diff options
Diffstat (limited to 'src/vnet/session/transport.c')
| -rw-r--r-- | src/vnet/session/transport.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/vnet/session/transport.c b/src/vnet/session/transport.c index 06954c04ccc..7e40164a9f8 100644 --- a/src/vnet/session/transport.c +++ b/src/vnet/session/transport.c @@ -734,7 +734,18 @@ transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t * rmt_cfg, port = clib_net_to_host_u16 (rmt_cfg->peer.port); *lcl_port = port; - return transport_endpoint_mark_used (proto, lcl_addr, port); + if (!transport_endpoint_mark_used (proto, lcl_addr, port)) + return 0; + + /* IP:port pair already in use, check if 6-tuple available */ + if (session_lookup_connection (rmt->fib_index, lcl_addr, &rmt->ip, port, + rmt->port, proto, rmt->is_ip4)) + return SESSION_E_PORTINUSE; + + /* 6-tuple is available so increment lcl endpoint refcount */ + transport_share_local_endpoint (proto, lcl_addr, port); + + return 0; } return 0; |