diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/MdeModulePkg/Include/Library/SecurityManagementLib.h')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdeModulePkg/Include/Library/SecurityManagementLib.h | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Include/Library/SecurityManagementLib.h b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Include/Library/SecurityManagementLib.h new file mode 100644 index 00000000..1afc490f --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Include/Library/SecurityManagementLib.h @@ -0,0 +1,270 @@ +/** @file + This library class defines a set of interfaces to abstract the policy of + security measurement by managing the different security measurement services. + The library instances can be implemented according to the different security policy. + +Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR> +SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef __SECURITY_MANAGEMENT_LIB_H__ +#define __SECURITY_MANAGEMENT_LIB_H__ + +// +// Authentication Operation defintions for User Identity (UID), Measured and Secure boot. +// +#define EFI_AUTH_OPERATION_NONE 0x00 +#define EFI_AUTH_OPERATION_VERIFY_IMAGE 0x01 +#define EFI_AUTH_OPERATION_DEFER_IMAGE_LOAD 0x02 +#define EFI_AUTH_OPERATION_MEASURE_IMAGE 0x04 +#define EFI_AUTH_OPERATION_CONNECT_POLICY 0x08 +// +// Authentication State Operation will check the authentication status of a file. +// +#define EFI_AUTH_OPERATION_AUTHENTICATION_STATE 0x10 + +/// +/// Image buffer is required by the security handler. +/// +#define EFI_AUTH_OPERATION_IMAGE_REQUIRED 0x80000000 + +/** + The security handler is used to abstract platform-specific policy + from the DXE core response to an attempt to use a file that returns a + given status for the authentication check from the section extraction protocol. + + The possible responses in a given SAP implementation may include locking + flash upon failure to authenticate, attestation logging for all signed drivers, + and other exception operations. The File parameter allows for possible logging + within the SAP of the driver. + + If File is NULL, then EFI_INVALID_PARAMETER is returned. + + If the file specified by File with an authentication status specified by + AuthenticationStatus is safe for the DXE Core to use, then EFI_SUCCESS is returned. + + If the file specified by File with an authentication status specified by + AuthenticationStatus is not safe for the DXE Core to use under any circumstances, + then EFI_ACCESS_DENIED is returned. + + If the file specified by File with an authentication status specified by + AuthenticationStatus is not safe for the DXE Core to use at the time, but it + might be possible to use it at a future time, then EFI_SECURITY_VIOLATION is + returned. + + FileBuffer will be NULL and FileSize will be 0 if the handler being called + did not set EFI_AUTH_OPERATION_IMAGE_REQUIRED when it was registered. + + @param[in] AuthenticationStatus + The authentication status returned from the security + measurement services for the input file. + @param[in] File The pointer to the device path of the file that is + being dispatched. This will optionally be used for logging. + @param[in] FileBuffer The file buffer matches the input file device path. + @param[in] FileSize The size of File buffer matches the input file device path. + + @retval EFI_SUCCESS The file specified by File did authenticate, and the + platform policy dictates that the DXE Core may use File. + @retval EFI_INVALID_PARAMETER The file is NULL. + @retval EFI_SECURITY_VIOLATION The file specified by File did not authenticate, and + the platform policy dictates that File should be placed + in the untrusted state. A file may be promoted from + the untrusted to the trusted state at a future time + with a call to the Trust() DXE Service. + @retval EFI_ACCESS_DENIED The file specified by File did not authenticate, and + the platform policy dictates that File should not be + used for any purpose. + +**/ +typedef +EFI_STATUS +(EFIAPI *SECURITY_FILE_AUTHENTICATION_STATE_HANDLER)( + IN OUT UINT32 AuthenticationStatus, + IN CONST EFI_DEVICE_PATH_PROTOCOL *File, + IN VOID *FileBuffer, + IN UINTN FileSize + ); + +/** + Register security measurement handler with its operation type. Different + handlers with the same operation can all be registered. + + If SecurityHandler is NULL, then ASSERT(). + If no enough resources available to register new handler, then ASSERT(). + If AuthenticationOperation is not recongnized, then ASSERT(). + If the previous register handler can't be executed before the later register handler, then ASSERT(). + + @param[in] SecurityHandler The security measurement service handler to be registered. + @param[in] AuthenticationOperation Theoperation type is specified for the registered handler. + + @retval EFI_SUCCESS The handlers were registered successfully. +**/ +EFI_STATUS +EFIAPI +RegisterSecurityHandler ( + IN SECURITY_FILE_AUTHENTICATION_STATE_HANDLER SecurityHandler, + IN UINT32 AuthenticationOperation + ); + +/** + Execute registered handlers until one returns an error and that error is returned. + If none of the handlers return an error, then EFI_SUCCESS is returned. + + Before exectue handler, get the image buffer by file device path if a handler + requires the image file. And return the image buffer to each handler when exectue handler. + + The handlers are executed in same order to their registered order. + + @param[in] AuthenticationStatus + This is the authentication type returned from the Section + Extraction protocol. See the Section Extraction Protocol + Specification for details on this type. + @param[in] FilePath This is a pointer to the device path of the file that is + being dispatched. This will optionally be used for logging. + + @retval EFI_SUCCESS The file specified by File authenticated when more + than one security handler services were registered, + or the file did not authenticate when no security + handler service was registered. And the platform policy + dictates that the DXE Core may use File. + @retval EFI_INVALID_PARAMETER File is NULL. + @retval EFI_SECURITY_VIOLATION The file specified by File did not authenticate, and + the platform policy dictates that File should be placed + in the untrusted state. A file may be promoted from + the untrusted to the trusted state at a future time + with a call to the Trust() DXE Service. + @retval EFI_ACCESS_DENIED The file specified by File did not authenticate, and + the platform policy dictates that File should not be + used for any purpose. +**/ +EFI_STATUS +EFIAPI +ExecuteSecurityHandlers ( + IN UINT32 AuthenticationStatus, + IN CONST EFI_DEVICE_PATH_PROTOCOL *FilePath + ); + +/** + The security handler is used to abstracts security-specific functions from the DXE + Foundation of UEFI Image Verification, Trusted Computing Group (TCG) measured boot, + User Identity policy for image loading and consoles, and for purposes of + handling GUIDed section encapsulations. + + @param[in] AuthenticationStatus + The authentication status for the input file. + @param[in] File The pointer to the device path of the file that is + being dispatched. This will optionally be used for logging. + @param[in] FileBuffer A pointer to the buffer with the UEFI file image + @param[in] FileSize The size of File buffer. + @param[in] BootPolicy A boot policy that was used to call LoadImage() UEFI service. + + @retval EFI_SUCCESS The file specified by DevicePath and non-NULL + FileBuffer did authenticate, and the platform policy dictates + that the DXE Foundation may use the file. + @retval EFI_SUCCESS The device path specified by NULL device path DevicePath + and non-NULL FileBuffer did authenticate, and the platform + policy dictates that the DXE Foundation may execute the image in + FileBuffer. + @retval EFI_SUCCESS FileBuffer is NULL and current user has permission to start + UEFI device drivers on the device path specified by DevicePath. + @retval EFI_SECURITY_VIOLATION The file specified by DevicePath and FileBuffer did not + authenticate, and the platform policy dictates that the file should be + placed in the untrusted state. The image has been added to the file + execution table. + @retval EFI_ACCESS_DENIED The file specified by File and FileBuffer did not + authenticate, and the platform policy dictates that the DXE + Foundation may not use File. + @retval EFI_SECURITY_VIOLATION FileBuffer is NULL and the user has no + permission to start UEFI device drivers on the device path specified + by DevicePath. + @retval EFI_SECURITY_VIOLATION FileBuffer is not NULL and the user has no permission to load + drivers from the device path specified by DevicePath. The + image has been added into the list of the deferred images. +**/ +typedef +EFI_STATUS +(EFIAPI *SECURITY2_FILE_AUTHENTICATION_HANDLER) ( + IN UINT32 AuthenticationStatus, + IN CONST EFI_DEVICE_PATH_PROTOCOL *File, + IN VOID *FileBuffer, + IN UINTN FileSize, + IN BOOLEAN BootPolicy + ); + +/** + Register security measurement handler with its operation type. Different + handlers with the same operation can all be registered. + + If SecurityHandler is NULL, then ASSERT(). + If no enough resources available to register new handler, then ASSERT(). + If AuthenticationOperation is not recongnized, then ASSERT(). + If AuthenticationOperation is EFI_AUTH_OPERATION_NONE, then ASSERT(). + If the previous register handler can't be executed before the later register handler, then ASSERT(). + + @param[in] Security2Handler The security measurement service handler to be registered. + @param[in] AuthenticationOperation The operation type is specified for the registered handler. + + @retval EFI_SUCCESS The handlers were registered successfully. +**/ +EFI_STATUS +EFIAPI +RegisterSecurity2Handler ( + IN SECURITY2_FILE_AUTHENTICATION_HANDLER Security2Handler, + IN UINT32 AuthenticationOperation + ); + +/** + Execute registered handlers based on input AuthenticationOperation until + one returns an error and that error is returned. + + If none of the handlers return an error, then EFI_SUCCESS is returned. + The handlers those satisfy AuthenticationOperation will only be executed. + The handlers are executed in same order to their registered order. + + @param[in] AuthenticationOperation + The operation type specifies which handlers will be executed. + @param[in] AuthenticationStatus + The authentication status for the input file. + @param[in] File This is a pointer to the device path of the file that is + being dispatched. This will optionally be used for logging. + @param[in] FileBuffer A pointer to the buffer with the UEFI file image + @param[in] FileSize The size of File buffer. + @param[in] BootPolicy A boot policy that was used to call LoadImage() UEFI service. + + @retval EFI_SUCCESS The file specified by DevicePath and non-NULL + FileBuffer did authenticate, and the platform policy dictates + that the DXE Foundation may use the file. + @retval EFI_SUCCESS The device path specified by NULL device path DevicePath + and non-NULL FileBuffer did authenticate, and the platform + policy dictates that the DXE Foundation may execute the image in + FileBuffer. + @retval EFI_SUCCESS FileBuffer is NULL and current user has permission to start + UEFI device drivers on the device path specified by DevicePath. + @retval EFI_SECURITY_VIOLATION The file specified by DevicePath and FileBuffer did not + authenticate, and the platform policy dictates that the file should be + placed in the untrusted state. The image has been added to the file + execution table. + @retval EFI_ACCESS_DENIED The file specified by File and FileBuffer did not + authenticate, and the platform policy dictates that the DXE + Foundation may not use File. + @retval EFI_SECURITY_VIOLATION FileBuffer is NULL and the user has no + permission to start UEFI device drivers on the device path specified + by DevicePath. + @retval EFI_SECURITY_VIOLATION FileBuffer is not NULL and the user has no permission to load + drivers from the device path specified by DevicePath. The + image has been added into the list of the deferred images. + @retval EFI_INVALID_PARAMETER File and FileBuffer are both NULL. +**/ +EFI_STATUS +EFIAPI +ExecuteSecurity2Handlers ( + IN UINT32 AuthenticationOperation, + IN UINT32 AuthenticationStatus, + IN CONST EFI_DEVICE_PATH_PROTOCOL *File, OPTIONAL + IN VOID *FileBuffer, + IN UINTN FileSize, + IN BOOLEAN BootPolicy + ); + +#endif |