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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#ifndef H_BLE_L2CAP_SM_
#define H_BLE_L2CAP_SM_
struct ble_gap_sec_state;
struct hci_le_lt_key_req;
#define BLE_L2CAP_SM_MTU 65
#define BLE_L2CAP_SM_HDR_SZ 1
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x01/0x02 [req/rsp]) | 1 |
* | IO Capability | 1 |
* | OOB data flag | 1 |
* | AuthReq | 1 |
* | Maximum Encryption Key Size | 1 |
* | Initiator Key Distribution | 1 |
* | Responder Key Distribution | 1 |
*/
#define BLE_L2CAP_SM_PAIR_CMD_SZ 6
struct ble_l2cap_sm_pair_cmd {
uint8_t io_cap;
uint8_t oob_data_flag;
uint8_t authreq;
uint8_t max_enc_key_size;
uint8_t init_key_dist;
uint8_t resp_key_dist;
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x03) | 1 |
* | Confirm Value | 16 |
*/
#define BLE_L2CAP_SM_PAIR_CONFIRM_SZ 16
struct ble_l2cap_sm_pair_confirm {
uint8_t value[16];
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x04) | 1 |
* | Random Value | 16 |
*/
#define BLE_L2CAP_SM_PAIR_RANDOM_SZ 16
struct ble_l2cap_sm_pair_random {
uint8_t value[16];
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x05) | 1 |
* | Reason | 1 |
*/
#define BLE_L2CAP_SM_PAIR_FAIL_SZ 1
struct ble_l2cap_sm_pair_fail {
uint8_t reason;
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x06) | 1 |
* | ltk | 16 |
*/
#define BLE_L2CAP_SM_ENC_INFO_SZ 16
struct ble_l2cap_sm_enc_info {
uint8_t ltk_le[16];
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x07) | 1 |
* | EDIV | 2 |
* | RAND | 8 |
*/
#define BLE_L2CAP_SM_MASTER_IDEN_SZ 10
struct ble_l2cap_sm_master_iden {
uint16_t ediv;
uint64_t rand_val;
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x08) | 1 |
* | irk | 16 |
*/
#define BLE_L2CAP_SM_IDEN_INFO_SZ 16
struct ble_l2cap_sm_iden_info {
uint8_t irk_le[16];
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x09) | 1 |
* | addr_type | 1 |
* | address | 6 |
*/
#define BLE_L2CAP_SM_IDEN_ADDR_INFO_SZ 7
struct ble_l2cap_sm_iden_addr_info {
uint8_t addr_type;
uint8_t bd_addr_le[6];
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x0A) | 1 |
* | csrk | 16 |
*/
#define BLE_L2CAP_SM_SIGNING_INFO_SZ 16
struct ble_l2cap_sm_signing_info {
uint8_t sig_key_le[16];
};
/**
* | Parameter | Size (octets) |
* +------------------------------------+-------------------+
* | (Code=0x0B) | 1 |
* | authreq | 1 |
*/
#define BLE_L2CAP_SM_SEC_REQ_SZ 1
struct ble_l2cap_sm_sec_req {
uint8_t authreq;
};
#if NIMBLE_OPT_SM
#ifdef BLE_HS_DEBUG
void ble_l2cap_sm_dbg_set_next_pair_rand(uint8_t *next_pair_rand);
void ble_l2cap_sm_dbg_set_next_ediv(uint16_t next_ediv);
void ble_l2cap_sm_dbg_set_next_start_rand(uint64_t next_start_rand);
void ble_l2cap_sm_dbg_set_next_ltk(uint8_t *next_ltk);
int ble_l2cap_sm_dbg_num_procs(void);
#endif
uint8_t ble_l2cap_sm_build_authreq(void);
struct ble_l2cap_chan *ble_l2cap_sm_create_chan(void);
void ble_l2cap_sm_pair_cmd_parse(void *payload, int len,
struct ble_l2cap_sm_pair_cmd *cmd);
void ble_l2cap_sm_pair_cmd_write(void *payload, int len, int is_req,
struct ble_l2cap_sm_pair_cmd *cmd);
int ble_l2cap_sm_pair_cmd_tx(uint16_t conn_handle, int is_req,
struct ble_l2cap_sm_pair_cmd *cmd);
void ble_l2cap_sm_pair_confirm_parse(void *payload, int len,
struct ble_l2cap_sm_pair_confirm *cmd);
void ble_l2cap_sm_pair_confirm_write(void *payload, int len,
struct ble_l2cap_sm_pair_confirm *cmd);
int ble_l2cap_sm_pair_confirm_tx(uint16_t conn_handle,
struct ble_l2cap_sm_pair_confirm *cmd);
void ble_l2cap_sm_pair_random_parse(void *payload, int len,
struct ble_l2cap_sm_pair_random *cmd);
void ble_l2cap_sm_pair_random_write(void *payload, int len,
struct ble_l2cap_sm_pair_random *cmd);
int ble_l2cap_sm_pair_random_tx(uint16_t conn_handle,
struct ble_l2cap_sm_pair_random *cmd);
void ble_l2cap_sm_pair_fail_parse(void *payload, int len,
struct ble_l2cap_sm_pair_fail *cmd);
int ble_l2cap_sm_pair_cmd_is_valid(struct ble_l2cap_sm_pair_cmd *cmd);
void ble_l2cap_sm_pair_fail_write(void *payload, int len,
struct ble_l2cap_sm_pair_fail *cmd);
int ble_l2cap_sm_pair_fail_tx(uint16_t conn_handle, uint8_t reason);
int ble_l2cap_sm_alg_s1(uint8_t *k, uint8_t *r1, uint8_t *r2, uint8_t *out);
int ble_l2cap_sm_alg_c1(uint8_t *k, uint8_t *r,
uint8_t *preq, uint8_t *pres,
uint8_t iat, uint8_t rat,
uint8_t *ia, uint8_t *ra,
uint8_t *out_enc_data);
void ble_l2cap_sm_enc_info_parse(void *payload, int len,
struct ble_l2cap_sm_enc_info *cmd);
int ble_l2cap_sm_enc_info_tx(uint16_t conn_handle,
struct ble_l2cap_sm_enc_info *cmd);
void ble_l2cap_sm_master_iden_parse(void *payload, int len,
struct ble_l2cap_sm_master_iden *cmd);
int ble_l2cap_sm_master_iden_tx(uint16_t conn_handle,
struct ble_l2cap_sm_master_iden *cmd);
void ble_l2cap_sm_iden_info_parse(void *payload, int len,
struct ble_l2cap_sm_iden_info *cmd);
int ble_l2cap_sm_iden_info_tx(uint16_t conn_handle,
struct ble_l2cap_sm_iden_info *cmd);
void ble_l2cap_sm_iden_addr_parse(void *payload, int len,
struct ble_l2cap_sm_iden_addr_info *cmd);
int ble_l2cap_sm_iden_addr_tx(uint16_t conn_handle,
struct ble_l2cap_sm_iden_addr_info *cmd);
void ble_l2cap_sm_signing_info_parse(void *payload, int len,
struct ble_l2cap_sm_signing_info *cmd);
int ble_l2cap_sm_signing_info_tx(uint16_t conn_handle,
struct ble_l2cap_sm_signing_info *cmd);
void ble_l2cap_sm_sec_req_parse(void *payload, int len,
struct ble_l2cap_sm_sec_req *cmd);
void ble_l2cap_sm_sec_req_write(void *payload, int len,
struct ble_l2cap_sm_sec_req *cmd);
int ble_l2cap_sm_sec_req_tx(uint16_t conn_handle,
struct ble_l2cap_sm_sec_req *cmd);
void ble_l2cap_sm_rx_encryption_change(struct hci_encrypt_change *evt);
int ble_l2cap_sm_rx_lt_key_req(struct hci_le_lt_key_req *evt);
void ble_l2cap_sm_heartbeat(void);
int ble_l2cap_sm_pair_initiate(uint16_t conn_handle);
int ble_l2cap_sm_slave_initiate(uint16_t conn_handle);
int ble_l2cap_sm_enc_initiate(uint16_t conn_handle, uint8_t *ltk,
uint16_t ediv, uint64_t rand_val, int auth);
int ble_l2cap_sm_init(void);
#else
#ifdef BLE_HS_DEBUG
#define ble_l2cap_sm_dbg_set_next_rand(next_rand)
#define ble_l2cap_sm_dbg_num_procs() 0
#endif
#define ble_l2cap_sm_create_chan() NULL
#define ble_l2cap_sm_pair_cmd_tx(conn_handle, is_req, cmd) BLE_HS_ENOTSUP
#define ble_l2cap_sm_pair_confirm_tx(conn_handle, cmd) BLE_HS_ENOTSUP
#define ble_l2cap_sm_pair_random_tx(conn_handle, cmd) BLE_HS_ENOTSUP
#define ble_l2cap_sm_pair_fail_tx(conn_handle, cmd) BLE_HS_ENOTSUP
#define ble_l2cap_sm_alg_s1(k, r1, r2, out) BLE_HS_ENOTSUP
#define ble_l2cap_sm_alg_c1(k, r, preq, pres, iat, rat, ia, ra, out_enc_data) \
BLE_HS_ENOTSUP
#define ble_l2cap_sm_rx_encryption_change(evt) ((void)(evt))
#define ble_l2cap_sm_rx_lt_key_req(evt) ((void)(evt))
#define ble_l2cap_sm_connection_broken(conn_handle)
#define ble_l2cap_sm_heartbeat()
#define ble_l2cap_sm_init() 0
#endif
#endif
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