vcl: new vcl api to get detailed session errors

[vpp.git] / src / vcl / vppcom.c

diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 8476ea4..05b84d4 100644 (file)
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -411,6 +411,7 @@ vcl_session_connected_handler (vcl_worker_t * wrk,
            format_session_error, mp->retval);
       session->session_state = VCL_STATE_DETACHED;
       session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
+      session->vpp_error = mp->retval;
       return session_index;
     }
 
@@ -1398,6 +1399,7 @@ vppcom_session_create (u8 proto, u8 is_nonblocking)
   session->session_state = VCL_STATE_CLOSED;
   session->vpp_handle = ~0;
   session->is_dgram = vcl_proto_is_dgram (proto);
+  session->vpp_error = SESSION_E_NONE;
 
   if (is_nonblocking)
     vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
@@ -4420,6 +4422,10 @@ vppcom_retval_str (int retval)
       st = "VPPCOM_ETIMEDOUT";
       break;
 
+    case VPPCOM_EADDRINUSE:
+      st = "VPPCOM_EADDRINUSE";
+      break;
+
     default:
       st = "UNKNOWN_STATE";
       break;
@@ -4446,6 +4452,32 @@ vppcom_del_cert_key_pair (uint32_t ckpair_index)
     return vcl_bapi_del_cert_key_pair (ckpair_index);
 }
 
+int
+vppcom_session_get_error (uint32_t session_handle)
+{
+  vcl_worker_t *wrk = vcl_worker_get_current ();
+  vcl_session_t *session = 0;
+
+  session = vcl_session_get_w_handle (wrk, session_handle);
+  if (!session)
+    return VPPCOM_EBADFD;
+
+  if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
+    {
+      VWRN ("epoll session %u! will not have connect", session->session_index);
+      return VPPCOM_EBADFD;
+    }
+
+  if (session->vpp_error == SESSION_E_PORTINUSE)
+    return VPPCOM_EADDRINUSE;
+  else if (session->vpp_error == SESSION_E_REFUSED)
+    return VPPCOM_ECONNREFUSED;
+  else if (session->vpp_error != SESSION_E_NONE)
+    return VPPCOM_EFAULT;
+  else
+    return VPPCOM_OK;
+}
+
 /*
  * fd.io coding-style-patch-verification: ON
  *