--- /dev/null
+/** @file\r
+ Common operation for Security.\r
+\r
+ Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution. The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php.\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "IpSecCryptIo.h"\r
+//\r
+// Alogrithm's informations for the Encrypt/Decrpt Alogrithm.\r
+//\r
+ENCRYPT_ALGORITHM mIpsecEncryptAlgorithmList[IPSEC_ENCRYPT_ALGORITHM_LIST_SIZE] = {\r
+ {EFI_IPSEC_EALG_NULL, 0, 0, 1, NULL, NULL, NULL, NULL},\r
+ {(UINT8)-1, 0, 0, 0, NULL, NULL, NULL, NULL}\r
+};\r
+//\r
+// Alogrithm's informations for the Authentication algorithm\r
+//\r
+AUTH_ALGORITHM mIpsecAuthAlgorithmList[IPSEC_AUTH_ALGORITHM_LIST_SIZE] = {\r
+ {EFI_IPSEC_AALG_NONE, 0, 0, 0, NULL, NULL, NULL, NULL},\r
+ {EFI_IPSEC_AALG_NULL, 0, 0, 0, NULL, NULL, NULL, NULL},\r
+ {(UINT8)-1, 0, 0, 0, NULL, NULL, NULL, NULL}\r
+};\r
+\r
+\r
+/**\r
+ Get the block size of encrypt alogrithm. The block size is based on the algorithm used.\r
+\r
+ @param[in] AlgorithmId The encrypt algorithm ID.\r
+\r
+ @return The value of block size.\r
+\r
+**/\r
+UINTN\r
+IpSecGetEncryptBlockSize (\r
+ IN UINT8 AlgorithmId\r
+ )\r
+{\r
+ UINT8 Index;\r
+\r
+ for (Index = 0; Index < IPSEC_ENCRYPT_ALGORITHM_LIST_SIZE; Index++) {\r
+ if (AlgorithmId == mIpsecEncryptAlgorithmList[Index].AlgorithmId) {\r
+ //\r
+ // The BlockSize is same with IvSize.\r
+ //\r
+ return mIpsecEncryptAlgorithmList[Index].BlockSize;\r
+ }\r
+ }\r
+\r
+ return (UINTN) -1;\r
+}\r
+\r
+/**\r
+ Get the IV size of encrypt alogrithm. The IV size is based on the algorithm used.\r
+\r
+ @param[in] AlgorithmId The encrypt algorithm ID.\r
+\r
+ @return The value of IV size.\r
+\r
+**/\r
+UINTN\r
+IpSecGetEncryptIvLength (\r
+ IN UINT8 AlgorithmId\r
+ )\r
+{\r
+ UINT8 Index;\r
+\r
+ for (Index = 0; Index < IPSEC_ENCRYPT_ALGORITHM_LIST_SIZE; Index++) {\r
+ if (AlgorithmId == mIpsecEncryptAlgorithmList[Index].AlgorithmId) {\r
+ //\r
+ // The BlockSize is same with IvSize.\r
+ //\r
+ return mIpsecEncryptAlgorithmList[Index].IvLength;\r
+ }\r
+ }\r
+\r
+ return (UINTN) -1;\r
+}\r
+\r
+/**\r
+ Get the ICV size of Authenticaion alogrithm. The ICV size is based on the algorithm used.\r
+\r
+ @param[in] AuthAlgorithmId The Authentication algorithm ID.\r
+\r
+ @return The value of ICV size.\r
+\r
+**/\r
+UINTN\r
+IpSecGetIcvLength (\r
+ IN UINT8 AuthAlgorithmId\r
+ )\r
+{\r
+ UINT8 Index;\r
+ for (Index = 0; Index < IPSEC_AUTH_ALGORITHM_LIST_SIZE; Index++) {\r
+ if (AuthAlgorithmId == mIpsecAuthAlgorithmList[Index].AlgorithmId) {\r
+ return mIpsecAuthAlgorithmList[Index].IcvLength;\r
+ }\r
+ }\r
+ return (UINTN) -1;\r
+}\r
+\r
+/**\r
+ Generate a random data for IV. If the IvSize is zero, not needed to create\r
+ IV and return EFI_SUCCESS.\r
+\r
+ @param[in] IvBuffer The pointer of the IV buffer.\r
+ @param[in] IvSize The IV size.\r
+\r
+ @retval EFI_SUCCESS Create a random data for IV.\r
+\r
+**/\r
+EFI_STATUS\r
+IpSecGenerateIv (\r
+ IN UINT8 *IvBuffer,\r
+ IN UINTN IvSize\r
+ )\r
+{\r
+ if (IvSize != 0) {\r
+ //\r
+ //TODO: return CryptGenerateRandom (IvBuffer, IvSize);\r
+ //\r
+ return EFI_SUCCESS;\r
+ }\r
+ return EFI_SUCCESS;\r
+}\r