[edk2-devel] [PATCH v4 7/7] CryptoPkg/BaseCryptLib: Make HMAC_CTX size backward compatible
Xiaoyu lu
xiaoyux.lu at intel.com
Thu May 16 07:54:58 UTC 2019
Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=1089
OpenSSL internally redefines the size of HMAC_CTX at
crypto/hmac/hmac_lcl.h(OpenSSL commit e0810e35).
Ref: https://github.com/openssl/openssl/pull/4338
We should not use it directly and should remove relevant
functions(Hmac*GetContextSize).
Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=1792
But for compatiblility, temporarily change these definition
of HMAC_*_CTX_SIZE.
Cc: Jian J Wang <jian.j.wang at intel.com>
Cc: Ting Ye <ting.ye at intel.com>
Signed-off-by: Xiaoyu Lu <xiaoyux.lu at intel.com>
Reviewed-by: Laszlo Ersek <lersek at redhat.com>
---
CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacMd5.c | 8 ++++++--
CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c | 9 +++++++--
CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c | 8 ++++++--
3 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacMd5.c b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacMd5.c
index 3134806797f8..19e9fbeae66f 100644
--- a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacMd5.c
+++ b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacMd5.c
@@ -9,8 +9,12 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include "InternalCryptLib.h"
#include <openssl/hmac.h>
-#define HMAC_MD5_CTX_SIZE sizeof(void *) * 4 + sizeof(unsigned int) + \
- sizeof(unsigned char) * HMAC_MAX_MD_CBLOCK
+//
+// NOTE: OpenSSL redefines the size of HMAC_CTX at crypto/hmac/hmac_lcl.h
+// #define HMAC_MAX_MD_CBLOCK_SIZE 144
+//
+#define HMAC_MD5_CTX_SIZE (sizeof(void *) * 4 + sizeof(unsigned int) + \
+ sizeof(unsigned char) * 144)
/**
Retrieves the size, in bytes, of the context buffer required for HMAC-MD5 operations.
diff --git a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c
index bbe3df4d4f70..7d7df9640e7f 100644
--- a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c
+++ b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c
@@ -9,8 +9,13 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include "InternalCryptLib.h"
#include <openssl/hmac.h>
-#define HMAC_SHA1_CTX_SIZE sizeof(void *) * 4 + sizeof(unsigned int) + \
- sizeof(unsigned char) * HMAC_MAX_MD_CBLOCK
+//
+// NOTE: OpenSSL redefines the size of HMAC_CTX at crypto/hmac/hmac_lcl.h
+// #define HMAC_MAX_MD_CBLOCK_SIZE 144
+//
+//
+#define HMAC_SHA1_CTX_SIZE (sizeof(void *) * 4 + sizeof(unsigned int) + \
+ sizeof(unsigned char) * 144)
/**
Retrieves the size, in bytes, of the context buffer required for HMAC-SHA1 operations.
diff --git a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c
index ac9084fa850d..f24443e74552 100644
--- a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c
+++ b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256.c
@@ -9,8 +9,12 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include "InternalCryptLib.h"
#include <openssl/hmac.h>
-#define HMAC_SHA256_CTX_SIZE sizeof(void *) * 4 + sizeof(unsigned int) + \
- sizeof(unsigned char) * HMAC_MAX_MD_CBLOCK
+//
+// NOTE: OpenSSL redefines the size of HMAC_CTX at crypto/hmac/hmac_lcl.h
+// #define HMAC_MAX_MD_CBLOCK_SIZE 144
+//
+#define HMAC_SHA256_CTX_SIZE (sizeof(void *) * 4 + sizeof(unsigned int) + \
+ sizeof(unsigned char) * 144)
/**
Retrieves the size, in bytes, of the context buffer required for HMAC-SHA256 operations.
--
2.7.4
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#40768): https://edk2.groups.io/g/devel/message/40768
Mute This Topic: https://groups.io/mt/31638512/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-
More information about the edk2-devel-archive
mailing list