mbedtls added

common/mbedtls/error.h

@@ -0,0 +1,124 @@
+/**
+ * \file error.h
+ *
+ * \brief Error to string translation
+ */
+/*
+ *  Copyright (C) 2006-2018, ARM Limited, All Rights Reserved
+ *  SPDX-License-Identifier: GPL-2.0
+ *
+ *  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.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+#ifndef MBEDTLS_ERROR_H
+#define MBEDTLS_ERROR_H
+
+#include <stddef.h>
+
+/**
+ * Error code layout.
+ *
+ * Currently we try to keep all error codes within the negative space of 16
+ * bits signed integers to support all platforms (-0x0001 - -0x7FFF). In
+ * addition we'd like to give two layers of information on the error if
+ * possible.
+ *
+ * For that purpose the error codes are segmented in the following manner:
+ *
+ * 16 bit error code bit-segmentation
+ *
+ * 1 bit  - Unused (sign bit)
+ * 3 bits - High level module ID
+ * 5 bits - Module-dependent error code
+ * 7 bits - Low level module errors
+ *
+ * For historical reasons, low-level error codes are divided in even and odd,
+ * even codes were assigned first, and -1 is reserved for other errors.
+ *
+ * Low-level module errors (0x0002-0x007E, 0x0003-0x007F)
+ *
+ * Module   Nr  Codes assigned
+ * MPI       7  0x0002-0x0010
+ * GCM       3  0x0012-0x0014   0x0013-0x0013
+ * BLOWFISH  3  0x0016-0x0018   0x0017-0x0017
+ * THREADING 3  0x001A-0x001E
+ * AES       5  0x0020-0x0022   0x0021-0x0025
+ * CAMELLIA  3  0x0024-0x0026   0x0027-0x0027
+ * XTEA      2  0x0028-0x0028   0x0029-0x0029
+ * BASE64    2  0x002A-0x002C
+ * OID       1  0x002E-0x002E   0x000B-0x000B
+ * PADLOCK   1  0x0030-0x0030
+ * DES       2  0x0032-0x0032   0x0033-0x0033
+ * CTR_DBRG  4  0x0034-0x003A
+ * ENTROPY   3  0x003C-0x0040   0x003D-0x003F
+ * NET      13  0x0042-0x0052   0x0043-0x0049
+ * ARIA      4  0x0058-0x005E
+ * ASN1      7  0x0060-0x006C
+ * CMAC      1  0x007A-0x007A
+ * PBKDF2    1  0x007C-0x007C
+ * HMAC_DRBG 4                  0x0003-0x0009
+ * CCM       3                  0x000D-0x0011
+ * ARC4      1                  0x0019-0x0019
+ * MD2       1                  0x002B-0x002B
+ * MD4       1                  0x002D-0x002D
+ * MD5       1                  0x002F-0x002F
+ * RIPEMD160 1                  0x0031-0x0031
+ * SHA1      1                  0x0035-0x0035
+ * SHA256    1                  0x0037-0x0037
+ * SHA512    1                  0x0039-0x0039
+ * CHACHA20  3                  0x0051-0x0055
+ * POLY1305  3                  0x0057-0x005B
+ * CHACHAPOLY 2 0x0054-0x0056
+ *
+ * High-level module nr (3 bits - 0x0...-0x7...)
+ * Name      ID  Nr of Errors
+ * PEM       1   9
+ * PKCS#12   1   4 (Started from top)
+ * X509      2   20
+ * PKCS5     2   4 (Started from top)
+ * DHM       3   11
+ * PK        3   15 (Started from top)
+ * RSA       4   11
+ * ECP       4   9 (Started from top)
+ * MD        5   5
+ * HKDF      5   1 (Started from top)
+ * CIPHER    6   8
+ * SSL       6   22 (Started from top)
+ * SSL       7   31
+ *
+ * Module dependent error code (5 bits 0x.00.-0x.F8.)
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Translate a mbed TLS error code into a string representation,
+ *        Result is truncated if necessary and always includes a terminating
+ *        null byte.
+ *
+ * \param errnum    error code
+ * \param buffer    buffer to place representation in
+ * \param buflen    length of the buffer
+ */
+void mbedtls_strerror( int errnum, char *buffer, size_t buflen );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* error.h */