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/*
* Copyright (c) 2019 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.
*/
/**
* This file contains JNI bindings for jvpp Java API.
*/
#include <jvpp-common/jvpp_common.h>
#include <vpp-api/client/stat_client.h>
// JAVA class reference cache
jclass interfaceStatisticsDumpClass;
jclass interfaceStatisticsClass;
jclass interfaceStatisticsDetailsClass;
jclass callbackExceptionClass;
typedef struct interface_statistics {
int context;
int sw_if_index;
int rx_errors;
int rx_bytes;
int rx_unicast_pkts;
int rx_broadcast_pkts;
int rx_multicast_pkts;
int tx_errors;
int tx_bytes;
int tx_unicast_pkts;
int tx_broadcast_pkts;
int tx_multicast_pkts;
} vl_api_interface_statistics_details_t;
static int cache_class_references(JNIEnv *env) {
interfaceStatisticsDumpClass = (jclass) (*env)->NewGlobalRef(env, (*env)->FindClass(env,
"io/fd/jvpp/stats/dto/InterfaceStatisticsDump"));
if ((*env)->ExceptionCheck(env)) {
(*env)->ExceptionDescribe(env);
return JNI_ERR;
}
interfaceStatisticsDetailsClass = (jclass) (*env)->NewGlobalRef(env, (*env)->FindClass(env,
"io/fd/jvpp/stats/dto/InterfaceStatisticsDetails"));
if ((*env)->ExceptionCheck(env)) {
(*env)->ExceptionDescribe(env);
return JNI_ERR;
}
interfaceStatisticsClass = (jclass) (*env)->NewGlobalRef(env, (*env)->FindClass(env,
"io/fd/jvpp/stats/dto/InterfaceStatistics"));
if ((*env)->ExceptionCheck(env)) {
(*env)->ExceptionDescribe(env);
return JNI_ERR;
}
callbackExceptionClass = (jclass) (*env)->NewGlobalRef(env,
(*env)->FindClass(env, "io/fd/jvpp/VppCallbackException"));
if ((*env)->ExceptionCheck(env)) {
(*env)->ExceptionDescribe(env);
return JNI_ERR;
}
return 0;
}
static void delete_class_references(JNIEnv *env) {
if (interfaceStatisticsDumpClass) {
(*env)->DeleteGlobalRef(env, interfaceStatisticsDumpClass);
}
if (interfaceStatisticsDetailsClass) {
(*env)->DeleteGlobalRef(env, interfaceStatisticsDetailsClass);
}
if (interfaceStatisticsClass) {
(*env)->DeleteGlobalRef(env, interfaceStatisticsClass);
}
if (callbackExceptionClass) {
(*env)->DeleteGlobalRef(env, callbackExceptionClass);
}
}
/**
* Handler for interface_statistics_details message.
*/
static void
interface_statistics_details_handler(JNIEnv *env, vl_api_interface_statistics_details_t *ifc_stats, int ifc_count) {
stats_main_t *plugin_main = &stats_main;
jthrowable exc;
if (CLIB_DEBUG > 1)
clib_warning ("Received interface_statistics_details event message");
jmethodID constructor = (*env)->GetMethodID(env, interfaceStatisticsDetailsClass, "<init>", "(II)V");
// User does not have to provide callbacks for all VPP messages.
// We are ignoring messages that are not supported by user.
(*env)->ExceptionClear(env); // just in case exception occurred in different place and was not properly cleared
jmethodID callbackMethod = (*env)->GetMethodID(env, plugin_main->callbackClass, "onInterfaceStatisticsDetails",
"(Lio/fd/jvpp/stats/dto/InterfaceStatisticsDetails;)V");
exc = (*env)->ExceptionOccurred(env);
if (exc) {
clib_warning(
"Unable to extract onInterfaceStatisticsDetails method reference from stats plugin's callbackClass. Ignoring message.\n");
(*env)->ExceptionDescribe(env);
(*env)->ExceptionClear(env);
return;
}
jobject dto = (*env)->NewObject(env, interfaceStatisticsDetailsClass, constructor, ifc_count, ifc_stats->context);
jfieldID interfaceStatisticsId = (*env)->GetFieldID(env, interfaceStatisticsDetailsClass, "interfaceStatistics",
"[Lio/fd/jvpp/stats/dto/InterfaceStatistics;");
jobject stats_array = (*env)->GetObjectField(env, dto, interfaceStatisticsId);
jmethodID ifc_stats_constructor = (*env)->GetMethodID(env, interfaceStatisticsClass, "<init>", "(IIIIIIIIIII)V");
for (int i = 0; i < ifc_count; i++) {
jobject element = (*env)->NewObject(env, interfaceStatisticsClass, ifc_stats_constructor,
ifc_stats[i].sw_if_index,
ifc_stats[i].tx_errors,
ifc_stats[i].tx_multicast_pkts,
ifc_stats[i].tx_unicast_pkts,
ifc_stats[i].tx_broadcast_pkts,
ifc_stats[i].tx_bytes,
ifc_stats[i].rx_errors,
ifc_stats[i].rx_multicast_pkts,
ifc_stats[i].rx_unicast_pkts,
ifc_stats[i].rx_broadcast_pkts,
ifc_stats[i].rx_bytes);
(*env)->SetObjectArrayElement(env, stats_array, i, element);
if ((*env)->ExceptionOccurred(env)) {
break;
}
(*env)->DeleteLocalRef(env, element);
}
(*env)->CallVoidMethod(env, plugin_main->callbackObject, callbackMethod, dto);
if ((*env)->ExceptionOccurred(env)) {
clib_warning("Unable to call callback for stats plugin's callbackClass.\n");
(*env)->ExceptionDescribe(env);
(*env)->ExceptionClear(env);
return;
}
(*env)->DeleteLocalRef(env, stats_array);
(*env)->DeleteLocalRef(env, dto);
}
static void
set_field(vl_api_interface_statistics_details_t *stats, int index, const char *field_name, int packets, int bytes) {
if (strcmp(field_name, "/if/rx-error") == 0) {
stats[index].rx_errors = packets;
} else if (strcmp(field_name, "/if/tx-error") == 0) {
stats[index].tx_errors = packets;
} else if (strcmp(field_name, "/if/tx") == 0) {
stats[index].tx_bytes = bytes;
} else if (strcmp(field_name, "/if/tx-multicast") == 0) {
stats[index].tx_multicast_pkts = packets;
} else if (strcmp(field_name, "/if/tx-unicast") == 0) {
stats[index].tx_unicast_pkts = packets;
} else if (strcmp(field_name, "/if/tx-broadcast") == 0) {
stats[index].tx_broadcast_pkts = packets;
} else if (strcmp(field_name, "/if/rx") == 0) {
stats[index].rx_bytes = bytes;
} else if (strcmp(field_name, "/if/rx-multicast") == 0) {
stats[index].rx_multicast_pkts = packets;
} else if (strcmp(field_name, "/if/rx-unicast") == 0) {
stats[index].rx_unicast_pkts = packets;
} else if (strcmp(field_name, "/if/rx-broadcast") == 0) {
stats[index].rx_broadcast_pkts = packets;
}
stats[index].sw_if_index = index;
}
static stat_segment_data_t *get_ifc_statistics_dump() {
u8 **patterns = 0;
u32 *dir;
vec_add1(patterns, (u8 *) "/if/rx");
vec_add1(patterns, (u8 *) "/if/tx");
dir = stat_segment_ls(patterns);
return stat_segment_dump(dir);
}
static jint getInterfaceStatisticsDump(JNIEnv *env) {
stat_segment_data_t *res;
int i, j, k, interface_count = 0;
u32 my_context_id = vppjni_get_context_id(&jvpp_main);
res = get_ifc_statistics_dump();
if (res == NULL) {
clib_warning("Interface Statistics dump failed.\n");
return -1;
}
if (vec_len (res) > 0) {
if ((res[0].simple_counter_vec != 0) && (vec_len (res[0].simple_counter_vec) > 0)) {
interface_count = vec_len (res[0].simple_counter_vec[0]);
} else if ((res[0].combined_counter_vec != 0) && (vec_len (res[0].combined_counter_vec) > 0)) {
interface_count = vec_len (res[0].combined_counter_vec[0]);
}
}
vl_api_interface_statistics_details_t ifc_stats[interface_count];
memset(ifc_stats, 0, interface_count * sizeof(vl_api_interface_statistics_details_t));
ifc_stats->context = my_context_id;
for (i = 0; i < vec_len (res); i++) {
switch (res[i].type) {
case STAT_DIR_TYPE_COUNTER_VECTOR_SIMPLE:
if (res[i].simple_counter_vec == 0)
continue;
for (k = 0; k < vec_len (res[i].simple_counter_vec); k++)
for (j = 0; j < vec_len (res[i].simple_counter_vec[k]); j++) {
set_field(ifc_stats, j, res[i].name, res[i].simple_counter_vec[k][j], 0);
}
break;
case STAT_DIR_TYPE_COUNTER_VECTOR_COMBINED:
if (res[i].combined_counter_vec == 0)
continue;
for (k = 0; k < vec_len (res[i].combined_counter_vec); k++)
for (j = 0; j < vec_len (res[i].combined_counter_vec[k]); j++) {
set_field(ifc_stats, j, res[i].name, res[i].combined_counter_vec[k][j].packets,
res[i].combined_counter_vec[k][j].bytes);
}
break;
default:;
}
}
stat_segment_data_free(res);
interface_statistics_details_handler(env, ifc_stats, interface_count);
return ifc_stats->context;
}
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