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server: Use generic kernel object list to store client device file pointer. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2019-04-25 14:55:10 +02:00 committed by Alexandre Julliard
parent a77a1a5433
commit 52ff9bd3ac
2 changed files with 20 additions and 13 deletions
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3
dlls/ntoskrnl.exe/ntoskrnl.c
View File

@ -518,8 +518,7 @@ static const WCHAR file_type_name[] = {'F','i','l','e',0};
static struct _OBJECT_TYPE file_type = {
file_type_name,
create_file_object,
free_kernel_object
create_file_object
};
POBJECT_TYPE IoFileObjectType = &file_type;

30
server/device.c
View File

@ -170,7 +170,7 @@ struct device_file
struct object obj; /* object header */
struct device *device; /* device for this file */
struct fd *fd; /* file descriptor for irp */
client_ptr_t user_ptr; /* opaque ptr for client side */
struct list kernel_object; /* list of kernel object pointers */
int closed; /* closed file flag */
struct list entry; /* entry in device list */
struct list requests; /* list of pending irp requests */
@ -178,6 +178,7 @@ struct device_file
static void device_file_dump( struct object *obj, int verbose );
static struct fd *device_file_get_fd( struct object *obj );
static struct list *device_file_get_kernel_obj_list( struct object *obj );
static int device_file_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
static void device_file_destroy( struct object *obj );
static enum server_fd_type device_file_get_fd_type( struct fd *fd );
@ -204,7 +205,7 @@ static const struct object_ops device_file_ops =
no_link_name, /* link_name */
NULL, /* unlink_name */
no_open_file, /* open_file */
no_kernel_obj_list, /* get_kernel_obj_list */
device_file_get_kernel_obj_list, /* get_kernel_obj_list */
device_file_close_handle, /* close_handle */
device_file_destroy /* destroy */
};
@ -432,7 +433,7 @@ static struct object *device_open_file( struct object *obj, unsigned int access,
file->device = (struct device *)grab_object( device );
file->closed = 0;
file->user_ptr = 0;
list_init( &file->kernel_object );
list_init( &file->requests );
list_add_tail( &device->files, &file->entry );
if (device->unix_path)
@ -494,6 +495,12 @@ static struct fd *device_file_get_fd( struct object *obj )
return (struct fd *)grab_object( file->fd );
}
static struct list *device_file_get_kernel_obj_list( struct object *obj )
{
struct device_file *file = (struct device_file *)obj;
return &file->kernel_object;
}
static int device_file_close_handle( struct object *obj, struct process *process, obj_handle_t handle )
{
struct device_file *file = (struct device_file *)obj;
@ -531,26 +538,26 @@ static void device_file_destroy( struct object *obj )
release_object( file->device );
}
static void fill_irp_params( struct irp_call *irp, irp_params_t *params )
static void fill_irp_params( struct device_manager *manager, struct irp_call *irp, irp_params_t *params )
{
*params = irp->params;
switch (params->major)
{
case IRP_MJ_CLOSE:
params->close.file = irp->file->user_ptr;
params->close.file = get_kernel_object_ptr( manager, &irp->file->obj );
break;
case IRP_MJ_READ:
params->read.file = irp->file->user_ptr;
params->read.file = get_kernel_object_ptr( manager, &irp->file->obj );
break;
case IRP_MJ_WRITE:
params->write.file = irp->file->user_ptr;
params->write.file = get_kernel_object_ptr( manager, &irp->file->obj );
break;
case IRP_MJ_FLUSH_BUFFERS:
params->flush.file = irp->file->user_ptr;
params->flush.file = get_kernel_object_ptr( manager, &irp->file->obj );
break;
case IRP_MJ_DEVICE_CONTROL:
params->ioctl.file = irp->file->user_ptr;
params->ioctl.file = get_kernel_object_ptr( manager, &irp->file->obj );
break;
}
}
@ -873,7 +880,7 @@ DECL_HANDLER(get_next_device_request)
if (iosb->in_size > get_reply_max_size()) set_error( STATUS_BUFFER_OVERFLOW );
else if (!irp->file || (reply->next = alloc_handle( current->process, irp, 0, 0 )))
{
fill_irp_params( irp, &reply->params );
fill_irp_params( manager, irp, &reply->params );
set_reply_data_ptr( iosb->in_data, iosb->in_size );
iosb->in_data = NULL;
iosb->in_size = 0;
@ -895,7 +902,8 @@ DECL_HANDLER(set_irp_result)
if ((irp = (struct irp_call *)get_handle_obj( current->process, req->handle, 0, &irp_call_ops )))
{
if (irp->file) irp->file->user_ptr = req->file_ptr;
if (irp->file && irp->file->device->manager)
set_kernel_object( irp->file->device->manager, &irp->file->obj, req->file_ptr );
set_irp_result( irp, req->status, get_req_data(), get_req_data_size(), req->size );
close_handle( current->process, req->handle ); /* avoid an extra round-trip for close */
release_object( irp );