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/** @file -- VarCheckPolicyMmiCommon.h
This header contains communication definitions that are shared between DXE
and the MM component of VarCheckPolicy.
Copyright (c) Microsoft Corporation.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _VAR_CHECK_POLICY_MMI_COMMON_H_
#define _VAR_CHECK_POLICY_MMI_COMMON_H_
#define VAR_CHECK_POLICY_COMM_SIG SIGNATURE_32('V', 'C', 'P', 'C')
#define VAR_CHECK_POLICY_COMM_REVISION 1
#pragma pack(push, 1)
typedef struct _VAR_CHECK_POLICY_COMM_HEADER {
UINT32 Signature;
UINT32 Revision;
UINT32 Command;
EFI_STATUS Result;
} VAR_CHECK_POLICY_COMM_HEADER;
typedef struct _VAR_CHECK_POLICY_COMM_IS_ENABLED_PARAMS {
BOOLEAN State;
} VAR_CHECK_POLICY_COMM_IS_ENABLED_PARAMS;
typedef struct _VAR_CHECK_POLICY_COMM_DUMP_PARAMS {
UINT32 PageRequested;
UINT32 TotalSize;
UINT32 PageSize;
BOOLEAN HasMore;
} VAR_CHECK_POLICY_COMM_DUMP_PARAMS;
typedef union {
VARIABLE_POLICY_ENTRY VariablePolicy;
VARIABLE_LOCK_ON_VAR_STATE_POLICY LockOnVarStatePolicy;
} VAR_CHECK_POLICY_OUTPUT_POLICY_ENTRY;
typedef struct _VAR_CHECK_POLICY_COMM_GET_INFO_PARAMS {
EFI_GUID InputVendorGuid;
UINT32 InputVariableNameSize;
UINT32 OutputVariableNameSize;
VAR_CHECK_POLICY_OUTPUT_POLICY_ENTRY OutputPolicyEntry;
CHAR16 InputVariableName[1];
} VAR_CHECK_POLICY_COMM_GET_INFO_PARAMS;
#pragma pack(pop)
#define VAR_CHECK_POLICY_COMM_GET_INFO_PARAMS_END \
(OFFSET_OF(VAR_CHECK_POLICY_COMM_GET_INFO_PARAMS, InputVariableName))
// Make sure that we will hold at least the headers.
#define VAR_CHECK_POLICY_MM_COMM_BUFFER_SIZE MAX((OFFSET_OF(EFI_MM_COMMUNICATE_HEADER, Data) + sizeof (VAR_CHECK_POLICY_COMM_HEADER) + EFI_PAGES_TO_SIZE(1)), EFI_PAGES_TO_SIZE(4))
#define VAR_CHECK_POLICY_MM_DUMP_BUFFER_SIZE (VAR_CHECK_POLICY_MM_COMM_BUFFER_SIZE - \
(OFFSET_OF(EFI_MM_COMMUNICATE_HEADER, Data) + \
sizeof(VAR_CHECK_POLICY_COMM_HEADER) + \
sizeof(VAR_CHECK_POLICY_COMM_DUMP_PARAMS)))
#define VAR_CHECK_POLICY_MM_GET_INFO_BUFFER_SIZE (VAR_CHECK_POLICY_MM_COMM_BUFFER_SIZE - \
(OFFSET_OF(EFI_MM_COMMUNICATE_HEADER, Data) + \
sizeof(VAR_CHECK_POLICY_COMM_HEADER) + \
OFFSET_OF(VAR_CHECK_POLICY_COMM_GET_INFO_PARAMS, InputVariableName)))
STATIC_ASSERT (
VAR_CHECK_POLICY_MM_DUMP_BUFFER_SIZE < VAR_CHECK_POLICY_MM_COMM_BUFFER_SIZE,
"an integer underflow may have occurred calculating VAR_CHECK_POLICY_MM_DUMP_BUFFER_SIZE"
);
STATIC_ASSERT (
VAR_CHECK_POLICY_MM_GET_INFO_BUFFER_SIZE < VAR_CHECK_POLICY_MM_COMM_BUFFER_SIZE,
"an integer underflow may have occurred calculating VAR_CHECK_POLICY_MM_GET_INFO_BUFFER_SIZE"
);
#define VAR_CHECK_POLICY_COMMAND_DISABLE 0x0001
#define VAR_CHECK_POLICY_COMMAND_IS_ENABLED 0x0002
#define VAR_CHECK_POLICY_COMMAND_REGISTER 0x0003
#define VAR_CHECK_POLICY_COMMAND_DUMP 0x0004
#define VAR_CHECK_POLICY_COMMAND_LOCK 0x0005
#define VAR_CHECK_POLICY_COMMAND_GET_INFO 0x0006
#define VAR_CHECK_POLICY_COMMAND_GET_LOCK_VAR_STATE_INFO 0x0007
#endif // _VAR_CHECK_POLICY_MMI_COMMON_H_
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