mDNSMacOSX/ApplePlatformFeatures.h

   1 /*
   2  * Copyright (c) 2018-2019 Apple Inc. All rights reserved.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #ifndef __ApplePlatformFeatures_h
  18 #define __ApplePlatformFeatures_h
  19
  20 #include <TargetConditionals.h>
  21
  22 // Feature: Bonjour-On-Demand
  23 // Radar:   <rdar://problem/23523784>
  24 // Enabled: Yes.
  25
  26 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_BONJOUR_ON_DEMAND)
  27     #define MDNSRESPONDER_SUPPORTS_APPLE_BONJOUR_ON_DEMAND          1
  28 #endif
  29
  30 // Feature: Cache memory limit
  31 // Radar:   <rdar://problem/15629764>
  32 // Enabled: Yes, but only for device OSes, such as iOS, tvOS, and watchOS, i.e., when TARGET_OS_IPHONE is 1.
  33
  34 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_CACHE_MEM_LIMIT)
  35     #if !defined(TARGET_OS_IPHONE)
  36         #error "Expected TARGET_OS_IPHONE to be defined."
  37     #endif
  38     #if TARGET_OS_IPHONE
  39         #define MDNSRESPONDER_SUPPORTS_APPLE_CACHE_MEM_LIMIT        1
  40     #else
  41         #define MDNSRESPONDER_SUPPORTS_APPLE_CACHE_MEM_LIMIT        0
  42     #endif
  43 #endif
  44
  45 // Feature: D2D
  46 // Radar:   <rdar://problem/28062515>
  47 // Enabled: Yes.
  48
  49 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_D2D)
  50     #define MDNSRESPONDER_SUPPORTS_APPLE_D2D                        1
  51 #endif
  52
  53 // Feature: DNS64 IPv6 synthesis.
  54 // Radar:   <rdar://problem/32297396>
  55 // Enabled: Yes, but only for iOS and macOS, which support the DNS proxy network extension.
  56
  57 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_DNS64)
  58     #if (!defined(TARGET_OS_IOS) || !defined(TARGET_OS_OSX))
  59         #error "Expected TARGET_OS_IOS and TARGET_OS_OSX to be defined."
  60     #endif
  61     #if (TARGET_OS_IOS || TARGET_OS_OSX)
  62         #define MDNSRESPONDER_SUPPORTS_APPLE_DNS64                  1
  63     #else
  64         #define MDNSRESPONDER_SUPPORTS_APPLE_DNS64                  0
  65     #endif
  66 #endif
  67
  68 // Feature: DNS-SD XPC service
  69 // Radar:   <rdar://problem/43866363>
  70 // Enabled: Yes.
  71
  72 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_DNSSD_XPC_SERVICE)
  73     #define MDNSRESPONDER_SUPPORTS_APPLE_DNSSD_XPC_SERVICE          1
  74 #endif
  75
  76 // Feature: Ignore /etc/hosts file on customer builds.
  77 // Radar:   <rdar://problem/34745220>
  78 // Enabled: Yes, except for macOS.
  79
  80 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_IGNORE_HOSTS_FILE)
  81     #if !defined(TARGET_OS_OSX)
  82         #error "Expected TARGET_OS_OSX to be defined."
  83     #endif
  84     #if !TARGET_OS_OSX
  85         #define MDNSRESPONDER_SUPPORTS_APPLE_IGNORE_HOSTS_FILE      1
  86     #else
  87         #define MDNSRESPONDER_SUPPORTS_APPLE_IGNORE_HOSTS_FILE      0
  88     #endif
  89 #endif
  90
  91 // Feature: AWD metrics collection
  92 // Radar:   <rdar://problem/24146300>
  93 // Enabled: Yes, but for iOS only.
  94
  95 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_METRICS)
  96     #if !defined(TARGET_OS_IOS)
  97         #error "Expected TARGET_OS_IOS to be defined."
  98     #endif
  99     #if TARGET_OS_IOS
 100         #define MDNSRESPONDER_SUPPORTS_APPLE_METRICS                1
 101     #else
 102         #define MDNSRESPONDER_SUPPORTS_APPLE_METRICS                0
 103     #endif
 104 #endif
 105
 106 // Feature: No system wake for network access.
 107 // Radar:   <rdar://problem/28079659&55038229>
 108 // Enabled: Yes, but only for iOS and watchOS, which shouldn't act as sleep-proxy clients.
 109
 110 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_NO_WAKE_FOR_NET_ACCESS)
 111     #if (!defined(TARGET_OS_IOS) || !defined(TARGET_OS_WATCH))
 112         #error "Expected TARGET_OS_IOS and TARGET_OS_WATCH to be defined."
 113     #endif
 114     #if (TARGET_OS_IOS || TARGET_OS_WATCH)
 115         #define MDNSRESPONDER_SUPPORTS_APPLE_NO_WAKE_FOR_NET_ACCESS 1
 116     #else
 117         #define MDNSRESPONDER_SUPPORTS_APPLE_NO_WAKE_FOR_NET_ACCESS 0
 118     #endif
 119 #endif
 120
 121 // Feature: Support for having finer granularity of log redaction, by using os_log based-log routine.
 122 // Radar:   <rdar://problem/42814956>
 123 // Enabled: Yes.
 124
 125 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_OS_LOG)
 126     #define MDNSRESPONDER_SUPPORTS_APPLE_OS_LOG                     1
 127 #endif
 128
 129 // Feature: Preallocate mDNSResponder's cache memory. For testing purposes only.
 130 // Radar:   <rdar://problem/29545890>
 131 // Enabled: No.
 132
 133 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_PREALLOCATED_CACHE)
 134     #define MDNSRESPONDER_SUPPORTS_APPLE_PREALLOCATED_CACHE         0
 135 #endif
 136
 137 // Feature: Randomized AWDL Hostname
 138 // Radar:   <rdar://problem/47525004>
 139 // Enabled: Yes.
 140
 141 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_RANDOM_AWDL_HOSTNAME)
 142     #define MDNSRESPONDER_SUPPORTS_APPLE_RANDOM_AWDL_HOSTNAME       1
 143 #endif
 144
 145 // Feature: Reachability trigger
 146 // Radar:   <rdar://problem/11374446>
 147 // Enabled: Yes.
 148
 149 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_REACHABILITY_TRIGGER)
 150     #define MDNSRESPONDER_SUPPORTS_APPLE_REACHABILITY_TRIGGER       1
 151 #endif
 152
 153 // Feature: "SlowActivation" processing for flapping interfaces.
 154 //          Disabled to address stale Bonjour record issues during flapping network interface transitions.
 155 // Radar:   <rdar://problem/44694746>
 156 // Enabled: No.
 157
 158 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_SLOW_ACTIVATION)
 159     #define MDNSRESPONDER_SUPPORTS_APPLE_SLOW_ACTIVATION            0
 160 #endif
 161
 162 // Feature: Suspicious Reply Defense
 163 // Radar:   <rdar://problem/50050767>
 164 // Enabled: Yes.
 165
 166 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_SUSPICIOUS_REPLY_DEFENSE)
 167     #define MDNSRESPONDER_SUPPORTS_APPLE_SUSPICIOUS_REPLY_DEFENSE   1
 168 #endif
 169
 170 // Feature: Symptoms Reporting
 171 // Radar:   <rdar://problem/20194922>
 172 // Enabled: Yes.
 173
 174 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_SYMPTOMS)
 175     #define MDNSRESPONDER_SUPPORTS_APPLE_SYMPTOMS                   1
 176 #endif
 177
 178 // Feature: Support for performing dot-local queries via mDNS and DNS in parallel.
 179 // Radar:   <rdar://problem/4786302>
 180 // Enabled: Yes.
 181
 182 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_UNICAST_DOTLOCAL)
 183     #define MDNSRESPONDER_SUPPORTS_APPLE_UNICAST_DOTLOCAL           1
 184 #endif
 185
 186 // Feature: Allow browses and registrations over interfaces that aren't ready yet.
 187 // Radar:   <rdar://problem/20181903>
 188 // Enabled: Yes.
 189
 190 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_UNREADY_INTERFACES)
 191     #define MDNSRESPONDER_SUPPORTS_APPLE_UNREADY_INTERFACES         1
 192 #endif
 193
 194 // Feature: Support for Web Content Filter
 195 // Radar:   <rdar://problem/7409981>
 196 // Enabled: Yes, if SDK has <WebFilterDNS/WebFilterDNS.h>.
 197
 198 #if !defined(MDNSRESPONDER_SUPPORTS_APPLE_WEB_CONTENT_FILTER)
 199     #if __has_include(<WebFilterDNS/WebFilterDNS.h>)
 200         #define MDNSRESPONDER_SUPPORTS_APPLE_WEB_CONTENT_FILTER     1
 201     #else
 202         #define MDNSRESPONDER_SUPPORTS_APPLE_WEB_CONTENT_FILTER     0
 203     #endif
 204 #endif
 205
 206 #endif  // __ApplePlatformFeatures_h