103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
/* keys.h - Bluetooth key handling */
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/*
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* Copyright (c) 2015-2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#if defined(CONFIG_BLUETOOTH_SMP)
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enum {
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BT_KEYS_SLAVE_LTK = BIT(0),
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BT_KEYS_IRK = BIT(1),
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BT_KEYS_LTK = BIT(2),
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BT_KEYS_LOCAL_CSRK = BIT(3),
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BT_KEYS_REMOTE_CSRK = BIT(4),
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BT_KEYS_LTK_P256 = BIT(5),
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BT_KEYS_ALL = (BT_KEYS_SLAVE_LTK | BT_KEYS_IRK | \
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BT_KEYS_LTK | BT_KEYS_LOCAL_CSRK | \
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BT_KEYS_REMOTE_CSRK | BT_KEYS_LTK_P256),
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};
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enum {
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BT_KEYS_AUTHENTICATED,
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BT_KEYS_DEBUG,
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/* Total number of flags - must be at the end of the enum */
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BT_KEYS_NUM_FLAGS,
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};
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struct bt_ltk {
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uint64_t rand;
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uint16_t ediv;
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uint8_t val[16];
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};
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struct bt_irk {
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uint8_t val[16];
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bt_addr_t rpa;
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};
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struct bt_csrk {
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uint8_t val[16];
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uint32_t cnt;
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};
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struct bt_keys {
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bt_addr_le_t addr;
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uint8_t enc_size;
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ATOMIC_DEFINE(flags, BT_KEYS_NUM_FLAGS);
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uint16_t keys;
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struct bt_ltk ltk;
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struct bt_irk irk;
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#if defined(CONFIG_BLUETOOTH_SIGNING)
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struct bt_csrk local_csrk;
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struct bt_csrk remote_csrk;
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#endif /* BLUETOOTH_SIGNING */
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#if !defined(CONFIG_BLUETOOTH_SMP_SC_ONLY)
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struct bt_ltk slave_ltk;
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#endif /* CONFIG_BLUETOOTH_SMP_SC_ONLY */
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};
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struct bt_keys *bt_keys_get_addr(const bt_addr_le_t *addr);
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struct bt_keys *bt_keys_get_type(int type, const bt_addr_le_t *addr);
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struct bt_keys *bt_keys_find(int type, const bt_addr_le_t *addr);
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struct bt_keys *bt_keys_find_irk(const bt_addr_le_t *addr);
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struct bt_keys *bt_keys_find_addr(const bt_addr_le_t *addr);
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void bt_keys_add_type(struct bt_keys *keys, int type);
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void bt_keys_clear(struct bt_keys *keys);
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#endif /* CONFIG_BLUETOOTH_SMP */
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#if defined(CONFIG_BLUETOOTH_BREDR)
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enum {
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BT_LINK_KEY_AUTHENTICATED,
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BT_LINK_KEY_DEBUG,
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BT_LINK_KEY_SC,
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/* Total number of flags - must be at the end of the enum */
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BT_LINK_KEY_NUM_FLAGS,
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};
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struct bt_keys_link_key {
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bt_addr_t addr;
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ATOMIC_DEFINE(flags, BT_LINK_KEY_NUM_FLAGS);
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uint8_t val[16];
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};
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struct bt_keys_link_key *bt_keys_get_link_key(const bt_addr_t *addr);
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struct bt_keys_link_key *bt_keys_find_link_key(const bt_addr_t *addr);
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void bt_keys_link_key_clear(struct bt_keys_link_key *link_key);
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#endif /* CONFIG_BLUETOOTH_BREDR */
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