blob: 6a7e72df1a508379e53599455f0417339d642a6b [file] [log] [blame]
/* keys.h - Bluetooth key handling */
/*
* Copyright (c) 2015-2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
enum {
BT_KEYS_SLAVE_LTK = BIT(0),
BT_KEYS_IRK = BIT(1),
BT_KEYS_LTK = BIT(2),
BT_KEYS_LOCAL_CSRK = BIT(3),
BT_KEYS_REMOTE_CSRK = BIT(4),
BT_KEYS_LTK_P256 = BIT(5),
BT_KEYS_ALL = (BT_KEYS_SLAVE_LTK | BT_KEYS_IRK | \
BT_KEYS_LTK | BT_KEYS_LOCAL_CSRK | \
BT_KEYS_REMOTE_CSRK | BT_KEYS_LTK_P256),
};
enum {
BT_KEYS_AUTHENTICATED,
BT_KEYS_DEBUG,
/* Total number of flags - must be at the end of the enum */
BT_KEYS_NUM_FLAGS,
};
struct bt_ltk {
uint64_t rand;
uint16_t ediv;
uint8_t val[16];
};
struct bt_irk {
uint8_t val[16];
bt_addr_t rpa;
};
struct bt_csrk {
uint8_t val[16];
uint32_t cnt;
};
struct bt_keys {
bt_addr_le_t addr;
uint8_t enc_size;
ATOMIC_DEFINE(flags, BT_KEYS_NUM_FLAGS);
uint16_t keys;
struct bt_ltk ltk;
struct bt_irk irk;
#if defined(CONFIG_BLUETOOTH_SIGNING)
struct bt_csrk local_csrk;
struct bt_csrk remote_csrk;
#endif /* BLUETOOTH_SIGNING */
#if !defined(CONFIG_BLUETOOTH_SMP_SC_ONLY)
struct bt_ltk slave_ltk;
#endif /* CONFIG_BLUETOOTH_SMP_SC_ONLY */
};
struct bt_keys *bt_keys_get_addr(const bt_addr_le_t *addr);
struct bt_keys *bt_keys_get_type(int type, const bt_addr_le_t *addr);
struct bt_keys *bt_keys_find(int type, const bt_addr_le_t *addr);
struct bt_keys *bt_keys_find_irk(const bt_addr_le_t *addr);
struct bt_keys *bt_keys_find_addr(const bt_addr_le_t *addr);
void bt_keys_add_type(struct bt_keys *keys, int type);
void bt_keys_clear(struct bt_keys *keys);
void bt_keys_clear_all(void);
enum {
BT_LINK_KEY_AUTHENTICATED,
BT_LINK_KEY_DEBUG,
BT_LINK_KEY_SC,
/* Total number of flags - must be at the end of the enum */
BT_LINK_KEY_NUM_FLAGS,
};
struct bt_keys_link_key {
bt_addr_t addr;
ATOMIC_DEFINE(flags, BT_LINK_KEY_NUM_FLAGS);
uint8_t val[16];
};
struct bt_keys_link_key *bt_keys_get_link_key(const bt_addr_t *addr);
struct bt_keys_link_key *bt_keys_find_link_key(const bt_addr_t *addr);
void bt_keys_link_key_clear(struct bt_keys_link_key *link_key);
void bt_keys_link_key_clear_addr(const bt_addr_t *addr);