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-rw-r--r--extras/japi/java/jvpp-nat/jvpp_nat.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/extras/japi/java/jvpp-nat/jvpp_nat.c b/extras/japi/java/jvpp-nat/jvpp_nat.c
new file mode 100644
index 00000000000..bdae1e64913
--- /dev/null
+++ b/extras/japi/java/jvpp-nat/jvpp_nat.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 <nat/nat_msg_enum.h>
+#define vl_typedefs /* define message structures */
+#include <nat/nat_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-nat/io_fd_vpp_jvpp_nat_JVppNatImpl.h"
+#include "jvpp_nat.h"
+#include "jvpp-nat/jvpp_nat_gen.h"
+
+/*
+ * Class: io_fd_vpp_jvpp_nat_JVppNatImpl
+ * Method: init0
+ * Signature: (JI)V
+ */
+JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_nat_JVppNatImpl_init0
+ (JNIEnv *env, jclass clazz, jobject callback, jlong queue_address, jint my_client_index) {
+ nat_main_t * plugin_main = &nat_main;
+ clib_warning ("Java_io_fd_vpp_jvpp_nat_JVppNatImpl_init0");
+
+ plugin_main->my_client_index = my_client_index;
+ plugin_main->vl_input_queue = uword_to_pointer (queue_address, svm_queue_t *);
+
+ 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) \
+ if (get_message_id(env, #N) == 0) return;
+ 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_nat_JVppNatImpl_close0
+(JNIEnv *env, jclass clazz) {
+ nat_main_t * plugin_main = &nat_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);
+}