| /** |
| * @file smp.h |
| * Security Manager Protocol implementation header |
| */ |
| |
| /* |
| * Copyright (c) 2015-2016 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| struct bt_smp_hdr { |
| uint8_t code; |
| } __packed; |
| |
| #define BT_SMP_ERR_SUCCESS 0x00 |
| #define BT_SMP_ERR_PASSKEY_ENTRY_FAILED 0x01 |
| #define BT_SMP_ERR_OOB_NOT_AVAIL 0x02 |
| #define BT_SMP_ERR_AUTH_REQUIREMENTS 0x03 |
| #define BT_SMP_ERR_CONFIRM_FAILED 0x04 |
| #define BT_SMP_ERR_PAIRING_NOTSUPP 0x05 |
| #define BT_SMP_ERR_ENC_KEY_SIZE 0x06 |
| #define BT_SMP_ERR_CMD_NOTSUPP 0x07 |
| #define BT_SMP_ERR_UNSPECIFIED 0x08 |
| #define BT_SMP_ERR_REPEATED_ATTEMPTS 0x09 |
| #define BT_SMP_ERR_INVALID_PARAMS 0x0a |
| #define BT_SMP_ERR_DHKEY_CHECK_FAILED 0x0b |
| #define BT_SMP_ERR_NUMERIC_COMP_FAILED 0x0c |
| #define BT_SMP_ERR_BREDR_PAIRING_IN_PROGRESS 0x0d |
| #define BT_SMP_ERR_CROSS_TRANSP_NOT_ALLOWED 0x0e |
| #define BT_SMP_ERR_KEY_REJECTED 0x0f |
| |
| #define BT_SMP_IO_DISPLAY_ONLY 0x00 |
| #define BT_SMP_IO_DISPLAY_YESNO 0x01 |
| #define BT_SMP_IO_KEYBOARD_ONLY 0x02 |
| #define BT_SMP_IO_NO_INPUT_OUTPUT 0x03 |
| #define BT_SMP_IO_KEYBOARD_DISPLAY 0x04 |
| |
| #define BT_SMP_OOB_DATA_MASK 0x01 |
| #define BT_SMP_OOB_NOT_PRESENT 0x00 |
| #define BT_SMP_OOB_PRESENT 0x01 |
| |
| #define BT_SMP_MIN_ENC_KEY_SIZE CONFIG_BT_SMP_MIN_ENC_KEY_SIZE |
| #define BT_SMP_MAX_ENC_KEY_SIZE 16 |
| |
| #define BT_SMP_DIST_ENC_KEY 0x01 |
| #define BT_SMP_DIST_ID_KEY 0x02 |
| #define BT_SMP_DIST_SIGN 0x04 |
| #define BT_SMP_DIST_LINK_KEY 0x08 |
| |
| #define BT_SMP_DIST_MASK 0x0f |
| |
| #define BT_SMP_AUTH_NONE 0x00 |
| #define BT_SMP_AUTH_BONDING 0x01 |
| #define BT_SMP_AUTH_MITM 0x04 |
| #define BT_SMP_AUTH_SC 0x08 |
| #define BT_SMP_AUTH_KEYPRESS 0x10 |
| #define BT_SMP_AUTH_CT2 0x20 |
| |
| #define BT_SMP_CMD_PAIRING_REQ 0x01 |
| #define BT_SMP_CMD_PAIRING_RSP 0x02 |
| struct bt_smp_pairing { |
| uint8_t io_capability; |
| uint8_t oob_flag; |
| uint8_t auth_req; |
| uint8_t max_key_size; |
| uint8_t init_key_dist; |
| uint8_t resp_key_dist; |
| } __packed; |
| |
| #define BT_SMP_CMD_PAIRING_CONFIRM 0x03 |
| struct bt_smp_pairing_confirm { |
| uint8_t val[16]; |
| } __packed; |
| |
| #define BT_SMP_CMD_PAIRING_RANDOM 0x04 |
| struct bt_smp_pairing_random { |
| uint8_t val[16]; |
| } __packed; |
| |
| #define BT_SMP_CMD_PAIRING_FAIL 0x05 |
| struct bt_smp_pairing_fail { |
| uint8_t reason; |
| } __packed; |
| |
| #define BT_SMP_CMD_ENCRYPT_INFO 0x06 |
| struct bt_smp_encrypt_info { |
| uint8_t ltk[16]; |
| } __packed; |
| |
| #define BT_SMP_CMD_CENTRAL_IDENT 0x07 |
| struct bt_smp_central_ident { |
| uint8_t ediv[2]; |
| uint8_t rand[8]; |
| } __packed; |
| |
| #define BT_SMP_CMD_IDENT_INFO 0x08 |
| struct bt_smp_ident_info { |
| uint8_t irk[16]; |
| } __packed; |
| |
| #define BT_SMP_CMD_IDENT_ADDR_INFO 0x09 |
| struct bt_smp_ident_addr_info { |
| bt_addr_le_t addr; |
| } __packed; |
| |
| #define BT_SMP_CMD_SIGNING_INFO 0x0a |
| struct bt_smp_signing_info { |
| uint8_t csrk[16]; |
| } __packed; |
| |
| #define BT_SMP_CMD_SECURITY_REQUEST 0x0b |
| struct bt_smp_security_request { |
| uint8_t auth_req; |
| } __packed; |
| |
| #define BT_SMP_CMD_PUBLIC_KEY 0x0c |
| struct bt_smp_public_key { |
| uint8_t x[32]; |
| uint8_t y[32]; |
| } __packed; |
| |
| #define BT_SMP_DHKEY_CHECK 0x0d |
| struct bt_smp_dhkey_check { |
| uint8_t e[16]; |
| } __packed; |
| |
| #define BT_SMP_KEYPRESS_NOTIFICATION 0x0e |
| struct bt_smp_keypress_notif { |
| uint8_t type; |
| } __packed; |
| |
| #define BT_SMP_NUM_CMDS 0x0f |
| |
| int bt_smp_start_security(struct bt_conn *conn); |
| bool bt_smp_request_ltk(struct bt_conn *conn, uint64_t rand, uint16_t ediv, |
| uint8_t *ltk); |
| |
| void bt_smp_update_keys(struct bt_conn *conn); |
| |
| int bt_smp_br_send_pairing_req(struct bt_conn *conn); |
| |
| int bt_smp_init(void); |
| |
| int bt_smp_auth_cb_overlay(struct bt_conn *conn, const struct bt_conn_auth_cb *cb); |
| int bt_smp_auth_keypress_notify(struct bt_conn *conn, |
| enum bt_conn_auth_keypress type); |
| int bt_smp_auth_passkey_entry(struct bt_conn *conn, unsigned int passkey); |
| int bt_smp_auth_passkey_confirm(struct bt_conn *conn); |
| int bt_smp_auth_pairing_confirm(struct bt_conn *conn); |
| int bt_smp_auth_cancel(struct bt_conn *conn); |
| |
| int bt_smp_le_oob_set_tk(struct bt_conn *conn, const uint8_t *tk); |
| int bt_smp_le_oob_generate_sc_data(struct bt_le_oob_sc_data *le_sc_oob); |
| int bt_smp_le_oob_set_sc_data(struct bt_conn *conn, |
| const struct bt_le_oob_sc_data *oobd_local, |
| const struct bt_le_oob_sc_data *oobd_remote); |
| int bt_smp_le_oob_get_sc_data(struct bt_conn *conn, |
| const struct bt_le_oob_sc_data **oobd_local, |
| const struct bt_le_oob_sc_data **oobd_remote); |
| |
| /** brief Verify signed message |
| * |
| * @param conn Bluetooth connection |
| * @param buf received packet buffer with message and signature |
| * |
| * @return 0 in success, error code otherwise |
| */ |
| int bt_smp_sign_verify(struct bt_conn *conn, struct net_buf *buf); |
| |
| /** brief Sign message |
| * |
| * @param conn Bluetooth connection |
| * @param buf message buffer |
| * |
| * @return 0 in success, error code otherwise |
| */ |
| int bt_smp_sign(struct bt_conn *conn, struct net_buf *buf); |
| |
| /** Generate IRK from Identity Root (IR) */ |
| int bt_smp_irk_get(uint8_t *ir, uint8_t *irk); |
| |
| /** Converts a SMP error to string. |
| * |
| * The error codes are described in the Bluetooth Core specification, |
| * Vol 3, Part H, Section 3.5.5. |
| * |
| * The Security Manager Protocol documentation found in Vol 4, Part H, |
| * describes when the different error codes are used. |
| * |
| * See also the defined BT_SMP_ERR_* macros. |
| * |
| * @return The string representation of the SMP error code. |
| */ |
| #if defined(CONFIG_BT_SMP_ERR_TO_STR) |
| const char *bt_smp_err_to_str(uint8_t smp_err); |
| #else |
| static inline const char *bt_smp_err_to_str(uint8_t smp_err) |
| { |
| ARG_UNUSED(smp_err); |
| |
| return ""; |
| } |
| #endif |