34 int wusbhc_sec_create(struct wusbhc *wusbhc)  in wusbhc_sec_create()  argument
44 	wusbhc->wq_security = create_singlethread_workqueue("wusbd_security");  in wusbhc_sec_create()
45 	if (wusbhc->wq_security == NULL) {  in wusbhc_sec_create()
50 	wusbhc->gtk.descr.bLength = sizeof(wusbhc->gtk.descr) +  in wusbhc_sec_create()
51 		sizeof(wusbhc->gtk.data);  in wusbhc_sec_create()
52 	wusbhc->gtk.descr.bDescriptorType = USB_DT_KEY;  in wusbhc_sec_create()
53 	wusbhc->gtk.descr.bReserved = 0;  in wusbhc_sec_create()
54 	wusbhc->gtk_index = 0;  in wusbhc_sec_create()
56 	INIT_WORK(&wusbhc->gtk_rekey_work, wusbhc_gtk_rekey_work);  in wusbhc_sec_create()
63 void wusbhc_sec_destroy(struct wusbhc *wusbhc)  in wusbhc_sec_destroy()  argument
65 	destroy_workqueue(wusbhc->wq_security);  in wusbhc_sec_destroy()
81 static u32 wusbhc_next_tkid(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev)  in wusbhc_next_tkid()  argument
87 		tkid = &wusbhc->gtk_tkid;  in wusbhc_next_tkid()
90 		tkid = &wusb_port_by_idx(wusbhc, wusb_dev->port_idx)->ptk_tkid;  in wusbhc_next_tkid()
99 static void wusbhc_generate_gtk(struct wusbhc *wusbhc)  in wusbhc_generate_gtk()  argument
101 	const size_t key_size = sizeof(wusbhc->gtk.data);  in wusbhc_generate_gtk()
104 	tkid = wusbhc_next_tkid(wusbhc, NULL);  in wusbhc_generate_gtk()
106 	wusbhc->gtk.descr.tTKID[0] = (tkid >>  0) & 0xff;  in wusbhc_generate_gtk()
107 	wusbhc->gtk.descr.tTKID[1] = (tkid >>  8) & 0xff;  in wusbhc_generate_gtk()
108 	wusbhc->gtk.descr.tTKID[2] = (tkid >> 16) & 0xff;  in wusbhc_generate_gtk()
110 	get_random_bytes(wusbhc->gtk.descr.bKeyData, key_size);  in wusbhc_generate_gtk()
121 int wusbhc_sec_start(struct wusbhc *wusbhc)  in wusbhc_sec_start()  argument
123 	const size_t key_size = sizeof(wusbhc->gtk.data);  in wusbhc_sec_start()
126 	wusbhc_generate_gtk(wusbhc);  in wusbhc_sec_start()
128 	result = wusbhc->set_gtk(wusbhc, wusbhc->gtk_tkid,  in wusbhc_sec_start()
129 				&wusbhc->gtk.descr.bKeyData, key_size);  in wusbhc_sec_start()
131 		dev_err(wusbhc->dev, "cannot set GTK for the host: %d\n",  in wusbhc_sec_start()
143 void wusbhc_sec_stop(struct wusbhc *wusbhc)  in wusbhc_sec_stop()  argument
145 	cancel_work_sync(&wusbhc->gtk_rekey_work);  in wusbhc_sec_stop()
198 static int wusb_dev_set_gtk(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev)  in wusb_dev_set_gtk()  argument
201 	u8 key_index = wusb_key_index(wusbhc->gtk_index,  in wusb_dev_set_gtk()
209 		&wusbhc->gtk.descr, wusbhc->gtk.descr.bLength,  in wusb_dev_set_gtk()
215 int wusb_dev_sec_add(struct wusbhc *wusbhc,  in wusb_dev_sec_add()  argument
312 int wusb_dev_update_address(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev)  in wusb_dev_update_address()  argument
329 	result = wusb_set_dev_addr(wusbhc, wusb_dev, 0);  in wusb_dev_update_address()
346 	result = wusb_set_dev_addr(wusbhc, wusb_dev, new_address);  in wusb_dev_update_address()
362 int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev,  in wusb_dev_4way_handshake()  argument
388 	tkid = wusbhc_next_tkid(wusbhc, wusb_dev);  in wusb_dev_4way_handshake()
446 	ccm_n.src_addr = wusbhc->uwb_rc->uwb_dev.dev_addr;  in wusb_dev_4way_handshake()
497 	result = wusbhc->set_ptk(wusbhc, wusb_dev->port_idx, tkid,  in wusb_dev_4way_handshake()
502 	result = wusb_dev_set_gtk(wusbhc, wusb_dev);  in wusb_dev_4way_handshake()
511 		result = wusb_dev_update_address(wusbhc, wusb_dev);  in wusb_dev_4way_handshake()
543 	struct wusbhc *wusbhc = container_of(work,  in wusbhc_gtk_rekey_work()  local
544 					struct wusbhc, gtk_rekey_work);  in wusbhc_gtk_rekey_work()
545 	size_t key_size = sizeof(wusbhc->gtk.data);  in wusbhc_gtk_rekey_work()
550 	mutex_lock(&wusbhc->mutex);  in wusbhc_gtk_rekey_work()
552 	wusbhc_generate_gtk(wusbhc);  in wusbhc_gtk_rekey_work()
554 	wusbhc->gtk_index = (wusbhc->gtk_index + 1) % (WUSB_KEY_INDEX_MAX + 1);  in wusbhc_gtk_rekey_work()
560 	for (port_idx = 0; port_idx < wusbhc->ports_max; port_idx++) {  in wusbhc_gtk_rekey_work()
561 		wusb_dev = wusbhc->port[port_idx].wusb_dev;  in wusbhc_gtk_rekey_work()
569 	mutex_unlock(&wusbhc->mutex);  in wusbhc_gtk_rekey_work()
579 		if (wusb_dev_set_gtk(wusbhc, wusb_dev) < 0) {  in wusbhc_gtk_rekey_work()
588 	mutex_lock(&wusbhc->mutex);  in wusbhc_gtk_rekey_work()
589 	wusbhc->set_gtk(wusbhc, wusbhc->gtk_tkid,  in wusbhc_gtk_rekey_work()
590 		&wusbhc->gtk.descr.bKeyData, key_size);  in wusbhc_gtk_rekey_work()
591 	mutex_unlock(&wusbhc->mutex);  in wusbhc_gtk_rekey_work()
605 void wusbhc_gtk_rekey(struct wusbhc *wusbhc)  in wusbhc_gtk_rekey()  argument
614 	queue_work(wusbhc->wq_security, &wusbhc->gtk_rekey_work);  in wusbhc_gtk_rekey()