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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
17static struct net_device *
18ieee802154_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(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
33static 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
42static int ieee802154_suspend(struct wpan_phy *wpan_phy)
43{
44 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
45
46 if (!local->open_count)
47 goto suspend;
48
49 ieee802154_stop_queue(&local->hw);
50 synchronize_net();
51
52 /* stop hardware - this must stop RX */
53 ieee802154_stop_device(local);
54
55suspend:
56 local->suspended = true;
57 return 0;
58}
59
60static int ieee802154_resume(struct wpan_phy *wpan_phy)
61{
62 struct ieee802154_local *local = wpan_phy_priv(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);
71 if (ret)
72 return ret;
73
74wake_up:
75 ieee802154_wake_queue(&local->hw);
76 local->suspended = false;
77 return 0;
78}
79#else
80#define ieee802154_suspend NULL
81#define ieee802154_resume NULL
82#endif
83
84static int
85ieee802154_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(err);
95}
96
97static int
98ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev)
99{
100 ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev));
101
102 return 0;
103}
104
105static int
106ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel)
107{
108 struct ieee802154_local *local = wpan_phy_priv(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 ret = drv_set_channel(local, page, channel);
118 if (!ret) {
119 wpan_phy->current_page = page;
120 wpan_phy->current_channel = channel;
121 }
122
123 return ret;
124}
125
126static int
127ieee802154_set_cca_mode(struct wpan_phy *wpan_phy,
128 const struct wpan_phy_cca *cca)
129{
130 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
131 int ret;
132
133 ASSERT_RTNL();
134
135 if (wpan_phy_cca_cmp(&wpan_phy->cca, cca))
136 return 0;
137
138 ret = drv_set_cca_mode(local, cca);
139 if (!ret)
140 wpan_phy->cca = *cca;
141
142 return ret;
143}
144
145static int
146ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level)
147{
148 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
149 int ret;
150
151 ASSERT_RTNL();
152
153 if (wpan_phy->cca_ed_level == ed_level)
154 return 0;
155
156 ret = drv_set_cca_ed_level(local, ed_level);
157 if (!ret)
158 wpan_phy->cca_ed_level = ed_level;
159
160 return ret;
161}
162
163static int
164ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power)
165{
166 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
167 int ret;
168
169 ASSERT_RTNL();
170
171 if (wpan_phy->transmit_power == power)
172 return 0;
173
174 ret = drv_set_tx_power(local, power);
175 if (!ret)
176 wpan_phy->transmit_power = power;
177
178 return ret;
179}
180
181static int
182ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
183 __le16 pan_id)
184{
185 int ret;
186
187 ASSERT_RTNL();
188
189 if (wpan_dev->pan_id == pan_id)
190 return 0;
191
192 ret = mac802154_wpan_update_llsec(wpan_dev->netdev);
193 if (!ret)
194 wpan_dev->pan_id = pan_id;
195
196 return ret;
197}
198
199static int
200ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy,
201 struct wpan_dev *wpan_dev,
202 u8 min_be, u8 max_be)
203{
204 ASSERT_RTNL();
205
206 wpan_dev->min_be = min_be;
207 wpan_dev->max_be = max_be;
208 return 0;
209}
210
211static int
212ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
213 __le16 short_addr)
214{
215 ASSERT_RTNL();
216
217 wpan_dev->short_addr = short_addr;
218 return 0;
219}
220
221static int
222ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy,
223 struct wpan_dev *wpan_dev,
224 u8 max_csma_backoffs)
225{
226 ASSERT_RTNL();
227
228 wpan_dev->csma_retries = max_csma_backoffs;
229 return 0;
230}
231
232static int
233ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
234 struct wpan_dev *wpan_dev,
235 s8 max_frame_retries)
236{
237 ASSERT_RTNL();
238
239 wpan_dev->frame_retries = max_frame_retries;
240 return 0;
241}
242
243static int
244ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
245 bool mode)
246{
247 ASSERT_RTNL();
248
249 wpan_dev->lbt = mode;
250 return 0;
251}
252
253static int
254ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy,
255 struct wpan_dev *wpan_dev, bool ackreq)
256{
257 ASSERT_RTNL();
258
259 wpan_dev->ackreq = ackreq;
260 return 0;
261}
262
263#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
264static void
265ieee802154_get_llsec_table(struct wpan_phy *wpan_phy,
266 struct wpan_dev *wpan_dev,
267 struct ieee802154_llsec_table **table)
268{
269 struct net_device *dev = wpan_dev->netdev;
270 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
271
272 *table = &sdata->sec.table;
273}
274
275static void
276ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy,
277 struct wpan_dev *wpan_dev)
278{
279 struct net_device *dev = wpan_dev->netdev;
280 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
281
282 mutex_lock(&sdata->sec_mtx);
283}
284
285static void
286ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy,
287 struct wpan_dev *wpan_dev)
288{
289 struct net_device *dev = wpan_dev->netdev;
290 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
291
292 mutex_unlock(&sdata->sec_mtx);
293}
294
295static int
296ieee802154_set_llsec_params(struct wpan_phy *wpan_phy,
297 struct wpan_dev *wpan_dev,
298 const struct ieee802154_llsec_params *params,
299 int changed)
300{
301 struct net_device *dev = wpan_dev->netdev;
302 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
303 int res;
304
305 mutex_lock(&sdata->sec_mtx);
306 res = mac802154_llsec_set_params(&sdata->sec, params, changed);
307 mutex_unlock(&sdata->sec_mtx);
308
309 return res;
310}
311
312static int
313ieee802154_get_llsec_params(struct wpan_phy *wpan_phy,
314 struct wpan_dev *wpan_dev,
315 struct ieee802154_llsec_params *params)
316{
317 struct net_device *dev = wpan_dev->netdev;
318 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
319 int res;
320
321 mutex_lock(&sdata->sec_mtx);
322 res = mac802154_llsec_get_params(&sdata->sec, params);
323 mutex_unlock(&sdata->sec_mtx);
324
325 return res;
326}
327
328static int
329ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
330 const struct ieee802154_llsec_key_id *id,
331 const struct ieee802154_llsec_key *key)
332{
333 struct net_device *dev = wpan_dev->netdev;
334 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
335 int res;
336
337 mutex_lock(&sdata->sec_mtx);
338 res = mac802154_llsec_key_add(&sdata->sec, id, key);
339 mutex_unlock(&sdata->sec_mtx);
340
341 return res;
342}
343
344static int
345ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
346 const struct ieee802154_llsec_key_id *id)
347{
348 struct net_device *dev = wpan_dev->netdev;
349 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
350 int res;
351
352 mutex_lock(&sdata->sec_mtx);
353 res = mac802154_llsec_key_del(&sdata->sec, id);
354 mutex_unlock(&sdata->sec_mtx);
355
356 return res;
357}
358
359static int
360ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
361 const struct ieee802154_llsec_seclevel *sl)
362{
363 struct net_device *dev = wpan_dev->netdev;
364 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
365 int res;
366
367 mutex_lock(&sdata->sec_mtx);
368 res = mac802154_llsec_seclevel_add(&sdata->sec, sl);
369 mutex_unlock(&sdata->sec_mtx);
370
371 return res;
372}
373
374static int
375ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
376 const struct ieee802154_llsec_seclevel *sl)
377{
378 struct net_device *dev = wpan_dev->netdev;
379 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
380 int res;
381
382 mutex_lock(&sdata->sec_mtx);
383 res = mac802154_llsec_seclevel_del(&sdata->sec, sl);
384 mutex_unlock(&sdata->sec_mtx);
385
386 return res;
387}
388
389static int
390ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
391 const struct ieee802154_llsec_device *dev_desc)
392{
393 struct net_device *dev = wpan_dev->netdev;
394 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
395 int res;
396
397 mutex_lock(&sdata->sec_mtx);
398 res = mac802154_llsec_dev_add(&sdata->sec, dev_desc);
399 mutex_unlock(&sdata->sec_mtx);
400
401 return res;
402}
403
404static int
405ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
406 __le64 extended_addr)
407{
408 struct net_device *dev = wpan_dev->netdev;
409 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
410 int res;
411
412 mutex_lock(&sdata->sec_mtx);
413 res = mac802154_llsec_dev_del(&sdata->sec, extended_addr);
414 mutex_unlock(&sdata->sec_mtx);
415
416 return res;
417}
418
419static int
420ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
421 __le64 extended_addr,
422 const struct ieee802154_llsec_device_key *key)
423{
424 struct net_device *dev = wpan_dev->netdev;
425 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
426 int res;
427
428 mutex_lock(&sdata->sec_mtx);
429 res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key);
430 mutex_unlock(&sdata->sec_mtx);
431
432 return res;
433}
434
435static int
436ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
437 __le64 extended_addr,
438 const struct ieee802154_llsec_device_key *key)
439{
440 struct net_device *dev = wpan_dev->netdev;
441 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
442 int res;
443
444 mutex_lock(&sdata->sec_mtx);
445 res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key);
446 mutex_unlock(&sdata->sec_mtx);
447
448 return res;
449}
450#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
451
452const struct cfg802154_ops mac802154_config_ops = {
453 .add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
454 .del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
455 .suspend = ieee802154_suspend,
456 .resume = ieee802154_resume,
457 .add_virtual_intf = ieee802154_add_iface,
458 .del_virtual_intf = ieee802154_del_iface,
459 .set_channel = ieee802154_set_channel,
460 .set_cca_mode = ieee802154_set_cca_mode,
461 .set_cca_ed_level = ieee802154_set_cca_ed_level,
462 .set_tx_power = ieee802154_set_tx_power,
463 .set_pan_id = ieee802154_set_pan_id,
464 .set_short_addr = ieee802154_set_short_addr,
465 .set_backoff_exponent = ieee802154_set_backoff_exponent,
466 .set_max_csma_backoffs = ieee802154_set_max_csma_backoffs,
467 .set_max_frame_retries = ieee802154_set_max_frame_retries,
468 .set_lbt_mode = ieee802154_set_lbt_mode,
469 .set_ackreq_default = ieee802154_set_ackreq_default,
470#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
471 .get_llsec_table = ieee802154_get_llsec_table,
472 .lock_llsec_table = ieee802154_lock_llsec_table,
473 .unlock_llsec_table = ieee802154_unlock_llsec_table,
474 /* TODO above */
475 .set_llsec_params = ieee802154_set_llsec_params,
476 .get_llsec_params = ieee802154_get_llsec_params,
477 .add_llsec_key = ieee802154_add_llsec_key,
478 .del_llsec_key = ieee802154_del_llsec_key,
479 .add_seclevel = ieee802154_add_seclevel,
480 .del_seclevel = ieee802154_del_seclevel,
481 .add_device = ieee802154_add_device,
482 .del_device = ieee802154_del_device,
483 .add_devkey = ieee802154_add_devkey,
484 .del_devkey = ieee802154_del_devkey,
485#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
486};
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
17static struct net_device *
18ieee802154_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(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
33static 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
42static int ieee802154_suspend(struct wpan_phy *wpan_phy)
43{
44 struct ieee802154_local *local = wpan_phy_priv(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
55suspend:
56 local->suspended = true;
57 return 0;
58}
59
60static int ieee802154_resume(struct wpan_phy *wpan_phy)
61{
62 struct ieee802154_local *local = wpan_phy_priv(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, local->phy->filtering, &local->addr_filt);
71 if (ret)
72 return ret;
73
74wake_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
84static int
85ieee802154_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(err);
95}
96
97static int
98ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev)
99{
100 ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev));
101
102 return 0;
103}
104
105static int
106ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel)
107{
108 struct ieee802154_local *local = wpan_phy_priv(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(wpan_phy, page, channel);
126 }
127
128 return ret;
129}
130
131static int
132ieee802154_set_cca_mode(struct wpan_phy *wpan_phy,
133 const struct wpan_phy_cca *cca)
134{
135 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
136 int ret;
137
138 ASSERT_RTNL();
139
140 if (wpan_phy_cca_cmp(&wpan_phy->cca, 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
150static int
151ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level)
152{
153 struct ieee802154_local *local = wpan_phy_priv(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, ed_level);
162 if (!ret)
163 wpan_phy->cca_ed_level = ed_level;
164
165 return ret;
166}
167
168static int
169ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power)
170{
171 struct ieee802154_local *local = wpan_phy_priv(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, power);
180 if (!ret)
181 wpan_phy->transmit_power = power;
182
183 return ret;
184}
185
186static int
187ieee802154_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(wpan_dev->netdev);
198 if (!ret)
199 wpan_dev->pan_id = pan_id;
200
201 return ret;
202}
203
204static int
205ieee802154_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
216static int
217ieee802154_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
226static int
227ieee802154_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
237static int
238ieee802154_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
248static int
249ieee802154_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
258static int
259ieee802154_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
268static 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(request->wpan_dev);
274
275 ASSERT_RTNL();
276
277 return mac802154_trigger_scan_locked(sdata, request);
278}
279
280static int mac802154_abort_scan(struct wpan_phy *wpan_phy,
281 struct wpan_dev *wpan_dev)
282{
283 struct ieee802154_local *local = wpan_phy_priv(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
293static 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(request->wpan_dev);
299
300 ASSERT_RTNL();
301
302 return mac802154_send_beacons_locked(sdata, request);
303}
304
305static int mac802154_stop_beacons(struct wpan_phy *wpan_phy,
306 struct wpan_dev *wpan_dev)
307{
308 struct ieee802154_local *local = wpan_phy_priv(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
318static int mac802154_associate(struct wpan_phy *wpan_phy,
319 struct wpan_dev *wpan_dev,
320 struct ieee802154_addr *coord)
321{
322 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
323 u64 ceaddr = swab64((__force u64)coord->extended_addr);
324 struct ieee802154_sub_if_data *sdata;
325 struct ieee802154_pan_device *parent;
326 __le16 short_addr;
327 int ret;
328
329 ASSERT_RTNL();
330
331 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev);
332
333 if (wpan_dev->parent) {
334 dev_err(&sdata->dev->dev,
335 "Device %8phC is already associated\n", &ceaddr);
336 return -EPERM;
337 }
338
339 if (coord->mode == IEEE802154_SHORT_ADDRESSING)
340 return -EINVAL;
341
342 parent = kzalloc(sizeof(*parent), GFP_KERNEL);
343 if (!parent)
344 return -ENOMEM;
345
346 parent->pan_id = coord->pan_id;
347 parent->mode = coord->mode;
348 parent->extended_addr = coord->extended_addr;
349 parent->short_addr = cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST);
350
351 /* Set the PAN ID hardware address filter beforehand to avoid dropping
352 * the association response with a destination PAN ID field set to the
353 * "new" PAN ID.
354 */
355 if (local->hw.flags & IEEE802154_HW_AFILT) {
356 ret = drv_set_pan_id(local, coord->pan_id);
357 if (ret < 0)
358 goto free_parent;
359 }
360
361 ret = mac802154_perform_association(sdata, parent, &short_addr);
362 if (ret)
363 goto reset_panid;
364
365 if (local->hw.flags & IEEE802154_HW_AFILT) {
366 ret = drv_set_short_addr(local, short_addr);
367 if (ret < 0)
368 goto reset_panid;
369 }
370
371 wpan_dev->pan_id = coord->pan_id;
372 wpan_dev->short_addr = short_addr;
373 wpan_dev->parent = parent;
374
375 return 0;
376
377reset_panid:
378 if (local->hw.flags & IEEE802154_HW_AFILT)
379 drv_set_pan_id(local, cpu_to_le16(IEEE802154_PAN_ID_BROADCAST));
380
381free_parent:
382 kfree(parent);
383 return ret;
384}
385
386static int mac802154_disassociate_from_parent(struct wpan_phy *wpan_phy,
387 struct wpan_dev *wpan_dev)
388{
389 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
390 struct ieee802154_pan_device *child, *tmp;
391 struct ieee802154_sub_if_data *sdata;
392 unsigned int max_assoc;
393 u64 eaddr;
394 int ret;
395
396 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev);
397
398 /* Start by disassociating all the children and preventing new ones to
399 * attempt associations.
400 */
401 max_assoc = cfg802154_set_max_associations(wpan_dev, 0);
402 list_for_each_entry_safe(child, tmp, &wpan_dev->children, node) {
403 ret = mac802154_send_disassociation_notif(sdata, child,
404 IEEE802154_COORD_WISHES_DEVICE_TO_LEAVE);
405 if (ret) {
406 eaddr = swab64((__force u64)child->extended_addr);
407 dev_err(&sdata->dev->dev,
408 "Disassociation with %8phC may have failed (%d)\n",
409 &eaddr, ret);
410 }
411
412 list_del(&child->node);
413 }
414
415 ret = mac802154_send_disassociation_notif(sdata, wpan_dev->parent,
416 IEEE802154_DEVICE_WISHES_TO_LEAVE);
417 if (ret) {
418 eaddr = swab64((__force u64)wpan_dev->parent->extended_addr);
419 dev_err(&sdata->dev->dev,
420 "Disassociation from %8phC may have failed (%d)\n",
421 &eaddr, ret);
422 }
423
424 ret = 0;
425
426 kfree(wpan_dev->parent);
427 wpan_dev->parent = NULL;
428 wpan_dev->pan_id = cpu_to_le16(IEEE802154_PAN_ID_BROADCAST);
429 wpan_dev->short_addr = cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST);
430
431 if (local->hw.flags & IEEE802154_HW_AFILT) {
432 ret = drv_set_pan_id(local, wpan_dev->pan_id);
433 if (ret < 0)
434 goto reset_mac_assoc;
435
436 ret = drv_set_short_addr(local, wpan_dev->short_addr);
437 if (ret < 0)
438 goto reset_mac_assoc;
439 }
440
441reset_mac_assoc:
442 cfg802154_set_max_associations(wpan_dev, max_assoc);
443
444 return ret;
445}
446
447static int mac802154_disassociate_child(struct wpan_phy *wpan_phy,
448 struct wpan_dev *wpan_dev,
449 struct ieee802154_pan_device *child)
450{
451 struct ieee802154_sub_if_data *sdata;
452 int ret;
453
454 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev);
455
456 ret = mac802154_send_disassociation_notif(sdata, child,
457 IEEE802154_COORD_WISHES_DEVICE_TO_LEAVE);
458 if (ret)
459 return ret;
460
461 list_del(&child->node);
462 wpan_dev->nchildren--;
463 kfree(child);
464
465 return 0;
466}
467
468static int mac802154_disassociate(struct wpan_phy *wpan_phy,
469 struct wpan_dev *wpan_dev,
470 struct ieee802154_addr *target)
471{
472 u64 teaddr = swab64((__force u64)target->extended_addr);
473 struct ieee802154_pan_device *pan_device;
474
475 ASSERT_RTNL();
476
477 if (cfg802154_device_is_parent(wpan_dev, target))
478 return mac802154_disassociate_from_parent(wpan_phy, wpan_dev);
479
480 pan_device = cfg802154_device_is_child(wpan_dev, target);
481 if (pan_device)
482 return mac802154_disassociate_child(wpan_phy, wpan_dev,
483 pan_device);
484
485 dev_err(&wpan_dev->netdev->dev,
486 "Device %8phC is not associated with us\n", &teaddr);
487
488 return -EINVAL;
489}
490
491#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
492static void
493ieee802154_get_llsec_table(struct wpan_phy *wpan_phy,
494 struct wpan_dev *wpan_dev,
495 struct ieee802154_llsec_table **table)
496{
497 struct net_device *dev = wpan_dev->netdev;
498 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
499
500 *table = &sdata->sec.table;
501}
502
503static void
504ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy,
505 struct wpan_dev *wpan_dev)
506{
507 struct net_device *dev = wpan_dev->netdev;
508 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
509
510 mutex_lock(&sdata->sec_mtx);
511}
512
513static void
514ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy,
515 struct wpan_dev *wpan_dev)
516{
517 struct net_device *dev = wpan_dev->netdev;
518 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
519
520 mutex_unlock(&sdata->sec_mtx);
521}
522
523static int
524ieee802154_set_llsec_params(struct wpan_phy *wpan_phy,
525 struct wpan_dev *wpan_dev,
526 const struct ieee802154_llsec_params *params,
527 int changed)
528{
529 struct net_device *dev = wpan_dev->netdev;
530 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
531 int res;
532
533 mutex_lock(&sdata->sec_mtx);
534 res = mac802154_llsec_set_params(&sdata->sec, params, changed);
535 mutex_unlock(&sdata->sec_mtx);
536
537 return res;
538}
539
540static int
541ieee802154_get_llsec_params(struct wpan_phy *wpan_phy,
542 struct wpan_dev *wpan_dev,
543 struct ieee802154_llsec_params *params)
544{
545 struct net_device *dev = wpan_dev->netdev;
546 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
547 int res;
548
549 mutex_lock(&sdata->sec_mtx);
550 res = mac802154_llsec_get_params(&sdata->sec, params);
551 mutex_unlock(&sdata->sec_mtx);
552
553 return res;
554}
555
556static int
557ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
558 const struct ieee802154_llsec_key_id *id,
559 const struct ieee802154_llsec_key *key)
560{
561 struct net_device *dev = wpan_dev->netdev;
562 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
563 int res;
564
565 mutex_lock(&sdata->sec_mtx);
566 res = mac802154_llsec_key_add(&sdata->sec, id, key);
567 mutex_unlock(&sdata->sec_mtx);
568
569 return res;
570}
571
572static int
573ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
574 const struct ieee802154_llsec_key_id *id)
575{
576 struct net_device *dev = wpan_dev->netdev;
577 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
578 int res;
579
580 mutex_lock(&sdata->sec_mtx);
581 res = mac802154_llsec_key_del(&sdata->sec, id);
582 mutex_unlock(&sdata->sec_mtx);
583
584 return res;
585}
586
587static int
588ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
589 const struct ieee802154_llsec_seclevel *sl)
590{
591 struct net_device *dev = wpan_dev->netdev;
592 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
593 int res;
594
595 mutex_lock(&sdata->sec_mtx);
596 res = mac802154_llsec_seclevel_add(&sdata->sec, sl);
597 mutex_unlock(&sdata->sec_mtx);
598
599 return res;
600}
601
602static int
603ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
604 const struct ieee802154_llsec_seclevel *sl)
605{
606 struct net_device *dev = wpan_dev->netdev;
607 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
608 int res;
609
610 mutex_lock(&sdata->sec_mtx);
611 res = mac802154_llsec_seclevel_del(&sdata->sec, sl);
612 mutex_unlock(&sdata->sec_mtx);
613
614 return res;
615}
616
617static int
618ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
619 const struct ieee802154_llsec_device *dev_desc)
620{
621 struct net_device *dev = wpan_dev->netdev;
622 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
623 int res;
624
625 mutex_lock(&sdata->sec_mtx);
626 res = mac802154_llsec_dev_add(&sdata->sec, dev_desc);
627 mutex_unlock(&sdata->sec_mtx);
628
629 return res;
630}
631
632static int
633ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
634 __le64 extended_addr)
635{
636 struct net_device *dev = wpan_dev->netdev;
637 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
638 int res;
639
640 mutex_lock(&sdata->sec_mtx);
641 res = mac802154_llsec_dev_del(&sdata->sec, extended_addr);
642 mutex_unlock(&sdata->sec_mtx);
643
644 return res;
645}
646
647static int
648ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
649 __le64 extended_addr,
650 const struct ieee802154_llsec_device_key *key)
651{
652 struct net_device *dev = wpan_dev->netdev;
653 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
654 int res;
655
656 mutex_lock(&sdata->sec_mtx);
657 res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key);
658 mutex_unlock(&sdata->sec_mtx);
659
660 return res;
661}
662
663static int
664ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
665 __le64 extended_addr,
666 const struct ieee802154_llsec_device_key *key)
667{
668 struct net_device *dev = wpan_dev->netdev;
669 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
670 int res;
671
672 mutex_lock(&sdata->sec_mtx);
673 res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key);
674 mutex_unlock(&sdata->sec_mtx);
675
676 return res;
677}
678#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
679
680const struct cfg802154_ops mac802154_config_ops = {
681 .add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
682 .del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
683 .suspend = ieee802154_suspend,
684 .resume = ieee802154_resume,
685 .add_virtual_intf = ieee802154_add_iface,
686 .del_virtual_intf = ieee802154_del_iface,
687 .set_channel = ieee802154_set_channel,
688 .set_cca_mode = ieee802154_set_cca_mode,
689 .set_cca_ed_level = ieee802154_set_cca_ed_level,
690 .set_tx_power = ieee802154_set_tx_power,
691 .set_pan_id = ieee802154_set_pan_id,
692 .set_short_addr = ieee802154_set_short_addr,
693 .set_backoff_exponent = ieee802154_set_backoff_exponent,
694 .set_max_csma_backoffs = ieee802154_set_max_csma_backoffs,
695 .set_max_frame_retries = ieee802154_set_max_frame_retries,
696 .set_lbt_mode = ieee802154_set_lbt_mode,
697 .set_ackreq_default = ieee802154_set_ackreq_default,
698 .trigger_scan = mac802154_trigger_scan,
699 .abort_scan = mac802154_abort_scan,
700 .send_beacons = mac802154_send_beacons,
701 .stop_beacons = mac802154_stop_beacons,
702 .associate = mac802154_associate,
703 .disassociate = mac802154_disassociate,
704#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
705 .get_llsec_table = ieee802154_get_llsec_table,
706 .lock_llsec_table = ieee802154_lock_llsec_table,
707 .unlock_llsec_table = ieee802154_unlock_llsec_table,
708 /* TODO above */
709 .set_llsec_params = ieee802154_set_llsec_params,
710 .get_llsec_params = ieee802154_get_llsec_params,
711 .add_llsec_key = ieee802154_add_llsec_key,
712 .del_llsec_key = ieee802154_del_llsec_key,
713 .add_seclevel = ieee802154_add_seclevel,
714 .del_seclevel = ieee802154_del_seclevel,
715 .add_device = ieee802154_add_device,
716 .del_device = ieee802154_del_device,
717 .add_devkey = ieee802154_add_devkey,
718 .del_devkey = ieee802154_del_devkey,
719#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
720};