zephyr/subsys/bluetooth/host/keys.h

95 lines
2.2 KiB
C

/* 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,
BT_KEYS_ID_PENDING_ADD,
BT_KEYS_ID_PENDING_DEL,
/* Total number of flags - must be at the end of the enum */
BT_KEYS_NUM_FLAGS,
};
struct bt_ltk {
u64_t rand;
u16_t ediv;
u8_t val[16];
};
struct bt_irk {
u8_t val[16];
bt_addr_t rpa;
};
struct bt_csrk {
u8_t val[16];
u32_t cnt;
};
struct bt_keys {
bt_addr_le_t addr;
u8_t enc_size;
ATOMIC_DEFINE(flags, BT_KEYS_NUM_FLAGS);
u16_t keys;
struct bt_ltk ltk;
struct bt_irk irk;
#if defined(CONFIG_BT_SIGNING)
struct bt_csrk local_csrk;
struct bt_csrk remote_csrk;
#endif /* BT_SIGNING */
#if !defined(CONFIG_BT_SMP_SC_ONLY)
struct bt_ltk slave_ltk;
#endif /* CONFIG_BT_SMP_SC_ONLY */
};
void bt_keys_foreach(int type, void (*func)(struct bt_keys *keys));
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);
u8_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);