我的问题是：
Livolo开关具有自己的Zigbee门。我想使用CC2531 USB软件狗从zigbee2mqtt连接它们。通常它可以工作，但是当我打开/关闭开关按钮（在物理设备上）时，该开关会发送错误的ZCL程序包。
我绝对是微控制器编程和Zigbee架构中的新手。因此，我希望有人能帮助我并回答以下问题：
我使用Z-STACK-HOME 1.2.2a固件并按照其中的说明进行编译： https://github.com/Koenkk/Z-Stack-firmware/blob/master/coordinator/Z-Stack_Home_1.2/COMPILE.md
// Malformed ZCL package // header 0x7c, // [0111 1100] // 01 - frame type = "Command is specific or local to a cluster" // 1 - manufacturer spec = manufacturer code present // 1 - direction = "from server to client" // 1 - disable default response // 100 - reserved 0xd2, 0x15, // manufacturer 0xd8, // sequence 0x00, // read attrs command // endpoint adress 0x12, 0x0f, 0x05, 0x18, 0x00, 0x4b, 0x12, 0x00, 0x22, 0x00, // ????? need more data from another switches 0x03 // 0x00|0x01|0x02|0x03 - switch state
upd： 我认为，我可以在afIncomingData函数的AF.c文件中拦截消息并在afBuildMSGIncoming中进行修复。
所以现在我希望有人可以为我提供正确的消息格式。可以处理标准的ZCL解析器。
void afIncomingData( aps_FrameFormat_t *aff, zAddrType_t *SrcAddress, uint16 SrcPanId,
NLDE_Signal_t *sig, uint8 nwkSeqNum, uint8 SecurityUse,
uint32 timestamp, uint8 radius )
{
endPointDesc_t *epDesc = NULL;
epList_t *pList = epList;
#if !defined ( APS_NO_GROUPS )
uint8 grpEp = APS_GROUPS_EP_NOT_FOUND;
#endif
if ( ((aff->FrmCtrl & APS_DELIVERYMODE_MASK) == APS_FC_DM_GROUP) )
{
#if !defined ( APS_NO_GROUPS )
// Find the first endpoint for this group
grpEp = aps_FindGroupForEndpoint( aff->GroupID, APS_GROUPS_FIND_FIRST );
if ( grpEp == APS_GROUPS_EP_NOT_FOUND ) {
// No endpoint found, default to endpoint 1.
// In the original source code there is a return here.
// This prevent the messags from being forwarded.
// For our use-case we want to capture all messages.
// Even if the coordinator is not in the group.
epDesc = afFindEndPointDesc( 1 );
}
else {
epDesc = afFindEndPointDesc( grpEp );
}
if ( epDesc == NULL )
return; // Endpoint descriptor not found
pList = afFindEndPointDescList( epDesc->endPoint );
#else
return; // Not supported
#endif
}
else if ( aff->DstEndPoint == AF_BROADCAST_ENDPOINT )
{
// Set the list
if ( pList != NULL )
{
epDesc = pList->epDesc;
}
}
else if ( aff->DstEndPoint == 10 || aff->DstEndPoint == 11 ) {
if ( (epDesc = afFindEndPointDesc( 1 )) )
{
pList = afFindEndPointDescList( epDesc->endPoint );
}
}
else if ( (epDesc = afFindEndPointDesc( aff->DstEndPoint )) )
{
pList = afFindEndPointDescList( epDesc->endPoint );
}
while ( epDesc )
{
uint16 epProfileID = 0xFFFE; // Invalid Profile ID
if ( pList->pfnDescCB )
{
uint16 *pID = (uint16 *)(pList->pfnDescCB(
AF_DESCRIPTOR_PROFILE_ID, epDesc->endPoint ));
if ( pID )
{
epProfileID = *pID;
osal_mem_free( pID );
}
}
else if ( epDesc->simpleDesc )
{
epProfileID = epDesc->simpleDesc->AppProfId;
}
// First part of verification is to make sure that:
// the local Endpoint ProfileID matches the received ProfileID OR
// the message is specifically send to ZDO (this excludes the broadcast endpoint) OR
// if the Wildcard ProfileID is received the message should not be sent to ZDO endpoint
if ( (aff->ProfileID == epProfileID) ||
((epDesc->endPoint == ZDO_EP) && (aff->ProfileID == ZDO_PROFILE_ID)) ||
((epDesc->endPoint != ZDO_EP) && ( aff->ProfileID == ZDO_WILDCARD_PROFILE_ID )) )
{
// Save original endpoint
uint8 endpoint = aff->DstEndPoint;
// overwrite with descriptor's endpoint
aff->DstEndPoint = epDesc->endPoint;
afBuildMSGIncoming( aff, epDesc, SrcAddress, SrcPanId, sig,
nwkSeqNum, SecurityUse, timestamp, radius );
// Restore with original endpoint
aff->DstEndPoint = endpoint;
}
if ( ((aff->FrmCtrl & APS_DELIVERYMODE_MASK) == APS_FC_DM_GROUP) )
{
#if !defined ( APS_NO_GROUPS )
// Find the next endpoint for this group
grpEp = aps_FindGroupForEndpoint( aff->GroupID, grpEp );
if ( grpEp == APS_GROUPS_EP_NOT_FOUND )
return; // No endpoint found
epDesc = afFindEndPointDesc( grpEp );
if ( epDesc == NULL )
return; // Endpoint descriptor not found
pList = afFindEndPointDescList( epDesc->endPoint );
#else
return;
#endif
}
else if ( aff->DstEndPoint == AF_BROADCAST_ENDPOINT )
{
pList = pList->nextDesc;
if ( pList )
epDesc = pList->epDesc;
else
epDesc = NULL;
}
else
epDesc = NULL;
}
}
static void afBuildMSGIncoming( aps_FrameFormat_t *aff, endPointDesc_t *epDesc,
zAddrType_t *SrcAddress, uint16 SrcPanId, NLDE_Signal_t *sig,
uint8 nwkSeqNum, uint8 SecurityUse, uint32 timestamp, uint8 radius )
{
afIncomingMSGPacket_t *MSGpkt;
const uint8 len = sizeof( afIncomingMSGPacket_t ) + aff->asduLength;
uint8 *asdu = aff->asdu;
MSGpkt = (afIncomingMSGPacket_t *)osal_msg_allocate( len );
if ( MSGpkt == NULL )
{
return;
}
MSGpkt->hdr.event = AF_INCOMING_MSG_CMD;
MSGpkt->groupId = aff->GroupID;
MSGpkt->clusterId = aff->ClusterID;
afCopyAddress( &MSGpkt->srcAddr, SrcAddress );
MSGpkt->srcAddr.endPoint = aff->SrcEndPoint;
MSGpkt->endPoint = epDesc->endPoint;
MSGpkt->wasBroadcast = aff->wasBroadcast;
MSGpkt->LinkQuality = sig->LinkQuality;
MSGpkt->correlation = sig->correlation;
MSGpkt->rssi = sig->rssi;
MSGpkt->SecurityUse = SecurityUse;
MSGpkt->timestamp = timestamp;
MSGpkt->nwkSeqNum = nwkSeqNum;
MSGpkt->macSrcAddr = aff->macSrcAddr;
MSGpkt->macDestAddr = aff->macDestAddr;
MSGpkt->srcAddr.panId = SrcPanId;
MSGpkt->cmd.TransSeqNumber = 0;
MSGpkt->cmd.DataLength = aff->asduLength;
MSGpkt->radius = radius;
if ( MSGpkt->cmd.DataLength )
{
MSGpkt->cmd.Data = (uint8 *)(MSGpkt + 1);
osal_memcpy( MSGpkt->cmd.Data, asdu, MSGpkt->cmd.DataLength );
}
else
{
MSGpkt->cmd.Data = NULL;
}
#if defined ( MT_AF_CB_FUNC )
// If ZDO or SAPI have registered for this endpoint, dont intercept it here
if (AFCB_CHECK(CB_ID_AF_DATA_IND, *(epDesc->task_id)))
{
MT_AfIncomingMsg( (void *)MSGpkt );
// Release the memory.
osal_msg_deallocate( (void *)MSGpkt );
}
else
#endif
{
// Send message through task message.
osal_msg_send( *(epDesc->task_id), (uint8 *)MSGpkt );
}
}
答案 0 :(得分：3)
我认为您没有正确解码帧控制字节。看看我编写的一些代码，我将其解释如下：
0x7c, // [0111 1100]
// 011 - reserved
// 1 - disable default response
// 1 - direction = "from server to client"
// 1 - manufacturer spec = manufacturer code present
// 00 - frame type = "Command acts across entire profile"
这是基于旧的ZCL规范（大约在2008年？），也许保留的位在规范的更高版本中具有某些意义。
我相信制造商特定的位表明这不是标准的Zigbee命令（读取属性）。如果它是“读取属性”，我认为它后面应该有偶数个字节（16位属性ID）。
该帧的源端点和目标端点，配置文件ID和群集ID是什么？
更新：
看来您可以修改afIncomingData()来查看aff的字段以标识此确切的消息类型（帧控制，端点，群集，配置文件），然后将其交给您自己的函数进行处理（并在必要时回复）。
但是我还要看一下MT_AF_CB_FUNC和MT_AfIncomingMsg()的文档，看看这是否是识别要在自己的代码中处理的框架的“官方”方法。
答案 1 :(得分：3)
在AF.c文件中的函数afIncomingData和afBuildMSGIncoming中添加了标有
的大块#if defined ( LIVOLO_SUPPORT )
#endif
在afIncomingData中，我添加：
#if defined ( LIVOLO_SUPPORT )
else if ( aff->DstEndPoint == 0x08 )
{
if ( (epDesc = afFindEndPointDesc( 1 )) )
{
pList = afFindEndPointDescList( epDesc->endPoint );
}
}
#endif
已将过滤邮件发送到未知的destEndpoint
并在afBuildMSGIncoming函数中：
#if defined ( LIVOLO_SUPPORT )
uint8 fixedPackage[] = {
0x18, 0xd8, 0x01, // header
0x00, 0x00, // attrId
0x00, // success
0x10, // boolean
0x00
};
if (aff->SrcEndPoint == 0x06 && aff->DstEndPoint == 0x01
&& aff->ClusterID == 0x0001 && aff->ProfileID == 0x0104) {
const uint8 mlfrmdHdr[] = { 0x7c, 0xd2, 0x15, 0xd8, 0x00 };
if (osal_memcmp(asdu, mlfrmdHdr, 5) == TRUE) {
fixedPackage[7] = asdu[aff->asduLength - 1];
MSGpkt->cmd.DataLength = 8; // sizeof(fixedPackage)
MSGpkt->clusterId = 0x06; // genOnOff
asdu = fixedPackage;
}
}
#endif
将不受支持的软件包更改为readAttrResp软件包。