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Merge pull request #3932 from cgundogan/pr/rpl/linklocal

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rpl: fix src addr of outgoing control messages
This commit is contained in:
Martine Lenders 2015-09-22 17:17:41 +02:00
commit 4419a0a441
1 changed files with 4 additions and 12 deletions
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16
sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c
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@ -47,6 +47,7 @@ static char addr_str[IPV6_ADDR_MAX_STR_LEN];
void gnrc_rpl_send(gnrc_pktsnip_t *pkt, ipv6_addr_t *src, ipv6_addr_t *dst, ipv6_addr_t *dodag_id)
{
(void) dodag_id;
gnrc_pktsnip_t *hdr;
ipv6_addr_t all_RPL_nodes = GNRC_RPL_ALL_NODES_ADDR, ll_addr;
kernel_pid_t iface = gnrc_ipv6_netif_find_by_addr(NULL, &all_RPL_nodes);
@ -57,23 +58,14 @@ void gnrc_rpl_send(gnrc_pktsnip_t *pkt, ipv6_addr_t *src, ipv6_addr_t *dst, ipv6
}
if (src == NULL) {
ipv6_addr_t *tmp = NULL;
if (dodag_id != NULL) {
tmp = gnrc_ipv6_netif_match_prefix(iface, dodag_id);
}
else if (dodag_id == NULL) {
tmp = gnrc_ipv6_netif_find_best_src_addr(iface, &all_RPL_nodes);
}
ipv6_addr_set_link_local_prefix(&ll_addr);
src = gnrc_ipv6_netif_match_prefix(iface, &ll_addr);
if (tmp == NULL) {
if (src == NULL) {
DEBUG("RPL: no suitable src address found\n");
gnrc_pktbuf_release(pkt);
return;
}
memcpy(&ll_addr, tmp, sizeof(ll_addr));
ipv6_addr_set_link_local_prefix(&ll_addr);
src = &ll_addr;
}
if (dst == NULL) {