/*---------------------------------------------------------------------------*/
static void
check_for_tcp_syn(void)
{
/* This is a hack that is needed to start the periodic TCP timer if
an incoming packet contains a SYN: since uIP does not inform the
application if a SYN arrives, we have no other way of starting
this timer. This function is called for every incoming IP packet
to check for such SYNs. */
#define TCP_SYN 0x02
if(UIP_IP_BUF->proto == UIP_PROTO_TCP &&
(UIP_TCP_BUF->flags & TCP_SYN) == TCP_SYN) {
start_periodic_tcp_timer();
}
}
/*---------------------------------------------------------------------------*/
void
tcpip_uipcall(void)
{
static uip_udp_appstate_t *ts;
#if UIP_UDP
if(uip_conn != NULL) {
ts = &uip_conn->appstate;
} else {
ts = &uip_udp_conn->appstate;
}
#else /* UIP_UDP */
ts = &uip_conn->appstate;
#endif /* UIP_UDP */
#if UIP_TCP
{
static unsigned char i;
register struct listenport *l;
/* If this is a connection request for a listening port, we must
mark the connection with the right process ID. */
if(uip_connected()) {
l = &s.listenports[0];
for(i = 0; i < UIP_LISTENPORTS; ++i) {
if(l->port == uip_conn->lport &&
l->p != PROCESS_NONE) {
ts->p = l->p;
ts->state = NULL;
break;
}
++l;
}
/* Start the periodic polling, if it isn't already active. */
start_periodic_tcp_timer();
}
}
#endif /* UIP_TCP */
if(ts->p != NULL) {
#if SHORTCUTS_CONF_NETSTACK
/* Directly invoke the relevant thread to reduce stack usage by 15 bytes */
ts->p->thread(&ts->p->pt, tcpip_event, ts->state);
#else
process_post_synch(ts->p, tcpip_event, ts->state);
#endif
}
}
/*---------------------------------------------------------------------------*/
void
tcpip_uipcall(void)
{
register uip_udp_appstate_t *ts;
#if UIP_UDP
if(uip_conn != NULL) {
ts = &uip_conn->appstate;
} else {
ts = &uip_udp_conn->appstate;
}
#else /* UIP_UDP */
ts = &uip_conn->appstate;
#endif /* UIP_UDP */
#if UIP_TCP
{
static unsigned char i;
register struct listenport *l;
/* If this is a connection request for a listening port, we must
mark the connection with the right process ID. */
if(uip_connected()) {
l = &s.listenports[0];
for(i = 0; i < UIP_LISTENPORTS; ++i) {
if(l->port == uip_conn->lport &&
l->conn_id != 0) {
ts->conn_id = l->conn_id;
ts->state = NULL;
break;
}
++l;
}
/* Start the periodic polling, if it isn't already active. */
start_periodic_tcp_timer();
}
}
#endif /* UIP_TCP */
// if(ts->p != NULL) {
// process_post_synch(ts->p, tcpip_event, ts->state);
// }
if (ts->conn_id != 0)
evproc_putEvent(E_EVPROC_EXEC,EVENT_TYPE_TCPIP,ts->state);
// evproc_pushEvent(EVENT_TYPE_TCPIP,ts->state);
}
/*---------------------------------------------------------------------------*/
void
tcpip_uipcall(void)
{
uip_udp_appstate_t *ts;
#if UIP_UDP
if(uip_conn != NULL) {
ts = &uip_conn->appstate;
} else {
ts = &uip_udp_conn->appstate;
}
#else /* UIP_UDP */
ts = &uip_conn->appstate;
#endif /* UIP_UDP */
#if UIP_TCP
{
static unsigned char i;
struct listenport *l;
/* If this is a connection request for a listening port, we must
mark the connection with the right process ID. */
if(uip_connected()) {
l = &s.listenports[0];
for(i = 0; i < UIP_LISTENPORTS; ++i) {
if(l->port == uip_conn->lport && l->p != PROCESS_NONE) {
#if NO_XMOS_PROJECT
ts->p = l->p;
ts->state = NULL;
#else
printf("### %s: Here the process should be called.\n", __func__);
#endif
break;
}
++l;
}
/* Start the periodic polling, if it isn't already active. */
start_periodic_tcp_timer();
}
}
#endif /* UIP_TCP */
if(ts->p != NULL) {
process_post_synch(ts->p, tcpip_event, ts->state);
}
}
/*---------------------------------------------------------------------------*/
void
tcpip_uipcall(struct net_buf *buf)
{
uip_udp_appstate_t *ts;
#if UIP_UDP
if(uip_conn(buf) != NULL) {
ts = &uip_conn(buf)->appstate;
} else {
ts = &uip_udp_conn(buf)->appstate;
}
#else /* UIP_UDP */
ts = &uip_conn(buf)->appstate;
#endif /* UIP_UDP */
#if UIP_TCP
{
static unsigned char i;
struct listenport *l;
/* If this is a connection request for a listening port, we must
mark the connection with the right process ID. */
if(uip_connected()) {
l = &s.listenports[0];
for(i = 0; i < UIP_LISTENPORTS; ++i) {
if(l->port == uip_conn->lport &&
l->p != PROCESS_NONE) {
ts->p = l->p;
ts->state = NULL;
break;
}
++l;
}
/* Start the periodic polling, if it isn't already active. */
start_periodic_tcp_timer();
}
}
#endif /* UIP_TCP */
if(ts->p != NULL) {
process_post_synch(ts->p, tcpip_event, ts->state, buf);
}
}
/*---------------------------------------------------------------------------*/
static void
eventhandler(process_event_t ev, process_data_t data)
{
#if UIP_TCP
static unsigned char i;
register struct listenport *l;
#endif /*UIP_TCP*/
struct process *p;
switch(ev) {
case PROCESS_EVENT_EXITED:
/* This is the event we get if a process has exited. We go through
the TCP/IP tables to see if this process had any open
connections or listening TCP ports. If so, we'll close those
connections. */
p = (struct process *)data;
#if UIP_TCP
l = s.listenports;
for(i = 0; i < UIP_LISTENPORTS; ++i) {
if(l->p == p) {
uip_unlisten(l->port);
l->port = 0;
l->p = PROCESS_NONE;
}
++l;
}
{
struct uip_conn *cptr;
for(cptr = &uip_conns[0]; cptr < &uip_conns[UIP_CONNS]; ++cptr) {
if(cptr->appstate.p == p) {
cptr->appstate.p = PROCESS_NONE;
cptr->tcpstateflags = UIP_CLOSED;
}
}
}
#endif /* UIP_TCP */
#if UIP_UDP
{
struct uip_udp_conn *cptr;
for(cptr = &uip_udp_conns[0];
cptr < &uip_udp_conns[UIP_UDP_CONNS]; ++cptr) {
if(cptr->appstate.p == p) {
cptr->lport = 0;
}
}
}
#endif /* UIP_UDP */
break;
case PROCESS_EVENT_TIMER:
/* We get this event if one of our timers have expired. */
{
/* Check the clock so see if we should call the periodic uIP
processing. */
if(data == &periodic &&
etimer_expired(&periodic)) {
#if UIP_TCP
for(i = 0; i < UIP_CONNS; ++i) {
if(uip_conn_active(i)) {
/* Only restart the timer if there are active
connections. */
etimer_restart(&periodic);
uip_periodic(i);
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else
if(uip_len > 0) {
PRINTF("tcpip_output from periodic len %d\n", uip_len);
tcpip_output();
PRINTF("tcpip_output after periodic len %d\n", uip_len);
}
#endif /* UIP_CONF_IPV6 */
}
}
#endif /* UIP_TCP */
#if UIP_CONF_IP_FORWARD
uip_fw_periodic();
#endif /* UIP_CONF_IP_FORWARD */
}
#if UIP_CONF_IPV6
#if UIP_CONF_IPV6_REASSEMBLY
/*
* check the timer for reassembly
*/
if(data == &uip_reass_timer &&
etimer_expired(&uip_reass_timer)) {
uip_reass_over();
tcpip_ipv6_output();
}
#endif /* UIP_CONF_IPV6_REASSEMBLY */
/*
* check the different timers for neighbor discovery and
* stateless autoconfiguration
*/
/*if(data == &uip_ds6_timer_periodic &&
etimer_expired(&uip_ds6_timer_periodic)) {
uip_ds6_periodic();
tcpip_ipv6_output();
}*/
#if !UIP_CONF_ROUTER
if(data == &uip_ds6_timer_rs &&
etimer_expired(&uip_ds6_timer_rs)) {
uip_ds6_send_rs();
tcpip_ipv6_output();
}
#endif /* !UIP_CONF_ROUTER */
if(data == &uip_ds6_timer_periodic &&
etimer_expired(&uip_ds6_timer_periodic)) {
uip_ds6_periodic();
tcpip_ipv6_output();
}
#endif /* UIP_CONF_IPV6 */
}
break;
#if UIP_TCP
case TCP_POLL:
if(data != NULL) {
uip_poll_conn(data);
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else /* UIP_CONF_IPV6 */
if(uip_len > 0) {
PRINTF("tcpip_output from tcp poll len %d\n", uip_len);
tcpip_output();
}
#endif /* UIP_CONF_IPV6 */
/* Start the periodic polling, if it isn't already active. */
start_periodic_tcp_timer();
}
break;
#endif /* UIP_TCP */
#if UIP_UDP
case UDP_POLL:
if(data != NULL) {
uip_udp_periodic_conn(data);
#if UIP_CONF_IPV6
tcpip_ipv6_output();
#else
if(uip_len > 0) {
tcpip_output();
}
#endif /* UIP_UDP */
}
break;
#endif /* UIP_UDP */
case PACKET_INPUT:
packet_input();
break;
};
}
/*---------------------------------------------------------------------------*/
static void
eventhandler(c_event_t ev, p_data_t data)
{
#if UIP_TCP
static unsigned char i;
// register struct listenport *l;
#endif /*UIP_TCP*/
switch(ev) {
case EVENT_TYPE_TIMER_EXP:
/* We get this event if one of our timers have expired. */
{
/* Check the clock so see if we should call the periodic uIP
processing. */
if(data == &periodic &&
etimer_expired(&periodic)) {
#if UIP_TCP
for(i = 0; i < UIP_CONNS; ++i) {
if(uip_conn_active(i)) {
/* Only restart the timer if there are active
connections. */
etimer_restart(&periodic);
uip_periodic(i);
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else
if(uip_len > 0) {
PRINTF("tcpip_output from periodic len %d\n\r", uip_len);
tcpip_output();
PRINTF("tcpip_output after periodic len %d\n\r", uip_len);
}
#endif /* NETSTACK_CONF_WITH_IPV6 */
}
}
#endif /* UIP_TCP */
#if UIP_CONF_IP_FORWARD
uip_fw_periodic();
#endif /* UIP_CONF_IP_FORWARD */
}
#if NETSTACK_CONF_WITH_IPV6
#if UIP_CONF_IPV6_REASSEMBLY
/*
* check the timer for reassembly
*/
if(data == &uip_reass_timer &&
etimer_expired(&uip_reass_timer)) {
uip_reass_over();
tcpip_ipv6_output();
}
#endif /* UIP_CONF_IPV6_REASSEMBLY */
/*
* check the different timers for neighbor discovery and
* stateless autoconfiguration
*/
/*if(data == &uip_ds6_timer_periodic &&
etimer_expired(&uip_ds6_timer_periodic)) {
uip_ds6_periodic();
tcpip_ipv6_output();
}*/
#if !UIP_CONF_ROUTER
if(data == &uip_ds6_timer_rs &&
etimer_expired(&uip_ds6_timer_rs)) {
uip_ds6_send_rs();
tcpip_ipv6_output();
}
#endif /* !UIP_CONF_ROUTER */
if(data == &uip_ds6_timer_periodic &&
etimer_expired(&uip_ds6_timer_periodic)) {
uip_ds6_periodic();
tcpip_ipv6_output();
}
#endif /* NETSTACK_CONF_WITH_IPV6 */
}
break;
#if UIP_TCP
case EVENT_TYPE_TCP_POLL:
if(data != NULL) {
uip_poll_conn(data);
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else /* NETSTACK_CONF_WITH_IPV6 */
if(uip_len > 0) {
PRINTF("tcpip_output from tcp poll len %d\n\r", uip_len);
tcpip_output();
}
#endif /* NETSTACK_CONF_WITH_IPV6 */
/* Start the periodic polling, if it isn't already active. */
start_periodic_tcp_timer();
}
break;
#endif /* UIP_TCP */
#if UIP_UDP
case EVENT_TYPE_UDP_POLL:
if(data != NULL) {
uip_udp_periodic_conn(data);
#if NETSTACK_CONF_WITH_IPV6
tcpip_ipv6_output();
#else
if(uip_len > 0) {
tcpip_output();
}
#endif /* UIP_UDP */
}
break;
#endif /* UIP_UDP */
case EVENT_TYPE_PCK_INPUT:
packet_input();
break;
};
}