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net: contiki: If outgoing packet is dropped then print more info

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Change-Id: Ibac9592f9af5bd5ad2b984752bd8e3a0542d00b5
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2016-02-15 11:22:07 +02:00 • committed by Gerrit Code Review
commit e11295ebe4
1 changed files with 8 additions and 0 deletions
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8
net/ip/contiki/ip/tcpip.c
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@ -663,6 +663,8 @@ tcpip_ipv6_output(struct net_buf *buf)
if(nbr == NULL) {
#if UIP_ND6_SEND_NA
if((nbr = uip_ds6_nbr_add(nexthop, NULL, 0, NBR_INCOMPLETE)) == NULL) {
PRINTF("IP packet buf %p len %d discarded because cannot "
"add neighbor\n", buf, uip_len(buf));
uip_len(buf) = 0;
uip_ext_len(buf) = 0;
return 0;
@ -673,6 +675,9 @@ tcpip_ipv6_output(struct net_buf *buf)
memcpy(uip_packetqueue_buf(&nbr->packethandle), UIP_IP_BUF(buf), uip_len(buf));
uip_packetqueue_set_buflen(&nbr->packethandle, uip_len(buf));
}
#else
PRINTF("IP packet buf %p len %d discarded because NS is "
"being sent\n", buf, uip_len(buf));
#endif
/* RFC4861, 7.2.2:
* "If the source address of the packet prompting the solicitation is the
@ -705,6 +710,9 @@ tcpip_ipv6_output(struct net_buf *buf)
memcpy(uip_packetqueue_buf(&nbr->packethandle), UIP_IP_BUF(buf), uip_len(buf));
uip_packetqueue_set_buflen(&nbr->packethandle, uip_len(buf));
}
#else
PRINTF("IP packet buf %p len %d discarded because neighbor info is "
"not yet received\n", buf, uip_len(buf));
#endif /*UIP_CONF_IPV6_QUEUE_PKT*/
uip_len(buf) = 0;
uip_ext_len(buf) = 0;