diff options
Diffstat (limited to 'extras/japi/java/jvpp-registry/jvpp_registry.c')
| -rw-r--r-- | extras/japi/java/jvpp-registry/jvpp_registry.c | 410 |
1 files changed, 0 insertions, 410 deletions
diff --git a/extras/japi/java/jvpp-registry/jvpp_registry.c b/extras/japi/java/jvpp-registry/jvpp_registry.c deleted file mode 100644 index bbe9719c30f..00000000000 --- a/extras/japi/java/jvpp-registry/jvpp_registry.c +++ /dev/null @@ -1,410 +0,0 @@ -/* - * 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. - */ -#define _GNU_SOURCE /* for strcasestr(3) */ -#include <vnet/vnet.h> - -#define vl_api_version(n,v) static u32 vpe_api_version = (v); -#include <vpp/api/vpe.api.h> -#undef vl_api_version - - -#include <jni.h> -#include <jvpp-common/jvpp_common.h> -#include "io_fd_vpp_jvpp_VppJNIConnection.h" -#include "io_fd_vpp_jvpp_JVppRegistryImpl.h" - -#include <vpp/api/vpe_msg_enum.h> -#define vl_typedefs /* define message structures */ -#include <vpp/api/vpe_all_api_h.h> -#undef vl_typedefs - -#define vl_endianfun -#include <vpp/api/vpe_all_api_h.h> -#undef vl_endianfun - -/* instantiate all the print functions we know about */ -#define vl_print(handle, ...) -#define vl_printfun -#include <vpp/api/vpe_all_api_h.h> -#undef vl_printfun - -vlib_main_t vlib_global_main; -vlib_main_t **vlib_mains; - -/* - * The Java runtime isn't compile w/ -fstack-protector, - * so we have to supply missing external references for the - * regular vpp libraries. - */ -void __stack_chk_guard(void) __attribute__((weak)); -void __stack_chk_guard(void) { -} - -#define CONTROL_PING_MESSAGE "control_ping" -#define CONTROL_PING_REPLY_MESSAGE "control_ping_reply" - -typedef struct { - /* UThread attachment */ - volatile u32 control_ping_result_ready; - volatile i32 control_ping_retval; - - /* Control ping callback */ - jobject registryObject; - jclass registryClass; - jclass controlPingReplyClass; - jclass callbackExceptionClass; - int control_ping_msg_id; - int control_ping_reply_msg_id; - - /* Thread cleanup */ - pthread_key_t cleanup_rx_thread_key; - - /* Connected indication */ - volatile u8 is_connected; - u32 vpe_pid; -} jvpp_registry_main_t; - -jvpp_registry_main_t jvpp_registry_main __attribute__((aligned (64))); - -void vl_client_add_api_signatures(vl_api_memclnt_create_t *mp) { - /* - * Send the main API signature in slot 0. This bit of code must - * match the checks in ../vpe/api/api.c: vl_msg_api_version_check(). - */ - mp->api_versions[0] = clib_host_to_net_u32(vpe_api_version); -} - -/* cleanup handler for RX thread */ -static_always_inline void cleanup_rx_thread(void *arg) { - jvpp_main_t * jm = &jvpp_main; - jvpp_registry_main_t * rm = &jvpp_registry_main; - - vppjni_lock(jm, 99); - - int getEnvStat = (*jm->jvm)->GetEnv(jm->jvm, (void **) &(jm->jenv), - JNI_VERSION_1_8); - if (getEnvStat == JNI_EVERSION) { - clib_warning("Unsupported JNI version\n"); - rm->control_ping_retval = VNET_API_ERROR_UNSUPPORTED_JNI_VERSION; - goto out; - } else if (getEnvStat != JNI_EDETACHED) { - (*jm->jvm)->DetachCurrentThread(jm->jvm); - } - out: vppjni_unlock(jm); -} - -static void vl_api_control_ping_reply_t_handler( - vl_api_control_ping_reply_t * mp) { - jvpp_main_t * jm = &jvpp_main; - jvpp_registry_main_t * rm = &jvpp_registry_main; - char was_thread_connected = 0; - - // attach to java thread if not attached - int getEnvStat = (*jm->jvm)->GetEnv(jm->jvm, (void **) &(jm->jenv), - JNI_VERSION_1_8); - if (getEnvStat == JNI_EDETACHED) { - if ((*jm->jvm)->AttachCurrentThread(jm->jvm, (void **) &(jm->jenv), - NULL) != 0) { - clib_warning("Failed to attach thread\n"); - rm->control_ping_retval = - VNET_API_ERROR_FAILED_TO_ATTACH_TO_JAVA_THREAD; - goto out; - } - - // workaround as we can't use pthread_cleanup_push - pthread_key_create(&rm->cleanup_rx_thread_key, cleanup_rx_thread); - // destructor is only called if the value of key is non null - pthread_setspecific(rm->cleanup_rx_thread_key, (void *) 1); - was_thread_connected = 1; - } else if (getEnvStat == JNI_EVERSION) { - clib_warning("Unsupported JNI version\n"); - rm->control_ping_retval = VNET_API_ERROR_UNSUPPORTED_JNI_VERSION; - goto out; - } - - if (was_thread_connected == 0) { - JNIEnv *env = jm->jenv; - if (mp->retval < 0) { - call_on_error("controlPing", mp->context, mp->retval, - rm->registryClass, rm->registryObject, - rm->callbackExceptionClass); - } else { - jmethodID constructor = (*env)->GetMethodID(env, - rm->controlPingReplyClass, "<init>", "()V"); - jmethodID callbackMethod = (*env)->GetMethodID(env, - rm->registryClass, "onControlPingReply", - "(Lio/fd/vpp/jvpp/dto/ControlPingReply;)V"); - - jobject dto = (*env)->NewObject(env, rm->controlPingReplyClass, - constructor); - - jfieldID contextFieldId = (*env)->GetFieldID(env, - rm->controlPingReplyClass, "context", "I"); - (*env)->SetIntField(env, dto, contextFieldId, - clib_net_to_host_u32(mp->context)); - - jfieldID clientIndexFieldId = (*env)->GetFieldID(env, - rm->controlPingReplyClass, "clientIndex", "I"); - (*env)->SetIntField(env, dto, clientIndexFieldId, - clib_net_to_host_u32(mp->client_index)); - - jfieldID vpePidFieldId = (*env)->GetFieldID(env, - rm->controlPingReplyClass, "vpePid", "I"); - (*env)->SetIntField(env, dto, vpePidFieldId, - clib_net_to_host_u32(mp->vpe_pid)); - - (*env)->CallVoidMethod(env, rm->registryObject, callbackMethod, - dto); - (*env)->DeleteLocalRef(env, dto); - } - } - - out: rm->vpe_pid = clib_net_to_host_u32(mp->vpe_pid); - rm->control_ping_result_ready = 1; -} - -static int find_ping_id() { - int rv = 0; - jvpp_main_t * jm = &jvpp_main; - jvpp_registry_main_t * rm = &jvpp_registry_main; - api_main_t *am = &api_main; - hash_pair_t *hp; - jm->messages_hash = am->msg_index_by_name_and_crc; - - rm->control_ping_msg_id = -1; - rm->control_ping_reply_msg_id = -1; - - hash_foreach_pair (hp, jm->messages_hash, - ({ - char *key = (char *)hp->key; // key format: name_crc - int msg_name_len = strlen(key) - 9; // ignore crc - if (strlen(CONTROL_PING_MESSAGE) == msg_name_len && - strncmp(CONTROL_PING_MESSAGE, (char *)hp->key, msg_name_len) == 0) { - rm->control_ping_msg_id = (u32)hp->value[0]; - } - if (strlen(CONTROL_PING_REPLY_MESSAGE) == msg_name_len && - strncmp(CONTROL_PING_REPLY_MESSAGE, (char *)hp->key, msg_name_len) == 0) { - rm->control_ping_reply_msg_id = (u32)hp->value[0]; - } - })); - if (rm->control_ping_msg_id == -1) { - clib_warning("failed to find id for %s", CONTROL_PING_MESSAGE); - rv = -1; - } - if (rm->control_ping_reply_msg_id == -1) { - clib_warning("failed to find id for %s", CONTROL_PING_REPLY_MESSAGE); - rv = -1; - } - return rv; -} - -static int send_initial_control_ping() { - f64 timeout; - clib_time_t clib_time; - vl_api_control_ping_t * mp; - jvpp_main_t * jm = &jvpp_main; - jvpp_registry_main_t * rm = &jvpp_registry_main; - - clib_time_init(&clib_time); - - rm->control_ping_result_ready = 0; - mp = vl_msg_api_alloc(sizeof(*mp)); - memset(mp, 0, sizeof(*mp)); - mp->_vl_msg_id = ntohs(rm->control_ping_msg_id); - mp->client_index = jm->my_client_index; - - // send message: - vl_msg_api_send_shmem(jm->vl_input_queue, (u8 *) &mp); - - // wait for results: Current time + 10 seconds is the timeout - timeout = clib_time_now(&clib_time) + 10.0; - int rv = VNET_API_ERROR_RESPONSE_NOT_READY; - while (clib_time_now(&clib_time) < timeout) { - if (rm->control_ping_result_ready == 1) { - rv = rm->control_ping_retval; - break; - } - } - - if (rv != 0) { - vl_msg_api_clean_handlers(rm->control_ping_reply_msg_id); - clib_warning("first control ping failed: %d", rv); - } - return rv; -} - -#if USE_DLMALLOC == 1 -void * __jvpp_heap; -#endif - -static int connect_to_vpe(char *shm_prefix, char *name) { - jvpp_main_t * jm = &jvpp_main; - api_main_t * am = &api_main; - jvpp_registry_main_t * rm = &jvpp_registry_main; - -#if USE_DLMALLOC == 1 - __jvpp_heap = clib_mem_init (0, 1<<20); -#endif - - if (vl_client_connect_to_vlib(shm_prefix, name, 32) < 0) - return -1; - jm->my_client_index = am->my_client_index; - - jm->vl_input_queue = am->shmem_hdr->vl_input_queue; - - if (find_ping_id() < 0) - return -1; - - vl_msg_api_set_handlers(rm->control_ping_reply_msg_id, CONTROL_PING_REPLY_MESSAGE, - vl_api_control_ping_reply_t_handler, vl_noop_handler, - vl_api_control_ping_reply_t_endian, - vl_api_control_ping_reply_t_print, - sizeof(vl_api_control_ping_reply_t), 1); - - return send_initial_control_ping(); -} - -JNIEXPORT jobject JNICALL Java_io_fd_vpp_jvpp_VppJNIConnection_clientConnect( - JNIEnv *env, jclass obj, jstring shmPrefix, jstring clientName) { - /* - * TODO introducing memory prefix as variable can be used in hc2vpp - * to be able to run without root privileges - * https://jira.fd.io/browse/HC2VPP-176 - */ - int rv; - const char *client_name; - const char *shm_prefix; - void vl_msg_reply_handler_hookup(void); - jvpp_main_t * jm = &jvpp_main; - jvpp_registry_main_t * rm = &jvpp_registry_main; - - jclass connectionInfoClass = (*env)->FindClass(env, - "io/fd/vpp/jvpp/VppJNIConnection$ConnectionInfo"); - jmethodID connectionInfoConstructor = (*env)->GetMethodID(env, - connectionInfoClass, "<init>", "(JIII)V"); - - if (rm->is_connected) { - return (*env)->NewObject(env, connectionInfoClass, - connectionInfoConstructor, 0, 0, - VNET_API_ERROR_ALREADY_CONNECTED, 0); - } - - client_name = (*env)->GetStringUTFChars(env, clientName, 0); - shm_prefix = (*env)->GetStringUTFChars(env, shmPrefix, 0); - - if (!client_name) { - return (*env)->NewObject(env, connectionInfoClass, - connectionInfoConstructor, 0, 0, VNET_API_ERROR_INVALID_VALUE, 0, shmPrefix); - } - - if (!shm_prefix) { - return (*env)->NewObject(env, connectionInfoClass, - connectionInfoConstructor, 0, 0, VNET_API_ERROR_INVALID_VALUE, 0, shmPrefix); - } - - rv = connect_to_vpe((char *) shm_prefix, (char *) client_name); - - if (rv < 0) - clib_warning("connection failed, rv %d", rv); - - (*env)->ReleaseStringUTFChars(env, clientName, client_name); - (*env)->ReleaseStringUTFChars(env, shmPrefix, shm_prefix); - - return (*env)->NewObject(env, connectionInfoClass, - connectionInfoConstructor, (jlong) pointer_to_uword (jm->vl_input_queue), - (jint) jm->my_client_index, (jint) rv, (jint) rm->vpe_pid); -} - -JNIEXPORT jint JNICALL Java_io_fd_vpp_jvpp_JVppRegistryImpl_controlPing0( - JNIEnv *env, jobject regstryObject) { - jvpp_main_t * jm = &jvpp_main; - vl_api_control_ping_t * mp; - u32 my_context_id = vppjni_get_context_id(&jvpp_main); - jvpp_registry_main_t * rm = &jvpp_registry_main; - - if (rm->registryObject == 0) { - rm->registryObject = (*env)->NewGlobalRef(env, regstryObject); - } - if (rm->registryClass == 0) { - rm->registryClass = (jclass) (*env)->NewGlobalRef(env, - (*env)->GetObjectClass(env, regstryObject)); - } - - mp = vl_msg_api_alloc(sizeof(*mp)); - memset(mp, 0, sizeof(*mp)); - mp->_vl_msg_id = ntohs(rm->control_ping_msg_id); - mp->client_index = jm->my_client_index; - mp->context = clib_host_to_net_u32(my_context_id); - - // send message: - vl_msg_api_send_shmem(jm->vl_input_queue, (u8 *) &mp); - return my_context_id; -} - -JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_VppJNIConnection_clientDisconnect( - JNIEnv *env, jclass clazz) { - jvpp_registry_main_t * rm = &jvpp_registry_main; - rm->is_connected = 0; // TODO make thread safe - vl_client_disconnect_from_vlib(); - - // cleanup: - if (rm->registryObject) { - (*env)->DeleteGlobalRef(env, rm->registryObject); - rm->registryObject = 0; - } - if (rm->registryClass) { - (*env)->DeleteGlobalRef(env, rm->registryClass); - rm->registryClass = 0; - } -} - -jint JNI_OnLoad(JavaVM *vm, void *reserved) { - jvpp_main_t * jm = &jvpp_main; - jvpp_registry_main_t * rm = &jvpp_registry_main; - JNIEnv* env; - - if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) { - return JNI_EVERSION; - } - - rm->controlPingReplyClass = (jclass) (*env)->NewGlobalRef(env, - (*env)->FindClass(env, "io/fd/vpp/jvpp/dto/ControlPingReply")); - if ((*env)->ExceptionCheck(env)) { - (*env)->ExceptionDescribe(env); - clib_warning("Failed to cache class references\n"); - return JNI_ERR; - } - - rm->callbackExceptionClass = (jclass) (*env)->NewGlobalRef(env, - (*env)->FindClass(env, "io/fd/vpp/jvpp/VppCallbackException")); - if ((*env)->ExceptionCheck(env)) { - (*env)->ExceptionDescribe(env); - return JNI_ERR; - } - - jm->jvm = vm; - return JNI_VERSION_1_8; -} - -void JNI_OnUnload(JavaVM *vm, void *reserved) { - jvpp_main_t * jm = &jvpp_main; - JNIEnv* env; - if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) { - return; - } - - jm->jenv = NULL; - jm->jvm = NULL; -} |