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LIBLWIP - ARP fix

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- does not crash KVM anymore
This commit is contained in:
Tomas Hruby 2012-10-13 21:05:25 +00:00 committed by Lionel Sambuc
parent 2d9009b0ab
commit 566af1516a
1 changed files with 5 additions and 0 deletions
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5
lib/liblwip/netif/etharp.c
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@ -1189,6 +1189,11 @@ etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
LWIP_ASSERT("netif != NULL", netif != NULL); LWIP_ASSERT("netif != NULL", netif != NULL);
/* Do not send ARP if the source IP is not set. This may cause various
* problems, for instance, triggers an assert in qemu-kvm */
if (ipsrc_addr->addr == 0)
return ERR_OK;
/* allocate a pbuf for the outgoing ARP request packet */ /* allocate a pbuf for the outgoing ARP request packet */
p = pbuf_alloc(PBUF_RAW, SIZEOF_ETHARP_PACKET, PBUF_RAM); p = pbuf_alloc(PBUF_RAW, SIZEOF_ETHARP_PACKET, PBUF_RAM);
/* could allocate a pbuf for an ARP request? */ /* could allocate a pbuf for an ARP request? */