Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 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/IPCThreadState.h> |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 11 | #include <binder/IServiceManager.h> |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 12 | #include <binder/ProcessState.h> |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 13 | |
| 14 | #include "binder_manager.h" |
| 15 | |
| 16 | extern "C" { |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 17 | #include "binder.h" |
| 18 | #include "binder_i.h" |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 19 | #include "utils/common.h" |
| 20 | #include "utils/eloop.h" |
| 21 | #include "utils/includes.h" |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 22 | } |
| 23 | |
| 24 | void wpas_binder_sock_handler(int sock, void *eloop_ctx, void *sock_ctx) |
| 25 | { |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 26 | struct wpa_global *global = (wpa_global *)eloop_ctx; |
| 27 | struct wpas_binder_priv *priv = (wpas_binder_priv *)sock_ctx; |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 28 | |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 29 | wpa_printf( |
| 30 | MSG_DEBUG, "Processing binder events on FD %d", priv->binder_fd); |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 31 | android::IPCThreadState::self()->handlePolledCommands(); |
| 32 | } |
| 33 | |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 34 | struct wpas_binder_priv *wpas_binder_init(struct wpa_global *global) |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 35 | { |
| 36 | struct wpas_binder_priv *priv; |
| 37 | wpa_supplicant_binder::BinderManager *binder_manager; |
| 38 | |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 39 | priv = (wpas_binder_priv *)os_zalloc(sizeof(*priv)); |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 40 | if (!priv) |
| 41 | return NULL; |
| 42 | priv->global = global; |
| 43 | |
Roshan Pius | 54e763a | 2016-07-06 15:41:53 -0700 | [diff] [blame] | 44 | wpa_printf(MSG_DEBUG, "Initing binder control"); |
| 45 | |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 46 | android::ProcessState::self()->setThreadPoolMaxThreadCount(0); |
| 47 | android::IPCThreadState::self()->disableBackgroundScheduling(true); |
| 48 | android::IPCThreadState::self()->setupPolling(&priv->binder_fd); |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 49 | if (priv->binder_fd < 0) |
| 50 | goto err; |
Roshan Pius | 54e763a | 2016-07-06 15:41:53 -0700 | [diff] [blame] | 51 | |
| 52 | wpa_printf( |
| 53 | MSG_INFO, "Processing binder events on FD %d", priv->binder_fd); |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 54 | /* Look for read events from the binder socket in the eloop. */ |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 55 | if (eloop_register_read_sock( |
| 56 | priv->binder_fd, wpas_binder_sock_handler, global, priv) < 0) |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 57 | goto err; |
| 58 | |
| 59 | binder_manager = wpa_supplicant_binder::BinderManager::getInstance(); |
| 60 | if (!binder_manager) |
| 61 | goto err; |
| 62 | binder_manager->registerBinderService(global); |
| 63 | /* We may not need to store this binder manager reference in the |
| 64 | * global data strucure because we've made it a singleton class. */ |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 65 | priv->binder_manager = (void *)binder_manager; |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 66 | |
| 67 | return priv; |
| 68 | |
| 69 | err: |
| 70 | wpas_binder_deinit(priv); |
| 71 | return NULL; |
| 72 | } |
| 73 | |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 74 | void wpas_binder_deinit(struct wpas_binder_priv *priv) |
| 75 | { |
| 76 | if (!priv) |
| 77 | return; |
| 78 | |
Roshan Pius | 54e763a | 2016-07-06 15:41:53 -0700 | [diff] [blame] | 79 | wpa_printf(MSG_DEBUG, "Deiniting binder control"); |
| 80 | |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 81 | wpa_supplicant_binder::BinderManager::destroyInstance(); |
| 82 | eloop_unregister_read_sock(priv->binder_fd); |
| 83 | android::IPCThreadState::shutdown(); |
| 84 | } |
| 85 | |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 86 | int wpas_binder_register_interface(struct wpa_supplicant *wpa_s) |
| 87 | { |
Roshan Pius | 32c15e2 | 2016-07-07 13:46:39 -0700 | [diff] [blame] | 88 | if (!wpa_s->global->binder || !wpa_s) |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 89 | return 1; |
| 90 | |
Roshan Pius | 54e763a | 2016-07-06 15:41:53 -0700 | [diff] [blame] | 91 | wpa_printf( |
| 92 | MSG_DEBUG, "Registering interface to binder control: %s", |
| 93 | wpa_s->ifname); |
| 94 | |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 95 | wpa_supplicant_binder::BinderManager *binder_manager = |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 96 | wpa_supplicant_binder::BinderManager::getInstance(); |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 97 | if (!binder_manager) |
| 98 | return 1; |
| 99 | |
| 100 | return binder_manager->registerInterface(wpa_s); |
| 101 | } |
| 102 | |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 103 | int wpas_binder_unregister_interface(struct wpa_supplicant *wpa_s) |
| 104 | { |
Roshan Pius | 32c15e2 | 2016-07-07 13:46:39 -0700 | [diff] [blame] | 105 | if (!wpa_s->global->binder || !wpa_s) |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 106 | return 1; |
| 107 | |
Roshan Pius | 54e763a | 2016-07-06 15:41:53 -0700 | [diff] [blame] | 108 | wpa_printf( |
| 109 | MSG_DEBUG, "Deregistering interface from binder control: %s", |
| 110 | wpa_s->ifname); |
| 111 | |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 112 | wpa_supplicant_binder::BinderManager *binder_manager = |
Dmitry Shmidt | 7f2c753 | 2016-08-15 09:48:12 -0700 | [diff] [blame] | 113 | wpa_supplicant_binder::BinderManager::getInstance(); |
Dmitry Shmidt | e466304 | 2016-04-04 10:07:49 -0700 | [diff] [blame] | 114 | if (!binder_manager) |
| 115 | return 1; |
| 116 | |
| 117 | return binder_manager->unregisterInterface(wpa_s); |
| 118 | } |
Roshan Pius | d385445 | 2016-07-07 16:46:41 -0700 | [diff] [blame^] | 119 | |
| 120 | int wpas_binder_register_network( |
| 121 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
| 122 | { |
| 123 | if (!wpa_s->global->binder || !wpa_s || !ssid) |
| 124 | return 1; |
| 125 | |
| 126 | wpa_printf( |
| 127 | MSG_DEBUG, "Registering network to binder control: %d", ssid->id); |
| 128 | |
| 129 | wpa_supplicant_binder::BinderManager *binder_manager = |
| 130 | wpa_supplicant_binder::BinderManager::getInstance(); |
| 131 | if (!binder_manager) |
| 132 | return 1; |
| 133 | |
| 134 | return binder_manager->registerNetwork(wpa_s, ssid); |
| 135 | } |
| 136 | |
| 137 | int wpas_binder_unregister_network( |
| 138 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
| 139 | { |
| 140 | if (!wpa_s->global->binder || !wpa_s || !ssid) |
| 141 | return 1; |
| 142 | |
| 143 | wpa_printf( |
| 144 | MSG_DEBUG, "Deregistering network from binder control: %d", |
| 145 | ssid->id); |
| 146 | |
| 147 | wpa_supplicant_binder::BinderManager *binder_manager = |
| 148 | wpa_supplicant_binder::BinderManager::getInstance(); |
| 149 | if (!binder_manager) |
| 150 | return 1; |
| 151 | |
| 152 | return binder_manager->unregisterNetwork(wpa_s, ssid); |
| 153 | } |