Fix sample plugin breakage.

Add vat_helper_macros.h to be installed in /usr/include/vlibapi
Define a version for the sample plugin (separate from the VPP versioning).
Hook up vnet_main in plugin init.

Change-Id: I293b9dc824d0813ea2bb8747d535e4210a88b385
Signed-off-by: Anlu Yan <ayan@cisco.com>

src/examples/sample-plugin/sample/sample.c

@@ -79,26 +79,11 @@ do {                                                            \
 #define foreach_sample_plugin_api_msg                           \
 _(SAMPLE_MACSWAP_ENABLE_DISABLE, sample_macswap_enable_disable)
 
-/* 
- * This routine exists to convince the vlib plugin framework that
- * we haven't accidentally copied a random .dll into the plugin directory.
- *
- * Also collects global variable pointers passed from the vpp engine
- */
-
-clib_error_t * 
-vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
-                      int from_early_init)
-{
-  sample_main_t * sm = &sample_main;
-  clib_error_t * error = 0;
-
-  sm->vlib_main = vm;
-  sm->vnet_main = h->vnet_main;
-  sm->ethernet_main = h->ethernet_main;
-
-  return error;
-}
+/* *INDENT-OFF* */
+VLIB_PLUGIN_REGISTER () = {
+    .version = SAMPLE_PLUGIN_BUILD_VER,
+};
+/* *INDENT-ON* */
 
 /* Action function shared between message handler and debug CLI */
 
@@ -229,6 +214,8 @@ static clib_error_t * sample_init (vlib_main_t * vm)
   clib_error_t * error = 0;
   u8 * name;
 
+  sm->vnet_main =  vnet_get_main ();
+
   name = format (0, "sample_%08x%c", api_version, 0);
 
   /* Ask for a correctly-sized block of API message decode slots */

src/examples/sample-plugin/sample/sample.h

@@ -28,13 +28,13 @@ typedef struct {
     u16 msg_id_base;
 
     /* convenience */
-    vlib_main_t * vlib_main;
     vnet_main_t * vnet_main;
-    ethernet_main_t * ethernet_main;
 } sample_main_t;
 
 sample_main_t sample_main;
 
 extern vlib_node_registration_t sample_node;
 
+#define SAMPLE_PLUGIN_BUILD_VER "1.0"
+
 #endif /* __included_sample_h__ */

src/vlib-api.am

@@ -34,7 +34,7 @@ libvlibapi_la_SOURCES = 			\
 	vlibapi/api_shared.c			\
 	vlibapi/node_serialize.c
 
-nobase_include_HEADERS += vlibapi/api.h vlibapi/api_helper_macros.h
+nobase_include_HEADERS += vlibapi/api.h vlibapi/api_helper_macros.h vlibapi/vat_helper_macros.h
 
 libvlibmemoryclient_la_DEPENDENCIES = libvppinfra.la libsvm.la libvlib.la libvlibmemory.la libvlibapi.la
 libvlibmemoryclient_la_LIBADD = $(libvlibmemoryclient_la_DEPENDENCIES) -lpthread