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lwip: add source ip based route for unicast packet

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Add source IP based route for unicast packets forwarding.
This commit is contained in:
Liu Zhi Fu
2018-07-12 16:49:22 +08:00
parent 7b0a926574
commit 2a581e3fab
1 changed files with 1 additions and 1 deletions
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2
components/lwip/core/ipv4/ip4.c
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@ -142,7 +142,7 @@ ip4_route_src_hook(const ip4_addr_t *dest, const ip4_addr_t *src)
struct netif *netif = NULL;
/* destination IP is broadcast IP? */
if ((src != NULL) && (dest->addr == IPADDR_BROADCAST)) {
if ((src != NULL) && (!ip4_addr_isany(src) || (dest->addr == IPADDR_BROADCAST))) {
/* iterate through netifs */
for (netif = netif_list; netif != NULL; netif = netif->next) {
/* is the netif up, does it have a link and a valid address? */