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1/*
2 * Copyright (c) 2009, 2010, 2012, 2013, 2015, 2018, 2019 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
25#include <sys/types.h>
26#include <sys/param.h>
27#include <sys/stat.h>
28#include <dlfcn.h>
29#include <SystemConfiguration/CaptiveNetwork.h>
30#include <SystemConfiguration/SCPrivate.h>
31
32#pragma mark -
33#pragma mark CaptiveNetwork.framework APIs (exported through the SystemConfiguration.framework)
34
35const CFStringRef kCNNetworkInfoKeySSIDData = CFSTR("SSIDDATA");
36const CFStringRef kCNNetworkInfoKeySSID = CFSTR("SSID");
37const CFStringRef kCNNetworkInfoKeyBSSID = CFSTR("BSSID");
38
39static void *
40__loadCaptiveNetwork(void) {
41 static void *image = NULL;
42 static dispatch_once_t once;
43
44 dispatch_once(&once, ^{
45 image = _SC_dlopen("/System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork");
46 });
47
48 return image;
49}
50
51Boolean
52CNSetSupportedSSIDs(CFArrayRef ssidArray)
53{
54 static typeof (CNSetSupportedSSIDs) *dyfunc = NULL;
55 if (!dyfunc) {
56 void *image = __loadCaptiveNetwork();
57 if (image) dyfunc = dlsym(image, "__CNSetSupportedSSIDs");
58 }
59 return dyfunc ? dyfunc(ssidArray) : FALSE;
60}
61
62Boolean
63CNMarkPortalOnline(CFStringRef interfaceName)
64{
65 static typeof (CNMarkPortalOnline) *dyfunc = NULL;
66 if (!dyfunc) {
67 void *image = __loadCaptiveNetwork();
68 if (image) dyfunc = dlsym(image, "__CNMarkPortalOnline");
69 }
70 return dyfunc ? dyfunc(interfaceName) : FALSE;
71}
72
73Boolean
74CNMarkPortalOffline(CFStringRef interfaceName)
75{
76 static typeof (CNMarkPortalOffline) *dyfunc = NULL;
77 if (!dyfunc) {
78 void *image = __loadCaptiveNetwork();
79 if (image) dyfunc = dlsym(image, "__CNMarkPortalOffline");
80 }
81 return dyfunc ? dyfunc(interfaceName) : FALSE;
82}
83
84CFArrayRef
85CNCopySupportedInterfaces(void)
86{
87 static typeof (CNCopySupportedInterfaces) *dyfunc = NULL;
88 if (!dyfunc) {
89 void *image = __loadCaptiveNetwork();
90 if (image) dyfunc = dlsym(image, "__CNCopySupportedInterfaces");
91 }
92 return dyfunc ? dyfunc() : NULL;
93}
94
95CFDictionaryRef
96CNCopyCurrentNetworkInfo(CFStringRef interfaceName)
97{
98#if TARGET_OS_IPHONE && !TARGET_OS_IOSMAC
99 static typeof (CNCopyCurrentNetworkInfo) *dyfunc = NULL;
100 if (!dyfunc) {
101 void *image = __loadCaptiveNetwork();
102 if (image) dyfunc = dlsym(image, "__CNCopyCurrentNetworkInfo");
103 }
104 return dyfunc ? dyfunc(interfaceName) : NULL;
105#else // TARGET_OS_IPHONE && !TARGET_OS_IOSMAC
106#pragma unused(interfaceName)
107 return NULL;
108#endif // TARGET_OS_IPHONE && !TARGET_OS_IOSMAC
109}
110