wpa_supplicant/binder/binder_manager.cpp

   1 /*
   2  * binder interface for wpa_supplicant daemon
   3  * Copyright (c) 2004-2016, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2004-2016, Roshan Pius <rpius@google.com>
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #include <binder/IServiceManager.h>
  11
  12 #include "binder_constants.h"
  13 #include "binder_manager.h"
  14
  15 extern "C" {
  16 #include "utils/common.h"
  17 #include "utils/includes.h"
  18 }
  19
  20 namespace wpa_supplicant_binder {
  21
  22 BinderManager *BinderManager::instance_ = NULL;
  23
  24 BinderManager *BinderManager::getInstance()
  25 {
  26         if (!instance_)
  27                 instance_ = new BinderManager();
  28         return instance_;
  29 }
  30
  31 void BinderManager::destroyInstance()
  32 {
  33         if (instance_)
  34                 delete instance_;
  35         instance_ = NULL;
  36 }
  37
  38 int BinderManager::registerBinderService(struct wpa_global *global)
  39 {
  40         /* Create the main binder service object and register with
  41          * system service manager. */
  42         supplicant_object_ = new Supplicant(global);
  43         android::String16 service_name(binder_constants::kServiceName);
  44         android::defaultServiceManager()->addService(
  45             service_name, android::IInterface::asBinder(supplicant_object_));
  46         return 0;
  47 }
  48
  49 int BinderManager::registerInterface(struct wpa_supplicant *wpa_s)
  50 {
  51         if (!wpa_s)
  52                 return 1;
  53
  54         /* Using the corresponding wpa_supplicant pointer as key to our
  55          * object map. */
  56         const void *iface_key = wpa_s;
  57
  58         /* Return failure if we already have an object for that iface_key. */
  59         if (iface_object_map_.find(iface_key) != iface_object_map_.end())
  60                 return 1;
  61
  62         iface_object_map_[iface_key] = new Iface(wpa_s);
  63         if (!iface_object_map_[iface_key].get())
  64                 return 1;
  65
  66         wpa_s->binder_object_key = iface_key;
  67
  68         return 0;
  69 }
  70
  71 int BinderManager::unregisterInterface(struct wpa_supplicant *wpa_s)
  72 {
  73         if (!wpa_s || !wpa_s->binder_object_key)
  74                 return 1;
  75
  76         const void *iface_key = wpa_s;
  77         if (iface_object_map_.find(iface_key) == iface_object_map_.end())
  78                 return 1;
  79
  80         /* Delete the corresponding iface object from our map. */
  81         iface_object_map_.erase(iface_key);
  82         wpa_s->binder_object_key = NULL;
  83         return 0;
  84 }
  85
  86 int BinderManager::getIfaceBinderObjectByKey(
  87     const void *iface_object_key,
  88     android::sp<fi::w1::wpa_supplicant::IIface> *iface_object)
  89 {
  90         if (!iface_object_key || !iface_object)
  91                 return 1;
  92
  93         if (iface_object_map_.find(iface_object_key) == iface_object_map_.end())
  94                 return 1;
  95
  96         *iface_object = iface_object_map_[iface_object_key];
  97         return 0;
  98 }
  99
 100 } /* namespace wpa_supplicant_binder */