ethaddr[0], ethaddr[1], ethaddr[2],
ethaddr[3], ethaddr[4], ethaddr[5]));
- /* Check 0.0.0.0/8 invalid source-only addresses */
- if ((ip_addr & htonl(~(0xfU << 28))) == 0) {
- return;
- }
-
- if (ip_addr == 0xffffffff || ip_addr == broadcast_addr) {
+ if (ip_addr == 0 || ip_addr == 0xffffffff || ip_addr == broadcast_addr) {
/* Do not register broadcast addresses */
return;
}
DEBUG_CALL("arp_table_search");
DEBUG_ARG("ip = 0x%x", ip_addr);
- /* Check 0.0.0.0/8 invalid source-only addresses */
- assert((ip_addr & htonl(~(0xfU << 28))) != 0);
-
/* If broadcast address */
if (ip_addr == 0xffffffff || ip_addr == broadcast_addr) {
/* return Ethernet broadcast address */
return 1;
}
+ if (iph->ip_dst.s_addr == 0) {
+ /* 0.0.0.0 can not be a destination address, something went wrong,
+ * avoid making it worse */
+ return 1;
+ }
if (!arp_table_search(slirp, iph->ip_dst.s_addr, ethaddr)) {
uint8_t arp_req[ETH_HLEN + sizeof(struct arphdr)];
struct ethhdr *reh = (struct ethhdr *)arp_req;