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;