a2dp_sd_security.c

CSR蓝牙MP3播放USB DONGLE源码

/****************************************************************************
Copyright (C) Cambridge Silicon Radio Ltd. 2004-2006
Part of BlueLab 3.5.2-release

FILE NAME
    a2dp_sd_security.c

DESCRIPTION
    Handle security related functionality

NOTES
    
*/


/****************************************************************************
    Header files
*/
#include "a2dp_sd_private.h"
#include "a2dp_sd_security.h"

#include <bdaddr.h>
#include <connection.h>
#include <ps.h>


/****************************************************************************
NAME    
    a2dpSdSecurityInit
    
DESCRIPTION
    Set the security settings for this application

RETURNS
    
*/
void a2dpSdSecurityInit(void)
{
    /* Disable SDP security for people browsing our services */
    ConnectionSmSetSdpSecurityIn(TRUE);

    /* Disable AVDTP security on incoming connections */
    ConnectionSmRegisterIncomingService(protocol_l2cap, AVDTP_PSM, secl_none);

    /* Disable AVCTP security on incoming connections */
    ConnectionSmRegisterIncomingService(protocol_l2cap, AVCTP_PSM, secl_none);
}


/****************************************************************************
NAME    
    a2dpSdHandlePinCodeInd
    
DESCRIPTION
    Respond to a PIN code request with the stored PIN.

RETURNS
    
*/
void a2dpSdHandlePinCodeInd(const CL_SM_PIN_CODE_IND_T *ind)
{
    uint16 pin_length = 0;
    uint8 pin[16];

    /* Do we have a fixed pin in PS, if not reject pairing */
    if ((pin_length = PsFullRetrieve(PSKEY_FIXED_PIN, pin, 16)) == 0 || pin_length > 16)
        /* Set length to 0 indicating we're rejecting the PIN request */
        pin_length = 0; 

    /* Respond to the PIN code request */
    ConnectionSmPinCodeResponse(&ind->bd_addr, pin_length, pin); 
}


/****************************************************************************
NAME    
    a2dpSdHandleAuthoriseInd
    
DESCRIPTION
    Respond to an authorise indication from the connection library.

RETURNS
    
*/
void a2dpSdHandleAuthoriseInd(const a2dpSourceDongleTaskData *theApp, const CL_SM_AUTHORISE_IND_T *ind)
{
    bool accept = 0;
    
    /* Check if the device is connecting to a protocol supported by this app. */
    if ((ind->protocol_id == protocol_l2cap) && (ind->channel == AVDTP_PSM))
    {
        accept = 1;
    }
    else if ((ind->protocol_id == protocol_l2cap) && (ind->channel == AVCTP_PSM) &&
        BdaddrIsSame(&theApp->av_sink_addr, &ind->bd_addr))
    {
        /* If the authorise req isn't from the device we're connected to then reject it */
        accept = 1;
    }

    /* Send the response to the connection lib */
    ConnectionSmAuthoriseResponse(&ind->bd_addr, ind->protocol_id, ind->channel, ind->incoming, accept);
}


/****************************************************************************
NAME    
    a2dpSdHandleAuthoriseIndReject
    
DESCRIPTION
    Reject the authorise request immediately, the application is in the 
    wrong state.

RETURNS
    
*/
void a2dpSdHandleAuthoriseIndReject(const CL_SM_AUTHORISE_IND_T *ind)
{
    /* Reject the authorise request outright, we're in the wrong state */
    ConnectionSmAuthoriseResponse(&ind->bd_addr, ind->protocol_id, ind->channel, ind->incoming, 0);
}