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Merge pull request #5751 from miri64/gnrc_udp/fix/consider-netif-hdr

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gnrc_udp: consider netif header in send dispatch
This commit is contained in:
Peter Kietzmann 2016-08-30 23:10:13 +02:00 committed by GitHub
commit cd548cad46
1 changed files with 8 additions and 1 deletions
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9
sys/net/gnrc/transport_layer/udp/gnrc_udp.c
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@ -165,6 +165,7 @@ static void _send(gnrc_pktsnip_t *pkt)
{
udp_hdr_t *hdr;
gnrc_pktsnip_t *udp_snip, *tmp;
gnrc_nettype_t target_type = pkt->type;
/* write protect first header */
tmp = gnrc_pktbuf_start_write(pkt);
@ -203,8 +204,14 @@ static void _send(gnrc_pktsnip_t *pkt)
/* fill in size field */
hdr->length = byteorder_htons(gnrc_pkt_len(udp_snip));
/* set to IPv6, if first header is netif header */
if (target_type == GNRC_NETTYPE_NETIF) {
target_type = pkt->next->type;
}
/* and forward packet to the network layer */
if (!gnrc_netapi_dispatch_send(pkt->type, GNRC_NETREG_DEMUX_CTX_ALL, pkt)) {
if (!gnrc_netapi_dispatch_send(target_type, GNRC_NETREG_DEMUX_CTX_ALL,
pkt)) {
DEBUG("udp: cannot send packet: network layer not found\n");
gnrc_pktbuf_release(pkt);
}