dist/wpa/src/drivers/MobileApple80211.c

   1 #include "includes.h"
   2 #include <dlfcn.h>
   3
   4 #include "common.h"
   5
   6 #include <CoreFoundation/CoreFoundation.h>
   7 #include "MobileApple80211.h"
   8
   9 /*
  10  * Code for dynamically loading Apple80211 functions from Aeropuerto to avoid
  11  * having to link with full Preferences.framework.
  12  */
  13
  14 static void *aeropuerto = NULL;
  15
  16
  17 int _Apple80211Initialized(void)
  18 {
  19         return aeropuerto ? 1 : 0;
  20 }
  21
  22
  23 static int (*__Apple80211Open)(Apple80211Ref *ctx) = NULL;
  24
  25 int Apple80211Open(Apple80211Ref *ctx)
  26 {
  27         return __Apple80211Open(ctx);
  28 }
  29
  30
  31 static int (*__Apple80211Close)(Apple80211Ref ctx) = NULL;
  32
  33 int Apple80211Close(Apple80211Ref ctx)
  34 {
  35         return __Apple80211Close(ctx);
  36 }
  37
  38
  39 static int (*__Apple80211GetIfListCopy)(Apple80211Ref handle, CFArrayRef *list)
  40         = NULL;
  41
  42 int Apple80211GetIfListCopy(Apple80211Ref handle, CFArrayRef *list)
  43 {
  44         return __Apple80211GetIfListCopy(handle, list);
  45 }
  46
  47
  48 static int (*__Apple80211BindToInterface)(Apple80211Ref handle,
  49                                           CFStringRef interface) = NULL;
  50
  51 int Apple80211BindToInterface(Apple80211Ref handle,
  52                               CFStringRef interface)
  53 {
  54         return __Apple80211BindToInterface(handle, interface);
  55 }
  56
  57
  58 static int (*__Apple80211GetInterfaceNameCopy)(Apple80211Ref handle,
  59                                                CFStringRef *name) = NULL;
  60
  61 int Apple80211GetInterfaceNameCopy(Apple80211Ref handle,
  62                                    CFStringRef *name)
  63 {
  64         return __Apple80211GetInterfaceNameCopy(handle, name);
  65 }
  66
  67
  68 static int (*__Apple80211GetInfoCopy)(Apple80211Ref handle,
  69                                       CFDictionaryRef *info) = NULL;
  70
  71 int Apple80211GetInfoCopy(Apple80211Ref handle,
  72                           CFDictionaryRef *info)
  73 {
  74         return __Apple80211GetInfoCopy(handle, info);
  75 }
  76
  77
  78 static int (*__Apple80211GetPower)(Apple80211Ref handle, char *pwr) = NULL;
  79
  80 int Apple80211GetPower(Apple80211Ref handle, char *pwr)
  81 {
  82         return __Apple80211GetPower(handle, pwr);
  83 }
  84
  85
  86 static int (*__Apple80211SetPower)(Apple80211Ref handle, char pwr) = NULL;
  87
  88 int Apple80211SetPower(Apple80211Ref handle, char pwr)
  89 {
  90         return __Apple80211SetPower(handle, pwr);
  91 }
  92
  93
  94 static int (*__Apple80211Scan)(Apple80211Ref handle, CFArrayRef *list,
  95                                CFDictionaryRef parameters) = NULL;
  96
  97 int Apple80211Scan(Apple80211Ref handle, CFArrayRef *list,
  98                    CFDictionaryRef parameters)
  99 {
 100         return __Apple80211Scan(handle, list, parameters);
 101 }
 102
 103
 104 static int (*__Apple80211Associate)(Apple80211Ref handle, CFDictionaryRef bss,
 105                                     CFStringRef password) = NULL;
 106
 107 int Apple80211Associate(Apple80211Ref handle, CFDictionaryRef bss,
 108                         CFStringRef password)
 109 {
 110         return __Apple80211Associate(handle, bss, password);
 111 }
 112
 113
 114 static int (*__Apple80211AssociateAndCopyInfo)(Apple80211Ref handle,
 115                                                CFDictionaryRef bss,
 116                                                CFStringRef password,
 117                                                CFDictionaryRef *info) =
 118         NULL;
 119
 120 int Apple80211AssociateAndCopyInfo(Apple80211Ref handle, CFDictionaryRef bss,
 121                                    CFStringRef password, CFDictionaryRef *info)
 122 {
 123         return __Apple80211AssociateAndCopyInfo(handle, bss, password, info);
 124 }
 125
 126
 127 static int (*__Apple80211CopyValue)(Apple80211Ref handle, int field,
 128                                     CFDictionaryRef arg2, void *value) = NULL;
 129
 130 int Apple80211CopyValue(Apple80211Ref handle, int field, CFDictionaryRef arg2,
 131                         void *value)
 132 {
 133         return __Apple80211CopyValue(handle, field, arg2, value);
 134 }
 135
 136
 137 #define DLSYM(s) \
 138 do { \
 139         __ ## s = dlsym(aeropuerto, #s); \
 140         if (__ ## s == NULL) { \
 141                 wpa_printf(MSG_ERROR, "MobileApple80211: Could not resolve " \
 142                            "symbol '" #s "' (%s)", dlerror()); \
 143                 err = 1; \
 144         } \
 145 } while (0)
 146
 147
 148 __attribute__ ((constructor))
 149 void _Apple80211_constructor(void)
 150 {
 151         const char *fname = "/System/Library/SystemConfiguration/"
 152                 "Aeropuerto.bundle/Aeropuerto";
 153         int err = 0;
 154
 155         aeropuerto = dlopen(fname, RTLD_LAZY);
 156         if (!aeropuerto) {
 157                 wpa_printf(MSG_ERROR, "MobileApple80211: Failed to open %s "
 158                            "for symbols", fname);
 159                 return;
 160         }
 161
 162         DLSYM(Apple80211Open);
 163         DLSYM(Apple80211Close);
 164         DLSYM(Apple80211GetIfListCopy);
 165         DLSYM(Apple80211BindToInterface);
 166         DLSYM(Apple80211GetInterfaceNameCopy);
 167         DLSYM(Apple80211GetInfoCopy);
 168         DLSYM(Apple80211GetPower);
 169         DLSYM(Apple80211SetPower);
 170         DLSYM(Apple80211Scan);
 171         DLSYM(Apple80211Associate);
 172         DLSYM(Apple80211AssociateAndCopyInfo);
 173         DLSYM(Apple80211CopyValue);
 174
 175         if (err) {
 176                 dlclose(aeropuerto);
 177                 aeropuerto = NULL;
 178         }
 179 }
 180
 181
 182 __attribute__ ((destructor))
 183 void _Apple80211_destructor(void)
 184 {
 185         if (aeropuerto) {
 186                 dlclose(aeropuerto);
 187                 aeropuerto = NULL;
 188         }
 189 }