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| author | Gregory Nutt <gnutt@nuttx.org> | 2014-11-21 17:44:12 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2014-11-21 17:44:12 -0600 |
| commit | 2cd4aa56287b47f0a5c15d2630ae25c0c6d13c2e (patch) | |
| tree | f72d1dbc8cfc8c36f42fbde49889c90e6ce9aca6 /nuttx/net/udp | |
| parent | 5b6a95d7ee9637c03970a15abcadc06738a48a9e (diff) | |
| download | nuttx-2cd4aa56287b47f0a5c15d2630ae25c0c6d13c2e.tar.gz nuttx-2cd4aa56287b47f0a5c15d2630ae25c0c6d13c2e.tar.bz2 nuttx-2cd4aa56287b47f0a5c15d2630ae25c0c6d13c2e.zip | |
Fix routing of muli-network UDP packets
Diffstat (limited to 'nuttx/net/udp')
| -rw-r--r-- | nuttx/net/udp/udp_conn.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/nuttx/net/udp/udp_conn.c b/nuttx/net/udp/udp_conn.c index e45abc540..42c4cf6c1 100644 --- a/nuttx/net/udp/udp_conn.c +++ b/nuttx/net/udp/udp_conn.c @@ -350,6 +350,10 @@ FAR struct udp_conn_s *udp_active(FAR struct udp_iphdr_s *buf) * number in the received packet. * - The remote port number is checked if the connection is bound * to a remote port. + * - If multiple network interfaces are supported, then the local + * IP address is available and we will insist that the + * destination IP matches the bound address (or the destination + * IP address is a broadcase address). * - Finally, if the connection is bound to a remote IP address, * the source IP address of the packet is checked. Broadcast * addresses are also accepted. @@ -360,6 +364,10 @@ FAR struct udp_conn_s *udp_active(FAR struct udp_iphdr_s *buf) if (conn->lport != 0 && buf->destport == conn->lport && (conn->rport == 0 || buf->srcport == conn->rport) && +#ifdef CONFIG_NETDEV_MULTINIC + (net_ipaddr_hdrcmp(buf->destipaddr, &g_alloneaddr) || + net_ipaddr_hdrcmp(buf->destipaddr, &conn->lipaddr)) && +#endif (net_ipaddr_cmp(conn->ripaddr, g_allzeroaddr) || net_ipaddr_cmp(conn->ripaddr, g_alloneaddr) || net_ipaddr_hdrcmp(buf->srcipaddr, &conn->ripaddr))) |