sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

UDP networking: The TTL (time to live) was not being set in the IPv4 or IPv6 header unless the UDP socket was bound.

Browse Source
This commit is contained in:
Gregory Nutt 2017-07-04 12:05:21 -06:00
parent c0c275c8fc
commit 5e617f8410
3 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
net/devif/ipv6_forward.c
View File

@ -106,18 +106,20 @@ static int ipv6_packet_conversion(FAR struct net_driver_s *dev,
{
/* Otherwise, we will have to drop the packet */
nwarn("WARNING: Dropping. Unsupported 6LoWPAN protocol: %d\n",
nwarn("WARNING: Dropping. Unsupported 6LoWPAN protocol: %d\n",
ipv6->proto);
#ifdef CONFIG_NET_STATISTICS
g_netstats.ipv6.drop++;
#endif
return -EPROTONOSUPPORT;
}
dev->d_len = 0;
return OK;
}
nwarn("WARNING: Dropping. Unsupported link layer\n");
return -EPFNOSUPPORT;
}
#else
@ -515,6 +517,7 @@ int ipv6_forward(FAR struct net_driver_s *dev, FAR struct ipv6_hdr_s *ipv6)
ret = ipv6_decr_ttl(ipv6);
if (ret < 1)
{
nwarn("WARNING: Hop limit exceeded... Dropping!\n");
ret = -EMULTIHOP;
goto drop;
}
@ -548,6 +551,7 @@ int ipv6_forward(FAR struct net_driver_s *dev, FAR struct ipv6_hdr_s *ipv6)
ret = ipv6_dev_forward(dev, fwddev, ipv6);
if (ret < 0)
{
nwarn("WARNING: ipv6_dev_forward faield: %d\n", ret);
goto drop;
}
}

1
net/devif/ipv6_input.c
View File

@ -370,6 +370,7 @@ int ipv6_input(FAR struct net_driver_s *dev)
{
/* Not destined for us and not forwardable... drop the packet. */
nwarn("WARNING: Not destined for us; not forwardable... Dropping!\n");
#ifdef CONFIG_NET_STATISTICS
g_netstats.ipv6.drop++;
#endif

2
net/udp/udp_conn.c
View File

@ -457,6 +457,7 @@ FAR struct udp_conn_s *udp_alloc(uint8_t domain)
conn->domain = domain;
#endif
conn->lport = 0;
conn->ttl = IP_TTL;
/* Enqueue the connection into the active list */
@ -760,7 +761,6 @@ int udp_connect(FAR struct udp_conn_s *conn, FAR const struct sockaddr *addr)
#endif /* CONFIG_NET_IPv6 */
}
conn->ttl = IP_TTL;
return OK;
}