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Sweden-Number/dlls/mountmgr.sys/device.c

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/*
* Dynamic devices support
*
* Copyright 2006 Alexandre Julliard
*
* 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
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/time.h>
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#define NONAMELESSUNION
#include "mountmgr.h"
#include "winreg.h"
#include "winuser.h"
#include "dbt.h"
#include "wine/library.h"
#include "wine/list.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(mountmgr);
#define MAX_DOS_DRIVES 26
#define MAX_PORTS 256
static const WCHAR drive_types[][8] =
{
{ 0 }, /* DEVICE_UNKNOWN */
{ 0 }, /* DEVICE_HARDDISK */
{'h','d',0}, /* DEVICE_HARDDISK_VOL */
{'f','l','o','p','p','y',0}, /* DEVICE_FLOPPY */
{'c','d','r','o','m',0}, /* DEVICE_CDROM */
{'c','d','r','o','m',0}, /* DEVICE_DVD */
{'n','e','t','w','o','r','k',0}, /* DEVICE_NETWORK */
{'r','a','m','d','i','s','k',0} /* DEVICE_RAMDISK */
};
static const WCHAR drives_keyW[] = {'S','o','f','t','w','a','r','e','\\',
'W','i','n','e','\\','D','r','i','v','e','s',0};
static const WCHAR ports_keyW[] = {'S','o','f','t','w','a','r','e','\\',
'W','i','n','e','\\','P','o','r','t','s',0};
static const WCHAR scsi_keyW[] = {'H','A','R','D','W','A','R','E','\\','D','E','V','I','C','E','M','A','P','\\','S','c','s','i',0};
static const WCHAR scsi_port_keyW[] = {'S','c','s','i',' ','P','o','r','t',' ','%','d',0};
static const WCHAR scsi_bus_keyW[] = {'S','c','s','i',' ','B','u','s',' ','%','d',0};
static const WCHAR target_id_keyW[] = {'T','a','r','g','e','t',' ','I','d',' ','%','d',0};
static const WCHAR lun_keyW[] = {'L','o','g','i','c','a','l',' ','U','n','i','t',' ','I','d',' ','%','d',0};
static const WCHAR devnameW[] = {'D','e','v','i','c','e','N','a','m','e',0};
struct disk_device
{
enum device_type type; /* drive type */
DEVICE_OBJECT *dev_obj; /* disk device allocated for this volume */
UNICODE_STRING name; /* device name */
UNICODE_STRING symlink; /* device symlink if any */
STORAGE_DEVICE_NUMBER devnum; /* device number info */
char *unix_device; /* unix device path */
char *unix_mount; /* unix mount point path */
};
struct volume
{
struct list entry; /* entry in volumes list */
struct disk_device *device; /* disk device */
char *udi; /* unique identifier for dynamic volumes */
unsigned int ref; /* ref count */
GUID guid; /* volume uuid */
struct mount_point *mount; /* Volume{xxx} mount point */
};
struct dos_drive
{
struct list entry; /* entry in drives list */
struct volume *volume; /* volume for this drive */
int drive; /* drive letter (0 = A: etc.) */
struct mount_point *mount; /* DosDevices mount point */
};
static struct list drives_list = LIST_INIT(drives_list);
static struct list volumes_list = LIST_INIT(volumes_list);
static DRIVER_OBJECT *harddisk_driver;
static DRIVER_OBJECT *serial_driver;
static DRIVER_OBJECT *parallel_driver;
static CRITICAL_SECTION device_section;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &device_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": device_section") }
};
static CRITICAL_SECTION device_section = { &critsect_debug, -1, 0, 0, 0, 0 };
static char *get_dosdevices_path( char **device )
{
const char *config_dir = wine_get_config_dir();
size_t len = strlen(config_dir) + sizeof("/dosdevices/com256");
char *path = HeapAlloc( GetProcessHeap(), 0, len );
if (path)
{
strcpy( path, config_dir );
strcat( path, "/dosdevices/a::" );
*device = path + len - sizeof("com256");
}
return path;
}
static char *strdupA( const char *str )
{
char *ret;
if (!str) return NULL;
if ((ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(str) + 1 ))) strcpy( ret, str );
return ret;
}
static const GUID *get_default_uuid( int letter )
{
static GUID guid;
guid.Data4[7] = 'A' + letter;
return &guid;
}
/* read a Unix symlink; returned buffer must be freed by caller */
static char *read_symlink( const char *path )
{
char *buffer;
int ret, size = 128;
for (;;)
{
if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, size )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return 0;
}
ret = readlink( path, buffer, size );
if (ret == -1)
{
RtlFreeHeap( GetProcessHeap(), 0, buffer );
return 0;
}
if (ret != size)
{
buffer[ret] = 0;
return buffer;
}
RtlFreeHeap( GetProcessHeap(), 0, buffer );
size *= 2;
}
}
/* update a symlink if it changed; return TRUE if updated */
static void update_symlink( const char *path, const char *dest, const char *orig_dest )
{
if (dest && dest[0])
{
if (!orig_dest || strcmp( orig_dest, dest ))
{
unlink( path );
symlink( dest, path );
}
}
else unlink( path );
}
/* send notification about a change to a given drive */
static void send_notify( int drive, int code )
{
DEV_BROADCAST_VOLUME info;
info.dbcv_size = sizeof(info);
info.dbcv_devicetype = DBT_DEVTYP_VOLUME;
info.dbcv_reserved = 0;
info.dbcv_unitmask = 1 << drive;
info.dbcv_flags = DBTF_MEDIA;
BroadcastSystemMessageW( BSF_FORCEIFHUNG|BSF_QUERY, NULL,
WM_DEVICECHANGE, code, (LPARAM)&info );
}
/* create the disk device for a given volume */
static NTSTATUS create_disk_device( enum device_type type, struct disk_device **device_ret )
{
static const WCHAR harddiskvolW[] = {'\\','D','e','v','i','c','e',
'\\','H','a','r','d','d','i','s','k','V','o','l','u','m','e','%','u',0};
static const WCHAR harddiskW[] = {'\\','D','e','v','i','c','e','\\','H','a','r','d','d','i','s','k','%','u',0};
static const WCHAR cdromW[] = {'\\','D','e','v','i','c','e','\\','C','d','R','o','m','%','u',0};
static const WCHAR floppyW[] = {'\\','D','e','v','i','c','e','\\','F','l','o','p','p','y','%','u',0};
static const WCHAR ramdiskW[] = {'\\','D','e','v','i','c','e','\\','R','a','m','d','i','s','k','%','u',0};
static const WCHAR cdromlinkW[] = {'\\','?','?','\\','C','d','R','o','m','%','u',0};
static const WCHAR physdriveW[] = {'\\','?','?','\\','P','h','y','s','i','c','a','l','D','r','i','v','e','%','u',0};
UINT i, first = 0;
NTSTATUS status = 0;
const WCHAR *format = NULL;
const WCHAR *link_format = NULL;
UNICODE_STRING name;
DEVICE_OBJECT *dev_obj;
struct disk_device *device;
switch(type)
{
case DEVICE_UNKNOWN:
case DEVICE_HARDDISK:
case DEVICE_NETWORK: /* FIXME */
format = harddiskW;
link_format = physdriveW;
break;
case DEVICE_HARDDISK_VOL:
format = harddiskvolW;
first = 1; /* harddisk volumes start counting from 1 */
break;
case DEVICE_FLOPPY:
format = floppyW;
break;
case DEVICE_CDROM:
case DEVICE_DVD:
format = cdromW;
link_format = cdromlinkW;
break;
case DEVICE_RAMDISK:
format = ramdiskW;
break;
}
name.MaximumLength = (strlenW(format) + 10) * sizeof(WCHAR);
name.Buffer = RtlAllocateHeap( GetProcessHeap(), 0, name.MaximumLength );
for (i = first; i < 32; i++)
{
sprintfW( name.Buffer, format, i );
name.Length = strlenW(name.Buffer) * sizeof(WCHAR);
status = IoCreateDevice( harddisk_driver, sizeof(*device), &name, 0, 0, FALSE, &dev_obj );
if (status != STATUS_OBJECT_NAME_COLLISION) break;
}
if (!status)
{
device = dev_obj->DeviceExtension;
device->dev_obj = dev_obj;
device->name = name;
device->type = type;
device->unix_device = NULL;
device->unix_mount = NULL;
device->symlink.Buffer = NULL;
if (link_format)
{
UNICODE_STRING symlink;
symlink.MaximumLength = (strlenW(link_format) + 10) * sizeof(WCHAR);
if ((symlink.Buffer = RtlAllocateHeap( GetProcessHeap(), 0, symlink.MaximumLength)))
{
sprintfW( symlink.Buffer, link_format, i );
symlink.Length = strlenW(symlink.Buffer) * sizeof(WCHAR);
if (!IoCreateSymbolicLink( &symlink, &name )) device->symlink = symlink;
}
}
switch (type)
{
case DEVICE_FLOPPY:
case DEVICE_RAMDISK:
device->devnum.DeviceType = FILE_DEVICE_DISK;
device->devnum.DeviceNumber = i;
device->devnum.PartitionNumber = ~0u;
break;
case DEVICE_CDROM:
device->devnum.DeviceType = FILE_DEVICE_CD_ROM;
device->devnum.DeviceNumber = i;
device->devnum.PartitionNumber = ~0u;
break;
case DEVICE_DVD:
device->devnum.DeviceType = FILE_DEVICE_DVD;
device->devnum.DeviceNumber = i;
device->devnum.PartitionNumber = ~0u;
break;
case DEVICE_UNKNOWN:
case DEVICE_HARDDISK:
case DEVICE_NETWORK: /* FIXME */
device->devnum.DeviceType = FILE_DEVICE_DISK;
device->devnum.DeviceNumber = i;
device->devnum.PartitionNumber = 0;
break;
case DEVICE_HARDDISK_VOL:
device->devnum.DeviceType = FILE_DEVICE_DISK;
device->devnum.DeviceNumber = 0;
device->devnum.PartitionNumber = i;
break;
}
*device_ret = device;
TRACE( "created device %s\n", debugstr_w(name.Buffer) );
}
else
{
FIXME( "IoCreateDevice %s got %x\n", debugstr_w(name.Buffer), status );
RtlFreeUnicodeString( &name );
}
return status;
}
/* delete the disk device for a given drive */
static void delete_disk_device( struct disk_device *device )
{
TRACE( "deleting device %s\n", debugstr_w(device->name.Buffer) );
if (device->symlink.Buffer)
{
IoDeleteSymbolicLink( &device->symlink );
RtlFreeUnicodeString( &device->symlink );
}
RtlFreeHeap( GetProcessHeap(), 0, device->unix_device );
RtlFreeHeap( GetProcessHeap(), 0, device->unix_mount );
RtlFreeUnicodeString( &device->name );
IoDeleteDevice( device->dev_obj );
}
/* grab another reference to a volume */
static struct volume *grab_volume( struct volume *volume )
{
volume->ref++;
return volume;
}
/* release a volume and delete the corresponding disk device when refcount is 0 */
static unsigned int release_volume( struct volume *volume )
{
unsigned int ret = --volume->ref;
if (!ret)
{
TRACE( "%s udi %s\n", debugstr_guid(&volume->guid), debugstr_a(volume->udi) );
assert( !volume->udi );
list_remove( &volume->entry );
if (volume->mount) delete_mount_point( volume->mount );
delete_disk_device( volume->device );
RtlFreeHeap( GetProcessHeap(), 0, volume );
}
return ret;
}
/* set the volume udi */
static void set_volume_udi( struct volume *volume, const char *udi )
{
if (udi)
{
assert( !volume->udi );
/* having a udi means the HAL side holds an extra reference */
if ((volume->udi = strdupA( udi ))) grab_volume( volume );
}
else if (volume->udi)
{
RtlFreeHeap( GetProcessHeap(), 0, volume->udi );
volume->udi = NULL;
release_volume( volume );
}
}
/* create a disk volume */
static NTSTATUS create_volume( const char *udi, enum device_type type, struct volume **volume_ret )
{
struct volume *volume;
NTSTATUS status;
if (!(volume = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*volume) )))
return STATUS_NO_MEMORY;
if (!(status = create_disk_device( type, &volume->device )))
{
if (udi) set_volume_udi( volume, udi );
list_add_tail( &volumes_list, &volume->entry );
*volume_ret = grab_volume( volume );
}
else RtlFreeHeap( GetProcessHeap(), 0, volume );
return status;
}
/* create the disk device for a given volume */
static NTSTATUS create_dos_device( struct volume *volume, const char *udi, int letter,
enum device_type type, struct dos_drive **drive_ret )
{
struct dos_drive *drive;
NTSTATUS status;
if (!(drive = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*drive) ))) return STATUS_NO_MEMORY;
drive->drive = letter;
drive->mount = NULL;
if (volume)
{
if (udi) set_volume_udi( volume, udi );
drive->volume = grab_volume( volume );
status = STATUS_SUCCESS;
}
else status = create_volume( udi, type, &drive->volume );
if (status == STATUS_SUCCESS)
{
list_add_tail( &drives_list, &drive->entry );
*drive_ret = drive;
}
else RtlFreeHeap( GetProcessHeap(), 0, drive );
return status;
}
/* delete the disk device for a given drive */
static void delete_dos_device( struct dos_drive *drive )
{
list_remove( &drive->entry );
if (drive->mount) delete_mount_point( drive->mount );
release_volume( drive->volume );
RtlFreeHeap( GetProcessHeap(), 0, drive );
}
/* find a volume that matches the parameters */
static struct volume *find_matching_volume( const char *udi, const char *device,
const char *mount_point, enum device_type type )
{
struct volume *volume;
struct disk_device *disk_device;
LIST_FOR_EACH_ENTRY( volume, &volumes_list, struct volume, entry )
{
int match = 0;
/* when we have a udi we only match drives added manually */
if (udi && volume->udi) continue;
/* and when we don't have a udi we only match dynamic drives */
if (!udi && !volume->udi) continue;
disk_device = volume->device;
if (disk_device->type != type) continue;
if (device && disk_device->unix_device)
{
if (strcmp( device, disk_device->unix_device )) continue;
match++;
}
if (mount_point && disk_device->unix_mount)
{
if (strcmp( mount_point, disk_device->unix_mount )) continue;
match++;
}
if (!match) continue;
TRACE( "found matching volume %s for device %s mount %s type %u\n",
debugstr_guid(&volume->guid), debugstr_a(device), debugstr_a(mount_point), type );
return grab_volume( volume );
}
return NULL;
}
/* change the information for an existing volume */
static NTSTATUS set_volume_info( struct volume *volume, struct dos_drive *drive, const char *device,
const char *mount_point, enum device_type type, const GUID *guid )
{
void *id = NULL;
unsigned int id_len = 0;
struct disk_device *disk_device = volume->device;
NTSTATUS status;
if (type != disk_device->type)
{
if ((status = create_disk_device( type, &disk_device ))) return status;
if (volume->mount)
{
delete_mount_point( volume->mount );
volume->mount = NULL;
}
if (drive && drive->mount)
{
delete_mount_point( drive->mount );
drive->mount = NULL;
}
delete_disk_device( volume->device );
volume->device = disk_device;
}
else
{
RtlFreeHeap( GetProcessHeap(), 0, disk_device->unix_device );
RtlFreeHeap( GetProcessHeap(), 0, disk_device->unix_mount );
}
disk_device->unix_device = strdupA( device );
disk_device->unix_mount = strdupA( mount_point );
if (guid && memcmp( &volume->guid, guid, sizeof(volume->guid) ))
{
volume->guid = *guid;
if (volume->mount)
{
delete_mount_point( volume->mount );
volume->mount = NULL;
}
}
if (!volume->mount)
volume->mount = add_volume_mount_point( disk_device->dev_obj, &disk_device->name, &volume->guid );
if (drive && !drive->mount)
drive->mount = add_dosdev_mount_point( disk_device->dev_obj, &disk_device->name, drive->drive );
if (disk_device->unix_mount)
{
id = disk_device->unix_mount;
id_len = strlen( disk_device->unix_mount ) + 1;
}
if (volume->mount) set_mount_point_id( volume->mount, id, id_len );
if (drive && drive->mount) set_mount_point_id( drive->mount, id, id_len );
return STATUS_SUCCESS;
}
/* change the drive letter or volume for an existing drive */
static void set_drive_info( struct dos_drive *drive, int letter, struct volume *volume )
{
if (drive->drive != letter)
{
if (drive->mount) delete_mount_point( drive->mount );
drive->mount = NULL;
drive->drive = letter;
}
if (drive->volume != volume)
{
if (drive->mount) delete_mount_point( drive->mount );
drive->mount = NULL;
grab_volume( volume );
release_volume( drive->volume );
drive->volume = volume;
}
}
static inline BOOL is_valid_device( struct stat *st )
{
#if defined(linux) || defined(__sun__)
return S_ISBLK( st->st_mode );
#else
/* disks are char devices on *BSD */
return S_ISCHR( st->st_mode );
#endif
}
/* find or create a DOS drive for the corresponding device */
static int add_drive( const char *device, enum device_type type )
{
char *path, *p;
char in_use[26];
struct stat dev_st, drive_st;
int drive, first, last, avail = 0;
if (stat( device, &dev_st ) == -1 || !is_valid_device( &dev_st )) return -1;
if (!(path = get_dosdevices_path( &p ))) return -1;
memset( in_use, 0, sizeof(in_use) );
switch (type)
{
case DEVICE_FLOPPY:
first = 0;
last = 2;
break;
case DEVICE_CDROM:
case DEVICE_DVD:
first = 3;
last = 26;
break;
default:
first = 2;
last = 26;
break;
}
while (avail != -1)
{
avail = -1;
for (drive = first; drive < last; drive++)
{
if (in_use[drive]) continue; /* already checked */
*p = 'a' + drive;
if (stat( path, &drive_st ) == -1)
{
if (lstat( path, &drive_st ) == -1 && errno == ENOENT) /* this is a candidate */
{
if (avail == -1)
{
p[2] = 0;
/* if mount point symlink doesn't exist either, it's available */
if (lstat( path, &drive_st ) == -1 && errno == ENOENT) avail = drive;
p[2] = ':';
}
}
else in_use[drive] = 1;
}
else
{
in_use[drive] = 1;
if (!is_valid_device( &drive_st )) continue;
if (dev_st.st_rdev == drive_st.st_rdev) goto done;
}
}
if (avail != -1)
{
/* try to use the one we found */
drive = avail;
*p = 'a' + drive;
if (symlink( device, path ) != -1) goto done;
/* failed, retry the search */
}
}
drive = -1;
done:
HeapFree( GetProcessHeap(), 0, path );
return drive;
}
/* create devices for mapped drives */
static void create_drive_devices(void)
{
char *path, *p, *link, *device;
struct dos_drive *drive;
struct volume *volume;
unsigned int i;
HKEY drives_key;
enum device_type drive_type;
WCHAR driveW[] = {'a',':',0};
if (!(path = get_dosdevices_path( &p ))) return;
if (RegOpenKeyW( HKEY_LOCAL_MACHINE, drives_keyW, &drives_key )) drives_key = 0;
for (i = 0; i < MAX_DOS_DRIVES; i++)
{
p[0] = 'a' + i;
p[2] = 0;
if (!(link = read_symlink( path ))) continue;
p[2] = ':';
device = read_symlink( path );
drive_type = i < 2 ? DEVICE_FLOPPY : DEVICE_HARDDISK_VOL;
if (drives_key)
{
WCHAR buffer[32];
DWORD j, type, size = sizeof(buffer);
driveW[0] = 'a' + i;
if (!RegQueryValueExW( drives_key, driveW, NULL, &type, (BYTE *)buffer, &size ) &&
type == REG_SZ)
{
for (j = 0; j < ARRAY_SIZE(drive_types); j++)
if (drive_types[j][0] && !strcmpiW( buffer, drive_types[j] ))
{
drive_type = j;
break;
}
if (drive_type == DEVICE_FLOPPY && i >= 2) drive_type = DEVICE_HARDDISK;
}
}
volume = find_matching_volume( NULL, device, link, drive_type );
if (!create_dos_device( volume, NULL, i, drive_type, &drive ))
{
/* don't reset uuid if we used an existing volume */
const GUID *guid = volume ? NULL : get_default_uuid(i);
set_volume_info( drive->volume, drive, device, link, drive_type, guid );
}
else
{
RtlFreeHeap( GetProcessHeap(), 0, link );
RtlFreeHeap( GetProcessHeap(), 0, device );
}
if (volume) release_volume( volume );
}
RegCloseKey( drives_key );
RtlFreeHeap( GetProcessHeap(), 0, path );
}
/* open the "Logical Unit" key for a given SCSI address */
static HKEY get_scsi_device_lun_key( SCSI_ADDRESS *scsi_addr )
{
WCHAR dataW[50];
HKEY scsi_key, port_key, bus_key, target_key, lun_key;
if (RegOpenKeyExW( HKEY_LOCAL_MACHINE, scsi_keyW, 0, KEY_READ|KEY_WRITE, &scsi_key )) return NULL;
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), scsi_port_keyW, scsi_addr->PortNumber );
if (RegCreateKeyExW( scsi_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &port_key, NULL )) return NULL;
RegCloseKey( scsi_key );
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), scsi_bus_keyW, scsi_addr->PathId );
if (RegCreateKeyExW( port_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &bus_key, NULL )) return NULL;
RegCloseKey( port_key );
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), target_id_keyW, scsi_addr->TargetId );
if (RegCreateKeyExW( bus_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &target_key, NULL )) return NULL;
RegCloseKey( bus_key );
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), lun_keyW, scsi_addr->Lun );
if (RegCreateKeyExW( target_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &lun_key, NULL )) return NULL;
RegCloseKey( target_key );
return lun_key;
}
/* fill in the "Logical Unit" key for a given SCSI address */
void create_scsi_entry( SCSI_ADDRESS *scsi_addr, UINT init_id, const char *driver, UINT type, const char *model, const UNICODE_STRING *dev )
{
static UCHAR tape_no = 0;
static const WCHAR tapeW[] = {'T','a','p','e','%','d',0};
static const WCHAR init_id_keyW[] = {'I','n','i','t','i','a','t','o','r',' ','I','d',' ','%','d',0};
static const WCHAR driverW[] = {'D','r','i','v','e','r',0};
static const WCHAR bus_time_scanW[] = {'F','i','r','s','t','B','u','s','T','i','m','e','S','c','a','n','I','n','M','s',0};
static const WCHAR typeW[] = {'T','y','p','e',0};
static const WCHAR identW[] = {'I','d','e','n','t','i','f','i','e','r',0};
WCHAR dataW[50];
DWORD sizeW;
DWORD value;
const char *data;
HKEY scsi_key;
HKEY port_key;
HKEY bus_key;
HKEY target_key;
HKEY lun_key;
if (RegOpenKeyExW( HKEY_LOCAL_MACHINE, scsi_keyW, 0, KEY_READ|KEY_WRITE, &scsi_key )) return;
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), scsi_port_keyW, scsi_addr->PortNumber );
if (RegCreateKeyExW( scsi_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &port_key, NULL )) return;
RegCloseKey( scsi_key );
RtlMultiByteToUnicodeN( dataW, sizeof(dataW), &sizeW, driver, strlen(driver)+1);
RegSetValueExW( port_key, driverW, 0, REG_SZ, (const BYTE *)dataW, sizeW );
value = 10;
RegSetValueExW( port_key, bus_time_scanW, 0, REG_DWORD, (const BYTE *)&value, sizeof(value));
value = 0;
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), scsi_bus_keyW, scsi_addr->PathId );
if (RegCreateKeyExW( port_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &bus_key, NULL )) return;
RegCloseKey( port_key );
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), init_id_keyW, init_id );
if (RegCreateKeyExW( bus_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &target_key, NULL )) return;
RegCloseKey( target_key );
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), target_id_keyW, scsi_addr->TargetId );
if (RegCreateKeyExW( bus_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &target_key, NULL )) return;
RegCloseKey( bus_key );
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), lun_keyW, scsi_addr->Lun );
if (RegCreateKeyExW( target_key, dataW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &lun_key, NULL )) return;
RegCloseKey( target_key );
switch (type)
{
case SCSI_DISK_PERIPHERAL: data = "DiskPeripheral"; break;
case SCSI_TAPE_PERIPHERAL: data = "TapePeripheral"; break;
case SCSI_PRINTER_PERIPHERAL: data = "PrinterPeripheral"; break;
case SCSI_WORM_PERIPHERAL: data = "WormPeripheral"; break;
case SCSI_CDROM_PERIPHERAL: data = "CdRomPeripheral"; break;
case SCSI_SCANNER_PERIPHERAL: data = "ScannerPeripheral"; break;
case SCSI_OPTICAL_DISK_PERIPHERAL: data = "OpticalDiskPeripheral"; break;
case SCSI_MEDIUM_CHANGER_PERIPHERAL: data = "MediumChangerPeripheral"; break;
case SCSI_COMMS_PERIPHERAL: data = "CommunicationsPeripheral"; break;
case SCSI_ASC_GRAPHICS_PERIPHERAL:
case SCSI_ASC_GRAPHICS2_PERIPHERAL: data = "ASCPrePressGraphicsPeripheral"; break;
case SCSI_ARRAY_PERIPHERAL: data = "ArrayPeripheral"; break;
case SCSI_ENCLOSURE_PERIPHERAL: data = "EnclosurePeripheral"; break;
case SCSI_REDUCED_DISK_PERIPHERAL: data = "RBCPeripheral"; break;
case SCSI_CARD_READER_PERIPHERAL: data = "CardReaderPeripheral"; break;
case SCSI_BRIDGE_PERIPHERAL: data = "BridgePeripheral"; break;
case SCSI_OBJECT_STORAGE_PERIPHERAL: /* Object-based storage devices */
case SCSI_DRIVE_CONTROLLER_PERIPHERAL: /* Automation/drive controllers */
case SCSI_REDUCED_CDROM_PERIPHERAL: /* Reduced-commands MM devices */
case SCSI_PROCESSOR_PERIPHERAL: /* Processor devices (considered to be "Other" by Windows) */
default: data = "OtherPeripheral"; break;
}
RtlMultiByteToUnicodeN( dataW, sizeof(dataW), &sizeW, data, strlen(data)+1);
RegSetValueExW( lun_key, typeW, 0, REG_SZ, (const BYTE *)dataW, sizeW );
RtlMultiByteToUnicodeN( dataW, sizeof(dataW), &sizeW, model, strlen(model)+1);
RegSetValueExW( lun_key, identW, 0, REG_SZ, (const BYTE *)dataW, sizeW );
if (dev)
{
WCHAR *buffer = memchrW( dev->Buffer+1, '\\', dev->Length )+1;
ULONG length = dev->Length - (buffer - dev->Buffer)*sizeof(WCHAR);
RegSetValueExW( lun_key, devnameW, 0, REG_SZ, (const BYTE *)buffer, length );
}
else if (type == SCSI_TAPE_PERIPHERAL)
{
snprintfW( dataW, sizeof(dataW)/sizeof(*dataW), tapeW, tape_no++ );
RegSetValueExW( lun_key, devnameW, 0, REG_SZ, (const BYTE *)dataW, strlenW( dataW ) );
}
RegCloseKey( lun_key );
}
/* set the "DeviceName" for a given SCSI address */
void set_scsi_device_name( SCSI_ADDRESS *scsi_addr, const UNICODE_STRING *dev )
{
HKEY lun_key;
WCHAR *buffer;
ULONG length;
lun_key = get_scsi_device_lun_key( scsi_addr );
buffer = memchrW( dev->Buffer+1, '\\', dev->Length )+1;
length = dev->Length - (buffer - dev->Buffer)*sizeof(WCHAR);
RegSetValueExW( lun_key, devnameW, 0, REG_SZ, (const BYTE *)buffer, length );
RegCloseKey( lun_key );
}
/* create a new disk volume */
NTSTATUS add_volume( const char *udi, const char *device, const char *mount_point,
enum device_type type, const GUID *guid )
{
struct volume *volume;
NTSTATUS status = STATUS_SUCCESS;
TRACE( "adding %s device %s mount %s type %u uuid %s\n", debugstr_a(udi),
debugstr_a(device), debugstr_a(mount_point), type, debugstr_guid(guid) );
EnterCriticalSection( &device_section );
LIST_FOR_EACH_ENTRY( volume, &volumes_list, struct volume, entry )
if (volume->udi && !strcmp( udi, volume->udi ))
{
grab_volume( volume );
goto found;
}
/* udi not found, search for a non-dynamic volume */
if ((volume = find_matching_volume( udi, device, mount_point, type ))) set_volume_udi( volume, udi );
else status = create_volume( udi, type, &volume );
found:
if (!status) status = set_volume_info( volume, NULL, device, mount_point, type, guid );
if (volume) release_volume( volume );
LeaveCriticalSection( &device_section );
return status;
}
/* create a new disk volume */
NTSTATUS remove_volume( const char *udi )
{
NTSTATUS status = STATUS_NO_SUCH_DEVICE;
struct volume *volume;
EnterCriticalSection( &device_section );
LIST_FOR_EACH_ENTRY( volume, &volumes_list, struct volume, entry )
{
if (!volume->udi || strcmp( udi, volume->udi )) continue;
set_volume_udi( volume, NULL );
status = STATUS_SUCCESS;
break;
}
LeaveCriticalSection( &device_section );
return status;
}
/* create a new dos drive */
NTSTATUS add_dos_device( int letter, const char *udi, const char *device,
const char *mount_point, enum device_type type, const GUID *guid,
UNICODE_STRING *devname )
{
char *path, *p;
HKEY hkey;
NTSTATUS status = STATUS_SUCCESS;
struct dos_drive *drive, *next;
struct volume *volume;
int notify = -1;
if (!(path = get_dosdevices_path( &p ))) return STATUS_NO_MEMORY;
EnterCriticalSection( &device_section );
volume = find_matching_volume( udi, device, mount_point, type );
if (letter == -1) /* auto-assign a letter */
{
letter = add_drive( device, type );
if (letter == -1)
{
status = STATUS_OBJECT_NAME_COLLISION;
goto done;
}
LIST_FOR_EACH_ENTRY_SAFE( drive, next, &drives_list, struct dos_drive, entry )
{
if (drive->volume->udi && !strcmp( udi, drive->volume->udi )) goto found;
if (drive->drive == letter) delete_dos_device( drive );
}
}
else /* simply reset the device symlink */
{
LIST_FOR_EACH_ENTRY( drive, &drives_list, struct dos_drive, entry )
if (drive->drive == letter) break;
*p = 'a' + letter;
if (&drive->entry == &drives_list) update_symlink( path, device, NULL );
else
{
update_symlink( path, device, drive->volume->device->unix_device );
delete_dos_device( drive );
}
}
if ((status = create_dos_device( volume, udi, letter, type, &drive ))) goto done;
found:
if (!guid && !volume) guid = get_default_uuid( letter );
if (!volume) volume = grab_volume( drive->volume );
set_drive_info( drive, letter, volume );
p[0] = 'a' + drive->drive;
p[2] = 0;
update_symlink( path, mount_point, volume->device->unix_mount );
set_volume_info( volume, drive, device, mount_point, type, guid );
TRACE( "added device %c: udi %s for %s on %s type %u\n",
'a' + drive->drive, wine_dbgstr_a(udi), wine_dbgstr_a(device),
wine_dbgstr_a(mount_point), type );
/* hack: force the drive type in the registry */
if (!RegCreateKeyW( HKEY_LOCAL_MACHINE, drives_keyW, &hkey ))
{
const WCHAR *type_name = drive_types[type];
WCHAR name[] = {'a',':',0};
name[0] += drive->drive;
if (!type_name[0] && type == DEVICE_HARDDISK) type_name = drive_types[DEVICE_FLOPPY];
if (type_name[0])
RegSetValueExW( hkey, name, 0, REG_SZ, (const BYTE *)type_name,
(strlenW(type_name) + 1) * sizeof(WCHAR) );
else
RegDeleteValueW( hkey, name );
RegCloseKey( hkey );
}
if (udi) notify = drive->drive;
if (devname) *devname = volume->device->name;
done:
if (volume) release_volume( volume );
LeaveCriticalSection( &device_section );
RtlFreeHeap( GetProcessHeap(), 0, path );
if (notify != -1) send_notify( notify, DBT_DEVICEARRIVAL );
return status;
}
/* remove an existing dos drive, by letter or udi */
NTSTATUS remove_dos_device( int letter, const char *udi )
{
NTSTATUS status = STATUS_NO_SUCH_DEVICE;
HKEY hkey;
struct dos_drive *drive;
char *path, *p;
int notify = -1;
EnterCriticalSection( &device_section );
LIST_FOR_EACH_ENTRY( drive, &drives_list, struct dos_drive, entry )
{
if (udi)
{
if (!drive->volume->udi) continue;
if (strcmp( udi, drive->volume->udi )) continue;
set_volume_udi( drive->volume, NULL );
}
else if (drive->drive != letter) continue;
if ((path = get_dosdevices_path( &p )))
{
p[0] = 'a' + drive->drive;
p[2] = 0;
unlink( path );
RtlFreeHeap( GetProcessHeap(), 0, path );
}
/* clear the registry key too */
if (!RegOpenKeyW( HKEY_LOCAL_MACHINE, drives_keyW, &hkey ))
{
WCHAR name[] = {'a',':',0};
name[0] += drive->drive;
RegDeleteValueW( hkey, name );
RegCloseKey( hkey );
}
if (udi && drive->volume->device->unix_mount) notify = drive->drive;
delete_dos_device( drive );
status = STATUS_SUCCESS;
break;
}
LeaveCriticalSection( &device_section );
if (notify != -1) send_notify( notify, DBT_DEVICEREMOVECOMPLETE );
return status;
}
/* query information about an existing dos drive, by letter or udi */
NTSTATUS query_dos_device( int letter, enum device_type *type, char **device, char **mount_point )
{
NTSTATUS status = STATUS_NO_SUCH_DEVICE;
struct dos_drive *drive;
struct disk_device *disk_device;
EnterCriticalSection( &device_section );
LIST_FOR_EACH_ENTRY( drive, &drives_list, struct dos_drive, entry )
{
if (drive->drive != letter) continue;
disk_device = drive->volume->device;
if (type) *type = disk_device->type;
if (device) *device = strdupA( disk_device->unix_device );
if (mount_point) *mount_point = strdupA( disk_device->unix_mount );
status = STATUS_SUCCESS;
break;
}
LeaveCriticalSection( &device_section );
return status;
}
static void query_property(IRP *irp)
{
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
STORAGE_PROPERTY_QUERY *query = irp->AssociatedIrp.SystemBuffer;
if (!irp->AssociatedIrp.SystemBuffer
|| irpsp->Parameters.DeviceIoControl.InputBufferLength < sizeof(STORAGE_PROPERTY_QUERY))
{
irp->IoStatus.u.Status = STATUS_INVALID_PARAMETER;
return;
}
/* Try to persuade application not to check property */
if (query->QueryType == PropertyExistsQuery)
{
irp->IoStatus.u.Status = STATUS_NOT_SUPPORTED;
return;
}
switch (query->PropertyId)
{
case StorageDeviceProperty:
{
STORAGE_DEVICE_DESCRIPTOR *descriptor;
if (!irp->UserBuffer
|| irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(STORAGE_DESCRIPTOR_HEADER))
irp->IoStatus.u.Status = STATUS_INVALID_PARAMETER;
else if (irpsp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(STORAGE_DEVICE_DESCRIPTOR))
{
descriptor = irp->UserBuffer;
descriptor->Version = sizeof(STORAGE_DEVICE_DESCRIPTOR);
descriptor->Size = sizeof(STORAGE_DEVICE_DESCRIPTOR);
irp->IoStatus.Information = sizeof(STORAGE_DESCRIPTOR_HEADER);
irp->IoStatus.u.Status = STATUS_SUCCESS;
}
else
{
FIXME( "Faking StorageDeviceProperty data\n" );
memset( irp->UserBuffer, 0, irpsp->Parameters.DeviceIoControl.OutputBufferLength );
descriptor = irp->UserBuffer;
descriptor->Version = sizeof(STORAGE_DEVICE_DESCRIPTOR);
descriptor->Size = sizeof(STORAGE_DEVICE_DESCRIPTOR);
descriptor->DeviceType = FILE_DEVICE_DISK;
descriptor->DeviceTypeModifier = 0;
descriptor->RemovableMedia = FALSE;
descriptor->CommandQueueing = FALSE;
descriptor->VendorIdOffset = 0;
descriptor->ProductIdOffset = 0;
descriptor->ProductRevisionOffset = 0;
descriptor->SerialNumberOffset = 0;
descriptor->BusType = BusTypeScsi;
descriptor->RawPropertiesLength = 0;
irp->IoStatus.Information = sizeof(STORAGE_DEVICE_DESCRIPTOR);
irp->IoStatus.u.Status = STATUS_SUCCESS;
}
break;
}
default:
FIXME( "Unsupported property %#x\n", query->PropertyId );
irp->IoStatus.u.Status = STATUS_NOT_SUPPORTED;
break;
}
}
/* handler for ioctls on the harddisk device */
static NTSTATUS WINAPI harddisk_ioctl( DEVICE_OBJECT *device, IRP *irp )
{
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
struct disk_device *dev = device->DeviceExtension;
TRACE( "ioctl %x insize %u outsize %u\n",
irpsp->Parameters.DeviceIoControl.IoControlCode,
irpsp->Parameters.DeviceIoControl.InputBufferLength,
irpsp->Parameters.DeviceIoControl.OutputBufferLength );
EnterCriticalSection( &device_section );
switch(irpsp->Parameters.DeviceIoControl.IoControlCode)
{
case IOCTL_DISK_GET_DRIVE_GEOMETRY:
{
DISK_GEOMETRY info;
DWORD len = min( sizeof(info), irpsp->Parameters.DeviceIoControl.OutputBufferLength );
info.Cylinders.QuadPart = 10000;
info.MediaType = (dev->devnum.DeviceType == FILE_DEVICE_DISK) ? FixedMedia : RemovableMedia;
info.TracksPerCylinder = 255;
info.SectorsPerTrack = 63;
info.BytesPerSector = 512;
memcpy( irp->AssociatedIrp.SystemBuffer, &info, len );
irp->IoStatus.Information = len;
irp->IoStatus.u.Status = STATUS_SUCCESS;
break;
}
case IOCTL_DISK_GET_DRIVE_GEOMETRY_EX:
{
DISK_GEOMETRY_EX info;
DWORD len = min( sizeof(info), irpsp->Parameters.DeviceIoControl.OutputBufferLength );
FIXME("The DISK_PARTITION_INFO and DISK_DETECTION_INFO structures will not be filled\n");
info.Geometry.Cylinders.QuadPart = 10000;
info.Geometry.MediaType = (dev->devnum.DeviceType == FILE_DEVICE_DISK) ? FixedMedia : RemovableMedia;
info.Geometry.TracksPerCylinder = 255;
info.Geometry.SectorsPerTrack = 63;
info.Geometry.BytesPerSector = 512;
info.DiskSize.QuadPart = info.Geometry.Cylinders.QuadPart * info.Geometry.TracksPerCylinder *
info.Geometry.SectorsPerTrack * info.Geometry.BytesPerSector;
info.Data[0] = 0;
memcpy( irp->AssociatedIrp.SystemBuffer, &info, len );
irp->IoStatus.Information = len;
irp->IoStatus.u.Status = STATUS_SUCCESS;
break;
}
case IOCTL_STORAGE_GET_DEVICE_NUMBER:
{
DWORD len = min( sizeof(dev->devnum), irpsp->Parameters.DeviceIoControl.OutputBufferLength );
memcpy( irp->AssociatedIrp.SystemBuffer, &dev->devnum, len );
irp->IoStatus.Information = len;
irp->IoStatus.u.Status = STATUS_SUCCESS;
break;
}
case IOCTL_CDROM_READ_TOC:
irp->IoStatus.u.Status = STATUS_INVALID_DEVICE_REQUEST;
break;
case IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS:
{
DWORD len = min( 32, irpsp->Parameters.DeviceIoControl.OutputBufferLength );
FIXME( "returning zero-filled buffer for IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS\n" );
memset( irp->AssociatedIrp.SystemBuffer, 0, len );
irp->IoStatus.Information = len;
irp->IoStatus.u.Status = STATUS_SUCCESS;
break;
}
case IOCTL_STORAGE_QUERY_PROPERTY:
query_property( irp );
break;
default:
{
ULONG code = irpsp->Parameters.DeviceIoControl.IoControlCode;
FIXME("Unsupported ioctl %x (device=%x access=%x func=%x method=%x)\n",
code, code >> 16, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3);
irp->IoStatus.u.Status = STATUS_NOT_SUPPORTED;
break;
}
}
LeaveCriticalSection( &device_section );
IoCompleteRequest( irp, IO_NO_INCREMENT );
return STATUS_SUCCESS;
}
/* driver entry point for the harddisk driver */
NTSTATUS WINAPI harddisk_driver_entry( DRIVER_OBJECT *driver, UNICODE_STRING *path )
{
struct disk_device *device;
harddisk_driver = driver;
driver->MajorFunction[IRP_MJ_DEVICE_CONTROL] = harddisk_ioctl;
/* create a harddisk0 device that isn't assigned to any drive */
create_disk_device( DEVICE_HARDDISK, &device );
create_drive_devices();
return STATUS_SUCCESS;
}
/* create a serial or parallel port */
static BOOL create_port_device( DRIVER_OBJECT *driver, int n, const char *unix_path,
const char *dosdevices_path, HKEY windows_ports_key )
{
static const WCHAR comW[] = {'C','O','M','%','u',0};
static const WCHAR lptW[] = {'L','P','T','%','u',0};
static const WCHAR device_serialW[] = {'\\','D','e','v','i','c','e','\\','S','e','r','i','a','l','%','u',0};
static const WCHAR device_parallelW[] = {'\\','D','e','v','i','c','e','\\','P','a','r','a','l','l','e','l','%','u',0};
static const WCHAR dosdevices_comW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','C','O','M','%','u',0};
static const WCHAR dosdevices_auxW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','A','U','X',0};
static const WCHAR dosdevices_lptW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','L','P','T','%','u',0};
static const WCHAR dosdevices_prnW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','P','R','N',0};
const WCHAR *dos_name_format, *nt_name_format, *reg_value_format, *symlink_format, *default_device;
WCHAR dos_name[7], reg_value[256], nt_buffer[32], symlink_buffer[32];
UNICODE_STRING nt_name, symlink_name, default_name;
DEVICE_OBJECT *dev_obj;
NTSTATUS status;
if (driver == serial_driver)
{
dos_name_format = comW;
nt_name_format = device_serialW;
reg_value_format = comW;
symlink_format = dosdevices_comW;
default_device = dosdevices_auxW;
}
else
{
dos_name_format = lptW;
nt_name_format = device_parallelW;
reg_value_format = dosdevices_lptW;
symlink_format = dosdevices_lptW;
default_device = dosdevices_prnW;
}
sprintfW( dos_name, dos_name_format, n );
/* create DOS device */
unlink( dosdevices_path );
if (symlink( unix_path, dosdevices_path ) != 0)
return FALSE;
/* create NT device */
sprintfW( nt_buffer, nt_name_format, n - 1 );
RtlInitUnicodeString( &nt_name, nt_buffer );
status = IoCreateDevice( driver, 0, &nt_name, 0, 0, FALSE, &dev_obj );
if (status != STATUS_SUCCESS)
{
FIXME( "IoCreateDevice %s got %x\n", debugstr_w(nt_name.Buffer), status );
return FALSE;
}
sprintfW( symlink_buffer, symlink_format, n );
RtlInitUnicodeString( &symlink_name, symlink_buffer );
IoCreateSymbolicLink( &symlink_name, &nt_name );
if (n == 1)
{
RtlInitUnicodeString( &default_name, default_device );
IoCreateSymbolicLink( &default_name, &symlink_name );
}
/* TODO: store information about the Unix device in the NT device */
/* create registry entry */
sprintfW( reg_value, reg_value_format, n );
RegSetValueExW( windows_ports_key, nt_name.Buffer, 0, REG_SZ,
(BYTE *)reg_value, (strlenW( reg_value ) + 1) * sizeof(WCHAR) );
return TRUE;
}
/* find and create serial or parallel ports */
static void create_port_devices( DRIVER_OBJECT *driver )
{
static const char *serial_search_paths[] = {
#ifdef linux
"/dev/ttyS%u",
"/dev/ttyUSB%u",
"/dev/ttyACM%u",
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
"/dev/cuau%u",
#elif defined(__DragonFly__)
"/dev/cuaa%u",
#endif
NULL
};
static const char *parallel_search_paths[] = {
#ifdef linux
"/dev/lp%u",
#endif
NULL
};
static const WCHAR serialcomm_keyW[] = {'H','A','R','D','W','A','R','E','\\',
'D','E','V','I','C','E','M','A','P','\\',
'S','E','R','I','A','L','C','O','M','M',0};
static const WCHAR parallel_ports_keyW[] = {'H','A','R','D','W','A','R','E','\\',
'D','E','V','I','C','E','M','A','P','\\',
'P','A','R','A','L','L','E','L',' ','P','O','R','T','S',0};
static const WCHAR comW[] = {'C','O','M'};
static const WCHAR lptW[] = {'L','P','T'};
const char **search_paths;
const WCHAR *windows_ports_key_name;
char *dosdevices_path, *p;
HKEY wine_ports_key = NULL, windows_ports_key = NULL;
char unix_path[256];
const WCHAR *port_prefix;
WCHAR reg_value[256];
BOOL used[MAX_PORTS];
WCHAR port[7];
DWORD port_len, type, size;
int i, j, n;
if (!(dosdevices_path = get_dosdevices_path( &p )))
return;
if (driver == serial_driver)
{
p[0] = 'c';
p[1] = 'o';
p[2] = 'm';
search_paths = serial_search_paths;
windows_ports_key_name = serialcomm_keyW;
port_prefix = comW;
}
else
{
p[0] = 'l';
p[1] = 'p';
p[2] = 't';
search_paths = parallel_search_paths;
windows_ports_key_name = parallel_ports_keyW;
port_prefix = lptW;
}
p += 3;
RegCreateKeyExW( HKEY_LOCAL_MACHINE, ports_keyW, 0, NULL, 0,
KEY_QUERY_VALUE, NULL, &wine_ports_key, NULL );
RegCreateKeyExW( HKEY_LOCAL_MACHINE, windows_ports_key_name, 0, NULL, REG_OPTION_VOLATILE,
KEY_ALL_ACCESS, NULL, &windows_ports_key, NULL );
/* add user-defined serial ports */
memset(used, 0, sizeof(used));
for (i = 0; ; i++)
{
port_len = ARRAY_SIZE(port);
size = sizeof(reg_value);
if (RegEnumValueW( wine_ports_key, i, port, &port_len, NULL,
&type, (BYTE*)reg_value, &size ) != ERROR_SUCCESS)
break;
if (type != REG_SZ || strncmpiW( port, port_prefix, 3 ))
continue;
n = atolW( port + 3 );
if (n < 1 || n >= MAX_PORTS)
continue;
if (!WideCharToMultiByte( CP_UNIXCP, WC_ERR_INVALID_CHARS, reg_value, size/sizeof(WCHAR),
unix_path, sizeof(unix_path), NULL, NULL))
continue;
used[n - 1] = TRUE;
sprintf( p, "%u", n );
create_port_device( driver, n, unix_path, dosdevices_path, windows_ports_key );
}
/* look for ports in the usual places */
n = 1;
while (n <= MAX_PORTS && used[n - 1]) n++;
for (i = 0; search_paths[i]; i++)
{
for (j = 0; n <= MAX_PORTS; j++)
{
sprintf( unix_path, search_paths[i], j );
if (access( unix_path, F_OK ) != 0)
break;
sprintf( p, "%u", n );
create_port_device( driver, n, unix_path, dosdevices_path, windows_ports_key );
n++;
while (n <= MAX_PORTS && used[n - 1]) n++;
}
}
RegCloseKey( wine_ports_key );
RegCloseKey( windows_ports_key );
HeapFree( GetProcessHeap(), 0, dosdevices_path );
}
/* driver entry point for the serial port driver */
NTSTATUS WINAPI serial_driver_entry( DRIVER_OBJECT *driver, UNICODE_STRING *path )
{
serial_driver = driver;
/* TODO: fill in driver->MajorFunction */
create_port_devices( driver );
return STATUS_SUCCESS;
}
/* driver entry point for the parallel port driver */
NTSTATUS WINAPI parallel_driver_entry( DRIVER_OBJECT *driver, UNICODE_STRING *path )
{
parallel_driver = driver;
/* TODO: fill in driver->MajorFunction */
create_port_devices( driver );
return STATUS_SUCCESS;
}
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