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Improve MIP resiliency

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Sergio R. Caprile committed 2022-12-08 17:17:05 -03:00
1 parent 615d324b11
commit d364d50c05
2 files changed
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mip/mip.c
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@@ -297,6 +297,7 @@ static struct ip *tx_ip(struct mip_if *ifp, uint8_t proto, uint32_t ip_src,
if (!mac && ((ip_dst & ifp->mask) == (ifp->ip & ifp->mask)))
arp_ask(ifp, ip_dst); // Same net, lookup
if (!mac) mac = arp_cache_find(ifp, ifp->gw); // Use gateway MAC
if (!mac) arp_ask(ifp, ifp->gw); // Not found? lookup
if (mac) memcpy(eth->dst, mac, sizeof(eth->dst)); // Found? Use it
if (!mac) memset(eth->dst, 255, sizeof(eth->dst)); // No? Use broadcast
memcpy(eth->src, ifp->mac, sizeof(eth->src)); // TODO(cpq): ARP lookup
mongoose.c
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@@ -6824,6 +6824,7 @@ static struct ip *tx_ip(struct mip_if *ifp, uint8_t proto, uint32_t ip_src,
if (!mac && ((ip_dst & ifp->mask) == (ifp->ip & ifp->mask)))
arp_ask(ifp, ip_dst); // Same net, lookup
if (!mac) mac = arp_cache_find(ifp, ifp->gw); // Use gateway MAC
if (!mac) arp_ask(ifp, ifp->gw); // Not found? lookup
if (mac) memcpy(eth->dst, mac, sizeof(eth->dst)); // Found? Use it
if (!mac) memset(eth->dst, 255, sizeof(eth->dst)); // No? Use broadcast
memcpy(eth->src, ifp->mac, sizeof(eth->src)); // TODO(cpq): ARP lookup