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Syncboot/efi/lib/dpath.c
Curle 4300dc655c Add EFI documentation, libraries and includes. 
The lib/inc folders are from the GNU-EFI project.
The documentation is from the uefi.org site.

Yes, I know there are duplicate includes. I have a plan for them.
2019-07-17 15:11:52 +01:00

1261 lines
31 KiB
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/*++
Copyright (c) 1998 Intel Corporation
Module Name:
dpath.c
Abstract:
MBR & Device Path functions
Revision History
2014/04 B.Burette - updated device path text representation, conforming to
UEFI specification 2.4 (dec. 2013). More specifically:
- § 9.3.5: added some media types ie. Sata()
- § 9.6.1.2: Acpi(PNP0A03,0) makes more sense when displayed as PciRoot(0)
- § 9.6.1.5: use commas (instead of '|') between option specific parameters
- § 9.6.1.6: hex values in device paths must be preceded by "0x" or "0X"
--*/
#include "lib.h"
#define ALIGN_SIZE(a) ((a % MIN_ALIGNMENT_SIZE) ? MIN_ALIGNMENT_SIZE - (a % MIN_ALIGNMENT_SIZE) : 0)
EFI_DEVICE_PATH *
DevicePathFromHandle (
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH *DevicePath;
Status = uefi_call_wrapper(BS->HandleProtocol, 3, Handle, &DevicePathProtocol, (VOID*)&DevicePath);
if (EFI_ERROR(Status)) {
DevicePath = NULL;
}
return DevicePath;
}
EFI_DEVICE_PATH *
DevicePathInstance (
IN OUT EFI_DEVICE_PATH **DevicePath,
OUT UINTN *Size
)
{
EFI_DEVICE_PATH *Start, *Next, *DevPath;
UINTN Count;
DevPath = *DevicePath;
Start = DevPath;
if (!DevPath) {
return NULL;
}
//
// Check for end of device path type
//
for (Count = 0; ; Count++) {
Next = NextDevicePathNode(DevPath);
if (IsDevicePathEndType(DevPath)) {
break;
}
if (Count > 01000) {
//
// BugBug: Debug code to catch bogus device paths
//
DEBUG((D_ERROR, "DevicePathInstance: DevicePath %x Size %d", *DevicePath, ((UINT8 *) DevPath) - ((UINT8 *) Start) ));
DumpHex (0, 0, ((UINT8 *) DevPath) - ((UINT8 *) Start), Start);
break;
}
DevPath = Next;
}
ASSERT (DevicePathSubType(DevPath) == END_ENTIRE_DEVICE_PATH_SUBTYPE ||
DevicePathSubType(DevPath) == END_INSTANCE_DEVICE_PATH_SUBTYPE);
//
// Set next position
//
if (DevicePathSubType(DevPath) == END_ENTIRE_DEVICE_PATH_SUBTYPE) {
Next = NULL;
}
*DevicePath = Next;
//
// Return size and start of device path instance
//
*Size = ((UINT8 *) DevPath) - ((UINT8 *) Start);
return Start;
}
UINTN
DevicePathInstanceCount (
IN EFI_DEVICE_PATH *DevicePath
)
{
UINTN Count, Size;
Count = 0;
while (DevicePathInstance(&DevicePath, &Size)) {
Count += 1;
}
return Count;
}
EFI_DEVICE_PATH *
AppendDevicePath (
IN EFI_DEVICE_PATH *Src1,
IN EFI_DEVICE_PATH *Src2
)
// Src1 may have multiple "instances" and each instance is appended
// Src2 is appended to each instance is Src1. (E.g., it's possible
// to append a new instance to the complete device path by passing
// it in Src2)
{
UINTN Src1Size, Src1Inst, Src2Size, Size;
EFI_DEVICE_PATH *Dst, *Inst;
UINT8 *DstPos;
//
// If there's only 1 path, just duplicate it
//
if (!Src1) {
ASSERT (!IsDevicePathUnpacked (Src2));
return DuplicateDevicePath (Src2);
}
if (!Src2) {
ASSERT (!IsDevicePathUnpacked (Src1));
return DuplicateDevicePath (Src1);
}
//
// Verify we're not working with unpacked paths
//
// ASSERT (!IsDevicePathUnpacked (Src1));
// ASSERT (!IsDevicePathUnpacked (Src2));
//
// Append Src2 to every instance in Src1
//
Src1Size = DevicePathSize(Src1);
Src1Inst = DevicePathInstanceCount(Src1);
Src2Size = DevicePathSize(Src2);
Size = Src1Size * Src1Inst + Src2Size;
Dst = AllocatePool (Size);
if (Dst) {
DstPos = (UINT8 *) Dst;
//
// Copy all device path instances
//
while ((Inst = DevicePathInstance (&Src1, &Size))) {
CopyMem(DstPos, Inst, Size);
DstPos += Size;
CopyMem(DstPos, Src2, Src2Size);
DstPos += Src2Size;
CopyMem(DstPos, EndInstanceDevicePath, sizeof(EFI_DEVICE_PATH));
DstPos += sizeof(EFI_DEVICE_PATH);
}
// Change last end marker
DstPos -= sizeof(EFI_DEVICE_PATH);
CopyMem(DstPos, EndDevicePath, sizeof(EFI_DEVICE_PATH));
}
return Dst;
}
EFI_DEVICE_PATH *
AppendDevicePathNode (
IN EFI_DEVICE_PATH *Src1,
IN EFI_DEVICE_PATH *Src2
)
// Src1 may have multiple "instances" and each instance is appended
// Src2 is a signal device path node (without a terminator) that is
// appended to each instance is Src1.
{
EFI_DEVICE_PATH *Temp, *Eop;
UINTN Length;
//
// Build a Src2 that has a terminator on it
//
Length = DevicePathNodeLength(Src2);
Temp = AllocatePool (Length + sizeof(EFI_DEVICE_PATH));
if (!Temp) {
return NULL;
}
CopyMem (Temp, Src2, Length);
Eop = NextDevicePathNode(Temp);
SetDevicePathEndNode(Eop);
//
// Append device paths
//
Src1 = AppendDevicePath (Src1, Temp);
FreePool (Temp);
return Src1;
}
EFI_DEVICE_PATH *
FileDevicePath (
IN EFI_HANDLE Device OPTIONAL,
IN CHAR16 *FileName
)
/*++
N.B. Results are allocated from pool. The caller must FreePool
the resulting device path structure
--*/
{
UINTN Size;
FILEPATH_DEVICE_PATH *FilePath;
EFI_DEVICE_PATH *Eop, *DevicePath;
Size = StrSize(FileName);
FilePath = AllocateZeroPool (Size + SIZE_OF_FILEPATH_DEVICE_PATH + sizeof(EFI_DEVICE_PATH));
DevicePath = NULL;
if (FilePath) {
//
// Build a file path
//
FilePath->Header.Type = MEDIA_DEVICE_PATH;
FilePath->Header.SubType = MEDIA_FILEPATH_DP;
SetDevicePathNodeLength (&FilePath->Header, Size + SIZE_OF_FILEPATH_DEVICE_PATH);
CopyMem (FilePath->PathName, FileName, Size);
Eop = NextDevicePathNode(&FilePath->Header);
SetDevicePathEndNode(Eop);
//
// Append file path to device's device path
//
DevicePath = (EFI_DEVICE_PATH *) FilePath;
if (Device) {
DevicePath = AppendDevicePath (
DevicePathFromHandle(Device),
DevicePath
);
FreePool(FilePath);
}
}
return DevicePath;
}
UINTN
DevicePathSize (
IN EFI_DEVICE_PATH *DevPath
)
{
EFI_DEVICE_PATH *Start;
//
// Search for the end of the device path structure
//
Start = DevPath;
while (!IsDevicePathEnd(DevPath)) {
DevPath = NextDevicePathNode(DevPath);
}
//
// Compute the size
//
return ((UINTN) DevPath - (UINTN) Start) + sizeof(EFI_DEVICE_PATH);
}
EFI_DEVICE_PATH *
DuplicateDevicePath (
IN EFI_DEVICE_PATH *DevPath
)
{
EFI_DEVICE_PATH *NewDevPath;
UINTN Size;
//
// Compute the size
//
Size = DevicePathSize (DevPath);
//
// Make a copy
//
NewDevPath = AllocatePool (Size);
if (NewDevPath) {
CopyMem (NewDevPath, DevPath, Size);
}
return NewDevPath;
}
EFI_DEVICE_PATH *
UnpackDevicePath (
IN EFI_DEVICE_PATH *DevPath
)
{
EFI_DEVICE_PATH *Src, *Dest, *NewPath;
UINTN Size;
//
// Walk device path and round sizes to valid boundries
//
Src = DevPath;
Size = 0;
for (; ;) {
Size += DevicePathNodeLength(Src);
Size += ALIGN_SIZE(Size);
if (IsDevicePathEnd(Src)) {
break;
}
Src = NextDevicePathNode(Src);
}
//
// Allocate space for the unpacked path
//
NewPath = AllocateZeroPool (Size);
if (NewPath) {
ASSERT (((UINTN)NewPath) % MIN_ALIGNMENT_SIZE == 0);
//
// Copy each node
//
Src = DevPath;
Dest = NewPath;
for (; ;) {
Size = DevicePathNodeLength(Src);
CopyMem (Dest, Src, Size);
Size += ALIGN_SIZE(Size);
SetDevicePathNodeLength (Dest, Size);
Dest->Type |= EFI_DP_TYPE_UNPACKED;
Dest = (EFI_DEVICE_PATH *) (((UINT8 *) Dest) + Size);
if (IsDevicePathEnd(Src)) {
break;
}
Src = NextDevicePathNode(Src);
}
}
return NewPath;
}
EFI_DEVICE_PATH*
AppendDevicePathInstance (
IN EFI_DEVICE_PATH *Src,
IN EFI_DEVICE_PATH *Instance
)
{
UINT8 *Ptr;
EFI_DEVICE_PATH *DevPath;
UINTN SrcSize;
UINTN InstanceSize;
if (Src == NULL) {
return DuplicateDevicePath (Instance);
}
SrcSize = DevicePathSize(Src);
InstanceSize = DevicePathSize(Instance);
Ptr = AllocatePool (SrcSize + InstanceSize);
DevPath = (EFI_DEVICE_PATH *)Ptr;
ASSERT(DevPath);
CopyMem (Ptr, Src, SrcSize);
// FreePool (Src);
while (!IsDevicePathEnd(DevPath)) {
DevPath = NextDevicePathNode(DevPath);
}
//
// Convert the End to an End Instance, since we are
// appending another instacne after this one its a good
// idea.
//
DevPath->SubType = END_INSTANCE_DEVICE_PATH_SUBTYPE;
DevPath = NextDevicePathNode(DevPath);
CopyMem (DevPath, Instance, InstanceSize);
return (EFI_DEVICE_PATH *)Ptr;
}
EFI_STATUS
LibDevicePathToInterface (
IN EFI_GUID *Protocol,
IN EFI_DEVICE_PATH *FilePath,
OUT VOID **Interface
)
{
EFI_STATUS Status;
EFI_HANDLE Device;
Status = uefi_call_wrapper(BS->LocateDevicePath, 3, Protocol, &FilePath, &Device);
if (!EFI_ERROR(Status)) {
// If we didn't get a direct match return not found
Status = EFI_NOT_FOUND;
if (IsDevicePathEnd(FilePath)) {
//
// It was a direct match, lookup the protocol interface
//
Status =uefi_call_wrapper(BS->HandleProtocol, 3, Device, Protocol, Interface);
}
}
//
// If there was an error, do not return an interface
//
if (EFI_ERROR(Status)) {
*Interface = NULL;
}
return Status;
}
static VOID
_DevPathPci (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
PCI_DEVICE_PATH *Pci;
Pci = DevPath;
CatPrint(Str, L"Pci(0x%x,0x%x)", Pci->Device, Pci->Function);
}
static VOID
_DevPathPccard (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
PCCARD_DEVICE_PATH *Pccard;
Pccard = DevPath;
CatPrint(Str, L"Pccard(0x%x)", Pccard-> FunctionNumber );
}
static VOID
_DevPathMemMap (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
MEMMAP_DEVICE_PATH *MemMap;
MemMap = DevPath;
CatPrint(Str, L"MemMap(%d,0x%x,0x%x)",
MemMap->MemoryType,
MemMap->StartingAddress,
MemMap->EndingAddress
);
}
static VOID
_DevPathController (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
CONTROLLER_DEVICE_PATH *Controller;
Controller = DevPath;
CatPrint(Str, L"Ctrl(%d)",
Controller->Controller
);
}
static VOID
_DevPathVendor (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
VENDOR_DEVICE_PATH *Vendor;
CHAR16 *Type;
UNKNOWN_DEVICE_VENDOR_DEVICE_PATH *UnknownDevPath;
Vendor = DevPath;
switch (DevicePathType(&Vendor->Header)) {
case HARDWARE_DEVICE_PATH: Type = L"Hw"; break;
case MESSAGING_DEVICE_PATH: Type = L"Msg"; break;
case MEDIA_DEVICE_PATH: Type = L"Media"; break;
default: Type = L"?"; break;
}
CatPrint(Str, L"Ven%s(%g", Type, &Vendor->Guid);
if (CompareGuid (&Vendor->Guid, &UnknownDevice) == 0) {
//
// GUID used by EFI to enumerate an EDD 1.1 device
//
UnknownDevPath = (UNKNOWN_DEVICE_VENDOR_DEVICE_PATH *)Vendor;
CatPrint(Str, L":%02x)", UnknownDevPath->LegacyDriveLetter);
} else {
CatPrint(Str, L")");
}
}
/*
Type: 2 (ACPI Device Path) SubType: 1 (ACPI Device Path)
*/
static VOID
_DevPathAcpi (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
ACPI_HID_DEVICE_PATH *Acpi;
Acpi = DevPath;
if ((Acpi->HID & PNP_EISA_ID_MASK) == PNP_EISA_ID_CONST) {
switch ( EISA_ID_TO_NUM( Acpi-> HID ) ) {
case 0x301 : {
CatPrint( Str , L"Keyboard(%d)" , Acpi-> UID ) ;
break ;
}
case 0x401 : {
CatPrint( Str , L"ParallelPort(%d)" , Acpi-> UID ) ;
break ;
}
case 0x501 : {
CatPrint( Str , L"Serial(%d)" , Acpi-> UID ) ;
break ;
}
case 0x604 : {
CatPrint( Str , L"Floppy(%d)" , Acpi-> UID ) ;
break ;
}
case 0xa03 : {
CatPrint( Str , L"PciRoot(%d)" , Acpi-> UID ) ;
break ;
}
case 0xa08 : {
CatPrint( Str , L"PcieRoot(%d)" , Acpi-> UID ) ;
break ;
}
default : {
CatPrint( Str , L"Acpi(PNP%04x" , EISA_ID_TO_NUM( Acpi-> HID ) ) ;
if ( Acpi-> UID ) CatPrint( Str , L",%d" , Acpi-> UID ) ;
CatPrint( Str , L")" ) ;
break ;
}
}
} else {
CatPrint( Str , L"Acpi(0x%X" , Acpi-> HID ) ;
if ( Acpi-> UID ) CatPrint( Str , L",%d" , Acpi-> UID ) ;
CatPrint( Str , L")" , Acpi-> HID , Acpi-> UID ) ;
}
}
static VOID
_DevPathAtapi (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
ATAPI_DEVICE_PATH *Atapi;
Atapi = DevPath;
CatPrint(Str, L"Ata(%s,%s)",
Atapi->PrimarySecondary ? L"Secondary" : L"Primary",
Atapi->SlaveMaster ? L"Slave" : L"Master"
);
}
static VOID
_DevPathScsi (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
SCSI_DEVICE_PATH *Scsi;
Scsi = DevPath;
CatPrint(Str, L"Scsi(%d,%d)", Scsi->Pun, Scsi->Lun);
}
static VOID
_DevPathFibre (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
FIBRECHANNEL_DEVICE_PATH *Fibre;
Fibre = DevPath;
CatPrint( Str , L"Fibre%s(0x%016lx,0x%016lx)" ,
DevicePathType( & Fibre-> Header ) == MSG_FIBRECHANNEL_DP ? L"" : L"Ex" ,
Fibre-> WWN , Fibre-> Lun ) ;
}
static VOID
_DevPath1394 (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
F1394_DEVICE_PATH *F1394;
F1394 = DevPath;
CatPrint(Str, L"1394(%g)", &F1394->Guid);
}
static VOID
_DevPathUsb (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
USB_DEVICE_PATH *Usb;
Usb = DevPath;
CatPrint( Str , L"Usb(0x%x,0x%x)" , Usb-> Port , Usb-> Endpoint ) ;
}
static VOID
_DevPathI2O (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
I2O_DEVICE_PATH *I2O;
I2O = DevPath;
CatPrint(Str, L"I2O(0x%X)", I2O->Tid);
}
static VOID
_DevPathMacAddr (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
MAC_ADDR_DEVICE_PATH *MAC;
UINTN HwAddressSize;
UINTN Index;
MAC = DevPath;
/* HwAddressSize = sizeof(EFI_MAC_ADDRESS); */
HwAddressSize = DevicePathNodeLength( & MAC-> Header ) ;
HwAddressSize -= sizeof( MAC-> Header ) ;
HwAddressSize -= sizeof( MAC-> IfType ) ;
if (MAC->IfType == 0x01 || MAC->IfType == 0x00) {
HwAddressSize = 6;
}
CatPrint(Str, L"Mac(");
for(Index = 0; Index < HwAddressSize; Index++) {
CatPrint(Str, L"%02x",MAC->MacAddress.Addr[Index]);
}
if ( MAC-> IfType != 0 ) {
CatPrint(Str, L",%d" , MAC-> IfType ) ;
}
CatPrint(Str, L")");
}
static VOID
CatPrintIPv4(
IN OUT POOL_PRINT * Str ,
IN EFI_IPv4_ADDRESS * Address
)
{
CatPrint( Str , L"%d.%d.%d.%d" , Address-> Addr[ 0 ] , Address-> Addr[ 1 ] ,
Address-> Addr[ 2 ] , Address-> Addr[ 3 ] ) ;
}
static BOOLEAN
IsNotNullIPv4(
IN EFI_IPv4_ADDRESS * Address
)
{
UINT8 val ;
val = Address-> Addr[ 0 ] | Address-> Addr[ 1 ] ;
val |= Address-> Addr[ 2 ] | Address-> Addr[ 3 ] ;
return val != 0 ;
}
static VOID
CatPrintNetworkProtocol(
IN OUT POOL_PRINT * Str ,
IN UINT16 Proto
)
{
if ( Proto == 6 ) {
CatPrint( Str , L"TCP" ) ;
} else if ( Proto == 17 ) {
CatPrint( Str , L"UDP" ) ;
} else {
CatPrint( Str , L"%d" , Proto ) ;
}
}
static VOID
_DevPathIPv4 (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
IPv4_DEVICE_PATH *IP;
BOOLEAN show ;
IP = DevPath;
CatPrint( Str , L"IPv4(") ;
CatPrintIPv4( Str , & IP-> RemoteIpAddress ) ;
CatPrint( Str , L",") ;
CatPrintNetworkProtocol( Str , IP-> Protocol ) ;
CatPrint( Str , L",%s" , IP-> StaticIpAddress ? L"Static" : L"DHCP" ) ;
show = IsNotNullIPv4( & IP-> LocalIpAddress ) ;
if ( ! show && DevicePathNodeLength( & IP-> Header ) == sizeof( IPv4_DEVICE_PATH ) ) {
/* only version 2 includes gateway and netmask */
show |= IsNotNullIPv4( & IP-> GatewayIpAddress ) ;
show |= IsNotNullIPv4( & IP-> SubnetMask ) ;
}
if ( show ) {
CatPrint( Str , L"," ) ;
CatPrintIPv4( Str , & IP-> LocalIpAddress ) ;
if ( DevicePathNodeLength( & IP-> Header ) == sizeof( IPv4_DEVICE_PATH ) ) {
/* only version 2 includes gateway and netmask */
show = IsNotNullIPv4( & IP-> GatewayIpAddress ) ;
show |= IsNotNullIPv4( & IP-> SubnetMask ) ;
if ( show ) {
CatPrint( Str , L",") ;
CatPrintIPv4( Str , & IP-> GatewayIpAddress ) ;
if ( IsNotNullIPv4( & IP-> SubnetMask ) ) {
CatPrint( Str , L",") ;
CatPrintIPv4( Str , & IP-> SubnetMask ) ;
}
}
}
}
CatPrint( Str , L")") ;
}
#define CatPrintIPv6_ADD( x , y ) ( ( (UINT16) ( x ) ) << 8 | ( y ) )
static VOID
CatPrintIPv6(
IN OUT POOL_PRINT * Str ,
IN EFI_IPv6_ADDRESS * Address
)
{
CatPrint( Str , L"%x:%x:%x:%x:%x:%x:%x:%x" ,
CatPrintIPv6_ADD( Address-> Addr[ 0 ] , Address-> Addr[ 1 ] ) ,
CatPrintIPv6_ADD( Address-> Addr[ 2 ] , Address-> Addr[ 3 ] ) ,
CatPrintIPv6_ADD( Address-> Addr[ 4 ] , Address-> Addr[ 5 ] ) ,
CatPrintIPv6_ADD( Address-> Addr[ 6 ] , Address-> Addr[ 7 ] ) ,
CatPrintIPv6_ADD( Address-> Addr[ 8 ] , Address-> Addr[ 9 ] ) ,
CatPrintIPv6_ADD( Address-> Addr[ 10 ] , Address-> Addr[ 11 ] ) ,
CatPrintIPv6_ADD( Address-> Addr[ 12 ] , Address-> Addr[ 13 ] ) ,
CatPrintIPv6_ADD( Address-> Addr[ 14 ] , Address-> Addr[ 15 ] ) ) ;
}
static VOID
_DevPathIPv6 (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
IPv6_DEVICE_PATH *IP;
IP = DevPath;
CatPrint( Str , L"IPv6(") ;
CatPrintIPv6( Str , & IP-> RemoteIpAddress ) ;
CatPrint( Str , L",") ;
CatPrintNetworkProtocol( Str, IP-> Protocol ) ;
CatPrint( Str , L",%s," , IP-> IPAddressOrigin ?
( IP-> IPAddressOrigin == 1 ? L"StatelessAutoConfigure" :
L"StatefulAutoConfigure" ) : L"Static" ) ;
CatPrintIPv6( Str , & IP-> LocalIpAddress ) ;
if ( DevicePathNodeLength( & IP-> Header ) == sizeof( IPv6_DEVICE_PATH ) ) {
CatPrint( Str , L",") ;
CatPrintIPv6( Str , & IP-> GatewayIpAddress ) ;
CatPrint( Str , L",") ;
CatPrint( Str , L"%d" , & IP-> PrefixLength ) ;
}
CatPrint( Str , L")") ;
}
static VOID
_DevPathUri (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
URI_DEVICE_PATH *Uri;
Uri = DevPath;
CatPrint( Str, L"Uri(%a)", Uri->Uri );
}
static VOID
_DevPathInfiniBand (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
INFINIBAND_DEVICE_PATH *InfiniBand;
InfiniBand = DevPath;
CatPrint( Str , L"Infiniband(0x%x,%g,0x%lx,0x%lx,0x%lx)" ,
InfiniBand-> ResourceFlags , InfiniBand-> PortGid , InfiniBand-> ServiceId ,
InfiniBand-> TargetPortId , InfiniBand-> DeviceId ) ;
}
static VOID
_DevPathUart (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
UART_DEVICE_PATH *Uart;
CHAR8 Parity;
Uart = DevPath;
switch (Uart->Parity) {
case 0 : Parity = 'D'; break;
case 1 : Parity = 'N'; break;
case 2 : Parity = 'E'; break;
case 3 : Parity = 'O'; break;
case 4 : Parity = 'M'; break;
case 5 : Parity = 'S'; break;
default : Parity = 'x'; break;
}
if (Uart->BaudRate == 0) {
CatPrint(Str, L"Uart(DEFAULT %c",Uart->BaudRate,Parity);
} else {
CatPrint(Str, L"Uart(%d %c",Uart->BaudRate,Parity);
}
if (Uart->DataBits == 0) {
CatPrint(Str, L"D");
} else {
CatPrint(Str, L"%d",Uart->DataBits);
}
switch (Uart->StopBits) {
case 0 : CatPrint(Str, L"D)"); break;
case 1 : CatPrint(Str, L"1)"); break;
case 2 : CatPrint(Str, L"1.5)"); break;
case 3 : CatPrint(Str, L"2)"); break;
default : CatPrint(Str, L"x)"); break;
}
}
static VOID
_DevPathSata (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
SATA_DEVICE_PATH * Sata ;
Sata = DevPath;
CatPrint( Str , L"Sata(0x%x,0x%x,0x%x)" , Sata-> HBAPortNumber ,
Sata-> PortMultiplierPortNumber , Sata-> Lun ) ;
}
static VOID
_DevPathHardDrive (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
HARDDRIVE_DEVICE_PATH *Hd;
Hd = DevPath;
switch (Hd->SignatureType) {
case SIGNATURE_TYPE_MBR:
CatPrint(Str, L"HD(Part%d,Sig%08X)",
Hd->PartitionNumber,
*((UINT32 *)(&(Hd->Signature[0])))
);
break;
case SIGNATURE_TYPE_GUID:
CatPrint(Str, L"HD(Part%d,Sig%g)",
Hd->PartitionNumber,
(EFI_GUID *) &(Hd->Signature[0])
);
break;
default:
CatPrint(Str, L"HD(Part%d,MBRType=%02x,SigType=%02x)",
Hd->PartitionNumber,
Hd->MBRType,
Hd->SignatureType
);
break;
}
}
static VOID
_DevPathCDROM (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
CDROM_DEVICE_PATH *Cd;
Cd = DevPath;
CatPrint( Str , L"CDROM(0x%x)" , Cd-> BootEntry ) ;
}
static VOID
_DevPathFilePath (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
FILEPATH_DEVICE_PATH *Fp;
Fp = DevPath;
CatPrint(Str, L"%s", Fp->PathName);
}
static VOID
_DevPathMediaProtocol (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
MEDIA_PROTOCOL_DEVICE_PATH *MediaProt;
MediaProt = DevPath;
CatPrint(Str, L"%g", &MediaProt->Protocol);
}
static VOID
_DevPathBssBss (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
BBS_BBS_DEVICE_PATH *Bss;
CHAR16 *Type;
Bss = DevPath;
switch (Bss->DeviceType) {
case BBS_TYPE_FLOPPY: Type = L"Floppy"; break;
case BBS_TYPE_HARDDRIVE: Type = L"Harddrive"; break;
case BBS_TYPE_CDROM: Type = L"CDROM"; break;
case BBS_TYPE_PCMCIA: Type = L"PCMCIA"; break;
case BBS_TYPE_USB: Type = L"Usb"; break;
case BBS_TYPE_EMBEDDED_NETWORK: Type = L"Net"; break;
default: Type = L"?"; break;
}
CatPrint(Str, L"Bss-%s(%a)", Type, Bss->String);
}
static VOID
_DevPathEndInstance (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath EFI_UNUSED
)
{
CatPrint(Str, L",");
}
/**
* Print unknown device node.
* UEFI 2.4 § 9.6.1.6 table 89.
*/
static VOID
_DevPathNodeUnknown (
IN OUT POOL_PRINT *Str,
IN VOID *DevPath
)
{
EFI_DEVICE_PATH * Path ;
UINT8 * value ;
int length , index ;
Path = DevPath ;
value = DevPath ;
value += 4 ;
switch ( Path-> Type ) {
case HARDWARE_DEVICE_PATH : { /* Unknown Hardware Device Path */
CatPrint( Str , L"HardwarePath(%d" , Path-> SubType ) ;
break ;
}
case ACPI_DEVICE_PATH : { /* Unknown ACPI Device Path */
CatPrint( Str , L"AcpiPath(%d" , Path-> SubType ) ;
break ;
}
case MESSAGING_DEVICE_PATH : { /* Unknown Messaging Device Path */
CatPrint( Str , L"Msg(%d" , Path-> SubType ) ;
break ;
}
case MEDIA_DEVICE_PATH : { /* Unknown Media Device Path */
CatPrint( Str , L"MediaPath(%d" , Path-> SubType ) ;
break ;
}
case BBS_DEVICE_PATH : { /* Unknown BIOS Boot Specification Device Path */
CatPrint( Str , L"BbsPath(%d" , Path-> SubType ) ;
break ;
}
default : { /* Unknown Device Path */
CatPrint( Str , L"Path(%d,%d" , Path-> Type , Path-> SubType ) ;
break ;
}
}
length = DevicePathNodeLength( Path ) ;
for ( index = 0 ; index < length ; index ++ ) {
if ( index == 0 ) CatPrint( Str , L",0x" ) ;
CatPrint( Str , L"%02x" , * value ) ;
value ++ ;
}
CatPrint( Str , L")" ) ;
}
/*
* Table to convert "Type" and "SubType" to a "convert to text" function/
* Entries hold "Type" and "SubType" for know values.
* Special "SubType" 0 is used as default for known type with unknown subtype.
*/
struct {
UINT8 Type;
UINT8 SubType;
VOID (*Function)(POOL_PRINT *, VOID *);
} DevPathTable[] = {
{ HARDWARE_DEVICE_PATH, HW_PCI_DP, _DevPathPci},
{ HARDWARE_DEVICE_PATH, HW_PCCARD_DP, _DevPathPccard},
{ HARDWARE_DEVICE_PATH, HW_MEMMAP_DP, _DevPathMemMap},
{ HARDWARE_DEVICE_PATH, HW_VENDOR_DP, _DevPathVendor},
{ HARDWARE_DEVICE_PATH, HW_CONTROLLER_DP, _DevPathController},
{ ACPI_DEVICE_PATH, ACPI_DP, _DevPathAcpi},
{ MESSAGING_DEVICE_PATH, MSG_ATAPI_DP, _DevPathAtapi},
{ MESSAGING_DEVICE_PATH, MSG_SCSI_DP, _DevPathScsi},
{ MESSAGING_DEVICE_PATH, MSG_FIBRECHANNEL_DP, _DevPathFibre},
{ MESSAGING_DEVICE_PATH, MSG_1394_DP, _DevPath1394},
{ MESSAGING_DEVICE_PATH, MSG_USB_DP, _DevPathUsb},
{ MESSAGING_DEVICE_PATH, MSG_I2O_DP, _DevPathI2O},
{ MESSAGING_DEVICE_PATH, MSG_MAC_ADDR_DP, _DevPathMacAddr},
{ MESSAGING_DEVICE_PATH, MSG_IPv4_DP, _DevPathIPv4},
{ MESSAGING_DEVICE_PATH, MSG_IPv6_DP, _DevPathIPv6},
{ MESSAGING_DEVICE_PATH, MSG_URI_DP, _DevPathUri},
{ MESSAGING_DEVICE_PATH, MSG_INFINIBAND_DP, _DevPathInfiniBand},
{ MESSAGING_DEVICE_PATH, MSG_UART_DP, _DevPathUart},
{ MESSAGING_DEVICE_PATH , MSG_SATA_DP , _DevPathSata } ,
{ MESSAGING_DEVICE_PATH, MSG_VENDOR_DP, _DevPathVendor},
{ MEDIA_DEVICE_PATH, MEDIA_HARDDRIVE_DP, _DevPathHardDrive},
{ MEDIA_DEVICE_PATH, MEDIA_CDROM_DP, _DevPathCDROM},
{ MEDIA_DEVICE_PATH, MEDIA_VENDOR_DP, _DevPathVendor},
{ MEDIA_DEVICE_PATH, MEDIA_FILEPATH_DP, _DevPathFilePath},
{ MEDIA_DEVICE_PATH, MEDIA_PROTOCOL_DP, _DevPathMediaProtocol},
{ BBS_DEVICE_PATH, BBS_BBS_DP, _DevPathBssBss},
{ END_DEVICE_PATH_TYPE, END_INSTANCE_DEVICE_PATH_SUBTYPE, _DevPathEndInstance},
{ 0, 0, NULL}
};
CHAR16 *
DevicePathToStr (
EFI_DEVICE_PATH *DevPath
)
/*++
Turns the Device Path into a printable string. Allcoates
the string from pool. The caller must FreePool the returned
string.
--*/
{
POOL_PRINT Str;
EFI_DEVICE_PATH *DevPathNode;
VOID (*DumpNode)(POOL_PRINT *, VOID *);
UINTN Index, NewSize;
ZeroMem(&Str, sizeof(Str));
//
// Unpacked the device path
//
DevPath = UnpackDevicePath(DevPath);
ASSERT (DevPath);
//
// Process each device path node
//
DevPathNode = DevPath;
while (!IsDevicePathEnd(DevPathNode)) {
//
// Find the handler to dump this device path node
//
DumpNode = NULL;
for (Index = 0; DevPathTable[Index].Function; Index += 1) {
if (DevicePathType(DevPathNode) == DevPathTable[Index].Type &&
DevicePathSubType(DevPathNode) == DevPathTable[Index].SubType) {
DumpNode = DevPathTable[Index].Function;
break;
}
}
//
// If not found, use a generic function
//
if (!DumpNode) {
DumpNode = _DevPathNodeUnknown;
}
//
// Put a path seperator in if needed
//
if (Str.len && DumpNode != _DevPathEndInstance) {
CatPrint (&Str, L"/");
}
//
// Print this node of the device path
//
DumpNode (&Str, DevPathNode);
//
// Next device path node
//
DevPathNode = NextDevicePathNode(DevPathNode);
}
//
// Shrink pool used for string allocation
//
FreePool (DevPath);
NewSize = (Str.len + 1) * sizeof(CHAR16);
Str.str = ReallocatePool (Str.str, NewSize, NewSize);
Str.str[Str.len] = 0;
return Str.str;
}
BOOLEAN
LibMatchDevicePaths (
IN EFI_DEVICE_PATH *Multi,
IN EFI_DEVICE_PATH *Single
)
{
EFI_DEVICE_PATH *DevicePath, *DevicePathInst;
UINTN Size;
if (!Multi || !Single) {
return FALSE;
}
DevicePath = Multi;
while ((DevicePathInst = DevicePathInstance (&DevicePath, &Size))) {
if (CompareMem (Single, DevicePathInst, Size) == 0) {
return TRUE;
}
}
return FALSE;
}
EFI_DEVICE_PATH *
LibDuplicateDevicePathInstance (
IN EFI_DEVICE_PATH *DevPath
)
{
EFI_DEVICE_PATH *NewDevPath,*DevicePathInst,*Temp;
UINTN Size = 0;
//
// get the size of an instance from the input
//
Temp = DevPath;
DevicePathInst = DevicePathInstance (&Temp, &Size);
//
// Make a copy and set proper end type
//
NewDevPath = NULL;
if (Size) {
NewDevPath = AllocatePool (Size + sizeof(EFI_DEVICE_PATH));
}
if (NewDevPath) {
CopyMem (NewDevPath, DevicePathInst, Size);
Temp = NextDevicePathNode(NewDevPath);
SetDevicePathEndNode(Temp);
}
return NewDevPath;
}
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