tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
audk/MdeModulePkg/Library/UefiBootManagerLib/BmBootDescription.c

882 lines
28 KiB
C
Raw Blame History

/** @file
Library functions which relate with boot option description.
Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<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 "InternalBm.h"
#define VENDOR_IDENTIFICATION_OFFSET 3
#define VENDOR_IDENTIFICATION_LENGTH 8
#define PRODUCT_IDENTIFICATION_OFFSET 11
#define PRODUCT_IDENTIFICATION_LENGTH 16
CONST UINT16 mBmUsbLangId = 0x0409; // English
CHAR16 mBmUefiPrefix[] = L"UEFI ";
LIST_ENTRY mPlatformBootDescriptionHandlers = INITIALIZE_LIST_HEAD_VARIABLE (mPlatformBootDescriptionHandlers);
/**
For a bootable Device path, return its boot type.
@param DevicePath The bootable device Path to check
@retval AcpiFloppyBoot If given device path contains ACPI_DEVICE_PATH type device path node
which HID is floppy device.
@retval MessageAtapiBoot If given device path contains MESSAGING_DEVICE_PATH type device path node
and its last device path node's subtype is MSG_ATAPI_DP.
@retval MessageSataBoot If given device path contains MESSAGING_DEVICE_PATH type device path node
and its last device path node's subtype is MSG_SATA_DP.
@retval MessageScsiBoot If given device path contains MESSAGING_DEVICE_PATH type device path node
and its last device path node's subtype is MSG_SCSI_DP.
@retval MessageUsbBoot If given device path contains MESSAGING_DEVICE_PATH type device path node
and its last device path node's subtype is MSG_USB_DP.
@retval BmMiscBoot If tiven device path doesn't match the above condition.
**/
BM_BOOT_TYPE
BmDevicePathType (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
EFI_DEVICE_PATH_PROTOCOL *Node;
EFI_DEVICE_PATH_PROTOCOL *NextNode;
ASSERT (DevicePath != NULL);
for (Node = DevicePath; !IsDevicePathEndType (Node); Node = NextDevicePathNode (Node)) {
switch (DevicePathType (Node)) {
case ACPI_DEVICE_PATH:
if (EISA_ID_TO_NUM (((ACPI_HID_DEVICE_PATH *) Node)->HID) == 0x0604) {
return BmAcpiFloppyBoot;
}
break;
case HARDWARE_DEVICE_PATH:
if (DevicePathSubType (Node) == HW_CONTROLLER_DP) {
return BmHardwareDeviceBoot;
}
break;
case MESSAGING_DEVICE_PATH:
//
// Skip LUN device node
//
NextNode = Node;
do {
NextNode = NextDevicePathNode (NextNode);
} while (
(DevicePathType (NextNode) == MESSAGING_DEVICE_PATH) &&
(DevicePathSubType(NextNode) == MSG_DEVICE_LOGICAL_UNIT_DP)
);
//
// If the device path not only point to driver device, it is not a messaging device path,
//
if (!IsDevicePathEndType (NextNode)) {
continue;
}
switch (DevicePathSubType (Node)) {
case MSG_ATAPI_DP:
return BmMessageAtapiBoot;
break;
case MSG_SATA_DP:
return BmMessageSataBoot;
break;
case MSG_USB_DP:
return BmMessageUsbBoot;
break;
case MSG_SCSI_DP:
return BmMessageScsiBoot;
break;
}
}
}
return BmMiscBoot;
}
/**
Eliminate the extra spaces in the Str to one space.
@param Str Input string info.
**/
VOID
BmEliminateExtraSpaces (
IN CHAR16 *Str
)
{
UINTN Index;
UINTN ActualIndex;
for (Index = 0, ActualIndex = 0; Str[Index] != L'\0'; Index++) {
if ((Str[Index] != L' ') || ((ActualIndex > 0) && (Str[ActualIndex - 1] != L' '))) {
Str[ActualIndex++] = Str[Index];
}
}
Str[ActualIndex] = L'\0';
}
/**
Try to get the controller's ATA/ATAPI description.
@param Handle Controller handle.
@return The description string.
**/
CHAR16 *
BmGetDescriptionFromDiskInfo (
IN EFI_HANDLE Handle
)
{
UINTN Index;
EFI_STATUS Status;
EFI_DISK_INFO_PROTOCOL *DiskInfo;
UINT32 BufferSize;
EFI_ATAPI_IDENTIFY_DATA IdentifyData;
EFI_SCSI_INQUIRY_DATA InquiryData;
CHAR16 *Description;
UINTN Length;
CONST UINTN ModelNameLength = 40;
CONST UINTN SerialNumberLength = 20;
CHAR8 *StrPtr;
UINT8 Temp;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
Description = NULL;
Status = gBS->HandleProtocol (
Handle,
&gEfiDiskInfoProtocolGuid,
(VOID **) &DiskInfo
);
if (EFI_ERROR (Status)) {
return NULL;
}
if (CompareGuid (&DiskInfo->Interface, &gEfiDiskInfoAhciInterfaceGuid) ||
CompareGuid (&DiskInfo->Interface, &gEfiDiskInfoIdeInterfaceGuid)) {
BufferSize = sizeof (EFI_ATAPI_IDENTIFY_DATA);
Status = DiskInfo->Identify (
DiskInfo,
&IdentifyData,
&BufferSize
);
if (!EFI_ERROR (Status)) {
Description = AllocateZeroPool ((ModelNameLength + SerialNumberLength + 2) * sizeof (CHAR16));
ASSERT (Description != NULL);
for (Index = 0; Index + 1 < ModelNameLength; Index += 2) {
Description[Index] = (CHAR16) IdentifyData.ModelName[Index + 1];
Description[Index + 1] = (CHAR16) IdentifyData.ModelName[Index];
}
Length = Index;
Description[Length++] = L' ';
for (Index = 0; Index + 1 < SerialNumberLength; Index += 2) {
Description[Length + Index] = (CHAR16) IdentifyData.SerialNo[Index + 1];
Description[Length + Index + 1] = (CHAR16) IdentifyData.SerialNo[Index];
}
Length += Index;
Description[Length++] = L'\0';
ASSERT (Length == ModelNameLength + SerialNumberLength + 2);
BmEliminateExtraSpaces (Description);
}
} else if (CompareGuid (&DiskInfo->Interface, &gEfiDiskInfoScsiInterfaceGuid)) {
BufferSize = sizeof (EFI_SCSI_INQUIRY_DATA);
Status = DiskInfo->Inquiry (
DiskInfo,
&InquiryData,
&BufferSize
);
if (!EFI_ERROR (Status)) {
Description = AllocateZeroPool ((VENDOR_IDENTIFICATION_LENGTH + PRODUCT_IDENTIFICATION_LENGTH + 2) * sizeof (CHAR16));
ASSERT (Description != NULL);
//
// Per SCSI spec, EFI_SCSI_INQUIRY_DATA.Reserved_5_95[3 - 10] save the Verdor identification
// EFI_SCSI_INQUIRY_DATA.Reserved_5_95[11 - 26] save the product identification,
// Here combine the vendor identification and product identification to the description.
//
StrPtr = (CHAR8 *) (&InquiryData.Reserved_5_95[VENDOR_IDENTIFICATION_OFFSET]);
Temp = StrPtr[VENDOR_IDENTIFICATION_LENGTH];
StrPtr[VENDOR_IDENTIFICATION_LENGTH] = '\0';
AsciiStrToUnicodeStrS (StrPtr, Description, VENDOR_IDENTIFICATION_LENGTH + 1);
StrPtr[VENDOR_IDENTIFICATION_LENGTH] = Temp;
//
// Add one space at the middle of vendor information and product information.
//
Description[VENDOR_IDENTIFICATION_LENGTH] = L' ';
StrPtr = (CHAR8 *) (&InquiryData.Reserved_5_95[PRODUCT_IDENTIFICATION_OFFSET]);
StrPtr[PRODUCT_IDENTIFICATION_LENGTH] = '\0';
AsciiStrToUnicodeStrS (StrPtr, Description + VENDOR_IDENTIFICATION_LENGTH + 1, PRODUCT_IDENTIFICATION_LENGTH + 1);
BmEliminateExtraSpaces (Description);
}
} else if (CompareGuid (&DiskInfo->Interface, &gEfiDiskInfoSdMmcInterfaceGuid)) {
DevicePath = DevicePathFromHandle (Handle);
if (DevicePath == NULL) {
return NULL;
}
while (!IsDevicePathEnd (DevicePath) && (DevicePathType (DevicePath) != MESSAGING_DEVICE_PATH)) {
DevicePath = NextDevicePathNode (DevicePath);
}
if (IsDevicePathEnd (DevicePath)) {
return NULL;
}
if (DevicePathSubType (DevicePath) == MSG_SD_DP) {
Description = L"SD Device";
} else if (DevicePathSubType (DevicePath) == MSG_EMMC_DP) {
Description = L"eMMC Device";
} else {
return NULL;
}
Description = AllocateCopyPool (StrSize (Description), Description);
}
return Description;
}
/**
Try to get the controller's USB description.
@param Handle Controller handle.
@return The description string.
**/
CHAR16 *
BmGetUsbDescription (
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
EFI_USB_IO_PROTOCOL *UsbIo;
CHAR16 NullChar;
CHAR16 *Manufacturer;
CHAR16 *Product;
CHAR16 *SerialNumber;
CHAR16 *Description;
EFI_USB_DEVICE_DESCRIPTOR DevDesc;
UINTN DescMaxSize;
Status = gBS->HandleProtocol (
Handle,
&gEfiUsbIoProtocolGuid,
(VOID **) &UsbIo
);
if (EFI_ERROR (Status)) {
return NULL;
}
NullChar = L'\0';
Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);
if (EFI_ERROR (Status)) {
return NULL;
}
Status = UsbIo->UsbGetStringDescriptor (
UsbIo,
mBmUsbLangId,
DevDesc.StrManufacturer,
&Manufacturer
);
if (EFI_ERROR (Status)) {
Manufacturer = &NullChar;
}
Status = UsbIo->UsbGetStringDescriptor (
UsbIo,
mBmUsbLangId,
DevDesc.StrProduct,
&Product
);
if (EFI_ERROR (Status)) {
Product = &NullChar;
}
Status = UsbIo->UsbGetStringDescriptor (
UsbIo,
mBmUsbLangId,
DevDesc.StrSerialNumber,
&SerialNumber
);
if (EFI_ERROR (Status)) {
SerialNumber = &NullChar;
}
if ((Manufacturer == &NullChar) &&
(Product == &NullChar) &&
(SerialNumber == &NullChar)
) {
return NULL;
}
DescMaxSize = StrSize (Manufacturer) + StrSize (Product) + StrSize (SerialNumber);
Description = AllocateZeroPool (DescMaxSize);
ASSERT (Description != NULL);
StrCatS (Description, DescMaxSize/sizeof(CHAR16), Manufacturer);
StrCatS (Description, DescMaxSize/sizeof(CHAR16), L" ");
StrCatS (Description, DescMaxSize/sizeof(CHAR16), Product);
StrCatS (Description, DescMaxSize/sizeof(CHAR16), L" ");
StrCatS (Description, DescMaxSize/sizeof(CHAR16), SerialNumber);
if (Manufacturer != &NullChar) {
FreePool (Manufacturer);
}
if (Product != &NullChar) {
FreePool (Product);
}
if (SerialNumber != &NullChar) {
FreePool (SerialNumber);
}
BmEliminateExtraSpaces (Description);
return Description;
}
/**
Return the description for network boot device.
@param Handle Controller handle.
@return The description string.
**/
CHAR16 *
BmGetNetworkDescription (
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
MAC_ADDR_DEVICE_PATH *Mac;
VLAN_DEVICE_PATH *Vlan;
EFI_DEVICE_PATH_PROTOCOL *Ip;
EFI_DEVICE_PATH_PROTOCOL *Uri;
CHAR16 *Description;
UINTN DescriptionSize;
Status = gBS->OpenProtocol (
Handle,
&gEfiLoadFileProtocolGuid,
NULL,
gImageHandle,
Handle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
if (EFI_ERROR (Status)) {
return NULL;
}
Status = gBS->OpenProtocol (
Handle,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
gImageHandle,
Handle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status) || (DevicePath == NULL)) {
return NULL;
}
//
// The PXE device path is like:
// ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]
// ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv4(...)
// ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv6(...)
//
// The HTTP device path is like:
// ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv4(...)[/Dns(...)]/Uri(...)
// ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv6(...)[/Dns(...)]/Uri(...)
//
while (!IsDevicePathEnd (DevicePath) &&
((DevicePathType (DevicePath) != MESSAGING_DEVICE_PATH) ||
(DevicePathSubType (DevicePath) != MSG_MAC_ADDR_DP))
) {
DevicePath = NextDevicePathNode (DevicePath);
}
if (IsDevicePathEnd (DevicePath)) {
return NULL;
}
Mac = (MAC_ADDR_DEVICE_PATH *) DevicePath;
DevicePath = NextDevicePathNode (DevicePath);
//
// Locate the optional Vlan node
//
if ((DevicePathType (DevicePath) == MESSAGING_DEVICE_PATH) &&
(DevicePathSubType (DevicePath) == MSG_VLAN_DP)
) {
Vlan = (VLAN_DEVICE_PATH *) DevicePath;
DevicePath = NextDevicePathNode (DevicePath);
} else {
Vlan = NULL;
}
//
// Skip the optional Wi-Fi node
//
if ((DevicePathType (DevicePath) == MESSAGING_DEVICE_PATH) &&
(DevicePathSubType (DevicePath) == MSG_WIFI_DP)
) {
DevicePath = NextDevicePathNode (DevicePath);
}
//
// Locate the IP node
//
if ((DevicePathType (DevicePath) == MESSAGING_DEVICE_PATH) &&
((DevicePathSubType (DevicePath) == MSG_IPv4_DP) ||
(DevicePathSubType (DevicePath) == MSG_IPv6_DP))
) {
Ip = DevicePath;
DevicePath = NextDevicePathNode (DevicePath);
} else {
Ip = NULL;
}
//
// Skip the optional DNS node
//
if ((DevicePathType (DevicePath) == MESSAGING_DEVICE_PATH) &&
(DevicePathSubType (DevicePath) == MSG_DNS_DP)
) {
DevicePath = NextDevicePathNode (DevicePath);
}
//
// Locate the URI node
//
if ((DevicePathType (DevicePath) == MESSAGING_DEVICE_PATH) &&
(DevicePathSubType (DevicePath) == MSG_URI_DP)
) {
Uri = DevicePath;
DevicePath = NextDevicePathNode (DevicePath);
} else {
Uri = NULL;
}
//
// Build description like below:
// "PXEv6 (MAC:112233445566 VLAN1)"
// "HTTPv4 (MAC:112233445566)"
//
DescriptionSize = sizeof (L"HTTPv6 (MAC:112233445566 VLAN65535)");
Description = AllocatePool (DescriptionSize);
ASSERT (Description != NULL);
UnicodeSPrint (
Description, DescriptionSize,
(Vlan == NULL) ?
L"%sv%d (MAC:%02x%02x%02x%02x%02x%02x)" :
L"%sv%d (MAC:%02x%02x%02x%02x%02x%02x VLAN%d)",
(Uri == NULL) ? L"PXE" : L"HTTP",
((Ip == NULL) || (DevicePathSubType (Ip) == MSG_IPv4_DP)) ? 4 : 6,
Mac->MacAddress.Addr[0], Mac->MacAddress.Addr[1], Mac->MacAddress.Addr[2],
Mac->MacAddress.Addr[3], Mac->MacAddress.Addr[4], Mac->MacAddress.Addr[5],
(Vlan == NULL) ? 0 : Vlan->VlanId
);
return Description;
}
/**
Return the boot description for LoadFile
@param Handle Controller handle.
@return The description string.
**/
CHAR16 *
BmGetLoadFileDescription (
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *FilePath;
EFI_DEVICE_PATH_PROTOCOL *DevicePathNode;
CHAR16 *Description;
EFI_LOAD_FILE_PROTOCOL *LoadFile;
Status = gBS->HandleProtocol (Handle, &gEfiLoadFileProtocolGuid, (VOID **)&LoadFile);
if (EFI_ERROR (Status)) {
return NULL;
}
//
// Get the file name
//
Description = NULL;
Status = gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, (VOID **)&FilePath);
if (!EFI_ERROR (Status)) {
DevicePathNode = FilePath;
while (!IsDevicePathEnd (DevicePathNode)) {
if (DevicePathNode->Type == MEDIA_DEVICE_PATH && DevicePathNode->SubType == MEDIA_FILEPATH_DP) {
Description = (CHAR16 *)(DevicePathNode + 1);
break;
}
DevicePathNode = NextDevicePathNode (DevicePathNode);
}
}
if (Description != NULL) {
return AllocateCopyPool (StrSize (Description), Description);
}
return NULL;
}
/**
Return the boot description for NVME boot device.
@param Handle Controller handle.
@return The description string.
**/
CHAR16 *
BmGetNvmeDescription (
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL *NvmePassthru;
EFI_DEV_PATH_PTR DevicePath;
EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET CommandPacket;
EFI_NVM_EXPRESS_COMMAND Command;
EFI_NVM_EXPRESS_COMPLETION Completion;
NVME_ADMIN_CONTROLLER_DATA ControllerData;
CHAR16 *Description;
CHAR16 *Char;
UINTN Index;
Status = gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, (VOID **) &DevicePath.DevPath);
if (EFI_ERROR (Status)) {
return NULL;
}
Status = gBS->LocateDevicePath (&gEfiNvmExpressPassThruProtocolGuid, &DevicePath.DevPath, &Handle);
if (EFI_ERROR (Status) ||
(DevicePathType (DevicePath.DevPath) != MESSAGING_DEVICE_PATH) ||
(DevicePathSubType (DevicePath.DevPath) != MSG_NVME_NAMESPACE_DP)) {
//
// Do not return description when the Handle is not a child of NVME controller.
//
return NULL;
}
//
// Send ADMIN_IDENTIFY command to NVME controller to get the model and serial number.
//
Status = gBS->HandleProtocol (Handle, &gEfiNvmExpressPassThruProtocolGuid, (VOID **) &NvmePassthru);
ASSERT_EFI_ERROR (Status);
ZeroMem (&CommandPacket, sizeof(EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET));
ZeroMem (&Command, sizeof(EFI_NVM_EXPRESS_COMMAND));
ZeroMem (&Completion, sizeof(EFI_NVM_EXPRESS_COMPLETION));
Command.Cdw0.Opcode = NVME_ADMIN_IDENTIFY_CMD;
//
// According to Nvm Express 1.1 spec Figure 38, When not used, the field shall be cleared to 0h.
// For the Identify command, the Namespace Identifier is only used for the Namespace data structure.
//
Command.Nsid = 0;
CommandPacket.NvmeCmd = &Command;
CommandPacket.NvmeCompletion = &Completion;
CommandPacket.TransferBuffer = &ControllerData;
CommandPacket.TransferLength = sizeof (ControllerData);
CommandPacket.CommandTimeout = EFI_TIMER_PERIOD_SECONDS (5);
CommandPacket.QueueType = NVME_ADMIN_QUEUE;
//
// Set bit 0 (Cns bit) to 1 to identify a controller
//
Command.Cdw10 = 1;
Command.Flags = CDW10_VALID;
Status = NvmePassthru->PassThru (
NvmePassthru,
0,
&CommandPacket,
NULL
);
if (EFI_ERROR (Status)) {
return NULL;
}
Description = AllocateZeroPool (
(ARRAY_SIZE (ControllerData.Mn) + 1
+ ARRAY_SIZE (ControllerData.Sn) + 1
+ MAXIMUM_VALUE_CHARACTERS + 1
) * sizeof (CHAR16));
if (Description != NULL) {
Char = Description;
for (Index = 0; Index < ARRAY_SIZE (ControllerData.Mn); Index++) {
*(Char++) = (CHAR16) ControllerData.Mn[Index];
}
*(Char++) = L' ';
for (Index = 0; Index < ARRAY_SIZE (ControllerData.Sn); Index++) {
*(Char++) = (CHAR16) ControllerData.Sn[Index];
}
*(Char++) = L' ';
UnicodeValueToStringS (
Char, sizeof (CHAR16) * (MAXIMUM_VALUE_CHARACTERS + 1),
0, DevicePath.NvmeNamespace->NamespaceId, 0
);
BmEliminateExtraSpaces (Description);
}
return Description;
}
/**
Return the boot description for the controller based on the type.
@param Handle Controller handle.
@return The description string.
**/
CHAR16 *
BmGetMiscDescription (
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
CHAR16 *Description;
EFI_BLOCK_IO_PROTOCOL *BlockIo;
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Fs;
switch (BmDevicePathType (DevicePathFromHandle (Handle))) {
case BmAcpiFloppyBoot:
Description = L"Floppy";
break;
case BmMessageAtapiBoot:
case BmMessageSataBoot:
Status = gBS->HandleProtocol (Handle, &gEfiBlockIoProtocolGuid, (VOID **) &BlockIo);
ASSERT_EFI_ERROR (Status);
//
// Assume a removable SATA device should be the DVD/CD device
//
Description = BlockIo->Media->RemovableMedia ? L"DVD/CDROM" : L"Hard Drive";
break;
case BmMessageUsbBoot:
Description = L"USB Device";
break;
case BmMessageScsiBoot:
Description = L"SCSI Device";
break;
case BmHardwareDeviceBoot:
Status = gBS->HandleProtocol (Handle, &gEfiBlockIoProtocolGuid, (VOID **) &BlockIo);
if (!EFI_ERROR (Status)) {
Description = BlockIo->Media->RemovableMedia ? L"Removable Disk" : L"Hard Drive";
} else {
Description = L"Misc Device";
}
break;
default:
Status = gBS->HandleProtocol (Handle, &gEfiSimpleFileSystemProtocolGuid, (VOID **) &Fs);
if (!EFI_ERROR (Status)) {
Description = L"Non-Block Boot Device";
} else {
Description = L"Misc Device";
}
break;
}
return AllocateCopyPool (StrSize (Description), Description);
}
/**
Register the platform provided boot description handler.
@param Handler The platform provided boot description handler
@retval EFI_SUCCESS The handler was registered successfully.
@retval EFI_ALREADY_STARTED The handler was already registered.
@retval EFI_OUT_OF_RESOURCES There is not enough resource to perform the registration.
**/
EFI_STATUS
EFIAPI
EfiBootManagerRegisterBootDescriptionHandler (
IN EFI_BOOT_MANAGER_BOOT_DESCRIPTION_HANDLER Handler
)
{
LIST_ENTRY *Link;
BM_BOOT_DESCRIPTION_ENTRY *Entry;
for ( Link = GetFirstNode (&mPlatformBootDescriptionHandlers)
; !IsNull (&mPlatformBootDescriptionHandlers, Link)
; Link = GetNextNode (&mPlatformBootDescriptionHandlers, Link)
) {
Entry = CR (Link, BM_BOOT_DESCRIPTION_ENTRY, Link, BM_BOOT_DESCRIPTION_ENTRY_SIGNATURE);
if (Entry->Handler == Handler) {
return EFI_ALREADY_STARTED;
}
}
Entry = AllocatePool (sizeof (BM_BOOT_DESCRIPTION_ENTRY));
if (Entry == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Entry->Signature = BM_BOOT_DESCRIPTION_ENTRY_SIGNATURE;
Entry->Handler = Handler;
InsertTailList (&mPlatformBootDescriptionHandlers, &Entry->Link);
return EFI_SUCCESS;
}
BM_GET_BOOT_DESCRIPTION mBmBootDescriptionHandlers[] = {
BmGetUsbDescription,
BmGetDescriptionFromDiskInfo,
BmGetNetworkDescription,
BmGetLoadFileDescription,
BmGetNvmeDescription,
BmGetMiscDescription
};
/**
Return the boot description for the controller.
@param Handle Controller handle.
@return The description string.
**/
CHAR16 *
BmGetBootDescription (
IN EFI_HANDLE Handle
)
{
LIST_ENTRY *Link;
BM_BOOT_DESCRIPTION_ENTRY *Entry;
CHAR16 *Description;
CHAR16 *DefaultDescription;
CHAR16 *Temp;
UINTN Index;
//
// Firstly get the default boot description
//
DefaultDescription = NULL;
for (Index = 0; Index < ARRAY_SIZE (mBmBootDescriptionHandlers); Index++) {
DefaultDescription = mBmBootDescriptionHandlers[Index] (Handle);
if (DefaultDescription != NULL) {
//
// Avoid description confusion between UEFI & Legacy boot option by adding "UEFI " prefix
// ONLY for core provided boot description handler.
//
Temp = AllocatePool (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix));
ASSERT (Temp != NULL);
StrCpyS (Temp, (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix)) / sizeof (CHAR16), mBmUefiPrefix);
StrCatS (Temp, (StrSize (DefaultDescription) + sizeof (mBmUefiPrefix)) / sizeof (CHAR16), DefaultDescription);
FreePool (DefaultDescription);
DefaultDescription = Temp;
break;
}
}
ASSERT (DefaultDescription != NULL);
//
// Secondly query platform for the better boot description
//
for ( Link = GetFirstNode (&mPlatformBootDescriptionHandlers)
; !IsNull (&mPlatformBootDescriptionHandlers, Link)
; Link = GetNextNode (&mPlatformBootDescriptionHandlers, Link)
) {
Entry = CR (Link, BM_BOOT_DESCRIPTION_ENTRY, Link, BM_BOOT_DESCRIPTION_ENTRY_SIGNATURE);
Description = Entry->Handler (Handle, DefaultDescription);
if (Description != NULL) {
FreePool (DefaultDescription);
return Description;
}
}
return DefaultDescription;
}
/**
Enumerate all boot option descriptions and append " 2"/" 3"/... to make
unique description.
@param BootOptions Array of boot options.
@param BootOptionCount Count of boot options.
**/
VOID
BmMakeBootOptionDescriptionUnique (
EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions,
UINTN BootOptionCount
)
{
UINTN Base;
UINTN Index;
UINTN DescriptionSize;
UINTN MaxSuffixSize;
BOOLEAN *Visited;
UINTN MatchCount;
if (BootOptionCount == 0) {
return;
}
//
// Calculate the maximum buffer size for the number suffix.
// The initial sizeof (CHAR16) is for the blank space before the number.
//
MaxSuffixSize = sizeof (CHAR16);
for (Index = BootOptionCount; Index != 0; Index = Index / 10) {
MaxSuffixSize += sizeof (CHAR16);
}
Visited = AllocateZeroPool (sizeof (BOOLEAN) * BootOptionCount);
ASSERT (Visited != NULL);
for (Base = 0; Base < BootOptionCount; Base++) {
if (!Visited[Base]) {
MatchCount = 1;
Visited[Base] = TRUE;
DescriptionSize = StrSize (BootOptions[Base].Description);
for (Index = Base + 1; Index < BootOptionCount; Index++) {
if (!Visited[Index] && StrCmp (BootOptions[Base].Description, BootOptions[Index].Description) == 0) {
Visited[Index] = TRUE;
MatchCount++;
FreePool (BootOptions[Index].Description);
BootOptions[Index].Description = AllocatePool (DescriptionSize + MaxSuffixSize);
UnicodeSPrint (
BootOptions[Index].Description, DescriptionSize + MaxSuffixSize,
L"%s %d",
BootOptions[Base].Description, MatchCount
);
}
}
}
}
FreePool (Visited);
}
Reference in New Issue View Git Blame Copy Permalink