1/* 2 * Copyright (c) 2005-2007 Apple Inc. All Rights Reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23/* 24 * BLGetPreBootEnvironmentType.c 25 * bless 26 * 27 * Created by Shantonu Sen on 7/12/05. 28 * Copyright 2005-2007 Apple Inc. All Rights Reserved. 29 * 30 */ 31 32#include <stdlib.h> 33#include <unistd.h> 34#include <sys/param.h> 35 36#include <mach/mach_error.h> 37 38#include <IOKit/IOKitLib.h> 39#include <IOKit/IOKitKeys.h> 40 41#include <CoreFoundation/CoreFoundation.h> 42 43#include "bless.h" 44#include "bless_private.h" 45 46#define kBootRomPath "/openprom" 47#define kEFIPath "/efi" 48#define kiBootPath "/chosen/iBoot" 49 50int BLGetPreBootEnvironmentType(BLContextPtr context, 51 BLPreBootEnvType *pbType) { 52 const char *path = NULL; 53 kern_return_t ret; 54 io_registry_entry_t entry = 0; 55 CFMutableDictionaryRef props = NULL; 56 CFDataRef model = NULL; 57 mach_port_t masterPort; 58 59#if 0 60 *pbType = kBLPreBootEnvType_EFI; 61 return 0; 62#endif 63 64 ret = IOMasterPort( MACH_PORT_NULL, &masterPort ); 65 if(ret) return 0; 66 67 path = kIODeviceTreePlane ":" kBootRomPath; 68 69 entry = IORegistryEntryFromPath(masterPort, path); 70 71 if(entry == 0) { 72 path = kIODeviceTreePlane ":" kEFIPath; 73 74 entry = IORegistryEntryFromPath(masterPort, path); 75 76 if(entry == 0) { 77 path = kIODeviceTreePlane ":" kiBootPath; 78 79 entry = IORegistryEntryFromPath(masterPort, path); 80 81 if(entry == 0) { 82 *pbType = kBLPreBootEnvType_Unknown; 83 contextprintf(context, kBLLogLevelVerbose, "No OpenFirmware or EFI.\n"); 84 } else { 85 *pbType = kBLPreBootEnvType_iBoot; 86 IOObjectRelease(entry); 87 contextprintf(context, kBLLogLevelVerbose, "iBoot found at %s\n", path); 88 } 89 } else { 90 *pbType = kBLPreBootEnvType_EFI; 91 IOObjectRelease(entry); 92 contextprintf(context, kBLLogLevelVerbose, "EFI found at %s\n", path); 93 } 94 95 return 0; 96 } 97 98 // for OF 99 ret = IORegistryEntryCreateCFProperties(entry, &props, 100 kCFAllocatorDefault, 0); 101 102 if(ret) { 103 contextprintf(context, kBLLogLevelError, "Could not get entry properties\n"); 104 CFRelease(props); 105 IOObjectRelease(entry); 106 // unknown 107 return 0; 108 } 109 110 model = CFDictionaryGetValue(props, CFSTR("model")); 111 if(model == NULL) { 112 contextprintf(context, kBLLogLevelVerbose, "No 'model' property for %s\n", path); 113 CFRelease(props); 114 IOObjectRelease(entry); 115 return 0; 116 } 117 118 *pbType = kBLPreBootEnvType_OpenFirmware; 119 contextprintf(context, kBLLogLevelVerbose, "OpenFirmware found at %s\n", path); 120 contextprintf(context, kBLLogLevelVerbose, "OpenFirmware model is \"%*s\"\n", (int)CFDataGetLength(model), CFDataGetBytePtr(model)); 121 122 CFRelease(props); 123 IOObjectRelease(entry); 124 125 return 0; 126} 127