vcl: support for eventfd mq signaling
[vpp.git] / src / vnet / session / application_interface.c
index 1023c8c..524e7b5 100644 (file)
     VPP's application/session API bind/unbind/connect/disconnect calls
 */
 
+/*
+ * TLS server cert and keys to be used for testing only
+ */
+const char test_srv_crt_rsa[] =
+  "-----BEGIN CERTIFICATE-----\r\n"
+  "MIID5zCCAs+gAwIBAgIJALeMYCEHrTtJMA0GCSqGSIb3DQEBCwUAMIGJMQswCQYD\r\n"
+  "VQQGEwJVUzELMAkGA1UECAwCQ0ExETAPBgNVBAcMCFNhbiBKb3NlMQ4wDAYDVQQK\r\n"
+  "DAVDaXNjbzEOMAwGA1UECwwFZmQuaW8xFjAUBgNVBAMMDXRlc3R0bHMuZmQuaW8x\r\n"
+  "IjAgBgkqhkiG9w0BCQEWE3ZwcC1kZXZAbGlzdHMuZmQuaW8wHhcNMTgwMzA1MjEx\r\n"
+  "NTEyWhcNMjgwMzAyMjExNTEyWjCBiTELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAkNB\r\n"
+  "MREwDwYDVQQHDAhTYW4gSm9zZTEOMAwGA1UECgwFQ2lzY28xDjAMBgNVBAsMBWZk\r\n"
+  "LmlvMRYwFAYDVQQDDA10ZXN0dGxzLmZkLmlvMSIwIAYJKoZIhvcNAQkBFhN2cHAt\r\n"
+  "ZGV2QGxpc3RzLmZkLmlvMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA\r\n"
+  "4C1k8a1DuStgggqT4o09fP9sJ2dC54bxhS/Xk2VEfaIZ222WSo4X/syRVfVy9Yah\r\n"
+  "cpI1zJ/RDxaZSFhgA+nPZBrFMsrULkrdAOpOVj8eDEp9JuWdO2ODSoFnCvLxcYWB\r\n"
+  "Yc5kHryJpEaGJl1sFQSesnzMFty/59ta0stk0Fp8r5NhIjWvSovGzPo6Bhz+VS2c\r\n"
+  "ebIZh4x1t2hHaFcgm0qJoJ6DceReWCW8w+yOVovTolGGq+bpb2Hn7MnRSZ2K2NdL\r\n"
+  "+aLXpkZbS/AODP1FF2vTO1mYL290LO7/51vJmPXNKSDYMy5EvILr5/VqtjsFCwRL\r\n"
+  "Q4jcM/+GeHSAFWx4qIv0BwIDAQABo1AwTjAdBgNVHQ4EFgQUWa1SOB37xmT53tZQ\r\n"
+  "aXuLLhRI7U8wHwYDVR0jBBgwFoAUWa1SOB37xmT53tZQaXuLLhRI7U8wDAYDVR0T\r\n"
+  "BAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAoUht13W4ya27NVzQuCMvqPWL3VM4\r\n"
+  "3xbPFk02FaGz/WupPu276zGlzJAZrbuDcQowwwU1Ni1Yygxl96s1c2M5rHDTrOKG\r\n"
+  "rK0hbkSFBo+i6I8u4HiiQ4rYmG0Hv6+sXn3of0HsbtDPGgWZoipPWDljPYEURu3e\r\n"
+  "3HRe/Dtsj9CakBoSDzs8ndWaBR+f4sM9Tk1cjD46Gq2T/qpSPXqKxEUXlzhdCAn4\r\n"
+  "twub17Bq2kykHpppCwPg5M+v30tHG/R2Go15MeFWbEJthFk3TZMjKL7UFs7fH+x2\r\n"
+  "wSonXb++jY+KmCb93C+soABBizE57g/KmiR2IxQ/LMjDik01RSUIaM0lLA==\r\n"
+  "-----END CERTIFICATE-----\r\n";
+const u32 test_srv_crt_rsa_len = sizeof (test_srv_crt_rsa);
+
+const char test_srv_key_rsa[] =
+  "-----BEGIN PRIVATE KEY-----\r\n"
+  "MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDgLWTxrUO5K2CC\r\n"
+  "CpPijT18/2wnZ0LnhvGFL9eTZUR9ohnbbZZKjhf+zJFV9XL1hqFykjXMn9EPFplI\r\n"
+  "WGAD6c9kGsUyytQuSt0A6k5WPx4MSn0m5Z07Y4NKgWcK8vFxhYFhzmQevImkRoYm\r\n"
+  "XWwVBJ6yfMwW3L/n21rSy2TQWnyvk2EiNa9Ki8bM+joGHP5VLZx5shmHjHW3aEdo\r\n"
+  "VyCbSomgnoNx5F5YJbzD7I5Wi9OiUYar5ulvYefsydFJnYrY10v5otemRltL8A4M\r\n"
+  "/UUXa9M7WZgvb3Qs7v/nW8mY9c0pINgzLkS8guvn9Wq2OwULBEtDiNwz/4Z4dIAV\r\n"
+  "bHioi/QHAgMBAAECggEBAMzGipP8+oT166U+NlJXRFifFVN1DvdhG9PWnOxGL+c3\r\n"
+  "ILmBBC08WQzmHshPemBvR6DZkA1H23cV5JTiLWrFtC00CvhXsLRMrE5+uWotI6yE\r\n"
+  "iofybMroHvD6/X5R510UX9hQ6MHu5ShLR5VZ9zXHz5MpTmB/60jG5dLx+jgcwBK8\r\n"
+  "LuGv2YB/WCUwT9QJ3YU2eaingnXtz/MrFbkbltrqlnBdlD+kTtw6Yac9y1XuuQXc\r\n"
+  "BPeulLNDuPolJVWbUvDBZrpt2dXTgz8ws1sv+wCNE0xwQJsqW4Nx3QkpibUL9RUr\r\n"
+  "CVbKlNfa9lopT6nGKlgX69R/uH35yh9AOsfasro6w0ECgYEA82UJ8u/+ORah+0sF\r\n"
+  "Q0FfW5MTdi7OAUHOz16pUsGlaEv0ERrjZxmAkHA/VRwpvDBpx4alCv0Hc39PFLIk\r\n"
+  "nhSsM2BEuBkTAs6/GaoNAiBtQVE/hN7awNRWVmlieS0go3Y3dzaE9IUMyj8sPOFT\r\n"
+  "5JdJ6BM69PHKCkY3dKdnnfpFEuECgYEA68mRpteunF1mdZgXs+WrN+uLlRrQR20F\r\n"
+  "ZyMYiUCH2Dtn26EzA2moy7FipIIrQcX/j+KhYNGM3e7MU4LymIO29E18mn8JODnH\r\n"
+  "sQOXzBTsf8A4yIVMkcuQD3bfb0JiUGYUPOidTp2N7IJA7+6Yc3vQOyb74lnKnJoO\r\n"
+  "gougPT2wS+cCgYAn7muzb6xFsXDhyW0Tm6YJYBfRS9yAWEuVufINobeBZPSl2cN1\r\n"
+  "Jrnw+HlrfTNbrJWuJmjtZJXUXQ6cVp2rUbjutNyRV4vG6iRwEXYQ40EJdkr1gZpi\r\n"
+  "CHQhuShuuPih2MNAy7EEbM+sXrDjTBR3bFqzuHPzu7dp+BshCFX3lRfAAQKBgGQt\r\n"
+  "K5i7IhCFDjb/+3IPLgOAK7mZvsvZ4eXD33TQ2eZgtut1PXtBtNl17/b85uv293Fm\r\n"
+  "VDISVcsk3eLNS8zIiT6afUoWlxAwXEs0v5WRfjl4radkGvgGiJpJYvyeM67877RB\r\n"
+  "EDSKc/X8ESLfOB44iGvZUEMG6zJFscx9DgN25iQZAoGAbyd+JEWwdVH9/K3IH1t2\r\n"
+  "PBkZX17kNWv+iVM1WyFjbe++vfKZCrOJiyiqhDeEqgrP3AuNMlaaduC3VRC3G5oV\r\n"
+  "Mj1tlhDWQ/qhvKdCKNdIVQYDE75nw+FRWV8yYkHAnXYW3tNoweDIwixE0hkPR1bc\r\n"
+  "oEjPLVNtx8SOj/M4rhaPT3I=\r\n" "-----END PRIVATE KEY-----\r\n";
+const u32 test_srv_key_rsa_len = sizeof (test_srv_key_rsa);
+
 static u8
 session_endpoint_is_local (session_endpoint_t * sep)
 {
@@ -38,8 +97,8 @@ session_endpoint_is_zero (session_endpoint_t * sep)
 u8
 session_endpoint_in_ns (session_endpoint_t * sep)
 {
-  u8 is_zero = ip_is_zero (&sep->ip, sep->is_ip4);
-  if (!is_zero && sep->sw_if_index != ENDPOINT_INVALID_INDEX
+  u8 is_lep = session_endpoint_is_local (sep);
+  if (!is_lep && sep->sw_if_index != ENDPOINT_INVALID_INDEX
       && !ip_interface_has_address (sep->sw_if_index, &sep->ip, sep->is_ip4))
     {
       clib_warning ("sw_if_index %u not configured with ip %U",
@@ -47,7 +106,7 @@ session_endpoint_in_ns (session_endpoint_t * sep)
                    sep->is_ip4);
       return 0;
     }
-  return (is_zero || ip_is_local (sep->fib_index, &sep->ip, sep->is_ip4));
+  return (is_lep || ip_is_local (sep->fib_index, &sep->ip, sep->is_ip4));
 }
 
 int
@@ -91,10 +150,10 @@ session_endpoint_update_for_app (session_endpoint_t * sep,
 static int
 vnet_bind_i (u32 app_index, session_endpoint_t * sep, u64 * handle)
 {
+  u64 lh, ll_handle = SESSION_INVALID_HANDLE;
   application_t *app;
   u32 table_index;
-  u64 listener;
-  int rv, have_local = 0;
+  int rv;
 
   app = application_get_if_valid (app_index);
   if (!app)
@@ -109,23 +168,23 @@ vnet_bind_i (u32 app_index, session_endpoint_t * sep, u64 * handle)
 
   table_index = application_session_table (app,
                                           session_endpoint_fib_proto (sep));
-  listener = session_lookup_endpoint_listener (table_index, sep, 1);
-  if (listener != SESSION_INVALID_HANDLE)
+  lh = session_lookup_endpoint_listener (table_index, sep, 1);
+  if (lh != SESSION_INVALID_HANDLE)
     return VNET_API_ERROR_ADDRESS_IN_USE;
 
   /*
    * Add session endpoint to local session table. Only binds to "inaddr_any"
    * (i.e., zero address) are added to local scope table.
    */
-  if (application_has_local_scope (app) && session_endpoint_is_zero (sep))
+  if (application_has_local_scope (app) && session_endpoint_is_local (sep))
     {
       if ((rv = application_start_local_listen (app, sep, handle)))
        return rv;
-      have_local = 1;
+      ll_handle = *handle;
     }
 
   if (!application_has_global_scope (app))
-    return (have_local - 1);
+    return (ll_handle == SESSION_INVALID_HANDLE ? -1 : 0);
 
   /*
    * Add session endpoint to global session table
@@ -133,8 +192,22 @@ vnet_bind_i (u32 app_index, session_endpoint_t * sep, u64 * handle)
 
   /* Setup listen path down to transport */
   rv = application_start_listen (app, sep, handle);
-  if (rv && have_local)
+  if (rv && ll_handle != SESSION_INVALID_HANDLE)
     session_lookup_del_session_endpoint (table_index, sep);
+
+  /*
+   * Store in local table listener the index of the transport layer
+   * listener. We'll need local listeners are hit and we need to
+   * return global handle
+   */
+  if (ll_handle != SESSION_INVALID_HANDLE)
+    {
+      local_session_t *ll;
+      stream_session_t *tl;
+      ll = application_get_local_listener_w_handle (ll_handle);
+      tl = listen_session_get_from_handle (*handle);
+      ll->transport_listener_index = tl->session_index;
+    }
   return rv;
 }
 
@@ -165,8 +238,8 @@ vnet_unbind_i (u32 app_index, session_handle_t handle)
 }
 
 int
-vnet_connect_i (u32 client_index, u32 api_context, session_endpoint_t * sep,
-               void *mp)
+application_connect (u32 client_index, u32 api_context,
+                    session_endpoint_t * sep)
 {
   application_t *server, *client;
   u32 table_index, server_index, li;
@@ -192,6 +265,9 @@ vnet_connect_i (u32 client_index, u32 api_context, session_endpoint_t * sep,
       if (lh == SESSION_DROP_HANDLE)
        return VNET_API_ERROR_APP_CONNECT_FILTERED;
 
+      if (lh == SESSION_INVALID_HANDLE)
+       goto global_scope;
+
       local_session_parse_handle (lh, &server_index, &li);
 
       /*
@@ -199,9 +275,9 @@ vnet_connect_i (u32 client_index, u32 api_context, session_endpoint_t * sep,
        * can happen if client is a generic proxy. Route connect through
        * global table instead.
        */
-      if (server_index != client_index
-         && (server = application_get_if_valid (server_index)))
+      if (server_index != client_index)
        {
+         server = application_get (server_index);
          ll = application_get_local_listen_session (server, li);
          return application_local_session_connect (table_index, client,
                                                    server, ll, api_context);
@@ -212,6 +288,8 @@ vnet_connect_i (u32 client_index, u32 api_context, session_endpoint_t * sep,
    * If nothing found, check the global scope for locally attached
    * destinations. Make sure first that we're allowed to.
    */
+
+global_scope:
   if (session_endpoint_is_local (sep))
     return VNET_API_ERROR_SESSION_CONNECT;
 
@@ -241,8 +319,9 @@ vnet_connect_i (u32 client_index, u32 api_context, session_endpoint_t * sep,
 /**
  * unformat a vnet URI
  *
- * transport-proto://ip46-addr:port
- * eg. tcp://ip46-addr:port
+ * transport-proto://[hostname]ip46-addr:port
+ * eg.         tcp://ip46-addr:port
+ *     tls://[testtsl.fd.io]ip46-addr:port
  *
  * u8 ip46_address[16];
  * u16  port_in_host_byte_order;
@@ -257,23 +336,42 @@ vnet_connect_i (u32 client_index, u32 api_context, session_endpoint_t * sep,
 uword
 unformat_vnet_uri (unformat_input_t * input, va_list * args)
 {
-  session_endpoint_t *sep = va_arg (*args, session_endpoint_t *);
-  u32 transport_proto = 0;
+  session_endpoint_extended_t *sep = va_arg (*args,
+                                            session_endpoint_extended_t *);
+  u32 transport_proto = 0, port;
+
   if (unformat (input, "%U://%U/%d", unformat_transport_proto,
-               &transport_proto, unformat_ip4_address, &sep->ip.ip4,
-               &sep->port))
+               &transport_proto, unformat_ip4_address, &sep->ip.ip4, &port))
     {
       sep->transport_proto = transport_proto;
-      sep->port = clib_host_to_net_u16 (sep->port);
+      sep->port = clib_host_to_net_u16 (port);
       sep->is_ip4 = 1;
       return 1;
     }
-  if (unformat (input, "%U://%U/%d", unformat_transport_proto,
-               &transport_proto, unformat_ip6_address, &sep->ip.ip6,
-               &sep->port))
+  else if (unformat (input, "%U://[%s]%U/%d", unformat_transport_proto,
+                    &transport_proto, &sep->hostname, unformat_ip4_address,
+                    &sep->ip.ip4, &port))
+    {
+      sep->transport_proto = transport_proto;
+      sep->port = clib_host_to_net_u16 (port);
+      sep->is_ip4 = 1;
+      return 1;
+    }
+  else if (unformat (input, "%U://%U/%d", unformat_transport_proto,
+                    &transport_proto, unformat_ip6_address, &sep->ip.ip6,
+                    &port))
     {
       sep->transport_proto = transport_proto;
-      sep->port = clib_host_to_net_u16 (sep->port);
+      sep->port = clib_host_to_net_u16 (port);
+      sep->is_ip4 = 0;
+      return 1;
+    }
+  else if (unformat (input, "%U://[%s]%U/%d", unformat_transport_proto,
+                    &transport_proto, &sep->hostname, unformat_ip6_address,
+                    &sep->ip.ip6, &port))
+    {
+      sep->transport_proto = transport_proto;
+      sep->port = clib_host_to_net_u16 (port);
       sep->is_ip4 = 0;
       return 1;
     }
@@ -281,10 +379,10 @@ unformat_vnet_uri (unformat_input_t * input, va_list * args)
 }
 
 static u8 *cache_uri;
-static session_endpoint_t *cache_sep;
+static session_endpoint_extended_t *cache_sep;
 
 int
-parse_uri (char *uri, session_endpoint_t * sep)
+parse_uri (char *uri, session_endpoint_extended_t * sep)
 {
   unformat_input_t _input, *input = &_input;
 
@@ -355,10 +453,17 @@ vnet_application_attach (vnet_app_attach_args_t * a)
   u64 secret;
   int rv;
 
-  app = application_lookup (a->api_client_index);
+  if (a->api_client_index != APP_INVALID_INDEX)
+    app = application_lookup (a->api_client_index);
+  else if (a->name)
+    app = application_lookup_name (a->name);
+  else
+    return clib_error_return_code (0, VNET_API_ERROR_INVALID_VALUE, 0,
+                                  "api index or name must be provided");
+
   if (app)
-    return clib_error_return_code (0, VNET_API_ERROR_APP_ALREADY_ATTACHED,
-                                  0, "app already attached");
+    return clib_error_return_code (0, VNET_API_ERROR_APP_ALREADY_ATTACHED, 0,
+                                  "app already attached");
 
   secret = a->options[APP_OPTIONS_NAMESPACE_SECRET];
   if ((rv = session_validate_namespace (a->namespace_id, secret,
@@ -366,11 +471,11 @@ vnet_application_attach (vnet_app_attach_args_t * a)
     return clib_error_return_code (0, rv, 0, "namespace validation: %d", rv);
   a->options[APP_OPTIONS_NAMESPACE] = app_ns_index;
   app = application_new ();
-  if ((rv = application_init (app, a->api_client_index, a->options,
+  if ((rv = application_init (app, a->api_client_index, a->name, a->options,
                              a->session_cb_vft)))
     return clib_error_return_code (0, rv, 0, "app init: %d", rv);
 
-  a->app_event_queue_address = pointer_to_uword (app->event_queue);
+  a->app_evt_q = app->event_queue;
   sm = segment_manager_get (app->first_segment_manager);
   fs = segment_manager_get_segment_w_lock (sm, 0);
 
@@ -408,29 +513,33 @@ vnet_application_detach (vnet_app_detach_args_t * a)
 int
 vnet_bind_uri (vnet_bind_args_t * a)
 {
-  session_endpoint_t sep = SESSION_ENDPOINT_NULL;
+  session_endpoint_extended_t sep = SESSION_ENDPOINT_EXT_NULL;
   int rv;
 
   rv = parse_uri (a->uri, &sep);
   if (rv)
     return rv;
 
-  return vnet_bind_i (a->app_index, &sep, &a->handle);
+  return vnet_bind_i (a->app_index, (session_endpoint_t *) & sep, &a->handle);
 }
 
 int
 vnet_unbind_uri (vnet_unbind_args_t * a)
 {
+  session_endpoint_extended_t sep = SESSION_ENDPOINT_EXT_NULL;
   stream_session_t *listener;
-  session_endpoint_t sep = SESSION_ENDPOINT_NULL;
+  u32 table_index;
   int rv;
 
   rv = parse_uri (a->uri, &sep);
   if (rv)
     return rv;
 
-  /* NOTE: only default table supported for uri */
-  listener = session_lookup_listener (0, &sep);
+  /* NOTE: only default fib tables supported for uri apis */
+  table_index = session_lookup_get_index_for_fib (fib_ip_proto (!sep.is_ip4),
+                                                 0);
+  listener = session_lookup_listener (table_index,
+                                     (session_endpoint_t *) & sep);
   if (!listener)
     return VNET_API_ERROR_ADDRESS_NOT_IN_USE;
 
@@ -440,15 +549,16 @@ vnet_unbind_uri (vnet_unbind_args_t * a)
 clib_error_t *
 vnet_connect_uri (vnet_connect_args_t * a)
 {
-  session_endpoint_t sep_null = SESSION_ENDPOINT_NULL;
+  session_endpoint_extended_t sep = SESSION_ENDPOINT_EXT_NULL;
   int rv;
 
   /* Parse uri */
-  a->sep = sep_null;
-  rv = parse_uri (a->uri, &a->sep);
+  rv = parse_uri (a->uri, &sep);
   if (rv)
     return clib_error_return_code (0, rv, 0, "app init: %d", rv);
-  if ((rv = vnet_connect_i (a->app_index, a->api_context, &a->sep, a->mp)))
+
+  if ((rv = application_connect (a->app_index, a->api_context,
+                                (session_endpoint_t *) & sep)))
     return clib_error_return_code (0, rv, 0, "connect failed");
   return 0;
 }
@@ -459,7 +569,18 @@ vnet_disconnect_session (vnet_disconnect_args_t * a)
   if (session_handle_is_local (a->handle))
     {
       local_session_t *ls;
-      ls = application_get_local_session_from_handle (a->handle);
+
+      /* Disconnect reply came to worker 1 not main thread */
+      if (vlib_get_thread_index () == 1)
+       {
+         vlib_rpc_call_main_thread (vnet_disconnect_session, (u8 *) a,
+                                    sizeof (*a));
+         return 0;
+       }
+
+      if (!(ls = application_get_local_session_from_handle (a->handle)))
+       return 0;
+
       if (ls->app_index != a->app_index && ls->client_index != a->app_index)
        {
          clib_warning ("app %u is neither client nor server for session %u",
@@ -488,7 +609,7 @@ vnet_bind (vnet_bind_args_t * a)
 {
   int rv;
   if ((rv = vnet_bind_i (a->app_index, &a->sep, &a->handle)))
-    return clib_error_return_code (0, rv, 0, "bind failed");
+    return clib_error_return_code (0, rv, 0, "bind failed: %d", rv);
   return 0;
 }
 
@@ -497,16 +618,18 @@ vnet_unbind (vnet_unbind_args_t * a)
 {
   int rv;
   if ((rv = vnet_unbind_i (a->app_index, a->handle)))
-    return clib_error_return_code (0, rv, 0, "unbind failed");
+    return clib_error_return_code (0, rv, 0, "unbind failed: %d", rv);
   return 0;
 }
 
 clib_error_t *
 vnet_connect (vnet_connect_args_t * a)
 {
+  session_endpoint_t *sep = (session_endpoint_t *) & a->sep;
   int rv;
-  if ((rv = vnet_connect_i (a->app_index, a->api_context, &a->sep, a->mp)))
-    return clib_error_return_code (0, rv, 0, "connect failed");
+
+  if ((rv = application_connect (a->app_index, a->api_context, sep)))
+    return clib_error_return_code (0, rv, 0, "connect failed: %d", rv);
   return 0;
 }