Add GTP-U plugin. VPP-694

Basic GTP-U feature

Change-Id: I31226f890a92c5303ac06e112ed7820cae52d9bd
Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>

3 files changed, 169 insertions, 0 deletions

diff --git a/src/vpp-api/java/Makefile.am b/src/vpp-api/java/Makefile.am
index f18e0c24f67..4f1f7ed24f0 100644
--- a/src/vpp-api/java/Makefile.am
+++ b/src/vpp-api/java/Makefile.am
@@ -129,6 +129,26 @@ jvpp-acl/io_fd_vpp_jvpp_acl_JVppAclImpl.h: $(jvpp_registry_ok) $(jvpp_acl_json_f
 endif
 
 #
+# GTPU Plugin
+#
+if ENABLE_GTPU_PLUGIN
+noinst_LTLIBRARIES += libjvpp_gtpu.la
+libjvpp_gtpu_la_SOURCES = jvpp-gtpu/jvpp_gtpu.c
+libjvpp_gtpu_la_CPPFLAGS = -Ijvpp-gtpu
+libjvpp_gtpu_la_LIBADD = $(JVPP_LIBS)
+libjvpp_gtpu_la_DEPENDENCIES = libjvpp_common.la
+
+BUILT_SOURCES += jvpp-gtpu/io_fd_vpp_jvpp_gtpu_JVppGtpuImpl.h
+JAR_FILES += jvpp-gtpu-$(PACKAGE_VERSION).jar
+CLEANDIRS += jvpp-gtpu/target
+
+jvpp_gtpu_json_files = @top_builddir@/plugins/gtpu/gtpu.api.json
+
+jvpp-gtpu/io_fd_vpp_jvpp_gtpu_JVppGtpuImpl.h: $(jvpp_registry_ok) $(jvpp_gtpu_json_files)
+	$(call japigen,gtpu,JVppGtpuImpl)
+endif
+
+#
 # SNAT Plugin
 #
 if ENABLE_SNAT_PLUGIN
diff --git a/src/vpp-api/java/jvpp-gtpu/jvpp_gtpu.c b/src/vpp-api/java/jvpp-gtpu/jvpp_gtpu.c
new file mode 100644
index 00000000000..12b3090eabd
--- /dev/null
+++ b/src/vpp-api/java/jvpp-gtpu/jvpp_gtpu.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/vnet.h>
+
+#include <gtpu/gtpu_msg_enum.h>
+#define vl_typedefs             /* define message structures */
+#include <gtpu/gtpu_all_api_h.h>
+#undef vl_typedefs
+
+#include <vnet/api_errno.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+
+#if VPPJNI_DEBUG == 1
+  #define DEBUG_LOG(...) clib_warning(__VA_ARGS__)
+#else
+  #define DEBUG_LOG(...)
+#endif
+
+#include <jvpp-common/jvpp_common.h>
+
+#include "jvpp-gtpu/io_fd_vpp_jvpp_gtpu_JVppGtpuImpl.h"
+#include "jvpp_gtpu.h"
+#include "jvpp-gtpu/jvpp_gtpu_gen.h"
+
+/*
+ * Class:     io_fd_vpp_jvpp_gtpu_JVppgtpuImpl
+ * Method:    init0
+ * Signature: (JI)V
+ */
+JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_gtpu_JVppGtpuImpl_init0
+  (JNIEnv *env, jclass clazz, jobject callback, jlong queue_address, jint my_client_index) {
+  gtpu_main_t * plugin_main = &gtpu_main;
+  clib_warning ("Java_io_fd_vpp_jvpp_gtpu_JVppGtpuImpl_init0");
+
+  plugin_main->my_client_index = my_client_index;
+  plugin_main->vl_input_queue = (unix_shared_memory_queue_t *)queue_address;
+
+  plugin_main->callbackObject = (*env)->NewGlobalRef(env, callback);
+  plugin_main->callbackClass = (jclass)(*env)->NewGlobalRef(env, (*env)->GetObjectClass(env, callback));
+
+  // verify API has not changed since jar generation
+  #define _(N)             \
+      get_message_id(env, #N);  \
+      foreach_supported_api_message;
+  #undef _
+
+  #define _(N,n)                                  \
+      vl_msg_api_set_handlers(get_message_id(env, #N), #n,     \
+              vl_api_##n##_t_handler,             \
+              vl_noop_handler,                    \
+              vl_noop_handler,                    \
+              vl_noop_handler,                    \
+              sizeof(vl_api_##n##_t), 1);
+      foreach_api_reply_handler;
+  #undef _
+}
+
+JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_gtpu_JVppGtpuImpl_close0
+(JNIEnv *env, jclass clazz) {
+  gtpu_main_t * plugin_main = &gtpu_main;
+
+    // cleanup:
+    (*env)->DeleteGlobalRef(env, plugin_main->callbackClass);
+    (*env)->DeleteGlobalRef(env, plugin_main->callbackObject);
+
+    plugin_main->callbackClass = NULL;
+    plugin_main->callbackObject = NULL;
+}
+
+/* Attach thread to JVM and cache class references when initiating JVPP ACL */
+jint JNI_OnLoad(JavaVM *vm, void *reserved) {
+    JNIEnv* env;
+
+    if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) {
+        return JNI_EVERSION;
+    }
+
+    if (cache_class_references(env) != 0) {
+        clib_warning ("Failed to cache class references\n");
+        return JNI_ERR;
+    }
+
+    return JNI_VERSION_1_8;
+}
+
+/* Clean up cached references when disposing JVPP ACL */
+void JNI_OnUnload(JavaVM *vm, void *reserved) {
+    JNIEnv* env;
+    if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) {
+        return;
+    }
+    delete_class_references(env);
+}
diff --git a/src/vpp-api/java/jvpp-gtpu/jvpp_gtpu.h b/src/vpp-api/java/jvpp-gtpu/jvpp_gtpu.h
new file mode 100644
index 00000000000..447776ce0b8
--- /dev/null
+++ b/src/vpp-api/java/jvpp-gtpu/jvpp_gtpu.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef __included_jvpp_gtpu_h__
+#define __included_jvpp_gtpu_h__
+
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/api_errno.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <jni.h>
+
+/* Global state for JVPP-gtpu */
+typedef struct {
+    /* Pointer to shared memory queue */
+    unix_shared_memory_queue_t * vl_input_queue;
+
+    /* VPP api client index */
+    u32 my_client_index;
+
+    /* Callback object and class references enabling asynchronous Java calls */
+    jobject callbackObject;
+    jclass callbackClass;
+
+} gtpu_main_t;
+
+gtpu_main_t gtpu_main __attribute__((aligned (64)));
+
+
+#endif /* __included_jvpp_gtpu_h__ */