+/**\r
+ Validate if it is valid capsule header\r
+\r
+ This function assumes the caller provided correct CapsuleHeader pointer\r
+ and CapsuleSize.\r
+\r
+ This function validates the fields in EFI_CAPSULE_HEADER.\r
+\r
+ @param[in] CapsuleHeader Points to a capsule header.\r
+ @param[in] CapsuleSize Size of the whole capsule image.\r
+\r
+**/\r
+BOOLEAN\r
+IsValidCapsuleHeader (\r
+ IN EFI_CAPSULE_HEADER *CapsuleHeader,\r
+ IN UINT64 CapsuleSize\r
+ )\r
+{\r
+ if (CapsuleSize < sizeof (EFI_CAPSULE_HEADER)) {\r
+ return FALSE;\r
+ }\r
+ if (CapsuleHeader->CapsuleImageSize != CapsuleSize) {\r
+ return FALSE;\r
+ }\r
+ if (CapsuleHeader->HeaderSize > CapsuleHeader->CapsuleImageSize) {\r
+ return FALSE;\r
+ }\r
+ if (CapsuleHeader->HeaderSize < sizeof (EFI_CAPSULE_HEADER)) {\r
+ return FALSE;\r
+ }\r
+\r
+ return TRUE;\r
+}\r
+\r