From 0ff4e0b8242e05d32be20145c4b4baa94864bb19 Mon Sep 17 00:00:00 2001
From: Ron Eldor <Ron.Eldor@arm.com>
Date: Wed, 29 Aug 2018 18:53:20 +0300
Subject: [PATCH] Add platform error codes

Add error codes for the platform module, to be used by
the setup \ terminate API.
---
 include/mbedtls/error.h    |  1 +
 include/mbedtls/platform.h |  3 +++
 library/error.c            | 11 +++++++++++
 scripts/generate_errors.pl |  2 +-
 4 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/include/mbedtls/error.h b/include/mbedtls/error.h
index 6b82d4fbbe..95415dc722 100644
--- a/include/mbedtls/error.h
+++ b/include/mbedtls/error.h
@@ -80,6 +80,7 @@
  * CHACHA20  3                  0x0051-0x0055
  * POLY1305  3                  0x0057-0x005B
  * CHACHAPOLY 2 0x0054-0x0056
+ * PLATFORM  2 0x0080-0x0082
  *
  * High-level module nr (3 bits - 0x0...-0x7...)
  * Name      ID  Nr of Errors
diff --git a/include/mbedtls/platform.h b/include/mbedtls/platform.h
index a40a64f9c6..a1cd689f39 100644
--- a/include/mbedtls/platform.h
+++ b/include/mbedtls/platform.h
@@ -43,6 +43,9 @@
 #include "platform_time.h"
 #endif
 
+#define MBEDTLS_ERR_PLATFORM_INVALID_DATA    -0x0080 /**< Bad input parameters to the platform function. */
+#define MBEDTLS_ERR_PLATFORM_HW_FAILED       -0x0082 /**< Hardware platform function failed. */
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/library/error.c b/library/error.c
index 774244b454..f34a6effa2 100644
--- a/library/error.c
+++ b/library/error.c
@@ -165,6 +165,10 @@
 #include "mbedtls/pkcs5.h"
 #endif
 
+#if defined(MBEDTLS_PLATFORM_C)
+#include "mbedtls/platform.h"
+#endif
+
 #if defined(MBEDTLS_POLY1305_C)
 #include "mbedtls/poly1305.h"
 #endif
@@ -821,6 +825,13 @@ void mbedtls_strerror( int ret, char *buf, size_t buflen )
         mbedtls_snprintf( buf, buflen, "PADLOCK - Input data should be aligned" );
 #endif /* MBEDTLS_PADLOCK_C */
 
+#if defined(MBEDTLS_PLATFORM_C)
+    if( use_ret == -(MBEDTLS_ERR_PLATFORM_INVALID_DATA) )
+        mbedtls_snprintf( buf, buflen, "PLATFORM - Bad input parameters to the platform function" );
+    if( use_ret == -(MBEDTLS_ERR_PLATFORM_HW_FAILED) )
+        mbedtls_snprintf( buf, buflen, "PLATFORM - Hardware platform function failed" );
+#endif /* MBEDTLS_PLATFORM_C */
+
 #if defined(MBEDTLS_POLY1305_C)
     if( use_ret == -(MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA) )
         mbedtls_snprintf( buf, buflen, "POLY1305 - Invalid input parameter(s)" );
diff --git a/scripts/generate_errors.pl b/scripts/generate_errors.pl
index ac171ed4a2..0c1f7e16ec 100755
--- a/scripts/generate_errors.pl
+++ b/scripts/generate_errors.pl
@@ -32,7 +32,7 @@ my $error_format_file = $data_dir.'/error.fmt';
 my @low_level_modules = qw( AES ARC4 ARIA ASN1 BASE64 BIGNUM BLOWFISH
                             CAMELLIA CCM CHACHA20 CHACHAPOLY CMAC CTR_DRBG DES
                             ENTROPY GCM HKDF HMAC_DRBG MD2 MD4 MD5
-                            NET OID PADLOCK PBKDF2 POLY1305 RIPEMD160
+                            NET OID PADLOCK PBKDF2 PLATFORM POLY1305 RIPEMD160
                             SHA1 SHA256 SHA512 THREADING XTEA );
 my @high_level_modules = qw( CIPHER DHM ECP MD
                              PEM PK PKCS12 PKCS5