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92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/** @file
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List available partitions on the system.
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Copyright (c) 2021-2023, Mikhail Krichanov. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi.h>
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#include <Library/UefiLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/OcMemoryLib.h>
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#include <Library/OcFileLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiApplicationEntryPoint.h>
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#include <Protocol/BlockIo.h>
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EFI_STATUS
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EFIAPI
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UefiMain (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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UINTN Index;
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UINTN HandleCount;
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EFI_HANDLE *Handles;
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EFI_BLOCK_IO_PROTOCOL *BlkIo;
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CONST EFI_PARTITION_ENTRY *PartitionEntry;
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//
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// Find HardDrive
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//
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Status = gBS->LocateHandleBuffer (
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ByProtocol,
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&gEfiBlockIoProtocolGuid,
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NULL,
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&HandleCount,
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&Handles
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);
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if (EFI_ERROR (Status)) {
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DEBUG ((DEBUG_WARN, "Failed to find any partitions - %r\n", Status));
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return Status;
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}
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for (Index = 0; Index < HandleCount; ++Index) {
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Status = gBS->HandleProtocol (
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Handles[Index],
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&gEfiBlockIoProtocolGuid,
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(VOID **)&BlkIo
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);
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if (EFI_ERROR (Status)) {
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DEBUG ((DEBUG_WARN, "Partition #%u is unavailable - %r\n", (UINT32)(Index + 1), Status));
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continue;
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}
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if (!BlkIo->Media->LogicalPartition) {
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DEBUG ((DEBUG_WARN, "Partition #%u is not a logical partition\n", (UINT32)(Index + 1)));
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continue;
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}
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PartitionEntry = OcGetGptPartitionEntry (Handles[Index]);
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if (PartitionEntry == NULL) {
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DEBUG ((DEBUG_WARN, "Partition #%u GPT entry is not accessible\n", (UINT32)(Index + 1)));
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continue;
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}
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if (IsZeroGuid (&PartitionEntry->UniquePartitionGUID)) {
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DEBUG ((DEBUG_WARN, "Partition #%u GPT entry has all-zero GUID\n", (UINT32)(Index + 1)));
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continue;
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}
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DEBUG ((DEBUG_WARN, "Partition #%u details:\n", (UINT32)(Index + 1)));
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DEBUG ((DEBUG_WARN, " PartitionName : %-36s\n", PartitionEntry->PartitionName));
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DEBUG ((DEBUG_WARN, " PartitionTypeGUID : %g\n", &PartitionEntry->PartitionTypeGUID));
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DEBUG ((DEBUG_WARN, " UniquePartitionGUID: %g\n", &PartitionEntry->UniquePartitionGUID));
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}
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FreePool (Handles);
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return EFI_SUCCESS;
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}
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