vcl: fix sendto for dgrams

We need to set rmt address before sending connect, otherwise VPP
would connect to 0.0.0.0:0 and return invalid remote ip.

Type: fix

Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Change-Id: I85ae6931c2ba9f2f77c9ab19a2f801f50745449c

diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 940a8b9..62aeff6 100644 (file)
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -4060,6 +4060,10 @@ vppcom_session_sendto (uint32_t session_handle, void *buffer,
       if (!vcl_session_is_cl (s))
        return VPPCOM_EINVAL;
 
+      s->transport.is_ip4 = ep->is_ip4;
+      s->transport.rmt_port = ep->port;
+      vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
+
       /* Session not connected/bound in vpp. Create it by 'connecting' it */
       if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
        {
@@ -4075,10 +4079,6 @@ vppcom_session_sendto (uint32_t session_handle, void *buffer,
            return rv;
          s = vcl_session_get (wrk, session_index);
        }
-
-      s->transport.is_ip4 = ep->is_ip4;
-      s->transport.rmt_port = ep->port;
-      vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
     }
 
   if (flags)