xnu-1228.0.2.tar.gz

[apple/xnu.git] / iokit / bsddev / IOKitBSDInit.cpp

diff --git a/iokit/bsddev/IOKitBSDInit.cpp b/iokit/bsddev/IOKitBSDInit.cpp
index e7ec120be3f9340b724e623c168d0e7721c30e12..7621a257f032f718745f1ea39427ba2a29220f67 100644 (file)
--- a/iokit/bsddev/IOKitBSDInit.cpp
+++ b/iokit/bsddev/IOKitBSDInit.cpp
@@ -36,6 +36,7 @@ extern "C" {
 
 #include <pexpert/pexpert.h>
 #include <kern/clock.h>
+#include <uuid/uuid.h>
 
 // how long to wait for matching root device, secs
 #define ROOTDEVICETIMEOUT      60
@@ -167,7 +168,8 @@ 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 )
@@ -185,6 +187,18 @@ OSDictionary * IONetworkNamePrefixMatching( const char * prefix )
         str->release();
         str = 0;
 
+               // see if we're contrained to netroot off of specific network type
+               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;
@@ -440,7 +454,7 @@ kern_return_t IOFindBSDRoot( char * rootName,
     UInt32             *ramdParms = 0;
 
     UInt32             flags = 0;
-    int                        minor, major;
+    int                        mnr, mjr;
     bool               findHFSChild = false;
     char *              mediaProperty = 0;
     char *             rdBootVar;
@@ -465,12 +479,20 @@ kern_return_t IOFindBSDRoot( char * rootName,
        return( kIOReturnNoMemory );
     rdBootVar = str + kMaxPathBuf;
 
-    if (!PE_parse_boot_arg("rd", rdBootVar )
-     && !PE_parse_boot_arg("rootdev", rdBootVar ))
+    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 ))) {
+            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();
@@ -570,10 +592,12 @@ kern_return_t IOFindBSDRoot( char * rootName,
        // from OpenFirmware path
        IOLog("From path: \"%s\", ", look);
 
-       if( forceNet || (0 == strncmp( look, "enet", strlen( "enet" ))) ) {
-            matching = IONetworkMatching( look, str, kMaxPathBuf );
-        } else {
-            matching = IODiskMatching( look, str, kMaxPathBuf );
+        if (!matching) {
+            if( forceNet || (0 == strncmp( look, "enet", strlen( "enet" ))) ) {
+                matching = IONetworkMatching( look, str, kMaxPathBuf );
+            } else {
+                matching = IODiskMatching( look, str, kMaxPathBuf );
+            }
         }
     }
     
@@ -595,7 +619,7 @@ kern_return_t IOFindBSDRoot( char * rootName,
             uuid = (char *)IOMalloc( kMaxBootVar );
                   
             if ( uuid ) {
-                if (!PE_parse_boot_arg( "boot-uuid", uuid )) {
+                if (!PE_parse_boot_argn( "boot-uuid", uuid, kMaxBootVar )) {
                     panic( "rd=uuid but no boot-uuid=<value> specified" ); 
                 } 
                 uuidString = OSString::withCString( uuid );
@@ -614,8 +638,9 @@ kern_return_t IOFindBSDRoot( char * rootName,
     }
 
     if( !matching) {
-        OSString * astring;
-       // any HFS
+       OSString * astring;
+       // Match any HFS media
+       
         matching = IOService::serviceMatching( "IOMedia" );
         astring = OSString::withCStringNoCopy("Apple_HFS");
         if ( astring ) {
@@ -675,11 +700,11 @@ kern_return_t IOFindBSDRoot( char * rootName,
         IOService * subservice = IOFindMatchingChild( service );
         if ( subservice ) service = subservice;
     } else if ( service && mediaProperty ) {
-        service = service->getProperty(mediaProperty);
+        service = (IOService *)service->getProperty(mediaProperty);
     }
 
-    major = 0;
-    minor = 0;
+    mjr = 0;
+    mnr = 0;
 
     // If the IOService we matched to is a subclass of IONetworkInterface,
     // then make sure it has been registered with BSD and has a BSD name
@@ -703,10 +728,10 @@ kern_return_t IOFindBSDRoot( char * rootName,
            strcpy( rootName, iostr->getCStringNoCopy() );
        off = (OSNumber *) service->getProperty( kIOBSDMajorKey );
        if( off)
-           major = off->unsigned32BitValue();
+           mjr = off->unsigned32BitValue();
        off = (OSNumber *) service->getProperty( kIOBSDMinorKey );
        if( off)
-           minor = off->unsigned32BitValue();
+           mnr = off->unsigned32BitValue();
 
        if( service->metaCast( "IONetworkInterface" ))
            flags |= 1;
@@ -719,12 +744,12 @@ kern_return_t IOFindBSDRoot( char * rootName,
     }
 
     IOLog( "BSD root: %s", rootName );
-    if( major)
-       IOLog(", major %d, minor %d\n", major, minor );
+    if( mjr)
+       IOLog(", major %d, minor %d\n", mjr, mnr );
     else
        IOLog("\n");
 
-    *root = makedev( major, minor );
+    *root = makedev( mjr, mnr );
     *oflags = flags;
 
     IOFree( str,  kMaxPathBuf + kMaxBootVar );
@@ -748,6 +773,20 @@ iofrootx:
     return( kIOReturnSuccess );
 }
 
+void IOSecureBSDRoot(const char * rootName)
+{
+#if CONFIG_EMBEDDED
+    IOPlatformExpert *pe;
+    const OSSymbol *functionName = OSSymbol::withCStringNoCopy("SecureRootName");
+    
+    while ((pe = IOService::getPlatform()) == 0) IOSleep(1 * 1000);
+    
+    pe->callPlatformFunction(functionName, false, (void *)rootName, (void *)0, (void *)0, (void *)0);
+    
+    functionName->release();
+#endif
+}
+
 void *
 IOBSDRegistryEntryForDeviceTree(char * path)
 {
@@ -779,4 +818,20 @@ IOBSDRegistryEntryGetData(void * entry, char * property_name,
     return (NULL);
 }
 
+kern_return_t IOBSDGetPlatformUUID( uuid_t uuid, mach_timespec_t timeout )
+{
+    IOService * resources;
+    OSString *  string;
+
+    resources = IOService::waitForService( IOService::resourceMatching( kIOPlatformUUIDKey ), &timeout );
+    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;
+}
+
 } /* extern "C" */