1*780fb4a2SCy Schubert /*
2*780fb4a2SCy Schubert * binder interface for wpa_supplicant daemon
3*780fb4a2SCy Schubert * Copyright (c) 2004-2016, Jouni Malinen <j@w1.fi>
4*780fb4a2SCy Schubert * Copyright (c) 2004-2016, Roshan Pius <rpius@google.com>
5*780fb4a2SCy Schubert *
6*780fb4a2SCy Schubert * This software may be distributed under the terms of the BSD license.
7*780fb4a2SCy Schubert * See README for more details.
8*780fb4a2SCy Schubert */
9*780fb4a2SCy Schubert
10*780fb4a2SCy Schubert #include <binder/IPCThreadState.h>
11*780fb4a2SCy Schubert #include <binder/IServiceManager.h>
12*780fb4a2SCy Schubert #include <binder/ProcessState.h>
13*780fb4a2SCy Schubert
14*780fb4a2SCy Schubert #include "binder_manager.h"
15*780fb4a2SCy Schubert
16*780fb4a2SCy Schubert extern "C" {
17*780fb4a2SCy Schubert #include "binder.h"
18*780fb4a2SCy Schubert #include "binder_i.h"
19*780fb4a2SCy Schubert #include "utils/common.h"
20*780fb4a2SCy Schubert #include "utils/eloop.h"
21*780fb4a2SCy Schubert #include "utils/includes.h"
22*780fb4a2SCy Schubert }
23*780fb4a2SCy Schubert
wpas_binder_sock_handler(int sock,void * eloop_ctx,void * sock_ctx)24*780fb4a2SCy Schubert void wpas_binder_sock_handler(int sock, void *eloop_ctx, void *sock_ctx)
25*780fb4a2SCy Schubert {
26*780fb4a2SCy Schubert struct wpa_global *global = (wpa_global *)eloop_ctx;
27*780fb4a2SCy Schubert struct wpas_binder_priv *priv = (wpas_binder_priv *)sock_ctx;
28*780fb4a2SCy Schubert
29*780fb4a2SCy Schubert wpa_printf(
30*780fb4a2SCy Schubert MSG_DEBUG, "Processing binder events on FD %d", priv->binder_fd);
31*780fb4a2SCy Schubert android::IPCThreadState::self()->handlePolledCommands();
32*780fb4a2SCy Schubert }
33*780fb4a2SCy Schubert
wpas_binder_init(struct wpa_global * global)34*780fb4a2SCy Schubert struct wpas_binder_priv *wpas_binder_init(struct wpa_global *global)
35*780fb4a2SCy Schubert {
36*780fb4a2SCy Schubert struct wpas_binder_priv *priv;
37*780fb4a2SCy Schubert wpa_supplicant_binder::BinderManager *binder_manager;
38*780fb4a2SCy Schubert
39*780fb4a2SCy Schubert priv = (wpas_binder_priv *)os_zalloc(sizeof(*priv));
40*780fb4a2SCy Schubert if (!priv)
41*780fb4a2SCy Schubert return NULL;
42*780fb4a2SCy Schubert priv->global = global;
43*780fb4a2SCy Schubert
44*780fb4a2SCy Schubert android::ProcessState::self()->setThreadPoolMaxThreadCount(0);
45*780fb4a2SCy Schubert android::IPCThreadState::self()->disableBackgroundScheduling(true);
46*780fb4a2SCy Schubert android::IPCThreadState::self()->setupPolling(&priv->binder_fd);
47*780fb4a2SCy Schubert wpa_printf(MSG_INFO, "Process binder events on FD %d", priv->binder_fd);
48*780fb4a2SCy Schubert if (priv->binder_fd < 0)
49*780fb4a2SCy Schubert goto err;
50*780fb4a2SCy Schubert /* Look for read events from the binder socket in the eloop. */
51*780fb4a2SCy Schubert if (eloop_register_read_sock(
52*780fb4a2SCy Schubert priv->binder_fd, wpas_binder_sock_handler, global, priv) < 0)
53*780fb4a2SCy Schubert goto err;
54*780fb4a2SCy Schubert
55*780fb4a2SCy Schubert binder_manager = wpa_supplicant_binder::BinderManager::getInstance();
56*780fb4a2SCy Schubert if (!binder_manager)
57*780fb4a2SCy Schubert goto err;
58*780fb4a2SCy Schubert binder_manager->registerBinderService(global);
59*780fb4a2SCy Schubert /* We may not need to store this binder manager reference in the
60*780fb4a2SCy Schubert * global data strucure because we've made it a singleton class. */
61*780fb4a2SCy Schubert priv->binder_manager = (void *)binder_manager;
62*780fb4a2SCy Schubert
63*780fb4a2SCy Schubert return priv;
64*780fb4a2SCy Schubert
65*780fb4a2SCy Schubert err:
66*780fb4a2SCy Schubert wpas_binder_deinit(priv);
67*780fb4a2SCy Schubert return NULL;
68*780fb4a2SCy Schubert }
69*780fb4a2SCy Schubert
wpas_binder_deinit(struct wpas_binder_priv * priv)70*780fb4a2SCy Schubert void wpas_binder_deinit(struct wpas_binder_priv *priv)
71*780fb4a2SCy Schubert {
72*780fb4a2SCy Schubert if (!priv)
73*780fb4a2SCy Schubert return;
74*780fb4a2SCy Schubert
75*780fb4a2SCy Schubert wpa_supplicant_binder::BinderManager::destroyInstance();
76*780fb4a2SCy Schubert eloop_unregister_read_sock(priv->binder_fd);
77*780fb4a2SCy Schubert android::IPCThreadState::shutdown();
78*780fb4a2SCy Schubert }
79*780fb4a2SCy Schubert
wpas_binder_register_interface(struct wpa_supplicant * wpa_s)80*780fb4a2SCy Schubert int wpas_binder_register_interface(struct wpa_supplicant *wpa_s)
81*780fb4a2SCy Schubert {
82*780fb4a2SCy Schubert if (!wpa_s->global->binder)
83*780fb4a2SCy Schubert return 1;
84*780fb4a2SCy Schubert
85*780fb4a2SCy Schubert wpa_supplicant_binder::BinderManager *binder_manager =
86*780fb4a2SCy Schubert wpa_supplicant_binder::BinderManager::getInstance();
87*780fb4a2SCy Schubert if (!binder_manager)
88*780fb4a2SCy Schubert return 1;
89*780fb4a2SCy Schubert
90*780fb4a2SCy Schubert return binder_manager->registerInterface(wpa_s);
91*780fb4a2SCy Schubert }
92*780fb4a2SCy Schubert
wpas_binder_unregister_interface(struct wpa_supplicant * wpa_s)93*780fb4a2SCy Schubert int wpas_binder_unregister_interface(struct wpa_supplicant *wpa_s)
94*780fb4a2SCy Schubert {
95*780fb4a2SCy Schubert if (!wpa_s->global->binder)
96*780fb4a2SCy Schubert return 1;
97*780fb4a2SCy Schubert
98*780fb4a2SCy Schubert wpa_supplicant_binder::BinderManager *binder_manager =
99*780fb4a2SCy Schubert wpa_supplicant_binder::BinderManager::getInstance();
100*780fb4a2SCy Schubert if (!binder_manager)
101*780fb4a2SCy Schubert return 1;
102*780fb4a2SCy Schubert
103*780fb4a2SCy Schubert return binder_manager->unregisterInterface(wpa_s);
104*780fb4a2SCy Schubert }
105