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1 | /* This program is free software; you can redistribute it and/or modify | |
2 | * it under the terms of the GNU General Public License version 2 | |
3 | * as published by the Free Software Foundation. | |
4 | * | |
5 | * This program is distributed in the hope that it will be useful, | |
6 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
7 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
8 | * GNU General Public License for more details. | |
9 | * | |
10 | * Authors: | |
11 | * Alexander Aring <aar@pengutronix.de> | |
12 | * | |
13 | * Based on: net/mac80211/cfg.c | |
14 | */ | |
15 | ||
16 | #include <net/rtnetlink.h> | |
17 | #include <net/cfg802154.h> | |
18 | ||
19 | #include "ieee802154_i.h" | |
20 | #include "driver-ops.h" | |
21 | #include "cfg.h" | |
22 | ||
23 | static struct net_device * | |
24 | ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy, | |
25 | const char *name, | |
26 | unsigned char name_assign_type, int type) | |
27 | { | |
28 | struct ieee802154_local *local = wpan_phy_priv(wpan_phy); | |
29 | struct net_device *dev; | |
30 | ||
31 | rtnl_lock(); | |
32 | dev = ieee802154_if_add(local, name, name_assign_type, type, | |
33 | cpu_to_le64(0x0000000000000000ULL)); | |
34 | rtnl_unlock(); | |
35 | ||
36 | return dev; | |
37 | } | |
38 | ||
39 | static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy, | |
40 | struct net_device *dev) | |
41 | { | |
42 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
43 | ||
44 | ieee802154_if_remove(sdata); | |
45 | } | |
46 | ||
47 | #ifdef CONFIG_PM | |
48 | static int ieee802154_suspend(struct wpan_phy *wpan_phy) | |
49 | { | |
50 | struct ieee802154_local *local = wpan_phy_priv(wpan_phy); | |
51 | ||
52 | if (!local->open_count) | |
53 | goto suspend; | |
54 | ||
55 | ieee802154_stop_queue(&local->hw); | |
56 | synchronize_net(); | |
57 | ||
58 | /* stop hardware - this must stop RX */ | |
59 | ieee802154_stop_device(local); | |
60 | ||
61 | suspend: | |
62 | local->suspended = true; | |
63 | return 0; | |
64 | } | |
65 | ||
66 | static int ieee802154_resume(struct wpan_phy *wpan_phy) | |
67 | { | |
68 | struct ieee802154_local *local = wpan_phy_priv(wpan_phy); | |
69 | int ret; | |
70 | ||
71 | /* nothing to do if HW shouldn't run */ | |
72 | if (!local->open_count) | |
73 | goto wake_up; | |
74 | ||
75 | /* restart hardware */ | |
76 | ret = drv_start(local); | |
77 | if (ret) | |
78 | return ret; | |
79 | ||
80 | wake_up: | |
81 | ieee802154_wake_queue(&local->hw); | |
82 | local->suspended = false; | |
83 | return 0; | |
84 | } | |
85 | #else | |
86 | #define ieee802154_suspend NULL | |
87 | #define ieee802154_resume NULL | |
88 | #endif | |
89 | ||
90 | static int | |
91 | ieee802154_add_iface(struct wpan_phy *phy, const char *name, | |
92 | unsigned char name_assign_type, | |
93 | enum nl802154_iftype type, __le64 extended_addr) | |
94 | { | |
95 | struct ieee802154_local *local = wpan_phy_priv(phy); | |
96 | struct net_device *err; | |
97 | ||
98 | err = ieee802154_if_add(local, name, name_assign_type, type, | |
99 | extended_addr); | |
100 | return PTR_ERR_OR_ZERO(err); | |
101 | } | |
102 | ||
103 | static int | |
104 | ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev) | |
105 | { | |
106 | ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev)); | |
107 | ||
108 | return 0; | |
109 | } | |
110 | ||
111 | static int | |
112 | ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel) | |
113 | { | |
114 | struct ieee802154_local *local = wpan_phy_priv(wpan_phy); | |
115 | int ret; | |
116 | ||
117 | ASSERT_RTNL(); | |
118 | ||
119 | if (wpan_phy->current_page == page && | |
120 | wpan_phy->current_channel == channel) | |
121 | return 0; | |
122 | ||
123 | ret = drv_set_channel(local, page, channel); | |
124 | if (!ret) { | |
125 | wpan_phy->current_page = page; | |
126 | wpan_phy->current_channel = channel; | |
127 | } | |
128 | ||
129 | return ret; | |
130 | } | |
131 | ||
132 | static int | |
133 | ieee802154_set_cca_mode(struct wpan_phy *wpan_phy, | |
134 | const struct wpan_phy_cca *cca) | |
135 | { | |
136 | struct ieee802154_local *local = wpan_phy_priv(wpan_phy); | |
137 | int ret; | |
138 | ||
139 | ASSERT_RTNL(); | |
140 | ||
141 | if (wpan_phy_cca_cmp(&wpan_phy->cca, cca)) | |
142 | return 0; | |
143 | ||
144 | ret = drv_set_cca_mode(local, cca); | |
145 | if (!ret) | |
146 | wpan_phy->cca = *cca; | |
147 | ||
148 | return ret; | |
149 | } | |
150 | ||
151 | static int | |
152 | ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level) | |
153 | { | |
154 | struct ieee802154_local *local = wpan_phy_priv(wpan_phy); | |
155 | int ret; | |
156 | ||
157 | ASSERT_RTNL(); | |
158 | ||
159 | if (wpan_phy->cca_ed_level == ed_level) | |
160 | return 0; | |
161 | ||
162 | ret = drv_set_cca_ed_level(local, ed_level); | |
163 | if (!ret) | |
164 | wpan_phy->cca_ed_level = ed_level; | |
165 | ||
166 | return ret; | |
167 | } | |
168 | ||
169 | static int | |
170 | ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power) | |
171 | { | |
172 | struct ieee802154_local *local = wpan_phy_priv(wpan_phy); | |
173 | int ret; | |
174 | ||
175 | ASSERT_RTNL(); | |
176 | ||
177 | if (wpan_phy->transmit_power == power) | |
178 | return 0; | |
179 | ||
180 | ret = drv_set_tx_power(local, power); | |
181 | if (!ret) | |
182 | wpan_phy->transmit_power = power; | |
183 | ||
184 | return ret; | |
185 | } | |
186 | ||
187 | static int | |
188 | ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
189 | __le16 pan_id) | |
190 | { | |
191 | int ret; | |
192 | ||
193 | ASSERT_RTNL(); | |
194 | ||
195 | if (wpan_dev->pan_id == pan_id) | |
196 | return 0; | |
197 | ||
198 | ret = mac802154_wpan_update_llsec(wpan_dev->netdev); | |
199 | if (!ret) | |
200 | wpan_dev->pan_id = pan_id; | |
201 | ||
202 | return ret; | |
203 | } | |
204 | ||
205 | static int | |
206 | ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy, | |
207 | struct wpan_dev *wpan_dev, | |
208 | u8 min_be, u8 max_be) | |
209 | { | |
210 | ASSERT_RTNL(); | |
211 | ||
212 | wpan_dev->min_be = min_be; | |
213 | wpan_dev->max_be = max_be; | |
214 | return 0; | |
215 | } | |
216 | ||
217 | static int | |
218 | ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
219 | __le16 short_addr) | |
220 | { | |
221 | ASSERT_RTNL(); | |
222 | ||
223 | wpan_dev->short_addr = short_addr; | |
224 | return 0; | |
225 | } | |
226 | ||
227 | static int | |
228 | ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy, | |
229 | struct wpan_dev *wpan_dev, | |
230 | u8 max_csma_backoffs) | |
231 | { | |
232 | ASSERT_RTNL(); | |
233 | ||
234 | wpan_dev->csma_retries = max_csma_backoffs; | |
235 | return 0; | |
236 | } | |
237 | ||
238 | static int | |
239 | ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy, | |
240 | struct wpan_dev *wpan_dev, | |
241 | s8 max_frame_retries) | |
242 | { | |
243 | ASSERT_RTNL(); | |
244 | ||
245 | wpan_dev->frame_retries = max_frame_retries; | |
246 | return 0; | |
247 | } | |
248 | ||
249 | static int | |
250 | ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
251 | bool mode) | |
252 | { | |
253 | ASSERT_RTNL(); | |
254 | ||
255 | wpan_dev->lbt = mode; | |
256 | return 0; | |
257 | } | |
258 | ||
259 | static int | |
260 | ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy, | |
261 | struct wpan_dev *wpan_dev, bool ackreq) | |
262 | { | |
263 | ASSERT_RTNL(); | |
264 | ||
265 | wpan_dev->ackreq = ackreq; | |
266 | return 0; | |
267 | } | |
268 | ||
269 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL | |
270 | static void | |
271 | ieee802154_get_llsec_table(struct wpan_phy *wpan_phy, | |
272 | struct wpan_dev *wpan_dev, | |
273 | struct ieee802154_llsec_table **table) | |
274 | { | |
275 | struct net_device *dev = wpan_dev->netdev; | |
276 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
277 | ||
278 | *table = &sdata->sec.table; | |
279 | } | |
280 | ||
281 | static void | |
282 | ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy, | |
283 | struct wpan_dev *wpan_dev) | |
284 | { | |
285 | struct net_device *dev = wpan_dev->netdev; | |
286 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
287 | ||
288 | mutex_lock(&sdata->sec_mtx); | |
289 | } | |
290 | ||
291 | static void | |
292 | ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy, | |
293 | struct wpan_dev *wpan_dev) | |
294 | { | |
295 | struct net_device *dev = wpan_dev->netdev; | |
296 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
297 | ||
298 | mutex_unlock(&sdata->sec_mtx); | |
299 | } | |
300 | ||
301 | static int | |
302 | ieee802154_set_llsec_params(struct wpan_phy *wpan_phy, | |
303 | struct wpan_dev *wpan_dev, | |
304 | const struct ieee802154_llsec_params *params, | |
305 | int changed) | |
306 | { | |
307 | struct net_device *dev = wpan_dev->netdev; | |
308 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
309 | int res; | |
310 | ||
311 | mutex_lock(&sdata->sec_mtx); | |
312 | res = mac802154_llsec_set_params(&sdata->sec, params, changed); | |
313 | mutex_unlock(&sdata->sec_mtx); | |
314 | ||
315 | return res; | |
316 | } | |
317 | ||
318 | static int | |
319 | ieee802154_get_llsec_params(struct wpan_phy *wpan_phy, | |
320 | struct wpan_dev *wpan_dev, | |
321 | struct ieee802154_llsec_params *params) | |
322 | { | |
323 | struct net_device *dev = wpan_dev->netdev; | |
324 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
325 | int res; | |
326 | ||
327 | mutex_lock(&sdata->sec_mtx); | |
328 | res = mac802154_llsec_get_params(&sdata->sec, params); | |
329 | mutex_unlock(&sdata->sec_mtx); | |
330 | ||
331 | return res; | |
332 | } | |
333 | ||
334 | static int | |
335 | ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
336 | const struct ieee802154_llsec_key_id *id, | |
337 | const struct ieee802154_llsec_key *key) | |
338 | { | |
339 | struct net_device *dev = wpan_dev->netdev; | |
340 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
341 | int res; | |
342 | ||
343 | mutex_lock(&sdata->sec_mtx); | |
344 | res = mac802154_llsec_key_add(&sdata->sec, id, key); | |
345 | mutex_unlock(&sdata->sec_mtx); | |
346 | ||
347 | return res; | |
348 | } | |
349 | ||
350 | static int | |
351 | ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
352 | const struct ieee802154_llsec_key_id *id) | |
353 | { | |
354 | struct net_device *dev = wpan_dev->netdev; | |
355 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
356 | int res; | |
357 | ||
358 | mutex_lock(&sdata->sec_mtx); | |
359 | res = mac802154_llsec_key_del(&sdata->sec, id); | |
360 | mutex_unlock(&sdata->sec_mtx); | |
361 | ||
362 | return res; | |
363 | } | |
364 | ||
365 | static int | |
366 | ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
367 | const struct ieee802154_llsec_seclevel *sl) | |
368 | { | |
369 | struct net_device *dev = wpan_dev->netdev; | |
370 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
371 | int res; | |
372 | ||
373 | mutex_lock(&sdata->sec_mtx); | |
374 | res = mac802154_llsec_seclevel_add(&sdata->sec, sl); | |
375 | mutex_unlock(&sdata->sec_mtx); | |
376 | ||
377 | return res; | |
378 | } | |
379 | ||
380 | static int | |
381 | ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
382 | const struct ieee802154_llsec_seclevel *sl) | |
383 | { | |
384 | struct net_device *dev = wpan_dev->netdev; | |
385 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
386 | int res; | |
387 | ||
388 | mutex_lock(&sdata->sec_mtx); | |
389 | res = mac802154_llsec_seclevel_del(&sdata->sec, sl); | |
390 | mutex_unlock(&sdata->sec_mtx); | |
391 | ||
392 | return res; | |
393 | } | |
394 | ||
395 | static int | |
396 | ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
397 | const struct ieee802154_llsec_device *dev_desc) | |
398 | { | |
399 | struct net_device *dev = wpan_dev->netdev; | |
400 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
401 | int res; | |
402 | ||
403 | mutex_lock(&sdata->sec_mtx); | |
404 | res = mac802154_llsec_dev_add(&sdata->sec, dev_desc); | |
405 | mutex_unlock(&sdata->sec_mtx); | |
406 | ||
407 | return res; | |
408 | } | |
409 | ||
410 | static int | |
411 | ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
412 | __le64 extended_addr) | |
413 | { | |
414 | struct net_device *dev = wpan_dev->netdev; | |
415 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
416 | int res; | |
417 | ||
418 | mutex_lock(&sdata->sec_mtx); | |
419 | res = mac802154_llsec_dev_del(&sdata->sec, extended_addr); | |
420 | mutex_unlock(&sdata->sec_mtx); | |
421 | ||
422 | return res; | |
423 | } | |
424 | ||
425 | static int | |
426 | ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
427 | __le64 extended_addr, | |
428 | const struct ieee802154_llsec_device_key *key) | |
429 | { | |
430 | struct net_device *dev = wpan_dev->netdev; | |
431 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
432 | int res; | |
433 | ||
434 | mutex_lock(&sdata->sec_mtx); | |
435 | res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key); | |
436 | mutex_unlock(&sdata->sec_mtx); | |
437 | ||
438 | return res; | |
439 | } | |
440 | ||
441 | static int | |
442 | ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, | |
443 | __le64 extended_addr, | |
444 | const struct ieee802154_llsec_device_key *key) | |
445 | { | |
446 | struct net_device *dev = wpan_dev->netdev; | |
447 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
448 | int res; | |
449 | ||
450 | mutex_lock(&sdata->sec_mtx); | |
451 | res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key); | |
452 | mutex_unlock(&sdata->sec_mtx); | |
453 | ||
454 | return res; | |
455 | } | |
456 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ | |
457 | ||
458 | const struct cfg802154_ops mac802154_config_ops = { | |
459 | .add_virtual_intf_deprecated = ieee802154_add_iface_deprecated, | |
460 | .del_virtual_intf_deprecated = ieee802154_del_iface_deprecated, | |
461 | .suspend = ieee802154_suspend, | |
462 | .resume = ieee802154_resume, | |
463 | .add_virtual_intf = ieee802154_add_iface, | |
464 | .del_virtual_intf = ieee802154_del_iface, | |
465 | .set_channel = ieee802154_set_channel, | |
466 | .set_cca_mode = ieee802154_set_cca_mode, | |
467 | .set_cca_ed_level = ieee802154_set_cca_ed_level, | |
468 | .set_tx_power = ieee802154_set_tx_power, | |
469 | .set_pan_id = ieee802154_set_pan_id, | |
470 | .set_short_addr = ieee802154_set_short_addr, | |
471 | .set_backoff_exponent = ieee802154_set_backoff_exponent, | |
472 | .set_max_csma_backoffs = ieee802154_set_max_csma_backoffs, | |
473 | .set_max_frame_retries = ieee802154_set_max_frame_retries, | |
474 | .set_lbt_mode = ieee802154_set_lbt_mode, | |
475 | .set_ackreq_default = ieee802154_set_ackreq_default, | |
476 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL | |
477 | .get_llsec_table = ieee802154_get_llsec_table, | |
478 | .lock_llsec_table = ieee802154_lock_llsec_table, | |
479 | .unlock_llsec_table = ieee802154_unlock_llsec_table, | |
480 | /* TODO above */ | |
481 | .set_llsec_params = ieee802154_set_llsec_params, | |
482 | .get_llsec_params = ieee802154_get_llsec_params, | |
483 | .add_llsec_key = ieee802154_add_llsec_key, | |
484 | .del_llsec_key = ieee802154_del_llsec_key, | |
485 | .add_seclevel = ieee802154_add_seclevel, | |
486 | .del_seclevel = ieee802154_del_seclevel, | |
487 | .add_device = ieee802154_add_device, | |
488 | .del_device = ieee802154_del_device, | |
489 | .add_devkey = ieee802154_add_devkey, | |
490 | .del_devkey = ieee802154_del_devkey, | |
491 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ | |
492 | }; |