1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * |
4 | * Authors: |
5 | * Alexander Aring <aar@pengutronix.de> |
6 | * |
7 | * Based on: net/mac80211/cfg.c |
8 | */ |
9 | |
10 | #include <net/rtnetlink.h> |
11 | #include <net/cfg802154.h> |
12 | |
13 | #include "ieee802154_i.h" |
14 | #include "driver-ops.h" |
15 | #include "cfg.h" |
16 | |
17 | static struct net_device * |
18 | ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy, |
19 | const char *name, |
20 | unsigned char name_assign_type, int type) |
21 | { |
22 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
23 | struct net_device *dev; |
24 | |
25 | rtnl_lock(); |
26 | dev = ieee802154_if_add(local, name, name_assign_type, type, |
27 | cpu_to_le64(0x0000000000000000ULL)); |
28 | rtnl_unlock(); |
29 | |
30 | return dev; |
31 | } |
32 | |
33 | static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy, |
34 | struct net_device *dev) |
35 | { |
36 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
37 | |
38 | ieee802154_if_remove(sdata); |
39 | } |
40 | |
41 | #ifdef CONFIG_PM |
42 | static int ieee802154_suspend(struct wpan_phy *wpan_phy) |
43 | { |
44 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
45 | |
46 | if (!local->open_count) |
47 | goto suspend; |
48 | |
49 | ieee802154_sync_and_hold_queue(local); |
50 | synchronize_net(); |
51 | |
52 | /* stop hardware - this must stop RX */ |
53 | ieee802154_stop_device(local); |
54 | |
55 | suspend: |
56 | local->suspended = true; |
57 | return 0; |
58 | } |
59 | |
60 | static int ieee802154_resume(struct wpan_phy *wpan_phy) |
61 | { |
62 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
63 | int ret; |
64 | |
65 | /* nothing to do if HW shouldn't run */ |
66 | if (!local->open_count) |
67 | goto wake_up; |
68 | |
69 | /* restart hardware */ |
70 | ret = drv_start(local, level: local->phy->filtering, addr_filt: &local->addr_filt); |
71 | if (ret) |
72 | return ret; |
73 | |
74 | wake_up: |
75 | ieee802154_release_queue(local); |
76 | local->suspended = false; |
77 | return 0; |
78 | } |
79 | #else |
80 | #define ieee802154_suspend NULL |
81 | #define ieee802154_resume NULL |
82 | #endif |
83 | |
84 | static int |
85 | ieee802154_add_iface(struct wpan_phy *phy, const char *name, |
86 | unsigned char name_assign_type, |
87 | enum nl802154_iftype type, __le64 extended_addr) |
88 | { |
89 | struct ieee802154_local *local = wpan_phy_priv(phy); |
90 | struct net_device *err; |
91 | |
92 | err = ieee802154_if_add(local, name, name_assign_type, type, |
93 | extended_addr); |
94 | return PTR_ERR_OR_ZERO(ptr: err); |
95 | } |
96 | |
97 | static int |
98 | ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev) |
99 | { |
100 | ieee802154_if_remove(sdata: IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev)); |
101 | |
102 | return 0; |
103 | } |
104 | |
105 | static int |
106 | ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel) |
107 | { |
108 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
109 | int ret; |
110 | |
111 | ASSERT_RTNL(); |
112 | |
113 | if (wpan_phy->current_page == page && |
114 | wpan_phy->current_channel == channel) |
115 | return 0; |
116 | |
117 | /* Refuse to change channels during scanning or beaconing */ |
118 | if (mac802154_is_scanning(local) || mac802154_is_beaconing(local)) |
119 | return -EBUSY; |
120 | |
121 | ret = drv_set_channel(local, page, channel); |
122 | if (!ret) { |
123 | wpan_phy->current_page = page; |
124 | wpan_phy->current_channel = channel; |
125 | ieee802154_configure_durations(phy: wpan_phy, page, channel); |
126 | } |
127 | |
128 | return ret; |
129 | } |
130 | |
131 | static int |
132 | ieee802154_set_cca_mode(struct wpan_phy *wpan_phy, |
133 | const struct wpan_phy_cca *cca) |
134 | { |
135 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
136 | int ret; |
137 | |
138 | ASSERT_RTNL(); |
139 | |
140 | if (wpan_phy_cca_cmp(a: &wpan_phy->cca, b: cca)) |
141 | return 0; |
142 | |
143 | ret = drv_set_cca_mode(local, cca); |
144 | if (!ret) |
145 | wpan_phy->cca = *cca; |
146 | |
147 | return ret; |
148 | } |
149 | |
150 | static int |
151 | ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level) |
152 | { |
153 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
154 | int ret; |
155 | |
156 | ASSERT_RTNL(); |
157 | |
158 | if (wpan_phy->cca_ed_level == ed_level) |
159 | return 0; |
160 | |
161 | ret = drv_set_cca_ed_level(local, mbm: ed_level); |
162 | if (!ret) |
163 | wpan_phy->cca_ed_level = ed_level; |
164 | |
165 | return ret; |
166 | } |
167 | |
168 | static int |
169 | ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power) |
170 | { |
171 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
172 | int ret; |
173 | |
174 | ASSERT_RTNL(); |
175 | |
176 | if (wpan_phy->transmit_power == power) |
177 | return 0; |
178 | |
179 | ret = drv_set_tx_power(local, mbm: power); |
180 | if (!ret) |
181 | wpan_phy->transmit_power = power; |
182 | |
183 | return ret; |
184 | } |
185 | |
186 | static int |
187 | ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
188 | __le16 pan_id) |
189 | { |
190 | int ret; |
191 | |
192 | ASSERT_RTNL(); |
193 | |
194 | if (wpan_dev->pan_id == pan_id) |
195 | return 0; |
196 | |
197 | ret = mac802154_wpan_update_llsec(dev: wpan_dev->netdev); |
198 | if (!ret) |
199 | wpan_dev->pan_id = pan_id; |
200 | |
201 | return ret; |
202 | } |
203 | |
204 | static int |
205 | ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy, |
206 | struct wpan_dev *wpan_dev, |
207 | u8 min_be, u8 max_be) |
208 | { |
209 | ASSERT_RTNL(); |
210 | |
211 | wpan_dev->min_be = min_be; |
212 | wpan_dev->max_be = max_be; |
213 | return 0; |
214 | } |
215 | |
216 | static int |
217 | ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
218 | __le16 short_addr) |
219 | { |
220 | ASSERT_RTNL(); |
221 | |
222 | wpan_dev->short_addr = short_addr; |
223 | return 0; |
224 | } |
225 | |
226 | static int |
227 | ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy, |
228 | struct wpan_dev *wpan_dev, |
229 | u8 max_csma_backoffs) |
230 | { |
231 | ASSERT_RTNL(); |
232 | |
233 | wpan_dev->csma_retries = max_csma_backoffs; |
234 | return 0; |
235 | } |
236 | |
237 | static int |
238 | ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy, |
239 | struct wpan_dev *wpan_dev, |
240 | s8 max_frame_retries) |
241 | { |
242 | ASSERT_RTNL(); |
243 | |
244 | wpan_dev->frame_retries = max_frame_retries; |
245 | return 0; |
246 | } |
247 | |
248 | static int |
249 | ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
250 | bool mode) |
251 | { |
252 | ASSERT_RTNL(); |
253 | |
254 | wpan_dev->lbt = mode; |
255 | return 0; |
256 | } |
257 | |
258 | static int |
259 | ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy, |
260 | struct wpan_dev *wpan_dev, bool ackreq) |
261 | { |
262 | ASSERT_RTNL(); |
263 | |
264 | wpan_dev->ackreq = ackreq; |
265 | return 0; |
266 | } |
267 | |
268 | static int mac802154_trigger_scan(struct wpan_phy *wpan_phy, |
269 | struct cfg802154_scan_request *request) |
270 | { |
271 | struct ieee802154_sub_if_data *sdata; |
272 | |
273 | sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev: request->wpan_dev); |
274 | |
275 | ASSERT_RTNL(); |
276 | |
277 | return mac802154_trigger_scan_locked(sdata, request); |
278 | } |
279 | |
280 | static int mac802154_abort_scan(struct wpan_phy *wpan_phy, |
281 | struct wpan_dev *wpan_dev) |
282 | { |
283 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
284 | struct ieee802154_sub_if_data *sdata; |
285 | |
286 | sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev); |
287 | |
288 | ASSERT_RTNL(); |
289 | |
290 | return mac802154_abort_scan_locked(local, sdata); |
291 | } |
292 | |
293 | static int mac802154_send_beacons(struct wpan_phy *wpan_phy, |
294 | struct cfg802154_beacon_request *request) |
295 | { |
296 | struct ieee802154_sub_if_data *sdata; |
297 | |
298 | sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev: request->wpan_dev); |
299 | |
300 | ASSERT_RTNL(); |
301 | |
302 | return mac802154_send_beacons_locked(sdata, request); |
303 | } |
304 | |
305 | static int mac802154_stop_beacons(struct wpan_phy *wpan_phy, |
306 | struct wpan_dev *wpan_dev) |
307 | { |
308 | struct ieee802154_local *local = wpan_phy_priv(phy: wpan_phy); |
309 | struct ieee802154_sub_if_data *sdata; |
310 | |
311 | sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev); |
312 | |
313 | ASSERT_RTNL(); |
314 | |
315 | return mac802154_stop_beacons_locked(local, sdata); |
316 | } |
317 | |
318 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL |
319 | static void |
320 | ieee802154_get_llsec_table(struct wpan_phy *wpan_phy, |
321 | struct wpan_dev *wpan_dev, |
322 | struct ieee802154_llsec_table **table) |
323 | { |
324 | struct net_device *dev = wpan_dev->netdev; |
325 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
326 | |
327 | *table = &sdata->sec.table; |
328 | } |
329 | |
330 | static void |
331 | ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy, |
332 | struct wpan_dev *wpan_dev) |
333 | { |
334 | struct net_device *dev = wpan_dev->netdev; |
335 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
336 | |
337 | mutex_lock(&sdata->sec_mtx); |
338 | } |
339 | |
340 | static void |
341 | ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy, |
342 | struct wpan_dev *wpan_dev) |
343 | { |
344 | struct net_device *dev = wpan_dev->netdev; |
345 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
346 | |
347 | mutex_unlock(lock: &sdata->sec_mtx); |
348 | } |
349 | |
350 | static int |
351 | ieee802154_set_llsec_params(struct wpan_phy *wpan_phy, |
352 | struct wpan_dev *wpan_dev, |
353 | const struct ieee802154_llsec_params *params, |
354 | int changed) |
355 | { |
356 | struct net_device *dev = wpan_dev->netdev; |
357 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
358 | int res; |
359 | |
360 | mutex_lock(&sdata->sec_mtx); |
361 | res = mac802154_llsec_set_params(sec: &sdata->sec, params, changed); |
362 | mutex_unlock(lock: &sdata->sec_mtx); |
363 | |
364 | return res; |
365 | } |
366 | |
367 | static int |
368 | ieee802154_get_llsec_params(struct wpan_phy *wpan_phy, |
369 | struct wpan_dev *wpan_dev, |
370 | struct ieee802154_llsec_params *params) |
371 | { |
372 | struct net_device *dev = wpan_dev->netdev; |
373 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
374 | int res; |
375 | |
376 | mutex_lock(&sdata->sec_mtx); |
377 | res = mac802154_llsec_get_params(sec: &sdata->sec, params); |
378 | mutex_unlock(lock: &sdata->sec_mtx); |
379 | |
380 | return res; |
381 | } |
382 | |
383 | static int |
384 | ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
385 | const struct ieee802154_llsec_key_id *id, |
386 | const struct ieee802154_llsec_key *key) |
387 | { |
388 | struct net_device *dev = wpan_dev->netdev; |
389 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
390 | int res; |
391 | |
392 | mutex_lock(&sdata->sec_mtx); |
393 | res = mac802154_llsec_key_add(sec: &sdata->sec, id, key); |
394 | mutex_unlock(lock: &sdata->sec_mtx); |
395 | |
396 | return res; |
397 | } |
398 | |
399 | static int |
400 | ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
401 | const struct ieee802154_llsec_key_id *id) |
402 | { |
403 | struct net_device *dev = wpan_dev->netdev; |
404 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
405 | int res; |
406 | |
407 | mutex_lock(&sdata->sec_mtx); |
408 | res = mac802154_llsec_key_del(sec: &sdata->sec, key: id); |
409 | mutex_unlock(lock: &sdata->sec_mtx); |
410 | |
411 | return res; |
412 | } |
413 | |
414 | static int |
415 | ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
416 | const struct ieee802154_llsec_seclevel *sl) |
417 | { |
418 | struct net_device *dev = wpan_dev->netdev; |
419 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
420 | int res; |
421 | |
422 | mutex_lock(&sdata->sec_mtx); |
423 | res = mac802154_llsec_seclevel_add(sec: &sdata->sec, sl); |
424 | mutex_unlock(lock: &sdata->sec_mtx); |
425 | |
426 | return res; |
427 | } |
428 | |
429 | static int |
430 | ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
431 | const struct ieee802154_llsec_seclevel *sl) |
432 | { |
433 | struct net_device *dev = wpan_dev->netdev; |
434 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
435 | int res; |
436 | |
437 | mutex_lock(&sdata->sec_mtx); |
438 | res = mac802154_llsec_seclevel_del(sec: &sdata->sec, sl); |
439 | mutex_unlock(lock: &sdata->sec_mtx); |
440 | |
441 | return res; |
442 | } |
443 | |
444 | static int |
445 | ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
446 | const struct ieee802154_llsec_device *dev_desc) |
447 | { |
448 | struct net_device *dev = wpan_dev->netdev; |
449 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
450 | int res; |
451 | |
452 | mutex_lock(&sdata->sec_mtx); |
453 | res = mac802154_llsec_dev_add(sec: &sdata->sec, dev: dev_desc); |
454 | mutex_unlock(lock: &sdata->sec_mtx); |
455 | |
456 | return res; |
457 | } |
458 | |
459 | static int |
460 | ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
461 | __le64 extended_addr) |
462 | { |
463 | struct net_device *dev = wpan_dev->netdev; |
464 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
465 | int res; |
466 | |
467 | mutex_lock(&sdata->sec_mtx); |
468 | res = mac802154_llsec_dev_del(sec: &sdata->sec, device_addr: extended_addr); |
469 | mutex_unlock(lock: &sdata->sec_mtx); |
470 | |
471 | return res; |
472 | } |
473 | |
474 | static int |
475 | ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
476 | __le64 extended_addr, |
477 | const struct ieee802154_llsec_device_key *key) |
478 | { |
479 | struct net_device *dev = wpan_dev->netdev; |
480 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
481 | int res; |
482 | |
483 | mutex_lock(&sdata->sec_mtx); |
484 | res = mac802154_llsec_devkey_add(sec: &sdata->sec, dev_addr: extended_addr, key); |
485 | mutex_unlock(lock: &sdata->sec_mtx); |
486 | |
487 | return res; |
488 | } |
489 | |
490 | static int |
491 | ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, |
492 | __le64 extended_addr, |
493 | const struct ieee802154_llsec_device_key *key) |
494 | { |
495 | struct net_device *dev = wpan_dev->netdev; |
496 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
497 | int res; |
498 | |
499 | mutex_lock(&sdata->sec_mtx); |
500 | res = mac802154_llsec_devkey_del(sec: &sdata->sec, dev_addr: extended_addr, key); |
501 | mutex_unlock(lock: &sdata->sec_mtx); |
502 | |
503 | return res; |
504 | } |
505 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ |
506 | |
507 | const struct cfg802154_ops mac802154_config_ops = { |
508 | .add_virtual_intf_deprecated = ieee802154_add_iface_deprecated, |
509 | .del_virtual_intf_deprecated = ieee802154_del_iface_deprecated, |
510 | .suspend = ieee802154_suspend, |
511 | .resume = ieee802154_resume, |
512 | .add_virtual_intf = ieee802154_add_iface, |
513 | .del_virtual_intf = ieee802154_del_iface, |
514 | .set_channel = ieee802154_set_channel, |
515 | .set_cca_mode = ieee802154_set_cca_mode, |
516 | .set_cca_ed_level = ieee802154_set_cca_ed_level, |
517 | .set_tx_power = ieee802154_set_tx_power, |
518 | .set_pan_id = ieee802154_set_pan_id, |
519 | .set_short_addr = ieee802154_set_short_addr, |
520 | .set_backoff_exponent = ieee802154_set_backoff_exponent, |
521 | .set_max_csma_backoffs = ieee802154_set_max_csma_backoffs, |
522 | .set_max_frame_retries = ieee802154_set_max_frame_retries, |
523 | .set_lbt_mode = ieee802154_set_lbt_mode, |
524 | .set_ackreq_default = ieee802154_set_ackreq_default, |
525 | .trigger_scan = mac802154_trigger_scan, |
526 | .abort_scan = mac802154_abort_scan, |
527 | .send_beacons = mac802154_send_beacons, |
528 | .stop_beacons = mac802154_stop_beacons, |
529 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL |
530 | .get_llsec_table = ieee802154_get_llsec_table, |
531 | .lock_llsec_table = ieee802154_lock_llsec_table, |
532 | .unlock_llsec_table = ieee802154_unlock_llsec_table, |
533 | /* TODO above */ |
534 | .set_llsec_params = ieee802154_set_llsec_params, |
535 | .get_llsec_params = ieee802154_get_llsec_params, |
536 | .add_llsec_key = ieee802154_add_llsec_key, |
537 | .del_llsec_key = ieee802154_del_llsec_key, |
538 | .add_seclevel = ieee802154_add_seclevel, |
539 | .del_seclevel = ieee802154_del_seclevel, |
540 | .add_device = ieee802154_add_device, |
541 | .del_device = ieee802154_del_device, |
542 | .add_devkey = ieee802154_add_devkey, |
543 | .del_devkey = ieee802154_del_devkey, |
544 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ |
545 | }; |
546 | |