Plugins/IPMonitor/agent-monitor.m

   1 /*
   2  * Copyright (c) 2015-2018 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 #import "controller.h"
  25
  26 static Boolean
  27 haveNetworkExtensionFramework()
  28 {
  29         Boolean haveFramework;
  30
  31         haveFramework = ([NEPolicy class] != nil);
  32         return haveFramework;
  33 }
  34
  35 void
  36 process_AgentMonitor(void)
  37 {
  38         if (!haveNetworkExtensionFramework()) {
  39                 return;
  40         }
  41
  42         SC_log(LOG_DEBUG, "Triggering AgentMonitor");
  43         @autoreleasepool {
  44                 AgentController *controller = [AgentController sharedController];
  45                 if (controller == nil) {
  46                         SC_log(LOG_ERR, "AgentController could not be initialized");
  47                         return;
  48                 }
  49
  50                 dispatch_sync(controller.controllerQueue, ^{
  51                         [[AgentController sharedController] processDNSChanges];
  52                         [[AgentController sharedController] processProxyChanges];
  53                 });
  54         }
  55
  56         return;
  57 }
  58
  59 void
  60 process_AgentMonitor_DNS(void)
  61 {
  62         if (!haveNetworkExtensionFramework()) {
  63                 return;
  64         }
  65
  66         SC_log(LOG_DEBUG, "Triggering AgentMonitor for DNS");
  67         @autoreleasepool {
  68                 AgentController *controller = [AgentController sharedController];
  69                 if (controller == nil) {
  70                         SC_log(LOG_ERR, "AgentController could not be initialized");
  71                         return;
  72                 }
  73
  74                 dispatch_sync(controller.controllerQueue, ^{
  75                         [[AgentController sharedController] processDNSChanges];
  76                 });
  77         }
  78
  79         return;
  80 }
  81
  82 void
  83 process_AgentMonitor_Proxy(void)
  84 {
  85         if (!haveNetworkExtensionFramework()) {
  86                 return;
  87         }
  88
  89         SC_log(LOG_DEBUG, "Triggering AgentMonitor for Proxy");
  90         @autoreleasepool {
  91                 AgentController *controller = [AgentController sharedController];
  92                 if (controller == nil) {
  93                         SC_log(LOG_ERR, "AgentController could not be initialized");
  94                         return;
  95                 }
  96
  97                 dispatch_sync(controller.controllerQueue, ^{
  98                         [[AgentController sharedController] processProxyChanges];
  99                 });
 100         }
 101
 102         return;
 103 }
 104
 105 const void *
 106 copy_proxy_information_for_agent_uuid(uuid_t uuid, uint64_t *length)
 107 {
 108         __block const void *buffer = NULL;
 109
 110         if (!haveNetworkExtensionFramework()) {
 111                 return NULL;
 112         }
 113
 114         @autoreleasepool {
 115                 AgentController *controller = [AgentController sharedController];
 116                 if (controller == nil) {
 117                         SC_log(LOG_ERR, "AgentController could not be initialized");
 118                         return NULL;
 119                 }
 120
 121                 dispatch_sync(controller.controllerQueue, ^{
 122                         buffer = [[AgentController sharedController] copyProxyAgentData:uuid
 123                                                                                  length:length];
 124                 });
 125         }
 126
 127         return buffer;
 128 }
 129
 130 const void *
 131 copy_dns_information_for_agent_uuid(uuid_t uuid, uint64_t *length)
 132 {
 133         __block const void *buffer = NULL;
 134
 135         if (!haveNetworkExtensionFramework()) {
 136                 return NULL;
 137         }
 138
 139         @autoreleasepool {
 140                 AgentController *controller = [AgentController sharedController];
 141                 if (controller == nil) {
 142                         SC_log(LOG_ERR, "AgentController could not be initialized");
 143                         return NULL;
 144                 }
 145
 146                 dispatch_sync(controller.controllerQueue, ^{
 147                         buffer = [[AgentController sharedController] copyDNSAgentData:uuid
 148                                                                                length:length];
 149                 });
 150         }
 151
 152         return buffer;
 153 }