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#include <stdio.h>
#include <Uefi.h>
#include <Library/UefiLib.h>
#include <Library/UefiApplicationEntryPoint.h>
EFI_STATUS
EFIAPI
UefiMain (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS efiStatus;
EFI_BOOT_SERVICES* bs = SystemTable->BootServices;
EFI_GUID sfspGuid = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
EFI_HANDLE* handleBuffer = NULL;
EFI_HANDLE* handleBuffer2 = NULL;
UINTN handleCount = 0;
UINTN handleCount2 = 0;
UINTN handleIndex;
EFI_GUID **ProtocolGuidArray;
UINTN ArrayCount;
UINTN ProtocolIndex;
EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfo;
UINTN OpenInfoIndex;
UINTN OpenInfoCount;
efiStatus = bs->LocateHandleBuffer (
AllHandles,
NULL,
NULL,
&handleCount,
&handleBuffer
);
UINT32 sfspData1 = sfspGuid.Data1;
//Print(L"EFI_STATUS after LocateHandleBuffer: %r\n", efiStatus);
//Print(L"Number of handles found: %d\n", handleCount); // Last time: 182
if (!EFI_ERROR (efiStatus)) {
for (handleIndex = 0; handleIndex < handleCount; handleIndex++) {
//
// Retrieve the list of all the protocols on each handle
//
efiStatus = bs->ProtocolsPerHandle (
handleBuffer[handleIndex],
&ProtocolGuidArray,
&ArrayCount
);
//Print(L"EFI_STATUS after ProtocolsPerHandle: %r\n", efiStatus);
//Print(L"Number of Protocols per Handle: %d\n", ArrayCount);
if (!EFI_ERROR (efiStatus)) {
for (ProtocolIndex = 0; ProtocolIndex < ArrayCount; ProtocolIndex++) {
EFI_GUID *guid = ProtocolGuidArray[ProtocolIndex];
UINT32 Data1;
UINT16 Data2;
UINT32 Data3;
UINT8 Data4[8];
Data1 = guid->Data1;
Data2 = guid->Data2;
Data3 = guid->Data3;
for (int i = 0; i < 8; i++) {
Data4[i] = guid->Data4[i];
}
// TODO compare the other values
if (Data1 == sfspData1) {
Print(L"GUID: %x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x\n", Data1, Data2, Data3, Data4[0], Data4[1],
Data4[2], Data4[3], Data4[4], Data4[5], Data4[6], Data4[7]);
Print(L"handleIndex: %d\n", handleIndex);
Print(L"ProtocolIndex: %d\n", ProtocolIndex);
//
// Retrieve the protocol instance for each protocol
//
efiStatus = bs->OpenProtocol (
handleBuffer[handleIndex],
ProtocolGuidArray[ProtocolIndex],
NULL,
ImageHandle,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
//
// Retrieve the list of agents that have opened each protocol
//
efiStatus = bs->OpenProtocolInformation (
handleBuffer[handleIndex],
ProtocolGuidArray[ProtocolIndex],
&OpenInfo,
&OpenInfoCount
);
}
}
}
if (!EFI_ERROR (efiStatus)) {
for (OpenInfoIndex=0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {
//
// HandleBuffer[handleIndex] is the handle
// ProtocolGuidArray[ProtocolIndex] is the protocol GUID
// Instance is the protocol instance for the protocol
// OpenInfo[OpenInfoIndex] is an agent that has opened a protocol
//
}
/*if (OpenInfo != NULL) { // TODO Why is it crashing when using FreePool?
bs->FreePool(OpenInfo);
Print(L"EFI_STATUS after FreePool(OpenInfo): %r\n", efiStatus);
}*/
}
/*if (ProtocolGuidArray != NULL) {
bs->FreePool(ProtocolGuidArray);
Print(L"EFI_STATUS after FreePool(ProtocolGuidArray): %r\n", efiStatus);
}*/
}
/*if (handleBuffer != NULL) {
efiStatus = bs->FreePool(handleBuffer);
Print(L"EFI_STATUS after FreePool(handleBuffer): %r\n", efiStatus);
}*/
}
Print(L"sfps: %x\n", sfspData1);
efiStatus = bs->LocateHandleBuffer(ByProtocol,
&sfspGuid,
NULL,
&handleCount2,
&handleBuffer2);
Print(L"Handle count: %d\n", handleCount2);
for (int index = 0; index < (int)handleCount; ++ index)
{
//EFI_SIMPLE_FILE_SYSTEM_PROTOCOL* fs = NULL;
/*efiStatus = bs->HandleProtocol( // TODO Should use OpenProtocol() in new implementations
handles[index],
&sfspGuid,
(void**)&fs
);*/
/*Print(L"Status after HandleProtocol: %r\n", efiStatus);
Print(L"Volume %d found\n", index);
Print(L"fs pointer: %p\n", fs);
EFI_FILE_PROTOCOL* root = NULL;
efiStatus = fs->OpenVolume(fs, &root);
Print(L"Status after open volume: %r\n", efiStatus);
EFI_GUID fsiGuid = EFI_FILE_SYSTEM_INFO_ID;
UINTN bufSize = 0;
VOID* buffer = NULL;*/
/*efiStatus = root->GetInfo(
root,
&fsiGuid,
&bufSize,
&buffer);
Print(L"Status: %r\n", efiStatus);
Print(L"Required buffer size: %d\n", bufSize );
efiStatus = bs->AllocatePool(EfiLoaderData, (UINTN) (bufSize) , (void **)&buffer);
efiStatus = root->GetInfo(
root,
&fsiGuid,
&bufSize,
&buffer);*/
/*
Print(L"Status: %r\n", efiStatus);
EFI_FILE_SYSTEM_INFO* fhgf = buffer;
Print(L"buffer pointer %p\n", buffer);
Print(L"fhgf pointer %p\n", fhgf);
Print(L"VolumeLabel: %s\n", fhgf->VolumeLabel);
Print(L"Size: %d\n", fhgf->Size);
Print(L"ReadOnly: %d\n", fhgf->ReadOnly);
Print(L"VolumeSize: %d\n", fhgf->VolumeSize);
Print(L"FreeSpace: %d\n", fhgf->FreeSpace);
Print(L"BlockSize: %d\n", fhgf->BlockSize);
Print(L"Number of handle found %d\n", (index + 1));
efiStatus = bs->FreePool((void **)&buffer);
Print(L"efiStatus after FreePool: %r\n", efiStatus);*/
}
/*
...
EFI_FILE_PROTOCOL* token = NULL;
efiStatus = root->Open(
root,
&token,
L"myfolder\\token.bin",
EFI_FILE_MODE_READ,
EFI_FILE_READ_ONLY | EFI_FILE_HIDDEN | EFI_FILE_SYSTEM);*/
/*
EFI_FILE_OPEN Open;
EFI_FILE_CLOSE Close;
EFI_FILE_DELETE Delete;
EFI_FILE_READ Read;
EFI_FILE_WRITE Write;
EFI_FILE_GET_POSITION GetPosition;
EFI_FILE_SET_POSITION SetPosition;
EFI_FILE_GET_INFO GetInfo;
EFI_FILE_SET_INFO SetInfo;
EFI_FILE_FLUSH Flush;*/
return EFI_SUCCESS;
}
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