1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
|
/* Copyright 2016 ALPS ELECTRIC CO., LTD.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* file
*
* \brief Implementation of WiFi Binder for AGL's App Framework
*
* \author ALPS Electric
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <json-c/json.h>
#include <afb/afb-binding.h>
#include "wifi-api.h"
#include "wifi-connman.h"
/*
* the interface to afb-daemon
*/
const struct afb_binding_interface *afbitf;
static int need_password_flag = 0;
static int password_not_correct_flag = 0;
char *passkey;
callback ptr_my_callback;
GSList *wifi_list = NULL;
/**
* \brief Read out the passkey from the use and pass it to Agent
*
* \todo Since I do not know how to subscribe for the events from framework,
* it is necessary first to register the password http://IP_ADDRESS:PORT/api/wifi-manager/security?passkey=mypassword.
* Then this function is called automatically.
*
*
* */
void passkey_inserted(void) {
printf("Passkey inserted: %s\n", passkey);
if (passkey != NULL) {
registerPasskey(passkey);
} else {
printf("Please enter the password first\n");
}
}
/**
* \brief Notify user that password is necessary
*
* This function is called from the registered agent on RequestInput() call.
* \todo Subscribe for this event from GUI.
*
* */
void ask_for_passkey(int password_rejected_flag) {
//TODO: show network we are asking password for
printf("Insert passkey.\n");
if (!password_rejected_flag) {
need_password_flag = 1;
password_not_correct_flag = 0;
//sleep(1);
passkey_inserted();
}
else if (password_rejected_flag) {
need_password_flag = 1;
printf("Password not correct!\n");
}
}
/**
* \brief Insert passkey that will be used for connections to secured AP.
*
* \TODO Only temporary, user should enter the password on ask_for_passkey() callback
*
* */
void wifi_insertpasskey(struct afb_req request) {
const char *passkey_from_user;
/* retrieves the argument, expects password string */
passkey_from_user = afb_req_value(request, "passkey");
if (passkey_from_user == NULL) {
//TODO:better error message
afb_req_fail(request, "failed", "specify a security key");
} else {
passkey = g_try_malloc0(256);
strcpy(passkey, passkey_from_user);
printf("Passkey is %s\n", passkey);
}
afb_req_success(request, NULL, NULL);
}
/**
* \brief initialize the binder and activates the WiFi HW, should be called first
*
* This will fail if
* - agent for handling password requests cannot be registered
* - some error is returned from connman
*
*
* \return result of the request, either "success" or "failed" with description
*/
static void wifi_activate(struct afb_req request) /*AFB_SESSION_CHECK*/
{
json_object *jresp;
GError *error = NULL;
if (ptr_my_callback == NULL) {
printf("Registering callback\n");
ptr_my_callback = ask_for_passkey;
register_callback(ptr_my_callback);
}
jresp = json_object_new_object();
json_object_object_add(jresp, "activation", json_object_new_string("on"));
error = do_wifiActivate();
if (error == NULL) {
afb_req_success(request, jresp, "Wi-Fi - Activated");
} else
afb_req_fail(request, "failed", error->message);
}
/**
* \brief deinitialize the binder and activates the WiFi HW
*
* This will fail if
* - agent for handling password requests cannot be unregistered
* - some error is returned from connman
*
*
* \return result of the request, either "success" or "failed" with description
*/
static void wifi_deactivate(struct afb_req request) /*AFB_SESSION_CHECK*/
{
json_object *jresp;
GError *error = NULL;
ptr_my_callback = NULL;
jresp = json_object_new_object();
json_object_object_add(jresp, "deactivation", json_object_new_string("on"));
error = do_wifiDeactivate();
if (error == NULL) {
afb_req_success(request, jresp, "Wi-Fi - Activated");
} else
afb_req_fail(request, "failed", error->message);
}
/**
* \brief starts scan
*
* \return result of the request, either "success" or "failed" with description
*/
void wifi_scan(struct afb_req request) /*AFB_SESSION_NONE*/
{
GError *error = NULL;
error = do_wifiScan();
if (error == NULL) {
afb_req_success(request, NULL, "Wi-Fi - Scan success");
} else
afb_req_fail(request, "failed", error->message);
}
/**
* \brief return network list
*
*
* \return result of the request, either "success" or "failed" with description
*/
void wifi_scanResult(struct afb_req request) /*AFB_SESSION_CHECK*/
{
struct wifi_profile_info *wifiProfile = NULL;
GSList *list = NULL;
GSList *holdMe = NULL;
wifi_list = NULL;
char *essid = NULL;
char *address = NULL;
char *security = NULL;
char *state = NULL;
int strength = 0;
int number = 0;
GError *error = NULL;
error = do_displayScan(&wifi_list); /*Get wifi scan list*/
if (error == NULL) {
json_object *my_array = json_object_new_array();
for (list = wifi_list; list; list = list->next) { /*extract wifi scan result*/
wifiProfile = (struct wifi_profile_info *) list->data;
security = wifiProfile->Security.sec_type;
strength = wifiProfile->Strength;
//if (essid == NULL || security == NULL)
// continue;
essid = wifiProfile->ESSID == NULL ?
"HiddenSSID" : wifiProfile->ESSID;
address =
wifiProfile->wifiNetwork.IPaddress == NULL ?
"unsigned" : wifiProfile->wifiNetwork.IPaddress;
state = wifiProfile->state;
//TODO: is there a case when security is NULL?
json_object *int1 = json_object_new_int(number);
json_object *int2 = json_object_new_int(strength);
json_object *jstring1 = json_object_new_string(essid);
json_object *jstring2 = json_object_new_string(security);
json_object *jstring3 = json_object_new_string(address);
json_object *jstring4 = json_object_new_string(state);
json_object *jresp = json_object_new_object();
json_object_object_add(jresp, "Number", int1);
json_object_object_add(jresp, "Strength", int2);
json_object_object_add(jresp, "ESSID", jstring1);
json_object_object_add(jresp, "Security", jstring2);
json_object_object_add(jresp, "IPAddress", jstring3);
json_object_object_add(jresp, "State", jstring4);
printf("The object json: %s\n", json_object_to_json_string(jresp));
/*input each scan result into my_array*/
json_object_array_add(my_array, jresp);
number += 1;
}
while (list != NULL) {
printf("Should be freed");
holdMe = list->next;
g_free(list);
list = holdMe;
}
afb_req_success(request, my_array, "Wi-Fi - Scan Result is Displayed");
} else
afb_req_fail(request, "failed", error->message);
}
/**
* \brief connects to network
*
* \param[in] request number of network to connect to
*
* specify number of network to connect to obtained by scan_result() like this,
* http://IP_ADDRESS:PORT/api/wifi-manager/connect?network=1
*/
void wifi_connect(struct afb_req request) {
struct wifi_profile_info *wifiProfileToConnect = NULL;
const char *network;
int network_index = 0;
GError *error = NULL;
GSList *item = NULL;
/* retrieves the argument, expects the network number */
network = afb_req_value(request, "network");
if (network == NULL)
//TODO:better error message
afb_req_fail(request, "failed",
"specify a network number to connect to");
else {
network_index = atoi(network);
printf("Joining network number %d\n", network_index);
}
//get information about desired network
item = g_slist_nth_data(wifi_list, network_index);
if (item == NULL) {
//Index starts from 1
printf("Network with number %d not found.\n", network_index + 1);
//TODO:better error message
afb_req_fail(request, "failed", "bad arguments");
}
else {
wifiProfileToConnect = (struct wifi_profile_info *) item;
printf("Name: %s, strength: %d, %s\n", wifiProfileToConnect->ESSID,
wifiProfileToConnect->Strength,
wifiProfileToConnect->NetworkPath);
//printf ("Connecting to %s\n", wifiProfileToConnect->NetworkPath);
}
error = do_connectNetwork(wifiProfileToConnect->NetworkPath);
if (error == NULL)
afb_req_success(request, NULL, NULL);
else if (password_not_correct_flag) {
need_password_flag = 0;
password_not_correct_flag = 0;
afb_req_fail(request, "password-incorrect", NULL);
} else if (need_password_flag) {
need_password_flag = 0;
afb_req_fail(request, "need-password", NULL);
} else
afb_req_fail(request, "failed", error->message);
}
/**
* \brief disconnect from network
*
* \param[in] request number of network to disconnect from
*
* specify number of network to disconnect from obtained by scan_result() like this,
* http://IP_ADDRESS:PORT/api/wifi-manager/discnnect?network=1
*/
void wifi_disconnect(struct afb_req request) {
struct wifi_profile_info *wifiProfileToConnect = NULL;
const char *network;
int network_index = 0;
GError *error = NULL;
GSList *item = NULL;
/* retrieves the argument, expects the network number */
network = afb_req_value(request, "network");
if (network == NULL)
//TODO:better error message
afb_req_fail(request, "failed",
"specify a network number to disconnect from");
else {
network_index = atoi(network);
printf("Joining network number %d\n", network_index);
}
//get information about desired network
item = g_slist_nth_data(wifi_list, network_index);
if (item == NULL) {
//Index starts from 1
printf("Network with number %d not found.\n", network_index + 1);
//TODO:better error message
afb_req_fail(request, "failed", "bad arguments");
}
else {
wifiProfileToConnect = (struct wifi_profile_info *) item;
printf("Name: %s, strength: %d, %s\n", wifiProfileToConnect->ESSID,
wifiProfileToConnect->Strength,
wifiProfileToConnect->NetworkPath);
//printf ("Connecting to %s\n", wifiProfileToConnect->NetworkPath);
}
error = do_disconnectNetwork(wifiProfileToConnect->NetworkPath);
if (error == NULL)
afb_req_success(request, NULL, NULL);
else
afb_req_fail(request, "failed", error->message);
}
/**
* \brief return current status of connection
*
* \return result of the request, either "success" or "failed" with description
*/
void wifi_status(struct afb_req request) {
int error = 0;
wifi_list = NULL;
struct wifiStatus *status;
json_object *jresp = json_object_new_object();
status = g_try_malloc0(sizeof(struct wifiStatus));
error = wifi_state(status); /*get current status of power and connection*/
if (!error) {
if (status->state == 0) {/*Wi-Fi is OFF*/
json_object_object_add(jresp, "Power",
json_object_new_string("OFF"));
//json_object_object_add(jresp, "Connection", json_object_new_string("Disconnected"));
printf("Wi-Fi OFF\n");
} else {/*Wi-Fi is ON*/
json_object_object_add(jresp, "Power",
json_object_new_string("ON"));
if (status->connected == 0) {/*disconnected*/
json_object_object_add(jresp, "Connection",
json_object_new_string("Disconnected"));
printf("Wi-Fi ON - Disconnected \n");
} else {/*Connected*/
json_object_object_add(jresp, "Connection",
json_object_new_string("Connected"));
printf("Wi-Fi ON - Connected \n");
}
}
afb_req_success(request, jresp, "Wi-Fi - Connection Status Checked");
} else {
afb_req_fail(request, "failed", "Wi-Fi - Connection Status unknown");
}
}
void wifi_reconnect() {
/*TBD*/
}
/*
* array of the verbs exported to afb-daemon
*/
static const struct afb_verb_desc_v1 binding_verbs[] = {
/* VERB'S NAME SESSION MANAGEMENT FUNCTION TO CALL SHORT DESCRIPTION */
{ .name = "activate", .session = AFB_SESSION_NONE, .callback = wifi_activate, .info = "Activate Wi-Fi" },
{ .name = "deactivate", .session = AFB_SESSION_NONE, .callback = wifi_deactivate, .info ="Deactivate Wi-Fi" },
{ .name = "scan", .session = AFB_SESSION_NONE, .callback = wifi_scan, .info = "Scanning Wi-Fi" },
{ .name = "scan_result",.session = AFB_SESSION_NONE, .callback = wifi_scanResult, .info = "Get scan result Wi-Fi" },
{ .name = "connect", .session = AFB_SESSION_NONE, .callback = wifi_connect, .info ="Connecting to Access Point" },
{ .name = "status", .session = AFB_SESSION_NONE, .callback = wifi_status, .info ="Check connection status" },
{ .name = "disconnect", .session = AFB_SESSION_NONE, .callback = wifi_disconnect, .info ="Disconnecting connection" },
{ .name = "reconnect", .session = AFB_SESSION_NONE, .callback = wifi_reconnect, .info ="Reconnecting to Access Point" },
{ .name = "security", .session = AFB_SESSION_NONE, .callback = wifi_insertpasskey, .info ="Insert passkey" },
{ .name = NULL } /* marker for end of the array */
};
/*
* description of the binding for afb-daemon
*/
static const struct afb_binding binding_description = {
/* description conforms to VERSION 1 */
.type = AFB_BINDING_VERSION_1, .v1 = { /* fills the v1 field of the union when AFB_BINDING_VERSION_1 */
.prefix = "wifi-manager", /* the API name (or binding name or prefix) */
.info = "wifi API", /* short description of of the binding */
.verbs = binding_verbs /* the array describing the verbs of the API */
} };
/*
* activation function for registering the binding called by afb-daemon
*/
const struct afb_binding *afbBindingV1Register(
const struct afb_binding_interface *itf) {
afbitf = itf; // records the interface for accessing afb-daemon
return &binding_description; // returns the description of the binding
}
|