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Merge pull request #13122 from miri64/gnrc_ipv6_nib/enh/GNRC_IPV6_STATIC_LLADDR

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gnrc_ipv6_nib: allow for configuration of static link-local addresses
This commit is contained in:
Leandro Lanzieri 2020-01-15 10:25:58 +01:00 committed by GitHub
commit 8f237f3308
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1 changed files with 23 additions and 0 deletions
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23
sys/net/gnrc/network_layer/ipv6/nib/nib.c
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@ -97,6 +97,28 @@ void gnrc_ipv6_nib_init(void)
_nib_release();
}
static void _add_static_lladdr(gnrc_netif_t *netif)
{
#ifdef GNRC_IPV6_STATIC_LLADDR
/* parse addr from string and explicitely set a link lokal prefix
* if ifnum > 1 each interface will get its own link local address
* with GNRC_IPV6_STATIC_LLADDR + i
*/
char lladdr_str[] = GNRC_IPV6_STATIC_LLADDR;
ipv6_addr_t lladdr;
if(ipv6_addr_from_str(&lladdr, lladdr_str) != NULL) {
lladdr.u8[15] += netif->pid;
assert(ipv6_addr_is_link_local(&lladdr));
gnrc_netif_ipv6_addr_add_internal(
netif, &lladdr, 64U, GNRC_NETIF_IPV6_ADDRS_FLAGS_STATE_VALID
);
}
#else
(void)netif;
#endif
}
void gnrc_ipv6_nib_init_iface(gnrc_netif_t *netif)
{
assert(netif != NULL);
@ -123,6 +145,7 @@ void gnrc_ipv6_nib_init_iface(gnrc_netif_t *netif)
gnrc_netif_release(netif);
return;
}
_add_static_lladdr(netif);
_auto_configure_addr(netif, &ipv6_addr_link_local_prefix, 64U);
if (!(gnrc_netif_is_rtr_adv(netif)) ||
(gnrc_netif_is_6ln(netif) && !gnrc_netif_is_6lbr(netif))) {