discard packet when tcp_input error occurs.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@485 bbd45198-f89e-11dd-88c7-29a3b14d5316

discard packet when tcp_input error occurs.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@485 bbd45198-f89e-11dd-88c7-29a3b14d5316
b437fc59 · bernard.xiong · 6740422c · b437fc59
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Showing with 5 addition and 1 deletion

net/lwip/src/netif/ethernetif.c net/lwip/src/netif/ethernetif.c +5 -1

未找到文件。
--- a/net/lwip/src/netif/ethernetif.c
+++ b/net/lwip/src/netif/ethernetif.c
@@ -64,7 +64,11 @@ err_t eth_input(struct pbuf *p, struct netif *inp)
 		case ETHTYPE_IP:
 			etharp_ip_input(inp, p);
 			pbuf_header(p, -((rt_int16_t)sizeof(struct eth_hdr)));
-			tcpip_input(p, inp);
+			if (tcpip_input(p, inp) != ERR_OK)
+			{
+				/* discard packet */
+				pbuf_free(p);
+			}
 			break;
 		case ETHTYPE_ARP: