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mountmgr: Store the device name in the mount point structure.

This commit is contained in:
Alexandre Julliard 2008-10-17 20:01:23 +02:00
parent 1680ba67ef
commit a304358e7b
1 changed files with 23 additions and 23 deletions
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46
dlls/mountmgr.sys/mountmgr.c
View File

@ -49,7 +49,6 @@ WINE_DEFAULT_DEBUG_CHANNEL(mountmgr);
/* extra info for disk devices, stored in DeviceExtension */
struct disk_device_info
{
UNICODE_STRING name; /* device name */
STORAGE_DEVICE_NUMBER devnum; /* device number info */
};
@ -57,6 +56,7 @@ struct mount_point
{
struct list entry; /* entry in mount points list */
DEVICE_OBJECT *device; /* disk device */
UNICODE_STRING name; /* device name */
UNICODE_STRING link; /* DOS device symlink */
void *id; /* device unique id */
unsigned int id_len;
@ -65,11 +65,6 @@ struct mount_point
static struct list mount_points_list = LIST_INIT(mount_points_list);
static HKEY mount_key;
static inline UNICODE_STRING *get_device_name( DEVICE_OBJECT *dev )
{
return &((struct disk_device_info *)dev->DeviceExtension)->name;
}
/* read a Unix symlink; returned buffer must be freed by caller */
static char *read_symlink( const char *path )
{
@ -99,7 +94,8 @@ static char *read_symlink( const char *path )
}
}
static NTSTATUS create_disk_device( DRIVER_OBJECT *driver, DWORD type, DEVICE_OBJECT **dev_obj )
static NTSTATUS create_disk_device( DRIVER_OBJECT *driver, DWORD type, DEVICE_OBJECT **dev_obj,
UNICODE_STRING *device_name )
{
static const WCHAR harddiskW[] = {'\\','D','e','v','i','c','e',
'\\','H','a','r','d','d','i','s','k','V','o','l','u','m','e','%','u',0};
@ -139,7 +135,7 @@ static NTSTATUS create_disk_device( DRIVER_OBJECT *driver, DWORD type, DEVICE_OB
if (!status)
{
info = (*dev_obj)->DeviceExtension;
info->name = name;
*device_name = name;
switch(type)
{
case DRIVE_REMOVABLE:
@ -186,13 +182,19 @@ static struct mount_point *add_mount_point( DEVICE_OBJECT *device, UNICODE_STRIN
{
struct mount_point *mount;
WCHAR *str;
UINT len = (strlenW(link) + 1) * sizeof(WCHAR);
UINT len = (strlenW(link) + 1) * sizeof(WCHAR) + device_name->Length + sizeof(WCHAR);
if (!(mount = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*mount) + len ))) return NULL;
str = (WCHAR *)(mount + 1);
strcpyW( str, link );
RtlInitUnicodeString( &mount->link, str );
str += strlenW(str) + 1;
memcpy( str, device_name->Buffer, device_name->Length );
str[device_name->Length / sizeof(WCHAR)] = 0;
mount->name.Buffer = str;
mount->name.Length = device_name->Length;
mount->name.MaximumLength = device_name->Length + sizeof(WCHAR);
mount->device = device;
mount->id = NULL;
list_add_tail( &mount_points_list, &mount->entry );
@ -201,7 +203,7 @@ static struct mount_point *add_mount_point( DEVICE_OBJECT *device, UNICODE_STRIN
set_mount_point_id( mount, id, id_len );
TRACE( "created %s id %s for %s\n", debugstr_w(mount->link.Buffer),
debugstr_a(mount->id), debugstr_w(device_name->Buffer) );
debugstr_a(mount->id), debugstr_w(mount->name.Buffer) );
return mount;
}
@ -248,9 +250,8 @@ static BOOL matching_mount_point( const struct mount_point *mount, const MOUNTMG
if (spec->DeviceNameOffset)
{
const WCHAR *name = (const WCHAR *)((const char *)spec + spec->DeviceNameOffset);
const UNICODE_STRING *dev_name = get_device_name( mount->device );
if (spec->DeviceNameLength != dev_name->Length) return FALSE;
if (memicmpW( name, dev_name->Buffer, dev_name->Length/sizeof(WCHAR)))
if (spec->DeviceNameLength != mount->name.Length) return FALSE;
if (memicmpW( name, mount->name.Buffer, mount->name.Length/sizeof(WCHAR)))
return FALSE;
}
if (spec->UniqueIdOffset)
@ -269,7 +270,6 @@ static NTSTATUS query_mount_points( const void *in_buff, SIZE_T insize,
UINT count, pos, size;
const MOUNTMGR_MOUNT_POINT *input = in_buff;
MOUNTMGR_MOUNT_POINTS *info = out_buff;
UNICODE_STRING *dev_name;
struct mount_point *mount;
/* sanity checks */
@ -285,7 +285,7 @@ static NTSTATUS query_mount_points( const void *in_buff, SIZE_T insize,
LIST_FOR_EACH_ENTRY( mount, &mount_points_list, struct mount_point, entry )
{
if (!matching_mount_point( mount, input )) continue;
size += get_device_name(mount->device)->Length;
size += mount->name.Length;
size += mount->link.Length;
size += mount->id_len;
size = (size + sizeof(WCHAR) - 1) & ~(sizeof(WCHAR) - 1);
@ -307,11 +307,10 @@ static NTSTATUS query_mount_points( const void *in_buff, SIZE_T insize,
{
if (!matching_mount_point( mount, input )) continue;
dev_name = get_device_name( mount->device );
info->MountPoints[count].DeviceNameOffset = pos;
info->MountPoints[count].DeviceNameLength = dev_name->Length;
memcpy( (char *)out_buff + pos, dev_name->Buffer, dev_name->Length );
pos += dev_name->Length;
info->MountPoints[count].DeviceNameLength = mount->name.Length;
memcpy( (char *)out_buff + pos, mount->name.Buffer, mount->name.Length );
pos += mount->name.Length;
info->MountPoints[count].SymbolicLinkNameOffset = pos;
info->MountPoints[count].SymbolicLinkNameLength = mount->link.Length;
@ -414,6 +413,7 @@ static void create_drive_mount_points( DRIVER_OBJECT *driver )
char *buffer, *p, *link;
unsigned int i;
DEVICE_OBJECT *device;
UNICODE_STRING device_name;
if ((buffer = RtlAllocateHeap( GetProcessHeap(), 0,
strlen(config_dir) + sizeof("/dosdevices/a:") )))
@ -426,10 +426,11 @@ static void create_drive_mount_points( DRIVER_OBJECT *driver )
{
*p = 'a' + i;
if (!(link = read_symlink( buffer ))) continue;
if (!create_disk_device( driver, DRIVE_FIXED, &device ))
if (!create_disk_device( driver, DRIVE_FIXED, &device, &device_name ))
{
add_dosdev_mount_point( device, get_device_name(device), i, link, strlen(link) + 1 );
add_volume_mount_point( device, get_device_name(device), i, link, strlen(link) + 1 );
add_dosdev_mount_point( device, &device_name, i, link, strlen(link) + 1 );
add_volume_mount_point( device, &device_name, i, link, strlen(link) + 1 );
RtlFreeUnicodeString( &device_name );
}
RtlFreeHeap( GetProcessHeap(), 0, link );
}
@ -466,7 +467,6 @@ static NTSTATUS WINAPI harddisk_driver_entry( DRIVER_OBJECT *driver, UNICODE_STR
return status;
}
info = device->DeviceExtension;
info->name = nameW;
info->devnum.DeviceType = FILE_DEVICE_DISK;
info->devnum.DeviceNumber = 0;
info->devnum.PartitionNumber = 0;