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ng_ipv6: fix behavior for multicast over multiple interfaces

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This commit is contained in:
Martine Lenders 2015-06-23 16:24:50 +02:00
parent b2efe73f87
commit ba75602f14
1 changed files with 6 additions and 3 deletions
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9
sys/net/network_layer/ng_ipv6/ng_ipv6.c
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@ -308,7 +308,8 @@ static int _fill_ipv6_hdr(kernel_pid_t iface, ng_pktsnip_t *ipv6,
/* We deal with multiple interfaces here (multicast) => possible
* different source addresses => duplication of payload needed */
while (ptr != payload) {
while (ptr != payload->next) {
ng_pktsnip_t *old = ptr->next;
/* duplicate everything including payload */
ptr->next = ng_pktbuf_start_write(ptr->next);
@ -317,7 +318,7 @@ static int _fill_ipv6_hdr(kernel_pid_t iface, ng_pktsnip_t *ipv6,
return -ENOBUFS;
}
ptr = ptr->next;
ptr = old;
}
}
#endif /* NG_NETIF_NUMOF */
@ -348,6 +349,7 @@ static void _send_multicast(kernel_pid_t iface, ng_pktsnip_t *pkt,
{
ng_pktsnip_t *netif;
kernel_pid_t ifs[NG_NETIF_NUMOF];
size_t ifnum = 0;
if (iface == KERNEL_PID_UNDEF) {
/* get list of interfaces */
@ -400,7 +402,7 @@ static void _send_multicast(kernel_pid_t iface, ng_pktsnip_t *pkt,
LL_PREPEND(pkt, netif);
_send_multicast_over_iface(iface, pkt, netif);
_send_multicast_over_iface(ifs[i], pkt, netif);
}
}
else {
@ -418,6 +420,7 @@ static void _send_multicast(kernel_pid_t iface, ng_pktsnip_t *pkt,
_send_multicast_over_iface(iface, pkt, netif);
}
#else /* NG_NETIF_NUMOF */
(void)ifnum; /* not used in this build branch */
if (iface == KERNEL_PID_UNDEF) {
iface = ifs[0];