HONEYCOMB-228 Snat plugin jvpp support

Change-Id: I5510a0ae3ecfeb5bd41c3a73e6e05465ebd96165
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>

6 files changed, 305 insertions, 0 deletions

diff --git a/plugins/snat-plugin/Makefile.am b/plugins/snat-plugin/Makefile.am
index 91fec414363..081340b5ff1 100644
--- a/plugins/snat-plugin/Makefile.am
+++ b/plugins/snat-plugin/Makefile.am
@@ -58,3 +58,58 @@ snat_test_plugin_la_SOURCES = \
 install-data-hook:
 	@(cd $(vpppluginsdir) && $(RM) $(vppplugins_LTLIBRARIES))
 	@(cd $(vppapitestpluginsdir) && $(RM) $(vppapitestplugins_LTLIBRARIES))
+
+
+
+#
+# Java code generation
+#
+jvpp_registry_root = ../../vpp-api/java
+jvpp_registry_version = 16.12
+jsnat_jarfile = jvpp-snat-$(PACKAGE_VERSION).jar
+jvpp_package_dir = io/fd/vpp/jvpp/snat
+jvpp_root = snat/jvpp
+jvpp_target_dir = target
+jvpp_target = $(jvpp_root)/$(jvpp_target_dir)
+api_file=$(srcdir)/snat/snat.api
+
+lib_LTLIBRARIES = libjvpp_snat.la
+libjvpp_snat_la_SOURCES = snat/snat.api.h snat/jvpp_snat.c snat/jvpp/io_fd_vpp_jvpp_snat_JVppSnatImpl.h
+libjvpp_snat_la_LIBADD = -lvlibmemoryclient -lvlibapi -lvppinfra \
+	              -lpthread -lm -lrt -L$(jvpp_registry_root)/.libs -ljvpp_common
+libjvpp_snat_la_LDFLAGS = -module
+libjvpp_snat_la_CPPFLAGS = -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/linux -I../ -I$(srcdir)/../
+
+BUILT_SOURCES += $(jvpp_root)/io_fd_vpp_jvpp_snat_JVppSnatImpl.h
+
+$(jvpp_root)/io_fd_vpp_jvpp_snat_JVppSnatImpl.h: defs_snat_papi.py
+	dir=`pwd`;						\
+	mkdir -p $(jvpp_target); \
+	mkdir -p $(jvpp_root)/$(jvpp_package_dir); 		\
+	cd $(jvpp_root)/$(jvpp_package_dir);			\
+	mkdir -p dto future callfacade callback notification test; 	\
+	@srcdir@/$(jvpp_registry_root)/jvpp/gen/jvpp_gen.py -i $${dir}/defs_snat_papi.py --plugin_name snat --control_ping_class SnatControlPing;		\
+	cd -;							\
+	mv -f $(jvpp_root)/$(jvpp_package_dir)/jvpp_snat_gen.h $(jvpp_root)/jvpp_snat_gen.h;							\
+	cp $(srcdir)/$(jvpp_root)/$(jvpp_package_dir)/test/*.java $(jvpp_root)/$(jvpp_package_dir)/test/;				\
+	cd $(jvpp_root);				\
+	$(JAVAC) -classpath .:$(jvpp_target_dir):../../$(jvpp_registry_root)/jvpp-registry-$(jvpp_registry_version).jar -d $(jvpp_target_dir) $(jvpp_package_dir)/*.java \
+		$(jvpp_package_dir)/dto/*.java \
+		$(jvpp_package_dir)/callback/*.java \
+		$(jvpp_package_dir)/notification/*.java \
+		$(jvpp_package_dir)/future/*.java 	\
+		$(jvpp_package_dir)/callfacade/*.java 	\
+		$(jvpp_package_dir)/test/*.java \
+		|| (echo "snat jvpp compilation failed: $$?"; exit 1);	\
+	$(JAVAH) -classpath .:$(jvpp_target_dir):../../$(jvpp_registry_root)/jvpp-registry-$(jvpp_registry_version).jar -d . io.fd.vpp.jvpp.snat.JVppSnatImpl ;
+
+$(jsnat_jarfile): libjvpp_snat.la
+	cp .libs/libjvpp_snat.so.0.0.0 $(jvpp_target);				\
+	cd $(jvpp_target);				\
+	$(JAR) cfv $(JARFLAGS) ../../../$@ libjvpp_snat.so.0.0.0 $(jvpp_package_dir)/* ; cd ..;
+
+defs_snat_papi.py:
+	@echo "  jSnat_sfc API"; \
+        vppapigen --input $(api_file) --python defs_snat_papi.py;
+
+all-local: $(jsnat_jarfile)
diff --git a/plugins/snat-plugin/configure.ac b/plugins/snat-plugin/configure.ac
index 9af139e4073..e7408b93850 100644
--- a/plugins/snat-plugin/configure.ac
+++ b/plugins/snat-plugin/configure.ac
@@ -1,4 +1,5 @@
 AC_INIT(snat_plugin, 1.0)
+AC_CONFIG_MACRO_DIR([../../vpp-api/java/m4])
 AM_INIT_AUTOMAKE
 AM_SILENT_RULES([yes])
 AC_PREFIX_DEFAULT([/usr])
@@ -6,6 +7,20 @@ AC_PREFIX_DEFAULT([/usr])
 AC_PROG_LIBTOOL
 AC_PROG_CC
 
+if test -f /usr/bin/lsb_release  && test `lsb_release -si` == "Ubuntu"  && test `lsb_release -sr` == "14.04"  && test -d /usr/lib/jvm/java-8-openjdk-amd64/ ; then
+    JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/
+    JAVAC=${JAVA_HOME}/bin/javac
+    PATH=${JAVA_HOME}/bin/:${PATH}
+    break
+fi
+
+AX_CHECK_JAVA_HOME
+AX_PROG_JAVAC
+AX_PROG_JAVAH
+AX_PROG_JAR
+AX_PROG_JAVADOC
+AX_PROG_JAVA
+
 AC_ARG_WITH(dpdk,
             AC_HELP_STRING([--with-dpdk],[Use the Intel dpdk]),
             [with_dpdk=1],
diff --git a/plugins/snat-plugin/snat/jvpp/io/fd/vpp/jvpp/snat/test/CallbackApiTest.java b/plugins/snat-plugin/snat/jvpp/io/fd/vpp/jvpp/snat/test/CallbackApiTest.java
new file mode 100644
index 00000000000..850e1774fbc
--- /dev/null
+++ b/plugins/snat-plugin/snat/jvpp/io/fd/vpp/jvpp/snat/test/CallbackApiTest.java
@@ -0,0 +1,70 @@
+/*
+ * 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.
+ */
+
+package io.fd.vpp.jvpp.snat.test;
+
+import io.fd.vpp.jvpp.JVpp;
+import io.fd.vpp.jvpp.JVppRegistry;
+import io.fd.vpp.jvpp.JVppRegistryImpl;
+import io.fd.vpp.jvpp.VppCallbackException;
+import io.fd.vpp.jvpp.snat.JVppSnatImpl;
+import io.fd.vpp.jvpp.snat.callback.SnatInterfaceAddDelFeatureCallback;
+import io.fd.vpp.jvpp.snat.dto.SnatInterfaceAddDelFeature;
+import io.fd.vpp.jvpp.snat.dto.SnatInterfaceAddDelFeatureReply;
+
+public class CallbackApiTest {
+
+    static class TestCallback implements SnatInterfaceAddDelFeatureCallback {
+
+        @Override
+        public void onSnatInterfaceAddDelFeatureReply(final SnatInterfaceAddDelFeatureReply msg) {
+            System.out.printf("Received SnatInterfaceAddDelFeatureReply: context=%d\n",
+                msg.context);
+        }
+
+        @Override
+        public void onError(VppCallbackException ex) {
+            System.out.printf("Received onError exception: call=%s, context=%d, retval=%d\n", ex.getMethodName(),
+                ex.getCtxId(), ex.getErrorCode());
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        testCallbackApi();
+    }
+
+    private static void testCallbackApi() throws Exception {
+        System.out.println("Testing Java callback API for snat plugin");
+        JVppRegistry registry = new JVppRegistryImpl("SnatCallbackApiTest");
+        JVpp jvpp = new JVppSnatImpl();
+
+        registry.register(jvpp, new TestCallback());
+
+        System.out.println("Sending SnatInterfaceAddDelFeature request...");
+        SnatInterfaceAddDelFeature request = new SnatInterfaceAddDelFeature();
+        request.isAdd = 1;
+        request.isInside = 1;
+        request.swIfIndex = 1;
+        final int result = jvpp.send(request);
+        System.out.printf("SnatInterfaceAddDelFeature send result = %d\n", result);
+
+        Thread.sleep(1000);
+
+        System.out.println("Disconnecting...");
+        registry.close();
+        Thread.sleep(1000);
+    }
+}
diff --git a/plugins/snat-plugin/snat/jvpp/io/fd/vpp/jvpp/snat/test/Readme.txt b/plugins/snat-plugin/snat/jvpp/io/fd/vpp/jvpp/snat/test/Readme.txt
new file mode 100644
index 00000000000..ac1b8f3f787
--- /dev/null
+++ b/plugins/snat-plugin/snat/jvpp/io/fd/vpp/jvpp/snat/test/Readme.txt
@@ -0,0 +1 @@
+sudo java -cp build-vpp-native/vpp-api/java/jvpp-registry-16.12.jar:build-vpp-native/vpp-api/java/jvpp-core-16.12.jar:build-vpp-native/plugins/snat-plugin/jvpp-snat-1.0.jar io.fd.vpp.jvpp.snat.test.CallbackApiTest
diff --git a/plugins/snat-plugin/snat/jvpp_snat.c b/plugins/snat-plugin/snat/jvpp_snat.c
new file mode 100644
index 00000000000..537299ae751
--- /dev/null
+++ b/plugins/snat-plugin/snat/jvpp_snat.c
@@ -0,0 +1,119 @@
+/*
+ * 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 <snat/snat_msg_enum.h>
+#define vl_typedefs             /* define message structures */
+#include <snat/snat_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun
+#include <snat/snat_all_api_h.h>
+#undef vl_endianfun
+
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <snat/snat_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <snat/snat_all_api_h.h>
+#undef vl_api_version
+
+#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 "snat/jvpp/io_fd_vpp_jvpp_snat_JVppSnatImpl.h"
+#include "jvpp_snat.h"
+#include "snat/jvpp/jvpp_snat_gen.h"
+
+/*
+ * Class:     io_fd_vpp_jvpp_snat_JVppsnatImpl
+ * Method:    init0
+ * Signature: (JI)V
+ */
+JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_snat_JVppSnatImpl_init0
+  (JNIEnv *env, jclass clazz, jobject callback, jlong queue_address, jint my_client_index) {
+  snat_main_t * plugin_main = &snat_main;
+  u8 * name;
+  clib_warning ("Java_io_fd_vpp_jvpp_snat_JVppSnatImpl_init0");
+
+  plugin_main->my_client_index = my_client_index;
+  plugin_main->vl_input_queue = (unix_shared_memory_queue_t *)queue_address;
+
+    name = format (0, "snat_%08x%c", api_version, 0);
+    plugin_main->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+  plugin_main->callbackObject = (*env)->NewGlobalRef(env, callback);
+  plugin_main->callbackClass = (jclass)(*env)->NewGlobalRef(env, (*env)->GetObjectClass(env, callback));
+
+    #define _(N,n)                                  \
+        vl_msg_api_set_handlers(VL_API_##N + plugin_main->msg_id_base, #n,     \
+                vl_api_##n##_t_handler,             \
+                vl_noop_handler,                    \
+                vl_api_##n##_t_endian,              \
+                vl_api_##n##_t_print,               \
+                sizeof(vl_api_##n##_t), 1);
+        foreach_api_reply_handler;
+    #undef _
+}
+
+JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_snat_JVppSnatImpl_close0
+(JNIEnv *env, jclass clazz) {
+  snat_main_t * plugin_main = &snat_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 SNAT */
+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 SNAT */
+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/plugins/snat-plugin/snat/jvpp_snat.h b/plugins/snat-plugin/snat/jvpp_snat.h
new file mode 100644
index 00000000000..6426bda8834
--- /dev/null
+++ b/plugins/snat-plugin/snat/jvpp_snat.h
@@ -0,0 +1,45 @@
+/*
+ * 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_snat_h__
+#define __included_jvpp_snat_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-SNAT */
+typedef struct {
+    /* Base message index for the nsh plugin */
+    u16 msg_id_base;
+
+    /* 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;
+
+} snat_main_t;
+
+snat_main_t snat_main __attribute__((aligned (64)));
+
+
+#endif /* __included_jvpp_snat_h__ */