diff options
Diffstat (limited to 'nuttx/net/uip/uip-tcpcallback.c')
| -rw-r--r-- | nuttx/net/uip/uip-tcpcallback.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/nuttx/net/uip/uip-tcpcallback.c b/nuttx/net/uip/uip-tcpcallback.c index 524b70084..72fae7736 100644 --- a/nuttx/net/uip/uip-tcpcallback.c +++ b/nuttx/net/uip/uip-tcpcallback.c @@ -75,6 +75,10 @@ uint8 uip_tcpcallback(struct uip_driver_s *dev, struct uip_conn *conn, uint8 flags) { + /* Preserve the UIP_ACKDATA & UIP_NEWDATA in the response. These are + * needed by uIP to handle ACKing and buffer state. + */ + uint8 ret = flags & (UIP_ACKDATA|UIP_NEWDATA); vdbg("flags: %02x\n", flags); @@ -83,7 +87,11 @@ uint8 uip_tcpcallback(struct uip_driver_s *dev, struct uip_conn *conn, uint8 fla if (conn->data_event) { - /* Perform the callback */ + /* Perform the callback. Callback function may return on of: + * UIP_CLOSE - Gracefully close the current connection + * UIP_ABORT - Abort (reset) the current connection on an error that + * prevents UIP_CLOSE from working. + */ ret |= conn->data_event(dev, conn, flags); } |