summaryrefslogtreecommitdiffstats
path: root/input/manager.c
blob: a2a22762fe68ca10410d091449e9a1202e2cf837 (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
/*
 *
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2004-2008  Marcel Holtmann <marcel@holtmann.org>
 *
 *
 *  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 St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>

#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
#include <bluetooth/hidp.h>
#include <bluetooth/sdp.h>
#include <bluetooth/sdp_lib.h>

#include <glib.h>
#include <dbus/dbus.h>
#include <gdbus.h>

#include "logging.h"
#include "textfile.h"
#include "../src/adapter.h"
#include "../src/device.h"

#include "device.h"
#include "server.h"
#include "error.h"
#include "manager.h"
#include "storage.h"
#include "glib-helper.h"

static int idle_timeout = 0;

static DBusConnection *connection = NULL;

static void epox_endian_quirk(unsigned char *data, int size)
{
	/* USAGE_PAGE (Keyboard)	05 07
	 * USAGE_MINIMUM (0)		19 00
	 * USAGE_MAXIMUM (65280)	2A 00 FF   <= must be FF 00
	 * LOGICAL_MINIMUM (0)		15 00
	 * LOGICAL_MAXIMUM (65280)	26 00 FF   <= must be FF 00
	 */
	unsigned char pattern[] = { 0x05, 0x07, 0x19, 0x00, 0x2a, 0x00, 0xff,
						0x15, 0x00, 0x26, 0x00, 0xff };
	int i;

	if (!data)
		return;

	for (i = 0; i < size - sizeof(pattern); i++) {
		if (!memcmp(data + i, pattern, sizeof(pattern))) {
			data[i + 5] = 0xff;
			data[i + 6] = 0x00;
			data[i + 10] = 0xff;
			data[i + 11] = 0x00;
		}
	}
}

static void extract_hid_record(sdp_record_t *rec, struct hidp_connadd_req *req)
{
	sdp_data_t *pdlist, *pdlist2;
	uint8_t attr_val;

	pdlist = sdp_data_get(rec, 0x0101);
	pdlist2 = sdp_data_get(rec, 0x0102);
	if (pdlist) {
		if (pdlist2) {
			if (strncmp(pdlist->val.str, pdlist2->val.str, 5)) {
				strncpy(req->name, pdlist2->val.str, 127);
				strcat(req->name, " ");
			}
			strncat(req->name, pdlist->val.str, 127 - strlen(req->name));
		} else
			strncpy(req->name, pdlist->val.str, 127);
	} else {
		pdlist2 = sdp_data_get(rec, 0x0100);
		if (pdlist2)
			strncpy(req->name, pdlist2->val.str, 127);
 	}

	pdlist = sdp_data_get(rec, SDP_ATTR_HID_PARSER_VERSION);
	req->parser = pdlist ? pdlist->val.uint16 : 0x0100;

	pdlist = sdp_data_get(rec, SDP_ATTR_HID_DEVICE_SUBCLASS);
	req->subclass = pdlist ? pdlist->val.uint8 : 0;

	pdlist = sdp_data_get(rec, SDP_ATTR_HID_COUNTRY_CODE);
	req->country = pdlist ? pdlist->val.uint8 : 0;

	pdlist = sdp_data_get(rec, SDP_ATTR_HID_VIRTUAL_CABLE);
	attr_val = pdlist ? pdlist->val.uint8 : 0;
	if (attr_val)
		req->flags |= (1 << HIDP_VIRTUAL_CABLE_UNPLUG);

	pdlist = sdp_data_get(rec, SDP_ATTR_HID_BOOT_DEVICE);
	attr_val = pdlist ? pdlist->val.uint8 : 0;
	if (attr_val)
		req->flags |= (1 << HIDP_BOOT_PROTOCOL_MODE);

	pdlist = sdp_data_get(rec, SDP_ATTR_HID_DESCRIPTOR_LIST);
	if (pdlist) {
		pdlist = pdlist->val.dataseq;
		pdlist = pdlist->val.dataseq;
		pdlist = pdlist->next;

		req->rd_data = g_try_malloc0(pdlist->unitSize);
		if (req->rd_data) {
			memcpy(req->rd_data, (unsigned char *) pdlist->val.str,
								pdlist->unitSize);
			req->rd_size = pdlist->unitSize;
			epox_endian_quirk(req->rd_data, req->rd_size);
		}
	}
}

/*
 * Stored inputs registration functions
 */

static int load_stored(const char *source, const char *destination,
			struct hidp_connadd_req *hidp)
{
	char filename[PATH_MAX + 1];
	char *value;

	/* load the input stored */
	create_name(filename, PATH_MAX, STORAGEDIR, destination, "input");

	value = textfile_get(filename, destination);
	if (!value)
		return -EINVAL;

	memset(&hidp, 0, sizeof(hidp));

	return parse_stored_device_info(value, hidp);
}

static void input_remove(struct btd_device *device, const char *uuid)
{
	const gchar *path = device_get_path(device);

	DBG("path %s", path);

	input_device_unregister(path, uuid);
}

static int hid_device_probe(struct btd_device *device, GSList *records)
{
	struct btd_adapter *adapter = device_get_adapter(device);
	const gchar *path = device_get_path(device);
	const char *source, *destination;
	struct hidp_connadd_req hidp;
	bdaddr_t src, dst;

	DBG("path %s", path);

	memset(&hidp, 0, sizeof(hidp));

	source = adapter_get_address(adapter);
	destination = device_get_address(device);

	if (load_stored(source, destination, &hidp) == 0)
		goto done;

	hidp.idle_to = idle_timeout * 60;

	extract_hid_record(records->data, &hidp);

done:
	str2ba(source, &src);
	str2ba(destination, &dst);

	store_device_info(&src, &dst, &hidp);

	if (hidp.rd_data)
		g_free(hidp.rd_data);

	return input_device_register(connection, path, &src, &dst,
				HID_UUID, hidp.idle_to);
}

static void hid_device_remove(struct btd_device *device)
{
	input_remove(device, HID_UUID);
}

static int headset_probe(struct btd_device *device, GSList *records)
{
	struct btd_adapter *adapter = device_get_adapter(device);
	const gchar *path = device_get_path(device);
	sdp_record_t *record = records->data;
	sdp_list_t *protos;
	uint8_t ch;
	const char *source, *destination;
	bdaddr_t src, dst;

	DBG("path %s", path);

	if (sdp_get_access_protos(record, &protos) < 0) {
		error("Invalid record");
		return -EINVAL;
	}

	ch = sdp_get_proto_port(protos, RFCOMM_UUID);
	sdp_list_foreach(protos, (sdp_list_func_t) sdp_list_free, NULL);
	sdp_list_free(protos, NULL);

	if (ch <= 0) {
		error("Invalid RFCOMM channel");
		return -EINVAL;
	}

	source = adapter_get_address(adapter);
	destination = device_get_address(device);

	str2ba(source, &src);
	str2ba(destination, &dst);

	return fake_input_register(connection, path, &src, &dst,
				HSP_HS_UUID, ch);
}

static void headset_remove(struct btd_device *device)
{
	input_remove(device, HSP_HS_UUID);
}

static int hid_server_probe(struct btd_adapter *adapter)
{
	const char *addr;
	bdaddr_t src;

	addr = adapter_get_address(adapter);
	str2ba(addr, &src);

	return server_start(&src);
}

static void hid_server_remove(struct btd_adapter *adapter)
{
	const char *addr;
	bdaddr_t src;

	addr = adapter_get_address(adapter);
	str2ba(addr, &src);

	server_stop(&src);
}

static struct btd_device_driver input_hid_driver = {
	.name	= "input-hid",
	.uuids	= BTD_UUIDS(HID_UUID),
	.probe	= hid_device_probe,
	.remove	= hid_device_remove,
};

static struct btd_device_driver input_headset_driver = {
	.name	= "input-headset",
	.uuids	= BTD_UUIDS(HSP_HS_UUID),
	.probe	= headset_probe,
	.remove	= headset_remove,
};

static struct btd_adapter_driver input_server_driver = {
	.name   = "input-server",
	.probe  = hid_server_probe,
	.remove = hid_server_remove,
};

int input_manager_init(DBusConnection *conn, GKeyFile *config)
{
	GError *err = NULL;

	if (config) {
		idle_timeout = g_key_file_get_integer(config, "General",
						"IdleTimeout", &err);
		if (err) {
			debug("input.conf: %s", err->message);
			g_error_free(err);
		}
	}

	connection = dbus_connection_ref(conn);

	btd_register_adapter_driver(&input_server_driver);

	btd_register_device_driver(&input_hid_driver);
	btd_register_device_driver(&input_headset_driver);

	return 0;
}

void input_manager_exit(void)
{

	btd_unregister_adapter_driver(&input_server_driver);

	btd_unregister_device_driver(&input_hid_driver);
	btd_unregister_device_driver(&input_headset_driver);

	dbus_connection_unref(connection);

	connection = NULL;
}