aboutsummaryrefslogtreecommitdiffstats
path: root/ui/gtk/main_80211_toolbar.c
blob: 212c9ffbb4cae972bbdc61402be0e5ede6afa73f (plain)
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
/* main_80211_toolbar.c
 * The 802.11 toolbar by Pontus Fuchs <pontus.fuchs@gmail.com>
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/*
 * This file implements the "80211" toolbar for Wireshark.
 */

#include "config.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <gtk/gtk.h>

#include "epan/prefs.h"

#include "gtkglobals.h"
#include "stock_icons.h"

#include "main.h"
#include "main_toolbar.h"

#include "ui/recent.h"
#include "ui/gtk/old-gtk-compat.h"
#include "ui/ui_util.h"
#include "ui/gtk/main_80211_toolbar.h"

#include "ws80211_utils.h"
#include <capchild/capture_session.h>
#include <capchild/capture_sync.h>

static GtkWidget *tb80211_tb, *tb80211_iface_list_box, *tb80211_freq_list_box, *tb80211_chan_type_box, *tb80211_info_label;

static GArray *tb80211_interfaces;
static struct ws80211_interface *tb80211_current_iface;
static gint32 tb80211_current_freq = -1;
static gint32 tb80211_current_type = -1;

static gboolean tb80211_dont_set_chan;
static gboolean tb80211_dont_set_iface;

static void tb80211_set_info(const char *errstr)
{
    gtk_label_set_markup(GTK_LABEL(tb80211_info_label), errstr);
}

static
void add_channel_type(const char *type, int oldtype, int indx )
{
    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(tb80211_chan_type_box), type);

    if (oldtype != -1 && oldtype == ws80211_str_to_chan_type(type)) {
        gtk_combo_box_set_active(GTK_COMBO_BOX(tb80211_chan_type_box), indx);
        tb80211_current_type = oldtype;
    }
}

static
void tb80211_update_chan_type(void)
{
    static unsigned int tb80211_type_cnt;
    unsigned int i;
    int oldtype = -1;
    for (i = 0; i < tb80211_type_cnt; i++) {
        gtk_combo_box_text_remove(GTK_COMBO_BOX_TEXT(tb80211_chan_type_box), 0);
    }

    if (!tb80211_current_iface) {
        return;
    }

    oldtype = tb80211_current_type;
    tb80211_current_type = -1;

    i = 0;
    add_channel_type(CHAN_NO_HT, oldtype, i++);

    if (tb80211_current_iface->channel_types & (1 << WS80211_CHAN_HT20)) {
        add_channel_type(CHAN_HT20, oldtype, i++);
    }
    if (tb80211_current_iface->channel_types & (1 << WS80211_CHAN_HT40MINUS)) {
        add_channel_type(CHAN_HT40MINUS, oldtype, i++);
    }
    if (tb80211_current_iface->channel_types & (1 << WS80211_CHAN_HT40PLUS)) {
        add_channel_type(CHAN_HT40PLUS, oldtype, i++);
    }
    tb80211_type_cnt = i;
}

static
void tb80211_update_freq(void)
{
    static unsigned int tb80211_freq_cnt;
    unsigned int i;
    gchar *str;
    gint32 oldfreq = 0;

    for (i = 0; i < tb80211_freq_cnt; i++) {
        gtk_combo_box_text_remove(GTK_COMBO_BOX_TEXT(tb80211_freq_list_box), 0);
    }

    oldfreq = tb80211_current_freq;
    tb80211_current_freq = -1;

    if (!tb80211_current_iface)
        return;

    tb80211_freq_cnt = tb80211_current_iface->frequencies->len;
    for (i = 0; i < tb80211_freq_cnt; i++) {
	int freq;
        freq = g_array_index(tb80211_current_iface->frequencies, int, i);
        str = g_strdup_printf("%d MHz (%d)", freq, ws80211_frequency_to_channel(freq));
        gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(tb80211_freq_list_box), str);
        g_free(str);

        if (freq == oldfreq) {
            gtk_combo_box_set_active(GTK_COMBO_BOX(tb80211_freq_list_box), i);
            tb80211_current_freq = oldfreq;
        }
    }
}

static
void tb80211_update_freq_and_type(void)
{
    tb80211_dont_set_chan = TRUE;
    tb80211_update_freq();
    tb80211_update_chan_type();
    tb80211_dont_set_chan = FALSE;
}

#ifdef HAVE_LIBPCAP
/* Get currently selected channel type type enum */
static
int get_selected_channel_type(void)
{
    int ret;
    gchar *s = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(tb80211_chan_type_box));

    ret = ws80211_str_to_chan_type(s);

    g_free(s);
    return ret;
}

/* Invoke dumpcap to set channel */
static int
tb80211_do_set_channel(char *iface, int freq, int type)
{
	gchar *freq_s;
	const gchar *type_s;
	gchar *data, *primary_msg, *secondary_msg;
	int ret;

	freq_s = g_strdup_printf("%d", freq);
	type_s = ws80211_chan_type_to_str(type);
	ret = sync_interface_set_80211_chan(iface, freq_s, type_s,
                                            &data, &primary_msg, &secondary_msg, main_window_update);

	/* Parse the error msg */
	if (ret && primary_msg) {
		return atoi(primary_msg);
	}
	g_free(data);
	g_free(primary_msg);
	g_free(secondary_msg);
	g_free(freq_s);
	return ret;
}

/* Called on freq and type combo box change. */
static void
tb80211_set_channel(void)
{
    gchar *info = NULL;
    int err, selected_chan, new_type, new_freq;

    GtkComboBox *freq_combo = GTK_COMBO_BOX(tb80211_freq_list_box);

    GtkComboBox *type_combo = GTK_COMBO_BOX(tb80211_chan_type_box);

    selected_chan = gtk_combo_box_get_active(freq_combo);
    if (selected_chan < 0)
        return;

    new_freq = g_array_index(tb80211_current_iface->frequencies, int, selected_chan);
    new_type = get_selected_channel_type();

    err = tb80211_do_set_channel(tb80211_current_iface->ifname, new_freq, new_type);
    if (err) {
        info = g_strdup_printf("<b>Failed to set channel: %s</b>", g_strerror(abs(err)));
	/* Try to set back to last working chan */
        err = tb80211_do_set_channel(tb80211_current_iface->ifname, tb80211_current_freq, tb80211_current_type);
        if (err) {
            gtk_combo_box_set_active(freq_combo, -1);
            gtk_combo_box_set_active(type_combo, -1);
            tb80211_current_freq = -1;
            tb80211_current_type = -1;
        }
        else {
            tb80211_update_freq_and_type();
        }
    }
    else {
        info = g_strdup_printf("%s Switched to %d MHz (%d)", tb80211_current_iface->ifname, new_freq, ws80211_frequency_to_channel(new_freq));
        tb80211_current_freq = new_freq;
        tb80211_current_type = new_type;
    }
    tb80211_set_info(info);
    g_free(info);
}

static void
tb80211_set_chan_cb(GtkWidget *widget _U_, gpointer data _U_)
{
    if (!tb80211_current_iface || tb80211_dont_set_chan)
        return;

    tb80211_set_channel();
}
#endif

static void
tb80211_iface_changed_cb(GtkWidget *widget, gpointer data _U_)
{
    unsigned int i;
    int ret;
    struct ws80211_interface *iface;
    struct ws80211_iface_info iface_info;
    gchar *active;

    if (tb80211_dont_set_iface)
        return;

    active = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(widget));

    if (!active || tb80211_dont_set_chan)
        goto out_free;

    for (i = 0; i < tb80211_interfaces->len; i++) {
        iface = g_array_index(tb80211_interfaces, struct ws80211_interface *, i);
        if (strcmp(active, iface->ifname) == 0) {
            tb80211_current_iface = iface;
            break;
        }
    }

    tb80211_current_freq = -1;
    tb80211_current_type = -1;
    if (tb80211_current_iface) {
        ret = ws80211_get_iface_info(tb80211_current_iface->ifname, &iface_info);
        if (!ret) {
            tb80211_current_freq = iface_info.current_freq;
            tb80211_current_type = iface_info.current_chan_type;
        }
    }
    tb80211_update_freq_and_type();

out_free:
    g_free(active);
}

void
tb80211_refresh_interfaces(void)
{
    struct ws80211_interface *iface;
    unsigned int i;
    gboolean same = FALSE;
    gchar *selected_iface = NULL, *info;

    if (!tb80211_tb)
        return;

    if (tb80211_interfaces) {
        selected_iface = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(tb80211_iface_list_box));

        for (i = 0; i < tb80211_interfaces->len; i++)
                gtk_combo_box_text_remove(GTK_COMBO_BOX_TEXT(tb80211_iface_list_box), 0);

        ws80211_free_interfaces(tb80211_interfaces);
        tb80211_interfaces = NULL;
        tb80211_current_iface = NULL;
    }
    tb80211_interfaces = ws80211_find_interfaces();

    if (!tb80211_interfaces) {
        goto out_free;
    }

    tb80211_dont_set_iface = TRUE;
    for (i = 0; i < tb80211_interfaces->len; i++) {
        iface = g_array_index(tb80211_interfaces, struct ws80211_interface *, i);
        gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(tb80211_iface_list_box), iface->ifname);

        if (selected_iface && strcmp(selected_iface, iface->ifname) == 0) {
            gtk_combo_box_set_active(GTK_COMBO_BOX(tb80211_iface_list_box), i);
            tb80211_current_iface = iface;
            same = TRUE;
        }
    }
    tb80211_dont_set_iface = FALSE;

    /* Reset selectors if interface disappeared */
    if (!same) {
        gtk_combo_box_set_active(GTK_COMBO_BOX(tb80211_iface_list_box), -1);
        gtk_combo_box_set_active(GTK_COMBO_BOX(tb80211_freq_list_box), -1);
        gtk_combo_box_set_active(GTK_COMBO_BOX(tb80211_chan_type_box), -1);
    }

    info = g_strdup_printf("%d monitor interfaces found", tb80211_interfaces->len);
    tb80211_set_info(info);
    g_free(info);
out_free:
    g_free(selected_iface);
}

static void
tb80211_add_label(const gchar *text, GtkWidget *tb)
{
    GtkWidget     *label;
    GtkToolItem	  *label_ti;

    label_ti = gtk_tool_item_new();
    gtk_widget_show(GTK_WIDGET (label_ti));
    label = gtk_label_new(text);
    gtk_widget_show(GTK_WIDGET (label));
    gtk_container_add(GTK_CONTAINER(label_ti), label);
    gtk_toolbar_insert(GTK_TOOLBAR(tb), label_ti, -1);
}

GtkWidget *
ws80211_toolbar_new(void)
{
    GtkToolItem	  *ti;
    int ret;

    /* filter toolbar */
    tb80211_tb = gtk_toolbar_new();
    gtk_orientable_set_orientation(GTK_ORIENTABLE(tb80211_tb),
                                GTK_ORIENTATION_HORIZONTAL);

    gtk_widget_show(tb80211_tb);

    tb80211_add_label(" Interface: ", tb80211_tb);

    ti = gtk_tool_item_new();
    gtk_widget_show(GTK_WIDGET (ti));
    tb80211_iface_list_box = gtk_combo_box_text_new();
    g_signal_connect(tb80211_iface_list_box, "changed", G_CALLBACK(tb80211_iface_changed_cb), NULL);
    gtk_container_add(GTK_CONTAINER(ti), tb80211_iface_list_box);
    gtk_widget_show(GTK_WIDGET (tb80211_iface_list_box));
    gtk_toolbar_insert(GTK_TOOLBAR(tb80211_tb), ti, -1);

    tb80211_add_label(" Frequency: ", tb80211_tb);

    ti = gtk_tool_item_new();
    gtk_widget_show(GTK_WIDGET (ti));
    tb80211_freq_list_box = gtk_combo_box_text_new();
#ifdef HAVE_LIBPCAP
    g_signal_connect(tb80211_freq_list_box, "changed", G_CALLBACK(tb80211_set_chan_cb), NULL);
#else
    gtk_widget_set_sensitive(GTK_WIDGET(tb80211_freq_list_box), FALSE);
#endif
    gtk_container_add(GTK_CONTAINER(ti), tb80211_freq_list_box);
    gtk_widget_show(GTK_WIDGET (tb80211_freq_list_box));
    gtk_toolbar_insert(GTK_TOOLBAR(tb80211_tb), ti, -1);

    ti = gtk_tool_item_new();
    gtk_widget_show(GTK_WIDGET (ti));
    tb80211_chan_type_box = gtk_combo_box_text_new();
#ifdef HAVE_LIBPCAP
    g_signal_connect(tb80211_chan_type_box, "changed", G_CALLBACK(tb80211_set_chan_cb), NULL);
#else
    gtk_widget_set_sensitive(GTK_WIDGET(tb80211_freq_list_box), FALSE);
#endif
    gtk_container_add(GTK_CONTAINER(ti), tb80211_chan_type_box);
    gtk_widget_show(GTK_WIDGET (tb80211_chan_type_box));
    gtk_toolbar_insert(GTK_TOOLBAR(tb80211_tb), ti, -1);

    ti = gtk_separator_tool_item_new();
    gtk_widget_show(GTK_WIDGET (ti));
    gtk_toolbar_insert(GTK_TOOLBAR(tb80211_tb), ti, -1);

    ti = gtk_tool_item_new();
    gtk_widget_show(GTK_WIDGET (ti));
    tb80211_info_label = gtk_label_new("");
    gtk_container_add(GTK_CONTAINER(ti), tb80211_info_label);
    gtk_widget_show(GTK_WIDGET (tb80211_info_label));
    gtk_toolbar_insert(GTK_TOOLBAR(tb80211_tb), ti, -1);

    /* make current preferences effective */
    toolbar_redraw_all();

    ret = ws80211_init();
    if(ret) {
        tb80211_set_info("<b>Failed to initialize ws80211</b>");
    } else {
        tb80211_refresh_interfaces();
    }

    return tb80211_tb;
}