dll: fsctl.c, ntstatus.c

src/dll/fsctl.c

@@ -6,3 +6,99 @@
 
 #include <winfsp/winfsp.h>
 #include <winfsp/fsctl.h>
+#include <strsafe.h>
+
+#define GLOBALROOT                      L"\\\\?\\GLOBALROOT"
+
+NTSTATUS FspFsctlCreateVolume(PWSTR DevicePath, PSECURITY_DESCRIPTOR SecurityDescriptor,
+    PHANDLE *PHandle)
+{
+    NTSTATUS Result = STATUS_SUCCESS;
+    WCHAR DevicePathBuf[(sizeof GLOBALROOT + FSP_FSCTL_CREATE_BUFFER_SIZE) / sizeof(WCHAR)];
+    WCHAR VolumePathBuf[FSP_FSCTL_CREATE_BUFFER_SIZE / sizeof(WCHAR)];
+    PSECURITY_DESCRIPTOR SecurityDescriptorBuf = 0;
+    DWORD SecurityDescriptorLen, Bytes;
+    HANDLE DeviceHandle = INVALID_HANDLE_VALUE;
+
+    *PHandle = 0;
+
+    DevicePathBuf[0] = L'\0';
+    StringCbPrintf(DevicePathBuf, sizeof DevicePathBuf, GLOBALROOT "%S", DevicePath);
+
+    if (!MakeSelfRelativeSD(SecurityDescriptor, 0, &SecurityDescriptorLen))
+    {
+        SecurityDescriptorBuf = malloc(SecurityDescriptorLen);
+        if (0 == SecurityDescriptorBuf)
+        {
+            Result = STATUS_INSUFFICIENT_RESOURCES;
+            goto exit;
+        }
+        if (!MakeSelfRelativeSD(SecurityDescriptor, SecurityDescriptorBuf, &SecurityDescriptorLen))
+        {
+            Result = FspNtStatusFromWin32(GetLastError());
+            goto exit;
+        }
+    }
+
+    DeviceHandle = CreateFileW(DevicePathBuf,
+        0, FILE_SHARE_WRITE | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, 0, 0);
+    if (INVALID_HANDLE_VALUE == DeviceHandle)
+    {
+        Result = FspNtStatusFromWin32(GetLastError());
+        goto exit;
+    }
+
+    if (!DeviceIoControl(DeviceHandle, FSP_FSCTL_CREATE,
+        SecurityDescriptorBuf, SecurityDescriptorLen, VolumePathBuf, sizeof VolumePathBuf,
+        &Bytes, 0))
+    {
+        Result = FspNtStatusFromWin32(GetLastError());
+        goto exit;
+    }
+
+    Result = FspFsctlOpenVolume(VolumePathBuf, PHandle);
+
+exit:
+    if (INVALID_HANDLE_VALUE != DeviceHandle)
+        CloseHandle(DeviceHandle);
+    free(SecurityDescriptorBuf);
+    return Result;
+}
+
+NTSTATUS FspFsctlOpenVolume(PWSTR VolumePath,
+    PHANDLE *PHandle)
+{
+    NTSTATUS Result = STATUS_SUCCESS;
+    WCHAR DevicePathBuf[(sizeof GLOBALROOT + FSP_FSCTL_CREATE_BUFFER_SIZE) / sizeof(WCHAR)];
+    HANDLE DeviceHandle;
+
+    *PHandle = 0;
+
+    DevicePathBuf[0] = L'\0';
+    StringCbPrintf(DevicePathBuf, sizeof DevicePathBuf, GLOBALROOT "%S", VolumePath);
+
+    DeviceHandle = CreateFileW(DevicePathBuf,
+        0, FILE_SHARE_WRITE | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, 0, 0);
+    if (INVALID_HANDLE_VALUE == DeviceHandle)
+    {
+        Result = FspNtStatusFromWin32(GetLastError());
+        goto exit;
+    }
+
+    *PHandle = DeviceHandle;
+
+exit:
+    return Result;
+}
+
+NTSTATUS FspFsctlDeleteVolume(HANDLE Handle)
+{
+    return STATUS_NOT_IMPLEMENTED;
+}
+
+NTSTATUS FspFsctlTransact(HANDLE Handle,
+    const FSP_TRANSACT_RSP *Responses, size_t NumResponses,
+    const FSP_TRANSACT_REQ *Requests, size_t *NumRequests)
+{
+    return STATUS_NOT_IMPLEMENTED;
+}

src/dll/ntstatus.c

@@ -0,0 +1,12 @@
+/**
+ * @file dll/ntstatus.c
+ *
+ * @copyright 2015 Bill Zissimopoulos
+ */
+
+#include <winfsp/winfsp.h>
+
+NTSTATUS FspNtStatusFromWin32(DWORD Error)
+{
+    return STATUS_ACCESS_DENIED;
+}