Finished and deployed CORBA sandbox separation
[captive.git] / src / libcaptive / client / file.c
index e8df7a8..80df600 100644 (file)
 #include "reactos/ntos/types.h"        /* for HANDLE */
 #include "reactos/ddk/iotypes.h"       /* for IO_STATUS_BLOCK */
 #include "reactos/ddk/iofuncs.h"       /* for IoCreateFile() */
-#include "captive/sandbox.h"
 #include "result.h"
 #include "captive/client-directory.h"
 #include "reactos/ddk/obfuncs.h"       /* for ObReferenceObjectByHandle() */
 #include "captive/macros.h"
+#include "captive/leave.h"
+#include "captive/usecount.h"
+#include "vfs.h"
+#include "captive/parent-File.h"
 
 
 static gpointer captive_file_object_parent_class=NULL;
@@ -42,12 +45,9 @@ static GnomeVFSResult captive_file_close(CaptiveFileObject *captive_file_object)
 
 static void captive_file_object_finalize(CaptiveFileObject *captive_file_object)
 {
-GnomeVFSResult errvfsresult;
-
        g_return_if_fail(captive_file_object!=NULL);
 
-       errvfsresult=captive_file_close(captive_file_object);
-       g_assert(errvfsresult==GNOME_VFS_OK);
+       captive_file_close(captive_file_object);        /* errors ignored */
 
        G_OBJECT_CLASS(captive_file_object_parent_class)->finalize((GObject *)captive_file_object);
 }
@@ -93,24 +93,18 @@ static const GTypeInfo captive_file_object_info={
 }
 
 
-static GnomeVFSResult captive_file_new_internal(CaptiveFileObject **captive_file_object_return,
+static GnomeVFSResult captive_file_new_internal(CaptiveFileObject *captive_file_object,
                const gchar *pathname,GnomeVFSOpenMode mode,gboolean create,gboolean create_exclusive,guint create_perm)
 {
 IO_STATUS_BLOCK file_IoStatusBlock;
 GnomeVFSResult errvfsresult;
 OBJECT_ATTRIBUTES file_ObjectAttributes;
 HANDLE file_Handle;
-CaptiveFileObject *captive_file_object;
 NTSTATUS err;
 
-       if (CAPTIVE_IS_SANDBOX_PARENT())
-               return captive_sandbox_parent_file_new_open(captive_file_object_return,pathname,mode);
-
-       g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+       g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
-       *captive_file_object_return=NULL;
-
        errvfsresult=captive_ObjectAttributes_init(pathname,&file_ObjectAttributes);
        g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
        
@@ -150,41 +144,79 @@ NTSTATUS err;
                                        ==(!create ? FILE_OPENED : FILE_CREATED),
                        GNOME_VFS_ERROR_GENERIC);
 
-       captive_file_object=g_object_new(
-                       CAPTIVE_FILE_TYPE_OBJECT,       /* object_type */
-                       NULL);  /* first_property_name; FIXME: support properties */
-
        captive_file_object->file_Handle=file_Handle;
-       captive_file_object->offset=0;
 
-       *captive_file_object_return=captive_file_object;
        return GNOME_VFS_OK;
 }
 
 
-GnomeVFSResult captive_file_new_open
-               (CaptiveFileObject **captive_file_object_return,const gchar *pathname,GnomeVFSOpenMode mode)
+GnomeVFSResult captive_file_new_open(CaptiveFileObject **captive_file_object_return,
+               CaptiveVfsObject *captive_vfs_object,const gchar *pathname,GnomeVFSOpenMode mode)
 {
+GnomeVFSResult r;
+CaptiveFileObject *captive_file_object;
+
        g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+       g_return_val_if_fail(captive_vfs_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
-       return captive_file_new_internal(captive_file_object_return,pathname,mode,
+       captive_file_object=g_object_new(
+                       CAPTIVE_FILE_TYPE_OBJECT,       /* object_type */
+                       NULL);  /* first_property_name; FIXME: support properties */
+       captive_file_object->vfs=captive_vfs_object;
+       captive_file_object->file_Handle=NULL;
+       captive_file_object->offset=0;
+       *captive_file_object_return=captive_file_object;
+
+       if (captive_vfs_object->is_sandbox_parent)
+               return captive_sandbox_parent_file_new_open(captive_file_object,pathname,mode);
+
+       r=captive_file_new_internal(captive_file_object,pathname,mode,
                        FALSE,  /* create */
                        FALSE,  /* create_exclusive; ignored */
                        0);     /* create_perm; ignored */
+
+       captive_leave();
+       if (r==GNOME_VFS_OK)
+               captive_usecount(+1);
+       else
+               g_object_unref(captive_file_object);
+       return r;
 }
 
 
-GnomeVFSResult captive_file_new_create
-               (CaptiveFileObject **captive_file_object_return,const gchar *pathname,GnomeVFSOpenMode mode,gboolean exclusive,guint perm)
+GnomeVFSResult captive_file_new_create(CaptiveFileObject **captive_file_object_return,
+               CaptiveVfsObject *captive_vfs_object,const gchar *pathname,GnomeVFSOpenMode mode,gboolean exclusive,guint perm)
 {
+GnomeVFSResult r;
+CaptiveFileObject *captive_file_object;
+
        g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+       g_return_val_if_fail(captive_vfs_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
-       return captive_file_new_internal(captive_file_object_return,pathname,mode,
+       captive_file_object=g_object_new(
+                       CAPTIVE_FILE_TYPE_OBJECT,       /* object_type */
+                       NULL);  /* first_property_name; FIXME: support properties */
+       captive_file_object->vfs=captive_vfs_object;
+       captive_file_object->file_Handle=NULL;
+       captive_file_object->offset=0;
+       *captive_file_object_return=captive_file_object;
+
+       if (captive_vfs_object->is_sandbox_parent)
+               return captive_sandbox_parent_file_new_create(captive_file_object,pathname,mode,exclusive,perm);
+
+       r=captive_file_new_internal(captive_file_object,pathname,mode,
                        TRUE,   /* create */
                        exclusive,      /* create_exclusive */
                        perm);  /* create_perm */
+
+       captive_leave();
+       if (r==GNOME_VFS_OK)
+               captive_usecount(+1);
+       else
+               g_object_unref(captive_file_object);
+       return r;
 }
 
 
@@ -193,17 +225,21 @@ static GnomeVFSResult captive_file_close(CaptiveFileObject *captive_file_object)
 NTSTATUS err;
 HANDLE file_Handle;
 
-       if (CAPTIVE_IS_SANDBOX_PARENT())
+       g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
+       if (captive_file_object->vfs->is_sandbox_parent)
                return captive_sandbox_parent_file_close(captive_file_object);
 
-       g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
-       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);    /* already closed */
+       if (captive_file_object->file_Handle!=NULL) {   /* not yet already closed */
+               captive_usecount(-1);   /* close() errors notwithstanding */
 
-       file_Handle=captive_file_object->file_Handle;
-       captive_file_object->file_Handle=NULL;
-       err=NtClose(file_Handle);
-       g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
+               file_Handle=captive_file_object->file_Handle;
+               captive_file_object->file_Handle=NULL;
+               err=NtClose(file_Handle);
+               g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
+               }
 
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
@@ -216,15 +252,16 @@ IO_STATUS_BLOCK file_IoStatusBlock;
 LARGE_INTEGER file_offset;
 GnomeVFSResult errvfsresult;
 
-       if (CAPTIVE_IS_SANDBOX_PARENT())
-               return captive_sandbox_parent_file_read(captive_file_object,buffer,num_bytes,bytes_read_return);
-
        g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
-       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(bytes_read_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
+       if (captive_file_object->vfs->is_sandbox_parent)
+               return captive_sandbox_parent_file_read(captive_file_object,buffer,num_bytes,bytes_read_return);
+
+       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
        file_offset.QuadPart=captive_file_object->offset;
        err=NtReadFile(
                        captive_file_object->file_Handle,       /* FileHandle */
@@ -250,6 +287,7 @@ GnomeVFSResult errvfsresult;
 
        captive_file_object->offset+=file_IoStatusBlock.Information;
        *bytes_read_return=file_IoStatusBlock.Information;
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
@@ -260,16 +298,30 @@ GnomeVFSResult captive_file_write(CaptiveFileObject *captive_file_object,
 NTSTATUS err;
 IO_STATUS_BLOCK file_IoStatusBlock;
 LARGE_INTEGER file_offset;
-
-       if (CAPTIVE_IS_SANDBOX_PARENT())
-               return captive_sandbox_parent_file_write(captive_file_object,buffer,num_bytes,bytes_written_return);
+GnomeVFSFileInfo file_info;
+GnomeVFSFileSize endoffile_wanted;
+GnomeVFSResult errvfsresult;
 
        g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
-       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(bytes_written_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
+       if (captive_file_object->vfs->is_sandbox_parent)
+               return captive_sandbox_parent_file_write(captive_file_object,buffer,num_bytes,bytes_written_return);
+
+       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
+       if ((GnomeVFSFileOffset)(captive_file_object->offset+num_bytes) < captive_file_object->offset)
+               return GNOME_VFS_ERROR_TOO_BIG;
+       endoffile_wanted=captive_file_object->offset+num_bytes;
+       if (GNOME_VFS_OK!=(errvfsresult=captive_file_file_info_get(captive_file_object,&file_info)))
+               return errvfsresult;
+       if (file_info.size<endoffile_wanted) {
+               if (GNOME_VFS_OK!=(errvfsresult=captive_file_truncate(captive_file_object,endoffile_wanted)))
+                       return errvfsresult;
+               }
+
        file_offset.QuadPart=captive_file_object->offset;
        err=NtWriteFile(
                        captive_file_object->file_Handle,       /* FileHandle */
@@ -287,6 +339,7 @@ LARGE_INTEGER file_offset;
 
        captive_file_object->offset+=file_IoStatusBlock.Information;
        *bytes_written_return=file_IoStatusBlock.Information;
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
@@ -294,10 +347,11 @@ LARGE_INTEGER file_offset;
 GnomeVFSResult captive_file_seek
                (CaptiveFileObject *captive_file_object,GnomeVFSSeekPosition whence,GnomeVFSFileOffset offset)
 {
-       if (CAPTIVE_IS_SANDBOX_PARENT())
+       g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
+       if (captive_file_object->vfs->is_sandbox_parent)
                return captive_sandbox_parent_file_seek(captive_file_object,whence,offset);
 
-       g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
        switch (whence) {
@@ -318,20 +372,23 @@ GnomeVFSResult captive_file_seek
                        g_return_val_if_reached(GNOME_VFS_ERROR_BAD_PARAMETERS);
                }
 
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
 
 GnomeVFSResult captive_file_tell(CaptiveFileObject *captive_file_object,GnomeVFSFileOffset *offset_return)
 {
-       if (CAPTIVE_IS_SANDBOX_PARENT())
+       g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+       g_return_val_if_fail(offset_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
+       if (captive_file_object->vfs->is_sandbox_parent)
                return captive_sandbox_parent_file_tell(captive_file_object,offset_return);
 
-       g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
-       g_return_val_if_fail(offset_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
        *offset_return=captive_file_object->offset;
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
@@ -344,6 +401,10 @@ IO_STATUS_BLOCK file_IoStatusBlock;
 GnomeVFSResult errvfsresult;
 
        g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
+       if (captive_file_object->vfs->is_sandbox_parent)
+               return captive_sandbox_parent_file_remove(captive_file_object);
+
        g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
        FileDispositionInformation_struct.DoDeleteFile=TRUE;
@@ -358,41 +419,53 @@ GnomeVFSResult errvfsresult;
                return errvfsresult;
        g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
 
-/* Use 'FileAllInformationStruct' identifier instead of the logical 'FileAllInformation'
- * to prevent override of enum member 'FileAllInformation'
+/* Use 'FileNameInformationStruct' identifier instead of the logical 'FileNameInformation'
+ * to prevent override of enum member 'FileNameInformation'
  */
-static GnomeVFSResult FileAllInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
-               FILE_ALL_INFORMATION *FileAllInformationStruct,IO_STATUS_BLOCK *IoStatusBlock)
+static GnomeVFSResult FileNameInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
+               FILE_NAME_INFORMATION *FileNameInformationStruct)
 {
 UNICODE_STRING FileName_UnicodeString;
-BOOLEAN errBOOLEAN;
-ULONG tmp_ULONG;
 
        g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
-       g_return_val_if_fail(FileAllInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC);
-
-       g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
+       g_return_val_if_fail(FileNameInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC);
 
-       file_info->valid_fields=0;
+       FileName_UnicodeString.Length=FileNameInformationStruct->FileNameLength;
+       FileName_UnicodeString.MaximumLength=FileNameInformationStruct->FileNameLength
+                       +sizeof(*FileNameInformationStruct->FileName);  /* 0-terminator */
 
-       FileName_UnicodeString.Length=FileAllInformationStruct->NameInformation.FileNameLength;
-       FileName_UnicodeString.MaximumLength=FileAllInformationStruct->NameInformation.FileNameLength
-                       +sizeof(*FileAllInformationStruct->NameInformation.FileName);   /* 0-terminator */
-       g_assert((gpointer)(((char *)FileAllInformationStruct->NameInformation.FileName)+FileName_UnicodeString.Length)
+#if 0  /* 'IoStatusBlock->Information' is sometimes weird, do not check it */
+       g_assert((gpointer)(((char *)FileNameInformationStruct->FileName)+FileName_UnicodeString.Length)
                        <=(gpointer)(((char *)FileAllInformationStruct)+IoStatusBlock->Information));
                                        /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
-       FileAllInformationStruct->NameInformation.FileName[FileAllInformationStruct->NameInformation.FileNameLength
-                       /sizeof(*FileAllInformationStruct->NameInformation.FileName)]=0;        /* 0-terminate it */
-       FileName_UnicodeString.Buffer=FileAllInformationStruct->NameInformation.FileName;
+#endif
+
+       FileNameInformationStruct->FileName[FileNameInformationStruct->FileNameLength
+                       /sizeof(*FileNameInformationStruct->FileName)]=0;       /* 0-terminate it */
+       FileName_UnicodeString.Buffer=FileNameInformationStruct->FileName;
        file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
        /* '->name' assumed for 'file_info->valid_fields' */
 
+       return GNOME_VFS_OK;
+}
+
+
+/* Use 'FileBasicInformationStruct' identifier instead of the logical 'FileBasicInformation'
+ * to prevent override of enum member 'FileBasicInformation'
+ */
+static GnomeVFSResult FileBasicInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
+               FILE_BASIC_INFORMATION *FileBasicInformationStruct)
+{
+BOOLEAN errBOOLEAN;
+ULONG tmp_ULONG;
+
        /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
-       switch (FileAllInformationStruct->BasicInformation.FileAttributes & (0
+       switch (FileBasicInformationStruct->FileAttributes & (0
                        | FILE_ATTRIBUTE_DIRECTORY
                        | FILE_ATTRIBUTE_DEVICE)) {
                case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
@@ -408,40 +481,31 @@ ULONG tmp_ULONG;
        file_info->permissions=GNOME_VFS_PERM_USER_READ;
        if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
                file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
-       if (!(FileAllInformationStruct->BasicInformation.FileAttributes & FILE_ATTRIBUTE_READONLY))
+       if (!(FileBasicInformationStruct->FileAttributes & FILE_ATTRIBUTE_READONLY))
                file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
        file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
 
-       file_info->size=FileAllInformationStruct->StandardInformation.EndOfFile.QuadPart;
-       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
-
-       file_info->block_count=FileAllInformationStruct->StandardInformation.AllocationSize.QuadPart/512;
-       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
-
-       file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
-       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
-
-       if (FileAllInformationStruct->BasicInformation.LastAccessTime.QuadPart) {       /* it may be 0 if not set */
-               errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.LastAccessTime,&tmp_ULONG);
+       if (FileBasicInformationStruct->LastAccessTime.QuadPart) {      /* it may be 0 if not set */
+               errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->LastAccessTime,&tmp_ULONG);
                g_assert(errBOOLEAN==TRUE);
                file_info->atime=tmp_ULONG;
                file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
                }
 
        /* it may be 0 if not set */
-       if (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart || FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart) {
+       if (FileBasicInformationStruct->LastWriteTime.QuadPart || FileBasicInformationStruct->ChangeTime.QuadPart) {
                errBOOLEAN=RtlTimeToSecondsSince1970(
                                /* take the more recent (==bigger) time: */
-                               (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart > FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart
-                                               ? &FileAllInformationStruct->BasicInformation.LastWriteTime : &FileAllInformationStruct->BasicInformation.ChangeTime),
+                               (FileBasicInformationStruct->LastWriteTime.QuadPart > FileBasicInformationStruct->ChangeTime.QuadPart
+                                               ? &FileBasicInformationStruct->LastWriteTime : &FileBasicInformationStruct->ChangeTime),
                                &tmp_ULONG);
                g_assert(errBOOLEAN==TRUE);
                file_info->mtime=tmp_ULONG;
                file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
                }
 
-       if (FileAllInformationStruct->BasicInformation.CreationTime.QuadPart) { /* it may be 0 if not set */
-               errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.CreationTime,&tmp_ULONG);
+       if (FileBasicInformationStruct->CreationTime.QuadPart) {        /* it may be 0 if not set */
+               errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->CreationTime,&tmp_ULONG);
                g_assert(errBOOLEAN==TRUE);
                file_info->ctime=tmp_ULONG;
                file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
@@ -451,38 +515,100 @@ ULONG tmp_ULONG;
 }
 
 
+/* Use 'FileStandardInformationStruct' identifier instead of the logical 'FileStandardInformation'
+ * to prevent override of enum member 'FileStandardInformation'
+ */
+static GnomeVFSResult FileStandardInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
+               FILE_STANDARD_INFORMATION *FileStandardInformationStruct)
+{
+       file_info->size=FileStandardInformationStruct->EndOfFile.QuadPart;
+       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
+
+       file_info->block_count=FileStandardInformationStruct->AllocationSize.QuadPart/512;
+       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
+
+       return GNOME_VFS_OK;
+}
+
+
 GnomeVFSResult captive_file_file_info_get(CaptiveFileObject *captive_file_object,
                GnomeVFSFileInfo *file_info)
 {
 NTSTATUS err;
 IO_STATUS_BLOCK file_IoStatusBlock;
-FILE_ALL_INFORMATION *FileAllInformationStruct;
+FILE_NAME_INFORMATION *FileNameInformationStruct;
+FILE_BASIC_INFORMATION *FileBasicInformationStruct;
+FILE_STANDARD_INFORMATION *FileStandardInformationStruct;
 GnomeVFSResult errvfsresult;
-char QueryFile_buf[sizeof(FILE_ALL_INFORMATION)
+char QueryFile_buf[sizeof(FILE_NAME_INFORMATION)
                +0x1000 /* max 'FileName' length, 255 should be enough */ * sizeof(WCHAR /* *FILE_ALL_INFORMATION.NameInformation.FileName */ )];
 
        g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
-       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
-       /* query */
-       FileAllInformationStruct=(void *)QueryFile_buf;
+       if (captive_file_object->vfs->is_sandbox_parent)
+               return captive_sandbox_parent_file_file_info_get(captive_file_object,file_info);
+
+       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
+       /* ntfs.sys of NT-5.1sp1 has *(FILE_BASIC_INFORMATION *)FILE_ALL_INFORMATION.BasicInformation
+        * size 0x28 although reactos includes and all the information says 0x24.
+        * fastfat.sys of NT-5.1sp1 also has the 'official' sizeof 0x24.
+        * It would be a bit of heuristic to correctly detect its expected sizeof.
+        */
+
+       file_info->valid_fields=0;
+
+       file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
+       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
+
+       /* query NameInformation */
+       FileNameInformationStruct=(void *)QueryFile_buf;
        err=NtQueryInformationFile(
                        captive_file_object->file_Handle,       /* FileHandle */
                        &file_IoStatusBlock,    /* IoStatusBlock */
                        (gpointer)QueryFile_buf,        /* FileInformation */
                        sizeof(QueryFile_buf)   /* Length */
-                                       -sizeof(*FileAllInformationStruct->NameInformation.FileName),   /* reserve space for 0-terminator */
-                       FileAllInformation);    /* FileInformationClass; =>FILE_ALL_INFORMATION */
+                                       -sizeof(*FileNameInformationStruct->FileName),  /* reserve space for a possible 0-terminator */
+                       FileNameInformation);   /* FileInformationClass; =>FILE_NAME_INFORMATION */
+       if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
+               return errvfsresult;
+       g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
+       g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
+       errvfsresult=FileNameInformationStruct_to_GnomeVFSFileInfo(file_info,FileNameInformationStruct);
+       g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
+
+       /* query BasicInformation */
+       FileBasicInformationStruct=(void *)QueryFile_buf;
+       err=NtQueryInformationFile(
+                       captive_file_object->file_Handle,       /* FileHandle */
+                       &file_IoStatusBlock,    /* IoStatusBlock */
+                       (gpointer)QueryFile_buf,        /* FileInformation */
+                       sizeof(QueryFile_buf),  /* Length */
+                       FileBasicInformation);  /* FileInformationClass; =>FILE_BASIC_INFORMATION */
        if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
                return errvfsresult;
+       g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
        g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
+       errvfsresult=FileBasicInformationStruct_to_GnomeVFSFileInfo(file_info,FileBasicInformationStruct);
+       g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 
-       /* process gathered info */
-       errvfsresult=FileAllInformationStruct_to_GnomeVFSFileInfo(file_info,FileAllInformationStruct,
-                       &file_IoStatusBlock);
+       /* query StandardInformation */
+       FileStandardInformationStruct=(void *)QueryFile_buf;
+       err=NtQueryInformationFile(
+                       captive_file_object->file_Handle,       /* FileHandle */
+                       &file_IoStatusBlock,    /* IoStatusBlock */
+                       (gpointer)QueryFile_buf,        /* FileInformation */
+                       sizeof(QueryFile_buf),  /* Length */
+                       FileStandardInformation);       /* FileInformationClass; =>FILE_STANDARD_INFORMATION */
+       if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
+               return errvfsresult;
+       g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
+       g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
+       errvfsresult=FileStandardInformationStruct_to_GnomeVFSFileInfo(file_info,FileStandardInformationStruct);
        g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
@@ -491,9 +617,13 @@ GnomeVFSResult captive_file_file_info_set(CaptiveFileObject *captive_file_object
     const GnomeVFSFileInfo *info,GnomeVFSSetFileInfoMask mask)
 {
        g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
-       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
+       if (captive_file_object->vfs->is_sandbox_parent)
+               return captive_sandbox_parent_file_file_info_set(captive_file_object,info,mask);
+
+       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
        if (mask & GNOME_VFS_SET_FILE_INFO_NAME) {
 gchar *name_dirname,*name_basename;
 UNICODE_STRING *name_UnicodeString;
@@ -536,13 +666,8 @@ GnomeVFSResult errvfsresult;
                                FileRenameInformation_structp,  /* FileInformation */
                                FileRenameInformation_struct_len,       /* Length */
                                FileRenameInformation); /* FileInformationClass */
-               if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) {
-                       g_assert_not_reached();
-                       errvfsresult=GNOME_VFS_ERROR_GENERIC;
+               if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
                        goto err_free_name_basename;
-                       }
-
-               errvfsresult=GNOME_VFS_OK;
 
 err_free_name_basename:
                g_free(name_basename);
@@ -552,6 +677,7 @@ err:
 
                if (errvfsresult!=GNOME_VFS_OK)
                        return errvfsresult;
+               g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
                }
 
        if (mask & (GNOME_VFS_SET_FILE_INFO_PERMISSIONS | GNOME_VFS_SET_FILE_INFO_TIME)) {
@@ -562,6 +688,7 @@ NTSTATUS err;
 
                /* FIXME: Everywhere is is the declaration with 4xLARGE_INTEGER+1xULONG==36 bytes
                 * but the precompiled ext2fsd.sys wants 40 bytes - why?
+                * The same case applies to ntfs.sys of NT-5.1sp1.
                 */
                g_assert(sizeof(FILE_BASIC_INFORMATION)==36);
                g_assert(sizeof(FileBasicInformation_buf)==40);
@@ -617,6 +744,7 @@ NTSTATUS err;
                /* owner ignored for W32 */
                }
 
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
@@ -629,6 +757,10 @@ IO_STATUS_BLOCK file_IoStatusBlock;
 GnomeVFSResult errvfsresult;
 
        g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
+       if (captive_file_object->vfs->is_sandbox_parent)
+               return captive_sandbox_parent_file_truncate(captive_file_object,file_size);
+
        g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
        FileEndOfFileInformation_struct.EndOfFile.QuadPart=file_size;
@@ -643,6 +775,7 @@ GnomeVFSResult errvfsresult;
                return errvfsresult;
        g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 
+       captive_leave();
        return GNOME_VFS_OK;
 }
 
@@ -650,71 +783,45 @@ GnomeVFSResult errvfsresult;
 GnomeVFSResult captive_file_move(CaptiveFileObject *captive_file_object_old,const gchar *pathname_new,gboolean force_replace)
 {
 NTSTATUS err;
-FILE_RENAME_INFORMATION FileRenameInformation_struct;
+FILE_RENAME_INFORMATION *FileRenameInformation_structp;
 IO_STATUS_BLOCK file_IoStatusBlock;
 GnomeVFSResult errvfsresult;
-gchar *pathname_new_dirname,*pathname_new_basename;
-CaptiveDirectoryObject *captive_target_directory_object;
-FILE_OBJECT *target_dir_FileObject;
-UNICODE_STRING *target_dir_FileObject_FileName_UnicodeString_local;
-BOOLEAN errboolean;
+OBJECT_ATTRIBUTES pathname_new_ObjectAttributes;
 
        g_return_val_if_fail(captive_file_object_old!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
-       g_return_val_if_fail(captive_file_object_old->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
        g_return_val_if_fail(pathname_new!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
-       pathname_new_dirname=g_path_get_dirname(pathname_new);
-       pathname_new_basename=g_path_get_basename(pathname_new);
-
-       errvfsresult=captive_directory_new_open(&captive_target_directory_object,pathname_new_dirname);
-       if (errvfsresult!=GNOME_VFS_OK)
-               goto err_free_pathnames;
-
-       err=ObReferenceObjectByHandle(
-                       captive_target_directory_object->dir_Handle,    /* Handle */
-                       (FILE_ADD_FILE | FILE_ADD_SUBDIRECTORY),        /* DesiredAccess */
-                       IoFileObjectType,       /* ObjectType */
-                       KernelMode,     /* AccessMode */
-                       (PVOID *)&target_dir_FileObject,        /* Object */
-                       NULL);  /* HandleInfo */
-       if (!NT_SUCCESS(err)) {
-               g_assert_not_reached();
-               errvfsresult=GNOME_VFS_ERROR_GENERIC;
-               goto err_close_captive_target_directory_object;
-               }
+       if (captive_file_object_old->vfs->is_sandbox_parent)
+               return captive_sandbox_parent_file_move(captive_file_object_old,pathname_new,force_replace);
 
-       /* Supply only the 'basename' to 'target_dir_FileObject->FileName'
-        * as the directory is fully determined by its other attributes.
-        */
-       target_dir_FileObject_FileName_UnicodeString_local=captive_utf8_to_UnicodeString_alloca(pathname_new_basename);
-       errboolean=RtlCreateUnicodeString(&target_dir_FileObject->FileName,
-                       target_dir_FileObject_FileName_UnicodeString_local->Buffer);
-       g_assert(errboolean==TRUE);
+       g_return_val_if_fail(captive_file_object_old->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 
-       ObDereferenceObject(target_dir_FileObject);
+       errvfsresult=captive_ObjectAttributes_init(pathname_new,&pathname_new_ObjectAttributes);
+       g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 
-       FileRenameInformation_struct.Replace=force_replace;
-       FileRenameInformation_struct.RootDir=captive_target_directory_object->dir_Handle;       /* ->'target_dir_FileObject' */
-       FileRenameInformation_struct.FileNameLength=0;  /* provided by 'FileRenameInformation_struct.RootDir' */
+       FileRenameInformation_structp=
+                       g_alloca(sizeof(*FileRenameInformation_structp)+pathname_new_ObjectAttributes.ObjectName->MaximumLength);
+       FileRenameInformation_structp->Replace=force_replace;
+       FileRenameInformation_structp->RootDir=0;       /* AFAIK never set by orig W32 */
+       FileRenameInformation_structp->FileNameLength=pathname_new_ObjectAttributes.ObjectName->Length;
+       memcpy(FileRenameInformation_structp->FileName,pathname_new_ObjectAttributes.ObjectName->Buffer,
+                       pathname_new_ObjectAttributes.ObjectName->MaximumLength);
 
        err=NtSetInformationFile(
                        captive_file_object_old->file_Handle,   /* FileHandle */
                        &file_IoStatusBlock,    /* IoStatusBlock */
-                       &FileRenameInformation_struct,  /* FileInformation */
-                       sizeof(FileRenameInformation_struct),   /* Length */
+                       FileRenameInformation_structp,  /* FileInformation */
+                       sizeof(*FileRenameInformation_structp)+pathname_new_ObjectAttributes.ObjectName->MaximumLength, /* Length */
                        FileRenameInformation); /* FileInformationClass */
-       if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) {
-               g_assert_not_reached();
-               errvfsresult=GNOME_VFS_ERROR_GENERIC;
-               }
+       if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
+               goto err_free_ObjectAttributes;
+       g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 
-       /* PASSTHRU */
+       errvfsresult=GNOME_VFS_OK;
 
-err_close_captive_target_directory_object:
-       g_object_unref(captive_target_directory_object);
-err_free_pathnames:
-       g_free(pathname_new_dirname);
-       g_free(pathname_new_basename);
+err_free_ObjectAttributes:
+       g_free(pathname_new_ObjectAttributes.ObjectName);       /* left from captive_file_uri_parent_init() */
 
+       captive_leave();
        return errvfsresult;
 }