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git://source.winehq.org/git/wine.git
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![Jacek Caban](/assets/img/avatar_default.png)
Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
1107 lines
36 KiB
C
1107 lines
36 KiB
C
/*
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* Server-side device support
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*
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* Copyright (C) 2007 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include "wine/rbtree.h"
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#include <assert.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winternl.h"
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#include "ddk/wdm.h"
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#include "object.h"
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#include "file.h"
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#include "handle.h"
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#include "request.h"
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#include "process.h"
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/* IRP object */
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struct irp_call
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{
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struct object obj; /* object header */
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struct list dev_entry; /* entry in device queue */
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struct list mgr_entry; /* entry in manager queue */
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struct device_file *file; /* file containing this irp */
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struct thread *thread; /* thread that queued the irp */
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struct async *async; /* pending async op */
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irp_params_t params; /* irp parameters */
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struct iosb *iosb; /* I/O status block */
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int canceled; /* the call was canceled */
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client_ptr_t user_ptr; /* client side pointer */
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};
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static void irp_call_dump( struct object *obj, int verbose );
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static int irp_call_signaled( struct object *obj, struct wait_queue_entry *entry );
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static void irp_call_destroy( struct object *obj );
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static const struct object_ops irp_call_ops =
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{
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sizeof(struct irp_call), /* size */
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irp_call_dump, /* dump */
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no_get_type, /* get_type */
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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irp_call_signaled, /* signaled */
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no_satisfied, /* satisfied */
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no_signal, /* signal */
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no_get_fd, /* get_fd */
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no_map_access, /* map_access */
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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no_lookup_name, /* lookup_name */
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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no_open_file, /* open_file */
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no_kernel_obj_list, /* get_kernel_obj_list */
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no_close_handle, /* close_handle */
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irp_call_destroy /* destroy */
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};
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/* device manager (a list of devices managed by the same client process) */
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struct device_manager
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{
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struct object obj; /* object header */
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struct list devices; /* list of devices */
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struct list requests; /* list of pending irps across all devices */
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struct irp_call *current_call; /* call currently executed on client side */
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struct wine_rb_tree kernel_objects; /* map of objects that have client side pointer associated */
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};
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static void device_manager_dump( struct object *obj, int verbose );
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static int device_manager_signaled( struct object *obj, struct wait_queue_entry *entry );
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static void device_manager_destroy( struct object *obj );
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static const struct object_ops device_manager_ops =
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{
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sizeof(struct device_manager), /* size */
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device_manager_dump, /* dump */
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no_get_type, /* get_type */
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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device_manager_signaled, /* signaled */
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no_satisfied, /* satisfied */
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no_signal, /* signal */
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no_get_fd, /* get_fd */
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no_map_access, /* map_access */
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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no_lookup_name, /* lookup_name */
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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no_open_file, /* open_file */
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no_kernel_obj_list, /* get_kernel_obj_list */
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no_close_handle, /* close_handle */
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device_manager_destroy /* destroy */
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};
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/* device (a single device object) */
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struct device
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{
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struct object obj; /* object header */
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struct device_manager *manager; /* manager for this device (or NULL if deleted) */
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char *unix_path; /* path to unix device if any */
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struct list kernel_object; /* list of kernel object pointers */
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struct list entry; /* entry in device manager list */
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struct list files; /* list of open files */
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};
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static void device_dump( struct object *obj, int verbose );
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static struct object_type *device_get_type( struct object *obj );
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static void device_destroy( struct object *obj );
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static struct object *device_open_file( struct object *obj, unsigned int access,
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unsigned int sharing, unsigned int options );
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static struct list *device_get_kernel_obj_list( struct object *obj );
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static const struct object_ops device_ops =
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{
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sizeof(struct device), /* size */
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device_dump, /* dump */
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device_get_type, /* get_type */
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no_add_queue, /* add_queue */
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NULL, /* remove_queue */
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NULL, /* signaled */
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no_satisfied, /* satisfied */
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no_signal, /* signal */
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no_get_fd, /* get_fd */
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default_fd_map_access, /* map_access */
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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no_lookup_name, /* lookup_name */
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directory_link_name, /* link_name */
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default_unlink_name, /* unlink_name */
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device_open_file, /* open_file */
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device_get_kernel_obj_list, /* get_kernel_obj_list */
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no_close_handle, /* close_handle */
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device_destroy /* destroy */
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};
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/* device file (an open file handle to a device) */
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struct device_file
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{
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struct object obj; /* object header */
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struct device *device; /* device for this file */
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struct fd *fd; /* file descriptor for irp */
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struct list kernel_object; /* list of kernel object pointers */
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int closed; /* closed file flag */
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struct list entry; /* entry in device list */
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struct list requests; /* list of pending irp requests */
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};
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static void device_file_dump( struct object *obj, int verbose );
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static struct fd *device_file_get_fd( struct object *obj );
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static struct list *device_file_get_kernel_obj_list( struct object *obj );
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static int device_file_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
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static void device_file_destroy( struct object *obj );
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static enum server_fd_type device_file_get_fd_type( struct fd *fd );
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static int device_file_read( struct fd *fd, struct async *async, file_pos_t pos );
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static int device_file_write( struct fd *fd, struct async *async, file_pos_t pos );
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static int device_file_flush( struct fd *fd, struct async *async );
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static int device_file_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
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static void device_file_reselect_async( struct fd *fd, struct async_queue *queue );
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static const struct object_ops device_file_ops =
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{
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sizeof(struct device_file), /* size */
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device_file_dump, /* dump */
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file_get_type, /* get_type */
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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default_fd_signaled, /* signaled */
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no_satisfied, /* satisfied */
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no_signal, /* signal */
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device_file_get_fd, /* get_fd */
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default_fd_map_access, /* map_access */
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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no_lookup_name, /* lookup_name */
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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no_open_file, /* open_file */
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device_file_get_kernel_obj_list, /* get_kernel_obj_list */
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device_file_close_handle, /* close_handle */
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device_file_destroy /* destroy */
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};
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static const struct fd_ops device_file_fd_ops =
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{
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default_fd_get_poll_events, /* get_poll_events */
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default_poll_event, /* poll_event */
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device_file_get_fd_type, /* get_fd_type */
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device_file_read, /* read */
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device_file_write, /* write */
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device_file_flush, /* flush */
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default_fd_get_file_info, /* get_file_info */
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no_fd_get_volume_info, /* get_volume_info */
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device_file_ioctl, /* ioctl */
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default_fd_queue_async, /* queue_async */
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device_file_reselect_async /* reselect_async */
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};
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struct list *no_kernel_obj_list( struct object *obj )
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{
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return NULL;
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}
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struct kernel_object
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{
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struct device_manager *manager;
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client_ptr_t user_ptr;
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struct object *object;
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int owned;
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struct list list_entry;
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struct wine_rb_entry rb_entry;
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};
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static int compare_kernel_object( const void *k, const struct wine_rb_entry *entry )
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{
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struct kernel_object *ptr = WINE_RB_ENTRY_VALUE( entry, struct kernel_object, rb_entry );
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return memcmp( k, &ptr->user_ptr, sizeof(client_ptr_t) );
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}
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static struct kernel_object *kernel_object_from_obj( struct device_manager *manager, struct object *obj )
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{
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struct kernel_object *kernel_object;
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struct list *list;
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if (!(list = obj->ops->get_kernel_obj_list( obj ))) return NULL;
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LIST_FOR_EACH_ENTRY( kernel_object, list, struct kernel_object, list_entry )
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{
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if (kernel_object->manager != manager) continue;
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return kernel_object;
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}
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return NULL;
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}
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static client_ptr_t get_kernel_object_ptr( struct device_manager *manager, struct object *obj )
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{
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struct kernel_object *kernel_object = kernel_object_from_obj( manager, obj );
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return kernel_object ? kernel_object->user_ptr : 0;
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}
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static struct kernel_object *set_kernel_object( struct device_manager *manager, struct object *obj, client_ptr_t user_ptr )
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{
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struct kernel_object *kernel_object;
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struct list *list;
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if (!(list = obj->ops->get_kernel_obj_list( obj ))) return NULL;
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if (!(kernel_object = malloc( sizeof(*kernel_object) ))) return NULL;
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kernel_object->manager = manager;
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kernel_object->user_ptr = user_ptr;
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kernel_object->object = obj;
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kernel_object->owned = 0;
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if (wine_rb_put( &manager->kernel_objects, &user_ptr, &kernel_object->rb_entry ))
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{
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/* kernel_object pointer already set */
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free( kernel_object );
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return NULL;
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}
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list_add_head( list, &kernel_object->list_entry );
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return kernel_object;
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}
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static struct kernel_object *kernel_object_from_ptr( struct device_manager *manager, client_ptr_t client_ptr )
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{
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struct wine_rb_entry *entry = wine_rb_get( &manager->kernel_objects, &client_ptr );
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return entry ? WINE_RB_ENTRY_VALUE( entry, struct kernel_object, rb_entry ) : NULL;
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}
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static void grab_kernel_object( struct kernel_object *ptr )
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{
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if (!ptr->owned)
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{
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grab_object( ptr->object );
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ptr->owned = 1;
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}
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}
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static void irp_call_dump( struct object *obj, int verbose )
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{
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struct irp_call *irp = (struct irp_call *)obj;
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fprintf( stderr, "IRP call file=%p\n", irp->file );
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}
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static int irp_call_signaled( struct object *obj, struct wait_queue_entry *entry )
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{
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struct irp_call *irp = (struct irp_call *)obj;
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return !irp->file; /* file is cleared once the irp has completed */
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}
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static void irp_call_destroy( struct object *obj )
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{
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struct irp_call *irp = (struct irp_call *)obj;
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if (irp->async)
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{
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async_terminate( irp->async, STATUS_CANCELLED );
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release_object( irp->async );
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}
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if (irp->iosb) release_object( irp->iosb );
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if (irp->file) release_object( irp->file );
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if (irp->thread) release_object( irp->thread );
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}
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static struct irp_call *create_irp( struct device_file *file, const irp_params_t *params, struct async *async )
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{
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struct irp_call *irp;
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if (file && !file->device->manager) /* it has been deleted */
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{
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set_error( STATUS_FILE_DELETED );
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return NULL;
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}
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if ((irp = alloc_object( &irp_call_ops )))
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{
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irp->file = file ? (struct device_file *)grab_object( file ) : NULL;
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irp->thread = NULL;
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irp->async = NULL;
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irp->params = *params;
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irp->iosb = NULL;
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irp->canceled = 0;
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irp->user_ptr = 0;
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if (async) irp->iosb = async_get_iosb( async );
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if (!irp->iosb && !(irp->iosb = create_iosb( NULL, 0, 0 )))
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{
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release_object( irp );
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irp = NULL;
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}
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}
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return irp;
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}
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static void set_irp_result( struct irp_call *irp, unsigned int status,
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const void *out_data, data_size_t out_size, data_size_t result )
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{
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struct device_file *file = irp->file;
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struct iosb *iosb = irp->iosb;
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if (!file) return; /* already finished */
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/* FIXME: handle the STATUS_PENDING case */
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iosb->status = status;
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iosb->result = result;
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iosb->out_size = min( iosb->out_size, out_size );
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if (iosb->out_size && !(iosb->out_data = memdup( out_data, iosb->out_size )))
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iosb->out_size = 0;
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/* remove it from the device queue */
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list_remove( &irp->dev_entry );
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irp->file = NULL;
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if (irp->async)
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{
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if (result) status = STATUS_ALERTED;
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async_terminate( irp->async, status );
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release_object( irp->async );
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irp->async = NULL;
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}
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wake_up( &irp->obj, 0 );
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release_object( irp ); /* no longer on the device queue */
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release_object( file );
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}
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static void device_dump( struct object *obj, int verbose )
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{
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fputs( "Device\n", stderr );
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}
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static struct object_type *device_get_type( struct object *obj )
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{
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static const WCHAR name[] = {'D','e','v','i','c','e'};
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static const struct unicode_str str = { name, sizeof(name) };
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return get_object_type( &str );
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}
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static void device_destroy( struct object *obj )
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{
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struct device *device = (struct device *)obj;
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assert( list_empty( &device->files ));
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free( device->unix_path );
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if (device->manager) list_remove( &device->entry );
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}
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static void add_irp_to_queue( struct device_manager *manager, struct irp_call *irp, struct thread *thread )
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{
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grab_object( irp ); /* grab reference for queued irp */
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irp->thread = thread ? (struct thread *)grab_object( thread ) : NULL;
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if (irp->file) list_add_tail( &irp->file->requests, &irp->dev_entry );
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list_add_tail( &manager->requests, &irp->mgr_entry );
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if (list_head( &manager->requests ) == &irp->mgr_entry) wake_up( &manager->obj, 0 ); /* first one */
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}
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static struct object *device_open_file( struct object *obj, unsigned int access,
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unsigned int sharing, unsigned int options )
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{
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struct device *device = (struct device *)obj;
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struct device_file *file;
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if (!(file = alloc_object( &device_file_ops ))) return NULL;
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file->device = (struct device *)grab_object( device );
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file->closed = 0;
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list_init( &file->kernel_object );
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list_init( &file->requests );
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list_add_tail( &device->files, &file->entry );
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if (device->unix_path)
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{
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mode_t mode = 0666;
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access = file->obj.ops->map_access( &file->obj, access );
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file->fd = open_fd( NULL, device->unix_path, O_NONBLOCK | O_LARGEFILE,
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&mode, access, sharing, options );
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if (file->fd) set_fd_user( file->fd, &device_file_fd_ops, &file->obj );
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}
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else file->fd = alloc_pseudo_fd( &device_file_fd_ops, &file->obj, options );
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if (!file->fd)
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{
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release_object( file );
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return NULL;
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}
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allow_fd_caching( file->fd );
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if (device->manager)
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{
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struct irp_call *irp;
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irp_params_t params;
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memset( ¶ms, 0, sizeof(params) );
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params.create.type = IRP_CALL_CREATE;
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params.create.access = access;
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params.create.sharing = sharing;
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params.create.options = options;
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params.create.device = get_kernel_object_ptr( device->manager, &device->obj );
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if ((irp = create_irp( file, ¶ms, NULL )))
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{
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add_irp_to_queue( device->manager, irp, current );
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release_object( irp );
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}
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}
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return &file->obj;
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}
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|
|
static struct list *device_get_kernel_obj_list( struct object *obj )
|
|
{
|
|
struct device *device = (struct device *)obj;
|
|
return &device->kernel_object;
|
|
}
|
|
|
|
static void device_file_dump( struct object *obj, int verbose )
|
|
{
|
|
struct device_file *file = (struct device_file *)obj;
|
|
|
|
fprintf( stderr, "File on device %p\n", file->device );
|
|
}
|
|
|
|
static struct fd *device_file_get_fd( struct object *obj )
|
|
{
|
|
struct device_file *file = (struct device_file *)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;
|
|
|
|
if (!file->closed && file->device->manager && obj->handle_count == 1) /* last handle */
|
|
{
|
|
struct irp_call *irp;
|
|
irp_params_t params;
|
|
|
|
file->closed = 1;
|
|
memset( ¶ms, 0, sizeof(params) );
|
|
params.close.type = IRP_CALL_CLOSE;
|
|
|
|
if ((irp = create_irp( file, ¶ms, NULL )))
|
|
{
|
|
add_irp_to_queue( file->device->manager, irp, current );
|
|
release_object( irp );
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void device_file_destroy( struct object *obj )
|
|
{
|
|
struct device_file *file = (struct device_file *)obj;
|
|
struct irp_call *irp, *next;
|
|
|
|
LIST_FOR_EACH_ENTRY_SAFE( irp, next, &file->requests, struct irp_call, dev_entry )
|
|
{
|
|
list_remove( &irp->dev_entry );
|
|
release_object( irp ); /* no longer on the device queue */
|
|
}
|
|
if (file->fd) release_object( file->fd );
|
|
list_remove( &file->entry );
|
|
release_object( file->device );
|
|
}
|
|
|
|
static int fill_irp_params( struct device_manager *manager, struct irp_call *irp, irp_params_t *params )
|
|
{
|
|
switch (irp->params.type)
|
|
{
|
|
case IRP_CALL_NONE:
|
|
case IRP_CALL_FREE:
|
|
case IRP_CALL_CANCEL:
|
|
break;
|
|
case IRP_CALL_CREATE:
|
|
irp->params.create.file = alloc_handle( current->process, irp->file,
|
|
irp->params.create.access, 0 );
|
|
if (!irp->params.create.file) return 0;
|
|
break;
|
|
case IRP_CALL_CLOSE:
|
|
irp->params.close.file = get_kernel_object_ptr( manager, &irp->file->obj );
|
|
break;
|
|
case IRP_CALL_READ:
|
|
irp->params.read.file = get_kernel_object_ptr( manager, &irp->file->obj );
|
|
irp->params.read.out_size = irp->iosb->out_size;
|
|
break;
|
|
case IRP_CALL_WRITE:
|
|
irp->params.write.file = get_kernel_object_ptr( manager, &irp->file->obj );
|
|
break;
|
|
case IRP_CALL_FLUSH:
|
|
irp->params.flush.file = get_kernel_object_ptr( manager, &irp->file->obj );
|
|
break;
|
|
case IRP_CALL_IOCTL:
|
|
irp->params.ioctl.file = get_kernel_object_ptr( manager, &irp->file->obj );
|
|
irp->params.ioctl.out_size = irp->iosb->out_size;
|
|
break;
|
|
}
|
|
|
|
*params = irp->params;
|
|
return 1;
|
|
}
|
|
|
|
static void free_irp_params( struct irp_call *irp )
|
|
{
|
|
switch (irp->params.type)
|
|
{
|
|
case IRP_CALL_CREATE:
|
|
close_handle( current->process, irp->params.create.file );
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* queue an irp to the device */
|
|
static int queue_irp( struct device_file *file, const irp_params_t *params, struct async *async )
|
|
{
|
|
struct irp_call *irp = create_irp( file, params, async );
|
|
if (!irp) return 0;
|
|
|
|
fd_queue_async( file->fd, async, ASYNC_TYPE_WAIT );
|
|
irp->async = (struct async *)grab_object( async );
|
|
add_irp_to_queue( file->device->manager, irp, current );
|
|
release_object( irp );
|
|
set_error( STATUS_PENDING );
|
|
return 0;
|
|
}
|
|
|
|
static enum server_fd_type device_file_get_fd_type( struct fd *fd )
|
|
{
|
|
return FD_TYPE_DEVICE;
|
|
}
|
|
|
|
static int device_file_read( struct fd *fd, struct async *async, file_pos_t pos )
|
|
{
|
|
struct device_file *file = get_fd_user( fd );
|
|
irp_params_t params;
|
|
|
|
memset( ¶ms, 0, sizeof(params) );
|
|
params.read.type = IRP_CALL_READ;
|
|
params.read.key = 0;
|
|
params.read.pos = pos;
|
|
return queue_irp( file, ¶ms, async );
|
|
}
|
|
|
|
static int device_file_write( struct fd *fd, struct async *async, file_pos_t pos )
|
|
{
|
|
struct device_file *file = get_fd_user( fd );
|
|
irp_params_t params;
|
|
|
|
memset( ¶ms, 0, sizeof(params) );
|
|
params.write.type = IRP_CALL_WRITE;
|
|
params.write.key = 0;
|
|
params.write.pos = pos;
|
|
return queue_irp( file, ¶ms, async );
|
|
}
|
|
|
|
static int device_file_flush( struct fd *fd, struct async *async )
|
|
{
|
|
struct device_file *file = get_fd_user( fd );
|
|
irp_params_t params;
|
|
|
|
memset( ¶ms, 0, sizeof(params) );
|
|
params.flush.type = IRP_CALL_FLUSH;
|
|
return queue_irp( file, ¶ms, async );
|
|
}
|
|
|
|
static int device_file_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
|
|
{
|
|
struct device_file *file = get_fd_user( fd );
|
|
irp_params_t params;
|
|
|
|
memset( ¶ms, 0, sizeof(params) );
|
|
params.ioctl.type = IRP_CALL_IOCTL;
|
|
params.ioctl.code = code;
|
|
return queue_irp( file, ¶ms, async );
|
|
}
|
|
|
|
static void cancel_irp_call( struct irp_call *irp )
|
|
{
|
|
struct irp_call *cancel_irp;
|
|
irp_params_t params;
|
|
|
|
irp->canceled = 1;
|
|
if (!irp->user_ptr || !irp->file || !irp->file->device->manager) return;
|
|
|
|
memset( ¶ms, 0, sizeof(params) );
|
|
params.cancel.type = IRP_CALL_CANCEL;
|
|
params.cancel.irp = irp->user_ptr;
|
|
|
|
if ((cancel_irp = create_irp( NULL, ¶ms, NULL )))
|
|
{
|
|
add_irp_to_queue( irp->file->device->manager, cancel_irp, NULL );
|
|
release_object( cancel_irp );
|
|
}
|
|
|
|
set_irp_result( irp, STATUS_CANCELLED, NULL, 0, 0 );
|
|
}
|
|
|
|
static void device_file_reselect_async( struct fd *fd, struct async_queue *queue )
|
|
{
|
|
struct device_file *file = get_fd_user( fd );
|
|
struct irp_call *irp;
|
|
|
|
LIST_FOR_EACH_ENTRY( irp, &file->requests, struct irp_call, dev_entry )
|
|
if (irp->iosb->status != STATUS_PENDING)
|
|
{
|
|
cancel_irp_call( irp );
|
|
return;
|
|
}
|
|
}
|
|
|
|
static struct device *create_device( struct object *root, const struct unicode_str *name,
|
|
struct device_manager *manager )
|
|
{
|
|
struct device *device;
|
|
|
|
if ((device = create_named_object( root, &device_ops, name, 0, NULL )))
|
|
{
|
|
device->unix_path = NULL;
|
|
device->manager = manager;
|
|
list_add_tail( &manager->devices, &device->entry );
|
|
list_init( &device->kernel_object );
|
|
list_init( &device->files );
|
|
}
|
|
return device;
|
|
}
|
|
|
|
struct object *create_unix_device( struct object *root, const struct unicode_str *name,
|
|
const char *unix_path )
|
|
{
|
|
struct device *device;
|
|
|
|
if ((device = create_named_object( root, &device_ops, name, 0, NULL )))
|
|
{
|
|
device->unix_path = strdup( unix_path );
|
|
device->manager = NULL; /* no manager, requests go straight to the Unix device */
|
|
list_init( &device->kernel_object );
|
|
list_init( &device->files );
|
|
}
|
|
return &device->obj;
|
|
|
|
}
|
|
|
|
/* terminate requests when the underlying device is deleted */
|
|
static void delete_file( struct device_file *file )
|
|
{
|
|
struct irp_call *irp, *next;
|
|
|
|
/* terminate all pending requests */
|
|
LIST_FOR_EACH_ENTRY_SAFE( irp, next, &file->requests, struct irp_call, dev_entry )
|
|
{
|
|
list_remove( &irp->mgr_entry );
|
|
set_irp_result( irp, STATUS_FILE_DELETED, NULL, 0, 0 );
|
|
}
|
|
}
|
|
|
|
static void delete_device( struct device *device )
|
|
{
|
|
struct device_file *file, *next;
|
|
|
|
if (!device->manager) return; /* already deleted */
|
|
|
|
LIST_FOR_EACH_ENTRY_SAFE( file, next, &device->files, struct device_file, entry )
|
|
delete_file( file );
|
|
|
|
unlink_named_object( &device->obj );
|
|
list_remove( &device->entry );
|
|
device->manager = NULL;
|
|
}
|
|
|
|
|
|
static void device_manager_dump( struct object *obj, int verbose )
|
|
{
|
|
fprintf( stderr, "Device manager\n" );
|
|
}
|
|
|
|
static int device_manager_signaled( struct object *obj, struct wait_queue_entry *entry )
|
|
{
|
|
struct device_manager *manager = (struct device_manager *)obj;
|
|
|
|
return !list_empty( &manager->requests );
|
|
}
|
|
|
|
static void device_manager_destroy( struct object *obj )
|
|
{
|
|
struct device_manager *manager = (struct device_manager *)obj;
|
|
struct kernel_object *kernel_object;
|
|
struct list *ptr;
|
|
|
|
if (manager->current_call)
|
|
{
|
|
release_object( manager->current_call );
|
|
manager->current_call = NULL;
|
|
}
|
|
|
|
while (manager->kernel_objects.root)
|
|
{
|
|
kernel_object = WINE_RB_ENTRY_VALUE( manager->kernel_objects.root, struct kernel_object, rb_entry );
|
|
wine_rb_remove( &manager->kernel_objects, &kernel_object->rb_entry );
|
|
list_remove( &kernel_object->list_entry );
|
|
if (kernel_object->owned) release_object( kernel_object->object );
|
|
free( kernel_object );
|
|
}
|
|
|
|
while ((ptr = list_head( &manager->devices )))
|
|
{
|
|
struct device *device = LIST_ENTRY( ptr, struct device, entry );
|
|
delete_device( device );
|
|
}
|
|
|
|
while ((ptr = list_head( &manager->requests )))
|
|
{
|
|
struct irp_call *irp = LIST_ENTRY( ptr, struct irp_call, mgr_entry );
|
|
list_remove( &irp->mgr_entry );
|
|
assert( !irp->file && !irp->async );
|
|
release_object( irp );
|
|
}
|
|
}
|
|
|
|
static struct device_manager *create_device_manager(void)
|
|
{
|
|
struct device_manager *manager;
|
|
|
|
if ((manager = alloc_object( &device_manager_ops )))
|
|
{
|
|
manager->current_call = NULL;
|
|
list_init( &manager->devices );
|
|
list_init( &manager->requests );
|
|
wine_rb_init( &manager->kernel_objects, compare_kernel_object );
|
|
}
|
|
return manager;
|
|
}
|
|
|
|
void free_kernel_objects( struct object *obj )
|
|
{
|
|
struct list *ptr, *list;
|
|
|
|
if (!(list = obj->ops->get_kernel_obj_list( obj ))) return;
|
|
|
|
while ((ptr = list_head( list )))
|
|
{
|
|
struct kernel_object *kernel_object = LIST_ENTRY( ptr, struct kernel_object, list_entry );
|
|
struct irp_call *irp;
|
|
irp_params_t params;
|
|
|
|
assert( !kernel_object->owned );
|
|
|
|
memset( ¶ms, 0, sizeof(params) );
|
|
params.free.type = IRP_CALL_FREE;
|
|
params.free.obj = kernel_object->user_ptr;
|
|
|
|
if ((irp = create_irp( NULL, ¶ms, NULL )))
|
|
{
|
|
add_irp_to_queue( kernel_object->manager, irp, NULL );
|
|
release_object( irp );
|
|
}
|
|
|
|
list_remove( &kernel_object->list_entry );
|
|
wine_rb_remove( &kernel_object->manager->kernel_objects, &kernel_object->rb_entry );
|
|
free( kernel_object );
|
|
}
|
|
}
|
|
|
|
|
|
/* create a device manager */
|
|
DECL_HANDLER(create_device_manager)
|
|
{
|
|
struct device_manager *manager = create_device_manager();
|
|
|
|
if (manager)
|
|
{
|
|
reply->handle = alloc_handle( current->process, manager, req->access, req->attributes );
|
|
release_object( manager );
|
|
}
|
|
}
|
|
|
|
|
|
/* create a device */
|
|
DECL_HANDLER(create_device)
|
|
{
|
|
struct device *device;
|
|
struct unicode_str name = get_req_unicode_str();
|
|
struct device_manager *manager;
|
|
struct object *root = NULL;
|
|
|
|
if (!(manager = (struct device_manager *)get_handle_obj( current->process, req->manager,
|
|
0, &device_manager_ops )))
|
|
return;
|
|
|
|
if (req->rootdir && !(root = get_directory_obj( current->process, req->rootdir )))
|
|
{
|
|
release_object( manager );
|
|
return;
|
|
}
|
|
|
|
if ((device = create_device( root, &name, manager )))
|
|
{
|
|
struct kernel_object *ptr = set_kernel_object( manager, &device->obj, req->user_ptr );
|
|
if (ptr)
|
|
grab_kernel_object( ptr );
|
|
else
|
|
set_error( STATUS_NO_MEMORY );
|
|
release_object( device );
|
|
}
|
|
|
|
if (root) release_object( root );
|
|
release_object( manager );
|
|
}
|
|
|
|
|
|
/* delete a device */
|
|
DECL_HANDLER(delete_device)
|
|
{
|
|
struct device_manager *manager;
|
|
struct kernel_object *ref;
|
|
struct device *device;
|
|
|
|
if (!(manager = (struct device_manager *)get_handle_obj( current->process, req->manager,
|
|
0, &device_manager_ops )))
|
|
return;
|
|
|
|
if ((ref = kernel_object_from_ptr( manager, req->device )) && ref->object->ops == &device_ops)
|
|
{
|
|
device = (struct device *)grab_object( ref->object );
|
|
delete_device( device );
|
|
release_object( device );
|
|
}
|
|
else set_error( STATUS_INVALID_HANDLE );
|
|
|
|
release_object( manager );
|
|
}
|
|
|
|
|
|
/* retrieve the next pending device irp request */
|
|
DECL_HANDLER(get_next_device_request)
|
|
{
|
|
struct irp_call *irp;
|
|
struct device_manager *manager;
|
|
struct list *ptr;
|
|
struct iosb *iosb;
|
|
|
|
if (!(manager = (struct device_manager *)get_handle_obj( current->process, req->manager,
|
|
0, &device_manager_ops )))
|
|
return;
|
|
|
|
if (req->prev) close_handle( current->process, req->prev ); /* avoid an extra round-trip for close */
|
|
|
|
/* process result of previous call */
|
|
if (manager->current_call)
|
|
{
|
|
irp = manager->current_call;
|
|
irp->user_ptr = req->user_ptr;
|
|
|
|
if (req->status)
|
|
set_irp_result( irp, req->status, NULL, 0, 0 );
|
|
if (irp->canceled)
|
|
/* if it was canceled during dispatch, we couldn't queue cancel call without client pointer,
|
|
* so we need to do it now */
|
|
cancel_irp_call( irp );
|
|
else if (irp->async)
|
|
set_async_pending( irp->async, irp->file && is_fd_overlapped( irp->file->fd ) );
|
|
|
|
free_irp_params( irp );
|
|
release_object( irp );
|
|
manager->current_call = NULL;
|
|
}
|
|
|
|
clear_error();
|
|
|
|
if ((ptr = list_head( &manager->requests )))
|
|
{
|
|
struct thread *thread;
|
|
|
|
irp = LIST_ENTRY( ptr, struct irp_call, mgr_entry );
|
|
|
|
thread = irp->thread ? irp->thread : current;
|
|
reply->client_thread = get_kernel_object_ptr( manager, &thread->obj );
|
|
reply->client_tid = get_thread_id( thread );
|
|
|
|
iosb = irp->iosb;
|
|
reply->in_size = iosb->in_size;
|
|
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 )))
|
|
{
|
|
if (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;
|
|
list_remove( &irp->mgr_entry );
|
|
list_init( &irp->mgr_entry );
|
|
/* we already own the object if it's only on manager queue */
|
|
if (irp->file) grab_object( irp );
|
|
manager->current_call = irp;
|
|
}
|
|
else close_handle( current->process, reply->next );
|
|
}
|
|
}
|
|
else set_error( STATUS_PENDING );
|
|
|
|
release_object( manager );
|
|
}
|
|
|
|
|
|
/* store results of an async irp */
|
|
DECL_HANDLER(set_irp_result)
|
|
{
|
|
struct irp_call *irp;
|
|
|
|
if ((irp = (struct irp_call *)get_handle_obj( current->process, req->handle, 0, &irp_call_ops )))
|
|
{
|
|
if (!irp->canceled)
|
|
set_irp_result( irp, req->status, get_req_data(), get_req_data_size(), req->size );
|
|
else if(irp->user_ptr) /* cancel already queued */
|
|
set_error( STATUS_MORE_PROCESSING_REQUIRED );
|
|
else /* we may be still dispatching the IRP. don't bother queuing cancel if it's already complete */
|
|
irp->canceled = 0;
|
|
close_handle( current->process, req->handle ); /* avoid an extra round-trip for close */
|
|
release_object( irp );
|
|
}
|
|
}
|
|
|
|
|
|
/* get kernel pointer from server object */
|
|
DECL_HANDLER(get_kernel_object_ptr)
|
|
{
|
|
struct device_manager *manager;
|
|
struct object *object = NULL;
|
|
|
|
if (!(manager = (struct device_manager *)get_handle_obj( current->process, req->manager,
|
|
0, &device_manager_ops )))
|
|
return;
|
|
|
|
if ((object = get_handle_obj( current->process, req->handle, 0, NULL )))
|
|
{
|
|
reply->user_ptr = get_kernel_object_ptr( manager, object );
|
|
release_object( object );
|
|
}
|
|
|
|
release_object( manager );
|
|
}
|
|
|
|
|
|
/* associate kernel pointer with server object */
|
|
DECL_HANDLER(set_kernel_object_ptr)
|
|
{
|
|
struct device_manager *manager;
|
|
struct object *object = NULL;
|
|
|
|
if (!(manager = (struct device_manager *)get_handle_obj( current->process, req->manager,
|
|
0, &device_manager_ops )))
|
|
return;
|
|
|
|
if (!(object = get_handle_obj( current->process, req->handle, 0, NULL )))
|
|
{
|
|
release_object( manager );
|
|
return;
|
|
}
|
|
|
|
if (!set_kernel_object( manager, object, req->user_ptr ))
|
|
set_error( STATUS_INVALID_HANDLE );
|
|
|
|
release_object( object );
|
|
release_object( manager );
|
|
}
|
|
|
|
|
|
/* grab server object reference from kernel object pointer */
|
|
DECL_HANDLER(grab_kernel_object)
|
|
{
|
|
struct device_manager *manager;
|
|
struct kernel_object *ref;
|
|
|
|
if (!(manager = (struct device_manager *)get_handle_obj( current->process, req->manager,
|
|
0, &device_manager_ops )))
|
|
return;
|
|
|
|
if ((ref = kernel_object_from_ptr( manager, req->user_ptr )) && !ref->owned)
|
|
grab_kernel_object( ref );
|
|
else
|
|
set_error( STATUS_INVALID_HANDLE );
|
|
|
|
release_object( manager );
|
|
}
|
|
|
|
|
|
/* release server object reference from kernel object pointer */
|
|
DECL_HANDLER(release_kernel_object)
|
|
{
|
|
struct device_manager *manager;
|
|
struct kernel_object *ref;
|
|
|
|
if (!(manager = (struct device_manager *)get_handle_obj( current->process, req->manager,
|
|
0, &device_manager_ops )))
|
|
return;
|
|
|
|
if ((ref = kernel_object_from_ptr( manager, req->user_ptr )) && ref->owned)
|
|
{
|
|
ref->owned = 0;
|
|
release_object( ref->object );
|
|
}
|
|
else set_error( STATUS_INVALID_HANDLE );
|
|
|
|
release_object( manager );
|
|
}
|
|
|
|
|
|
/* get handle from kernel object pointer */
|
|
DECL_HANDLER(get_kernel_object_handle)
|
|
{
|
|
struct device_manager *manager;
|
|
struct kernel_object *ref;
|
|
|
|
if (!(manager = (struct device_manager *)get_handle_obj( current->process, req->manager,
|
|
0, &device_manager_ops )))
|
|
return;
|
|
|
|
if ((ref = kernel_object_from_ptr( manager, req->user_ptr )))
|
|
reply->handle = alloc_handle( current->process, ref->object, req->access, 0 );
|
|
else
|
|
set_error( STATUS_INVALID_HANDLE );
|
|
|
|
release_object( manager );
|
|
}
|