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Ventoy/EDK2/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c
longpanda d5b829f8e8 1.0.07 release
2020-04-24 21:58:07 +08:00

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/******************************************************************************
* Ventoy.c
*
* Copyright (c) 2020, longpanda <admin@ventoy.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include <Uefi.h>
#include <Library/DebugLib.h>
#include <Library/PrintLib.h>
#include <Library/UefiLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/UefiApplicationEntryPoint.h>
#include <Protocol/LoadedImage.h>
#include <Guid/FileInfo.h>
#include <Guid/FileSystemInfo.h>
#include <Protocol/BlockIo.h>
#include <Protocol/RamDisk.h>
#include <Protocol/SimpleFileSystem.h>
#include <Ventoy.h>
UINTN g_iso_buf_size = 0;
BOOLEAN gMemdiskMode = FALSE;
BOOLEAN gDebugPrint = FALSE;
BOOLEAN gLoadIsoEfi = FALSE;
ventoy_ram_disk g_ramdisk_param;
ventoy_chain_head *g_chain;
ventoy_img_chunk *g_chunk;
UINT32 g_img_chunk_num;
ventoy_override_chunk *g_override_chunk;
UINT32 g_override_chunk_num;
ventoy_virt_chunk *g_virt_chunk;
UINT32 g_virt_chunk_num;
vtoy_block_data gBlockData;
ventoy_sector_flag *g_sector_flag = NULL;
UINT32 g_sector_flag_num = 0;
static grub_env_get_pf grub_env_get = NULL;
EFI_FILE_OPEN g_original_fopen = NULL;
EFI_FILE_CLOSE g_original_fclose = NULL;
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_OPEN_VOLUME g_original_open_volume = NULL;
ventoy_grub_param_file_replace *g_file_replace_list = NULL;
ventoy_efi_file_replace g_efi_file_replace;
CHAR16 gFirstTryBootFile[256] = {0};
CONST CHAR16 gIso9660EfiDriverPath[] = ISO9660_EFI_DRIVER_PATH;
/* Boot filename */
UINTN gBootFileStartIndex = 1;
CONST CHAR16 *gEfiBootFileName[] =
{
L"@",
EFI_REMOVABLE_MEDIA_FILE_NAME,
L"\\EFI\\BOOT\\GRUBX64.EFI",
L"\\EFI\\BOOT\\BOOTx64.EFI",
L"\\EFI\\BOOT\\bootx64.efi",
L"\\efi\\boot\\bootx64.efi",
};
/* EFI block device vendor device path GUID */
EFI_GUID gVtoyBlockDevicePathGuid = VTOY_BLOCK_DEVICE_PATH_GUID;
VOID EFIAPI VtoyDebug(IN CONST CHAR8 *Format, ...)
{
VA_LIST Marker;
CHAR16 Buffer[512];
VA_START (Marker, Format);
UnicodeVSPrintAsciiFormat(Buffer, sizeof(Buffer), Format, Marker);
VA_END (Marker);
gST->ConOut->OutputString(gST->ConOut, Buffer);
}
VOID EFIAPI ventoy_clear_input(VOID)
{
EFI_INPUT_KEY Key;
gST->ConIn->Reset(gST->ConIn, FALSE);
while (EFI_SUCCESS == gST->ConIn->ReadKeyStroke(gST->ConIn, &Key))
{
;
}
gST->ConIn->Reset(gST->ConIn, FALSE);
}
static void EFIAPI ventoy_dump_img_chunk(ventoy_chain_head *chain)
{
UINT32 i;
int errcnt = 0;
UINT64 img_sec = 0;
ventoy_img_chunk *chunk;
chunk = (ventoy_img_chunk *)((char *)chain + chain->img_chunk_offset);
debug("##################### ventoy_dump_img_chunk #######################");
for (i = 0; i < chain->img_chunk_num; i++)
{
debug("%2u: [ %u - %u ] <==> [ %llu - %llu ]",
i, chunk[i].img_start_sector, chunk[i].img_end_sector,
chunk[i].disk_start_sector, chunk[i].disk_end_sector);
if (i > 0 && (chunk[i].img_start_sector != chunk[i - 1].img_end_sector + 1))
{
errcnt++;
}
img_sec += chunk[i].img_end_sector - chunk[i].img_start_sector + 1;
}
if (errcnt == 0 && (img_sec * 2048 == g_chain->real_img_size_in_bytes))
{
debug("image chunk size check success");
}
else
{
debug("image chunk size check failed %d", errcnt);
}
ventoy_debug_pause();
}
static void EFIAPI ventoy_dump_override_chunk(ventoy_chain_head *chain)
{
UINT32 i;
ventoy_override_chunk *chunk;
chunk = (ventoy_override_chunk *)((char *)chain + chain->override_chunk_offset);
debug("##################### ventoy_dump_override_chunk #######################");
for (i = 0; i < g_override_chunk_num; i++)
{
debug("%2u: [ %llu, %u ]", i, chunk[i].img_offset, chunk[i].override_size);
}
ventoy_debug_pause();
}
static void EFIAPI ventoy_dump_virt_chunk(ventoy_chain_head *chain)
{
UINT32 i;
ventoy_virt_chunk *node;
debug("##################### ventoy_dump_virt_chunk #######################");
debug("virt_chunk_offset=%u", chain->virt_chunk_offset);
debug("virt_chunk_num=%u", chain->virt_chunk_num);
node = (ventoy_virt_chunk *)((char *)chain + chain->virt_chunk_offset);
for (i = 0; i < chain->virt_chunk_num; i++, node++)
{
debug("%2u: mem:[ %u, %u, %u ] remap:[ %u, %u, %u ]", i,
node->mem_sector_start,
node->mem_sector_end,
node->mem_sector_offset,
node->remap_sector_start,
node->remap_sector_end,
node->org_sector_start);
}
ventoy_debug_pause();
}
static void EFIAPI ventoy_dump_chain(ventoy_chain_head *chain)
{
UINT32 i = 0;
UINT8 chksum = 0;
UINT8 *guid;
guid = chain->os_param.vtoy_disk_guid;
for (i = 0; i < sizeof(ventoy_os_param); i++)
{
chksum += *((UINT8 *)(&(chain->os_param)) + i);
}
debug("##################### ventoy_dump_chain #######################");
debug("os_param->chksum=0x%x (%a)", chain->os_param.chksum, chksum ? "FAILED" : "SUCCESS");
debug("os_param->vtoy_disk_guid=%02x%02x%02x%02x", guid[0], guid[1], guid[2], guid[3]);
debug("os_param->vtoy_disk_size=%llu", chain->os_param.vtoy_disk_size);
debug("os_param->vtoy_disk_part_id=%u", chain->os_param.vtoy_disk_part_id);
debug("os_param->vtoy_disk_part_type=%u", chain->os_param.vtoy_disk_part_type);
debug("os_param->vtoy_img_path=<%a>", chain->os_param.vtoy_img_path);
debug("os_param->vtoy_img_size=<%llu>", chain->os_param.vtoy_img_size);
debug("os_param->vtoy_img_location_addr=<0x%llx>", chain->os_param.vtoy_img_location_addr);
debug("os_param->vtoy_img_location_len=<%u>", chain->os_param.vtoy_img_location_len);
ventoy_debug_pause();
debug("chain->disk_drive=0x%x", chain->disk_drive);
debug("chain->disk_sector_size=%u", chain->disk_sector_size);
debug("chain->real_img_size_in_bytes=%llu", chain->real_img_size_in_bytes);
debug("chain->virt_img_size_in_bytes=%llu", chain->virt_img_size_in_bytes);
debug("chain->boot_catalog=%u", chain->boot_catalog);
debug("chain->img_chunk_offset=%u", chain->img_chunk_offset);
debug("chain->img_chunk_num=%u", chain->img_chunk_num);
debug("chain->override_chunk_offset=%u", chain->override_chunk_offset);
debug("chain->override_chunk_num=%u", chain->override_chunk_num);
ventoy_debug_pause();
ventoy_dump_img_chunk(chain);
ventoy_dump_override_chunk(chain);
ventoy_dump_virt_chunk(chain);
}
EFI_HANDLE EFIAPI ventoy_get_parent_handle(IN EFI_DEVICE_PATH_PROTOCOL *pDevPath)
{
EFI_HANDLE Handle = NULL;
EFI_STATUS Status = EFI_SUCCESS;
EFI_DEVICE_PATH_PROTOCOL *pLastNode = NULL;
EFI_DEVICE_PATH_PROTOCOL *pCurNode = NULL;
EFI_DEVICE_PATH_PROTOCOL *pTmpDevPath = NULL;
pTmpDevPath = DuplicateDevicePath(pDevPath);
if (!pTmpDevPath)
{
return NULL;
}
pCurNode = pTmpDevPath;
while (!IsDevicePathEnd(pCurNode))
{
pLastNode = pCurNode;
pCurNode = NextDevicePathNode(pCurNode);
}
if (pLastNode)
{
CopyMem(pLastNode, pCurNode, sizeof(EFI_DEVICE_PATH_PROTOCOL));
}
pCurNode = pTmpDevPath;
Status = gBS->LocateDevicePath(&gEfiDevicePathProtocolGuid, &pCurNode, &Handle);
debug("Status:%r Parent Handle:%p DP:%s", Status, Handle, ConvertDevicePathToText(pTmpDevPath, FALSE, FALSE));
FreePool(pTmpDevPath);
return Handle;
}
EFI_STATUS EFIAPI ventoy_block_io_reset
(
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
(VOID)This;
(VOID)ExtendedVerification;
return EFI_SUCCESS;
}
STATIC EFI_STATUS EFIAPI ventoy_read_iso_sector
(
IN UINT64 Sector,
IN UINTN Count,
OUT VOID *Buffer
)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_LBA MapLba = 0;
UINT32 i = 0;
UINTN secLeft = 0;
UINTN secRead = 0;
UINT64 ReadStart = 0;
UINT64 ReadEnd = 0;
UINT64 OverrideStart = 0;
UINT64 OverrideEnd= 0;
UINT8 *pCurBuf = (UINT8 *)Buffer;
ventoy_img_chunk *pchunk = g_chunk;
ventoy_override_chunk *pOverride = g_override_chunk;
EFI_BLOCK_IO_PROTOCOL *pRawBlockIo = gBlockData.pRawBlockIo;
debug("read iso sector %lu count %u", Sector, Count);
ReadStart = Sector * 2048;
ReadEnd = (Sector + Count) * 2048;
for (i = 0; Count > 0 && i < g_img_chunk_num; i++, pchunk++)
{
if (Sector >= pchunk->img_start_sector && Sector <= pchunk->img_end_sector)
{
if (g_chain->disk_sector_size == 512)
{
MapLba = (Sector - pchunk->img_start_sector) * 4 + pchunk->disk_start_sector;
}
else
{
MapLba = (Sector - pchunk->img_start_sector) * 2048 / g_chain->disk_sector_size + pchunk->disk_start_sector;
}
secLeft = pchunk->img_end_sector + 1 - Sector;
secRead = (Count < secLeft) ? Count : secLeft;
Status = pRawBlockIo->ReadBlocks(pRawBlockIo, pRawBlockIo->Media->MediaId,
MapLba, secRead * 2048, pCurBuf);
if (EFI_ERROR(Status))
{
debug("Raw disk read block failed %r", Status);
return Status;
}
Count -= secRead;
Sector += secRead;
pCurBuf += secRead * 2048;
}
}
if (ReadStart > g_chain->real_img_size_in_bytes)
{
return EFI_SUCCESS;
}
/* override data */
pCurBuf = (UINT8 *)Buffer;
for (i = 0; i < g_override_chunk_num; i++, pOverride++)
{
OverrideStart = pOverride->img_offset;
OverrideEnd = pOverride->img_offset + pOverride->override_size;
if (OverrideStart >= ReadEnd || ReadStart >= OverrideEnd)
{
continue;
}
if (ReadStart <= OverrideStart)
{
if (ReadEnd <= OverrideEnd)
{
CopyMem(pCurBuf + OverrideStart - ReadStart, pOverride->override_data, ReadEnd - OverrideStart);
}
else
{
CopyMem(pCurBuf + OverrideStart - ReadStart, pOverride->override_data, pOverride->override_size);
}
}
else
{
if (ReadEnd <= OverrideEnd)
{
CopyMem(pCurBuf, pOverride->override_data + ReadStart - OverrideStart, ReadEnd - ReadStart);
}
else
{
CopyMem(pCurBuf, pOverride->override_data + ReadStart - OverrideStart, OverrideEnd - ReadStart);
}
}
}
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_block_io_ramdisk_read
(
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
OUT VOID *Buffer
)
{
//debug("### ventoy_block_io_ramdisk_read sector:%u count:%u", (UINT32)Lba, (UINT32)BufferSize / 2048);
(VOID)This;
(VOID)MediaId;
CopyMem(Buffer, (char *)g_chain + (Lba * 2048), BufferSize);
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_block_io_read
(
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
OUT VOID *Buffer
)
{
UINT32 i = 0;
UINT32 j = 0;
UINT32 lbacount = 0;
UINT32 secNum = 0;
UINT64 offset = 0;
EFI_LBA curlba = 0;
EFI_LBA lastlba = 0;
UINT8 *lastbuffer;
ventoy_sector_flag *cur_flag;
ventoy_virt_chunk *node;
//debug("### ventoy_block_io_read sector:%u count:%u", (UINT32)Lba, (UINT32)BufferSize / 2048);
secNum = BufferSize / 2048;
offset = Lba * 2048;
if (offset + BufferSize < g_chain->real_img_size_in_bytes)
{
return ventoy_read_iso_sector(Lba, secNum, Buffer);
}
if (secNum > g_sector_flag_num)
{
cur_flag = AllocatePool(secNum * sizeof(ventoy_sector_flag));
if (NULL == cur_flag)
{
return EFI_OUT_OF_RESOURCES;
}
FreePool(g_sector_flag);
g_sector_flag = cur_flag;
g_sector_flag_num = secNum;
}
for (curlba = Lba, cur_flag = g_sector_flag, j = 0; j < secNum; j++, curlba++, cur_flag++)
{
cur_flag->flag = 0;
for (node = g_virt_chunk, i = 0; i < g_virt_chunk_num; i++, node++)
{
if (curlba >= node->mem_sector_start && curlba < node->mem_sector_end)
{
CopyMem((UINT8 *)Buffer + j * 2048,
(char *)g_virt_chunk + node->mem_sector_offset + (curlba - node->mem_sector_start) * 2048,
2048);
cur_flag->flag = 1;
break;
}
else if (curlba >= node->remap_sector_start && curlba < node->remap_sector_end)
{
cur_flag->remap_lba = node->org_sector_start + curlba - node->remap_sector_start;
cur_flag->flag = 2;
break;
}
}
}
for (curlba = Lba, cur_flag = g_sector_flag, j = 0; j < secNum; j++, curlba++, cur_flag++)
{
if (cur_flag->flag == 2)
{
if (lastlba == 0)
{
lastbuffer = (UINT8 *)Buffer + j * 2048;
lastlba = cur_flag->remap_lba;
lbacount = 1;
}
else if (lastlba + lbacount == cur_flag->remap_lba)
{
lbacount++;
}
else
{
ventoy_read_iso_sector(lastlba, lbacount, lastbuffer);
lastbuffer = (UINT8 *)Buffer + j * 2048;
lastlba = cur_flag->remap_lba;
lbacount = 1;
}
}
}
if (lbacount > 0)
{
ventoy_read_iso_sector(lastlba, lbacount, lastbuffer);
}
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_block_io_write
(
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
IN VOID *Buffer
)
{
(VOID)This;
(VOID)MediaId;
(VOID)Lba;
(VOID)BufferSize;
(VOID)Buffer;
return EFI_WRITE_PROTECTED;
}
EFI_STATUS EFIAPI ventoy_block_io_flush(IN EFI_BLOCK_IO_PROTOCOL *This)
{
(VOID)This;
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_fill_device_path(VOID)
{
UINTN NameLen = 0;
UINT8 TmpBuf[128] = {0};
VENDOR_DEVICE_PATH *venPath = NULL;
venPath = (VENDOR_DEVICE_PATH *)TmpBuf;
NameLen = StrSize(VTOY_BLOCK_DEVICE_PATH_NAME);
venPath->Header.Type = HARDWARE_DEVICE_PATH;
venPath->Header.SubType = HW_VENDOR_DP;
venPath->Header.Length[0] = sizeof(VENDOR_DEVICE_PATH) + NameLen;
venPath->Header.Length[1] = 0;
CopyMem(&venPath->Guid, &gVtoyBlockDevicePathGuid, sizeof(EFI_GUID));
CopyMem(venPath + 1, VTOY_BLOCK_DEVICE_PATH_NAME, NameLen);
gBlockData.Path = AppendDevicePathNode(NULL, (EFI_DEVICE_PATH_PROTOCOL *)TmpBuf);
gBlockData.DevicePathCompareLen = sizeof(VENDOR_DEVICE_PATH) + NameLen;
debug("gBlockData.Path=<%s>\n", ConvertDevicePathToText(gBlockData.Path, FALSE, FALSE));
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_save_ramdisk_param(VOID)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_GUID VarGuid = VENTOY_GUID;
Status = gRT->SetVariable(L"VentoyRamDisk", &VarGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(g_ramdisk_param), &(g_ramdisk_param));
debug("set efi variable %r", Status);
return Status;
}
EFI_STATUS EFIAPI ventoy_del_ramdisk_param(VOID)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_GUID VarGuid = VENTOY_GUID;
Status = gRT->SetVariable(L"VentoyRamDisk", &VarGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
debug("delete efi variable %r", Status);
return Status;
}
EFI_STATUS EFIAPI ventoy_set_variable(VOID)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_GUID VarGuid = VENTOY_GUID;
Status = gRT->SetVariable(L"VentoyOsParam", &VarGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(g_chain->os_param), &(g_chain->os_param));
debug("set efi variable %r", Status);
return Status;
}
EFI_STATUS EFIAPI ventoy_delete_variable(VOID)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_GUID VarGuid = VENTOY_GUID;
Status = gRT->SetVariable(L"VentoyOsParam", &VarGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
debug("delete efi variable %r", Status);
return Status;
}
EFI_STATUS EFIAPI ventoy_install_blockio(IN EFI_HANDLE ImageHandle, IN UINT64 ImgSize)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_BLOCK_IO_PROTOCOL *pBlockIo = &(gBlockData.BlockIo);
ventoy_fill_device_path();
gBlockData.Media.BlockSize = 2048;
gBlockData.Media.LastBlock = ImgSize / 2048 - 1;
gBlockData.Media.ReadOnly = TRUE;
gBlockData.Media.MediaPresent = 1;
gBlockData.Media.LogicalBlocksPerPhysicalBlock = 1;
pBlockIo->Revision = EFI_BLOCK_IO_PROTOCOL_REVISION3;
pBlockIo->Media = &(gBlockData.Media);
pBlockIo->Reset = ventoy_block_io_reset;
if (gMemdiskMode)
{
pBlockIo->ReadBlocks = ventoy_block_io_ramdisk_read;
}
else
{
pBlockIo->ReadBlocks = ventoy_block_io_read;
}
pBlockIo->WriteBlocks = ventoy_block_io_write;
pBlockIo->FlushBlocks = ventoy_block_io_flush;
Status = gBS->InstallMultipleProtocolInterfaces(&gBlockData.Handle,
&gEfiBlockIoProtocolGuid, &gBlockData.BlockIo,
&gEfiDevicePathProtocolGuid, gBlockData.Path,
NULL);
debug("Install protocol %r", Status);
if (EFI_ERROR(Status))
{
return Status;
}
Status = gBS->ConnectController(gBlockData.Handle, NULL, NULL, 1);
debug("Connect controller %r", Status);
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_load_image
(
IN EFI_HANDLE ImageHandle,
IN EFI_DEVICE_PATH_PROTOCOL *pDevicePath,
IN CONST CHAR16 *FileName,
IN UINTN FileNameLen,
OUT EFI_HANDLE *Image
)
{
EFI_STATUS Status = EFI_SUCCESS;
CHAR16 TmpBuf[256] = {0};
FILEPATH_DEVICE_PATH *pFilePath = NULL;
EFI_DEVICE_PATH_PROTOCOL *pImgPath = NULL;
pFilePath = (FILEPATH_DEVICE_PATH *)TmpBuf;
pFilePath->Header.Type = MEDIA_DEVICE_PATH;
pFilePath->Header.SubType = MEDIA_FILEPATH_DP;
pFilePath->Header.Length[0] = FileNameLen + sizeof(EFI_DEVICE_PATH_PROTOCOL);
pFilePath->Header.Length[1] = 0;
CopyMem(pFilePath->PathName, FileName, FileNameLen);
pImgPath = AppendDevicePathNode(pDevicePath, (EFI_DEVICE_PATH_PROTOCOL *)pFilePath);
if (!pImgPath)
{
return EFI_NOT_FOUND;
}
Status = gBS->LoadImage(FALSE, ImageHandle, pImgPath, NULL, 0, Image);
debug("Load Image File %r DP: <%s>", Status, ConvertDevicePathToText(pImgPath, FALSE, FALSE));
FreePool(pImgPath);
return Status;
}
STATIC EFI_STATUS EFIAPI ventoy_find_iso_disk(IN EFI_HANDLE ImageHandle)
{
UINTN i = 0;
UINTN Count = 0;
UINT64 DiskSize = 0;
UINT8 *pBuffer = NULL;
EFI_HANDLE *Handles;
EFI_STATUS Status = EFI_SUCCESS;
EFI_BLOCK_IO_PROTOCOL *pBlockIo;
pBuffer = AllocatePool(2048);
if (!pBuffer)
{
return EFI_OUT_OF_RESOURCES;
}
Status = gBS->LocateHandleBuffer(ByProtocol, &gEfiBlockIoProtocolGuid,
NULL, &Count, &Handles);
if (EFI_ERROR(Status))
{
FreePool(pBuffer);
return Status;
}
for (i = 0; i < Count; i++)
{
Status = gBS->HandleProtocol(Handles[i], &gEfiBlockIoProtocolGuid, (VOID **)&pBlockIo);
if (EFI_ERROR(Status))
{
continue;
}
DiskSize = (pBlockIo->Media->LastBlock + 1) * pBlockIo->Media->BlockSize;
debug("This Disk size: %llu", DiskSize);
if (g_chain->os_param.vtoy_disk_size != DiskSize)
{
continue;
}
Status = pBlockIo->ReadBlocks(pBlockIo, pBlockIo->Media->MediaId, 0, 512, pBuffer);
if (EFI_ERROR(Status))
{
debug("ReadBlocks filed %r", Status);
continue;
}
if (CompareMem(g_chain->os_param.vtoy_disk_guid, pBuffer + 0x180, 16) == 0)
{
gBlockData.RawBlockIoHandle = Handles[i];
gBlockData.pRawBlockIo = pBlockIo;
gBS->OpenProtocol(Handles[i], &gEfiDevicePathProtocolGuid,
(VOID **)&(gBlockData.pDiskDevPath),
ImageHandle,
Handles[i],
EFI_OPEN_PROTOCOL_GET_PROTOCOL);
debug("Find Ventoy Disk Handle:%p DP:%s", Handles[i],
ConvertDevicePathToText(gBlockData.pDiskDevPath, FALSE, FALSE));
break;
}
}
FreePool(Handles);
if (i >= Count)
{
return EFI_NOT_FOUND;
}
else
{
return EFI_SUCCESS;
}
}
STATIC EFI_STATUS EFIAPI ventoy_find_iso_disk_fs(IN EFI_HANDLE ImageHandle)
{
UINTN i = 0;
UINTN Count = 0;
EFI_HANDLE Parent = NULL;
EFI_HANDLE *Handles = NULL;
EFI_STATUS Status = EFI_SUCCESS;
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *pFile = NULL;
EFI_DEVICE_PATH_PROTOCOL *pDevPath = NULL;
Status = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid,
NULL, &Count, &Handles);
if (EFI_ERROR(Status))
{
return Status;
}
debug("ventoy_find_iso_disk_fs fs count:%u", Count);
for (i = 0; i < Count; i++)
{
Status = gBS->HandleProtocol(Handles[i], &gEfiSimpleFileSystemProtocolGuid, (VOID **)&pFile);
if (EFI_ERROR(Status))
{
continue;
}
Status = gBS->OpenProtocol(Handles[i], &gEfiDevicePathProtocolGuid,
(VOID **)&pDevPath,
ImageHandle,
Handles[i],
EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (EFI_ERROR(Status))
{
debug("Failed to open device path protocol %r", Status);
continue;
}
debug("Handle:%p FS DP: <%s>", Handles[i], ConvertDevicePathToText(pDevPath, FALSE, FALSE));
Parent = ventoy_get_parent_handle(pDevPath);
if (Parent == gBlockData.RawBlockIoHandle)
{
debug("Find ventoy disk fs");
gBlockData.DiskFsHandle = Handles[i];
gBlockData.pDiskFs = pFile;
gBlockData.pDiskFsDevPath = pDevPath;
break;
}
}
FreePool(Handles);
return EFI_SUCCESS;
}
STATIC EFI_STATUS EFIAPI ventoy_load_isoefi_driver(IN EFI_HANDLE ImageHandle)
{
EFI_HANDLE Image = NULL;
EFI_STATUS Status = EFI_SUCCESS;
CHAR16 LogVar[4] = L"5";
Status = ventoy_load_image(ImageHandle, gBlockData.pDiskFsDevPath,
gIso9660EfiDriverPath,
sizeof(gIso9660EfiDriverPath),
&Image);
debug("load iso efi driver status:%r", Status);
if (gDebugPrint)
{
gRT->SetVariable(L"FS_LOGGING", &gShellVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(LogVar), LogVar);
}
gRT->SetVariable(L"FS_NAME_NOCASE", &gShellVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(LogVar), LogVar);
gBlockData.IsoDriverImage = Image;
Status = gBS->StartImage(Image, NULL, NULL);
debug("Start iso efi driver status:%r", Status);
return EFI_SUCCESS;
}
static int ventoy_update_image_location(ventoy_os_param *param)
{
EFI_STATUS Status = EFI_SUCCESS;
UINT8 chksum = 0;
unsigned int i;
unsigned int length;
UINTN address = 0;
void *buffer = NULL;
ventoy_image_location *location = NULL;
ventoy_image_disk_region *region = NULL;
ventoy_img_chunk *chunk = g_chunk;
length = sizeof(ventoy_image_location) + (g_img_chunk_num - 1) * sizeof(ventoy_image_disk_region);
Status = gBS->AllocatePool(EfiRuntimeServicesData, length + 4096 * 2, &buffer);
if (EFI_ERROR(Status) || NULL == buffer)
{
debug("Failed to allocate runtime pool %r\n", Status);
return 1;
}
address = (UINTN)buffer;
if (address % 4096)
{
address += 4096 - (address % 4096);
}
param->chksum = 0;
param->vtoy_img_location_addr = address;
param->vtoy_img_location_len = length;
/* update check sum */
for (i = 0; i < sizeof(ventoy_os_param); i++)
{
chksum += *((UINT8 *)param + i);
}
param->chksum = (chksum == 0) ? 0 : (UINT8)(0x100 - chksum);
location = (ventoy_image_location *)(unsigned long)(param->vtoy_img_location_addr);
if (NULL == location)
{
return 0;
}
CopyMem(&location->guid, &param->guid, sizeof(ventoy_guid));
location->image_sector_size = 2048;
location->disk_sector_size = g_chain->disk_sector_size;
location->region_count = g_img_chunk_num;
region = location->regions;
for (i = 0; i < g_img_chunk_num; i++)
{
region->image_sector_count = chunk->img_end_sector - chunk->img_start_sector + 1;
region->image_start_sector = chunk->img_start_sector;
region->disk_start_sector = chunk->disk_start_sector;
region++;
chunk++;
}
return 0;
}
STATIC EFI_STATUS EFIAPI ventoy_parse_cmdline(IN EFI_HANDLE ImageHandle)
{
UINT32 i = 0;
UINT32 old_cnt = 0;
UINTN size = 0;
UINT8 chksum = 0;
CHAR16 *pPos = NULL;
CHAR16 *pCmdLine = NULL;
EFI_STATUS Status = EFI_SUCCESS;
ventoy_grub_param *pGrubParam = NULL;
EFI_LOADED_IMAGE_PROTOCOL *pImageInfo = NULL;
Status = gBS->HandleProtocol(ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **)&pImageInfo);
if (EFI_ERROR(Status))
{
VtoyDebug("Failed to handle load image protocol %r", Status);
return Status;
}
pCmdLine = (CHAR16 *)AllocatePool(pImageInfo->LoadOptionsSize + 4);
SetMem(pCmdLine, pImageInfo->LoadOptionsSize + 4, 0);
CopyMem(pCmdLine, pImageInfo->LoadOptions, pImageInfo->LoadOptionsSize);
if (StrStr(pCmdLine, L"debug"))
{
gDebugPrint = TRUE;
}
if (StrStr(pCmdLine, L"isoefi=on"))
{
gLoadIsoEfi = TRUE;
}
pPos = StrStr(pCmdLine, L"FirstTry=@");
if (pPos)
{
pPos += StrLen(L"FirstTry=");
for (i = 0; i < ARRAY_SIZE(gFirstTryBootFile); i++, pPos++)
{
if (*pPos != L' ' && *pPos != L'\t' && *pPos)
{
gFirstTryBootFile[i] = (*pPos == '@') ? '\\' : *pPos;
}
else
{
break;
}
}
gEfiBootFileName[0] = gFirstTryBootFile;
gBootFileStartIndex = 0;
}
debug("cmdline:<%s>", pCmdLine);
if (gFirstTryBootFile[0])
{
debug("First Try:<%s>", gFirstTryBootFile);
}
pPos = StrStr(pCmdLine, L"env_param=");
if (!pPos)
{
return EFI_INVALID_PARAMETER;
}
pGrubParam = (ventoy_grub_param *)StrHexToUintn(pPos + StrLen(L"env_param="));
grub_env_get = pGrubParam->grub_env_get;
g_file_replace_list = &pGrubParam->file_replace;
old_cnt = g_file_replace_list->old_file_cnt;
debug("file replace: magic:0x%x virtid:%u name count:%u <%a> <%a> <%a> <%a>",
g_file_replace_list->magic,
g_file_replace_list->new_file_virtual_id,
old_cnt,
old_cnt > 0 ? g_file_replace_list->old_file_name[0] : "",
old_cnt > 1 ? g_file_replace_list->old_file_name[1] : "",
old_cnt > 2 ? g_file_replace_list->old_file_name[2] : "",
old_cnt > 3 ? g_file_replace_list->old_file_name[3] : ""
);
pPos = StrStr(pCmdLine, L"mem:");
g_chain = (ventoy_chain_head *)StrHexToUintn(pPos + 4);
pPos = StrStr(pPos, L"size:");
size = StrDecimalToUintn(pPos + 5);
debug("memory addr:%p size:%lu", g_chain, size);
if (StrStr(pCmdLine, L"memdisk"))
{
g_iso_buf_size = size;
gMemdiskMode = TRUE;
}
else
{
g_chunk = (ventoy_img_chunk *)((char *)g_chain + g_chain->img_chunk_offset);
g_img_chunk_num = g_chain->img_chunk_num;
g_override_chunk = (ventoy_override_chunk *)((char *)g_chain + g_chain->override_chunk_offset);
g_override_chunk_num = g_chain->override_chunk_num;
g_virt_chunk = (ventoy_virt_chunk *)((char *)g_chain + g_chain->virt_chunk_offset);
g_virt_chunk_num = g_chain->virt_chunk_num;
for (i = 0; i < sizeof(ventoy_os_param); i++)
{
chksum += *((UINT8 *)(&(g_chain->os_param)) + i);
}
if (gDebugPrint)
{
debug("os param checksum: 0x%x %a", g_chain->os_param.chksum, chksum ? "FAILED" : "SUCCESS");
}
ventoy_update_image_location(&(g_chain->os_param));
if (gDebugPrint)
{
ventoy_dump_chain(g_chain);
}
}
FreePool(pCmdLine);
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_wrapper_file_open
(
EFI_FILE_HANDLE This,
EFI_FILE_HANDLE *New,
CHAR16 *Name,
UINT64 Mode,
UINT64 Attributes
)
{
UINT32 i = 0;
UINT32 j = 0;
UINT64 Sectors = 0;
EFI_STATUS Status = EFI_SUCCESS;
CHAR8 TmpName[256];
ventoy_virt_chunk *virt = NULL;
Status = g_original_fopen(This, New, Name, Mode, Attributes);
if (EFI_ERROR(Status))
{
return Status;
}
if (g_file_replace_list && g_file_replace_list->magic == GRUB_FILE_REPLACE_MAGIC &&
g_file_replace_list->new_file_virtual_id < g_virt_chunk_num)
{
AsciiSPrint(TmpName, sizeof(TmpName), "%s", Name);
for (j = 0; j < 4; j++)
{
if (0 == AsciiStrCmp(g_file_replace_list[i].old_file_name[j], TmpName))
{
g_original_fclose(*New);
*New = &g_efi_file_replace.WrapperHandle;
ventoy_wrapper_file_procotol(*New);
virt = g_virt_chunk + g_file_replace_list->new_file_virtual_id;
Sectors = (virt->mem_sector_end - virt->mem_sector_start) + (virt->remap_sector_end - virt->remap_sector_start);
g_efi_file_replace.BlockIoSectorStart = virt->mem_sector_start;
g_efi_file_replace.FileSizeBytes = Sectors * 2048;
if (gDebugPrint)
{
debug("## ventoy_wrapper_file_open <%s> BlockStart:%lu Sectors:%lu Bytes:%lu", Name,
g_efi_file_replace.BlockIoSectorStart, Sectors, Sectors * 2048);
sleep(3);
}
return Status;
}
}
}
return Status;
}
EFI_STATUS EFIAPI ventoy_wrapper_open_volume
(
IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This,
OUT EFI_FILE_PROTOCOL **Root
)
{
EFI_STATUS Status = EFI_SUCCESS;
Status = g_original_open_volume(This, Root);
if (!EFI_ERROR(Status))
{
g_original_fopen = (*Root)->Open;
g_original_fclose = (*Root)->Close;
(*Root)->Open = ventoy_wrapper_file_open;
}
return Status;
}
EFI_STATUS EFIAPI ventoy_boot(IN EFI_HANDLE ImageHandle)
{
UINTN t = 0;
UINTN i = 0;
UINTN j = 0;
UINTN Find = 0;
UINTN Count = 0;
EFI_HANDLE Image = NULL;
EFI_HANDLE *Handles = NULL;
EFI_STATUS Status = EFI_SUCCESS;
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *pFile = NULL;
EFI_DEVICE_PATH_PROTOCOL *pDevPath = NULL;
for (t = 0; t < 3; t++)
{
Count = 0;
Handles = NULL;
Status = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid,
NULL, &Count, &Handles);
if (EFI_ERROR(Status))
{
return Status;
}
debug("ventoy_boot fs count:%u", Count);
for (i = 0; i < Count; i++)
{
Status = gBS->HandleProtocol(Handles[i], &gEfiSimpleFileSystemProtocolGuid, (VOID **)&pFile);
if (EFI_ERROR(Status))
{
continue;
}
debug("FS:%u Protocol:%p OpenVolume:%p", i, pFile, pFile->OpenVolume);
Status = gBS->OpenProtocol(Handles[i], &gEfiDevicePathProtocolGuid,
(VOID **)&pDevPath,
ImageHandle,
Handles[i],
EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (EFI_ERROR(Status))
{
debug("Failed to open device path protocol %r", Status);
continue;
}
debug("Handle:%p FS DP: <%s>", Handles[i], ConvertDevicePathToText(pDevPath, FALSE, FALSE));
if (CompareMem(gBlockData.Path, pDevPath, gBlockData.DevicePathCompareLen))
{
debug("Not ventoy disk file system");
continue;
}
for (j = gBootFileStartIndex; j < ARRAY_SIZE(gEfiBootFileName); j++)
{
Status = ventoy_load_image(ImageHandle, pDevPath, gEfiBootFileName[j],
StrSize(gEfiBootFileName[j]), &Image);
if (EFI_SUCCESS == Status)
{
break;
}
debug("Failed to load image %r <%s>", Status, gEfiBootFileName[j]);
}
if (j >= ARRAY_SIZE(gEfiBootFileName))
{
continue;
}
Find++;
debug("Find boot file, now try to boot .....");
ventoy_debug_pause();
if (gDebugPrint)
{
gST->ConIn->Reset(gST->ConIn, FALSE);
//ventoy_wrapper_system();
}
if (g_file_replace_list && g_file_replace_list->magic == GRUB_FILE_REPLACE_MAGIC)
{
g_original_open_volume = pFile->OpenVolume;
pFile->OpenVolume = ventoy_wrapper_open_volume;
}
Status = gBS->StartImage(Image, NULL, NULL);
if (EFI_ERROR(Status))
{
debug("Failed to start image %r", Status);
sleep(3);
gBS->UnloadImage(Image);
break;
}
}
FreePool(Handles);
if (Find == 0)
{
debug("Fs not found, now wait and retry...");
sleep(2);
}
}
if (Find == 0)
{
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_clean_env(VOID)
{
FreePool(g_sector_flag);
g_sector_flag_num = 0;
if (gLoadIsoEfi && gBlockData.IsoDriverImage)
{
gBS->UnloadImage(gBlockData.IsoDriverImage);
}
gBS->DisconnectController(gBlockData.Handle, NULL, NULL);
gBS->UninstallMultipleProtocolInterfaces(gBlockData.Handle,
&gEfiBlockIoProtocolGuid, &gBlockData.BlockIo,
&gEfiDevicePathProtocolGuid, gBlockData.Path,
NULL);
ventoy_delete_variable();
if (g_chain->os_param.vtoy_img_location_addr)
{
FreePool((VOID *)(UINTN)g_chain->os_param.vtoy_img_location_addr);
}
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI ventoy_ramdisk_boot(IN EFI_HANDLE ImageHandle)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_RAM_DISK_PROTOCOL *RamDisk = NULL;
EFI_DEVICE_PATH_PROTOCOL *DevicePath = NULL;
debug("RamDisk Boot ...");
Status = gBS->LocateProtocol(&gEfiRamDiskProtocolGuid, NULL, (VOID **)&RamDisk);
if (EFI_ERROR(Status))
{
debug("Failed to locate ramdisk protocol %r", Status);
return Status;
}
debug("Locate RamDisk Protocol %r ...", Status);
Status = RamDisk->Register((UINTN)g_chain, (UINT64)g_iso_buf_size, &gEfiVirtualCdGuid, NULL, &DevicePath);
if (EFI_ERROR(Status))
{
debug("Failed to register ramdisk %r", Status);
return Status;
}
debug("Register RamDisk %r ...", Status);
debug("RamDisk DevicePath:<%s> ...", ConvertDevicePathToText(DevicePath, FALSE, FALSE));
ventoy_debug_pause();
gBlockData.Path = DevicePath;
gBlockData.DevicePathCompareLen = GetDevicePathSize(DevicePath) - sizeof(EFI_DEVICE_PATH_PROTOCOL);
Status = ventoy_boot(ImageHandle);
if (EFI_NOT_FOUND == Status)
{
gST->ConOut->OutputString(gST->ConOut, L"No bootfile found for UEFI!\r\n");
gST->ConOut->OutputString(gST->ConOut, L"Maybe the image does not support " VENTOY_UEFI_DESC L"!\r\n");
sleep(300);
}
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI VentoyEfiMain
(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status = EFI_SUCCESS;
g_sector_flag_num = 512; /* initial value */
g_sector_flag = AllocatePool(g_sector_flag_num * sizeof(ventoy_sector_flag));
if (NULL == g_sector_flag)
{
return EFI_OUT_OF_RESOURCES;
}
gST->ConOut->ClearScreen(gST->ConOut);
ventoy_clear_input();
ventoy_parse_cmdline(ImageHandle);
if (gMemdiskMode)
{
g_ramdisk_param.PhyAddr = (UINT64)(UINTN)g_chain;
g_ramdisk_param.DiskSize = (UINT64)g_iso_buf_size;
ventoy_save_ramdisk_param();
ventoy_install_blockio(ImageHandle, g_iso_buf_size);
Status = ventoy_boot(ImageHandle);
if (EFI_NOT_FOUND == Status)
{
gST->ConOut->OutputString(gST->ConOut, L"No bootfile found for UEFI!\r\n");
gST->ConOut->OutputString(gST->ConOut, L"Maybe the image does not support " VENTOY_UEFI_DESC L"!\r\n");
sleep(300);
}
ventoy_del_ramdisk_param();
}
else
{
ventoy_set_variable();
ventoy_find_iso_disk(ImageHandle);
if (gLoadIsoEfi)
{
ventoy_find_iso_disk_fs(ImageHandle);
ventoy_load_isoefi_driver(ImageHandle);
}
ventoy_debug_pause();
ventoy_install_blockio(ImageHandle, g_chain->virt_img_size_in_bytes);
ventoy_debug_pause();
Status = ventoy_boot(ImageHandle);
if (EFI_NOT_FOUND == Status)
{
if (!gLoadIsoEfi)
{
gLoadIsoEfi = TRUE;
ventoy_find_iso_disk_fs(ImageHandle);
ventoy_load_isoefi_driver(ImageHandle);
Status = ventoy_boot(ImageHandle);
}
if (EFI_NOT_FOUND == Status)
{
gST->ConOut->OutputString(gST->ConOut, L"No bootfile found for UEFI!\r\n");
gST->ConOut->OutputString(gST->ConOut, L"Maybe the image does not support " VENTOY_UEFI_DESC L"!\r\n");
sleep(60);
}
}
ventoy_clean_env();
}
ventoy_clear_input();
gST->ConOut->ClearScreen(gST->ConOut);
return EFI_SUCCESS;
}
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