1 /* keys_br.c - Bluetooth BR/EDR key handling */
4  * Copyright (c) 2015-2016 Intel Corporation
6  * SPDX-License-Identifier: Apache-2.0
38 	struct bt_keys_link_key *key;  in bt_keys_find_link_key()  local
39 	int i;  in bt_keys_find_link_key()
44 		key = &key_pool[i];  in bt_keys_find_link_key()
46 		if (bt_addr_eq(&key->addr, addr)) {  in bt_keys_find_link_key()
47 			return key;  in bt_keys_find_link_key()
56 	struct bt_keys_link_key *key;  in bt_keys_get_link_key()  local
58 	key = bt_keys_find_link_key(addr);  in bt_keys_get_link_key()
59 	if (key) {  in bt_keys_get_link_key()
60 		return key;  in bt_keys_get_link_key()
63 	key = bt_keys_find_link_key(BT_ADDR_ANY);  in bt_keys_get_link_key()
65 	if (!key) {  in bt_keys_get_link_key()
66 		int i;  in bt_keys_get_link_key()
68 		key = &key_pool[0];  in bt_keys_get_link_key()
72 			if (current->aging_counter < key->aging_counter) {  in bt_keys_get_link_key()
73 				key = current;  in bt_keys_get_link_key()
77 		if (key) {  in bt_keys_get_link_key()
78 			bt_keys_link_key_clear(key);  in bt_keys_get_link_key()
83 	if (key) {  in bt_keys_get_link_key()
84 		bt_addr_copy(&key->addr, addr);  in bt_keys_get_link_key()
86 		key->aging_counter = ++aging_counter_val;  in bt_keys_get_link_key()
87 		last_keys_updated = key;  in bt_keys_get_link_key()
89 		LOG_DBG("created %p for %s", key, bt_addr_str(addr));  in bt_keys_get_link_key()
90 		return key;  in bt_keys_get_link_key()
104 		bt_addr_copy(&le_addr.a, &link_key->addr);  in bt_keys_link_key_clear()
109 	LOG_DBG("%s", bt_addr_str(&link_key->addr));  in bt_keys_link_key_clear()
115 	int i;  in bt_keys_link_key_clear_addr()
116 	struct bt_keys_link_key *key;  in bt_keys_link_key_clear_addr()  local
120 			key = &key_pool[i];  in bt_keys_link_key_clear_addr()
121 			bt_keys_link_key_clear(key);  in bt_keys_link_key_clear_addr()
126 	key = bt_keys_find_link_key(addr);  in bt_keys_link_key_clear_addr()
127 	if (key) {  in bt_keys_link_key_clear_addr()
128 		bt_keys_link_key_clear(key);  in bt_keys_link_key_clear_addr()
135 		int err;  in bt_keys_link_key_store()
139 		bt_addr_copy(&le_addr.a, &link_key->addr);  in bt_keys_link_key_store()
141 		err = bt_settings_store_link_key(&le_addr, link_key->storage_start,  in bt_keys_link_key_store()
144 			LOG_ERR("Failed to save link key (err %d)", err);  in bt_keys_link_key_store()
155 		const struct bt_keys_link_key *key = &key_pool[i];  in bt_foreach_bond_br()  local
157 		if (!bt_addr_eq(&key->addr, BT_ADDR_ANY)) {  in bt_foreach_bond_br()
161 			bt_addr_copy(&info.addr.a, &key->addr);  in bt_foreach_bond_br()
169 static int link_key_set(const char *name, size_t len_rd,  in link_key_set()
172 	int err;  in link_key_set()
180 		return -EINVAL;  in link_key_set()
186 		return -EINVAL;  in link_key_set()
194 		return -EINVAL;  in link_key_set()
209 	memcpy(link_key->storage_start, val, len);  in link_key_set()
210 	LOG_DBG("Successfully restored link key for %s", bt_addr_le_str(&le_addr));  in link_key_set()
212 	if (aging_counter_val < link_key->aging_counter) {  in link_key_set()
213 		aging_counter_val = link_key->aging_counter;  in link_key_set()
236 	link_key->aging_counter = ++aging_counter_val;  in bt_keys_link_key_update_usage()
239 	LOG_DBG("Aging counter for %s is set to %u", bt_addr_str(addr), link_key->aging_counter);  in bt_keys_link_key_update_usage()