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esp-idf/components/bt/host/bluedroid/stack/include/stack/smp_api.h

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/******************************************************************************
*
* Copyright (C) 1999-2012 Broadcom Corporation
*
* Licensed 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.
*
******************************************************************************/
/******************************************************************************
*
* This file contains the SMP API function external definitions.
*
******************************************************************************/
#ifndef SMP_API_H
#define SMP_API_H
#include "common/bt_target.h"
#define SMP_PIN_CODE_LEN_MAX PIN_CODE_LEN
#define SMP_PIN_CODE_LEN_MIN 6
// #if SMP_INCLUDED == TRUE
/* SMP command code */
#define SMP_OPCODE_PAIRING_REQ 0x01
#define SMP_OPCODE_PAIRING_RSP 0x02
#define SMP_OPCODE_CONFIRM 0x03
#define SMP_OPCODE_RAND 0x04
#define SMP_OPCODE_PAIRING_FAILED 0x05
#define SMP_OPCODE_ENCRYPT_INFO 0x06
#define SMP_OPCODE_MASTER_ID 0x07
#define SMP_OPCODE_IDENTITY_INFO 0x08
#define SMP_OPCODE_ID_ADDR 0x09
#define SMP_OPCODE_SIGN_INFO 0x0A
#define SMP_OPCODE_SEC_REQ 0x0B
#define SMP_OPCODE_PAIR_PUBLIC_KEY 0x0C
#define SMP_OPCODE_PAIR_DHKEY_CHECK 0x0D
#define SMP_OPCODE_PAIR_KEYPR_NOTIF 0x0E
#define SMP_OPCODE_MAX SMP_OPCODE_PAIR_KEYPR_NOTIF
#define SMP_OPCODE_MIN SMP_OPCODE_PAIRING_REQ
#define SMP_OPCODE_PAIR_COMMITM 0x0F
// #endif
/* SMP event type */
#define SMP_IO_CAP_REQ_EVT 1 /* IO capability request event */
#define SMP_SEC_REQUEST_EVT 2 /* SMP pairing request */
#define SMP_PASSKEY_NOTIF_EVT 3 /* passkey notification event */
#define SMP_PASSKEY_REQ_EVT 4 /* passkey request event */
#define SMP_OOB_REQ_EVT 5 /* OOB request event */
#define SMP_NC_REQ_EVT 6 /* Numeric Comparison request event */
#define SMP_COMPLT_EVT 7 /* SMP complete event */
#define SMP_PEER_KEYPR_NOT_EVT 8 /* Peer keypress notification received event */
#define SMP_SC_OOB_REQ_EVT 9 /* SC OOB request event (both local and peer OOB data */
/* can be expected in response) */
#define SMP_SC_LOC_OOB_DATA_UP_EVT 10 /* SC OOB local data set is created */
/* (as result of SMP_CrLocScOobData(...)) */
#define SMP_BR_KEYS_REQ_EVT 12 /* SMP over BR keys request event */
typedef UINT8 tSMP_EVT;
/* pairing failure reason code */
#define SMP_PASSKEY_ENTRY_FAIL 0x01
#define SMP_OOB_FAIL 0x02
#define SMP_PAIR_AUTH_FAIL 0x03
#define SMP_CONFIRM_VALUE_ERR 0x04
#define SMP_PAIR_NOT_SUPPORT 0x05
#define SMP_ENC_KEY_SIZE 0x06
#define SMP_INVALID_CMD 0x07
#define SMP_PAIR_FAIL_UNKNOWN 0x08
#define SMP_REPEATED_ATTEMPTS 0x09
#define SMP_INVALID_PARAMETERS 0x0A
#define SMP_DHKEY_CHK_FAIL 0x0B
#define SMP_NUMERIC_COMPAR_FAIL 0x0C
#define SMP_BR_PARING_IN_PROGR 0x0D
#define SMP_XTRANS_DERIVE_NOT_ALLOW 0x0E
#define SMP_MAX_FAIL_RSN_PER_SPEC SMP_XTRANS_DERIVE_NOT_ALLOW
/* self defined error code */
#define SMP_PAIR_INTERNAL_ERR (SMP_MAX_FAIL_RSN_PER_SPEC + 0x01) /* 0x0F */
/* 0x0F unknown IO capability, unable to decide association model */
#define SMP_UNKNOWN_IO_CAP (SMP_MAX_FAIL_RSN_PER_SPEC + 0x02) /* 0x10 */
#define SMP_INIT_FAIL (SMP_MAX_FAIL_RSN_PER_SPEC + 0x03) /* 0x11 */
#define SMP_CONFIRM_FAIL (SMP_MAX_FAIL_RSN_PER_SPEC + 0x04) /* 0x12 */
#define SMP_BUSY (SMP_MAX_FAIL_RSN_PER_SPEC + 0x05) /* 0x13 */
#define SMP_ENC_FAIL (SMP_MAX_FAIL_RSN_PER_SPEC + 0x06) /* 0x14 */
#define SMP_STARTED (SMP_MAX_FAIL_RSN_PER_SPEC + 0x07) /* 0x15 */
#define SMP_RSP_TIMEOUT (SMP_MAX_FAIL_RSN_PER_SPEC + 0x08) /* 0x16 */
#define SMP_DIV_NOT_AVAIL (SMP_MAX_FAIL_RSN_PER_SPEC + 0x09) /* 0x17 */
/* 0x17 unspecified failed reason */
#define SMP_FAIL (SMP_MAX_FAIL_RSN_PER_SPEC + 0x0A) /* 0x18 */
#define SMP_CONN_TOUT (SMP_MAX_FAIL_RSN_PER_SPEC + 0x0B) /* 0x19 */
#define SMP_SUCCESS 0
typedef UINT8 tSMP_STATUS;
/* Device IO capability */
#define SMP_IO_CAP_OUT BTM_IO_CAP_OUT /* DisplayOnly */
#define SMP_IO_CAP_IO BTM_IO_CAP_IO /* DisplayYesNo */
#define SMP_IO_CAP_IN BTM_IO_CAP_IN /* KeyboardOnly */
#define SMP_IO_CAP_NONE BTM_IO_CAP_NONE /* NoInputNoOutput */
#define SMP_IO_CAP_KBDISP BTM_IO_CAP_KBDISP /* Keyboard Display */
#define SMP_IO_CAP_MAX BTM_IO_CAP_MAX
typedef UINT8 tSMP_IO_CAP;
#ifndef SMP_DEFAULT_IO_CAPS
#define SMP_DEFAULT_IO_CAPS SMP_IO_CAP_KBDISP
#endif
/* OOB data present or not */
enum {
SMP_OOB_NONE,
SMP_OOB_PRESENT,
SMP_OOB_UNKNOWN
};
typedef UINT8 tSMP_OOB_FLAG;
/* type of OOB data required from application */
enum {
SMP_OOB_INVALID_TYPE,
SMP_OOB_PEER,
SMP_OOB_LOCAL,
SMP_OOB_BOTH
};
typedef UINT8 tSMP_OOB_DATA_TYPE;
#define SMP_AUTH_NO_BOND 0x00
#define SMP_AUTH_GEN_BOND 0x01 //todo sdh change GEN_BOND to BOND
/* SMP Authentication requirement */
#define SMP_AUTH_YN_BIT (1 << 2)
#define SMP_SC_SUPPORT_BIT (1 << 3)
#define SMP_KP_SUPPORT_BIT (1 << 4)
#define SMP_AUTH_MASK (SMP_AUTH_GEN_BOND|SMP_AUTH_YN_BIT|SMP_SC_SUPPORT_BIT|SMP_KP_SUPPORT_BIT)
#define SMP_AUTH_BOND SMP_AUTH_GEN_BOND
/* no MITM, No Bonding, encryption only */
#define SMP_AUTH_NB_ENC_ONLY 0x00 //(SMP_AUTH_MASK | BTM_AUTH_SP_NO)
/* MITM, No Bonding, Use IO Capability to determine authentication procedure */
#define SMP_AUTH_NB_IOCAP (SMP_AUTH_NO_BOND | SMP_AUTH_YN_BIT)
/* No MITM, General Bonding, Encryption only */
#define SMP_AUTH_GB_ENC_ONLY (SMP_AUTH_GEN_BOND )
/* MITM, General Bonding, Use IO Capability to determine authentication procedure */
#define SMP_AUTH_GB_IOCAP (SMP_AUTH_GEN_BOND | SMP_AUTH_YN_BIT)
/* Secure Connections, no MITM, no Bonding */
#define SMP_AUTH_SC_ENC_ONLY (SMP_SC_SUPPORT_BIT)
/* Secure Connections, no MITM, Bonding */
#define SMP_AUTH_SC_GB (SMP_SC_SUPPORT_BIT | SMP_AUTH_GEN_BOND)
/* Secure Connections, MITM, no Bonding */
#define SMP_AUTH_SC_MITM_NB (SMP_SC_SUPPORT_BIT | SMP_AUTH_YN_BIT | SMP_AUTH_NO_BOND)
/* Secure Connections, MITM, Bonding */
#define SMP_AUTH_SC_MITM_GB (SMP_SC_SUPPORT_BIT | SMP_AUTH_YN_BIT | SMP_AUTH_GEN_BOND)
/* All AuthReq RFU bits are set to 1 - NOTE: reserved bit in Bonding_Flags is not set */
#define SMP_AUTH_ALL_RFU_SET 0xF8
typedef UINT8 tSMP_AUTH_REQ;
#define SMP_SEC_NONE 0
#define SMP_SEC_UNAUTHENTICATE (1 << 0)
#define SMP_SEC_AUTHENTICATED (1 << 2)
typedef UINT8 tSMP_SEC_LEVEL;
/* Maximum Encryption Key Size range */
#define SMP_ENCR_KEY_SIZE_MIN 7
#define SMP_ENCR_KEY_SIZE_MAX 16
/* SMP key types */
#define SMP_SEC_KEY_TYPE_ENC (1 << 0) /* encryption key */
#define SMP_SEC_KEY_TYPE_ID (1 << 1) /* identity key */
#define SMP_SEC_KEY_TYPE_CSRK (1 << 2) /* slave CSRK */
#define SMP_SEC_KEY_TYPE_LK (1 << 3) /* BR/EDR link key */
typedef UINT8 tSMP_KEYS;
#define SMP_BR_SEC_DEFAULT_KEY (SMP_SEC_KEY_TYPE_ENC | SMP_SEC_KEY_TYPE_ID | \
SMP_SEC_KEY_TYPE_CSRK)
/* default security key distribution value */
#define SMP_SEC_DEFAULT_KEY (SMP_SEC_KEY_TYPE_ENC | SMP_SEC_KEY_TYPE_ID | \
SMP_SEC_KEY_TYPE_CSRK | SMP_SEC_KEY_TYPE_LK)
#define SMP_SC_KEY_STARTED 0 /* passkey entry started */
#define SMP_SC_KEY_ENTERED 1 /* passkey digit entered */
#define SMP_SC_KEY_ERASED 2 /* passkey digit erased */
#define SMP_SC_KEY_CLEARED 3 /* passkey cleared */
#define SMP_SC_KEY_COMPLT 4 /* passkey entry completed */
#define SMP_SC_KEY_OUT_OF_RANGE 5 /* out of range */
typedef UINT8 tSMP_SC_KEY_TYPE;
/* data type for BTM_SP_IO_REQ_EVT */
typedef struct {
tSMP_IO_CAP io_cap; /* local IO capabilities */
tSMP_OOB_FLAG oob_data; /* OOB data present (locally) for the peer device */
tSMP_AUTH_REQ auth_req; /* Authentication required (for local device) */
UINT8 max_key_size; /* max encryption key size */
tSMP_KEYS init_keys; /* initiator keys to be distributed */
tSMP_KEYS resp_keys; /* responder keys */
} tSMP_IO_REQ;
typedef struct {
tSMP_STATUS reason;
tSMP_SEC_LEVEL sec_level;
BOOLEAN is_pair_cancel;
BOOLEAN smp_over_br;
tSMP_AUTH_REQ auth_mode;
} tSMP_CMPL;
typedef struct {
BT_OCTET32 x;
BT_OCTET32 y;
} tSMP_PUBLIC_KEY;
/* the data associated with the info sent to the peer via OOB interface */
typedef struct {
BOOLEAN present;
BT_OCTET16 randomizer;
BT_OCTET16 commitment;
tBLE_BD_ADDR addr_sent_to;
BT_OCTET32 private_key_used; /* is used to calculate: */
/* publ_key_used = P-256(private_key_used, curve_p256.G) - send it to the */
/* other side */
/* dhkey = P-256(private_key_used, publ key rcvd from the other side) */
tSMP_PUBLIC_KEY publ_key_used; /* P-256(private_key_used, curve_p256.G) */
} tSMP_LOC_OOB_DATA;
/* the data associated with the info received from the peer via OOB interface */
typedef struct {
BOOLEAN present;
BT_OCTET16 randomizer;
BT_OCTET16 commitment;
tBLE_BD_ADDR addr_rcvd_from;
} tSMP_PEER_OOB_DATA;
typedef struct {
tSMP_LOC_OOB_DATA loc_oob_data;
tSMP_PEER_OOB_DATA peer_oob_data;
} tSMP_SC_OOB_DATA;
typedef union {
UINT32 passkey;
tSMP_IO_REQ io_req; /* IO request */
tSMP_CMPL cmplt;
tSMP_OOB_DATA_TYPE req_oob_type;
tSMP_LOC_OOB_DATA loc_oob_data;
} tSMP_EVT_DATA;
/* AES Encryption output */
typedef struct {
UINT8 status;
UINT8 param_len;
UINT16 opcode;
UINT8 param_buf[BT_OCTET16_LEN];
} tSMP_ENC;
/* Security Manager events - Called by the stack when Security Manager related events occur.*/
typedef UINT8 (tSMP_CALLBACK) (tSMP_EVT event, BD_ADDR bd_addr, tSMP_EVT_DATA *p_data);
/* callback function for CMAC algorithm
*/
typedef void (tCMAC_CMPL_CBACK)(UINT8 *p_mac, UINT16 tlen, UINT32 sign_counter);
/*****************************************************************************
** External Function Declarations
*****************************************************************************/
#ifdef __cplusplus
extern "C"
{
#endif
/* API of SMP */
/*******************************************************************************
**
** Function SMP_Init
**
** Description This function initializes the SMP unit.
**
** Returns void
**
*******************************************************************************/
extern void SMP_Init(void);
/*******************************************************************************
**
** Function SMP_Free
**
** Description This function de initializes the SMP unit.
**
** Returns void
**
*******************************************************************************/
extern void SMP_Free(void);
/*******************************************************************************
**
** Function SMP_SetTraceLevel
**
** Description This function sets the trace level for SMP. If called with
** a value of 0xFF, it simply returns the current trace level.
**
** Returns The new or current trace level
**
*******************************************************************************/
extern UINT8 SMP_SetTraceLevel (UINT8 new_level);
/*******************************************************************************
**
** Function SMP_Register
**
** Description This function register for the SMP service callback.
**
** Returns void
**
*******************************************************************************/
extern BOOLEAN SMP_Register (tSMP_CALLBACK *p_cback);
/*******************************************************************************
**
** Function SMP_Pair
**
** Description This function is called to start a SMP pairing.
**
** Returns SMP_STARTED if bond started, else otherwise exception.
**
*******************************************************************************/
extern tSMP_STATUS SMP_Pair (BD_ADDR bd_addr);
/*******************************************************************************
**
** Function SMP_BR_PairWith
**
** Description This function is called to start a SMP pairing over BR/EDR.
**
** Returns SMP_STARTED if pairing started, otherwise reason for failure.
**
*******************************************************************************/
extern tSMP_STATUS SMP_BR_PairWith (BD_ADDR bd_addr);
/*******************************************************************************
**
** Function SMP_PairCancel
**
** Description This function is called to cancel a SMP pairing.
**
** Returns TRUE - pairing cancelled
**
*******************************************************************************/
extern BOOLEAN SMP_PairCancel (BD_ADDR bd_addr);
/*******************************************************************************
**
** Function SMP_SecurityGrant
**
** Description This function is called to grant security process.
**
** Parameters bd_addr - peer device bd address.
** res - result of the operation SMP_SUCCESS if success.
** Otherwise, SMP_REPEATED_ATTEMPTS is too many attempts.
**
** Returns None
**
*******************************************************************************/
extern void SMP_SecurityGrant(BD_ADDR bd_addr, UINT8 res);
/*******************************************************************************
**
** Function SMP_PasskeyReply
**
** Description This function is called after Security Manager submitted
** Passkey request to the application.
**
** Parameters: bd_addr - Address of the device for which PIN was requested
** res - result of the operation SMP_SUCCESS if success
** passkey - numeric value in the range of
** BTM_MIN_PASSKEY_VAL(0) - BTM_MAX_PASSKEY_VAL(999999(0xF423F)).
**
*******************************************************************************/
extern void SMP_PasskeyReply (BD_ADDR bd_addr, UINT8 res, UINT32 passkey);
/*******************************************************************************
**
** Function SMP_SetStaticPasskey
**
** Description This function is called to set static passkey
**
**
** Parameters: add - set static passkey when add is TRUE
** clear static passkey when add is FALSE
** passkey - static passkey
**
**
*******************************************************************************/
extern void SMP_SetStaticPasskey (BOOLEAN add, UINT32 passkey);
/*******************************************************************************
**
** Function SMP_ConfirmReply
**
** Description This function is called after Security Manager submitted
** numeric comparison request to the application.
**
** Parameters: bd_addr - Address of the device with which numeric
** comparison was requested
** res - comparison result SMP_SUCCESS if success
**
*******************************************************************************/
extern void SMP_ConfirmReply (BD_ADDR bd_addr, UINT8 res);
/*******************************************************************************
**
** Function SMP_OobDataReply
**
** Description This function is called to provide the OOB data for
** SMP in response to SMP_OOB_REQ_EVT
**
** Parameters: bd_addr - Address of the peer device
** res - result of the operation SMP_SUCCESS if success
** p_data - SM Randomizer C.
**
*******************************************************************************/
extern void SMP_OobDataReply(BD_ADDR bd_addr, tSMP_STATUS res, UINT8 len,
UINT8 *p_data);
/*******************************************************************************
**
** Function SMP_SecureConnectionOobDataReply
**
** Description This function is called to provide the SC OOB data for
** SMP in response to SMP_SC_OOB_REQ_EVT
**
** Parameters: p_data - pointer to the data
**
*******************************************************************************/
extern void SMP_SecureConnectionOobDataReply(UINT8 *p_data);
/*******************************************************************************
**
** Function SMP_Encrypt
**
** Description This function is called to encrypt the data with the specified
** key
**
** Parameters: key - Pointer to key key[0] conatins the MSB
** key_len - key length
** plain_text - Pointer to data to be encrypted
** plain_text[0] conatins the MSB
** pt_len - plain text length
** p_out - pointer to the encrypted outputs
**
** Returns Boolean - TRUE: encryption is successful
*******************************************************************************/
extern BOOLEAN SMP_Encrypt (UINT8 *key, UINT8 key_len,
UINT8 *plain_text, UINT8 pt_len,
tSMP_ENC *p_out);
/*******************************************************************************
**
** Function SMP_KeypressNotification
**
** Description This function is called to notify SM about Keypress Notification.
**
** Parameters: bd_addr - Address of the device to send keypress
** notification to
** value - keypress notification parameter value
**
*******************************************************************************/
extern void SMP_KeypressNotification (BD_ADDR bd_addr, UINT8 value);
/*******************************************************************************
**
** Function SMP_CreateLocalSecureConnectionsOobData
**
** Description This function is called to start creation of local SC OOB
** data set (tSMP_LOC_OOB_DATA).
**
** Returns Boolean - TRUE: creation of local SC OOB data set started.
*******************************************************************************/
extern BOOLEAN SMP_CreateLocalSecureConnectionsOobData (void);
#ifdef __cplusplus
}
#endif
#endif /* SMP_API_H */
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