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Merge branch 'bugfix/tw23835_add_source_ip_route_for_unicast_v3.1' into 'release/v3.1'

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lwip: add source ip based route for unicast packet (backport v3.1)

See merge request idf/esp-idf!2773
This commit is contained in:
Jiang Jiang Jian
2018-07-16 17:01:31 +08:00
parent 7b0a926574 2a581e3fab
commit 3716e3e8c4
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? */