mDNSShared/dns_sd_private.h

   1 /* -*- Mode: C; tab-width: 4 -*-
   2  *
   3  * Copyright (c) 2015-2019 Apple Inc. All rights reserved.
   4  */
   5
   6 #ifndef _DNS_SD_PRIVATE_H
   7 #define _DNS_SD_PRIVATE_H
   8
   9 #include <dns_sd.h>
  10
  11 // Private flags (kDNSServiceFlagsPrivateOne, kDNSServiceFlagsPrivateTwo, kDNSServiceFlagsPrivateThree, kDNSServiceFlagsPrivateFour, kDNSServiceFlagsPrivateFive) from dns_sd.h
  12 enum
  13 {
  14     kDNSServiceFlagsDenyConstrained        = 0x2000,
  15     /*
  16      * This flag is meaningful only for Unicast DNS queries. When set, the daemon will restrict
  17      * DNS resolutions on interfaces defined as constrained for that request.
  18      */
  19
  20     kDNSServiceFlagsDenyCellular           = 0x8000000,
  21     /*
  22      * This flag is meaningful only for Unicast DNS queries. When set, the daemon will restrict
  23      * DNS resolutions on the cellular interface for that request.
  24      */
  25     kDNSServiceFlagsServiceIndex           = 0x10000000,
  26     /*
  27      * This flag is meaningful only for DNSServiceGetAddrInfo() for Unicast DNS queries.
  28      * When set, DNSServiceGetAddrInfo() will interpret the "interfaceIndex" argument of the call
  29      * as the "serviceIndex".
  30      */
  31
  32     kDNSServiceFlagsDenyExpensive          = 0x20000000,
  33     /*
  34      * This flag is meaningful only for Unicast DNS queries. When set, the daemon will restrict
  35      * DNS resolutions on interfaces defined as expensive for that request.
  36      */
  37
  38     kDNSServiceFlagsPathEvaluationDone     = 0x40000000
  39     /*
  40      * This flag is meaningful for only Unicast DNS queries.
  41      * When set, it indicates that Network PathEvaluation has already been performed.
  42      */
  43 };
  44
  45 #if !defined(DNSSD_NO_CREATE_DELEGATE_CONNECTION) || !DNSSD_NO_CREATE_DELEGATE_CONNECTION
  46 /* DNSServiceCreateDelegateConnection()
  47  *
  48  * Parameters:
  49  *
  50  * sdRef:           A pointer to an uninitialized DNSServiceRef. Deallocating
  51  *                  the reference (via DNSServiceRefDeallocate()) severs the
  52  *                  connection and deregisters all records registered on this connection.
  53  *
  54  * pid :            Process ID of the delegate
  55  *
  56  * uuid:            UUID of the delegate
  57  *
  58  *                  Note that only one of the two arguments (pid or uuid) can be specified. If pid
  59  *                  is zero, uuid will be assumed to be a valid value; otherwise pid will be used.
  60  *
  61  * return value:    Returns kDNSServiceErr_NoError on success, otherwise returns
  62  *                  an error code indicating the specific failure that occurred (in which
  63  *                  case the DNSServiceRef is not initialized). kDNSServiceErr_NotAuth is
  64  *                  returned to indicate that the calling process does not have entitlements
  65  *                  to use this API.
  66  */
  67 DNSSD_EXPORT
  68 DNSServiceErrorType DNSSD_API DNSServiceCreateDelegateConnection(DNSServiceRef *sdRef, int32_t pid, uuid_t uuid);
  69 #endif
  70
  71 // Map the source port of the local UDP socket that was opened for sending the DNS query
  72 // to the process ID of the application that triggered the DNS resolution.
  73 //
  74 /* DNSServiceGetPID() Parameters:
  75  *
  76  * srcport:         Source port (in network byte order) of the UDP socket that was created by
  77  *                  the daemon to send the DNS query on the wire.
  78  *
  79  * pid:             Process ID of the application that started the name resolution which triggered
  80  *                  the daemon to send the query on the wire. The value can be -1 if the srcport
  81  *                  cannot be mapped.
  82  *
  83  * return value:    Returns kDNSServiceErr_NoError on success, or kDNSServiceErr_ServiceNotRunning
  84  *                  if the daemon is not running. The value of the pid is undefined if the return
  85  *                  value has error.
  86  */
  87 DNSSD_EXPORT
  88 DNSServiceErrorType DNSSD_API DNSServiceGetPID
  89 (
  90     uint16_t srcport,
  91     int32_t *pid
  92 );
  93
  94 DNSSD_EXPORT
  95 DNSServiceErrorType DNSSD_API DNSServiceSetDefaultDomainForUser(DNSServiceFlags flags, const char *domain);
  96
  97 #define kDNSServiceCompPrivateDNS   "PrivateDNS"
  98 #define kDNSServiceCompMulticastDNS "MulticastDNS"
  99
 100 #endif