Loading...
--- xnu/xnu-3248.50.21/iokit/bsddev/IOKitBSDInit.cpp
+++ xnu/xnu-1504.9.26/iokit/bsddev/IOKitBSDInit.cpp
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1998-2011 Apple Inc. All rights reserved.
+ * Copyright (c) 1998-2008 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
@@ -32,15 +32,12 @@
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/IOKitKeys.h>
#include <IOKit/IOPlatformExpert.h>
-#include <IOKit/IOUserClient.h>
extern "C" {
#include <pexpert/pexpert.h>
#include <kern/clock.h>
#include <uuid/uuid.h>
-#include <sys/vnode_internal.h>
-#include <sys/mount.h>
// how long to wait for matching root device, secs
#if DEBUG
@@ -49,31 +46,9 @@
#define ROOTDEVICETIMEOUT 60
#endif
-int panic_on_exception_triage = 0;
-
-extern dev_t mdevadd(int devid, uint64_t base, unsigned int size, int phys);
+extern dev_t mdevadd(int devid, ppnum_t base, unsigned int size, int phys);
extern dev_t mdevlookup(int devid);
extern void mdevremoveall(void);
-extern void di_root_ramfile(IORegistryEntry * entry);
-
-
-#if DEVELOPMENT
-#define IOPOLLED_COREFILE 1
-// no sizing
-#define kIOCoreDumpSize 0ULL
-#define kIOCoreDumpFreeSize 0ULL
-#else
-#define IOPOLLED_COREFILE 0
-#endif
-
-
-#if IOPOLLED_COREFILE
-static bool
-NewKernelCoreMedia(void * target, void * refCon,
- IOService * newService,
- IONotifier * notifier);
-#endif /* IOPOLLED_COREFILE */
-
kern_return_t
IOKitBSDInit( void )
@@ -179,6 +154,83 @@
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;
+
+ // remove parameters following ':' from the path
+ 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;
@@ -286,13 +338,121 @@
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;
+
+ // scan the tail of the path for "@unit:partition"
+ do {
+ // Have to get the full path to the controller - an alias may
+ // tell us next to nothing, like "hd:8"
+ 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 = NULL;
+ OSDictionary * matching;
OSString * str;
char * comp;
int len;
+ /* need to look up path, get device type,
+ call matching help based on device type */
+
+ matching = IODiskMatching( path, buf, maxLen );
+ if( matching)
+ return( matching );
+
do {
len = strlen( kIODeviceTreePlane ":" );
@@ -329,8 +489,43 @@
return( 0 );
}
+IOService * IOFindMatchingChild( IOService * service )
+{
+ // find a matching child 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;
-enum { kMaxPathBuf = 512, kMaxBootVar = 128 };
kern_return_t IOFindBSDRoot( char * rootName, unsigned int rootNameSize,
dev_t * root, u_int32_t * oflags )
@@ -342,14 +537,18 @@
OSString * iostr;
OSNumber * off;
OSData * data = 0;
+ UInt32 *ramdParms = 0;
UInt32 flags = 0;
int mnr, mjr;
- const char * mediaProperty = 0;
+ bool findHFSChild = false;
+ 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;
@@ -372,7 +571,6 @@
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()));
@@ -399,9 +597,33 @@
uuidStr = NULL;
}
}
+
+ // else try for an OF Path
+ 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();
+ }
+ }
+
+
//
// See if we have a RAMDisk property in /chosen/memory-map. If so, make it into a device.
@@ -413,8 +635,8 @@
if((regEntry = IORegistryEntry::fromPath( "/chosen/memory-map", gIODTPlane ))) { /* Find the map node */
data = (OSData *)regEntry->getProperty("RAMDisk"); /* Find the ram disk, if there */
if(data) { /* We found one */
- uintptr_t *ramdParms;
- ramdParms = (uintptr_t *)data->getBytesNoCopy(); /* Point to the ram disk base and size */
+
+ ramdParms = (UInt32 *)data->getBytesNoCopy(); /* Point to the ram disk base and size */
(void)mdevadd(-1, ml_static_ptovirt(ramdParms[0]) >> 12, ramdParms[1] >> 12, 0); /* Initialize it and pass back the device number */
}
regEntry->release(); /* Toss the entry */
@@ -452,6 +674,19 @@
}
}
+ if( look) {
+ // from OpenFirmware path
+ 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] ) {
// by BSD name
look = rdBootVar;
@@ -460,7 +695,10 @@
if ( strncmp( look, "en", strlen( "en" )) == 0 ) {
matching = IONetworkNamePrefixMatching( "en" );
- } else if ( strncmp( look, "uuid", strlen( "uuid" )) == 0 ) {
+ } else if ( strncmp( look, "cdrom", strlen( "cdrom" )) == 0 ) {
+ matching = IOCDMatching();
+ findHFSChild = true;
+ } else if ( strncmp( look, "uuid", strlen( "uuid" )) == 0 ) {
char *uuid;
OSString *uuidString;
@@ -497,11 +735,6 @@
}
}
- if( gIOKitDebug & kIOWaitQuietBeforeRoot ) {
- IOLog( "Waiting for matching to complete\n" );
- IOService::getPlatform()->waitQuiet();
- }
-
if( true && matching) {
OSSerialize * s = OSSerialize::withCapacity( 5 );
@@ -537,7 +770,25 @@
} while( !service);
matching->release();
- if ( service && mediaProperty ) {
+ if ( service && findHFSChild ) {
+ bool waiting = true;
+ uint64_t timeoutNS;
+
+ // wait for children services to finish registering
+ while ( waiting ) {
+ timeoutNS = ROOTDEVICETIMEOUT;
+ timeoutNS *= kSecondScale;
+
+ if ( (service->waitQuiet(timeoutNS) ) == kIOReturnSuccess) {
+ waiting = false;
+ } else {
+ IOLog( "Waiting for child registration\n" );
+ }
+ }
+ // look for a subservice with an Apple_HFS child
+ IOService * subservice = IOFindMatchingChild( service );
+ if ( subservice ) service = subservice;
+ } else if ( service && mediaProperty ) {
service = (IOService *)service->getProperty(mediaProperty);
}
@@ -611,20 +862,23 @@
return( kIOReturnSuccess );
}
-bool IORamDiskBSDRoot(void)
-{
- char rdBootVar[kMaxBootVar];
- if (PE_parse_boot_argn("rd", rdBootVar, kMaxBootVar )
- || PE_parse_boot_argn("rootdev", rdBootVar, kMaxBootVar )) {
- if((rdBootVar[0] == 'm') && (rdBootVar[1] == 'd') && (rdBootVar[3] == 0)) {
- return true;
- }
- }
- return false;
-}
-
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);
+
+ // Returns kIOReturnNotPrivileged is the root device is not secure.
+ // Returns kIOReturnUnsupported if "SecureRootName" is not implemented.
+ result = pe->callPlatformFunction(functionName, false, (void *)rootName, (void *)0, (void *)0, (void *)0);
+
+ functionName->release();
+
+ if (result == kIOReturnNotPrivileged) mdevremoveall();
+#endif
}
void *
@@ -663,7 +917,7 @@
IOService * resources;
OSString * string;
- resources = IOService::waitForService( IOService::resourceMatching( kIOPlatformUUIDKey ), ( timeout.tv_sec || timeout.tv_nsec ) ? &timeout : 0 );
+ resources = IOService::waitForService( IOService::resourceMatching( kIOPlatformUUIDKey ), &timeout );
if ( resources == 0 ) return KERN_OPERATION_TIMED_OUT;
string = ( OSString * ) IOService::getPlatform( )->getProvider( )->getProperty( kIOPlatformUUIDKey );
@@ -702,6 +956,47 @@
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 }; // wait up to "timeout" seconds for the device
+
+ 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)
{
@@ -786,157 +1081,3 @@
}
} /* extern "C" */
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <sys/conf.h>
-#include <sys/vnode.h>
-#include <sys/vnode_internal.h>
-#include <sys/fcntl.h>
-#include <IOKit/IOPolledInterface.h>
-#include <IOKit/IOBufferMemoryDescriptor.h>
-
-IOPolledFileIOVars * gIOPolledCoreFileVars;
-
-#if IOPOLLED_COREFILE
-
-static IOReturn
-IOOpenPolledCoreFile(const char * filename)
-{
- IOReturn err;
- unsigned int debug;
-
- if (gIOPolledCoreFileVars) return (kIOReturnBusy);
- if (!IOPolledInterface::gMetaClass.getInstanceCount()) return (kIOReturnUnsupported);
-
- debug = 0;
- PE_parse_boot_argn("debug", &debug, sizeof (debug));
- if (DB_DISABLE_LOCAL_CORE & debug) return (kIOReturnUnsupported);
-
- err = IOPolledFileOpen(filename, kIOCoreDumpSize, kIOCoreDumpFreeSize,
- NULL, 0,
- &gIOPolledCoreFileVars, NULL, NULL, 0);
- if (kIOReturnSuccess != err) return (err);
-
- err = IOPolledFilePollersSetup(gIOPolledCoreFileVars, kIOPolledPreflightCoreDumpState);
- if (kIOReturnSuccess != err)
- {
- IOPolledFileClose(&gIOPolledCoreFileVars, NULL, NULL, 0, 0, 0);
- }
-
- return (err);
-}
-
-static void
-IOClosePolledCoreFile(void)
-{
- IOPolledFilePollersClose(gIOPolledCoreFileVars, kIOPolledPostflightCoreDumpState);
- IOPolledFileClose(&gIOPolledCoreFileVars, NULL, NULL, 0, 0, 0);
-}
-
-static thread_call_t gIOOpenPolledCoreFileTC;
-static IONotifier * gIOPolledCoreFileNotifier;
-static IONotifier * gIOPolledCoreFileInterestNotifier;
-
-static IOReturn
-KernelCoreMediaInterest(void * target, void * refCon,
- UInt32 messageType, IOService * provider,
- void * messageArgument, vm_size_t argSize )
-{
- if (kIOMessageServiceIsTerminated == messageType)
- {
- gIOPolledCoreFileInterestNotifier->remove();
- gIOPolledCoreFileInterestNotifier = 0;
- IOClosePolledCoreFile();
- }
-
- return (kIOReturnSuccess);
-}
-
-static void
-OpenKernelCoreMedia(thread_call_param_t p0, thread_call_param_t p1)
-{
- IOService * newService;
- OSString * string;
- char filename[16];
-
- newService = (IOService *) p1;
- do
- {
- if (gIOPolledCoreFileVars) break;
- string = OSDynamicCast(OSString, newService->getProperty(kIOBSDNameKey));
- if (!string) break;
- snprintf(filename, sizeof(filename), "/dev/%s", string->getCStringNoCopy());
- if (kIOReturnSuccess != IOOpenPolledCoreFile(filename)) break;
- gIOPolledCoreFileInterestNotifier = newService->registerInterest(
- gIOGeneralInterest, &KernelCoreMediaInterest, NULL, 0);
- }
- while (false);
-
- newService->release();
-}
-
-static bool
-NewKernelCoreMedia(void * target, void * refCon,
- IOService * newService,
- IONotifier * notifier)
-{
- do
- {
- if (gIOPolledCoreFileVars) break;
- if (!gIOOpenPolledCoreFileTC) break;
- newService = newService->getProvider();
- if (!newService) break;
- newService->retain();
- thread_call_enter1(gIOOpenPolledCoreFileTC, newService);
- }
- while (false);
-
- return (false);
-}
-
-#endif /* IOPOLLED_COREFILE */
-
-extern "C" void
-IOBSDMountChange(struct mount * mp, uint32_t op)
-{
-#if IOPOLLED_COREFILE
-
- OSDictionary * bsdMatching;
- OSDictionary * mediaMatching;
- OSString * string;
-
- if (!gIOPolledCoreFileNotifier) do
- {
- if (!gIOOpenPolledCoreFileTC) gIOOpenPolledCoreFileTC = thread_call_allocate(&OpenKernelCoreMedia, NULL);
- bsdMatching = IOService::serviceMatching("IOMediaBSDClient");
- if (!bsdMatching) break;
- mediaMatching = IOService::serviceMatching("IOMedia");
- string = OSString::withCStringNoCopy("5361644D-6163-11AA-AA11-00306543ECAC");
- if (!string || !mediaMatching) break;
- mediaMatching->setObject("Content", string);
- string->release();
- bsdMatching->setObject(gIOParentMatchKey, mediaMatching);
- mediaMatching->release();
-
- gIOPolledCoreFileNotifier = IOService::addMatchingNotification(
- gIOFirstMatchNotification, bsdMatching,
- &NewKernelCoreMedia, NULL, NULL, -1000);
- }
- while (false);
-
-#endif /* IOPOLLED_COREFILE */
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-extern "C" boolean_t
-IOTaskHasEntitlement(task_t task, const char * entitlement)
-{
- OSObject * obj;
- obj = IOUserClient::copyClientEntitlement(task, entitlement);
- if (!obj) return (false);
- obj->release();
- return (obj != kOSBooleanFalse);
-}
-