sta_iface.cpp revision 0470cc8ceeb1a152594d90ce65cb13b6b907751b
1e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt/* 2e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt * binder interface for wpa_supplicant daemon 3e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt * Copyright (c) 2004-2016, Jouni Malinen <j@w1.fi> 4e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt * Copyright (c) 2004-2016, Roshan Pius <rpius@google.com> 5e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt * 6e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt * This software may be distributed under the terms of the BSD license. 7e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt * See README for more details. 8e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt */ 9e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt 10d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius#include "binder_manager.h" 11e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt#include "iface.h" 12e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt 13e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidtnamespace wpa_supplicant_binder { 14e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt 1554e763ada0bed9bf2c48415e82c5f04db23a3330Roshan PiusIface::Iface(struct wpa_global *wpa_global, const char ifname[]) 1654e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius : wpa_global_(wpa_global), ifname_(ifname) 1754e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius{ 1854e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius} 19e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt 2054e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Piusandroid::binder::Status Iface::GetName(std::string *iface_name_out) 2154e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius{ 2254e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius // We could directly return the name we hold, but let's verify 2354e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius // if the underlying iface still exists. 2454e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 2554e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius if (!wpa_s) { 2654e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius return android::binder::Status::fromServiceSpecificError( 27d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius ERROR_IFACE_INVALID, 2854e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius "wpa_supplicant does not control this interface."); 2954e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius } 3054e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius 3154e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius *iface_name_out = ifname_; 3254e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius return android::binder::Status::ok(); 3354e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius} 3454e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius 35d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Piusandroid::binder::Status Iface::AddNetwork( 36d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius android::sp<fi::w1::wpa_supplicant::INetwork> *network_object_out) 37d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius{ 38d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 39d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!wpa_s) { 40d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 41d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_IFACE_INVALID, 42d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant does not control this interface."); 43d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 44d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 45d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_ssid *ssid = wpa_config_add_network(wpa_s->conf); 46d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!ssid) { 47d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 48d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_GENERIC, "wpa_supplicant couldn't add this network."); 49d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 50d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 51d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius // This sequence of steps after network addition is following what is 52d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius // currently being done in |ctrl_iface.c| & |dbus_new_handlers|. 53d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius // Notify the control interfaces about the network addition. 54d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius wpas_notify_network_added(wpa_s, ssid); 55d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius // Set the new network to be disabled. 56d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ssid->disabled = 1; 57d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius // Set defaults for the new network. 58d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius wpa_config_set_network_defaults(ssid); 59d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 60d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius BinderManager *binder_manager = BinderManager::getInstance(); 61d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!binder_manager || 62d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius binder_manager->getNetworkBinderObjectByIfnameAndNetworkId( 63d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius wpa_s->ifname, ssid->id, network_object_out)) { 64d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 65d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_GENERIC, 66d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant encountered a binder error."); 67d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 68d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius return android::binder::Status::ok(); 69d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius} 70d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius 71d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Piusandroid::binder::Status Iface::RemoveNetwork(int network_id) 72d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius{ 73d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 74d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!wpa_s) { 75d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 76d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_IFACE_INVALID, 77d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant does not control this interface."); 78d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 79d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 80d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_ssid *ssid = wpa_config_get_network(wpa_s->conf, network_id); 81d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!ssid) { 82d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 83d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_NETWORK_UNKNOWN, 84d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant does not control this network."); 85d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 86d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (wpa_config_remove_network(wpa_s->conf, network_id)) { 87d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 88d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_GENERIC, 89d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant couldn't remove this network."); 90d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 91d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::ok(); 92d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius} 93d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 94d385445171074ae070c5ddce94344ec0f06d15b4Roshan Piusandroid::binder::Status Iface::GetNetwork( 95d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius int network_id, 96d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius android::sp<fi::w1::wpa_supplicant::INetwork> *network_object_out) 97d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius{ 98d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 99d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!wpa_s) { 100d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 101d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_IFACE_INVALID, 102d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant does not control this interface."); 103d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 104d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 105d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_ssid *ssid = wpa_config_get_network(wpa_s->conf, network_id); 106d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!ssid) { 107d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 108d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_NETWORK_UNKNOWN, 109d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant does not control this network."); 110d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 111d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 112d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius BinderManager *binder_manager = BinderManager::getInstance(); 113d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!binder_manager || 114d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius binder_manager->getNetworkBinderObjectByIfnameAndNetworkId( 115d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius wpa_s->ifname, ssid->id, network_object_out)) { 116d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 117d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_GENERIC, 118d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant encountered a binder error."); 119d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 120d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius return android::binder::Status::ok(); 121d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius} 122d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius 1230470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Piusandroid::binder::Status Iface::RegisterCallback( 1240470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius const android::sp<fi::w1::wpa_supplicant::IIfaceCallback> &callback) 1250470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius{ 1260470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 1270470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius if (!wpa_s) { 1280470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius return android::binder::Status::fromServiceSpecificError( 1290470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius ERROR_IFACE_INVALID, 1300470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius "wpa_supplicant does not control this interface."); 1310470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius } 1320470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius BinderManager *binder_manager = BinderManager::getInstance(); 1330470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius if (!binder_manager || 1340470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius binder_manager->addIfaceCallbackBinderObject(ifname_, callback)) { 1350470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius return android::binder::Status::fromServiceSpecificError( 1360470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius ERROR_GENERIC, 1370470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius "wpa_supplicant encountered a binder error."); 1380470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius } 1390470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius return android::binder::Status::ok(); 1400470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius} 1410470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius 14254e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius/** 14354e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius * Retrieve the underlying |wpa_supplicant| struct pointer for 14454e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius * this iface. 14554e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius * If the underlying iface is removed, then all RPC method calls 14654e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius * on this object will return failure. 14754e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius */ 14854e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Piuswpa_supplicant *Iface::retrieveIfacePtr() 14954e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius{ 15054e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius return wpa_supplicant_get_iface( 15154e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius (struct wpa_global *)wpa_global_, ifname_.c_str()); 15254e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius} 15354e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius 15454e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius} // namespace wpa_supplicant_binder 155