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[USETUP] Support a custom way to extract files for cabinet files

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This will be used to extract files from cabinet to memory, instead of
writing them to disk.
This commit is contained in:
Hervé Poussineau 2019-05-13 23:28:19 +02:00
parent 0d51c71ed7
commit 04ec14e23e
3 changed files with 147 additions and 124 deletions
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262
base/setup/usetup/spapisup/cabinet.c
View file

@ -1018,134 +1018,147 @@ CabinetExtractFile(
DPRINT("Extracting file at uncompressed offset (0x%X) Size (%d bytes)\n",
(UINT)Search->File->FileOffset, (UINT)Search->File->FileSize);
RtlInitAnsiString(&AnsiString, Search->File->FileName);
wcscpy(DestName, CabinetContext->DestPath);
UnicodeString.MaximumLength = sizeof(DestName) - wcslen(DestName) * sizeof(WCHAR);
UnicodeString.Buffer = DestName + wcslen(DestName);
UnicodeString.Length = 0;
RtlAnsiStringToUnicodeString(&UnicodeString, &AnsiString, FALSE);
/* Create destination file, fail if it already exists */
RtlInitUnicodeString(&UnicodeString, DestName);
InitializeObjectAttributes(&ObjectAttributes,
&UnicodeString,
OBJ_CASE_INSENSITIVE,
NULL, NULL);
NtStatus = NtCreateFile(&DestFile,
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
FILE_ATTRIBUTE_NORMAL,
0,
FILE_CREATE,
FILE_SYNCHRONOUS_IO_NONALERT,
NULL, 0);
if (!NT_SUCCESS(NtStatus))
if (CabinetContext->CreateFileHandler)
{
DPRINT("NtCreateFile() failed (%S) (%x)\n", DestName, NtStatus);
/* If file exists, ask to overwrite file */
if (CabinetContext->OverwriteHandler == NULL ||
CabinetContext->OverwriteHandler(CabinetContext, Search->File, DestName))
/* Call create context */
CurrentDestBuffer = CabinetContext->CreateFileHandler(CabinetContext, Search->File->FileSize);
if (!CurrentDestBuffer)
{
/* Create destination file, overwrite if it already exists */
NtStatus = NtCreateFile(&DestFile,
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
FILE_ATTRIBUTE_NORMAL,
0,
FILE_OVERWRITE,
FILE_SYNCHRONOUS_IO_ALERT,
NULL, 0);
if (!NT_SUCCESS(NtStatus))
{
DPRINT1("NtCreateFile() failed (%S) (%x)\n", DestName, NtStatus);
return CAB_STATUS_CANNOT_CREATE;
}
DPRINT1("CreateFileHandler() failed\n");
return CAB_STATUS_CANNOT_CREATE;
}
else
{
DPRINT1("File (%S) exists\n", DestName);
return CAB_STATUS_FILE_EXISTS;
}
}
MaxDestFileSize.QuadPart = Search->File->FileSize;
NtStatus = NtCreateSection(&DestFileSection,
SECTION_ALL_ACCESS,
0,
&MaxDestFileSize,
PAGE_READWRITE,
SEC_COMMIT,
DestFile);
if (!NT_SUCCESS(NtStatus))
{
DPRINT1("NtCreateSection failed for %ls: %x\n", DestName, NtStatus);
Status = CAB_STATUS_NOMEMORY;
goto CloseDestFile;
}
DestFileBuffer = 0;
CabinetContext->DestFileSize = 0;
NtStatus = NtMapViewOfSection(DestFileSection,
NtCurrentProcess(),
&DestFileBuffer,
0, 0, 0,
&CabinetContext->DestFileSize,
ViewUnmap,
0,
PAGE_READWRITE);
if (!NT_SUCCESS(NtStatus))
{
DPRINT1("NtMapViewOfSection failed: %x\n", NtStatus);
Status = CAB_STATUS_NOMEMORY;
goto CloseDestFileSection;
}
CurrentDestBuffer = DestFileBuffer;
if (!ConvertDosDateTimeToFileTime(Search->File->FileDate,
Search->File->FileTime,
&FileTime))
{
DPRINT1("DosDateTimeToFileTime() failed\n");
Status = CAB_STATUS_CANNOT_WRITE;
goto UnmapDestFile;
}
NtStatus = NtQueryInformationFile(DestFile,
&IoStatusBlock,
&FileBasic,
sizeof(FILE_BASIC_INFORMATION),
FileBasicInformation);
if (!NT_SUCCESS(NtStatus))
{
DPRINT("NtQueryInformationFile() failed (%x)\n", NtStatus);
}
else
{
memcpy(&FileBasic.LastAccessTime, &FileTime, sizeof(FILETIME));
RtlInitAnsiString(&AnsiString, Search->File->FileName);
wcscpy(DestName, CabinetContext->DestPath);
UnicodeString.MaximumLength = sizeof(DestName) - wcslen(DestName) * sizeof(WCHAR);
UnicodeString.Buffer = DestName + wcslen(DestName);
UnicodeString.Length = 0;
RtlAnsiStringToUnicodeString(&UnicodeString, &AnsiString, FALSE);
/* Create destination file, fail if it already exists */
RtlInitUnicodeString(&UnicodeString, DestName);
InitializeObjectAttributes(&ObjectAttributes,
&UnicodeString,
OBJ_CASE_INSENSITIVE,
NULL, NULL);
NtStatus = NtCreateFile(&DestFile,
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
FILE_ATTRIBUTE_NORMAL,
0,
FILE_CREATE,
FILE_SYNCHRONOUS_IO_NONALERT,
NULL, 0);
NtStatus = NtSetInformationFile(DestFile,
&IoStatusBlock,
&FileBasic,
sizeof(FILE_BASIC_INFORMATION),
FileBasicInformation);
if (!NT_SUCCESS(NtStatus))
{
DPRINT("NtSetInformationFile() failed (%x)\n", NtStatus);
}
}
DPRINT("NtCreateFile() failed (%S) (%x)\n", DestName, NtStatus);
SetAttributesOnFile(Search->File, DestFile);
/* If file exists, ask to overwrite file */
if (CabinetContext->OverwriteHandler == NULL ||
CabinetContext->OverwriteHandler(CabinetContext, Search->File, DestName))
{
/* Create destination file, overwrite if it already exists */
NtStatus = NtCreateFile(&DestFile,
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
FILE_ATTRIBUTE_NORMAL,
0,
FILE_OVERWRITE,
FILE_SYNCHRONOUS_IO_ALERT,
NULL, 0);
if (!NT_SUCCESS(NtStatus))
{
DPRINT1("NtCreateFile() failed (%S) (%x)\n", DestName, NtStatus);
return CAB_STATUS_CANNOT_CREATE;
}
}
else
{
DPRINT1("File (%S) exists\n", DestName);
return CAB_STATUS_FILE_EXISTS;
}
}
MaxDestFileSize.QuadPart = Search->File->FileSize;
NtStatus = NtCreateSection(&DestFileSection,
SECTION_ALL_ACCESS,
0,
&MaxDestFileSize,
PAGE_READWRITE,
SEC_COMMIT,
DestFile);
if (!NT_SUCCESS(NtStatus))
{
DPRINT1("NtCreateSection failed for %ls: %x\n", DestName, NtStatus);
Status = CAB_STATUS_NOMEMORY;
goto CloseDestFile;
}
DestFileBuffer = 0;
CabinetContext->DestFileSize = 0;
NtStatus = NtMapViewOfSection(DestFileSection,
NtCurrentProcess(),
&DestFileBuffer,
0, 0, 0,
&CabinetContext->DestFileSize,
ViewUnmap,
0,
PAGE_READWRITE);
if (!NT_SUCCESS(NtStatus))
{
DPRINT1("NtMapViewOfSection failed: %x\n", NtStatus);
Status = CAB_STATUS_NOMEMORY;
goto CloseDestFileSection;
}
CurrentDestBuffer = DestFileBuffer;
if (!ConvertDosDateTimeToFileTime(Search->File->FileDate,
Search->File->FileTime,
&FileTime))
{
DPRINT1("DosDateTimeToFileTime() failed\n");
Status = CAB_STATUS_CANNOT_WRITE;
goto UnmapDestFile;
}
NtStatus = NtQueryInformationFile(DestFile,
&IoStatusBlock,
&FileBasic,
sizeof(FILE_BASIC_INFORMATION),
FileBasicInformation);
if (!NT_SUCCESS(NtStatus))
{
DPRINT("NtQueryInformationFile() failed (%x)\n", NtStatus);
}
else
{
memcpy(&FileBasic.LastAccessTime, &FileTime, sizeof(FILETIME));
NtStatus = NtSetInformationFile(DestFile,
&IoStatusBlock,
&FileBasic,
sizeof(FILE_BASIC_INFORMATION),
FileBasicInformation);
if (!NT_SUCCESS(NtStatus))
{
DPRINT("NtSetInformationFile() failed (%x)\n", NtStatus);
}
}
SetAttributesOnFile(Search->File, DestFile);
}
/* Call extract event handler */
if (CabinetContext->ExtractHandler != NULL)
@ -1250,13 +1263,16 @@ CabinetExtractFile(
Status = CAB_STATUS_SUCCESS;
UnmapDestFile:
NtUnmapViewOfSection(NtCurrentProcess(), DestFileBuffer);
if (!CabinetContext->CreateFileHandler)
NtUnmapViewOfSection(NtCurrentProcess(), DestFileBuffer);
CloseDestFileSection:
NtClose(DestFileSection);
if (!CabinetContext->CreateFileHandler)
NtClose(DestFileSection);
CloseDestFile:
NtClose(DestFile);
if (!CabinetContext->CreateFileHandler)
NtClose(DestFile);
return Status;
}
@ -1316,11 +1332,13 @@ CabinetSetEventHandlers(
IN PCABINET_CONTEXT CabinetContext,
IN PCABINET_OVERWRITE Overwrite,
IN PCABINET_EXTRACT Extract,
IN PCABINET_DISK_CHANGE DiskChange)
IN PCABINET_DISK_CHANGE DiskChange,
IN PCABINET_CREATE_FILE CreateFile)
{
CabinetContext->OverwriteHandler = Overwrite;
CabinetContext->ExtractHandler = Extract;
CabinetContext->DiskChangeHandler = DiskChange;
CabinetContext->CreateFileHandler = CreateFile;
}
/*

7
base/setup/usetup/spapisup/cabinet.h
View file

@ -65,6 +65,9 @@ typedef VOID (*PCABINET_DISK_CHANGE)(
IN PCWSTR CabinetName,
IN PCWSTR DiskLabel);
typedef PVOID (*PCABINET_CREATE_FILE)(
IN struct _CABINET_CONTEXT* CabinetContext,
IN ULONG FileSize);
/* Classes */
@ -106,6 +109,7 @@ typedef struct _CABINET_CONTEXT
PCABINET_OVERWRITE OverwriteHandler;
PCABINET_EXTRACT ExtractHandler;
PCABINET_DISK_CHANGE DiskChangeHandler;
PCABINET_CREATE_FILE CreateFileHandler;
PVOID CabinetReservedArea;
} CABINET_CONTEXT, *PCABINET_CONTEXT;
@ -204,7 +208,8 @@ CabinetSetEventHandlers(
IN PCABINET_CONTEXT CabinetContext,
IN PCABINET_OVERWRITE Overwrite,
IN PCABINET_EXTRACT Extract,
IN PCABINET_DISK_CHANGE DiskChange);
IN PCABINET_DISK_CHANGE DiskChange,
IN PCABINET_CREATE_FILE CreateFile);
/* Get pointer to cabinet reserved area. NULL if none */
PVOID

2
base/setup/usetup/spapisup/fileqsup.c
View file

@ -117,7 +117,7 @@ SetupExtractFile(
CabinetInitialize(&QueueHeader->CabinetContext);
CabinetSetEventHandlers(&QueueHeader->CabinetContext,
NULL, NULL, NULL);
NULL, NULL, NULL, NULL);
CabinetSetCabinetName(&QueueHeader->CabinetContext, CabinetFileName);
CabStatus = CabinetOpen(&QueueHeader->CabinetContext);