From 235661668de3a08dc2299af4b5edca518fa4677d Mon Sep 17 00:00:00 2001
From: Martine Lenders <m.lenders@fu-berlin.de>
Date: Mon, 10 Sep 2018 17:07:59 +0200
Subject: [PATCH] gnrc_ipv6_nib: always configure 802.15.4 long address
Our `gnrc_minimal` example configures the link-local address from the
IEEE 802.15.4 short address since it does not include 6Lo-ND.
This causes the application to be incompatible with our other GNRC
application that do include 6Lo-ND, since it [assumes][1] the link-local
address to be based on the EUI-64 for address resolution.
This enforces long addresses (aka EUI-64) for all IEEE 802.15.4 devices
when IPv6 is compiled in so `gnrc_minimal` is compatible again to the
rest.
Fixes #9910
[1]: https://tools.ietf.org/html/rfc6775#section-5.2
---
sys/net/gnrc/network_layer/ipv6/nib/nib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sys/net/gnrc/network_layer/ipv6/nib/nib.c b/sys/net/gnrc/network_layer/ipv6/nib/nib.c
index 36d0e62015..0ae1915821 100644
--- a/sys/net/gnrc/network_layer/ipv6/nib/nib.c
+++ b/sys/net/gnrc/network_layer/ipv6/nib/nib.c
@@ -112,6 +112,7 @@ void gnrc_ipv6_nib_init_iface(gnrc_netif_t *netif)
_init_iface_router(netif);
#if GNRC_IPV6_NIB_CONF_6LN
netif->ipv6.rs_sent = 0;
+#endif /* GNRC_IPV6_NIB_CONF_6LN */
if (netif->device_type == NETDEV_TYPE_IEEE802154) {
/* see https://tools.ietf.org/html/rfc6775#section-5.2 */
uint16_t src_len = IEEE802154_LONG_ADDRESS_LEN;
@@ -123,7 +124,6 @@ void gnrc_ipv6_nib_init_iface(gnrc_netif_t *netif)
* directly everything else would deadlock anyway */
netif->ops->set(netif, &opt);
}
-#endif /* GNRC_IPV6_NIB_CONF_6LN */
netif->ipv6.na_sent = 0;
if (gnrc_netif_ipv6_group_join_internal(netif,
&ipv6_addr_all_nodes_link_local) < 0) {
--
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