summaryrefslogtreecommitdiffstats
path: root/net/mac802154/mib.c
blob: 15aa2f2b03a78c29138db43c08073c4ba2817e54 (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
/*
 * Copyright 2007-2012 Siemens AG
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * 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.
 *
 * Written by:
 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
 * Sergey Lapin <slapin@ossfans.org>
 * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
 */

#include <linux/if_arp.h>

#include <net/mac802154.h>
#include <net/ieee802154_netdev.h>
#include <net/wpan-phy.h>

#include "mac802154.h"

struct phy_chan_notify_work {
	struct work_struct work;
	struct net_device *dev;
};

struct hw_addr_filt_notify_work {
	struct work_struct work;
	struct net_device *dev;
	unsigned long changed;
};

static struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	return priv->hw;
}

static void hw_addr_notify(struct work_struct *work)
{
	struct hw_addr_filt_notify_work *nw = container_of(work,
			struct hw_addr_filt_notify_work, work);
	struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev);
	int res;

	res = hw->ops->set_hw_addr_filt(&hw->hw,
					&hw->hw.hw_filt,
					nw->changed);
	if (res)
		pr_debug("failed changed mask %lx\n", nw->changed);

	kfree(nw);
}

static void set_hw_addr_filt(struct net_device *dev, unsigned long changed)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	struct hw_addr_filt_notify_work *work;

	work = kzalloc(sizeof(*work), GFP_ATOMIC);
	if (!work)
		return;

	INIT_WORK(&work->work, hw_addr_notify);
	work->dev = dev;
	work->changed = changed;
	queue_work(priv->hw->dev_workqueue, &work->work);
}

void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	spin_lock_bh(&priv->mib_lock);
	priv->short_addr = val;
	spin_unlock_bh(&priv->mib_lock);

	if ((priv->hw->ops->set_hw_addr_filt) &&
	    (priv->hw->hw.hw_filt.short_addr != priv->short_addr)) {
		priv->hw->hw.hw_filt.short_addr = priv->short_addr;
		set_hw_addr_filt(dev, IEEE802515_AFILT_SADDR_CHANGED);
	}
}

__le16 mac802154_dev_get_short_addr(const struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	__le16 ret;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	spin_lock_bh(&priv->mib_lock);
	ret = priv->short_addr;
	spin_unlock_bh(&priv->mib_lock);

	return ret;
}

void mac802154_dev_set_ieee_addr(struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	struct mac802154_priv *mac = priv->hw;

	priv->extended_addr = ieee802154_devaddr_from_raw(dev->dev_addr);

	if (mac->ops->set_hw_addr_filt &&
	    mac->hw.hw_filt.ieee_addr != priv->extended_addr) {
		mac->hw.hw_filt.ieee_addr = priv->extended_addr;
		set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED);
	}
}

__le16 mac802154_dev_get_pan_id(const struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	__le16 ret;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	spin_lock_bh(&priv->mib_lock);
	ret = priv->pan_id;
	spin_unlock_bh(&priv->mib_lock);

	return ret;
}

void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	spin_lock_bh(&priv->mib_lock);
	priv->pan_id = val;
	spin_unlock_bh(&priv->mib_lock);

	if ((priv->hw->ops->set_hw_addr_filt) &&
	    (priv->hw->hw.hw_filt.pan_id != priv->pan_id)) {
		priv->hw->hw.hw_filt.pan_id = priv->pan_id;
		set_hw_addr_filt(dev, IEEE802515_AFILT_PANID_CHANGED);
	}
}

u8 mac802154_dev_get_dsn(const struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	return priv->dsn++;
}

static void phy_chan_notify(struct work_struct *work)
{
	struct phy_chan_notify_work *nw = container_of(work,
					  struct phy_chan_notify_work, work);
	struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev);
	struct mac802154_sub_if_data *priv = netdev_priv(nw->dev);
	int res;

	mutex_lock(&priv->hw->phy->pib_lock);
	res = hw->ops->set_channel(&hw->hw, priv->page, priv->chan);
	if (res)
		pr_debug("set_channel failed\n");
	else {
		priv->hw->phy->current_channel = priv->chan;
		priv->hw->phy->current_page = priv->page;
	}
	mutex_unlock(&priv->hw->phy->pib_lock);

	kfree(nw);
}

void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	struct phy_chan_notify_work *work;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	spin_lock_bh(&priv->mib_lock);
	priv->page = page;
	priv->chan = chan;
	spin_unlock_bh(&priv->mib_lock);

	mutex_lock(&priv->hw->phy->pib_lock);
	if (priv->hw->phy->current_channel != priv->chan ||
	    priv->hw->phy->current_page != priv->page) {
		mutex_unlock(&priv->hw->phy->pib_lock);

		work = kzalloc(sizeof(*work), GFP_ATOMIC);
		if (!work)
			return;

		INIT_WORK(&work->work, phy_chan_notify);
		work->dev = dev;
		queue_work(priv->hw->dev_workqueue, &work->work);
	} else
		mutex_unlock(&priv->hw->phy->pib_lock);
}


int mac802154_get_params(struct net_device *dev,
			 struct ieee802154_llsec_params *params)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_get_params(&priv->sec, params);
	mutex_unlock(&priv->sec_mtx);

	return res;
}

int mac802154_set_params(struct net_device *dev,
			 const struct ieee802154_llsec_params *params,
			 int changed)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_set_params(&priv->sec, params, changed);
	mutex_unlock(&priv->sec_mtx);

	return res;
}


int mac802154_add_key(struct net_device *dev,
		      const struct ieee802154_llsec_key_id *id,
		      const struct ieee802154_llsec_key *key)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_key_add(&priv->sec, id, key);
	mutex_unlock(&priv->sec_mtx);

	return res;
}

int mac802154_del_key(struct net_device *dev,
		      const struct ieee802154_llsec_key_id *id)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_key_del(&priv->sec, id);
	mutex_unlock(&priv->sec_mtx);

	return res;
}


int mac802154_add_dev(struct net_device *dev,
		      const struct ieee802154_llsec_device *llsec_dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_dev_add(&priv->sec, llsec_dev);
	mutex_unlock(&priv->sec_mtx);

	return res;
}

int mac802154_del_dev(struct net_device *dev, __le64 dev_addr)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_dev_del(&priv->sec, dev_addr);
	mutex_unlock(&priv->sec_mtx);

	return res;
}


int mac802154_add_devkey(struct net_device *dev,
			 __le64 device_addr,
			 const struct ieee802154_llsec_device_key *key)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_devkey_add(&priv->sec, device_addr, key);
	mutex_unlock(&priv->sec_mtx);

	return res;
}

int mac802154_del_devkey(struct net_device *dev,
			 __le64 device_addr,
			 const struct ieee802154_llsec_device_key *key)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_devkey_del(&priv->sec, device_addr, key);
	mutex_unlock(&priv->sec_mtx);

	return res;
}


int mac802154_add_seclevel(struct net_device *dev,
			   const struct ieee802154_llsec_seclevel *sl)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_seclevel_add(&priv->sec, sl);
	mutex_unlock(&priv->sec_mtx);

	return res;
}

int mac802154_del_seclevel(struct net_device *dev,
			   const struct ieee802154_llsec_seclevel *sl)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	int res;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
	res = mac802154_llsec_seclevel_del(&priv->sec, sl);
	mutex_unlock(&priv->sec_mtx);

	return res;
}


void mac802154_lock_table(struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_lock(&priv->sec_mtx);
}

void mac802154_get_table(struct net_device *dev,
			 struct ieee802154_llsec_table **t)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	*t = &priv->sec.table;
}

void mac802154_unlock_table(struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	mutex_unlock(&priv->sec_mtx);
}