SystemConfiguration.fproj/SCNetworkSignature.h

   1 /*
   2  * Copyright (c) 2006 Apple Computer, 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 #ifndef _SCNETWORKSIGNATURE_H
  25 #define _SCNETWORKSIGNATURE_H
  26
  27 #include <AvailabilityMacros.h>
  28 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
  29
  30 #include <CoreFoundation/CFString.h>
  31 #include <CoreFoundation/CFArray.h>
  32 #include <netinet/in.h>
  33
  34 /*!
  35         @header SCNetworkSignature
  36         @discussion The SCNetworkSignature API provides access to the
  37                 network identification information.  Each routable network
  38                 has an associated signature that is assigned a unique
  39                 identifier.  The unique identifier allows an application
  40                 to associate settings with a particular network
  41                 or set of networks.
  42  */
  43
  44 /*!
  45         @const kSCNetworkSignatureActiveChangedNotifyName
  46         @discussion The name to use with the notify(3) API's to monitor
  47                 when the list of active signatures changes.
  48  */
  49 extern const char * kSCNetworkSignatureActiveChangedNotifyName;
  50
  51 /*!
  52         @function SCNetworkSignatureCopyActiveIdentifiers
  53         @discussion Find all currently active networks and return a list of
  54                 (string) identifiers, one for each network.
  55         @param allocator The CFAllocator that should be used to allocate
  56                 memory for the local dynamic store object.
  57                 This parameter may be NULL in which case the current
  58                 default CFAllocator is used. If this reference is not
  59                 a valid CFAllocator, the behavior is undefined.
  60         @result A CFArrayRef containing a list of (string) identifiers,
  61                 NULL if no networks are currently active.
  62  */
  63 CFArrayRef /* of CFStringRef's */
  64 SCNetworkSignatureCopyActiveIdentifiers(CFAllocatorRef alloc);
  65
  66 /*!
  67         @function SCNetworkSignatureCopyActiveIdentifierForAddress
  68         @discussion Find the one active network associated with the specified
  69                 address and return the unique (string) identifier that
  70                 represents it.
  71         @param allocator The CFAllocator that should be used to allocate
  72                 memory for the local dynamic store object.
  73                 This parameter may be NULL in which case the current
  74                 default CFAllocator is used. If this reference is not
  75                 a valid CFAllocator, the behavior is undefined.
  76         @param addr The address of interest.  Note: currently only AF_INET
  77                 0.0.0.0 is supported, passing anything else always returns
  78                 NULL.
  79         @result The unique (string) identifier associated with the address,
  80                 NULL if no network is known.
  81  */
  82 CFStringRef
  83 SCNetworkSignatureCopyActiveIdentifierForAddress(CFAllocatorRef alloc,
  84                                                  const struct sockaddr * addr);
  85
  86 #endif  /* MAC_OS_X_VERSION_MAX_ALLOWED >= 1050 */
  87
  88 #endif  /* _SCNETWORKSIGNATURE_H */