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netif: initialize netif->output with a dummy function for IPv6 only netifs

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goldsimon
2018-03-13 20:29:37 +01:00
parent 0074022bb5
commit 08bcfa2b29
3 changed files with 18 additions and 23 deletions
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18
src/core/netif.c
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@@ -125,6 +125,9 @@ static void netif_issue_reports(struct netif *netif, u8_t report_type);
#if LWIP_IPV6
static err_t netif_null_output_ip6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipaddr);
#endif /* LWIP_IPV6 */
#if LWIP_IPV4
static err_t netif_null_output_ip4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr);
#endif /* LWIP_IPV4 */
#if LWIP_HAVE_LOOPIF
#if LWIP_IPV4
@@ -300,6 +303,7 @@ netif_add(struct netif *netif,
ip_addr_set_zero_ip4(&netif->ip_addr);
ip_addr_set_zero_ip4(&netif->netmask);
ip_addr_set_zero_ip4(&netif->gw);
netif->output = netif_null_output_ip4;
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) {
@@ -1578,6 +1582,20 @@ netif_null_output_ip6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipa
}
#endif /* LWIP_IPV6 */
#if LWIP_IPV4
/** Dummy IPv4 output function for netifs not supporting IPv4
*/
static err_t
netif_null_output_ip4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr)
{
LWIP_UNUSED_ARG(netif);
LWIP_UNUSED_ARG(p);
LWIP_UNUSED_ARG(ipaddr);
return ERR_IF;
}
#endif /* LWIP_IPV4 */
/**
* @ingroup netif
* Return the interface index for the netif with name