CloverBootloader/rEFIt_UEFI/Platform/Volume.cpp

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/*
* Volume.cpp
*
* Created on: Apr 21, 2021
* Author: jief
*/
#include "Volume.h"
#include <Platform.h>
#include "../Platform/plist/plist.h"
#include "../Platform/guid.h"
#include "../refit/lib.h"
//Get the UUID of the AppleRaid or CoreStorage volume from the boot helper partition
EFI_STATUS
GetRootUUID (IN REFIT_VOLUME *Volume)
{
EFI_STATUS Status;
UINT8 *PlistBuffer;
UINTN PlistLen;
TagDict* Dict;
const TagStruct* Prop;
CONST CHAR16* SystemPlistR;
CONST CHAR16* SystemPlistP;
CONST CHAR16* SystemPlistS;
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XBool HasRock;
XBool HasPaper;
XBool HasScissors;
Status = EFI_NOT_FOUND;
if (Volume == NULL) {
return EFI_NOT_FOUND;
}
SystemPlistR = L"\\com.apple.boot.R\\Library\\Preferences\\SystemConfiguration\\com.apple.Boot.plist";
if (FileExists (Volume->RootDir, SystemPlistR)) {
HasRock = FileExists (Volume->RootDir, SystemPlistR);
} else {
SystemPlistR = L"\\com.apple.boot.R\\com.apple.Boot.plist";
HasRock = FileExists (Volume->RootDir, SystemPlistR);
}
SystemPlistP = L"\\com.apple.boot.P\\Library\\Preferences\\SystemConfiguration\\com.apple.Boot.plist";
if (FileExists (Volume->RootDir, SystemPlistP)) {
HasPaper = FileExists (Volume->RootDir, SystemPlistP);
} else {
SystemPlistP = L"\\com.apple.boot.P\\com.apple.Boot.plist";
HasPaper = FileExists (Volume->RootDir, SystemPlistP);
}
SystemPlistS = L"\\com.apple.boot.S\\Library\\Preferences\\SystemConfiguration\\com.apple.Boot.plist";
if (FileExists (Volume->RootDir, SystemPlistS)) {
HasScissors = FileExists (Volume->RootDir, SystemPlistS);
} else {
SystemPlistS = L"\\com.apple.boot.S\\com.apple.Boot.plist";
HasScissors = FileExists (Volume->RootDir, SystemPlistS);
}
PlistBuffer = NULL;
// Playing Rock, Paper, Scissors to chose which settings to load.
if (HasRock && HasPaper && HasScissors) {
// Rock wins when all three are around
Status = egLoadFile(Volume->RootDir, SystemPlistR, &PlistBuffer, &PlistLen);
} else if (HasRock && HasPaper) {
// Paper beats rock
Status = egLoadFile(Volume->RootDir, SystemPlistP, &PlistBuffer, &PlistLen);
} else if (HasRock && HasScissors) {
// Rock beats scissors
Status = egLoadFile(Volume->RootDir, SystemPlistR, &PlistBuffer, &PlistLen);
} else if (HasPaper && HasScissors) {
// Scissors beat paper
Status = egLoadFile(Volume->RootDir, SystemPlistS, &PlistBuffer, &PlistLen);
} else if (HasPaper) {
// No match
Status = egLoadFile(Volume->RootDir, SystemPlistP, &PlistBuffer, &PlistLen);
} else if (HasScissors) {
// No match
Status = egLoadFile(Volume->RootDir, SystemPlistS, &PlistBuffer, &PlistLen);
} else {
// Rock wins by default
Status = egLoadFile(Volume->RootDir, SystemPlistR, &PlistBuffer, &PlistLen);
}
if (!EFI_ERROR(Status)) {
Dict = NULL;
if (ParseXML(PlistBuffer, &Dict, 0) != EFI_SUCCESS) {
FreePool(PlistBuffer);
return EFI_NOT_FOUND;
}
Prop = Dict->propertyForKey("Root UUID");
if ( Prop != NULL ) {
if ( !Prop->isString() ) {
MsgLog("ATTENTION : property not string in Root UUID\n");
}else{
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// Status = StrToGuidBE(Prop->getString()->stringValue(), &Volume->RootUUID);
Volume->RootUUID.takeValueFromBE(Prop->getString()->stringValue());
if ( Volume->RootUUID.isNull() ) Status = EFI_UNSUPPORTED;
else Status = EFI_SUCCESS;
}
}
Dict->ReleaseTag();
FreePool(PlistBuffer);
}
return Status;
}