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ntdll: Added support for physically ejecting devices on Mac OS.

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This commit is contained in:
Alexandre Julliard 2006-12-21 14:14:20 +01:00
parent 9fed1205ca
commit 9ff161860c
1 changed files with 98 additions and 1 deletions
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99
dlls/ntdll/cdrom.c
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@ -77,7 +77,9 @@
#ifdef HAVE_IOKIT_IOKITLIB_H
# ifndef SENSEBUFLEN
# include <sys/disk.h>
# include <IOKit/IOKitLib.h>
# include <IOKit/storage/IOMedia.h>
# include <IOKit/scsi/SCSICmds_REQUEST_SENSE_Defs.h>
# define SENSEBUFLEN kSenseDefaultSize
# endif
@ -302,6 +304,82 @@ static int CDROM_MediaChanged(int dev)
}
#endif
/******************************************************************
* open_parent_device
*
* On Mac OS, open the device for the whole disk from a fd that points to a partition.
* This is ugly and inefficient, but we have no choice since the partition fd doesn't
* support the eject ioctl.
*/
#ifdef __APPLE__
static int open_parent_device( int fd )
{
struct stat st;
int i, parent_fd = -1;
io_service_t service;
CFMutableDictionaryRef dict;
CFTypeRef val;
if (fstat( fd, &st ) == -1) return -1;
if (!S_ISCHR( st.st_mode )) return -1;
/* create a dictionary with the right major/minor numbers */
if (!(dict = IOServiceMatching( kIOMediaClass ))) return -1;
i = major( st.st_rdev );
val = CFNumberCreate( NULL, kCFNumberIntType, &i );
CFDictionaryAddValue( dict, CFSTR( "BSD Major" ), val );
CFRelease( val );
i = minor( st.st_rdev );
val = CFNumberCreate( NULL, kCFNumberIntType, &i );
CFDictionaryAddValue( dict, CFSTR( "BSD Minor" ), val );
CFRelease( val );
CFDictionaryAddValue( dict, CFSTR("Removable"), kCFBooleanTrue );
service = IOServiceGetMatchingService( kIOMasterPortDefault, dict );
/* now look for the parent that has the "Whole" attribute set to TRUE */
while (service)
{
io_service_t parent = 0;
CFBooleanRef whole;
CFStringRef str;
int ok;
if (!IOObjectConformsTo( service, kIOMediaClass ))
goto next;
if (!(whole = IORegistryEntryCreateCFProperty( service, CFSTR("Whole"), NULL, 0 )))
goto next;
ok = (whole == kCFBooleanTrue);
CFRelease( whole );
if (!ok) goto next;
if ((str = IORegistryEntryCreateCFProperty( service, CFSTR("BSD Name"), NULL, 0 )))
{
char name[100];
strcpy( name, "/dev/r" );
CFStringGetCString( str, name + 6, sizeof(name) - 6, kCFStringEncodingUTF8 );
CFRelease( str );
parent_fd = open( name, O_RDONLY );
}
IOObjectRelease( service );
break;
next:
IORegistryEntryGetParentEntry( service, kIOServicePlane, &parent );
IOObjectRelease( service );
service = parent;
}
return parent_fd;
}
#endif
/******************************************************************
* CDROM_SyncCache [internal]
*
@ -628,6 +706,9 @@ static NTSTATUS CDROM_SetTray(int fd, BOOL doEject)
return CDROM_GetStatusCode((ioctl(fd, CDIOCALLOW, NULL)) ||
(ioctl(fd, doEject ? CDIOCEJECT : CDIOCCLOSE, NULL)) ||
(ioctl(fd, CDIOCPREVENT, NULL)));
#elif defined(__APPLE__)
if (doEject) return CDROM_GetStatusCode( ioctl( fd, DKIOCEJECT, NULL ) );
else return STATUS_NOT_SUPPORTED;
#else
return STATUS_NOT_SUPPORTED;
#endif
@ -2059,7 +2140,23 @@ NTSTATUS CDROM_DeviceIoControl(HANDLE hDevice,
CDROM_ClearCacheEntry(dev);
if (lpInBuffer != NULL || nInBufferSize != 0 || lpOutBuffer != NULL || nOutBufferSize != 0)
status = STATUS_INVALID_PARAMETER;
else status = CDROM_SetTray(fd, TRUE);
else
{
#ifdef __APPLE__
int parent_fd = open_parent_device( fd );
if (parent_fd != -1)
{
/* This is ugly as hell, but Mac OS is unable to eject from the device fd,
* it wants an fd for the whole device, and it also requires the device fd
* to be closed first, so we have to close the handle that the caller gave us */
NtClose( hDevice );
if (needs_close) close( fd );
fd = parent_fd;
needs_close = 1;
}
#endif
status = CDROM_SetTray(fd, TRUE);
}
break;
case IOCTL_CDROM_MEDIA_REMOVAL: