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--- xnu/xnu-1228/libsa/kext.cpp
+++ xnu/xnu-792.13.8/libsa/kext.cpp
@@ -1,38 +1,32 @@
/*
- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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. 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
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ * 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. 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
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
* limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
*/
-
-/*
- * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
- * support for mandatory and extensible security protections. This notice
- * is included in support of clause 2.2 (b) of the Apple Public License,
- * Version 2.0.
- */
-
#include <libkern/c++/OSContainers.h>
#include <IOKit/IOCatalogue.h>
#include <IOKit/IOLib.h>
@@ -74,13 +68,9 @@
extern kern_return_t kmod_retain(kmod_t id);
extern kern_return_t kmod_release(kmod_t id);
-extern Boolean kmod_load_request(const char * moduleName, Boolean make_request);
+extern void flush_dcache(vm_offset_t addr, unsigned cnt, int phys);
+extern void invalidate_icache(vm_offset_t addr, unsigned cnt, int phys);
};
-
-extern kmod_args_t
-get_module_data(OSDictionary * kextPlist, mach_msg_type_number_t * datalen);
-
-extern struct mac_module_data *osdict_encode(OSDictionary *dict);
#define DEBUG
#ifdef DEBUG
@@ -92,11 +82,6 @@
#define VTYELLOW
#define VTRESET
#endif /* DEBUG */
-
-
-#define KERNEL_PREFIX "com.apple.kernel"
-#define KPI_PREFIX "com.apple.kpi"
-
/*********************************************************************
*
@@ -167,7 +152,7 @@
*caller_owns_code = false;
*code = (unsigned char *)kld_file_getaddr(bundleid,
- (unsigned long *)&code_size_local);
+ (long *)&code_size_local);
if (*code) {
if (code_size) {
*code_size = code_size_local;
@@ -289,7 +274,7 @@
OSData * compressedCode = 0; // don't release
if (is_kernel) {
- *is_kernel = 0;
+ *is_kernel = false;
}
/* Get the dictionary of startup extensions.
@@ -330,7 +315,7 @@
extPlist->getObject("OSKernelResource"));
if (isKernelResourceObj && isKernelResourceObj->isTrue()) {
if (is_kernel) {
- *is_kernel = 1;
+ *is_kernel = true;
}
}
@@ -338,8 +323,6 @@
compressedCode = OSDynamicCast(OSData,
extDict->getObject("compressedCode"));
- /* A kernel component that has code represents a KPI.
- */
if ((driverCode || compressedCode) && is_kernel && *is_kernel) {
*is_kernel = 2;
}
@@ -364,8 +347,6 @@
{
bool result = true;
bool hasDirectKernelDependency = false;
- bool hasKernelStyleDependency = false;
- bool hasKPIStyleDependency = false;
OSString * kextName = 0; // don't release
OSDictionary * libraries = 0; // don't release
OSCollectionIterator * keyIterator = 0; // must release
@@ -415,7 +396,7 @@
if (!kextIsDependency(libraryName->getCStringNoCopy(),
&is_kernel_component)) {
- is_kernel_component = 0;
+ is_kernel_component = false;
}
if (!skipKernelDependencies || !is_kernel_component) {
@@ -425,25 +406,8 @@
if (!hasDirectKernelDependency && is_kernel_component) {
hasDirectKernelDependency = true;
}
-
- /* We already know from the kextIsDependency() call whether
- * the dependency *itself* is kernel- or KPI-style, but since
- * the declaration semantic is by bundle ID, we check that here
- * instead.
- */
- if (strncmp(libraryName->getCStringNoCopy(),
- KERNEL_PREFIX, strlen(KERNEL_PREFIX)) == 0) {
-
- hasKernelStyleDependency = true;
-
- } else if (strncmp(libraryName->getCStringNoCopy(),
- KPI_PREFIX, strlen(KPI_PREFIX)) == 0) {
-
- hasKPIStyleDependency = true;
- }
- }
- }
-
+ }
+ }
if (!hasDirectKernelDependency) {
const OSSymbol * kernelName = 0;
@@ -459,12 +423,7 @@
dependencyList->setObject(kernelName);
kernelName->release();
- IOLog("Extension \"%s\" has no explicit kernel dependency; using version 6.0.\n",
- kextName->getCStringNoCopy());
-
- } else if (hasKernelStyleDependency && hasKPIStyleDependency) {
- IOLog("Extension \"%s\" has immediate dependencies "
- "on both com.apple.kernel and com.apple.kpi components; use only one style.\n",
+ IOLog("Extension \"%s\" has no kernel dependency.\n",
kextName->getCStringNoCopy());
}
@@ -517,16 +476,11 @@
unsigned long code_length = 0;
bool code_is_kmem = false;
char * kmod_vers = 0; // from plist, don't free
- char is_kernel_component = 0;
+ char is_kernel_component = false;
dgraph_entry_t * dgraph_entry = 0; // don't free
dgraph_entry_t * dgraph_dependency = 0; // don't free
bool kext_is_dependency = true;
-#if CONFIG_MACF_KEXT
- kmod_args_t user_data = 0;
- mach_msg_type_number_t user_data_length;
-#endif
-
/*****
* Set up the root kmod.
*/
@@ -549,16 +503,8 @@
goto finish;
}
-#if CONFIG_MACF_KEXT
- // check kext for module data in the plist
- user_data = get_module_data(kextPlist, &user_data_length);
-#endif
-
dgraph_entry = dgraph_add_dependent(dgraph, kmod_name,
code, code_length, code_is_kmem,
-#if CONFIG_MACF_KEXT
- user_data, user_data_length,
-#endif
kmod_name, kmod_vers,
0 /* load_address not yet known */, is_kernel_component);
if (!dgraph_entry) {
@@ -678,16 +624,8 @@
goto finish;
}
-#if CONFIG_MACF_KEXT
- // check kext for module data in the plist
- // XXX - is this really needed?
- user_data = get_module_data(kextPlist, &user_data_length);
-#endif
dgraph_dependency = dgraph_add_dependency(dgraph, dgraph_entry,
library_name, code, code_length, code_is_kmem,
-#if CONFIG_MACF_KEXT
- user_data, user_data_length,
-#endif
library_name, kmod_vers,
0 /* load_address not yet known */, is_kernel_component);
@@ -731,12 +669,6 @@
kmem_free(kernel_map, (unsigned int)code, code_length);
}
if (dependencyList) dependencyList->release();
-
-#if CONFIG_MACF_KEXT
- if (user_data && !result) {
- vm_map_copy_discard((vm_map_copy_t)user_data);
- }
-#endif
return result;
}
@@ -819,71 +751,3 @@
}
return result;
}
-
-#define COM_APPLE "com.apple."
-
-__private_extern__ void
-load_security_extensions (void)
-{
- OSDictionary * extensionsDict = NULL; // don't release
- OSCollectionIterator* keyIterator = NULL; // must release
- OSString * key = NULL; // don't release
- OSDictionary * extDict; // don't release
- OSDictionary * extPlist; // don't release
- OSBoolean * isSec = 0; // don't release
- Boolean ret;
-
- extensionsDict = getStartupExtensions();
- if (!extensionsDict) {
- IOLog("startup extensions dictionary is missing\n");
- LOG_DELAY(1);
- return;
- }
-
- keyIterator = OSCollectionIterator::withCollection(extensionsDict);
- if (!keyIterator) {
- IOLog("Error: Failed to allocate iterator for extensions.\n");
- LOG_DELAY(1);
- return;
- }
-
- while ((key = OSDynamicCast(OSString, keyIterator->getNextObject()))) {
-
- const char * bundle_id = key->getCStringNoCopy();
-
- /* Skip extensions whose bundle IDs don't start with "com.apple.".
- */
- if (!bundle_id || (strncmp(bundle_id, COM_APPLE, strlen(COM_APPLE)) != 0)) {
- continue;
- }
-
- extDict = OSDynamicCast(OSDictionary, extensionsDict->getObject(key));
- if (!extDict) {
- IOLog("extension \"%s\" cannot be found\n",
- key->getCStringNoCopy());
- continue;
- }
-
- extPlist = OSDynamicCast(OSDictionary, extDict->getObject("plist"));
- if (!extPlist) {
- IOLog("extension \"%s\" has no info dictionary\n",
- key->getCStringNoCopy());
- continue;
- }
-
- isSec = OSDynamicCast(OSBoolean,
- extPlist->getObject("AppleSecurityExtension"));
- if (isSec && isSec->isTrue()) {
- printf("Loading security extension %s\n", key->getCStringNoCopy());
- ret = kmod_load_request(key->getCStringNoCopy(), false);
- if (!ret) {
- load_kernel_extension((char *)key->getCStringNoCopy());
- }
- }
- }
-
- if (keyIterator)
- keyIterator->release();
-
- return;
-}