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dll: FspFileSystemSetMountPoint: testing

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This commit is contained in:
Bill Zissimopoulos 2016-10-18 14:08:58 -07:00
parent 82a9c8e80f
commit cb17b7e2e0
8 changed files with 125 additions and 22 deletions
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10
inc/winfsp/winfsp.h
View File

@ -855,9 +855,13 @@ FSP_API VOID FspFileSystemDelete(FSP_FILE_SYSTEM *FileSystem);
/**
* Set the mount point for a file system.
*
* This function currently only supports drive letters (X:) as mount points. Refer to the
* documentation of the DefineDosDevice Windows API to better understand how drive letters are
* created.
* This function supports drive letters (X:) or directories as mount points:
* <ul>
* <li>Drive letters: Refer to the documentation of the DefineDosDevice Windows API
* to better understand how they are created.</li>
* <li>Directories: They can be used as mount points for disk based file systems. They cannot
* be used for network file systems. This is a limitation that Windows imposes on junctions.</li>
* </ul>
*
* @param FileSystem
* The file system object.

18
src/dll/fs.c
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@ -126,10 +126,24 @@ static NTSTATUS FspFileSystemSetMountPoint_CreateDirectory(PWSTR MountPoint, PWS
NTSTATUS Result;
HANDLE DirHandle;
BOOL Success;
DWORD Bytes;
DWORD Backslashes, Bytes;
USHORT VolumeNameLength, BackslashLength, ReparseDataLength;
PREPARSE_DATA_BUFFER ReparseData = 0;
PWSTR PathBuffer;
PWSTR P, PathBuffer;
/*
* Windows does not allow mount points (junctions) to point to network file systems.
*
* Count how many backslashes our VolumeName. If it is 3 or more this is a network
* file system. Preemptively return STATUS_NETWORK_ACCESS_DENIED.
*/
for (P = VolumeName, Backslashes = 0; *P; P++)
if (L'\\' == *P)
if (3 == ++Backslashes)
{
Result = STATUS_NETWORK_ACCESS_DENIED;
goto exit;
}
if (!CreateDirectoryW(MountPoint, 0))
{

12
tools/run-tests.bat
View File

@ -78,6 +78,12 @@ if errorlevel 1 goto fail
echo winfsp-tests-x64 --case-randomize
winfsp-tests-x64 --case-randomize
if errorlevel 1 goto fail
echo winfsp-tests-x64 --mountpoint=X:
winfsp-tests-x64 --mountpoint=X:
if errorlevel 1 goto fail
echo winfsp-tests-x64 --mountpoint=mymnt
winfsp-tests-x64 --mountpoint=mymnt
if errorlevel 1 goto fail
exit /b 0
:winfsp-tests-x86
@ -87,6 +93,12 @@ if errorlevel 1 goto fail
echo winfsp-tests-x86 --case-randomize
winfsp-tests-x86 --case-randomize
if errorlevel 1 goto fail
echo winfsp-tests-x86 --mountpoint=X:
winfsp-tests-x86 --mountpoint=X:
if errorlevel 1 goto fail
echo winfsp-tests-x86 --mountpoint=mymnt
winfsp-tests-x86 --mountpoint=mymnt
if errorlevel 1 goto fail
exit /b 0
:fsx-memfs-x64

6
tst/winfsp-tests/create-test.c
View File

@ -62,11 +62,14 @@ void create_dotest(ULONG Flags, PWSTR Prefix)
StringCbPrintfW(FilePath, sizeof FilePath, L"%s%s\\\\\\file0",
Prefix ? L"" : L"\\\\?\\GLOBALROOT", Prefix ? Prefix : memfs_volumename(memfs));
if (0 == OptMountPoint)
{
Handle = CreateFileW(FilePath,
GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0);
ASSERT(INVALID_HANDLE_VALUE == Handle);
ASSERT(ERROR_INVALID_NAME == GetLastError());
}
}
/* invalid chars (wildcards) not allowed */
StringCbPrintfW(FilePath, sizeof FilePath, L"%s%s\\file0*",
@ -146,10 +149,13 @@ void create_dotest(ULONG Flags, PWSTR Prefix)
StringCbPrintfW(FilePath, sizeof FilePath, L"%s%s\\file0\\",
Prefix ? L"" : L"\\\\?\\GLOBALROOT", Prefix ? Prefix : memfs_volumename(memfs));
if (0 == OptMountPoint)
{
Handle = CreateFileW(FilePath,
GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0);
ASSERT(INVALID_HANDLE_VALUE == Handle);
ASSERT(ERROR_INVALID_NAME == GetLastError());
}
StringCbPrintfW(FilePath, sizeof FilePath, L"%s%s\\dir1\\\\",
Prefix ? L"" : L"\\\\?\\GLOBALROOT", Prefix ? Prefix : memfs_volumename(memfs));

12
tst/winfsp-tests/memfs-test.c
View File

@ -5,6 +5,8 @@
#include "winfsp-tests.h"
int memfs_running;
void *memfs_start_ex(ULONG Flags, ULONG FileInfoTimeout)
{
if (-1 == Flags)
@ -24,9 +26,17 @@ void *memfs_start_ex(ULONG Flags, ULONG FileInfoTimeout)
ASSERT(NT_SUCCESS(Result));
ASSERT(0 != Memfs);
if (OptMountPoint)
{
Result = FspFileSystemSetMountPoint(MemfsFileSystem(Memfs), OptMountPoint);
ASSERT(NT_SUCCESS(Result));
}
Result = MemfsStart(Memfs);
ASSERT(NT_SUCCESS(Result));
memfs_running = 1;
return Memfs;
}
@ -40,6 +50,8 @@ void memfs_stop(void *data)
if (0 == data)
return;
memfs_running = 0;
MEMFS *Memfs = data;
MemfsStop(Memfs);

3
tst/winfsp-tests/reparse-test.c
View File

@ -434,7 +434,7 @@ static void reparse_symlink_relative_dotest(ULONG Flags, PWSTR Prefix, ULONG Fil
{
ASSERT(ERROR_PRIVILEGE_NOT_HELD == GetLastError());
FspDebugLog(__FUNCTION__ ": need SE_CREATE_SYMBOLIC_LINK_PRIVILEGE\n");
return;
goto exit;
}
my_mkdir(L"\\1");
@ -491,6 +491,7 @@ static void reparse_symlink_relative_dotest(ULONG Flags, PWSTR Prefix, ULONG Fil
my_rmdir(L"\\1\\1.1");
my_rmdir(L"\\1");
exit:
memfs_stop(memfs);
}

53
tst/winfsp-tests/winfsp-tests.c
View File

@ -9,6 +9,7 @@ int WinFspNetTests = 1;
BOOLEAN OptCaseInsensitive = FALSE;
BOOLEAN OptCaseRandomize = FALSE;
WCHAR OptMountPointBuf[MAX_PATH], *OptMountPoint;
int mywcscmp(PWSTR a, int alen, PWSTR b, int blen)
{
@ -57,12 +58,16 @@ HANDLE HookCreateFileW(
HANDLE hTemplateFile)
{
static WCHAR DevicePrefix[] =
L"\\\\?\\GLOBALROOT\\Device\\Volume{01234567-0123-0123-0101-010101010101}\\";
L"\\\\?\\GLOBALROOT\\Device\\Volume{01234567-0123-0123-0101-010101010101}";
static WCHAR MemfsSharePrefix[] =
L"\\\\memfs\\share";
static const TogglePercent = 25;
WCHAR FileNameBuf[1024];
PWSTR P, EndP;
size_t L1, L2;
wcscpy_s(FileNameBuf, sizeof FileNameBuf / sizeof(WCHAR), lpFileName);
if (OptCaseRandomize)
{
if (L'\\' == FileNameBuf[0] && L'\\' == FileNameBuf[1] &&
@ -83,6 +88,37 @@ HANDLE HookCreateFileW(
*P = togglealpha(*P);
}
if (OptMountPoint && memfs_running)
{
if (L'\\' == FileNameBuf[0] && L'\\' == FileNameBuf[1] &&
L'?' == FileNameBuf[2] && L'\\' == FileNameBuf[3] &&
testalpha(FileNameBuf[4]) && L':' == FileNameBuf[5] && L'\\' == FileNameBuf[6])
;
else if (0 == wcsncmp(FileNameBuf, DevicePrefix, wcschr(DevicePrefix, L'{') - DevicePrefix))
{
P = FileNameBuf + wcslen(DevicePrefix);
L1 = wcslen(P) + 1;
L2 = wcslen(OptMountPoint);
memmove(FileNameBuf + 1024 - L1, P, L1 * sizeof(WCHAR));
memmove(FileNameBuf, OptMountPoint, L2 * sizeof(WCHAR));
memmove(FileNameBuf + L2, P, L1 * sizeof(WCHAR));
}
else if (0 == mywcscmp(
FileNameBuf, (int)wcslen(MemfsSharePrefix), MemfsSharePrefix, (int)wcslen(MemfsSharePrefix)))
{
P = FileNameBuf + wcslen(MemfsSharePrefix);
L1 = wcslen(P) + 1;
L2 = wcslen(OptMountPoint);
memmove(FileNameBuf + 1024 - L1, P, L1 * sizeof(WCHAR));
memmove(FileNameBuf, OptMountPoint, L2 * sizeof(WCHAR));
memmove(FileNameBuf + L2, P, L1 * sizeof(WCHAR));
}
else if (testalpha(FileNameBuf[0]) && L':' == FileNameBuf[1] && L'\\' == FileNameBuf[2])
;
else
abort();
}
HANDLE h = CreateFileW(
FileNameBuf,
dwDesiredAccess,
@ -149,6 +185,21 @@ int main(int argc, char *argv[])
OptCaseInsensitive = TRUE;
rmarg(argv, argc, argi);
}
else if (0 == strncmp("--mountpoint=", a, sizeof "--mountpoint=" - 1))
{
if (0 != MultiByteToWideChar(CP_UTF8, 0,
a + sizeof "--mountpoint=" - 1, -1, OptMountPointBuf, MAX_PATH))
{
OptMountPoint = OptMountPointBuf;
rmarg(argv, argc, argi);
NtfsTests = 0;
if (!(testalpha(OptMountPoint[0]) &&
L':' == OptMountPoint[1] &&
L'\0' == OptMountPoint[2]))
WinFspNetTests = 0;
}
}
}
}

17
tst/winfsp-tests/winfsp-tests.h
View File

@ -5,13 +5,6 @@ void *memfs_start(ULONG Flags);
void memfs_stop(void *data);
PWSTR memfs_volumename(void *data);
extern int NtfsTests;
extern int WinFspDiskTests;
extern int WinFspNetTests;
extern BOOLEAN OptCaseInsensitive;
extern BOOLEAN OptCaseRandomize;
int mywcscmp(PWSTR a, int alen, PWSTR b, int blen);
#define CreateFileW HookCreateFileW
@ -23,3 +16,13 @@ HANDLE HookCreateFileW(
DWORD dwCreationDisposition,
DWORD dwFlagsAndAttributes,
HANDLE hTemplateFile);
extern int NtfsTests;
extern int WinFspDiskTests;
extern int WinFspNetTests;
extern BOOLEAN OptCaseInsensitive;
extern BOOLEAN OptCaseRandomize;
extern WCHAR OptMountPointBuf[], *OptMountPoint;
extern int memfs_running;