OSX/utilities/src/SecPLWrappers.m

   1 /*
   2  * Copyright (c) 2017 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 #include <TargetConditionals.h>
  25 #include <Foundation/Foundation.h>
  26 #include "SecPLWrappers.h"
  27
  28 #if TARGET_OS_EMBEDDED && !TARGET_OS_BRIDGE
  29 #include <PowerLog/PowerLog.h>
  30
  31 static typeof(PLShouldLogRegisteredEvent) *soft_PLShouldLogRegisteredEvent = NULL;
  32 static typeof(PLLogRegisteredEvent) *soft_PLLogRegisteredEvent = NULL;
  33 static typeof(PLLogTimeSensitiveRegisteredEvent) *soft_PLLogTimeSensitiveRegisteredEvent = NULL;
  34
  35 static bool
  36 setup(void)
  37 {
  38     static dispatch_once_t onceToken;
  39     static CFBundleRef bundle = NULL;
  40     dispatch_once(&onceToken, ^{
  41
  42         CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, CFSTR("/System/Library/PrivateFrameworks/PowerLog.framework"), kCFURLPOSIXPathStyle, true);
  43         if (url == NULL)
  44             return;
  45
  46         bundle = CFBundleCreate(kCFAllocatorDefault, url);
  47         CFRelease(url);
  48         if (bundle == NULL)
  49             return;
  50
  51         soft_PLShouldLogRegisteredEvent = CFBundleGetFunctionPointerForName(bundle, CFSTR("PLShouldLogRegisteredEvent"));
  52         soft_PLLogRegisteredEvent = CFBundleGetFunctionPointerForName(bundle, CFSTR("PLLogRegisteredEvent"));
  53         soft_PLLogTimeSensitiveRegisteredEvent = CFBundleGetFunctionPointerForName(bundle, CFSTR("PLLogTimeSensitiveRegisteredEvent"));
  54
  55         if (soft_PLShouldLogRegisteredEvent == NULL ||
  56             soft_PLLogRegisteredEvent == NULL ||
  57             soft_PLLogTimeSensitiveRegisteredEvent == NULL)
  58         {
  59             CFRelease(bundle);
  60             bundle = NULL;
  61         }
  62     });
  63     return bundle != NULL;
  64 }
  65
  66
  67 #endif
  68
  69 bool SecPLShouldLogRegisteredEvent(NSString *event)
  70 {
  71 #if TARGET_OS_EMBEDDED && !TARGET_OS_BRIDGE
  72     if (setup())
  73         return soft_PLShouldLogRegisteredEvent(PLClientIDSecurity, (__bridge CFStringRef)event);
  74 #endif
  75     return false;
  76 }
  77
  78 void SecPLLogRegisteredEvent(NSString *eventName, NSDictionary *eventDictionary)
  79 {
  80 #if TARGET_OS_EMBEDDED && !TARGET_OS_BRIDGE
  81     if (setup())
  82         soft_PLLogRegisteredEvent(PLClientIDSecurity,
  83                                   (__bridge CFStringRef)eventName,
  84                                   (__bridge CFDictionaryRef)eventDictionary,
  85                                   NULL);
  86 #endif
  87 }
  88
  89 void SecPLLogTimeSensitiveRegisteredEvent(NSString *eventName, NSDictionary *eventDictionary)
  90 {
  91 #if TARGET_OS_EMBEDDED && !TARGET_OS_BRIDGE
  92     if (setup())
  93         soft_PLLogTimeSensitiveRegisteredEvent(PLClientIDSecurity,
  94                                                (__bridge CFStringRef)eventName,
  95                                                (__bridge CFDictionaryRef)eventDictionary,
  96                                                NULL);
  97 #endif
  98 }
  99