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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 "bt_target.h"
#define SMP_PIN_CODE_LEN_MAX PIN_CODE_LEN
#define SMP_PIN_CODE_LEN_MIN 6
/* 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_COMPLT_EVT 6 /* SMP complete 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_PAIR_FAILURE_MAX SMP_REPEATED_ATTEMPTS
/* self defined error code */
#define SMP_PAIR_INTERNAL_ERR 0x0A
#define SMP_UNKNOWN_IO_CAP 0x0B /* unknown IO capability, unable to decide associatino model */
#define SMP_INIT_FAIL 0x0C
#define SMP_CONFIRM_FAIL 0x0D
#define SMP_BUSY 0x0E
#define SMP_ENC_FAIL 0x0F
#define SMP_STARTED 0x10
#define SMP_RSP_TIMEOUT 0x11
#define SMP_DIV_NOT_AVAIL 0x12
#define SMP_FAIL 0x13 /* unspecified failed reason */
#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;
#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_AUTH_MASK (SMP_AUTH_GEN_BOND|SMP_AUTH_YN_BIT)
#define SMP_AUTH_BOND SMP_AUTH_GEN_BOND
#define SMP_AUTH_NB_ENC_ONLY 0x00 //(SMP_AUTH_MASK | BTM_AUTH_SP_NO) /* no MITM, No Bonding, Encryptino only */
#define SMP_AUTH_NB_IOCAP (SMP_AUTH_NO_BOND | SMP_AUTH_YN_BIT) /* MITM, No Bonding, Use IO Capability
to detrermine authenticaion procedure */
#define SMP_AUTH_GB_ENC_ONLY (SMP_AUTH_GEN_BOND ) /* no MITM, General Bonding, Encryptino only */
#define SMP_AUTH_GB_IOCAP (SMP_AUTH_GEN_BOND | SMP_AUTH_YN_BIT) /* MITM, General Bonding, Use IO Capability
to detrermine authenticaion procedure */
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;
/* 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 */
typedef UINT8 tSMP_KEYS;
/* 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)
/* 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
{
UINT8 reason;
UINT8 sec_level;
BOOLEAN is_pair_cancel;
} tSMP_CMPL;
typedef union
{
UINT32 passkey;
tSMP_IO_REQ io_req; /* IO request */
tSMP_CMPL cmplt;
}tSMP_EVT_DATA;
/* AES Encryption output */
typedef struct
{
UINT8 status;
UINT8 param_len;
UINT16 opcode;
UINT8 param_buf[BT_OCTET16_LEN];
} tSMP_ENC;
/* Simple Pairing Events. Called by the stack when Simple Pairing 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
**
*******************************************************************************/
SMP_API extern void SMP_Init(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
**
*******************************************************************************/
SMP_API extern UINT8 SMP_SetTraceLevel (UINT8 new_level);
/*******************************************************************************
**
** Function SMP_Register
**
** Description This function register for the SMP service callback.
**
** Returns void
**
*******************************************************************************/
SMP_API 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.
**
*******************************************************************************/
SMP_API extern tSMP_STATUS SMP_Pair (BD_ADDR bd_addr);
/*******************************************************************************
**
** Function SMP_PairCancel
**
** Description This function is called to cancel a SMP pairing.
**
** Returns TRUE - pairing cancelled
**
*******************************************************************************/
SMP_API 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
**
*******************************************************************************/
SMP_API 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 BTM_SUCCESS if success
** passkey - numeric value in the range of
** BTM_MIN_PASSKEY_VAL(0) - BTM_MAX_PASSKEY_VAL(999999(0xF423F)).
**
*******************************************************************************/
SMP_API extern void SMP_PasskeyReply (BD_ADDR bd_addr, UINT8 res, UINT32 passkey);
/*******************************************************************************
**
** Function SMP_OobDataReply
**
** Description This function is called to provide the OOB data for
** Simple Pairing in response to BTM_SP_RMT_OOB_EVT
**
** Parameters: bd_addr - Address of the peer device
** res - result of the operation SMP_SUCCESS if success
** p_data - simple pairing Randomizer C.
**
*******************************************************************************/
SMP_API extern void SMP_OobDataReply(BD_ADDR bd_addr, tSMP_STATUS res, UINT8 len,
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
*******************************************************************************/
SMP_API extern BOOLEAN SMP_Encrypt (UINT8 *key, UINT8 key_len,
UINT8 *plain_text, UINT8 pt_len,
tSMP_ENC *p_out);
#ifdef __cplusplus
}
#endif
#endif /* SMP_API_H */
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