mirror of
git://source.winehq.org/git/wine.git
synced 2024-09-16 05:47:02 +00:00
ab3416c61f
In a container with a non-trivial user namespace, we cannot rely on libudev communicating with udevd as a way to monitor device nodes, for the following reasons: * If uid 0 from the host is not mapped to uid 0 in the container, libudev cannot authenticate netlink messages from the host, because their sender uid appears to be the overflowuid. Resolving this by mapping uid 0 into the container is not allowed when creating user namespaces as an unprivileged user, and even when running as a privileged user, it might be desirable for the real uid 0 to not be mapped as a way to harden the security boundary between container and host. * Depending on the container configuration, initial enumeration might not be able to read /run/udev from the host system. If it can't, sysfs attributes will still work because those are read directly from the kernel via sysfs, but udev properties coming from user-space rules (in particular ID_INPUT_JOYSTICK and friends) will appear to be missing. * The protocols between udevd and libudev (netlink messages for monitoring, and /run/udev for initial enumeration) are considered to be private to a particular version of udev, and are not a stable API; but in a container, we cannot expect that our copy of libudev is at exactly the same version as udevd on the host system. Sidestep this by adding a code path that continues to use libudev for the parts that work regardless of whether udevd is running or can be communicated with. Signed-off-by: Rémi Bernon <rbernon@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
147 lines
3 KiB
C
147 lines
3 KiB
C
/*
|
|
* Copyright 2021 Rémi Bernon for CodeWeavers
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#ifndef __WINEBUS_UNIXLIB_H
|
|
#define __WINEBUS_UNIXLIB_H
|
|
|
|
#include <stdarg.h>
|
|
|
|
#include <windef.h>
|
|
#include <winbase.h>
|
|
#include <winternl.h>
|
|
#include <ddk/hidclass.h>
|
|
#include <hidusage.h>
|
|
|
|
#include "wine/debug.h"
|
|
#include "wine/list.h"
|
|
|
|
struct device_desc
|
|
{
|
|
DWORD vid;
|
|
DWORD pid;
|
|
DWORD version;
|
|
DWORD input;
|
|
DWORD uid;
|
|
BOOL is_gamepad;
|
|
|
|
WCHAR manufacturer[MAX_PATH];
|
|
WCHAR product[MAX_PATH];
|
|
WCHAR serialnumber[MAX_PATH];
|
|
};
|
|
|
|
struct sdl_bus_options
|
|
{
|
|
BOOL map_controllers;
|
|
/* freed after bus_init */
|
|
DWORD mappings_count;
|
|
char **mappings;
|
|
};
|
|
|
|
struct udev_bus_options
|
|
{
|
|
BOOL disable_hidraw;
|
|
BOOL disable_input;
|
|
BOOL disable_udevd;
|
|
};
|
|
|
|
struct iohid_bus_options
|
|
{
|
|
};
|
|
|
|
struct unix_device;
|
|
|
|
enum bus_event_type
|
|
{
|
|
BUS_EVENT_TYPE_NONE,
|
|
BUS_EVENT_TYPE_DEVICE_REMOVED,
|
|
BUS_EVENT_TYPE_DEVICE_CREATED,
|
|
BUS_EVENT_TYPE_INPUT_REPORT,
|
|
};
|
|
|
|
struct bus_event
|
|
{
|
|
enum bus_event_type type;
|
|
struct list entry;
|
|
|
|
struct unix_device *device;
|
|
union
|
|
{
|
|
struct
|
|
{
|
|
struct device_desc desc;
|
|
} device_created;
|
|
|
|
struct
|
|
{
|
|
USHORT length;
|
|
BYTE buffer[1];
|
|
} input_report;
|
|
};
|
|
};
|
|
|
|
struct device_create_params
|
|
{
|
|
struct device_desc desc;
|
|
struct unix_device *device;
|
|
};
|
|
|
|
struct device_descriptor_params
|
|
{
|
|
struct unix_device *iface;
|
|
BYTE *buffer;
|
|
DWORD length;
|
|
DWORD *out_length;
|
|
};
|
|
|
|
struct device_report_params
|
|
{
|
|
struct unix_device *iface;
|
|
HID_XFER_PACKET *packet;
|
|
IO_STATUS_BLOCK *io;
|
|
};
|
|
|
|
enum unix_funcs
|
|
{
|
|
sdl_init,
|
|
sdl_wait,
|
|
sdl_stop,
|
|
udev_init,
|
|
udev_wait,
|
|
udev_stop,
|
|
iohid_init,
|
|
iohid_wait,
|
|
iohid_stop,
|
|
mouse_create,
|
|
keyboard_create,
|
|
device_remove,
|
|
device_start,
|
|
device_get_report_descriptor,
|
|
device_set_output_report,
|
|
device_get_feature_report,
|
|
device_set_feature_report,
|
|
};
|
|
|
|
static inline const char *debugstr_device_desc(struct device_desc *desc)
|
|
{
|
|
if (!desc) return "(null)";
|
|
return wine_dbg_sprintf("{vid %04x, pid %04x, version %04x, input %d, uid %08x, is_gamepad %u}",
|
|
desc->vid, desc->pid, desc->version, desc->input, desc->uid, desc->is_gamepad);
|
|
}
|
|
|
|
#endif /* __WINEBUS_UNIXLIB_H */
|