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gnrc_ipv6: drop packets with unspecified destination

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It just doesn't makes sense to handle them any further
This commit is contained in:
Martine Lenders 2018-11-17 01:55:00 +01:00
parent 0aa96a4579
commit 0bdbb68959
1 changed files with 6 additions and 0 deletions
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6
sys/net/gnrc/network_layer/ipv6/gnrc_ipv6.c
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@ -665,6 +665,12 @@ static void _send(gnrc_pktsnip_t *pkt, bool prep_hdr)
gnrc_pktbuf_release_error(pkt, EINVAL); gnrc_pktbuf_release_error(pkt, EINVAL);
return; return;
} }
if (ipv6_addr_is_unspecified(&((ipv6_hdr_t *)pkt->data)->dst)) {
DEBUG("ipv6: destination address is unspecified address (::), "
"dropping packet \n");
gnrc_pktbuf_release_error(pkt, EINVAL);
return;
}
tmp_pkt = gnrc_pktbuf_start_write(pkt); tmp_pkt = gnrc_pktbuf_start_write(pkt);
if (tmp_pkt == NULL) { if (tmp_pkt == NULL) {
DEBUG("ipv6: unable to get write access to IPv6 header, dropping packet\n"); DEBUG("ipv6: unable to get write access to IPv6 header, dropping packet\n");