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Enable UDP for DHCP in uIP

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logicog
2026-01-18 07:50:38 +01:00
parent 4269745521
commit 34cebe5971
3 changed files with 16 additions and 13 deletions
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uip/uip.c
+11 -9
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@@ -85,6 +85,7 @@
#include "uip.h"
#include "uipopt.h"
#include "uip_arch.h"
#include <stddef.h>
#pragma codeseg BANK1
#pragma constseg BANK1
@@ -168,8 +169,8 @@ __xdata u16_t uip_listenports[UIP_LISTENPORTS];
/* The uip_listenports list all currently
listning ports. */
#if UIP_UDP
struct uip_udp_conn *uip_udp_conn;
struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
__xdata struct uip_udp_conn *uip_udp_conn;
__xdata struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
#endif /* UIP_UDP */
__xdata static u16_t ipid; /* Ths ipid variable is an increasing
@@ -469,7 +470,7 @@ uip_connect(register __xdata uip_ipaddr_t *ripaddr, __xdata u16_t rport) __banke
struct uip_udp_conn *
uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport) __banked
{
register struct uip_udp_conn *conn;
__xdata struct uip_udp_conn *conn;
/* Find an unused local port. */
again:
@@ -721,7 +722,6 @@ uip_process(u8_t flag) __banked
/* Reset the length variables. */
uip_len = 0;
uip_slen = 0;
/* Check if the connection is in a state in which we simply wait
for the connection to time out. If so, we increase the
connection's timer and remove the connection if it times
@@ -919,12 +919,14 @@ uip_process(u8_t flag) __banked
}
#endif /* UIP_BROADCAST */
/* Check if the packet is destined for our IP address. */
/* Check if we have a DHCP packet, otherwise check if the packet is destined for our IP address. */
#if !UIP_CONF_IPV6
if(!uip_ipaddr_cmpx(BUF->destipaddr, uip_hostaddr)) {
UIP_STAT(++uip_stat.ip.drop);
goto drop;
}
if(!(BUF->proto == UIP_PROTO_UDP && UDPBUF->destport == HTONS(DHCPC_CLIENT_PORT))) {
if(!uip_ipaddr_cmpx(BUF->destipaddr, uip_hostaddr)) {
UIP_STAT(++uip_stat.ip.drop);
goto drop;
}
}
#else /* UIP_CONF_IPV6 */
/* For IPv6, packet reception is a little trickier as we need to
make sure that we listen to certain multicast addresses (all