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--- xnu/xnu-124.13/iokit/bsddev/IOKitBSDInit.cpp
+++ xnu/xnu-792.6.76/iokit/bsddev/IOKitBSDInit.cpp
@@ -24,12 +24,7 @@
#include <IOKit/IOService.h>
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/IOKitKeys.h>
-#include <IOKit/storage/IOMedia.h>
-#include <IOKit/network/IONetworkStack.h>
-#include <IOKit/network/IONetworkInterface.h>
#include <IOKit/IOPlatformExpert.h>
-
-#include <sys/disklabel.h>
extern "C" {
@@ -39,12 +34,12 @@
// how long to wait for matching root device, secs
#define ROOTDEVICETIMEOUT 60
+extern dev_t mdevadd(int devid, ppnum_t base, unsigned int size, int phys);
+extern dev_t mdevlookup(int devid);
kern_return_t
IOKitBSDInit( void )
{
- IOLog("IOKitBSDInit\n");
-
IOService::publishResource("IOBSD");
return( kIOReturnSuccess );
@@ -76,6 +71,34 @@
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,
@@ -152,7 +175,7 @@
if ( str == 0 )
continue;
- propDict->setObject( kIOInterfaceNamePrefix, (OSObject *) str );
+ propDict->setObject( "IOInterfaceNamePrefix", (OSObject *) str );
str->release();
str = 0;
@@ -174,26 +197,57 @@
return( 0 );
}
-static bool IORegisterNetworkInterface( IONetworkInterface * netif )
-{
- IONetworkStack * stack;
-
- if (( stack = IONetworkStack::getNetworkStack() ))
- {
- stack->registerInterface( netif, netif->getNamePrefix() );
- }
+static bool IORegisterNetworkInterface( IOService * netif )
+{
+ // A network interface is typically named and registered
+ // with BSD after receiving a request from a user space
+ // "namer". However, for cases when the system needs to
+ // root from the network, this registration task must be
+ // done inside the kernel and completed before the root
+ // device is handed to BSD.
+
+ 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 );
-}
-
-static void IORegisterPrimaryNetworkInterface()
-{
- IONetworkStack * stack;
-
- if (( stack = IONetworkStack::getNetworkStack() ))
- {
- stack->registerPrimaryInterface( true );
- }
}
OSDictionary * IODiskMatching( const char * path, char * buf, int maxLen )
@@ -203,6 +257,7 @@
char * comp;
long unit = -1;
long partition = -1;
+ long lun = -1;
char c;
// scan the tail of the path for "@unit:partition"
@@ -210,7 +265,7 @@
// 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) {
@@ -219,7 +274,12 @@
partition = strtol( look + 1, 0, 0 );
c = '@';
} else if( c == '@') {
- unit = strtol( look + 1, 0, 16 );
+ unit = strtol( look + 1, &comp, 16 );
+
+ if( *comp == ',') {
+ lun = strtol( comp + 1, 0, 16 );
+ }
+
c = '/';
} else if( c == '/') {
c = 0;
@@ -235,29 +295,36 @@
}
if( c || unit == -1 || partition == -1)
continue;
-
+
maxLen -= strlen( "{" kIOPathMatchKey "='" kIODeviceTreePlane ":" );
maxLen -= ( alias ? strlen( alias ) : 0 ) + (look - path);
- maxLen -= strlen( "/@hhhhhhhh:dddddddddd';}" );
+ maxLen -= strlen( "/@hhhhhhhh,hhhhhhhh:dddddddddd';}" );
if( maxLen > 0) {
sprintf( buf, "{" kIOPathMatchKey "='" kIODeviceTreePlane ":" );
comp = buf + strlen( buf );
-
+
if( alias) {
strcpy( comp, alias );
comp += strlen( alias );
}
-
+
if ( (look - path)) {
strncpy( comp, path, look - path);
comp += look - path;
}
-
- sprintf( comp, "/@%lx:%ld';}", unit, partition );
+
+ if ( lun != -1 )
+ {
+ sprintf ( comp, "/@%lx,%lx:%ld';}", unit, lun, partition );
+ }
+ else
+ {
+ sprintf( comp, "/@%lx:%ld';}", unit, partition );
+ }
} else
continue;
-
+
return( OSDynamicCast(OSDictionary, OSUnserialize( buf, 0 )) );
} while( false );
@@ -267,12 +334,92 @@
OSDictionary * IOOFPathMatching( const char * path, char * buf, int maxLen )
{
+ OSDictionary * matching;
+ OSString * str;
+ char * comp;
+ int len;
+
/* need to look up path, get device type,
call matching help based on device type */
- return( IODiskMatching( path, buf, maxLen ));
-
-}
+ matching = IODiskMatching( path, buf, maxLen );
+ if( matching)
+ return( matching );
+
+ do {
+
+ len = strlen( kIODeviceTreePlane ":" );
+ maxLen -= len;
+ if( maxLen < 0)
+ continue;
+
+ strcpy( buf, kIODeviceTreePlane ":" );
+ comp = buf + len;
+
+ len = strlen( path );
+ maxLen -= len;
+ if( maxLen < 0)
+ continue;
+ strncpy( comp, path, len );
+ comp[ len ] = 0;
+
+ 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 )
+{
+ // 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;
kern_return_t IOFindBSDRoot( char * rootName,
dev_t * root, u_int32_t * oflags )
@@ -284,17 +431,25 @@
OSString * iostr;
OSNumber * off;
OSData * data = 0;
+ UInt32 *ramdParms = 0;
UInt32 flags = 0;
int minor, major;
+ 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;
static int mountAttempts = 0;
+
+ int xchar, dchar;
+
if( mountAttempts++)
IOSleep( 5 * 1000 );
@@ -309,62 +464,156 @@
rdBootVar[0] = 0;
do {
- if( (regEntry = IORegistryEntry::fromPath( "/chosen", gIODTPlane ))) {
+ if( (regEntry = IORegistryEntry::fromPath( "/chosen", gIODTPlane ))) {
+ data = (OSData *) regEntry->getProperty( "boot-uuid" );
+ if( data) {
+ uuidStr = (const char*)data->getBytesNoCopy();
+ OSString *uuidString = OSString::withCString( uuidStr );
+
+ // match the boot-args boot-uuid processing below
+ 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;
+ }
+ }
+
+ // else try for an OF Path
data = (OSData *) regEntry->getProperty( "rootpath" );
regEntry->release();
- if( data)
- continue;
+ if( data) continue;
}
if( (regEntry = IORegistryEntry::fromPath( "/options", gIODTPlane ))) {
data = (OSData *) regEntry->getProperty( "boot-file" );
regEntry->release();
- if( data)
- continue;
+ if( data) continue;
}
} while( false );
- if( data)
+ if( data && !uuidStr)
look = (const char *) data->getBytesNoCopy();
if( rdBootVar[0] == '*') {
look = rdBootVar + 1;
- forceNet = false;
+ forceNet = false;
} else {
if( (regEntry = IORegistryEntry::fromPath( "/", gIODTPlane ))) {
forceNet = (0 != regEntry->getProperty( "net-boot" ));
- regEntry->release();
+ regEntry->release();
+ }
+ }
+
+
+
+//
+// See if we have a RAMDisk property in /chosen/memory-map. If so, make it into a device.
+// It will become /dev/mdx, where x is 0-f.
+//
+
+ if(!didRam) { /* Have we already build this ram disk? */
+ didRam = 1; /* Remember we did this */
+ 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 */
+
+ ramdParms = (UInt32 *)data->getBytesNoCopy(); /* Point to the ram disk base and size */
+ (void)mdevadd(-1, ramdParms[0] >> 12, ramdParms[1] >> 12, 0); /* Initialize it and pass back the device number */
+ }
+ regEntry->release(); /* Toss the entry */
+ }
}
- }
+
+//
+// Now check if we are trying to root on a memory device
+//
+
+ if((rdBootVar[0] == 'm') && (rdBootVar[1] == 'd') && (rdBootVar[3] == 0)) {
+ dchar = xchar = rdBootVar[2]; /* Get the actual device */
+ if((xchar >= '0') && (xchar <= '9')) xchar = xchar - '0'; /* If digit, convert */
+ else {
+ xchar = xchar & ~' '; /* Fold to upper case */
+ if((xchar >= 'A') && (xchar <= 'F')) { /* Is this a valid digit? */
+ xchar = (xchar & 0xF) + 9; /* Convert the hex digit */
+ dchar = dchar | ' '; /* Fold to lower case */
+ }
+ else xchar = -1; /* Show bogus */
+ }
+ if(xchar >= 0) { /* Do we have a valid memory device name? */
+ *root = mdevlookup(xchar); /* Find the device number */
+ if(*root >= 0) { /* Did we find one? */
+
+ rootName[0] = 'm'; /* Build root name */
+ rootName[1] = 'd'; /* Build root name */
+ rootName[2] = dchar; /* Build root name */
+ rootName[3] = 0; /* Build root name */
+ IOLog("BSD root: %s, major %d, minor %d\n", rootName, major(*root), minor(*root));
+ *oflags = 0; /* Show that this is not network */
+ goto iofrootx; /* Join common exit... */
+ }
+ panic("IOFindBSDRoot: specified root memory device, %s, has not been configured\n", rdBootVar); /* Not there */
+ }
+ }
if( look) {
// from OpenFirmware path
IOLog("From path: \"%s\", ", look);
- if( forceNet || (0 == strncmp( look, "enet", strlen( "enet" ))) )
- matching = IONetworkMatching( look, str, kMaxPathBuf );
- else
+ if( forceNet || (0 == strncmp( look, "enet", strlen( "enet" ))) ) {
+ matching = IONetworkMatching( look, str, kMaxPathBuf );
+ } else {
matching = IODiskMatching( look, str, kMaxPathBuf );
- }
-
- if( (!matching) && rdBootVar[0] ) {
+ }
+ }
+
+ if( (!matching) && rdBootVar[0] ) {
// by BSD name
look = rdBootVar;
if( look[0] == '*')
look++;
- if ( strncmp( look, "en", strlen( "en" )) == 0 )
- matching = IONetworkNamePrefixMatching( "en" );
- else
- matching = IOBSDNameMatching( 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_arg( "boot-uuid", uuid )) {
+ 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;
- // any UFS
+ // any HFS
matching = IOService::serviceMatching( "IOMedia" );
- astring = OSString::withCStringNoCopy("Apple_UFS");
+ astring = OSString::withCStringNoCopy("Apple_HFS");
if ( astring ) {
- matching->setObject(kIOMediaContentKey, astring);
+ matching->setObject("Content", astring);
astring->release();
}
}
@@ -377,8 +626,6 @@
s->release();
}
}
-
- IOService::waitForService(IOService::serviceMatching("IOMediaBSDClient"));
do {
t.tv_sec = ROOTDEVICETIMEOUT;
@@ -388,10 +635,43 @@
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;
+ // wait for children services to finish registering
+ while ( waiting ) {
+ t.tv_sec = ROOTDEVICETIMEOUT;
+ t.tv_nsec = 0;
+ if ( service->waitQuiet( &t ) == 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 = service->getProperty(mediaProperty);
+ }
+
major = 0;
minor = 0;
@@ -401,11 +681,10 @@
if ( service
&& service->metaCast( "IONetworkInterface" )
- && !IORegisterNetworkInterface( (IONetworkInterface *) service ) )
+ && !IORegisterNetworkInterface( service ) )
{
service = 0;
}
- IORegisterPrimaryNetworkInterface();
if( service) {
@@ -444,10 +723,10 @@
IOFree( str, kMaxPathBuf + kMaxBootVar );
- if( gIOKitDebug & (kIOLogDTree | kIOLogServiceTree | kIOLogMemory)) {
-
- IOSleep(10 * 1000);
-// IOService::getPlatform()->waitQuiet();
+iofrootx:
+ if( (gIOKitDebug & (kIOLogDTree | kIOLogServiceTree | kIOLogMemory)) && !debugInfoPrintedOnce) {
+
+ IOService::getPlatform()->waitQuiet();
if( gIOKitDebug & kIOLogDTree) {
IOLog("\nDT plane:\n");
IOPrintPlane( gIODTPlane );
@@ -463,4 +742,35 @@
return( kIOReturnSuccess );
}
+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);
+}
+
} /* extern "C" */