR_DHM_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "DHM - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_DHM_READ_PARAMS_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Reading of the DHM parameters failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Making of the DHM parameters failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Reading of the public values failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Making of the public value failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_CALC_SECRET_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Calculation of the DHM secret failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "DHM - The ASN.1 data is not formatted correctly" );
if( use_ret == -(MBEDTLS_ERR_DHM_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Allocation of memory failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "DHM - Read/write of file failed" );
#endif /* MBEDTLS_DHM_C */
#if defined(MBEDTLS_ECP_C)
if( use_ret == -(MBEDTLS_ERR_ECP_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "ECP - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "ECP - The buffer is too small to write to" );
if( use_ret == -(MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "ECP - Requested curve not available" );
if( use_ret == -(MBEDTLS_ERR_ECP_VERIFY_FAILED) )
mbedtls_snprintf( buf, buflen, "ECP - The signature is not valid" );
if( use_ret == -(MBEDTLS_ERR_ECP_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "ECP - Memory allocation failed" );
if( use_ret == -(MBEDTLS_ERR_ECP_RANDOM_FAILED) )
mbedtls_snprintf( buf, buflen, "ECP - Generation of random value, such as (ephemeral) key, failed" );
if( use_ret == -(MBEDTLS_ERR_ECP_INVALID_KEY) )
mbedtls_snprintf( buf, buflen, "ECP - Invalid private or public key" );
if( use_ret == -(MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH) )
mbedtls_snprintf( buf, buflen, "ECP - Signature is valid but shorter than the user-supplied length" );
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_MD_C)
if( use_ret == -(MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "MD - The selected feature is not available" );
if( use_ret == -(MBEDTLS_ERR_MD_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "MD - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_MD_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "MD - Failed to allocate memory" );
if( use_ret == -(MBEDTLS_ERR_MD_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "MD - Opening or reading of file failed" );
#endif /* MBEDTLS_MD_C */
#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
if( use_ret == -(MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT) )
mbedtls_snprintf( buf, buflen, "PEM - No PEM header or footer found" );
if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_DATA) )
mbedtls_snprintf( buf, buflen, "PEM - PEM string is not as expected" );
if( use_ret == -(MBEDTLS_ERR_PEM_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "PEM - Failed to allocate memory" );
if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_ENC_IV) )
mbedtls_snprintf( buf, buflen, "PEM - RSA IV is not in hex-format" );
if( use_ret == -(MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG) )
mbedtls_snprintf( buf, buflen, "PEM - Unsupported key encryption algorithm" );
if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_REQUIRED) )
mbedtls_snprintf( buf, buflen, "PEM - Private key password can't be empty" );
if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" );
if( use_ret == -(MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" );
if( use_ret == -(MBEDTLS_ERR_PEM_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "PEM - Bad input parameters to function" );
#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */
#if defined(MBEDTLS_PK_C)
if( use_ret == -(MBEDTLS_ERR_PK_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "PK - Memory allocation failed" );
if( use_ret == -(MBEDTLS_ERR_PK_TYPE_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PK - Type mismatch, eg attempt to encrypt with an ECDSA key" );
if( use_ret == -(MBEDTLS_ERR_PK_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "PK - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_PK_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "PK - Read/write of file failed" );
if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_VERSION) )
mbedtls_snprintf( buf, buflen, "PK - Unsupported key version" );
if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "PK - Invalid key tag or value" );
if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_PK_ALG) )
mbedtls_snprintf( buf, buflen, "PK - Key algorithm is unsupported (only RSA and EC are supported)" );
if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_REQUIRED) )
mbedtls_snprintf( buf, buflen, "PK - Private key password can't be empty" );
if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PK - Given private key password does not allow for correct decryption" );
if( use_ret == -(MBEDTLS_ERR_PK_INVALID_PUBKEY) )
mbedtls_snprintf( buf, buflen, "PK - The pubkey tag or value is invalid (only RSA and EC are supported)" );
if( use_ret == -(MBEDTLS_ERR_PK_INVALID_ALG) )
mbedtls_snprintf( buf, buflen, "PK - The algorithm tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE) )
mbedtls_snprintf( buf, buflen, "PK - Elliptic curve is unsupported (only NIST curves are supported)" );
if( use_ret == -(MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "PK - Unavailable feature, e.g. RSA disabled for RSA key" );
if( use_ret == -(MBEDTLS_ERR_PK_SIG_LEN_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PK - The signature is valid but its length is less than expected" );
#endif /* MBEDTLS_PK_C */
#if defined(MBEDTLS_PKCS12_C)
if( use_ret == -(MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "PKCS12 - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "PKCS12 - Feature not available, e.g. unsupported encryption scheme" );
if( use_ret == -(MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "PKCS12 - PBE ASN.1 data not as expected" );
if( use_ret == -(MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PKCS12 - Given private key password does not allow for correct decryption" );
#endif /* MBEDTLS_PKCS12_C */
#if defined(MBEDTLS_PKCS5_C)
if( use_ret == -(MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "PKCS5 - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_PKCS5_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "PKCS5 - Unexpected ASN.1 data" );
if( use_ret == -(MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "PKCS5 - Requested encryption or digest alg not available" );
if( use_ret == -(MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PKCS5 - Given private key password does not allow for correct decryption" );
#endif /* MBEDTLS_PKCS5_C */
#if defined(MBEDTLS_RSA_C)
if( use_ret == -(MBEDTLS_ERR_RSA_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "RSA - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_RSA_INVALID_PADDING) )
mbedtls_snprintf( buf, buflen, "RSA - Input data contains invalid padding and is rejected" );
if( use_ret == -(MBEDTLS_ERR_RSA_KEY_GEN_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - Something failed during generation of a key" );
if( use_ret == -(MBEDTLS_ERR_RSA_KEY_CHECK_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - Key failed to pass the library's validity check" );
if( use_ret == -(MBEDTLS_ERR_RSA_PUBLIC_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - The public key operation failed" );
if( use_ret == -(MBEDTLS_ERR_RSA_PRIVATE_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - The private key operation failed" );
if( use_ret == -(MBEDTLS_ERR_RSA_VERIFY_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - The PKCS#1 verification failed" );
if( use_ret == -(MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE) )
mbedtls_snprintf( buf, buflen, "RSA - The output buffer for decryption is not large enough" );
if( use_ret == -(MBEDTLS_ERR_RSA_RNG_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - The random generator failed to generate non-zeros" );
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_SSL_TLS_C)
if( use_ret == -(MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "SSL - The requested feature is not available" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "SSL - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_MAC) )
mbedtls_snprintf( buf, buflen, "SSL - Verification of the message MAC failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_RECORD) )
mbedtls_snprintf( buf, buflen, "SSL - An invalid SSL record was received" );
if( use_ret == -(MBEDTLS_ERR_SSL_CONN_EOF) )
mbedtls_snprintf( buf, buflen, "SSL - The connection indicated an EOF" );
if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_CIPHER) )
mbedtls_snprintf( buf, buflen, "SSL - An unknown cipher was received" );
if( use_ret == -(MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN) )
mbedtls_snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" );
if( use_ret == -(MBEDTLS_ERR_SSL_NO_RNG) )
mbedtls_snprintf( buf, buflen, "SSL - No RNG was provided to the SSL module" );
if( use_ret == -(MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE) )
mbedtls_snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" );
if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE) )
mbedtls_snprintf( buf, buflen, "SSL - Our own certificate(s) is/are too large to send in an SSL message" );
if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED) )
mbedtls_snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" );
if( use_ret == -(MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) )
mbedtls_snprintf( buf, buflen, "SSL - The own private key or pre-shared key is not set, but needed" );
if( use_ret == -(MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED) )
mbedtls_snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" );
if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE) )
mbedtls_snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" );
if( use_ret == -(MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE) )
{
mbedtls_snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" );
return;
}
if( use_ret == -(MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED) )
mbedtls_snprintf( buf, buflen, "SSL - Verification of our peer failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) )
mbedtls_snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_FINISHED) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "SSL - Memory allocation failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function returned with error" );
if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH) )
mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function skipped / left alone data" );
if( use_ret == -(MBEDTLS_ERR_SSL_COMPRESSION_FAILED) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the compression / decompression failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION) )
mbedtls_snprintf( buf, buflen, "SSL - Handshake protocol not within min/max boundaries" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the NewSessionTicket handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) )
mbedtls_snprintf( buf, buflen, "SSL - Session ticket has expired" );
if( use_ret == -(MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH) )
mbedtls_snprintf( buf, buflen, "SSL - Public key type mismatch (eg, asked for RSA key exchange and presented EC key)" );
if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) )
mbedtls_snprintf( buf, buflen, "SSL - Unknown identity received (eg, PSK identity)" );
if( use_ret == -(MBEDTLS_ERR_SSL_INTERNAL_ERROR) )
mbedtls_snprintf( buf, buflen, "SSL - Internal error (eg, unexpected failure in lower-level module)" );
if( use_ret == -(MBEDTLS_ERR_SSL_COUNTER_WRAPPING) )
mbedtls_snprintf( buf, buflen, "SSL - A counter would wrap (eg, too many messages exchanged)" );
if( use_ret == -(MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO) )
mbedtls_snprintf( buf, buflen, "SSL - Unexpected message at ServerHello in renegotiation" );
if( use_ret == -(MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) )
mbedtls_snprintf( buf, buflen, "SSL - DTLS client must retry for hello verification" );
if( use_ret == -(MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "SSL - A buffer is too small to receive or write a message" );
if( use_ret == -(MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE) )
mbedtls_snprintf( buf, buflen, "SSL - None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages)" );
if( use_ret == -(MBEDTLS_ERR_SSL_WANT_READ) )
mbedtls_snprintf( buf, buflen, "SSL - Connection requires a read call" );
if( use_ret == -(MBEDTLS_ERR_SSL_WANT_WRITE) )
mbedtls_snprintf( buf, buflen, "SSL - Connection requires a write call" );
if( use_ret == -(MBEDTLS_ERR_SSL_TIMEOUT) )
mbedtls_snprintf( buf, buflen, "SSL - The operation timed out" );
if( use_ret == -(MBEDTLS_ERR_SSL_CLIENT_RECONNECT) )
mbedtls_snprintf( buf, buflen, "SSL - The client initiated a reconnect from the same port" );
if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_RECORD) )
mbedtls_snprintf( buf, buflen, "SSL - Record header looks valid but is not expected" );
#endif /* MBEDTLS_SSL_TLS_C */
#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
if( use_ret == -(MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" );
if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_OID) )
mbedtls_snprintf( buf, buflen, "X509 - Requested OID is unknown" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR format is invalid, e.g. different type expected" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_VERSION) )
mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR version element is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SERIAL) )
mbedtls_snprintf( buf, buflen, "X509 - The serial tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_ALG) )
mbedtls_snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_NAME) )
mbedtls_snprintf( buf, buflen, "X509 - The name tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_DATE) )
mbedtls_snprintf( buf, buflen, "X509 - The date tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SIGNATURE) )
mbedtls_snprintf( buf, buflen, "X509 - The signature tag or value invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_EXTENSIONS) )
mbedtls_snprintf( buf, buflen, "X509 - The extension tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_VERSION) )
mbedtls_snprintf( buf, buflen, "X509 - CRT/CRL/CSR has an unsupported version number" );
if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG) )
mbedtls_snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" );
if( use_ret == -(MBEDTLS_ERR_X509_SIG_MISMATCH) )
mbedtls_snprintf( buf, buflen, "X509 - Signature algorithms do not match. (see \\c ::mbedtls_x509_crt sig_oid)" );
if( use_ret == -(MBEDTLS_ERR_X509_CERT_VERIFY_FAILED) )
mbedtls_snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" );
if( use_ret == -(MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT) )
mbedtls_snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" );
if( use_ret == -(MBEDTLS_ERR_X509_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "X509 - Input invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "X509 - Allocation of memory failed" );
if( use_ret == -(MBEDTLS_ERR_X509_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "X509 - Read/write of file failed" );
if( use_ret == -(MBEDTLS_ERR_X509_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "X509 - Destination buffer is too small" );
#endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */
// END generated code
if( strlen( buf ) == 0 )
mbedtls_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;
mbedtls_snprintf( buf + len, buflen - len, " : " );
buf += len + 3;
buflen -= len + 3;
}
// Low level error codes
//
// BEGIN generated code
#if defined(MBEDTLS_AES_C)
if( use_ret == -(MBEDTLS_ERR_AES_INVALID_KEY_LENGTH) )
mbedtls_snprintf( buf, buflen, "AES - Invalid key length" );
if( use_ret == -(MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "AES - Invalid data input length" );
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_ASN1_PARSE_C)
if( use_ret == -(MBEDTLS_ERR_ASN1_OUT_OF_DATA) )
mbedtls_snprintf( buf, buflen, "ASN1 - Out of data when parsing an ASN1 data structure" );
if( use_ret == -(MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) )
mbedtls_snprintf( buf, buflen, "ASN1 - ASN1 tag was of an unexpected value" );
if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_LENGTH) )
mbedtls_snprintf( buf, buflen, "ASN1 - Error when trying to determine the length or invalid length" );
if( use_ret == -(MBEDTLS_ERR_ASN1_LENGTH_MISMATCH) )
mbedtls_snprintf( buf, buflen, "ASN1 - Actual length differs from expected length" );
if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_DATA) )
mbedtls_snprintf( buf, buflen, "ASN1 - Data is invalid. (not used)" );
if( use_ret == -(MBEDTLS_ERR_ASN1_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "ASN1 - Memory allocation failed" );
if( use_ret == -(MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "ASN1 - Buffer too small when writing ASN.1 data structure" );
#endif /* MBEDTLS_ASN1_PARSE_C */
#if defined(MBEDTLS_BASE64_C)
if( use_ret == -(MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "BASE64 - Output buffer too small" );
if( use_ret == -(MBEDTLS_ERR_BASE64_INVALID_CHARACTER) )
mbedtls_snprintf( buf, buflen, "BASE64 - Invalid character in input" );
#endif /* MBEDTLS_BASE64_C */
#if defined(MBEDTLS_BIGNUM_C)
if( use_ret == -(MBEDTLS_ERR_MPI_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "BIGNUM - An error occurred while reading from or writing to a file" );
if( use_ret == -(MBEDTLS_ERR_MPI_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "BIGNUM - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_MPI_INVALID_CHARACTER) )
mbedtls_snprintf( buf, buflen, "BIGNUM - There is an invalid character in the digit string" );
if( use_ret == -(MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "BIGNUM - The buffer is too small to write to" );
if( use_ret == -(MBEDTLS_ERR_MPI_NEGATIVE_VALUE) )
mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are negative or result in illegal output" );
if( use_ret == -(MBEDTLS_ERR_MPI_DIVISION_BY_ZERO) )
mbedtls_snprintf( buf, buflen, "BIGNUM - The input argument for division is zero, which is not allowed" );
if( use_ret == -(MBEDTLS_ERR_MPI_NOT_ACCEPTABLE) )
mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are not acceptable" );
if( use_ret == -(MBEDTLS_ERR_MPI_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "BIGNUM - Memory allocation failed" );
#endif /* MBEDTLS_BIGNUM_C */
#if defined(MBEDTLS_BLOWFISH_C)
if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH) )
mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid key length" );
if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid data input length" );
#endif /* MBEDTLS_BLOWFISH_C */
#if defined(MBEDTLS_CAMELLIA_C)
if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH) )
mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid key length" );
if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid data input length" );
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_CCM_C)
if( use_ret == -(MBEDTLS_ERR_CCM_BAD_INPUT) )
mbedtls_snprintf( buf, buflen, "CCM - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_CCM_AUTH_FAILED) )
mbedtls_snprintf( buf, buflen, "CCM - Authenticated decryption failed" );
#endif /* MBEDTLS_CCM_C */
#if defined(MBEDTLS_CTR_DRBG_C)
if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED) )
mbedtls_snprintf( buf, buflen, "CTR_DRBG - The entropy source failed" );
if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG) )
mbedtls_snprintf( buf, buflen, "CTR_DRBG - Too many random requested in single call" );
if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG) )
mbedtls_snprintf( buf, buflen, "CTR_DRBG - Input too large (Entropy + additional)" );
if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "CTR_DRBG - Read/write error in file" );
#endif /* MBEDTLS_CTR_DRBG_C */
#if defined(MBEDTLS_DES_C)
if( use_ret == -(MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "DES - The data input has an invalid length" );
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ENTROPY_C)
if( use_ret == -(MBEDTLS_ERR_ENTROPY_SOURCE_FAILED) )
mbedtls_snprintf( buf, buflen, "ENTROPY - Critical entropy source failure" );
if( use_ret == -(MBEDTLS_ERR_ENTROPY_MAX_SOURCES) )
mbedtls_snprintf( buf, buflen, "ENTROPY - No more sources can be added" );
if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED) )
mbedtls_snprintf( buf, buflen, "ENTROPY - No sources have been added to poll" );
if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE) )
mbedtls_snprintf( buf, buflen, "ENTROPY - No strong sources have been added to poll" );
if( use_ret == -(MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "ENTROPY - Read/write error in file" );
#endif /* MBEDTLS_ENTROPY_C */
#if defined(MBEDTLS_GCM_C)
if( use_ret == -(MBEDTLS_ERR_GCM_AUTH_FAILED) )
mbedtls_snprintf( buf, buflen, "GCM - Authenticated decryption failed" );
if( use_ret == -(MBEDTLS_ERR_GCM_BAD_INPUT) )
mbedtls_snprintf( buf, buflen, "GCM - Bad input parameters to function" );
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_HMAC_DRBG_C)
if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG) )
mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Too many random requested in single call" );
if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG) )
mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Input too large (Entropy + additional)" );
if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Read/write error in file" );
if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED) )
mbedtls_snprintf( buf, buflen, "HMAC_DRBG - The entropy source failed" );
#endif /* MBEDTLS_HMAC_DRBG_C */
#if defined(MBEDTLS_NET_C)
if( use_ret == -(MBEDTLS_ERR_NET_SOCKET_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Failed to open a socket" );
if( use_ret == -(MBEDTLS_ERR_NET_CONNECT_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - The connection to the given server / port failed" );
if( use_ret == -(MBEDTLS_ERR_NET_BIND_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Binding of the socket failed" );
if( use_ret == -(MBEDTLS_ERR_NET_LISTEN_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Could not listen on the socket" );
if( use_ret == -(MBEDTLS_ERR_NET_ACCEPT_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Could not accept the incoming connection" );
if( use_ret == -(MBEDTLS_ERR_NET_RECV_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Reading information from the socket failed" );
if( use_ret == -(MBEDTLS_ERR_NET_SEND_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Sending information through the socket failed" );
if( use_ret == -(MBEDTLS_ERR_NET_CONN_RESET) )
mbedtls_snprintf( buf, buflen, "NET - Connection was reset by peer" );
if( use_ret == -(MBEDTLS_ERR_NET_UNKNOWN_HOST) )
mbedtls_snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" );
if( use_ret == -(MBEDTLS_ERR_NET_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "NET - Buffer is too small to hold the data" );
if( use_ret == -(MBEDTLS_ERR_NET_INVALID_CONTEXT) )
mbedtls_snprintf( buf, buflen, "NET - The context is invalid, eg because it was free()ed" );
#endif /* MBEDTLS_NET_C */
#if defined(MBEDTLS_OID_C)
if( use_ret == -(MBEDTLS_ERR_OID_NOT_FOUND) )
mbedtls_snprintf( buf, buflen, "OID - OID is not found" );
if( use_ret == -(MBEDTLS_ERR_OID_BUF_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "OID - output buffer is too small" );
#endif /* MBEDTLS_OID_C */
#if defined(MBEDTLS_PADLOCK_C)
if( use_ret == -(MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED) )
mbedtls_snprintf( buf, buflen, "PADLOCK - Input data should be aligned" );
#endif /* MBEDTLS_PADLOCK_C */
#if defined(MBEDTLS_THREADING_C)
if( use_ret == -(MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "THREADING - The selected feature is not available" );
if( use_ret == -(MBEDTLS_ERR_THREADING_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "THREADING - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_THREADING_MUTEX_ERROR) )
mbedtls_snprintf( buf, buflen, "THREADING - Locking / unlocking / free failed with error code" );
#endif /* MBEDTLS_THREADING_C */
#if defined(MBEDTLS_XTEA_C)
if( use_ret == -(MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "XTEA - The data input has an invalid length" );
#endif /* MBEDTLS_XTEA_C */
// END generated code
if( strlen( buf ) != 0 )
return;
mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
}
#else /* MBEDTLS_ERROR_C */
#if defined(MBEDTLS_ERROR_STRERROR_DUMMY)
/*
* Provide an non-function in case MBEDTLS_ERROR_C is not defined
*/
void mbedtls_strerror( int ret, char *buf, size_t buflen )
{
((void) ret);
if( buflen > 0 )
buf[0] = '\0';
}
#endif /* MBEDTLS_ERROR_STRERROR_DUMMY */
#endif /* MBEDTLS_ERROR_C */
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