#include <IOKit/IOBSD.h>
#include <IOKit/IOLib.h>
#include <IOKit/IOService.h>
#include <IOKit/IOCatalogue.h>
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/IOKitKeys.h>
#include <IOKit/IOPlatformExpert.h>
extern "C" {
#include <pexpert/pexpert.h>
#include <kern/clock.h>
#include <uuid/uuid.h>
#if DEBUG
#define ROOTDEVICETIMEOUT 120
#else
#define ROOTDEVICETIMEOUT 60
#endif
extern dev_t mdevadd(int devid, uint64_t base, unsigned int size, int phys);
extern dev_t mdevlookup(int devid);
extern void mdevremoveall(void);
extern void di_root_ramfile(IORegistryEntry * entry);
kern_return_t
IOKitBSDInit( void )
{
IOService::publishResource("IOBSD");
return( kIOReturnSuccess );
}
void
IOServicePublishResource( const char * property, boolean_t value )
{
if ( value)
IOService::publishResource( property, kOSBooleanTrue );
else
IOService::getResourceService()->removeProperty( property );
}
boolean_t
IOServiceWaitForMatchingResource( const char * property, uint64_t timeout )
{
OSDictionary * dict = 0;
IOService * match = 0;
boolean_t found = false;
do {
dict = IOService::resourceMatching( property );
if( !dict)
continue;
match = IOService::waitForMatchingService( dict, timeout );
if ( match)
found = true;
} while( false );
if( dict)
dict->release();
if( match)
match->release();
return( found );
}
boolean_t
IOCatalogueMatchingDriversPresent( const char * property )
{
OSDictionary * dict = 0;
OSOrderedSet * set = 0;
SInt32 generationCount = 0;
boolean_t found = false;
do {
dict = OSDictionary::withCapacity(1);
if( !dict)
continue;
dict->setObject( property, kOSBooleanTrue );
set = gIOCatalogue->findDrivers( dict, &generationCount );
if ( set && (set->getCount() > 0))
found = true;
} while( false );
if( dict)
dict->release();
if( set)
set->release();
return( found );
}
OSDictionary * IOBSDNameMatching( const char * name )
{
OSDictionary * dict;
const OSSymbol * str = 0;
do {
dict = IOService::serviceMatching( gIOServiceKey );
if( !dict)
continue;
str = OSSymbol::withCString( name );
if( !str)
continue;
dict->setObject( kIOBSDNameKey, (OSObject *) str );
str->release();
return( dict );
} while( false );
if( dict)
dict->release();
if( str)
str->release();
return( 0 );
}
OSDictionary * IOUUIDMatching( void )
{
return IOService::resourceMatching( "boot-uuid-media" );
}
OSDictionary * IOCDMatching( void )
{
OSDictionary * dict;
const OSSymbol * str;
dict = IOService::serviceMatching( "IOMedia" );
if( dict == 0 ) {
IOLog("Unable to find IOMedia\n");
return 0;
}
str = OSSymbol::withCString( "CD_ROM_Mode_1" );
if( str == 0 ) {
dict->release();
return 0;
}
dict->setObject( "Content Hint", (OSObject *)str );
str->release();
return( dict );
}
OSDictionary * IONetworkMatching( const char * path,
char * buf, int maxLen )
{
OSDictionary * matching = 0;
OSDictionary * dict;
OSString * str;
char * comp;
const char * skip;
int len;
do {
len = strlen( kIODeviceTreePlane ":" );
maxLen -= len;
if( maxLen <= 0)
continue;
strlcpy( buf, kIODeviceTreePlane ":", len + 1 );
comp = buf + len;
skip = strchr( path, ':');
if( !skip)
continue;
len = skip - path;
maxLen -= len;
if( maxLen <= 0)
continue;
strlcpy( comp, path, len + 1 );
matching = IOService::serviceMatching( "IONetworkInterface" );
if( !matching)
continue;
dict = IOService::addLocation( matching );
if( !dict)
continue;
str = OSString::withCString( buf );
if( !str)
continue;
dict->setObject( kIOPathMatchKey, str );
str->release();
return( matching );
} while( false );
if( matching)
matching->release();
return( 0 );
}
OSDictionary * IONetworkNamePrefixMatching( const char * prefix )
{
OSDictionary * matching;
OSDictionary * propDict = 0;
const OSSymbol * str = 0;
char networkType[128];
do {
matching = IOService::serviceMatching( "IONetworkInterface" );
if ( matching == 0 )
continue;
propDict = OSDictionary::withCapacity(1);
if ( propDict == 0 )
continue;
str = OSSymbol::withCString( prefix );
if ( str == 0 )
continue;
propDict->setObject( "IOInterfaceNamePrefix", (OSObject *) str );
str->release();
str = 0;
if(PE_parse_boot_argn( "network-type", networkType, 128 ))
{
str = OSSymbol::withCString( networkType );
if(str)
{
propDict->setObject( "IONetworkRootType", str);
str->release();
str = 0;
}
}
if ( matching->setObject( gIOPropertyMatchKey,
(OSObject *) propDict ) != true )
continue;
propDict->release();
propDict = 0;
return( matching );
} while ( false );
if ( matching ) matching->release();
if ( propDict ) propDict->release();
if ( str ) str->release();
return( 0 );
}
static bool IORegisterNetworkInterface( IOService * netif )
{
IOService * stack;
OSNumber * zero = 0;
OSString * path = 0;
OSDictionary * dict = 0;
char * pathBuf = 0;
int len;
enum { kMaxPathLen = 512 };
do {
stack = IOService::waitForService(
IOService::serviceMatching("IONetworkStack") );
if ( stack == 0 ) break;
dict = OSDictionary::withCapacity(3);
if ( dict == 0 ) break;
zero = OSNumber::withNumber((UInt64) 0, 32);
if ( zero == 0 ) break;
pathBuf = (char *) IOMalloc( kMaxPathLen );
if ( pathBuf == 0 ) break;
len = kMaxPathLen;
if ( netif->getPath( pathBuf, &len, gIOServicePlane )
== false ) break;
path = OSString::withCStringNoCopy( pathBuf );
if ( path == 0 ) break;
dict->setObject( "IOInterfaceUnit", zero );
dict->setObject( kIOPathMatchKey, path );
stack->setProperties( dict );
}
while ( false );
if ( zero ) zero->release();
if ( path ) path->release();
if ( dict ) dict->release();
if ( pathBuf ) IOFree(pathBuf, kMaxPathLen);
return ( netif->getProperty( kIOBSDNameKey ) != 0 );
}
OSDictionary * IODiskMatching( const char * path, char * buf, int maxLen )
{
const char * look;
const char * alias;
char * comp;
long unit = -1;
long partition = -1;
long lun = -1;
char c;
int len;
do {
alias = IORegistryEntry::dealiasPath( &path, gIODTPlane );
look = path + strlen( path);
c = ':';
while( look != path) {
if( *(--look) == c) {
if( c == ':') {
partition = strtol( look + 1, 0, 0 );
c = '@';
} else if( c == '@') {
unit = strtol( look + 1, &comp, 16 );
if( *comp == ',') {
lun = strtol( comp + 1, 0, 16 );
}
c = '/';
} else if( c == '/') {
c = 0;
break;
}
}
if( alias && (look == path)) {
path = alias;
look = path + strlen( path);
alias = 0;
}
}
if( c || unit == -1 || partition == -1)
continue;
len = strlen( "{" kIOPathMatchKey "='" kIODeviceTreePlane ":" );
maxLen -= len;
if( maxLen <= 0)
continue;
snprintf( buf, len + 1, "{" kIOPathMatchKey "='" kIODeviceTreePlane ":" );
comp = buf + len;
if( alias) {
len = strlen( alias );
maxLen -= len;
if( maxLen <= 0)
continue;
strlcpy( comp, alias, len + 1 );
comp += len;
}
if ( (look - path)) {
len = (look - path);
maxLen -= len;
if( maxLen <= 0)
continue;
strlcpy( comp, path, len + 1 );
comp += len;
}
if ( lun != -1 )
{
len = strlen( "/@hhhhhhhh,hhhhhhhh:dddddddddd';}" );
maxLen -= len;
if( maxLen <= 0)
continue;
snprintf( comp, len + 1, "/@%lx,%lx:%ld';}", unit, lun, partition );
}
else
{
len = strlen( "/@hhhhhhhh:dddddddddd';}" );
maxLen -= len;
if( maxLen <= 0)
continue;
snprintf( comp, len + 1, "/@%lx:%ld';}", unit, partition );
}
return( OSDynamicCast(OSDictionary, OSUnserialize( buf, 0 )) );
} while( false );
return( 0 );
}
OSDictionary * IOOFPathMatching( const char * path, char * buf, int maxLen )
{
OSDictionary * matching;
OSString * str;
char * comp;
int len;
matching = IODiskMatching( path, buf, maxLen );
if( matching)
return( matching );
do {
len = strlen( kIODeviceTreePlane ":" );
maxLen -= len;
if( maxLen <= 0)
continue;
strlcpy( buf, kIODeviceTreePlane ":", len + 1 );
comp = buf + len;
len = strlen( path );
maxLen -= len;
if( maxLen <= 0)
continue;
strlcpy( comp, path, len + 1 );
matching = OSDictionary::withCapacity( 1 );
if( !matching)
continue;
str = OSString::withCString( buf );
if( !str)
continue;
matching->setObject( kIOPathMatchKey, str );
str->release();
return( matching );
} while( false );
if( matching)
matching->release();
return( 0 );
}
IOService * IOFindMatchingChild( IOService * service )
{
IOService * child = 0;
OSIterator * iter = service->getClientIterator();
if ( iter ) {
while( ( child = (IOService *) iter->getNextObject() ) ) {
OSDictionary * dict = OSDictionary::withCapacity( 1 );
if( dict == 0 ) {
iter->release();
return 0;
}
const OSSymbol * str = OSSymbol::withCString( "Apple_HFS" );
if( str == 0 ) {
dict->release();
iter->release();
return 0;
}
dict->setObject( "Content", (OSObject *)str );
str->release();
if ( child->compareProperty( dict, "Content" ) ) {
dict->release();
break;
}
dict->release();
IOService * subchild = IOFindMatchingChild( child );
if ( subchild ) {
child = subchild;
break;
}
}
iter->release();
}
return child;
}
static int didRam = 0;
kern_return_t IOFindBSDRoot( char * rootName, unsigned int rootNameSize,
dev_t * root, u_int32_t * oflags )
{
mach_timespec_t t;
IOService * service;
IORegistryEntry * regEntry;
OSDictionary * matching = 0;
OSString * iostr;
OSNumber * off;
OSData * data = 0;
UInt32 *ramdParms = 0;
UInt32 flags = 0;
int mnr, mjr;
bool findHFSChild = false;
const char * mediaProperty = 0;
char * rdBootVar;
enum { kMaxPathBuf = 512, kMaxBootVar = 128 };
char * str;
const char * look = 0;
int len;
bool forceNet = false;
bool debugInfoPrintedOnce = false;
const char * uuidStr = NULL;
static int mountAttempts = 0;
int xchar, dchar;
if( mountAttempts++)
IOSleep( 5 * 1000 );
str = (char *) IOMalloc( kMaxPathBuf + kMaxBootVar );
if( !str)
return( kIOReturnNoMemory );
rdBootVar = str + kMaxPathBuf;
if (!PE_parse_boot_argn("rd", rdBootVar, kMaxBootVar )
&& !PE_parse_boot_argn("rootdev", rdBootVar, kMaxBootVar ))
rdBootVar[0] = 0;
do {
if( (regEntry = IORegistryEntry::fromPath( "/chosen", gIODTPlane ))) {
di_root_ramfile(regEntry);
data = OSDynamicCast(OSData, regEntry->getProperty( "root-matching" ));
if (data) {
matching = OSDynamicCast(OSDictionary, OSUnserializeXML((char *)data->getBytesNoCopy()));
if (matching) {
continue;
}
}
data = (OSData *) regEntry->getProperty( "boot-uuid" );
if( data) {
uuidStr = (const char*)data->getBytesNoCopy();
OSString *uuidString = OSString::withCString( uuidStr );
if( uuidString) {
IOLog("rooting via boot-uuid from /chosen: %s\n", uuidStr);
IOService::publishResource( "boot-uuid", uuidString );
uuidString->release();
matching = IOUUIDMatching();
mediaProperty = "boot-uuid-media";
regEntry->release();
continue;
} else {
uuidStr = NULL;
}
}
data = (OSData *) regEntry->getProperty( "rootpath" );
regEntry->release();
if( data) continue;
}
if( (regEntry = IORegistryEntry::fromPath( "/options", gIODTPlane ))) {
data = (OSData *) regEntry->getProperty( "boot-file" );
regEntry->release();
if( data) continue;
}
} while( false );
if( data && !uuidStr)
look = (const char *) data->getBytesNoCopy();
if( rdBootVar[0] == '*') {
look = rdBootVar + 1;
forceNet = false;
} else {
if( (regEntry = IORegistryEntry::fromPath( "/", gIODTPlane ))) {
forceNet = (0 != regEntry->getProperty( "net-boot" ));
regEntry->release();
}
}
if(!didRam) {
didRam = 1;
if((regEntry = IORegistryEntry::fromPath( "/chosen/memory-map", gIODTPlane ))) {
data = (OSData *)regEntry->getProperty("RAMDisk");
if(data) {
ramdParms = (UInt32 *)data->getBytesNoCopy();
(void)mdevadd(-1, ml_static_ptovirt(ramdParms[0]) >> 12, ramdParms[1] >> 12, 0);
}
regEntry->release();
}
}
if((rdBootVar[0] == 'm') && (rdBootVar[1] == 'd') && (rdBootVar[3] == 0)) {
dchar = xchar = rdBootVar[2];
if((xchar >= '0') && (xchar <= '9')) xchar = xchar - '0';
else {
xchar = xchar & ~' ';
if((xchar >= 'A') && (xchar <= 'F')) {
xchar = (xchar & 0xF) + 9;
dchar = dchar | ' ';
}
else xchar = -1;
}
if(xchar >= 0) {
*root = mdevlookup(xchar);
if(*root >= 0) {
rootName[0] = 'm';
rootName[1] = 'd';
rootName[2] = dchar;
rootName[3] = 0;
IOLog("BSD root: %s, major %d, minor %d\n", rootName, major(*root), minor(*root));
*oflags = 0;
goto iofrootx;
}
panic("IOFindBSDRoot: specified root memory device, %s, has not been configured\n", rdBootVar);
}
}
if( look) {
IOLog("From path: \"%s\", ", look);
if (!matching) {
if( forceNet || (0 == strncmp( look, "enet", strlen( "enet" ))) ) {
matching = IONetworkMatching( look, str, kMaxPathBuf );
} else {
matching = IODiskMatching( look, str, kMaxPathBuf );
}
}
}
if( (!matching) && rdBootVar[0] ) {
look = rdBootVar;
if( look[0] == '*')
look++;
if ( strncmp( look, "en", strlen( "en" )) == 0 ) {
matching = IONetworkNamePrefixMatching( "en" );
} else if ( strncmp( look, "cdrom", strlen( "cdrom" )) == 0 ) {
matching = IOCDMatching();
findHFSChild = true;
} else if ( strncmp( look, "uuid", strlen( "uuid" )) == 0 ) {
char *uuid;
OSString *uuidString;
uuid = (char *)IOMalloc( kMaxBootVar );
if ( uuid ) {
if (!PE_parse_boot_argn( "boot-uuid", uuid, kMaxBootVar )) {
panic( "rd=uuid but no boot-uuid=<value> specified" );
}
uuidString = OSString::withCString( uuid );
if ( uuidString ) {
IOService::publishResource( "boot-uuid", uuidString );
uuidString->release();
IOLog( "\nWaiting for boot volume with UUID %s\n", uuid );
matching = IOUUIDMatching();
mediaProperty = "boot-uuid-media";
}
IOFree( uuid, kMaxBootVar );
}
} else {
matching = IOBSDNameMatching( look );
}
}
if( !matching) {
OSString * astring;
matching = IOService::serviceMatching( "IOMedia" );
astring = OSString::withCStringNoCopy("Apple_HFS");
if ( astring ) {
matching->setObject("Content", astring);
astring->release();
}
}
if( true && matching) {
OSSerialize * s = OSSerialize::withCapacity( 5 );
if( matching->serialize( s )) {
IOLog( "Waiting on %s\n", s->text() );
s->release();
}
}
do {
t.tv_sec = ROOTDEVICETIMEOUT;
t.tv_nsec = 0;
matching->retain();
service = IOService::waitForService( matching, &t );
if( (!service) || (mountAttempts == 10)) {
PE_display_icon( 0, "noroot");
IOLog( "Still waiting for root device\n" );
if( !debugInfoPrintedOnce) {
debugInfoPrintedOnce = true;
if( gIOKitDebug & kIOLogDTree) {
IOLog("\nDT plane:\n");
IOPrintPlane( gIODTPlane );
}
if( gIOKitDebug & kIOLogServiceTree) {
IOLog("\nService plane:\n");
IOPrintPlane( gIOServicePlane );
}
if( gIOKitDebug & kIOLogMemory)
IOPrintMemory();
}
}
} while( !service);
matching->release();
if ( service && findHFSChild ) {
bool waiting = true;
uint64_t timeoutNS;
while ( waiting ) {
timeoutNS = ROOTDEVICETIMEOUT;
timeoutNS *= kSecondScale;
if ( (service->waitQuiet(timeoutNS) ) == kIOReturnSuccess) {
waiting = false;
} else {
IOLog( "Waiting for child registration\n" );
}
}
IOService * subservice = IOFindMatchingChild( service );
if ( subservice ) service = subservice;
} else if ( service && mediaProperty ) {
service = (IOService *)service->getProperty(mediaProperty);
}
mjr = 0;
mnr = 0;
if ( service
&& service->metaCast( "IONetworkInterface" )
&& !IORegisterNetworkInterface( service ) )
{
service = 0;
}
if( service) {
len = kMaxPathBuf;
service->getPath( str, &len, gIOServicePlane );
IOLog( "Got boot device = %s\n", str );
iostr = (OSString *) service->getProperty( kIOBSDNameKey );
if( iostr)
strlcpy( rootName, iostr->getCStringNoCopy(), rootNameSize );
off = (OSNumber *) service->getProperty( kIOBSDMajorKey );
if( off)
mjr = off->unsigned32BitValue();
off = (OSNumber *) service->getProperty( kIOBSDMinorKey );
if( off)
mnr = off->unsigned32BitValue();
if( service->metaCast( "IONetworkInterface" ))
flags |= 1;
} else {
IOLog( "Wait for root failed\n" );
strlcpy( rootName, "en0", rootNameSize );
flags |= 1;
}
IOLog( "BSD root: %s", rootName );
if( mjr)
IOLog(", major %d, minor %d\n", mjr, mnr );
else
IOLog("\n");
*root = makedev( mjr, mnr );
*oflags = flags;
IOFree( str, kMaxPathBuf + kMaxBootVar );
iofrootx:
if( (gIOKitDebug & (kIOLogDTree | kIOLogServiceTree | kIOLogMemory)) && !debugInfoPrintedOnce) {
IOService::getPlatform()->waitQuiet();
if( gIOKitDebug & kIOLogDTree) {
IOLog("\nDT plane:\n");
IOPrintPlane( gIODTPlane );
}
if( gIOKitDebug & kIOLogServiceTree) {
IOLog("\nService plane:\n");
IOPrintPlane( gIOServicePlane );
}
if( gIOKitDebug & kIOLogMemory)
IOPrintMemory();
}
return( kIOReturnSuccess );
}
void IOSecureBSDRoot(const char * rootName)
{
#if CONFIG_EMBEDDED
IOReturn result;
IOPlatformExpert *pe;
const OSSymbol *functionName = OSSymbol::withCStringNoCopy("SecureRootName");
while ((pe = IOService::getPlatform()) == 0) IOSleep(1 * 1000);
result = pe->callPlatformFunction(functionName, false, (void *)rootName, (void *)0, (void *)0, (void *)0);
functionName->release();
if (result == kIOReturnNotPrivileged) mdevremoveall();
#endif
}
void *
IOBSDRegistryEntryForDeviceTree(char * path)
{
return (IORegistryEntry::fromPath(path, gIODTPlane));
}
void
IOBSDRegistryEntryRelease(void * entry)
{
IORegistryEntry * regEntry = (IORegistryEntry *)entry;
if (regEntry)
regEntry->release();
return;
}
const void *
IOBSDRegistryEntryGetData(void * entry, char * property_name,
int * packet_length)
{
OSData * data;
IORegistryEntry * regEntry = (IORegistryEntry *)entry;
data = (OSData *) regEntry->getProperty(property_name);
if (data) {
*packet_length = data->getLength();
return (data->getBytesNoCopy());
}
return (NULL);
}
kern_return_t IOBSDGetPlatformUUID( uuid_t uuid, mach_timespec_t timeout )
{
IOService * resources;
OSString * string;
resources = IOService::waitForService( IOService::resourceMatching( kIOPlatformUUIDKey ), ( timeout.tv_sec || timeout.tv_nsec ) ? &timeout : 0 );
if ( resources == 0 ) return KERN_OPERATION_TIMED_OUT;
string = ( OSString * ) IOService::getPlatform( )->getProvider( )->getProperty( kIOPlatformUUIDKey );
if ( string == 0 ) return KERN_NOT_SUPPORTED;
uuid_parse( string->getCStringNoCopy( ), uuid );
return KERN_SUCCESS;
}
kern_return_t IOBSDGetPlatformSerialNumber( char *serial_number_str, u_int32_t len )
{
OSDictionary * platform_dict;
IOService *platform;
OSString * string;
if (len < 1) {
return 0;
}
serial_number_str[0] = '\0';
platform_dict = IOService::serviceMatching( "IOPlatformExpertDevice" );
if (platform_dict == NULL) {
return KERN_NOT_SUPPORTED;
}
platform = IOService::waitForService( platform_dict );
if (platform) {
string = ( OSString * ) platform->getProperty( kIOPlatformSerialNumberKey );
if ( string == 0 ) {
return KERN_NOT_SUPPORTED;
} else {
strlcpy( serial_number_str, string->getCStringNoCopy( ), len );
}
}
return KERN_SUCCESS;
}
dev_t IOBSDGetMediaWithUUID( const char *uuid_cstring, char *bsd_name, int bsd_name_len, int timeout)
{
dev_t dev = 0;
OSDictionary *dictionary;
OSString *uuid_string;
if (bsd_name_len < 1) {
return 0;
}
bsd_name[0] = '\0';
dictionary = IOService::serviceMatching( "IOMedia" );
if( dictionary ) {
uuid_string = OSString::withCString( uuid_cstring );
if( uuid_string ) {
IOService *service;
mach_timespec_t tv = { timeout, 0 };
dictionary->setObject( "UUID", uuid_string );
dictionary->retain();
service = IOService::waitForService( dictionary, &tv );
if( service ) {
OSNumber *dev_major = (OSNumber *) service->getProperty( kIOBSDMajorKey );
OSNumber *dev_minor = (OSNumber *) service->getProperty( kIOBSDMinorKey );
OSString *iostr = (OSString *) service->getProperty( kIOBSDNameKey );
if( iostr)
strlcpy( bsd_name, iostr->getCStringNoCopy(), bsd_name_len );
if ( dev_major && dev_minor )
dev = makedev( dev_major->unsigned32BitValue(), dev_minor->unsigned32BitValue() );
}
uuid_string->release();
}
dictionary->release();
}
return dev;
}
void IOBSDIterateMediaWithContent(const char *content_uuid_cstring, int (*func)(const char *bsd_dev_name, const char *uuid_str, void *arg), void *arg)
{
OSDictionary *dictionary;
OSString *content_uuid_string;
dictionary = IOService::serviceMatching( "IOMedia" );
if( dictionary ) {
content_uuid_string = OSString::withCString( content_uuid_cstring );
if( content_uuid_string ) {
IOService *service;
OSIterator *iter;
dictionary->setObject( "Content", content_uuid_string );
dictionary->retain();
iter = IOService::getMatchingServices(dictionary);
while (iter && (service = (IOService *)iter->getNextObject())) {
if( service ) {
OSString *iostr = (OSString *) service->getProperty( kIOBSDNameKey );
OSString *uuidstr = (OSString *) service->getProperty( "UUID" );
const char *uuid;
if( iostr) {
if (uuidstr) {
uuid = uuidstr->getCStringNoCopy();
} else {
uuid = "00000000-0000-0000-0000-000000000000";
}
if (func && func(iostr->getCStringNoCopy(), uuid, arg) == 0) {
break;
}
}
}
}
if (iter)
iter->release();
content_uuid_string->release();
}
dictionary->release();
}
}
int IOBSDIsMediaEjectable( const char *cdev_name )
{
int ret = 0;
OSDictionary *dictionary;
OSString *dev_name;
if (strncmp(cdev_name, "/dev/", 5) == 0) {
cdev_name += 5;
}
dictionary = IOService::serviceMatching( "IOMedia" );
if( dictionary ) {
dev_name = OSString::withCString( cdev_name );
if( dev_name ) {
IOService *service;
mach_timespec_t tv = { 5, 0 };
dictionary->setObject( kIOBSDNameKey, dev_name );
dictionary->retain();
service = IOService::waitForService( dictionary, &tv );
if( service ) {
OSBoolean *ejectable = (OSBoolean *) service->getProperty( "Ejectable" );
if( ejectable ) {
ret = (int)ejectable->getValue();
}
}
dev_name->release();
}
dictionary->release();
}
return ret;
}
}