| /* |
| * 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 <sys/time.h> |
| |
| #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 |
| |
| 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 */ |
| {'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}; |
| |
| 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 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 **drive ) |
| { |
| const char *config_dir = wine_get_config_dir(); |
| size_t len = strlen(config_dir) + sizeof("/dosdevices/a::"); |
| char *path = HeapAlloc( GetProcessHeap(), 0, len ); |
| if (path) |
| { |
| strcpy( path, config_dir ); |
| strcat( path, "/dosdevices/a::" ); |
| *drive = path + len - 4; |
| } |
| 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 ) |
| { |
| DWORD_PTR result; |
| 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; |
| result = 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 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; |
| 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; |
| 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: |
| format = cdromW; |
| 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; |
| |
| 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_UNKNOWN: |
| case DEVICE_HARDDISK: |
| case DEVICE_NETWORK: /* FIXME */ |
| { |
| UNICODE_STRING symlink; |
| |
| symlink.MaximumLength = sizeof(physdriveW) + 10 * sizeof(WCHAR); |
| if ((symlink.Buffer = RtlAllocateHeap( GetProcessHeap(), 0, symlink.MaximumLength))) |
| { |
| sprintfW( symlink.Buffer, physdriveW, i ); |
| symlink.Length = strlenW(symlink.Buffer) * sizeof(WCHAR); |
| if (!IoCreateSymbolicLink( &symlink, &name )) device->symlink = symlink; |
| } |
| 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 ) |
| { |
| /* 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 && strcmp( device, disk_device->unix_device )) continue; |
| if (mount_point && disk_device->unix_mount && strcmp( mount_point, disk_device->unix_mount )) 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 int 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: |
| 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 < sizeof(drive_types)/sizeof(drive_types[0]); 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 ); |
| } |
| |
| /* 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 )) 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 ) |
| { |
| 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[3] = {'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; |
| |
| 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[3] = {'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; |
| } |
| |
| /* handler for ioctls on the harddisk device */ |
| static NTSTATUS WINAPI harddisk_ioctl( DEVICE_OBJECT *device, IRP *irp ) |
| { |
| IO_STACK_LOCATION *irpsp = irp->Tail.Overlay.s.u.CurrentStackLocation; |
| 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->MdlAddress->StartVa, &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->MdlAddress->StartVa, &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; |
| default: |
| FIXME( "unsupported ioctl %x\n", irpsp->Parameters.DeviceIoControl.IoControlCode ); |
| irp->IoStatus.u.Status = STATUS_NOT_SUPPORTED; |
| break; |
| } |
| |
| LeaveCriticalSection( &device_section ); |
| return irp->IoStatus.u.Status; |
| } |
| |
| /* 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; |
| } |
