sta_iface.cpp revision 8702ba9091ab6dd6702afedb7021c1caa277f8d4
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 158702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius#define RETURN_IF_IFACE_INVALID(wpa_s) \ 168702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius { \ 178702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius if (!wpa_s) { \ 188702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius return android::binder::Status:: \ 198702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius fromServiceSpecificError( \ 208702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius ERROR_IFACE_INVALID, "wpa_supplicant does " \ 218702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius "not control this " \ 228702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius "interface."); \ 238702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius } \ 248702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius } // #define RETURN_IF_IFACE_INVALID(wpa_s) 258702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius 2654e763ada0bed9bf2c48415e82c5f04db23a3330Roshan PiusIface::Iface(struct wpa_global *wpa_global, const char ifname[]) 2754e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius : wpa_global_(wpa_global), ifname_(ifname) 2854e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius{ 2954e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius} 30e4663044d3a689fb5458247e9bc0f8b58cf72fcaDmitry Shmidt 3154e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Piusandroid::binder::Status Iface::GetName(std::string *iface_name_out) 3254e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius{ 3354e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius // We could directly return the name we hold, but let's verify 3454e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius // if the underlying iface still exists. 358702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius RETURN_IF_IFACE_INVALID(retrieveIfacePtr()); 3654e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius *iface_name_out = ifname_; 3754e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius return android::binder::Status::ok(); 3854e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius} 3954e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius 40d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Piusandroid::binder::Status Iface::AddNetwork( 41d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius android::sp<fi::w1::wpa_supplicant::INetwork> *network_object_out) 42d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius{ 43d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 448702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius RETURN_IF_IFACE_INVALID(wpa_s); 45d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 46f745df8121ceec43d19edba801ab7b3d1c689a2aRoshan Pius struct wpa_ssid *ssid = wpa_supplicant_add_network(wpa_s); 47d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!ssid) { 48d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 49d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_GENERIC, "wpa_supplicant couldn't add this network."); 50d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 51d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 52d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius BinderManager *binder_manager = BinderManager::getInstance(); 53d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!binder_manager || 54d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius binder_manager->getNetworkBinderObjectByIfnameAndNetworkId( 55d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius wpa_s->ifname, ssid->id, network_object_out)) { 56d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 57d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_GENERIC, 58d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant encountered a binder error."); 59d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 60d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius return android::binder::Status::ok(); 61d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius} 62d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius 63d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Piusandroid::binder::Status Iface::RemoveNetwork(int network_id) 64d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius{ 65d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 668702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius RETURN_IF_IFACE_INVALID(wpa_s); 67d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 68f745df8121ceec43d19edba801ab7b3d1c689a2aRoshan Pius int result = wpa_supplicant_remove_network(wpa_s, network_id); 69f745df8121ceec43d19edba801ab7b3d1c689a2aRoshan Pius if (result == -1) { 70d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 71d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_NETWORK_UNKNOWN, 72d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant does not control this network."); 73d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 74f745df8121ceec43d19edba801ab7b3d1c689a2aRoshan Pius 75f745df8121ceec43d19edba801ab7b3d1c689a2aRoshan Pius if (result == -2) { 76d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 77d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_GENERIC, 78d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant couldn't remove this network."); 79d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 80d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::ok(); 81d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius} 82d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 83d385445171074ae070c5ddce94344ec0f06d15b4Roshan Piusandroid::binder::Status Iface::GetNetwork( 84d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius int network_id, 85d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius android::sp<fi::w1::wpa_supplicant::INetwork> *network_object_out) 86d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius{ 87d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 888702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius RETURN_IF_IFACE_INVALID(wpa_s); 89d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 90d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius struct wpa_ssid *ssid = wpa_config_get_network(wpa_s->conf, network_id); 91d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!ssid) { 92d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 93d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_NETWORK_UNKNOWN, 94d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant does not control this network."); 95d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 96d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius 97d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius BinderManager *binder_manager = BinderManager::getInstance(); 98d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius if (!binder_manager || 99d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius binder_manager->getNetworkBinderObjectByIfnameAndNetworkId( 100d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius wpa_s->ifname, ssid->id, network_object_out)) { 101d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius return android::binder::Status::fromServiceSpecificError( 102d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius ERROR_GENERIC, 103d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius "wpa_supplicant encountered a binder error."); 104d385445171074ae070c5ddce94344ec0f06d15b4Roshan Pius } 105d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius return android::binder::Status::ok(); 106d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius} 107d6e375115b04e4ce30144a6a21ef4b1f8d3a0071Roshan Pius 1080470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Piusandroid::binder::Status Iface::RegisterCallback( 1090470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius const android::sp<fi::w1::wpa_supplicant::IIfaceCallback> &callback) 1100470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius{ 1110470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius struct wpa_supplicant *wpa_s = retrieveIfacePtr(); 1128702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius RETURN_IF_IFACE_INVALID(wpa_s); 1138702ba9091ab6dd6702afedb7021c1caa277f8d4Roshan Pius 1140470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius BinderManager *binder_manager = BinderManager::getInstance(); 1150470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius if (!binder_manager || 1160470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius binder_manager->addIfaceCallbackBinderObject(ifname_, callback)) { 1170470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius return android::binder::Status::fromServiceSpecificError( 1180470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius ERROR_GENERIC, 1190470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius "wpa_supplicant encountered a binder error."); 1200470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius } 1210470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius return android::binder::Status::ok(); 1220470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius} 1230470cc8ceeb1a152594d90ce65cb13b6b907751bRoshan Pius 12454e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius/** 12554e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius * Retrieve the underlying |wpa_supplicant| struct pointer for 12654e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius * this iface. 12754e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius * If the underlying iface is removed, then all RPC method calls 12854e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius * on this object will return failure. 12954e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius */ 13054e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Piuswpa_supplicant *Iface::retrieveIfacePtr() 13154e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius{ 13254e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius return wpa_supplicant_get_iface( 13354e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius (struct wpa_global *)wpa_global_, ifname_.c_str()); 13454e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius} 13554e763ada0bed9bf2c48415e82c5f04db23a3330Roshan Pius} // namespace wpa_supplicant_binder 136