diff options
Diffstat (limited to 'src/vpp-api/java/jvpp-nat')
4 files changed, 218 insertions, 0 deletions
diff --git a/src/vpp-api/java/jvpp-nat/io/fd/vpp/jvpp/nat/examples/CallbackApiExample.java b/src/vpp-api/java/jvpp-nat/io/fd/vpp/jvpp/nat/examples/CallbackApiExample.java new file mode 100644 index 00000000000..e4d5cb3370c --- /dev/null +++ b/src/vpp-api/java/jvpp-nat/io/fd/vpp/jvpp/nat/examples/CallbackApiExample.java @@ -0,0 +1,68 @@ +/* + * 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.nat.examples; + +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.nat.JVppNatImpl; +import io.fd.vpp.jvpp.nat.callback.Nat44InterfaceAddDelFeatureCallback; +import io.fd.vpp.jvpp.nat.dto.Nat44InterfaceAddDelFeature; +import io.fd.vpp.jvpp.nat.dto.Nat44InterfaceAddDelFeatureReply; + +public class CallbackApiExample { + + static class TestCallback implements Nat44InterfaceAddDelFeatureCallback { + + @Override + public void onNat44InterfaceAddDelFeatureReply(final Nat44InterfaceAddDelFeatureReply msg) { + System.out.printf("Received Nat44InterfaceAddDelFeatureReply: 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 nat plugin"); + try (final JVppRegistry registry = new JVppRegistryImpl("NatCallbackApiTest"); + final JVpp jvpp = new JVppNatImpl()) { + registry.register(jvpp, new TestCallback()); + + System.out.println("Sending Nat44InterfaceAddDelFeature request..."); + Nat44InterfaceAddDelFeature request = new Nat44InterfaceAddDelFeature(); + request.isAdd = 1; + request.isInside = 1; + request.swIfIndex = 1; + final int result = jvpp.send(request); + System.out.printf("Nat44InterfaceAddDelFeature send result = %d%n", result); + + Thread.sleep(1000); + + System.out.println("Disconnecting..."); + } + } +} diff --git a/src/vpp-api/java/jvpp-nat/io/fd/vpp/jvpp/nat/examples/Readme.txt b/src/vpp-api/java/jvpp-nat/io/fd/vpp/jvpp/nat/examples/Readme.txt new file mode 100644 index 00000000000..ac75e04eac5 --- /dev/null +++ b/src/vpp-api/java/jvpp-nat/io/fd/vpp/jvpp/nat/examples/Readme.txt @@ -0,0 +1 @@ +sudo java -cp build-vpp-native/vpp/vpp-api/java/jvpp-registry-17.10.jar:build-vpp-native/vpp/vpp-api/java/jvpp-nat-17.10.jar io.fd.vpp.jvpp.nat.examples.CallbackApiExample diff --git a/src/vpp-api/java/jvpp-nat/jvpp_nat.c b/src/vpp-api/java/jvpp-nat/jvpp_nat.c new file mode 100644 index 00000000000..85217f04a22 --- /dev/null +++ b/src/vpp-api/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, unix_shared_memory_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) \ + 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_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); +} diff --git a/src/vpp-api/java/jvpp-nat/jvpp_nat.h b/src/vpp-api/java/jvpp-nat/jvpp_nat.h new file mode 100644 index 00000000000..c8f6b683fea --- /dev/null +++ b/src/vpp-api/java/jvpp-nat/jvpp_nat.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_nat_h__ +#define __included_jvpp_nat_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-NAT */ +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; + +} nat_main_t; + +nat_main_t nat_main __attribute__((aligned (64))); + + +#endif /* __included_jvpp_nat_h__ */ |