1 // SPDX-License-Identifier: GPL-2.0-only
5 * Alexander Aring <aar@pengutronix.de>
7 * Based on: net/mac80211/cfg.c
10 #include <net/rtnetlink.h>
11 #include <net/cfg802154.h>
13 #include "ieee802154_i.h"
14 #include "driver-ops.h"
17 static struct net_device *
18 ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy,
20 unsigned char name_assign_type, int type)
22 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
23 struct net_device *dev;
26 dev = ieee802154_if_add(local, name, name_assign_type, type,
27 cpu_to_le64(0x0000000000000000ULL));
33 static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy,
34 struct net_device *dev)
36 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
38 ieee802154_if_remove(sdata);
42 static int ieee802154_suspend(struct wpan_phy *wpan_phy)
44 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
46 if (!local->open_count)
49 ieee802154_sync_and_hold_queue(local);
52 /* stop hardware - this must stop RX */
53 ieee802154_stop_device(local);
56 local->suspended = true;
60 static int ieee802154_resume(struct wpan_phy *wpan_phy)
62 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
65 /* nothing to do if HW shouldn't run */
66 if (!local->open_count)
69 /* restart hardware */
70 ret = drv_start(local, local->phy->filtering, &local->addr_filt);
75 ieee802154_release_queue(local);
76 local->suspended = false;
80 #define ieee802154_suspend NULL
81 #define ieee802154_resume NULL
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)
89 struct ieee802154_local *local = wpan_phy_priv(phy);
90 struct net_device *err;
92 err = ieee802154_if_add(local, name, name_assign_type, type,
94 return PTR_ERR_OR_ZERO(err);
98 ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev)
100 ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev));
106 ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel)
108 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
113 if (wpan_phy->current_page == page &&
114 wpan_phy->current_channel == channel)
117 /* Refuse to change channels during scanning or beaconing */
118 if (mac802154_is_scanning(local) || mac802154_is_beaconing(local))
121 ret = drv_set_channel(local, page, channel);
123 wpan_phy->current_page = page;
124 wpan_phy->current_channel = channel;
125 ieee802154_configure_durations(wpan_phy, page, channel);
132 ieee802154_set_cca_mode(struct wpan_phy *wpan_phy,
133 const struct wpan_phy_cca *cca)
135 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
140 if (wpan_phy_cca_cmp(&wpan_phy->cca, cca))
143 ret = drv_set_cca_mode(local, cca);
145 wpan_phy->cca = *cca;
151 ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level)
153 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
158 if (wpan_phy->cca_ed_level == ed_level)
161 ret = drv_set_cca_ed_level(local, ed_level);
163 wpan_phy->cca_ed_level = ed_level;
169 ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power)
171 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
176 if (wpan_phy->transmit_power == power)
179 ret = drv_set_tx_power(local, power);
181 wpan_phy->transmit_power = power;
187 ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
194 if (wpan_dev->pan_id == pan_id)
197 ret = mac802154_wpan_update_llsec(wpan_dev->netdev);
199 wpan_dev->pan_id = pan_id;
205 ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy,
206 struct wpan_dev *wpan_dev,
207 u8 min_be, u8 max_be)
211 wpan_dev->min_be = min_be;
212 wpan_dev->max_be = max_be;
217 ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
222 wpan_dev->short_addr = short_addr;
227 ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy,
228 struct wpan_dev *wpan_dev,
229 u8 max_csma_backoffs)
233 wpan_dev->csma_retries = max_csma_backoffs;
238 ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
239 struct wpan_dev *wpan_dev,
240 s8 max_frame_retries)
244 wpan_dev->frame_retries = max_frame_retries;
249 ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
254 wpan_dev->lbt = mode;
259 ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy,
260 struct wpan_dev *wpan_dev, bool ackreq)
264 wpan_dev->ackreq = ackreq;
268 static int mac802154_trigger_scan(struct wpan_phy *wpan_phy,
269 struct cfg802154_scan_request *request)
271 struct ieee802154_sub_if_data *sdata;
273 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(request->wpan_dev);
277 return mac802154_trigger_scan_locked(sdata, request);
280 static int mac802154_abort_scan(struct wpan_phy *wpan_phy,
281 struct wpan_dev *wpan_dev)
283 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
284 struct ieee802154_sub_if_data *sdata;
286 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev);
290 return mac802154_abort_scan_locked(local, sdata);
293 static int mac802154_send_beacons(struct wpan_phy *wpan_phy,
294 struct cfg802154_beacon_request *request)
296 struct ieee802154_sub_if_data *sdata;
298 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(request->wpan_dev);
302 return mac802154_send_beacons_locked(sdata, request);
305 static int mac802154_stop_beacons(struct wpan_phy *wpan_phy,
306 struct wpan_dev *wpan_dev)
308 struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
309 struct ieee802154_sub_if_data *sdata;
311 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev);
315 return mac802154_stop_beacons_locked(local, sdata);
318 static int mac802154_associate(struct wpan_phy *wpan_phy,
319 struct wpan_dev *wpan_dev,
320 struct ieee802154_addr *coord)
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;
331 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev);
333 if (wpan_dev->parent) {
334 dev_err(&sdata->dev->dev,
335 "Device %8phC is already associated\n", &ceaddr);
339 if (coord->mode == IEEE802154_SHORT_ADDRESSING)
342 parent = kzalloc(sizeof(*parent), GFP_KERNEL);
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);
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
355 if (local->hw.flags & IEEE802154_HW_AFILT) {
356 ret = drv_set_pan_id(local, coord->pan_id);
361 ret = mac802154_perform_association(sdata, parent, &short_addr);
365 if (local->hw.flags & IEEE802154_HW_AFILT) {
366 ret = drv_set_short_addr(local, short_addr);
371 wpan_dev->pan_id = coord->pan_id;
372 wpan_dev->short_addr = short_addr;
373 wpan_dev->parent = parent;
378 if (local->hw.flags & IEEE802154_HW_AFILT)
379 drv_set_pan_id(local, cpu_to_le16(IEEE802154_PAN_ID_BROADCAST));
386 static int mac802154_disassociate_from_parent(struct wpan_phy *wpan_phy,
387 struct wpan_dev *wpan_dev)
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;
396 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev);
398 /* Start by disassociating all the children and preventing new ones to
399 * attempt associations.
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);
406 eaddr = swab64((__force u64)child->extended_addr);
407 dev_err(&sdata->dev->dev,
408 "Disassociation with %8phC may have failed (%d)\n",
412 list_del(&child->node);
415 ret = mac802154_send_disassociation_notif(sdata, wpan_dev->parent,
416 IEEE802154_DEVICE_WISHES_TO_LEAVE);
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",
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);
431 if (local->hw.flags & IEEE802154_HW_AFILT) {
432 ret = drv_set_pan_id(local, wpan_dev->pan_id);
434 goto reset_mac_assoc;
436 ret = drv_set_short_addr(local, wpan_dev->short_addr);
438 goto reset_mac_assoc;
442 cfg802154_set_max_associations(wpan_dev, max_assoc);
447 static int mac802154_disassociate_child(struct wpan_phy *wpan_phy,
448 struct wpan_dev *wpan_dev,
449 struct ieee802154_pan_device *child)
451 struct ieee802154_sub_if_data *sdata;
454 sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev);
456 ret = mac802154_send_disassociation_notif(sdata, child,
457 IEEE802154_COORD_WISHES_DEVICE_TO_LEAVE);
461 list_del(&child->node);
462 wpan_dev->nchildren--;
468 static int mac802154_disassociate(struct wpan_phy *wpan_phy,
469 struct wpan_dev *wpan_dev,
470 struct ieee802154_addr *target)
472 u64 teaddr = swab64((__force u64)target->extended_addr);
473 struct ieee802154_pan_device *pan_device;
477 if (cfg802154_device_is_parent(wpan_dev, target))
478 return mac802154_disassociate_from_parent(wpan_phy, wpan_dev);
480 pan_device = cfg802154_device_is_child(wpan_dev, target);
482 return mac802154_disassociate_child(wpan_phy, wpan_dev,
485 dev_err(&wpan_dev->netdev->dev,
486 "Device %8phC is not associated with us\n", &teaddr);
491 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
493 ieee802154_get_llsec_table(struct wpan_phy *wpan_phy,
494 struct wpan_dev *wpan_dev,
495 struct ieee802154_llsec_table **table)
497 struct net_device *dev = wpan_dev->netdev;
498 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
500 *table = &sdata->sec.table;
504 ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy,
505 struct wpan_dev *wpan_dev)
507 struct net_device *dev = wpan_dev->netdev;
508 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
510 mutex_lock(&sdata->sec_mtx);
514 ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy,
515 struct wpan_dev *wpan_dev)
517 struct net_device *dev = wpan_dev->netdev;
518 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
520 mutex_unlock(&sdata->sec_mtx);
524 ieee802154_set_llsec_params(struct wpan_phy *wpan_phy,
525 struct wpan_dev *wpan_dev,
526 const struct ieee802154_llsec_params *params,
529 struct net_device *dev = wpan_dev->netdev;
530 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
533 mutex_lock(&sdata->sec_mtx);
534 res = mac802154_llsec_set_params(&sdata->sec, params, changed);
535 mutex_unlock(&sdata->sec_mtx);
541 ieee802154_get_llsec_params(struct wpan_phy *wpan_phy,
542 struct wpan_dev *wpan_dev,
543 struct ieee802154_llsec_params *params)
545 struct net_device *dev = wpan_dev->netdev;
546 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
549 mutex_lock(&sdata->sec_mtx);
550 res = mac802154_llsec_get_params(&sdata->sec, params);
551 mutex_unlock(&sdata->sec_mtx);
557 ieee802154_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)
561 struct net_device *dev = wpan_dev->netdev;
562 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
565 mutex_lock(&sdata->sec_mtx);
566 res = mac802154_llsec_key_add(&sdata->sec, id, key);
567 mutex_unlock(&sdata->sec_mtx);
573 ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
574 const struct ieee802154_llsec_key_id *id)
576 struct net_device *dev = wpan_dev->netdev;
577 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
580 mutex_lock(&sdata->sec_mtx);
581 res = mac802154_llsec_key_del(&sdata->sec, id);
582 mutex_unlock(&sdata->sec_mtx);
588 ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
589 const struct ieee802154_llsec_seclevel *sl)
591 struct net_device *dev = wpan_dev->netdev;
592 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
595 mutex_lock(&sdata->sec_mtx);
596 res = mac802154_llsec_seclevel_add(&sdata->sec, sl);
597 mutex_unlock(&sdata->sec_mtx);
603 ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
604 const struct ieee802154_llsec_seclevel *sl)
606 struct net_device *dev = wpan_dev->netdev;
607 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
610 mutex_lock(&sdata->sec_mtx);
611 res = mac802154_llsec_seclevel_del(&sdata->sec, sl);
612 mutex_unlock(&sdata->sec_mtx);
618 ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
619 const struct ieee802154_llsec_device *dev_desc)
621 struct net_device *dev = wpan_dev->netdev;
622 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
625 mutex_lock(&sdata->sec_mtx);
626 res = mac802154_llsec_dev_add(&sdata->sec, dev_desc);
627 mutex_unlock(&sdata->sec_mtx);
633 ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
634 __le64 extended_addr)
636 struct net_device *dev = wpan_dev->netdev;
637 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
640 mutex_lock(&sdata->sec_mtx);
641 res = mac802154_llsec_dev_del(&sdata->sec, extended_addr);
642 mutex_unlock(&sdata->sec_mtx);
648 ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
649 __le64 extended_addr,
650 const struct ieee802154_llsec_device_key *key)
652 struct net_device *dev = wpan_dev->netdev;
653 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
656 mutex_lock(&sdata->sec_mtx);
657 res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key);
658 mutex_unlock(&sdata->sec_mtx);
664 ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
665 __le64 extended_addr,
666 const struct ieee802154_llsec_device_key *key)
668 struct net_device *dev = wpan_dev->netdev;
669 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
672 mutex_lock(&sdata->sec_mtx);
673 res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key);
674 mutex_unlock(&sdata->sec_mtx);
678 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
680 const 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,
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 */