mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-19 15:37:40 +01:00
271 lines
14 KiB
C
271 lines
14 KiB
C
/** @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,
|
|
IN VOID *FileBuffer,
|
|
IN UINTN FileSize,
|
|
IN BOOLEAN BootPolicy
|
|
);
|
|
|
|
#endif
|