/** @file
DXE capsule report related function.
Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <PiDxe.h>
#include <Protocol/FirmwareManagement.h>
#include <Protocol/VariableLock.h>
#include <Guid/CapsuleReport.h>
#include <Guid/FmpCapsule.h>
#include <Guid/CapsuleVendor.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiLib.h>
#include <Library/PcdLib.h>
#include <Library/HobLib.h>
#include <Library/PrintLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/DevicePathLib.h>
#include <Library/CapsuleLib.h>
#include <IndustryStandard/WindowsUxCapsule.h>
/**
Get current capsule last variable index.
@return Current capsule last variable index.
@retval -1 No current capsule last variable.
**/
INTN
GetCurrentCapsuleLastIndex (
VOID
)
{
UINTN Size;
CHAR16 CapsuleLastStr[sizeof("Capsule####")];
EFI_STATUS Status;
UINT16 CurrentIndex;
Size = sizeof(L"Capsule####") - sizeof(CHAR16); // no zero terminator
Status = gRT->GetVariable(
L"CapsuleLast",
&gEfiCapsuleReportGuid,
NULL,
&Size,
CapsuleLastStr
);
if (EFI_ERROR(Status)) {
return -1;
}
CurrentIndex = (UINT16)StrHexToUintn(&CapsuleLastStr[sizeof("Capsule") - 1]);
return CurrentIndex;
}
/**
Get a new capsule status variable index.
@return A new capsule status variable index.
@retval 0 No new capsule status variable index. Rolling over.
**/
INTN
GetNewCapsuleResultIndex (
VOID
)
{
INTN CurrentIndex;
CurrentIndex = GetCurrentCapsuleLastIndex();
if (CurrentIndex >= PcdGet16(PcdCapsuleMax)) {
DEBUG((DEBUG_INFO, " CapsuleResult variable Rolling Over!\n"));
return 0;
}
return CurrentIndex + 1;
}
/**
Write a new capsule status variable.
@param[in] CapsuleResult The capsule status variable
@param[in] CapsuleResultSize The size of the capsule stauts variable in bytes
@retval EFI_SUCCESS The capsule status variable is recorded.
@retval EFI_OUT_OF_RESOURCES No resource to record the capsule status variable.
**/
EFI_STATUS
WriteNewCapsuleResultVariable (
IN VOID *CapsuleResult,
IN UINTN CapsuleResultSize
)
{
INTN CapsuleResultIndex;
CHAR16 CapsuleResultStr[sizeof("Capsule####")];
UINTN Size;
EFI_STATUS Status;
CapsuleResultIndex = GetNewCapsuleResultIndex();
DEBUG((DEBUG_INFO, "New CapsuleResultIndex - 0x%x\n", CapsuleResultIndex));
UnicodeSPrint(
CapsuleResultStr,
sizeof(CapsuleResultStr),
L"Capsule%04x",
CapsuleResultIndex
);
Status = gRT->SetVariable(
CapsuleResultStr,
&gEfiCapsuleReportGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
CapsuleResultSize,
CapsuleResult
);
if (!EFI_ERROR(Status)) {
Size = sizeof(L"Capsule####") - sizeof(CHAR16); // no zero terminator
DEBUG((DEBUG_INFO, "Set CapsuleLast - %s\n", CapsuleResultStr));
Status = gRT->SetVariable(
L"CapsuleLast",
&gEfiCapsuleReportGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
Size,
CapsuleResultStr
);
}
return Status;
}
/**
Record capsule status variable and to local cache.
@param[in] CapsuleHeader The capsule image header
@param[in] CapsuleStatus The capsule process stauts
@retval EFI_SUCCESS The capsule status variable is recorded.
@retval EFI_OUT_OF_RESOURCES No resource to record the capsule status variable.
**/
EFI_STATUS
RecordCapsuleStatusVariable (
IN EFI_CAPSULE_HEADER *CapsuleHeader,
IN EFI_STATUS CapsuleStatus
)
{
EFI_CAPSULE_RESULT_VARIABLE_HEADER CapsuleResultVariable;
EFI_STATUS Status;
CapsuleResultVariable.VariableTotalSize = sizeof(CapsuleResultVariable);
CapsuleResultVariable.Reserved = 0;
CopyGuid (&CapsuleResultVariable.CapsuleGuid, &CapsuleHeader->CapsuleGuid);
ZeroMem(&CapsuleResultVariable.CapsuleProcessed, sizeof(CapsuleResultVariable.CapsuleProcessed));
gRT->GetTime(&CapsuleResultVariable.CapsuleProcessed, NULL);
CapsuleResultVariable.CapsuleStatus = CapsuleStatus;
Status = EFI_SUCCESS;
if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {
Status = WriteNewCapsuleResultVariable(&CapsuleResultVariable, sizeof(CapsuleResultVariable));
}
return Status;
}
/**
Record FMP capsule status variable and to local cache.
@param[in] CapsuleHeader The capsule image header
@param[in] CapsuleStatus The capsule process stauts
@param[in] PayloadIndex FMP payload index
@param[in] ImageHeader FMP image header
@param[in] FmpDevicePath DevicePath associated with the FMP producer
@retval EFI_SUCCESS The capsule status variable is recorded.
@retval EFI_OUT_OF_RESOURCES No resource to record the capsule status variable.
**/
EFI_STATUS
RecordFmpCapsuleStatusVariable (
IN EFI_CAPSULE_HEADER *CapsuleHeader,
IN EFI_STATUS CapsuleStatus,
IN UINTN PayloadIndex,
IN EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER *ImageHeader,
IN EFI_DEVICE_PATH_PROTOCOL *FmpDevicePath OPTIONAL
)
{
EFI_CAPSULE_RESULT_VARIABLE_HEADER *CapsuleResultVariableHeader;
EFI_CAPSULE_RESULT_VARIABLE_FMP *CapsuleResultVariableFmp;
EFI_STATUS Status;
UINT8 *CapsuleResultVariable;
UINTN CapsuleResultVariableSize;
CHAR16 *DevicePathStr;
UINTN DevicePathStrSize;
DevicePathStr = NULL;
if (FmpDevicePath != NULL) {
DevicePathStr = ConvertDevicePathToText (FmpDevicePath, FALSE, FALSE);
}
if (DevicePathStr != NULL) {
DevicePathStrSize = StrSize(DevicePathStr);
} else {
DevicePathStrSize = sizeof(CHAR16);
}
//
// Allocate zero CHAR16 for CapsuleFileName.
//
CapsuleResultVariableSize = sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER) + sizeof(EFI_CAPSULE_RESULT_VARIABLE_FMP) + sizeof(CHAR16) + DevicePathStrSize;
CapsuleResultVariable = AllocateZeroPool (CapsuleResultVariableSize);
if (CapsuleResultVariable == NULL) {
return EFI_OUT_OF_RESOURCES;
}
CapsuleResultVariableHeader = (VOID *)CapsuleResultVariable;
CapsuleResultVariableHeader->VariableTotalSize = (UINT32)CapsuleResultVariableSize;
CapsuleResultVariableHeader->Reserved = 0;
CopyGuid(&CapsuleResultVariableHeader->CapsuleGuid, &CapsuleHeader->CapsuleGuid);
ZeroMem(&CapsuleResultVariableHeader->CapsuleProcessed, sizeof(CapsuleResultVariableHeader->CapsuleProcessed));
gRT->GetTime(&CapsuleResultVariableHeader->CapsuleProcessed, NULL);
CapsuleResultVariableHeader->CapsuleStatus = CapsuleStatus;
CapsuleResultVariableFmp = (VOID *)(CapsuleResultVariable + sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER));
CapsuleResultVariableFmp->Version = 0x1;
CapsuleResultVariableFmp->PayloadIndex = (UINT8)PayloadIndex;
CapsuleResultVariableFmp->UpdateImageIndex = ImageHeader->UpdateImageIndex;
CopyGuid (&CapsuleResultVariableFmp->UpdateImageTypeId, &ImageHeader->UpdateImageTypeId);
if (DevicePathStr != NULL) {
CopyMem ((UINT8 *)CapsuleResultVariableFmp + sizeof(EFI_CAPSULE_RESULT_VARIABLE_FMP) + sizeof(CHAR16), DevicePathStr, DevicePathStrSize);
FreePool (DevicePathStr);
DevicePathStr = NULL;
}
Status = EFI_SUCCESS;
if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {
Status = WriteNewCapsuleResultVariable(CapsuleResultVariable, CapsuleResultVariableSize);
}
FreePool (CapsuleResultVariable);
return Status;
}
/**
Initialize CapsuleMax variables.
**/
VOID
InitCapsuleMaxVariable (
VOID
)
{
EFI_STATUS Status;
UINTN Size;
CHAR16 CapsuleMaxStr[sizeof("Capsule####")];
EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;
UnicodeSPrint(
CapsuleMaxStr,
sizeof(CapsuleMaxStr),
L"Capsule%04x",
PcdGet16(PcdCapsuleMax)
);
Size = sizeof(L"Capsule####") - sizeof(CHAR16); // no zero terminator
Status = gRT->SetVariable(
L"CapsuleMax",
&gEfiCapsuleReportGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
Size,
CapsuleMaxStr
);
if (!EFI_ERROR(Status)) {
// Lock it per UEFI spec.
Status = gBS->LocateProtocol(&gEdkiiVariableLockProtocolGuid, NULL, (VOID **)&VariableLock);
if (!EFI_ERROR(Status)) {
Status = VariableLock->RequestToLock(VariableLock, L"CapsuleMax", &gEfiCapsuleReportGuid);
ASSERT_EFI_ERROR(Status);
}
}
}
/**
Initialize CapsuleLast variables.
**/
VOID
InitCapsuleLastVariable (
VOID
)
{
EFI_STATUS Status;
EFI_BOOT_MODE BootMode;
EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;
VOID *CapsuleResult;
UINTN Size;
CHAR16 CapsuleLastStr[sizeof("Capsule####")];
BootMode = GetBootModeHob();
if (BootMode == BOOT_ON_FLASH_UPDATE) {
Status = gRT->SetVariable(
L"CapsuleLast",
&gEfiCapsuleReportGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0,
NULL
);
// Do not lock it because it will be updated later.
} else {
//
// Check if OS/APP cleared L"Capsule####"
//
ZeroMem(CapsuleLastStr, sizeof(CapsuleLastStr));
Size = sizeof(L"Capsule####") - sizeof(CHAR16); // no zero terminator
Status = gRT->GetVariable(
L"CapsuleLast",
&gEfiCapsuleReportGuid,
NULL,
&Size,
CapsuleLastStr
);
if (!EFI_ERROR(Status)) {
//
// L"CapsuleLast" is got, check if data is there.
//
Status = GetVariable2 (
CapsuleLastStr,
&gEfiCapsuleReportGuid,
(VOID **) &CapsuleResult,
NULL
);
if (EFI_ERROR(Status)) {
//
// If no data, delete L"CapsuleLast"
//
Status = gRT->SetVariable(
L"CapsuleLast",
&gEfiCapsuleReportGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0,
NULL
);
}
}
// Lock it in normal boot path per UEFI spec.
Status = gBS->LocateProtocol(&gEdkiiVariableLockProtocolGuid, NULL, (VOID **)&VariableLock);
if (!EFI_ERROR(Status)) {
Status = VariableLock->RequestToLock(VariableLock, L"CapsuleLast", &gEfiCapsuleReportGuid);
ASSERT_EFI_ERROR(Status);
}
}
}
/**
Initialize capsule update variables.
**/
VOID
InitCapsuleUpdateVariable (
VOID
)
{
EFI_STATUS Status;
UINTN Index;
CHAR16 CapsuleVarName[30];
CHAR16 *TempVarName;
//
// Clear all the capsule variables CapsuleUpdateData, CapsuleUpdateData1, CapsuleUpdateData2...
// as early as possible which will avoid the next time boot after the capsule update
// will still into the capsule loop
//
StrCpyS (CapsuleVarName, sizeof(CapsuleVarName)/sizeof(CapsuleVarName[0]), EFI_CAPSULE_VARIABLE_NAME);
TempVarName = CapsuleVarName + StrLen (CapsuleVarName);
Index = 0;
while (TRUE) {
if (Index > 0) {
UnicodeValueToString (TempVarName, 0, Index, 0);
}
Status = gRT->SetVariable (
CapsuleVarName,
&gEfiCapsuleVendorGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,
0,
(VOID *)NULL
);
if (EFI_ERROR (Status)) {
//
// There is no capsule variables, quit
//
break;
}
Index++;
}
}
/**
Initialize capsule related variables.
**/
VOID
InitCapsuleVariable (
VOID
)
{
InitCapsuleUpdateVariable();
InitCapsuleMaxVariable();
InitCapsuleLastVariable();
//
// No need to clear L"Capsule####", because OS/APP should refer L"CapsuleLast"
// to check status and delete them.
//
}