Add lmb_free

[karo-tx-uboot.git] / net / net.c

diff --git a/net/net.c b/net/net.c
index 78128772fe5cda166ea74aa8ac95832d8d155b55..f55c7facf2783676ccd683e90fd45523e899e9f6 100644 (file)
--- a/net/net.c
+++ b/net/net.c
@@ -1407,6 +1407,10 @@ NetReceive(volatile uchar * inpkt, int len)
                if (ip->ip_off & htons(0x1fff)) { /* Can't deal w/ fragments */
                        return;
                }
+               /* can't deal with headers > 20 bytes */
+               if ((ip->ip_hl_v & 0x0f) > 0x05) {
+                       return;
+               }
                if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) {
                        puts ("checksum bad\n");
                        return;