/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <libkern/c++/OSContainers.h>
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/IORegistryEntry.h>
#include <IOKit/IOCatalogue.h>
+#include <IOKit/IOKitKeysPrivate.h>
#include <libkern/c++/OSUnserialize.h>
#include <libkern/OSByteOrder.h>
#include <libsa/catalogue.h>
extern "C" {
extern void IODTFreeLoaderInfo( char *key, void *infoAddr, int infoSize );
-extern kern_return_t host_info(host_t host,
- host_flavor_t flavor,
- host_info_t info,
- mach_msg_type_number_t *count);
-extern int check_cpu_subtype(cpu_subtype_t cpu_subtype);
-extern struct section *
-getsectbyname(
- char *segname,
- char *sectname);
-extern struct segment_command *
-getsegbyname(char *seg_name);
+// extern kern_return_t host_info(host_t host,
+// host_flavor_t flavor,
+// host_info_t info,
+// mach_msg_type_number_t *count);
+extern int grade_binary(cpu_type_t exectype, cpu_subtype_t execsubtype);
+// Return the address of the named Mach-O segment from the currently
+// executing 32 bit kernel, or NULL.
+extern struct segment_command *getsegbyname(char *seg_name);
+// Return the address of the named section from the named Mach-O segment
+// from the currently executing 32 bit kernel, or NULL.
+extern struct section *getsectbyname(const char *segname, const char *sectname);
};
#define LOG_DELAY()
bool id_missing = false;
bool is_kernel_resource = false;
bool has_executable = false;
+ bool ineligible_for_safe_boot = false;
OSString * bundleIdentifier = NULL; // do not release
OSObject * rawValue = NULL; // do not release
OSString * stringValue = NULL; // do not release
OSString * key = NULL; // do not release
VERS_version vers;
VERS_version compatible_vers;
+ char namep[16]; // unused but needed for PE_parse_boot_arg()
// Info dict is a dictionary
if (!OSDynamicCast(OSDictionary, extension)) {
keyIterator = NULL;
}
- // OSBundleRequired is a legal value - *not* required at boot time
- // so we can do install CDs and the like with mkext files containing
- // all normally-used drivers.
+ // OSBundleRequired, if present, must have a legal value.
+ // If it is not present and if we are safe-booting,
+ // then the kext is not eligible.
+ //
rawValue = extension->getObject("OSBundleRequired");
if (rawValue) {
stringValue = OSDynamicCast(OSString, rawValue);
goto finish;
}
+ } else if (PE_parse_boot_arg("-x", namep)) { /* safe boot */
+ ineligible_for_safe_boot = true;
+ result = false;
+ goto finish;
}
if (keyIterator) keyIterator->release();
if (!result) {
- if (not_a_dict) {
+ if (ineligible_for_safe_boot) {
+ IOLog(VTYELLOW "Skipping extension \"%s\" during safe boot "
+ "(no OSBundleRequired property)\n"
+ VTRESET,
+ bundleIdentifier->getCStringNoCopy());
+ } else if (not_a_dict) {
if (index > -1) {
- IOLog(VTYELLOW "mkext entry %d:." VTRESET, index);
+ IOLog(VTYELLOW "mkext entry %d: " VTRESET, index);
} else {
- IOLog(VTYELLOW "kernel extension" VTRESET);
+ IOLog(VTYELLOW "kernel extension " VTRESET);
}
IOLog(VTYELLOW "info dictionary isn't a dictionary\n"
VTRESET);
} else if (id_missing) {
if (index > -1) {
- IOLog(VTYELLOW "mkext entry %d:." VTRESET, index);
+ IOLog(VTYELLOW "mkext entry %d: " VTRESET, index);
} else {
- IOLog(VTYELLOW "kernel extension" VTRESET);
+ IOLog(VTYELLOW "kernel extension " VTRESET);
}
IOLog(VTYELLOW "\"CFBundleIdentifier\" property is "
"missing or not a string\n"
OSString * errorString = NULL;
OSDictionary * driverDict = NULL;
- MemoryMapFileInfo * driverInfo = 0;
+ const MemoryMapFileInfo * driverInfo = 0;
BootxDriverInfo * dataBuffer;
kmod_info_t * loaded_kmod = NULL;
goto finish;
}
- driverInfo = (MemoryMapFileInfo *)
+ driverInfo = (const MemoryMapFileInfo *)
bootxDriverDataObject->getBytesNoCopy(0,
sizeof(MemoryMapFileInfo));
- dataBuffer = (BootxDriverInfo *)ml_static_ptovirt(
- driverInfo->paddr);
+#if defined (__ppc__) || defined (__arm__)
+ dataBuffer = (BootxDriverInfo *)ml_static_ptovirt(driverInfo->paddr);
+#elif defined (__i386__)
+ dataBuffer = (BootxDriverInfo *)ml_boot_ptovirt(driverInfo->paddr);
+ dataBuffer->plistAddr = (char *)ml_boot_ptovirt((vm_address_t)dataBuffer->plistAddr);
+ if (dataBuffer->moduleAddr)
+ dataBuffer->moduleAddr = (void *)ml_boot_ptovirt((vm_address_t)dataBuffer->moduleAddr);
+#else
+#error unsupported architecture
+#endif
if (!dataBuffer) {
IOLog("Error: No data buffer "
"for device tree entry \"%s\".\n", memory_map_name);
finish:
if (loaded_kmod) {
- kfree((unsigned int)loaded_kmod, sizeof(kmod_info_t));
+ kfree(loaded_kmod, sizeof(kmod_info_t));
}
// do not release bootxDriverDataObject
bool uncompressModule(OSData *compData, /* out */ OSData ** file) {
- MkextEntryInfo *info = (MkextEntryInfo *) compData->getBytesNoCopy();
+ const MkextEntryInfo *info = (const MkextEntryInfo *) compData->getBytesNoCopy();
return uncompressFile((u_int8_t *) info->base_address,
info->fileinfo, file);
* Does the work of pulling extensions out of an mkext archive located
* in memory.
*********************************************************************/
-bool extractExtensionsFromArchive(MemoryMapFileInfo * mkext_file_info,
+bool extractExtensionsFromArchive(const MemoryMapFileInfo * mkext_file_info,
+ bool vaddr,
OSDictionary * extensions) {
bool result = true;
OSData * moduleInfo = 0; // must release
MkextEntryInfo module_info;
- mkext_data = (mkext_header *)mkext_file_info->paddr;
+ IORegistryEntry * root;
+ OSData * checksumObj;
+
+ if (vaddr) {
+ // addExtensionsFromArchive passes a kernel virtual address
+ mkext_data = (mkext_header *)mkext_file_info->paddr;
+ } else {
+#if defined (__ppc__) || defined (__arm__)
+ mkext_data = (mkext_header *)ml_static_ptovirt(mkext_file_info->paddr);
+#elif defined (__i386__)
+ mkext_data = (mkext_header *)ml_boot_ptovirt(mkext_file_info->paddr);
+#else
+#error unsupported architecture
+#endif
+ }
if (OSSwapBigToHostInt32(mkext_data->magic) != MKEXT_MAGIC ||
OSSwapBigToHostInt32(mkext_data->signature) != MKEXT_SIGN) {
goto finish;
}
+ root = IORegistryEntry::getRegistryRoot();
+ assert(root);
+ checksumObj = OSData::withBytes((void *)&checksum,
+ sizeof(checksum));
+ assert(checksumObj);
+ if (checksumObj) {
+ root->setProperty(kIOStartupMkextCRC, checksumObj);
+ checksumObj->release();
+ }
+
/* If the MKEXT archive isn't fat, check that the CPU type & subtype
* match that of the running kernel.
*/
result = false;
goto finish;
}
- if (!check_cpu_subtype(OSSwapBigToHostInt32(mkext_data->cpusubtype))) {
+ if (!grade_binary(OSSwapBigToHostInt32(mkext_data->cputype),
+ OSSwapBigToHostInt32(mkext_data->cpusubtype))) {
IOLog("Error: Extension archive doesn't contain software "
"for this computer's CPU subtype.\n");
LOG_DELAY();
i++) {
if (loaded_kmod) {
- kfree((unsigned int)loaded_kmod, sizeof(kmod_info_t));
+ kfree(loaded_kmod, sizeof(kmod_info_t));
loaded_kmod = 0;
}
} else {
driverPlist = OSDynamicCast(OSDictionary,
OSUnserializeXML(
- (char *)driverPlistDataObject->getBytesNoCopy(),
+ (const char *)driverPlistDataObject->getBytesNoCopy(),
&errorString));
if (!driverPlist) {
IOLog("Error: Couldn't read XML property list "
finish:
- if (loaded_kmod) kfree((unsigned int)loaded_kmod, sizeof(kmod_info_t));
+ if (loaded_kmod) kfree(loaded_kmod, sizeof(kmod_info_t));
if (driverPlistDataObject) {
kmem_free(kernel_map,
(unsigned int)driverPlistDataObject->getBytesNoCopy(),
bool result = true;
OSData * mkextDataObject = 0; // don't release
- MemoryMapFileInfo * mkext_file_info = 0; // don't free
+ const MemoryMapFileInfo * mkext_file_info = 0; // don't free
mkextDataObject = OSDynamicCast(OSData,
propertyDict->getObject(memory_map_name));
goto finish;
}
- mkext_file_info = (MemoryMapFileInfo *)mkextDataObject->getBytesNoCopy();
+ mkext_file_info = (const MemoryMapFileInfo *)mkextDataObject->getBytesNoCopy();
if (!mkext_file_info) {
result = false;
goto finish;
}
- result = extractExtensionsFromArchive(mkext_file_info, extensions);
+ result = extractExtensionsFromArchive(mkext_file_info, false /*physical*/, extensions);
finish:
if (thisDriverPersonalities) {
OSCollectionIterator * pIterator;
- OSString * key;
+ OSString * locakKey;
pIterator = OSCollectionIterator::withCollection(
thisDriverPersonalities);
if (!pIterator) {
LOG_DELAY();
continue;
}
- while ( (key = OSDynamicCast(OSString,
+ while ( (locakKey = OSDynamicCast(OSString,
pIterator->getNextObject())) ) {
OSDictionary * personality = OSDynamicCast(
OSDictionary,
- thisDriverPersonalities->getObject(key));
+ thisDriverPersonalities->getObject(locakKey));
if (personality) {
allDriverPersonalities->setObject(personality);
}
*/
bootLoaderObjects->setObject(mkextDataObject);
- result = extractExtensionsFromArchive(&mkext_file_info, extensions);
+ result = extractExtensionsFromArchive(&mkext_file_info, true /*virtual*/, extensions);
if (!result) {
IOLog("Error: Failed to extract extensions from archive.\n");
LOG_DELAY();
LOG_DELAY();
continue;
}
- UInt32 * prelink;
- prelink = (UInt32 *) data->getBytesNoCopy();
+ const UInt32 * prelink;
+ prelink = (const UInt32 *) data->getBytesNoCopy();
kmod_info_t * kmod_info = (kmod_info_t *) OSReadBigInt32(prelink, 0);
// end of "file" is end of symbol sect
data = OSData::withBytesNoCopy((void *) kmod_info->address,
strlen(BOOTX_MULTIKEXT_PREFIX)) ) {
OSData * bootxDriverDataObject = NULL;
- MemoryMapFileInfo * driverInfo = 0;
+ const MemoryMapFileInfo * driverInfo = 0;
bootxDriverDataObject = OSDynamicCast(OSData,
propertyDict->getObject(keyValue));
if (!bootxDriverDataObject) {
continue;
}
- driverInfo = (MemoryMapFileInfo *)
+ driverInfo = (const MemoryMapFileInfo *)
bootxDriverDataObject->getBytesNoCopy(0,
sizeof(MemoryMapFileInfo));
IODTFreeLoaderInfo((char *)keyValue,
projects / apple / xnu.git / blobdiff