Re: [vpp-dev] Failed to use vcl_test_client

薛欣颖 Tue, 19 Sep 2017 19:30:40 -0700

Hi ,

There are still problems:
root@ubuntu:/home/vpp_communication/vpp/build-root/install-vpp-native/vpp/bin# 
./vcl_test_client -U 1.1.1.2 22000


CLIENT: Connecting to server...
vl_api_connect_session_reply_t_handler:697: [9478] connect failed: Session 
failed to connect (-115)

Breakpoint 1, send_session_connected_callback (app_index=1, api_context=0, 
s=0x0, is_fail=1 '\001')
    at 
/home/vpp_communication/vpp/build-data/../src/vnet/session/session_api.c:157
157     {
(gdb) bt
#0  send_session_connected_callback (app_index=1, api_context=0, s=0x0, 
is_fail=1 '\001')
    at 
/home/vpp_communication/vpp/build-data/../src/vnet/session/session_api.c:157
#1  0x00007f35c658459c in stream_session_connect_notify (tc=0x7f358585e3f8, 
is_fail=<optimized out>, 
    is_fail@entry=1 '\001') at 
/home/vpp_communication/vpp/build-data/../src/vnet/session/session.c:489
#2  0x00007f35c6456972 in tcp_connection_reset (tc=tc@entry=0x7f358585e3f8)
    at /home/vpp_communication/vpp/build-data/../src/vnet/tcp/tcp.c:258
#3  0x00007f35c6429977 in tcp46_syn_sent_inline (is_ip4=1, 
from_frame=<optimized out>, node=<optimized out>, 
    vm=<optimized out>) at 
/home/vpp_communication/vpp/build-data/../src/vnet/tcp/tcp_input.c:2023
#4  tcp4_syn_sent (vm=<optimized out>, node=<optimized out>, 
from_frame=<optimized out>)
    at /home/vpp_communication/vpp/build-data/../src/vnet/tcp/tcp_input.c:2184
#5  0x00007f35c6962d14 in dispatch_node (last_time_stamp=204974335045786, 
frame=0x7f35858596c0, 
    dispatch_state=VLIB_NODE_STATE_POLLING, type=VLIB_NODE_TYPE_INTERNAL, 
node=0x7f3584da06c0, 


code segment：
int
send_session_connected_callback (u32 app_index, u32 api_context,
 stream_session_t * s, u8 is_fail)
{
  vl_api_connect_session_reply_t *mp;
  unix_shared_memory_queue_t *q;
  application_t *app;
  unix_shared_memory_queue_t *vpp_queue;

  app = application_get (app_index);
  q = vl_api_client_index_to_input_queue (app->api_client_index);

  if (!q)
    return -1;

  mp = vl_msg_api_alloc (sizeof (*mp));
  mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_CONNECT_SESSION_REPLY); 
  mp->context = api_context;
  if (!is_fail)
    {
      vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
      mp->server_rx_fifo = pointer_to_uword (s->server_rx_fifo);
      mp->server_tx_fifo = pointer_to_uword (s->server_tx_fifo);
      mp->handle = stream_session_handle (s);
      mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
      mp->retval = 0;
    }
  else
    {
      mp->retval = clib_host_to_net_u32 (VNET_API_ERROR_SESSION_CONNECT_FAIL);  
    }
  vl_msg_api_send_shmem (q, (u8 *) & mp);
  return 0;
}

ruturn message to VCL， connect failed: Session failed to connect 

I have two question :
1.  there are two function "vl_api_connect_sock_t_handler", one in 
session_api.c,  another in vppcom.c, 
How to work ?

2.  How to VCL and VPP communication ? 

3. Why the message of VPP to VCL  is "send_session_connected_callback" function 
send ?

thanks,
xyxue


 
From: Dave Wallace
Date: 2017-09-19 01:29
To: 薛欣颖; vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Failed to use vcl_test_client
Hi Xyeue,

I believe this patch fixes this issue:  https://gerrit.fd.io/r/#/c/8315/

Can you please pull the latest source code and try again?

Thanks,
-daw-

On 9/18/2017 2:43 AM, 薛欣颖 wrote:

Hi,

When I test vcl ,there is some error :
root@ubuntu:/home/vpp_communication/vpp/build-root/install-vpp-native/vpp/bin# 
./vcl_test_client -U 1.1.1.2 22000

CLIENT: Connecting to server...
msg_handler_internal:429: no handler for msg id 424
..........
...................
...................
ERROR in main(): Bad file descriptor
ERROR: connect failed (errno = 9)!
Segmentation fault

The msg id 424 is VL_API_CONNECT_URI_REPLY .The VL_API_CONNECT_URI_REPLY is 
registed in vat.
Is there anything wrong in my test?

The gdb information is shown below:
(gdb) bt
#0  vl_msg_api_send_shmem (q=q@entry=0x302891c0, elem=elem@entry=0x7faafab32cc8 
"\344o\006\060")
    at 
/home/vpp_communication/vpp/build-data/../src/vlibmemory/memory_shared.c:584
#1  0x00007fab3c053b55 in send_session_connected_callback (app_index=<optimized 
out>, api_context=3472551422, 
    s=0x0, is_fail=<optimized out>) at 
/home/vpp_communication/vpp/build-data/../src/vnet/session/session_api.c:186
#2  0x00007fab3c03cc44 in stream_session_connect_notify (tc=0x7faafa776bd8, 
is_fail=<optimized out>, 
    is_fail@entry=1 '\001') at 
/home/vpp_communication/vpp/build-data/../src/vnet/session/session.c:489
#3  0x00007fab3bf0f642 in tcp_connection_reset (tc=tc@entry=0x7faafa776bd8)
    at /home/vpp_communication/vpp/build-data/../src/vnet/tcp/tcp.c:257
#4  0x00007fab3bee4077 in tcp46_syn_sent_inline (is_ip4=1, 
from_frame=<optimized out>, node=<optimized out>, 
    vm=<optimized out>) at 
/home/vpp_communication/vpp/build-data/../src/vnet/tcp/tcp_input.c:1938
#5  tcp4_syn_sent (vm=<optimized out>, node=<optimized out>, 
from_frame=<optimized out>)
    at /home/vpp_communication/vpp/build-data/../src/vnet/tcp/tcp_input.c:2091
#6  0x00007fab3c4159e4 in dispatch_node (last_time_stamp=1926897640132334, 
frame=0x7faafb34a000, 
    dispatch_state=VLIB_NODE_STATE_POLLING, type=VLIB_NODE_TYPE_INTERNAL, 
node=0x7faafa86a600, 
    vm=0x7fab3c668320 <vlib_global_main>) at 
/home/vpp_communication/vpp/build-data/../src/vlib/main.c:1011
#7  dispatch_pending_node (vm=vm@entry=0x7fab3c668320 <vlib_global_main>, 
    pending_frame_index=pending_frame_index@entry=5, 
last_time_stamp=last_time_stamp@entry=1926897640132334)
    at /home/vpp_communication/vpp/build-data/../src/vlib/main.c:1161
#8  0x00007fab3c4177a5 in vlib_main_or_worker_loop (is_main=1, 
vm=0x7fab3c668320 <vlib_global_main>)
    at /home/vpp_communication/vpp/build-data/../src/vlib/main.c:1622
#9  vlib_main_loop (vm=0x7fab3c668320 <vlib_global_main>)
    at /home/vpp_communication/vpp/build-data/../src/vlib/main.c:1641
#10 vlib_main (vm=vm@entry=0x7fab3c668320 <vlib_global_main>, 
input=input@entry=0x7faafab32fa0)
    at /home/vpp_communication/vpp/build-data/../src/vlib/main.c:1799
#11 0x00007fab3c44f433 in thread0 (arg=140373429486368)
    at /home/vpp_communication/vpp/build-data/../src/vlib/unix/main.c:534
#12 0x00007fab3ba4dbf8 in clib_calljmp () at 
/home/vpp_communication/vpp/build-data/../src/vppinfra/longjmp.S:110
#13 0x00007ffe9df58600 in ?? ()
#14 0x00007fab3c44ffb5 in vlib_unix_main (argc=<optimized out>, argv=<optimized 
out>)
    at /home/vpp_communication/vpp/build-data/../src/vlib/unix/main.c:597
#15 0x0000000000000000 in ?? ()

Thanks,
xyxue




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Re: [vpp-dev] Failed to use vcl_test_client

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