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ef2486f5 | 1 | /* |
2 | * Copyright 2007-2012 Siemens AG | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 | |
6 | * as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along | |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | * | |
17 | * Written by: | |
18 | * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | |
19 | * Sergey Lapin <slapin@ossfans.org> | |
20 | * Maxim Gorbachyov <maxim.gorbachev@siemens.com> | |
21 | * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> | |
22 | */ | |
23 | ||
24 | #include <linux/if_arp.h> | |
25 | ||
26 | #include <net/mac802154.h> | |
b70ab2e8 | 27 | #include <net/ieee802154_netdev.h> |
ef2486f5 | 28 | #include <net/wpan-phy.h> |
29 | ||
30 | #include "mac802154.h" | |
31 | ||
66b69d4d | 32 | struct phy_chan_notify_work { |
33 | struct work_struct work; | |
34 | struct net_device *dev; | |
35 | }; | |
36 | ||
ef2486f5 | 37 | struct hw_addr_filt_notify_work { |
38 | struct work_struct work; | |
39 | struct net_device *dev; | |
40 | unsigned long changed; | |
41 | }; | |
42 | ||
42884042 | 43 | static struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev) |
ef2486f5 | 44 | { |
45 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
46 | ||
47 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
48 | ||
49 | return priv->hw; | |
50 | } | |
51 | ||
52 | static void hw_addr_notify(struct work_struct *work) | |
53 | { | |
54 | struct hw_addr_filt_notify_work *nw = container_of(work, | |
55 | struct hw_addr_filt_notify_work, work); | |
56 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); | |
57 | int res; | |
58 | ||
59 | res = hw->ops->set_hw_addr_filt(&hw->hw, | |
60 | &hw->hw.hw_filt, | |
61 | nw->changed); | |
62 | if (res) | |
63 | pr_debug("failed changed mask %lx\n", nw->changed); | |
64 | ||
65 | kfree(nw); | |
ef2486f5 | 66 | } |
67 | ||
68 | static void set_hw_addr_filt(struct net_device *dev, unsigned long changed) | |
69 | { | |
70 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
71 | struct hw_addr_filt_notify_work *work; | |
72 | ||
73 | work = kzalloc(sizeof(*work), GFP_ATOMIC); | |
74 | if (!work) | |
75 | return; | |
76 | ||
77 | INIT_WORK(&work->work, hw_addr_notify); | |
78 | work->dev = dev; | |
79 | work->changed = changed; | |
80 | queue_work(priv->hw->dev_workqueue, &work->work); | |
ef2486f5 | 81 | } |
82 | ||
b70ab2e8 | 83 | void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val) |
48e44d50 | 84 | { |
85 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
86 | ||
87 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
88 | ||
89 | spin_lock_bh(&priv->mib_lock); | |
90 | priv->short_addr = val; | |
91 | spin_unlock_bh(&priv->mib_lock); | |
92 | ||
93 | if ((priv->hw->ops->set_hw_addr_filt) && | |
94 | (priv->hw->hw.hw_filt.short_addr != priv->short_addr)) { | |
95 | priv->hw->hw.hw_filt.short_addr = priv->short_addr; | |
96 | set_hw_addr_filt(dev, IEEE802515_AFILT_SADDR_CHANGED); | |
97 | } | |
98 | } | |
99 | ||
b70ab2e8 | 100 | __le16 mac802154_dev_get_short_addr(const struct net_device *dev) |
e885a47a | 101 | { |
102 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
b70ab2e8 | 103 | __le16 ret; |
e885a47a | 104 | |
105 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
106 | ||
107 | spin_lock_bh(&priv->mib_lock); | |
108 | ret = priv->short_addr; | |
109 | spin_unlock_bh(&priv->mib_lock); | |
110 | ||
111 | return ret; | |
112 | } | |
113 | ||
ef2486f5 | 114 | void mac802154_dev_set_ieee_addr(struct net_device *dev) |
115 | { | |
116 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
117 | struct mac802154_priv *mac = priv->hw; | |
118 | ||
e6278d92 | 119 | priv->extended_addr = ieee802154_devaddr_from_raw(dev->dev_addr); |
b70ab2e8 | 120 | |
e6278d92 PB |
121 | if (mac->ops->set_hw_addr_filt && |
122 | mac->hw.hw_filt.ieee_addr != priv->extended_addr) { | |
123 | mac->hw.hw_filt.ieee_addr = priv->extended_addr; | |
ef2486f5 | 124 | set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED); |
125 | } | |
126 | } | |
dcbe4f93 | 127 | |
b70ab2e8 | 128 | __le16 mac802154_dev_get_pan_id(const struct net_device *dev) |
dcbe4f93 | 129 | { |
130 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
b70ab2e8 | 131 | __le16 ret; |
dcbe4f93 | 132 | |
133 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
134 | ||
135 | spin_lock_bh(&priv->mib_lock); | |
136 | ret = priv->pan_id; | |
137 | spin_unlock_bh(&priv->mib_lock); | |
138 | ||
139 | return ret; | |
140 | } | |
141 | ||
b70ab2e8 | 142 | void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val) |
dcbe4f93 | 143 | { |
144 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
145 | ||
146 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
147 | ||
148 | spin_lock_bh(&priv->mib_lock); | |
149 | priv->pan_id = val; | |
150 | spin_unlock_bh(&priv->mib_lock); | |
151 | ||
152 | if ((priv->hw->ops->set_hw_addr_filt) && | |
153 | (priv->hw->hw.hw_filt.pan_id != priv->pan_id)) { | |
154 | priv->hw->hw.hw_filt.pan_id = priv->pan_id; | |
155 | set_hw_addr_filt(dev, IEEE802515_AFILT_PANID_CHANGED); | |
156 | } | |
157 | } | |
66b69d4d | 158 | |
0483546a TC |
159 | u8 mac802154_dev_get_dsn(const struct net_device *dev) |
160 | { | |
161 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
162 | ||
163 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
164 | ||
165 | return priv->dsn++; | |
166 | } | |
167 | ||
66b69d4d | 168 | static void phy_chan_notify(struct work_struct *work) |
169 | { | |
170 | struct phy_chan_notify_work *nw = container_of(work, | |
171 | struct phy_chan_notify_work, work); | |
172 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); | |
173 | struct mac802154_sub_if_data *priv = netdev_priv(nw->dev); | |
174 | int res; | |
175 | ||
9f7f78b4 | 176 | mutex_lock(&priv->hw->phy->pib_lock); |
66b69d4d | 177 | res = hw->ops->set_channel(&hw->hw, priv->page, priv->chan); |
4710d806 | 178 | if (res) { |
66b69d4d | 179 | pr_debug("set_channel failed\n"); |
4710d806 | 180 | } else { |
9f7f78b4 AO |
181 | priv->hw->phy->current_channel = priv->chan; |
182 | priv->hw->phy->current_page = priv->page; | |
183 | } | |
184 | mutex_unlock(&priv->hw->phy->pib_lock); | |
66b69d4d | 185 | |
186 | kfree(nw); | |
187 | } | |
188 | ||
189 | void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan) | |
190 | { | |
191 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
192 | struct phy_chan_notify_work *work; | |
193 | ||
194 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
195 | ||
196 | spin_lock_bh(&priv->mib_lock); | |
197 | priv->page = page; | |
198 | priv->chan = chan; | |
199 | spin_unlock_bh(&priv->mib_lock); | |
200 | ||
9f7f78b4 | 201 | mutex_lock(&priv->hw->phy->pib_lock); |
66b69d4d | 202 | if (priv->hw->phy->current_channel != priv->chan || |
203 | priv->hw->phy->current_page != priv->page) { | |
9f7f78b4 AO |
204 | mutex_unlock(&priv->hw->phy->pib_lock); |
205 | ||
66b69d4d | 206 | work = kzalloc(sizeof(*work), GFP_ATOMIC); |
207 | if (!work) | |
208 | return; | |
209 | ||
210 | INIT_WORK(&work->work, phy_chan_notify); | |
211 | work->dev = dev; | |
212 | queue_work(priv->hw->dev_workqueue, &work->work); | |
4710d806 | 213 | } else { |
9f7f78b4 | 214 | mutex_unlock(&priv->hw->phy->pib_lock); |
4710d806 | 215 | } |
66b69d4d | 216 | } |
29e02374 PB |
217 | |
218 | ||
219 | int mac802154_get_params(struct net_device *dev, | |
220 | struct ieee802154_llsec_params *params) | |
221 | { | |
222 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
223 | int res; | |
224 | ||
225 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
226 | ||
227 | mutex_lock(&priv->sec_mtx); | |
228 | res = mac802154_llsec_get_params(&priv->sec, params); | |
229 | mutex_unlock(&priv->sec_mtx); | |
230 | ||
231 | return res; | |
232 | } | |
233 | ||
234 | int mac802154_set_params(struct net_device *dev, | |
235 | const struct ieee802154_llsec_params *params, | |
236 | int changed) | |
237 | { | |
238 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
239 | int res; | |
240 | ||
241 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
242 | ||
243 | mutex_lock(&priv->sec_mtx); | |
244 | res = mac802154_llsec_set_params(&priv->sec, params, changed); | |
245 | mutex_unlock(&priv->sec_mtx); | |
246 | ||
247 | return res; | |
248 | } | |
249 | ||
250 | ||
251 | int mac802154_add_key(struct net_device *dev, | |
252 | const struct ieee802154_llsec_key_id *id, | |
253 | const struct ieee802154_llsec_key *key) | |
254 | { | |
255 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
256 | int res; | |
257 | ||
258 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
259 | ||
260 | mutex_lock(&priv->sec_mtx); | |
261 | res = mac802154_llsec_key_add(&priv->sec, id, key); | |
262 | mutex_unlock(&priv->sec_mtx); | |
263 | ||
264 | return res; | |
265 | } | |
266 | ||
267 | int mac802154_del_key(struct net_device *dev, | |
268 | const struct ieee802154_llsec_key_id *id) | |
269 | { | |
270 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
271 | int res; | |
272 | ||
273 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
274 | ||
275 | mutex_lock(&priv->sec_mtx); | |
276 | res = mac802154_llsec_key_del(&priv->sec, id); | |
277 | mutex_unlock(&priv->sec_mtx); | |
278 | ||
279 | return res; | |
280 | } | |
281 | ||
282 | ||
283 | int mac802154_add_dev(struct net_device *dev, | |
284 | const struct ieee802154_llsec_device *llsec_dev) | |
285 | { | |
286 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
287 | int res; | |
288 | ||
289 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
290 | ||
291 | mutex_lock(&priv->sec_mtx); | |
292 | res = mac802154_llsec_dev_add(&priv->sec, llsec_dev); | |
293 | mutex_unlock(&priv->sec_mtx); | |
294 | ||
295 | return res; | |
296 | } | |
297 | ||
298 | int mac802154_del_dev(struct net_device *dev, __le64 dev_addr) | |
299 | { | |
300 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
301 | int res; | |
302 | ||
303 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
304 | ||
305 | mutex_lock(&priv->sec_mtx); | |
306 | res = mac802154_llsec_dev_del(&priv->sec, dev_addr); | |
307 | mutex_unlock(&priv->sec_mtx); | |
308 | ||
309 | return res; | |
310 | } | |
311 | ||
312 | ||
313 | int mac802154_add_devkey(struct net_device *dev, | |
314 | __le64 device_addr, | |
315 | const struct ieee802154_llsec_device_key *key) | |
316 | { | |
317 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
318 | int res; | |
319 | ||
320 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
321 | ||
322 | mutex_lock(&priv->sec_mtx); | |
323 | res = mac802154_llsec_devkey_add(&priv->sec, device_addr, key); | |
324 | mutex_unlock(&priv->sec_mtx); | |
325 | ||
326 | return res; | |
327 | } | |
328 | ||
329 | int mac802154_del_devkey(struct net_device *dev, | |
330 | __le64 device_addr, | |
331 | const struct ieee802154_llsec_device_key *key) | |
332 | { | |
333 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
334 | int res; | |
335 | ||
336 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
337 | ||
338 | mutex_lock(&priv->sec_mtx); | |
339 | res = mac802154_llsec_devkey_del(&priv->sec, device_addr, key); | |
340 | mutex_unlock(&priv->sec_mtx); | |
341 | ||
342 | return res; | |
343 | } | |
344 | ||
345 | ||
346 | int mac802154_add_seclevel(struct net_device *dev, | |
347 | const struct ieee802154_llsec_seclevel *sl) | |
348 | { | |
349 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
350 | int res; | |
351 | ||
352 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
353 | ||
354 | mutex_lock(&priv->sec_mtx); | |
355 | res = mac802154_llsec_seclevel_add(&priv->sec, sl); | |
356 | mutex_unlock(&priv->sec_mtx); | |
357 | ||
358 | return res; | |
359 | } | |
360 | ||
361 | int mac802154_del_seclevel(struct net_device *dev, | |
362 | const struct ieee802154_llsec_seclevel *sl) | |
363 | { | |
364 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
365 | int res; | |
366 | ||
367 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
368 | ||
369 | mutex_lock(&priv->sec_mtx); | |
370 | res = mac802154_llsec_seclevel_del(&priv->sec, sl); | |
371 | mutex_unlock(&priv->sec_mtx); | |
372 | ||
373 | return res; | |
374 | } | |
375 | ||
376 | ||
377 | void mac802154_lock_table(struct net_device *dev) | |
378 | { | |
379 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
380 | ||
381 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
382 | ||
383 | mutex_lock(&priv->sec_mtx); | |
384 | } | |
385 | ||
386 | void mac802154_get_table(struct net_device *dev, | |
387 | struct ieee802154_llsec_table **t) | |
388 | { | |
389 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
390 | ||
391 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
392 | ||
393 | *t = &priv->sec.table; | |
394 | } | |
395 | ||
396 | void mac802154_unlock_table(struct net_device *dev) | |
397 | { | |
398 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
399 | ||
400 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
401 | ||
402 | mutex_unlock(&priv->sec_mtx); | |
403 | } |