/*---------------------------------------------------------------------------*/
static void
packet_input(void)
{
// printf("Tcpip: packet_input");
// rpl_trace(rpl_dataptr_from_packetbuf());
#if UIP_CONF_IP_FORWARD
if(uip_len > 0) {
tcpip_is_forwarding = 1;
if(uip_fw_forward() == UIP_FW_LOCAL) {
tcpip_is_forwarding = 0;
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output();
#else /* UIP_CONF_TCP_SPLIT */
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else
PRINTF("tcpip packet_input forward output len %d\n", uip_len);
tcpip_output();
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
tcpip_is_forwarding = 0;
}
#else /* UIP_CONF_IP_FORWARD */
if(uip_len > 0) {
// printf("Tcpip: packet_input 2");
// rpl_trace(rpl_dataptr_from_packetbuf());
if(packetbuf_attr(PACKETBUF_ATTR_IS_ANYCAST)) {
anycast_packet_received();
}
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
// printf("Tcpip: packet_input 3");
// rpl_trace(rpl_dataptr_from_packetbuf());
#if UIP_CONF_TCP_SPLIT
uip_split_output();
#else /* UIP_CONF_TCP_SPLIT */
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else
PRINTF("tcpip packet_input output len %d\n", uip_len);
tcpip_output();
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
#endif /* UIP_CONF_IP_FORWARD */
}
/*---------------------------------------------------------------------------*/
static void
packet_input(void)
{
if(uip_len > 0) {
#if UIP_CONF_IP_FORWARD
tcpip_is_forwarding = 1;
if(uip_fw_forward() != UIP_FW_LOCAL) {
tcpip_is_forwarding = 0;
return;
}
tcpip_is_forwarding = 0;
#endif /* UIP_CONF_IP_FORWARD */
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output();
#else /* UIP_CONF_TCP_SPLIT */
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else /* NETSTACK_CONF_WITH_IPV6 */
PRINTF("tcpip packet_input output len %d\n", uip_len);
tcpip_output();
#endif /* NETSTACK_CONF_WITH_IPV6 */
#endif /* UIP_CONF_TCP_SPLIT */
}
}
}
/*---------------------------------------------------------------------------*/
static uint8_t
packet_input(struct net_buf *buf)
{
uint8_t ret = 0;
#if UIP_CONF_IP_FORWARD
if(uip_len > 0) {
tcpip_is_forwarding = 1;
if(uip_fw_forward() == UIP_FW_LOCAL) {
tcpip_is_forwarding = 0;
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output();
#else /* UIP_CONF_TCP_SPLIT */
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else
PRINTF("tcpip packet_input forward output len %d\n", uip_len);
tcpip_output();
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
tcpip_is_forwarding = 0;
}
#else /* UIP_CONF_IP_FORWARD */
if(uip_len(buf) > 0) {
check_for_tcp_syn(buf);
ret = uip_input(buf);
if(ret && uip_len(buf) > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output(buf);
#else /* UIP_CONF_TCP_SPLIT */
#if NETSTACK_CONF_WITH_IPV6
PRINTF("tcpip packet_input output len %d\n", uip_len(buf));
ret = tcpip_ipv6_output(buf);
#else
PRINTF("tcpip packet_input output len %d\n", uip_len(buf));
ret = tcpip_output(buf, NULL);
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
#endif /* UIP_CONF_IP_FORWARD */
return ret;
}
/** Processes Incoming packets to the server from the connected RNDIS device, creating responses as needed. */
static void uIPManagement_ProcessIncomingPacket(void)
{
/* If no packet received, exit processing routine */
if (!(RNDIS_Host_IsPacketReceived(&Ethernet_RNDIS_Interface)))
return;
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
/* Read the Incoming packet straight into the UIP packet buffer */
RNDIS_Host_ReadPacket(&Ethernet_RNDIS_Interface, uip_buf, &uip_len);
/* If the packet contains an Ethernet frame, process it */
if (uip_len > 0)
{
switch (((struct uip_eth_hdr*)uip_buf)->type)
{
case HTONS(UIP_ETHTYPE_IP):
/* Filter packet by MAC destination */
uip_arp_ipin();
/* Process Incoming packet */
uip_input();
/* If a response was generated, send it */
if (uip_len > 0)
{
/* Add destination MAC to outgoing packet */
uip_arp_out();
uip_split_output();
}
break;
case HTONS(UIP_ETHTYPE_ARP):
/* Process ARP packet */
uip_arp_arpin();
/* If a response was generated, send it */
if (uip_len > 0)
uip_split_output();
break;
}
}
LEDs_SetAllLEDs(LEDMASK_USB_READY | ((HaveIPConfiguration) ? LEDMASK_UIP_READY_CONFIG : LEDMASK_UIP_READY_NOCONFIG));
}
/*---------------------------------------------------------------------------*/
static void
packet_input(void)
{
#if UIP_CONF_IP_FORWARD
if(uip_len > 0) {
tcpip_is_forwarding = 1;
if(uip_fw_forward() == UIP_FW_LOCAL) {
tcpip_is_forwarding = 0;
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output();
#else /* UIP_CONF_TCP_SPLIT */
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else
PRINTF("tcpip packet_input forward output len %d\n", uip_len);
tcpip_output();
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
tcpip_is_forwarding = 0;
}
#else /* UIP_CONF_IP_FORWARD */
if(uip_len > 0) {
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output();
#else /* UIP_CONF_TCP_SPLIT */
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else
PRINTF("tcpip packet_input output len %d\n", uip_len);
tcpip_output();
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
#endif /* UIP_CONF_IP_FORWARD */
}
/** Manages the currently open network connections, including TCP and (if enabled) UDP. */
static void uIPManagement_ManageConnections(void)
{
/* Poll TCP connections for more data to send back to the host */
for (uint8_t i = 0; i < UIP_CONNS; i++)
{
uip_poll_conn(&uip_conns[i]);
/* If a response was generated, send it */
if (uip_len > 0)
{
/* Add destination MAC to outgoing packet */
uip_arp_out();
/* Split and send the outgoing packet */
uip_split_output();
}
}
/* Manage open connections for timeouts */
if (timer_expired(&ConnectionTimer))
{
timer_reset(&ConnectionTimer);
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
for (uint8_t i = 0; i < UIP_CONNS; i++)
{
/* Run periodic connection management for each TCP connection */
uip_periodic(i);
/* If a response was generated, send it */
if (uip_len > 0)
{
/* Add destination MAC to outgoing packet */
uip_arp_out();
/* Split and send the outgoing packet */
uip_split_output();
}
}
#if defined(ENABLE_DHCP_CLIENT)
for (uint8_t i = 0; i < UIP_UDP_CONNS; i++)
{
/* Run periodic connection management for each UDP connection */
uip_udp_periodic(i);
/* If a response was generated, send it */
if (uip_len > 0)
{
/* Add destination MAC to outgoing packet */
uip_arp_out();
/* Split and send the outgoing packet */
uip_split_output();
}
}
#endif
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
/* Manage ARP cache refreshing */
if (timer_expired(&ARPTimer))
{
timer_reset(&ARPTimer);
uip_arp_timer();
}
}
/** Processes Incoming packets to the server from the connected RNDIS device, creating responses as needed. */
static void uIPManagement_ProcessIncomingPacket(void)
{
/* Determine which USB mode the system is currently initialized in */
if (USB_CurrentMode == USB_MODE_Device)
{
/* If no packet received, exit processing routine */
if (!(RNDIS_Device_IsPacketReceived(&Ethernet_RNDIS_Interface_Device)))
return;
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
/* Read the Incoming packet straight into the UIP packet buffer */
RNDIS_Device_ReadPacket(&Ethernet_RNDIS_Interface_Device, uip_buf, &uip_len);
}
else
{
/* If no packet received, exit processing routine */
if (!(RNDIS_Host_IsPacketReceived(&Ethernet_RNDIS_Interface_Host)))
return;
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
/* Read the Incoming packet straight into the UIP packet buffer */
RNDIS_Host_ReadPacket(&Ethernet_RNDIS_Interface_Host, uip_buf, &uip_len);
}
/* If the packet contains an Ethernet frame, process it */
// cppcheck-suppress redundantOperationIn
if (uip_len > 0)
{
switch (((struct uip_eth_hdr*)uip_buf)->type)
{
case HTONS(UIP_ETHTYPE_IP):
/* Filter packet by MAC destination */
uip_arp_ipin();
/* Process Incoming packet */
uip_input();
/* If a response was generated, send it */
if (uip_len > 0)
{
/* Add destination MAC to outgoing packet */
uip_arp_out();
uip_split_output();
}
break;
case HTONS(UIP_ETHTYPE_ARP):
/* Process ARP packet */
uip_arp_arpin();
/* If a response was generated, send it */
if (uip_len > 0)
uip_split_output();
break;
}
}
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
void network_device_send()
{
uip_split_output();
//tcpip_output();
}
/*---------------------------------------------------------------------------*/
static void
packet_input(void)
{
#if FORWARDER
rpl_instance_t *instance;
uint8_t octet;
uint8_t ip6id;
int rssi_temp;
uint8_t send_rssi;
rimeaddr_t packet_from_addr;
packet_from_addr = *packetbuf_addr(PACKETBUF_ADDR_SENDER);
instance = &instance_table[0];
octet = packet_from_addr.u8[7];
ip6id = (octet & 0b00111111) << 2;
tcp_rssi = packetbuf_attr(PACKETBUF_ATTR_RSSI);
if(is_mobile_node(octet) == 1) {
packet_input_count++;
rssi_temp = tcp_rssi - 45;
if(tcp_rssi > 200) {
rssi_temp = tcp_rssi - 255 - 46;
}
rssi_sum += rssi_temp;
if(packet_input_count == WINDOW_SIZE) {
rssi_sum = rssi_sum / WINDOW_SIZE;
PRINTF("RSSI = %d\n", rssi_sum);
PRINTF("packet input count = %d\n", packet_input_count);
if(rssi_sum <= -90) {
send_rssi = rssi_sum + 255 + 46;
dis_output(NULL, 1, 0, send_rssi, ip6id);
}
rssi_sum = 0;
packet_input_count = 0;
}
}
#endif
#if UIP_CONF_IP_FORWARD
if(uip_len > 0) {
tcpip_is_forwarding = 1;
if(uip_fw_forward() == UIP_FW_LOCAL) {
tcpip_is_forwarding = 0;
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output();
#else /* UIP_CONF_TCP_SPLIT */
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else
PRINTF("tcpip packet_input forward output len %d\n", uip_len);
tcpip_output();
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
tcpip_is_forwarding = 0;
}
#else /* UIP_CONF_IP_FORWARD */
if(uip_len > 0) {
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output();
#else /* UIP_CONF_TCP_SPLIT */
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else
PRINTF("tcpip packet_input output len %d\n", uip_len);
tcpip_output();
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
#endif /* UIP_CONF_IP_FORWARD */
}
void netMainThread(void* arg)
{
uint8_t i;
#if !NETSTACK_CONF_WITH_IPV6
POSTIMER_t arpTimer;
#endif
POSTIMER_t periodicTimer;
int sendRequested;
bool packetSeen;
#if !NETSTACK_CONF_WITH_IPV6
arpTimer = posTimerCreate();
P_ASSERT("netMainThread1", arpTimer != NULL);
posTimerSet(arpTimer, uipGiant, MS(10000), MS(10000));
posTimerStart(arpTimer);
#endif
periodicTimer = posTimerCreate();
P_ASSERT("netMainThread2", periodicTimer != NULL);
posTimerSet(periodicTimer, uipGiant, MS(500), MS(500));
posTimerStart(periodicTimer);
posMutexLock(uipMutex);
packetSeen = false;
while(1) {
posMutexUnlock(uipMutex);
// Using semaphore here is not fully optimal.
// As it is a counting one, it can get bumped
// to larger value than 1 by upper or interrupt
// layer. However, not much harm is done,
// this loop just spins extra times without
// doing nothing useful.
// A Pico]OS Flag object would be perfect,
// but it doesn't work with posTimer* functions.
if (!packetSeen || pollTicks == INFINITE)
posSemaWait(uipGiant, pollTicks);
posMutexLock(uipMutex);
sendRequested = dataToSend;
dataToSend = 0;
packetSeen = false;
if (sendRequested) {
for(i = 0; i < UIP_CONNS; i++) {
uip_len = 0;
uip_poll_conn(&uip_conns[i]);
if(uip_len > 0) {
#if NETCFG_UIP_SPLIT == 1
uip_split_output();
#else
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else
tcpip_output();
#endif
#endif
}
}
#if UIP_UDP
for(i = 0; i < UIP_UDP_CONNS; i++) {
uip_len = 0;
uip_udp_periodic(i);
if(uip_len > 0) {
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else
tcpip_output();
#endif
}
}
#endif /* UIP_UDP */
}
packetSeen = netInterfacePoll();
if (posTimerFired(periodicTimer)) {
for(i = 0; i < UIP_CONNS; i++) {
uip_periodic(i);
if(uip_len > 0) {
#if NETCFG_UIP_SPLIT == 1
uip_split_output();
#else
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else
tcpip_output();
#endif
#endif
}
}
#if UIP_UDP
for(i = 0; i < UIP_UDP_CONNS; i++) {
uip_udp_periodic(i);
if(uip_len > 0) {
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else
tcpip_output();
#endif
}
}
#endif /* UIP_UDP */
}
#if NETSTACK_CONF_WITH_IPV6 == 0
if (posTimerFired(arpTimer)) {
uip_arp_timer();
}
#endif
// Run contiki-style timers.
// Instead of posting events to process like
// contiki does, it just calls common callback function
// to do the work.
etimer_request_poll();
}
}
/* -----------------------------------------------------------------------------
* \brief Deliver an incoming packet to the TCP/IP stack
*
* This function is called by theServer to
* deliver an incoming packet to the TCP/IP stack. The
* incoming packet must be present in the uip_buf buffer,
* and the length of the packet must be in the global
* uip_len variable.
* -------------------------------------------------------------------------- */
void xtcpip_input(chanend mac_tx)
{
/*_______________*/
#if UIP_CONF_IPV4 /* ORIGINAL_XMOS */
if (BUF->type == htons(UIP_ETHTYPE_IP)) {
uip_arp_ipin();
uip_input();
if (uip_len > 0) {
if (uip_udpconnection()
&& (TCPBUF->proto != UIP_PROTO_ICMP)
&& (TCPBUF->proto != UIP_PROTO_IGMP))
uip_arp_out( uip_udp_conn);
else
uip_arp_out( NULL);
xtcp_tx_buffer(mac_tx);
}
} else if (BUF->type == htons(UIP_ETHTYPE_ARP)) {
uip_arp_arpin();
if (uip_len > 0) {
xtcp_tx_buffer(mac_tx);
}
for (int i = 0; i < UIP_UDP_CONNS; i++) {
uip_udp_arp_event(i);
if (uip_len > 0) {
uip_arp_out(&uip_udp_conns[i]);
xtcp_tx_buffer(mac_tx);
}
}
}
#endif /* UIP_CONF_IPV4 ORIGINAL_XMOS */
/*_______________*/
/* contiki tcpip.c */
#if UIP_CONF_IP_FORWARD
if(uip_len > 0) {
tcpip_is_forwarding = 1;
if(uip_fw_forward() == UIP_FW_LOCAL) {
tcpip_is_forwarding = 0;
check_for_tcp_syn();
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output(mac_tx);
#else /* UIP_CONF_TCP_SPLIT */
#if UIP_CONF_IPV6
xtcpip_ipv6_output(mac_tx);
#else
PRINTF("tcpip packet_input forward output len %d\n", uip_len);
xtcpip_output(mac_tx);
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
tcpip_is_forwarding = 0;
}
#else /* UIP_CONF_IP_FORWARD */
if(uip_len > 0) {
uip_input();
if(uip_len > 0) {
#if UIP_CONF_TCP_SPLIT
uip_split_output(mac_tx);
#else /* UIP_CONF_TCP_SPLIT */
#if UIP_CONF_IPV6
xtcpip_ipv6_output(mac_tx);
#else
PRINTF("tcpip packet_input output len %d\n", uip_len);
tcpip_output();
#endif
#endif /* UIP_CONF_TCP_SPLIT */
}
}
#endif /* UIP_CONF_IP_FORWARD */
}
void xtcp_tx_buffer(chanend mac_tx) {
uip_split_output(mac_tx);
uip_len = 0;
}
