/*************************************************************************//**
*****************************************************************************/
static void nwkRouteSendRouteError(uint16_t src, uint16_t dst,
uint8_t multicast)
{
NwkFrame_t *frame;
NwkCommandRouteError_t *command;
if (NULL == (frame = nwkFrameAlloc())) {
return;
}
nwkFrameCommandInit(frame);
frame->size += sizeof(NwkCommandRouteError_t);
frame->tx.confirm = NULL;
frame->header.nwkDstAddr = src;
command = (NwkCommandRouteError_t *)frame->payload;
command->id = NWK_COMMAND_ROUTE_ERROR;
command->srcAddr = src;
command->dstAddr = dst;
command->multicast = multicast;
nwkTxFrame(frame);
}
/*************************************************************************//**
*****************************************************************************/
static void nwkRouteDiscoverySendReply(NwkRouteDiscoveryTableEntry_t *entry, uint8_t flq, uint8_t rlq)
{
NwkFrame_t *req;
NwkCommandRouteReply_t *command;
if (NULL == (req = nwkFrameAlloc()))
return;
nwkFrameCommandInit(req);
req->size += sizeof(NwkCommandRouteReply_t);
req->tx.confirm = NULL;
req->tx.control = NWK_TX_CONTROL_DIRECT_LINK;
req->header.nwkDstAddr = entry->senderAddr;
command = (NwkCommandRouteReply_t *)req->payload;
command->id = NWK_COMMAND_ROUTE_REPLY;
command->srcAddr = entry->srcAddr;
command->dstAddr = entry->dstAddr;
command->multicast = entry->multicast;
command->forwardLinkQuality = flq;
command->reverseLinkQuality = rlq;
nwkTxFrame(req);
}
/*************************************************************************//**
*****************************************************************************/
static bool nwkRouteDiscoverySendRequest(NwkRouteDiscoveryTableEntry_t *entry, uint8_t lq)
{
NwkFrame_t *req;
NwkCommandRouteRequest_t *command;
if (NULL == (req = nwkFrameAlloc()))
return false;
nwkFrameCommandInit(req);
req->size += sizeof(NwkCommandRouteRequest_t);
req->tx.confirm = NULL;
req->header.nwkFcf.linkLocal = 1;
req->header.nwkDstAddr = NWK_BROADCAST_ADDR;
command = (NwkCommandRouteRequest_t *)req->payload;
command->id = NWK_COMMAND_ROUTE_REQUEST;
command->srcAddr = entry->srcAddr;
command->dstAddr = entry->dstAddr;
command->multicast = entry->multicast;
command->linkQuality = lq;
nwkTxFrame(req);
return true;
}
/*************************************************************************//**
* @brief Prepares and send outgoing frame based on the request @a req
* parameters
* @param[in] req Pointer to the request parameters
*****************************************************************************/
static void nwkDataReqSendFrame(NWK_DataReq_t *req)
{
NwkFrame_t *frame;
if (NULL == (frame = nwkFrameAlloc())) {
req->state = NWK_DATA_REQ_STATE_CONFIRM;
req->status = NWK_OUT_OF_MEMORY_STATUS;
return;
}
req->frame = frame;
req->state = NWK_DATA_REQ_STATE_WAIT_CONF;
frame->tx.confirm = nwkDataReqTxConf;
frame->tx.control = req->options &
NWK_OPT_BROADCAST_PAN_ID ?
NWK_TX_CONTROL_BROADCAST_PAN_ID
: 0;
frame->header.nwkFcf.ackRequest = req->options &
NWK_OPT_ACK_REQUEST ? 1 : 0;
frame->header.nwkFcf.linkLocal = req->options &
NWK_OPT_LINK_LOCAL ? 1 : 0;
#ifdef NWK_ENABLE_SECURITY
frame->header.nwkFcf.security = req->options &
NWK_OPT_ENABLE_SECURITY ? 1 : 0;
#endif
#ifdef NWK_ENABLE_MULTICAST
frame->header.nwkFcf.multicast = req->options &
NWK_OPT_MULTICAST ? 1 : 0;
if (frame->header.nwkFcf.multicast) {
NwkFrameMulticastHeader_t *mcHeader
= (NwkFrameMulticastHeader_t *)frame->payload;
mcHeader->memberRadius = req->memberRadius;
mcHeader->maxMemberRadius = req->memberRadius;
mcHeader->nonMemberRadius = req->nonMemberRadius;
mcHeader->maxNonMemberRadius = req->nonMemberRadius;
frame->payload += sizeof(NwkFrameMulticastHeader_t);
frame->size += sizeof(NwkFrameMulticastHeader_t);
}
#endif
frame->header.nwkSeq = ++nwkIb.nwkSeqNum;
frame->header.nwkSrcAddr = nwkIb.addr;
frame->header.nwkDstAddr = req->dstAddr;
frame->header.nwkSrcEndpoint = req->srcEndpoint;
frame->header.nwkDstEndpoint = req->dstEndpoint;
memcpy(frame->payload, req->data, req->size);
frame->size += req->size;
nwkTxFrame(frame);
}
/*************************************************************************//**
*****************************************************************************/
void nwkRouteFrame(NwkFrame_t *frame)
{
NwkFrameHeader_t *header = &frame->header;
if (NWK_ROUTE_UNKNOWN !=
NWK_RouteNextHop(header->nwkDstAddr,
header->nwkFcf.multicast)) {
frame->tx.confirm = NULL;
frame->tx.control = NWK_TX_CONTROL_ROUTING;
nwkTxFrame(frame);
} else {
nwkRouteSendRouteError(header->nwkSrcAddr, header->nwkDstAddr,
header->nwkFcf.multicast);
nwkFrameFree(frame);
}
}
/*************************************************************************//**
*****************************************************************************/
static void nwkRouteDiscoveryDone(NwkRouteDiscoveryTableEntry_t *entry, bool status)
{
NwkFrame_t *frame = NULL;
while (NULL != (frame = nwkFrameNext(frame)))
{
if (NWK_RD_STATE_WAIT_FOR_ROUTE != frame->state)
continue;
if (entry->dstAddr != frame->header.nwkDstAddr ||
entry->multicast != frame->header.nwkFcf.multicast)
continue;
if (status)
nwkTxFrame(frame);
else
nwkTxConfirm(frame, NWK_NO_ROUTE_STATUS);
}
}
static void nwkDataReqSendFrame(NWK_DataReq_t *req)
{
NwkFrame_t *frame;
uint8_t size = req->size;
#ifdef NWK_ENABLE_SECURITY
if (req->options & NWK_OPT_ENABLE_SECURITY)
size += NWK_SECURITY_MIC_SIZE;
#endif
if (NULL == (frame = nwkFrameAlloc(size)))
{
req->state = NWK_DATA_REQ_STATE_CONFIRM;
req->status = NWK_OUT_OF_MEMORY_STATUS;
return;
}
req->frame = frame;
req->state = NWK_DATA_REQ_STATE_WAIT_CONF;
frame->tx.confirm = nwkDataReqTxConf;
frame->tx.control = req->options & NWK_OPT_BROADCAST_PAN_ID ? NWK_TX_CONTROL_BROADCAST_PAN_ID : 0;
frame->data.header.nwkFcf.ackRequest = req->options & NWK_OPT_ACK_REQUEST ? 1 : 0;
#ifdef NWK_ENABLE_SECURITY
frame->data.header.nwkFcf.securityEnabled = req->options & NWK_OPT_ENABLE_SECURITY ? 1 : 0;
#endif
frame->data.header.nwkFcf.linkLocal = req->options & NWK_OPT_LINK_LOCAL ? 1 : 0;
frame->data.header.nwkFcf.reserved = 0;
frame->data.header.nwkSeq = ++nwkIb.nwkSeqNum;
frame->data.header.nwkSrcAddr = nwkIb.addr;
frame->data.header.nwkDstAddr = req->dstAddr;
frame->data.header.nwkSrcEndpoint = req->srcEndpoint;
frame->data.header.nwkDstEndpoint = req->dstEndpoint;
memcpy(frame->data.payload, req->data, req->size);
nwkTxFrame(frame);
}
/*************************************************************************//**
*****************************************************************************/
static void nwkRxSendAck(NwkFrame_t *frame)
{
NwkFrame_t *ack;
NwkCommandAck_t *command;
if (NULL == (ack = nwkFrameAlloc()))
return;
nwkFrameCommandInit(ack);
ack->size += sizeof(NwkCommandAck_t);
ack->tx.confirm = NULL;
ack->header.nwkFcf.security = frame->header.nwkFcf.security;
ack->header.nwkDstAddr = frame->header.nwkSrcAddr;
command = (NwkCommandAck_t *)ack->payload;
command->id = NWK_COMMAND_ACK;
command->control = nwkRxAckControl;
command->seq = frame->header.nwkSeq;
nwkTxFrame(ack);
}