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Merge pull request #214 from lebrush/tcp-uip-size

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Limit partially size of uip/tcpip stack when not using TCP at all
This commit is contained in:
Adam Dunkels 2013-05-23 09:48:17 -07:00
commit 0a135eeba1
2 changed files with 9 additions and 1 deletions
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2
core/net/tcpip.c
View File

@ -166,6 +166,7 @@ start_periodic_tcp_timer(void)
static void static void
check_for_tcp_syn(void) check_for_tcp_syn(void)
{ {
#if UIP_TCP || UIP_CONF_IP_FORWARD
/* This is a hack that is needed to start the periodic TCP timer if /* 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 an incoming packet contains a SYN: since uIP does not inform the
application if a SYN arrives, we have no other way of starting application if a SYN arrives, we have no other way of starting
@ -176,6 +177,7 @@ check_for_tcp_syn(void)
(UIP_TCP_BUF->flags & TCP_SYN) == TCP_SYN) { (UIP_TCP_BUF->flags & TCP_SYN) == TCP_SYN) {
start_periodic_tcp_timer(); start_periodic_tcp_timer();
} }
#endif /* UIP_TCP || UIP_CONF_IP_FORWARD */
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
static void static void

8
core/net/uip.c
View File

@ -690,7 +690,7 @@ uip_process(uint8_t flag)
uip_flags = UIP_POLL; uip_flags = UIP_POLL;
UIP_APPCALL(); UIP_APPCALL();
goto appsend; goto appsend;
#if UIP_ACTIVE_OPEN #if UIP_ACTIVE_OPEN && UIP_TCP
} else if((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_SYN_SENT) { } else if((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_SYN_SENT) {
/* In the SYN_SENT state, we retransmit out SYN. */ /* In the SYN_SENT state, we retransmit out SYN. */
BUF->flags = 0; BUF->flags = 0;
@ -719,6 +719,7 @@ uip_process(uint8_t flag)
uip_len = 0; uip_len = 0;
uip_slen = 0; uip_slen = 0;
#if UIP_TCP
/* Check if the connection is in a state in which we simply wait /* Check if the connection is in a state in which we simply wait
for the connection to time out. If so, we increase the for the connection to time out. If so, we increase the
connection's timer and remove the connection if it times connection's timer and remove the connection if it times
@ -804,6 +805,7 @@ uip_process(uint8_t flag)
goto appsend; goto appsend;
} }
} }
#endif
goto drop; goto drop;
} }
#if UIP_UDP #if UIP_UDP
@ -951,11 +953,13 @@ uip_process(uint8_t flag)
} }
#endif /* UIP_CONF_IPV6 */ #endif /* UIP_CONF_IPV6 */
#if UIP_TCP
if(BUF->proto == UIP_PROTO_TCP) { /* Check for TCP packet. If so, if(BUF->proto == UIP_PROTO_TCP) { /* Check for TCP packet. If so,
proceed with TCP input proceed with TCP input
processing. */ processing. */
goto tcp_input; goto tcp_input;
} }
#endif
#if UIP_UDP #if UIP_UDP
if(BUF->proto == UIP_PROTO_UDP) { if(BUF->proto == UIP_PROTO_UDP) {
@ -1213,6 +1217,7 @@ uip_process(uint8_t flag)
#endif /* UIP_UDP */ #endif /* UIP_UDP */
/* TCP input processing. */ /* TCP input processing. */
#if UIP_TCP
tcp_input: tcp_input:
UIP_STAT(++uip_stat.tcp.recv); UIP_STAT(++uip_stat.tcp.recv);
@ -1901,6 +1906,7 @@ uip_process(uint8_t flag)
/* Calculate TCP checksum. */ /* Calculate TCP checksum. */
BUF->tcpchksum = 0; BUF->tcpchksum = 0;
BUF->tcpchksum = ~(uip_tcpchksum()); BUF->tcpchksum = ~(uip_tcpchksum());
#endif
ip_send_nolen: ip_send_nolen:
#if UIP_CONF_IPV6 #if UIP_CONF_IPV6