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Improve robustness when scanning PCI Option ROM.

Browse Source 
Signed-off-by: rsun3
Reviewed-by: geekboy15a


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13095 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
rsun3 2012-03-14 03:17:17 +00:00
parent 8a44cd74ec
commit 94020bb40f
9 changed files with 234 additions and 78 deletions
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56
DuetPkg/PciBusNoEnumerationDxe/PciOptionRomSupport.c
View File

@ -1,6 +1,6 @@
/*++
Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2012, 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
@ -155,6 +155,7 @@ Returns:
PCI_DATA_STRUCTURE *RomPcir;
UINT64 RomSize;
UINT64 RomImageSize;
UINT32 LegacyImageLength;
UINT8 *RomInMemory;
UINT8 CodeType;
@ -207,6 +208,7 @@ Returns:
RomBarOffset = RomBar;
retStatus = EFI_NOT_FOUND;
FirstCheck = TRUE;
LegacyImageLength = 0;
do {
PciDevice->PciRootBridgeIo->Mem.Read (
@ -229,6 +231,15 @@ Returns:
FirstCheck = FALSE;
OffsetPcir = RomHeader->PcirOffset;
//
// If the pointer to the PCI Data Structure is invalid, no further images can be located.
// The PCI Data Structure must be DWORD aligned.
//
if (OffsetPcir == 0 ||
(OffsetPcir & 3) != 0 ||
RomImageSize + OffsetPcir + sizeof (PCI_DATA_STRUCTURE) > RomSize) {
break;
}
PciDevice->PciRootBridgeIo->Mem.Read (
PciDevice->PciRootBridgeIo,
EfiPciWidthUint8,
@ -236,8 +247,18 @@ Returns:
sizeof (PCI_DATA_STRUCTURE),
(UINT8 *) RomPcir
);
//
// If a valid signature is not present in the PCI Data Structure, no further images can be located.
//
if (RomPcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
break;
}
if (RomImageSize + RomPcir->ImageLength * 512 > RomSize) {
break;
}
if (RomPcir->CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
CodeType = PCI_CODE_TYPE_PCAT_IMAGE;
LegacyImageLength = ((UINT32)((EFI_LEGACY_EXPANSION_ROM_HEADER *)RomHeader)->Size512) * 512;
}
Indicator = RomPcir->Indicator;
RomImageSize = RomImageSize + RomPcir->ImageLength * 512;
@ -249,7 +270,7 @@ Returns:
// of the legacy length and the PCIR Image Length
//
if (CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
RomImageSize = MAX(RomImageSize, (((EFI_LEGACY_EXPANSION_ROM_HEADER *)RomHeader)->Size512 * 512));
RomImageSize = MAX (RomImageSize, LegacyImageLength);
}
if (RomImageSize > 0) {
@ -399,7 +420,6 @@ Returns:
EFI_HANDLE ImageHandle;
EFI_STATUS Status;
EFI_STATUS retStatus;
BOOLEAN FirstCheck;
BOOLEAN SkipImage;
UINT32 DestinationSize;
UINT32 ScratchSize;
@ -410,6 +430,7 @@ Returns:
EFI_DECOMPRESS_PROTOCOL *Decompress;
EFI_PCI_EXPANSION_ROM_HEADER *EfiRomHeader;
PCI_DATA_STRUCTURE *Pcir;
UINT32 InitializationSize;
Indicator = 0;
@ -419,35 +440,36 @@ Returns:
RomBar = PciDevice->PciIo.RomImage;
RomBarOffset = (UINT8 *) RomBar;
retStatus = EFI_NOT_FOUND;
FirstCheck = TRUE;
if (RomBarOffset == NULL) {
return retStatus;
}
ASSERT (((EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset)->Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE);
do {
EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset;
if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
RomBarOffset = RomBarOffset + 512;
if (FirstCheck) {
break;
} else {
continue;
}
continue;
}
FirstCheck = FALSE;
Pcir = (PCI_DATA_STRUCTURE *) (RomBarOffset + EfiRomHeader->PcirOffset);
ASSERT (Pcir->Signature == PCI_DATA_STRUCTURE_SIGNATURE);
ImageSize = (UINT32) (Pcir->ImageLength * 512);
Indicator = Pcir->Indicator;
if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE)) {
if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&
((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER))) {
if ((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER)) {
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
InitializationSize = EfiRomHeader->InitializationSize * 512;
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
ImageSize = (UINT32) (EfiRomHeader->InitializationSize * 512);
if (InitializationSize <= ImageSize && ImageOffset < InitializationSize) {
ImageBuffer = (VOID *) (RomBarOffset + ImageOffset);
ImageLength = ImageSize - (UINT32)ImageOffset;
ImageLength = InitializationSize - (UINT32)ImageOffset;
DecompressedImageBuffer = NULL;
//

37
DuetPkg/PciBusNoEnumerationDxe/PciRomTable.c
View File

@ -1,6 +1,6 @@
/*++
Copyright (c) 2005 - 2007, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2012, 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
@ -133,6 +133,7 @@ Returns:
VOID *DecompressedImageBuffer;
UINT32 ImageLength;
EFI_DECOMPRESS_PROTOCOL *Decompress;
UINT32 InitializationSize;
RomBar = (VOID *) (UINTN) PciOptionRomDescriptor->RomAddress;
RomSize = (UINTN) PciOptionRomDescriptor->RomLength;
@ -151,24 +152,44 @@ Returns:
EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) (UINTN) RomBarOffset;
if (EfiRomHeader->Signature != 0xaa55) {
if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
return retStatus;
}
//
// If the pointer to the PCI Data Structure is invalid, no further images can be located.
// The PCI Data Structure must be DWORD aligned.
//
if (EfiRomHeader->PcirOffset == 0 ||
(EfiRomHeader->PcirOffset & 3) != 0 ||
RomBarOffset - (UINTN)RomBar + EfiRomHeader->PcirOffset + sizeof (PCI_DATA_STRUCTURE) > RomSize) {
break;
}
Pcir = (PCI_DATA_STRUCTURE *) (UINTN) (RomBarOffset + EfiRomHeader->PcirOffset);
//
// If a valid signature is not present in the PCI Data Structure, no further images can be located.
//
if (Pcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
break;
}
ImageSize = Pcir->ImageLength * 512;
if (RomBarOffset - (UINTN)RomBar + ImageSize > RomSize) {
break;
}
if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) ) {
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&
((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER))) {
if ((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) ) {
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
InitializationSize = EfiRomHeader->InitializationSize * 512;
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
ImageSize = EfiRomHeader->InitializationSize * 512;
if (InitializationSize <= ImageSize && ImageOffset < InitializationSize) {
ImageBuffer = (VOID *) (UINTN) (RomBarOffset + ImageOffset);
ImageLength = ImageSize - ImageOffset;
ImageLength = InitializationSize - ImageOffset;
DecompressedImageBuffer = NULL;
//

14
DuetPkg/PciRootBridgeNoEnumerationDxe/Ia32/PcatIo.c
View File

@ -1,6 +1,6 @@
/*++
Copyright (c) 2005 - 2008, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2012, 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
@ -436,8 +436,10 @@ CheckForRom (
Pcir.ImageLength = 0;
if (EfiRomHeader.Signature == 0xaa55) {
if (EfiRomHeader.Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE &&
EfiRomHeader.PcirOffset != 0 &&
(EfiRomHeader.PcirOffset & 3) == 0 &&
RomBarSize + EfiRomHeader.PcirOffset + sizeof (PCI_DATA_STRUCTURE) <= MaxRomSize) {
ZeroMem (&Pcir, sizeof(Pcir));
IoDev->Mem.Read (
IoDev,
@ -447,6 +449,12 @@ CheckForRom (
&Pcir
);
if (Pcir.Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
break;
}
if (RomBarSize + Pcir.ImageLength * 512 > MaxRomSize) {
break;
}
if ((Pcir.Indicator & 0x80) == 0x00) {
LastImage = FALSE;
}

14
DuetPkg/PciRootBridgeNoEnumerationDxe/X64/PcatIo.c
View File

@ -1,6 +1,6 @@
/*++
Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2012, 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
@ -436,8 +436,10 @@ CheckForRom (
Pcir.ImageLength = 0;
if (EfiRomHeader.Signature == 0xaa55) {
if (EfiRomHeader.Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE &&
EfiRomHeader.PcirOffset != 0 &&
(EfiRomHeader.PcirOffset & 3) == 0 &&
RomBarSize + EfiRomHeader.PcirOffset + sizeof (PCI_DATA_STRUCTURE) <= MaxRomSize) {
ZeroMem (&Pcir, sizeof(Pcir));
IoDev->Mem.Read (
IoDev,
@ -447,6 +449,12 @@ CheckForRom (
&Pcir
);
if (Pcir.Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
break;
}
if (RomBarSize + Pcir.ImageLength * 512 > MaxRomSize) {
break;
}
if ((Pcir.Indicator & 0x80) == 0x00) {
LastImage = FALSE;
}

12
IntelFrameworkModulePkg/Csm/BiosThunk/Snp16Dxe/BiosSnp16.c
View File

@ -1,6 +1,6 @@
/** @file
Copyright (c) 1999 - 2010, Intel Corporation. All rights reserved.<BR>
Copyright (c) 1999 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@ -1226,6 +1226,16 @@ Undi16SimpleNetworkLoadUndi (
DEBUG ((DEBUG_INIT, "Option ROM found at %X\n", RomAddress));
//
// If the pointer to the PCI Data Structure is invalid, no further images can be located.
// The PCI Data Structure must be DWORD aligned.
//
if (PciExpansionRomHeader->PcirOffset == 0 ||
(PciExpansionRomHeader->PcirOffset & 3) != 0 ||
RomAddress + PciExpansionRomHeader->PcirOffset + sizeof (PCI_DATA_STRUCTURE) > 0x100000) {
break;
}
PciDataStructure = (PCI_DATA_STRUCTURE *) (RomAddress + PciExpansionRomHeader->PcirOffset);
if (PciDataStructure->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {

33
IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c
View File

@ -1,6 +1,6 @@
/** @file
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@ -304,14 +304,24 @@ GetPciLegacyRom (
BackupImage = NULL;
RomHeader.Raw = *Rom;
while (RomHeader.Generic->Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
if (*ImageSize <
RomHeader.Raw - (UINT8 *) *Rom + RomHeader.Generic->PcirOffset + sizeof (PCI_DATA_STRUCTURE)
) {
return EFI_NOT_FOUND;
if (RomHeader.Generic->PcirOffset == 0 ||
(RomHeader.Generic->PcirOffset & 3) !=0 ||
*ImageSize < RomHeader.Raw - (UINT8 *) *Rom + RomHeader.Generic->PcirOffset + sizeof (PCI_DATA_STRUCTURE)) {
break;
}
Pcir = (PCI_3_0_DATA_STRUCTURE *) (RomHeader.Raw + RomHeader.Generic->PcirOffset);
//
// Check signature in the PCI Data Structure.
//
if (Pcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
break;
}
if ((UINTN)(RomHeader.Raw - (UINT8 *) *Rom) + Pcir->ImageLength * 512 > *ImageSize) {
break;
}
if (Pcir->CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
Match = FALSE;
if (Pcir->VendorId == VendorId) {
@ -2875,8 +2885,21 @@ LegacyBiosInstallPciRom (
}
LocalRomImage = *RomImage;
if (((PCI_EXPANSION_ROM_HEADER *) LocalRomImage)->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE ||
((PCI_EXPANSION_ROM_HEADER *) LocalRomImage)->PcirOffset == 0 ||
(((PCI_EXPANSION_ROM_HEADER *) LocalRomImage)->PcirOffset & 3 ) != 0) {
mVgaInstallationInProgress = FALSE;
return EFI_UNSUPPORTED;
}
Pcir = (PCI_3_0_DATA_STRUCTURE *)
((UINT8 *) LocalRomImage + ((PCI_EXPANSION_ROM_HEADER *) LocalRomImage)->PcirOffset);
if (Pcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
mVgaInstallationInProgress = FALSE;
return EFI_UNSUPPORTED;
}
ImageSize = Pcir->ImageLength * 512;
if (Pcir->Length >= 0x1C) {
OpromRevision = Pcir->Revision;

70
MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
View File

@ -1,7 +1,7 @@
/** @file
PCI Rom supporting funtions implementation for PCI Bus module.
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2012, 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
@ -53,6 +53,7 @@ LocalLoadFile2 (
UINT32 ScratchSize;
VOID *Scratch;
EFI_DECOMPRESS_PROTOCOL *Decompress;
UINT32 InitializationSize;
EfiOpRomImageNode = (MEDIA_RELATIVE_OFFSET_RANGE_DEVICE_PATH *) FilePath;
if ((EfiOpRomImageNode == NULL) ||
@ -76,7 +77,7 @@ LocalLoadFile2 (
Pcir = (PCI_DATA_STRUCTURE *) ((UINT8 *) EfiRomHeader + EfiRomHeader->PcirOffset);
ASSERT (Pcir->Signature == PCI_DATA_STRUCTURE_SIGNATURE);
if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&
@ -85,9 +86,14 @@ LocalLoadFile2 (
(EfiRomHeader->CompressionType <= EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED)
) {
ImageSize = (UINT32) EfiRomHeader->InitializationSize * 512;
ImageSize = Pcir->ImageLength * 512;
InitializationSize = (UINT32) EfiRomHeader->InitializationSize * 512;
if (InitializationSize > ImageSize || EfiRomHeader->EfiImageHeaderOffset >= InitializationSize) {
return EFI_NOT_FOUND;
}
ImageBuffer = (UINT8 *) EfiRomHeader + EfiRomHeader->EfiImageHeaderOffset;
ImageLength = ImageSize - EfiRomHeader->EfiImageHeaderOffset;
ImageLength = InitializationSize - EfiRomHeader->EfiImageHeaderOffset;
if (EfiRomHeader->CompressionType != EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {
//
@ -321,23 +327,21 @@ ContainEfiImage (
{
PCI_EXPANSION_ROM_HEADER *RomHeader;
PCI_DATA_STRUCTURE *RomPcir;
BOOLEAN FirstCheck;
FirstCheck = TRUE;
RomHeader = RomImage;
RomHeader = RomImage;
if (RomHeader == NULL) {
return FALSE;
}
ASSERT (RomHeader->Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE);
while ((UINT8 *) RomHeader < (UINT8 *) RomImage + RomSize) {
if (RomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
if (FirstCheck) {
return FALSE;
} else {
RomHeader = (PCI_EXPANSION_ROM_HEADER *) ((UINT8 *) RomHeader + 512);
continue;
}
RomHeader = (PCI_EXPANSION_ROM_HEADER *) ((UINT8 *) RomHeader + 512);
continue;
}
FirstCheck = FALSE;
RomPcir = (PCI_DATA_STRUCTURE *) ((UINT8 *) RomHeader + RomHeader->PcirOffset);
ASSERT (RomPcir->Signature == PCI_DATA_STRUCTURE_SIGNATURE);
if (RomPcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) {
return TRUE;
@ -378,6 +382,7 @@ LoadOpRomImage (
PCI_DATA_STRUCTURE *RomPcir;
UINT64 RomSize;
UINT64 RomImageSize;
UINT32 LegacyImageLength;
UINT8 *RomInMemory;
UINT8 CodeType;
@ -430,6 +435,7 @@ LoadOpRomImage (
RomBarOffset = RomBar;
RetStatus = EFI_NOT_FOUND;
FirstCheck = TRUE;
LegacyImageLength = 0;
do {
PciDevice->PciRootBridgeIo->Mem.Read (
@ -452,6 +458,15 @@ LoadOpRomImage (
FirstCheck = FALSE;
OffsetPcir = RomHeader->PcirOffset;
//
// If the pointer to the PCI Data Structure is invalid, no further images can be located.
// The PCI Data Structure must be DWORD aligned.
//
if (OffsetPcir == 0 ||
(OffsetPcir & 3) != 0 ||
RomImageSize + OffsetPcir + sizeof (PCI_DATA_STRUCTURE) > RomSize) {
break;
}
PciDevice->PciRootBridgeIo->Mem.Read (
PciDevice->PciRootBridgeIo,
EfiPciWidthUint8,
@ -459,8 +474,18 @@ LoadOpRomImage (
sizeof (PCI_DATA_STRUCTURE),
(UINT8 *) RomPcir
);
//
// If a valid signature is not present in the PCI Data Structure, no further images can be located.
//
if (RomPcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
break;
}
if (RomImageSize + RomPcir->ImageLength * 512 > RomSize) {
break;
}
if (RomPcir->CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
CodeType = PCI_CODE_TYPE_PCAT_IMAGE;
LegacyImageLength = ((UINT32)((EFI_LEGACY_EXPANSION_ROM_HEADER *)RomHeader)->Size512) * 512;
}
Indicator = RomPcir->Indicator;
RomImageSize = RomImageSize + RomPcir->ImageLength * 512;
@ -472,7 +497,7 @@ LoadOpRomImage (
// of the legacy length and the PCIR Image Length
//
if (CodeType == PCI_CODE_TYPE_PCAT_IMAGE) {
RomImageSize = MAX(RomImageSize, (((EFI_LEGACY_EXPANSION_ROM_HEADER *)RomHeader)->Size512 * 512));
RomImageSize = MAX (RomImageSize, LegacyImageLength);
}
if (RomImageSize > 0) {
@ -635,7 +660,6 @@ ProcessOpRomImage (
EFI_HANDLE ImageHandle;
EFI_STATUS Status;
EFI_STATUS RetStatus;
BOOLEAN FirstCheck;
EFI_PCI_EXPANSION_ROM_HEADER *EfiRomHeader;
PCI_DATA_STRUCTURE *Pcir;
EFI_DEVICE_PATH_PROTOCOL *PciOptionRomImageDevicePath;
@ -651,21 +675,21 @@ ProcessOpRomImage (
RomBar = PciDevice->PciIo.RomImage;
RomBarOffset = (UINT8 *) RomBar;
RetStatus = EFI_NOT_FOUND;
FirstCheck = TRUE;
if (RomBar == NULL) {
return RetStatus;
}
ASSERT (((EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset)->Signature == PCI_EXPANSION_ROM_HEADER_SIGNATURE);
do {
EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) RomBarOffset;
if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
RomBarOffset += 512;
if (FirstCheck) {
break;
} else {
continue;
}
continue;
}
FirstCheck = FALSE;
Pcir = (PCI_DATA_STRUCTURE *) (RomBarOffset + EfiRomHeader->PcirOffset);
ASSERT (Pcir->Signature == PCI_DATA_STRUCTURE_SIGNATURE);
ImageSize = (UINT32) (Pcir->ImageLength * 512);
Indicator = Pcir->Indicator;

36
OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c
View File

@ -1,7 +1,7 @@
/** @file
Platform BDS customizations.
Copyright (c) 2004 - 2009, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2012, 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
@ -1489,6 +1489,7 @@ PciRomLoadEfiDriversFromRomImage (
VOID *DecompressedImageBuffer;
UINT32 ImageLength;
EFI_DECOMPRESS_PROTOCOL *Decompress;
UINT32 InitializationSize;
FileName = L"PciRomInMemory";
@ -1503,24 +1504,43 @@ PciRomLoadEfiDriversFromRomImage (
EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) (UINTN) RomOffset;
if (EfiRomHeader->Signature != 0xaa55) {
if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
return retStatus;
}
//
// If the pointer to the PCI Data Structure is invalid, no further images can be located.
// The PCI Data Structure must be DWORD aligned.
//
if (EfiRomHeader->PcirOffset == 0 ||
(EfiRomHeader->PcirOffset & 3) != 0 ||
RomOffset - (UINTN)Rom + EfiRomHeader->PcirOffset + sizeof (PCI_DATA_STRUCTURE) > RomSize) {
break;
}
Pcir = (PCI_DATA_STRUCTURE *) (UINTN) (RomOffset + EfiRomHeader->PcirOffset);
//
// If a valid signature is not present in the PCI Data Structure, no further images can be located.
//
if (Pcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
break;
}
ImageSize = Pcir->ImageLength * 512;
if (RomOffset - (UINTN)Rom + ImageSize > RomSize) {
break;
}
if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) ) {
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&
((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER))) {
if ((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) ) {
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
InitializationSize = EfiRomHeader->InitializationSize * 512;
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
ImageSize = EfiRomHeader->InitializationSize * 512;
if (InitializationSize <= ImageSize && ImageOffset < InitializationSize) {
ImageBuffer = (VOID *) (UINTN) (RomOffset + ImageOffset);
ImageLength = ImageSize - ImageOffset;
ImageLength = InitializationSize - ImageOffset;
DecompressedImageBuffer = NULL;
//

40
ShellPkg/Library/UefiShellDebug1CommandsLib/LoadPciRom.c
View File

@ -1,7 +1,7 @@
/** @file
Main file for LoadPciRom shell Debug1 function.
Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2012, 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
@ -221,6 +221,7 @@ LoadEfiDriversFromRomImage (
VOID *DecompressedImageBuffer;
UINT32 ImageLength;
EFI_DECOMPRESS_PROTOCOL *Decompress;
UINT32 InitializationSize;
ImageIndex = 0;
ReturnStatus = EFI_NOT_FOUND;
@ -230,27 +231,46 @@ LoadEfiDriversFromRomImage (
EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) (UINTN) RomBarOffset;
if (EfiRomHeader->Signature != 0xaa55) {
if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_LOADPCIROM_CORRUPT), gShellDebug1HiiHandle, FileName, ImageIndex);
// PrintToken (STRING_TOKEN (STR_LOADPCIROM_IMAGE_CORRUPT), HiiHandle, ImageIndex);
return ReturnStatus;
}
//
// If the pointer to the PCI Data Structure is invalid, no further images can be located.
// The PCI Data Structure must be DWORD aligned.
//
if (EfiRomHeader->PcirOffset == 0 ||
(EfiRomHeader->PcirOffset & 3) != 0 ||
RomBarOffset - (UINTN)RomBar + EfiRomHeader->PcirOffset + sizeof (PCI_DATA_STRUCTURE) > RomSize) {
break;
}
Pcir = (PCI_DATA_STRUCTURE *) (UINTN) (RomBarOffset + EfiRomHeader->PcirOffset);
//
// If a valid signature is not present in the PCI Data Structure, no further images can be located.
//
if (Pcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {
break;
}
ImageSize = Pcir->ImageLength * 512;
if (RomBarOffset - (UINTN)RomBar + ImageSize > RomSize) {
break;
}
if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE)
) {
(EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&
((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER))) {
if ((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||
(EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER)
) {
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
ImageSize = EfiRomHeader->InitializationSize * 512;
ImageOffset = EfiRomHeader->EfiImageHeaderOffset;
InitializationSize = EfiRomHeader->InitializationSize * 512;
if (InitializationSize <= ImageSize && ImageOffset < InitializationSize) {
ImageBuffer = (VOID *) (UINTN) (RomBarOffset + ImageOffset);
ImageLength = ImageSize - ImageOffset;
ImageLength = InitializationSize - ImageOffset;
DecompressedImageBuffer = NULL;
//