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FreeRTOS+TCP : renewing DHCP lease while network is down (#53)

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Co-authored-by: Hein Tibosch <hein@htibosch.net>
Co-authored-by: Gary Wicker <14828980+gkwicker@users.noreply.github.com>
This commit is contained in:
Hein Tibosch
2020-05-06 14:16:56 -04:00
committed by GitHub
parent d95624c5d6
commit 5003d17fed
1 changed files with 17 additions and 10 deletions
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27
FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/FreeRTOS_DHCP.c
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@ -488,18 +488,25 @@ BaseType_t xGivingUp = pdFALSE;
case eLeasedAddress :
/* Resend the request at the appropriate time to renew the lease. */
prvCreateDHCPSocket();
if( xDHCPData.xDHCPSocket != NULL )
if( FreeRTOS_IsNetworkUp() )
{
xDHCPData.xDHCPTxTime = xTaskGetTickCount();
xDHCPData.xDHCPTxPeriod = dhcpINITIAL_DHCP_TX_PERIOD;
prvSendDHCPRequest( );
xDHCPData.eDHCPState = eWaitingAcknowledge;
/* Resend the request at the appropriate time to renew the lease. */
prvCreateDHCPSocket();
/* From now on, we should be called more often */
vIPReloadDHCPTimer( dhcpINITIAL_TIMER_PERIOD );
if( xDHCPData.xDHCPSocket != NULL )
{
xDHCPData.xDHCPTxTime = xTaskGetTickCount();
xDHCPData.xDHCPTxPeriod = dhcpINITIAL_DHCP_TX_PERIOD;
prvSendDHCPRequest();
xDHCPData.eDHCPState = eWaitingAcknowledge;
/* From now on, we should be called more often */
vIPReloadDHCPTimer( dhcpINITIAL_TIMER_PERIOD );
}
}
else
{
vIPReloadDHCPTimer( pdMS_TO_TICKS( dhcpINITIAL_DHCP_TX_PERIOD ) );
}
break;