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colosseum-near-rt-ric/setup/e2/RIC-E2-TERMINATION/sctpThread.cpp

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2021-12-08 21:17:46 +01:00
// Copyright 2019 AT&T Intellectual Property
// Copyright 2019 Nokia
//
// 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 source code is part of the near-RT RIC (RAN Intelligent Controller)
// platform project (RICP).
// TODO: High-level file comment.
#include <3rdparty/oranE2/RANfunctions-List.h>
#include "sctpThread.h"
#include "BuildRunName.h"
#include "3rdparty/oranE2SM/E2SM-gNB-NRT-RANfunction-Definition.h"
#include "BuildXml.h"
#include "pugixml/src/pugixml.hpp"
// #include <string.h>
// #include <netinet/tcp.h>
// #include <arpa/inet.h>
// #include <sys/socket.h>
// #include <netinet/in.h>
// #include <unistd.h>
// #include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libgen.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netinet/sctp.h>
#include <arpa/inet.h>
#include <rapidjson/document.h>
#include <rapidjson/writer.h>
#include <rapidjson/stringbuffer.h>
#include <iostream>
using namespace std;
//using namespace std::placeholders;
using namespace boost::filesystem;
using namespace rapidjson;
//#ifdef __cplusplus
//extern "C"
//{
//#endif
int sendMessageSocket(const int dest_port);
int parseMessageData(ReportingMessages_t &message, char *data, char *host, uint16_t &port);
// need to expose without the include of gcov
extern "C" void __gcov_flush(void);
static void catch_function(int signal) {
__gcov_flush();
exit(signal);
}
BOOST_LOG_INLINE_GLOBAL_LOGGER_DEFAULT(my_logger, src::logger_mt)
boost::shared_ptr<sinks::synchronous_sink<sinks::text_file_backend>> boostLogger;
double cpuClock = 0.0;
bool jsonTrace = true;
void init_log() {
mdclog_attr_t *attr;
mdclog_attr_init(&attr);
mdclog_attr_set_ident(attr, "E2Terminator");
mdclog_init(attr);
mdclog_attr_destroy(attr);
}
auto start_time = std::chrono::high_resolution_clock::now();
typedef std::chrono::duration<double, std::ratio<1,1>> seconds_t;
double age() {
return seconds_t(std::chrono::high_resolution_clock::now() - start_time).count();
}
double approx_CPU_MHz(unsigned sleeptime) {
using namespace std::chrono_literals;
uint32_t aux = 0;
uint64_t cycles_start = rdtscp(aux);
double time_start = age();
std::this_thread::sleep_for(sleeptime * 1ms);
uint64_t elapsed_cycles = rdtscp(aux) - cycles_start;
double elapsed_time = age() - time_start;
return elapsed_cycles / elapsed_time;
}
//std::atomic<int64_t> rmrCounter{0};
std::atomic<int64_t> num_of_messages{0};
std::atomic<int64_t> num_of_XAPP_messages{0};
static long transactionCounter = 0;
int buildListeningPort(sctp_params_t &sctpParams) {
sctpParams.listenFD = socket (AF_INET6, SOCK_STREAM, IPPROTO_SCTP);
struct sockaddr_in6 servaddr {};
servaddr.sin6_family = AF_INET6;
servaddr.sin6_addr = in6addr_any;
servaddr.sin6_port = htons(sctpParams.sctpPort);
if (bind(sctpParams.listenFD, (SA *)&servaddr, sizeof(servaddr)) < 0 ) {
mdclog_write(MDCLOG_ERR, "Error binding. %s\n", strerror(errno));
return -1;
}
if (setSocketNoBlocking(sctpParams.listenFD) == -1) {
//mdclog_write(MDCLOG_ERR, "Error binding. %s", strerror(errno));
return -1;
}
if (mdclog_level_get() >= MDCLOG_DEBUG) {
struct sockaddr_in6 cliaddr {};
socklen_t len = sizeof(cliaddr);
getsockname(sctpParams.listenFD, (SA *)&cliaddr, &len);
char buff[1024] {};
inet_ntop(AF_INET6, &cliaddr.sin6_addr, buff, sizeof(buff));
mdclog_write(MDCLOG_DEBUG, "My address: %s, port %d\n", buff, htons(cliaddr.sin6_port));
}
if (listen(sctpParams.listenFD, SOMAXCONN) < 0) {
mdclog_write(MDCLOG_ERR, "Error listening. %s\n", strerror(errno));
return -1;
}
struct epoll_event event {};
event.events = EPOLLIN | EPOLLET;
event.data.fd = sctpParams.listenFD;
// add listening port to epoll
if (epoll_ctl(sctpParams.epoll_fd, EPOLL_CTL_ADD, sctpParams.listenFD, &event)) {
printf("Failed to add descriptor to epoll\n");
mdclog_write(MDCLOG_ERR, "Failed to add descriptor to epoll. %s\n", strerror(errno));
return -1;
}
return 0;
}
int buildConfiguration(sctp_params_t &sctpParams) {
path p = (sctpParams.configFilePath + "/" + sctpParams.configFileName).c_str();
if (exists(p)) {
const int size = 2048;
auto fileSize = file_size(p);
if (fileSize > size) {
mdclog_write(MDCLOG_ERR, "File %s larger than %d", p.string().c_str(), size);
return -1;
}
} else {
mdclog_write(MDCLOG_ERR, "Configuration File %s not exists", p.string().c_str());
return -1;
}
ReadConfigFile conf;
if (conf.openConfigFile(p.string()) == -1) {
mdclog_write(MDCLOG_ERR, "Filed to open config file %s, %s",
p.string().c_str(), strerror(errno));
return -1;
}
int rmrPort = conf.getIntValue("nano");
if (rmrPort == -1) {
mdclog_write(MDCLOG_ERR, "illigal RMR port ");
return -1;
}
sctpParams.rmrPort = (uint16_t)rmrPort;
snprintf(sctpParams.rmrAddress, sizeof(sctpParams.rmrAddress), "%d", (int) (sctpParams.rmrPort));
auto tmpStr = conf.getStringValue("loglevel");
if (tmpStr.length() == 0) {
mdclog_write(MDCLOG_ERR, "illigal loglevel. Set loglevel to MDCLOG_INFO");
tmpStr = "info";
}
transform(tmpStr.begin(), tmpStr.end(), tmpStr.begin(), ::tolower);
if ((tmpStr.compare("debug")) == 0) {
sctpParams.logLevel = MDCLOG_DEBUG;
} else if ((tmpStr.compare("info")) == 0) {
sctpParams.logLevel = MDCLOG_INFO;
} else if ((tmpStr.compare("warning")) == 0) {
sctpParams.logLevel = MDCLOG_WARN;
} else if ((tmpStr.compare("error")) == 0) {
sctpParams.logLevel = MDCLOG_ERR;
} else {
mdclog_write(MDCLOG_ERR, "illigal loglevel = %s. Set loglevel to MDCLOG_INFO", tmpStr.c_str());
sctpParams.logLevel = MDCLOG_INFO;
}
mdclog_level_set(sctpParams.logLevel);
tmpStr = conf.getStringValue("volume");
if (tmpStr.length() == 0) {
mdclog_write(MDCLOG_ERR, "illigal volume.");
return -1;
}
char tmpLogFilespec[VOLUME_URL_SIZE];
tmpLogFilespec[0] = 0;
sctpParams.volume[0] = 0;
snprintf(sctpParams.volume, VOLUME_URL_SIZE, "%s", tmpStr.c_str());
// copy the name to temp file as well
snprintf(tmpLogFilespec, VOLUME_URL_SIZE, "%s", tmpStr.c_str());
// define the file name in the tmp directory under the volume
strcat(tmpLogFilespec,"/tmp/E2Term_%Y-%m-%d_%H-%M-%S.%N.tmpStr");
sctpParams.myIP = conf.getStringValue("local-ip");
if (sctpParams.myIP.length() == 0) {
mdclog_write(MDCLOG_ERR, "illigal local-ip.");
return -1;
}
int sctpPort = conf.getIntValue("sctp-port");
if (sctpPort == -1) {
mdclog_write(MDCLOG_ERR, "illigal SCTP port ");
return -1;
}
sctpParams.sctpPort = (uint16_t)sctpPort;
sctpParams.fqdn = conf.getStringValue("external-fqdn");
if (sctpParams.fqdn.length() == 0) {
mdclog_write(MDCLOG_ERR, "illigal external-fqdn");
return -1;
}
std::string pod = conf.getStringValue("pod_name");
if (pod.length() == 0) {
mdclog_write(MDCLOG_ERR, "illigal pod_name in config file");
return -1;
}
auto *podName = getenv(pod.c_str());
if (podName == nullptr) {
mdclog_write(MDCLOG_ERR, "illigal pod_name or environment varible not exists : %s", pod.c_str());
return -1;
} else {
sctpParams.podName.assign(podName);
if (sctpParams.podName.length() == 0) {
mdclog_write(MDCLOG_ERR, "illigal pod_name");
return -1;
}
}
tmpStr = conf.getStringValue("trace");
transform(tmpStr.begin(), tmpStr.end(), tmpStr.begin(), ::tolower);
if ((tmpStr.compare("start")) == 0) {
mdclog_write(MDCLOG_INFO, "Trace set to: start");
sctpParams.trace = true;
} else if ((tmpStr.compare("stop")) == 0) {
mdclog_write(MDCLOG_INFO, "Trace set to: stop");
sctpParams.trace = false;
}
jsonTrace = sctpParams.trace;
sctpParams.ka_message_length = snprintf(sctpParams.ka_message, KA_MESSAGE_SIZE, "{\"address\": \"%s:%d\","
"\"fqdn\": \"%s\","
"\"pod_name\": \"%s\"}",
(const char *)sctpParams.myIP.c_str(),
sctpParams.rmrPort,
sctpParams.fqdn.c_str(),
sctpParams.podName.c_str());
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_mdc_add("RMR Port", to_string(sctpParams.rmrPort).c_str());
mdclog_mdc_add("LogLevel", to_string(sctpParams.logLevel).c_str());
mdclog_mdc_add("volume", sctpParams.volume);
mdclog_mdc_add("tmpLogFilespec", tmpLogFilespec);
mdclog_mdc_add("my ip", sctpParams.myIP.c_str());
mdclog_mdc_add("pod name", sctpParams.podName.c_str());
mdclog_write(MDCLOG_INFO, "running parameters for instance : %s", sctpParams.ka_message);
}
mdclog_mdc_clean();
// Files written to the current working directory
boostLogger = logging::add_file_log(
keywords::file_name = tmpLogFilespec, // to temp directory
keywords::rotation_size = 10 * 1024 * 1024,
keywords::time_based_rotation = sinks::file::rotation_at_time_interval(posix_time::hours(1)),
keywords::format = "%Message%"
//keywords::format = "[%TimeStamp%]: %Message%" // use each tmpStr with time stamp
);
// Setup a destination folder for collecting rotated (closed) files --since the same volumn can use rename()
boostLogger->locked_backend()->set_file_collector(sinks::file::make_collector(
keywords::target = sctpParams.volume
));
// Upon restart, scan the directory for files matching the file_name pattern
boostLogger->locked_backend()->scan_for_files();
// Enable auto-flushing after each tmpStr record written
if (mdclog_level_get() >= MDCLOG_DEBUG) {
boostLogger->locked_backend()->auto_flush(true);
}
return 0;
}
int main(const int argc, const char **argv) {
sctp_params_t sctpParams;
{
std::random_device device{};
std::mt19937 generator(device());
std::uniform_int_distribution<long> distribution(1, (long) 1e12);
transactionCounter = distribution(generator);
}
// uint64_t st = 0;
// uint32_t aux1 = 0;
// st = rdtscp(aux1);
unsigned num_cpus = std::thread::hardware_concurrency();
init_log();
mdclog_level_set(MDCLOG_INFO);
if (std::signal(SIGINT, catch_function) == SIG_ERR) {
mdclog_write(MDCLOG_ERR, "Error initializing SIGINT");
exit(1);
}
if (std::signal(SIGABRT, catch_function)== SIG_ERR) {
mdclog_write(MDCLOG_ERR, "Error initializing SIGABRT");
exit(1);
}
if (std::signal(SIGTERM, catch_function)== SIG_ERR) {
mdclog_write(MDCLOG_ERR, "Error initializing SIGTERM");
exit(1);
}
cpuClock = approx_CPU_MHz(100);
mdclog_write(MDCLOG_DEBUG, "CPU speed %11.11f", cpuClock);
auto result = parse(argc, argv, sctpParams);
if (buildConfiguration(sctpParams) != 0) {
exit(-1);
}
// start epoll
sctpParams.epoll_fd = epoll_create1(0);
if (sctpParams.epoll_fd == -1) {
mdclog_write(MDCLOG_ERR, "failed to open epoll descriptor");
exit(-1);
}
getRmrContext(sctpParams);
if (sctpParams.rmrCtx == nullptr) {
close(sctpParams.epoll_fd);
exit(-1);
}
if (buildInotify(sctpParams) == -1) {
close(sctpParams.rmrListenFd);
rmr_close(sctpParams.rmrCtx);
close(sctpParams.epoll_fd);
exit(-1);
}
if (buildListeningPort(sctpParams) != 0) {
close(sctpParams.rmrListenFd);
rmr_close(sctpParams.rmrCtx);
close(sctpParams.epoll_fd);
exit(-1);
}
sctpParams.sctpMap = new mapWrapper();
std::vector<std::thread> threads(num_cpus);
// std::vector<std::thread> threads;
num_cpus = 1;
for (unsigned int i = 0; i < num_cpus; i++) {
threads[i] = std::thread(listener, &sctpParams);
cpu_set_t cpuset;
CPU_ZERO(&cpuset);
CPU_SET(i, &cpuset);
int rc = pthread_setaffinity_np(threads[i].native_handle(), sizeof(cpu_set_t), &cpuset);
if (rc != 0) {
mdclog_write(MDCLOG_ERR, "Error calling pthread_setaffinity_np: %d", rc);
}
}
auto statFlag = false;
auto statThread = std::thread(statColectorThread, (void *)&statFlag);
//loop over term_init until first message from xApp
handleTermInit(sctpParams);
for (auto &t : threads) {
t.join();
}
statFlag = true;
statThread.join();
return 0;
}
void handleTermInit(sctp_params_t &sctpParams) {
sendTermInit(sctpParams);
//send to e2 manager init of e2 term
//E2_TERM_INIT
int count = 0;
while (true) {
auto xappMessages = num_of_XAPP_messages.load(std::memory_order_acquire);
if (xappMessages > 0) {
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "Got a message from some appliction, stop sending E2_TERM_INIT");
}
return;
}
usleep(100000);
count++;
if (count % 1000 == 0) {
mdclog_write(MDCLOG_ERR, "GOT No messages from any xApp");
sendTermInit(sctpParams);
}
}
}
void sendTermInit(sctp_params_t &sctpParams) {
rmr_mbuf_t *msg = rmr_alloc_msg(sctpParams.rmrCtx, sctpParams.ka_message_length);
auto count = 0;
while (true) {
msg->mtype = E2_TERM_INIT;
msg->state = 0;
rmr_bytes2payload(msg, (unsigned char *)sctpParams.ka_message, sctpParams.ka_message_length);
static unsigned char tx[32];
auto txLen = snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(msg, tx, txLen);
msg = rmr_send_msg(sctpParams.rmrCtx, msg);
if (msg == nullptr) {
msg = rmr_alloc_msg(sctpParams.rmrCtx, sctpParams.ka_message_length);
} else if (msg->state == 0) {
rmr_free_msg(msg);
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "E2_TERM_INIT succsesfuly sent ");
}
return;
} else {
if (count % 100 == 0) {
mdclog_write(MDCLOG_ERR, "Error sending E2_TERM_INIT cause : %s ", translateRmrErrorMessages(msg->state).c_str());
}
sleep(1);
}
count++;
}
}
/**
*
* @param argc
* @param argv
* @param sctpParams
* @return
*/
cxxopts::ParseResult parse(int argc, const char *argv[], sctp_params_t &sctpParams) {
cxxopts::Options options(argv[0], "e2 term help");
options.positional_help("[optional args]").show_positional_help();
options.allow_unrecognised_options().add_options()
("p,path", "config file path", cxxopts::value<std::string>(sctpParams.configFilePath)->default_value("config"))
("f,file", "config file name", cxxopts::value<std::string>(sctpParams.configFileName)->default_value("config.conf"))
("h,help", "Print help");
auto result = options.parse(argc, argv);
if (result.count("help")) {
std::cout << options.help({""}) << std::endl;
exit(0);
}
return result;
}
/**
*
* @param sctpParams
* @return -1 failed 0 success
*/
int buildInotify(sctp_params_t &sctpParams) {
sctpParams.inotifyFD = inotify_init1(IN_NONBLOCK);
if (sctpParams.inotifyFD == -1) {
mdclog_write(MDCLOG_ERR, "Failed to init inotify (inotify_init1) %s", strerror(errno));
close(sctpParams.rmrListenFd);
rmr_close(sctpParams.rmrCtx);
close(sctpParams.epoll_fd);
return -1;
}
sctpParams.inotifyWD = inotify_add_watch(sctpParams.inotifyFD,
(const char *)sctpParams.configFilePath.c_str(),
(unsigned)IN_OPEN | (unsigned)IN_CLOSE_WRITE | (unsigned)IN_CLOSE_NOWRITE); //IN_CLOSE = (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)
if (sctpParams.inotifyWD == -1) {
mdclog_write(MDCLOG_ERR, "Failed to add directory : %s to inotify (inotify_add_watch) %s",
sctpParams.configFilePath.c_str(),
strerror(errno));
close(sctpParams.inotifyFD);
return -1;
}
struct epoll_event event{};
event.events = (EPOLLIN);
event.data.fd = sctpParams.inotifyFD;
// add listening RMR FD to epoll
if (epoll_ctl(sctpParams.epoll_fd, EPOLL_CTL_ADD, sctpParams.inotifyFD, &event)) {
mdclog_write(MDCLOG_ERR, "Failed to add inotify FD to epoll");
close(sctpParams.inotifyFD);
return -1;
}
return 0;
}
/**
*
* @param args
* @return
*/
void listener(sctp_params_t *params) {
int num_of_SCTP_messages = 0;
auto totalTime = 0.0;
mdclog_mdc_clean();
mdclog_level_set(params->logLevel);
std::thread::id this_id = std::this_thread::get_id();
//save cout
streambuf *oldCout = cout.rdbuf();
ostringstream memCout;
// create new cout
cout.rdbuf(memCout.rdbuf());
cout << this_id;
//return to the normal cout
cout.rdbuf(oldCout);
char tid[32];
memcpy(tid, memCout.str().c_str(), memCout.str().length() < 32 ? memCout.str().length() : 31);
tid[memCout.str().length()] = 0;
mdclog_mdc_add("thread id", tid);
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "started thread number %s", tid);
}
RmrMessagesBuffer_t rmrMessageBuffer{};
//create and init RMR
rmrMessageBuffer.rmrCtx = params->rmrCtx;
auto *events = (struct epoll_event *) calloc(MAXEVENTS, sizeof(struct epoll_event));
struct timespec end{0, 0};
struct timespec start{0, 0};
rmrMessageBuffer.rcvMessage = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, RECEIVE_XAPP_BUFFER_SIZE);
rmrMessageBuffer.sendMessage = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, RECEIVE_XAPP_BUFFER_SIZE);
memcpy(rmrMessageBuffer.ka_message, params->ka_message, params->ka_message_length);
rmrMessageBuffer.ka_message_len = params->ka_message_length;
rmrMessageBuffer.ka_message[rmrMessageBuffer.ka_message_len] = 0;
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "keep alive message is : %s", rmrMessageBuffer.ka_message);
}
ReportingMessages_t message {};
// for (int i = 0; i < MAX_RMR_BUFF_ARRY; i++) {
// rmrMessageBuffer.rcvBufferedMessages[i] = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, RECEIVE_XAPP_BUFFER_SIZE);
// rmrMessageBuffer.sendBufferedMessages[i] = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, RECEIVE_XAPP_BUFFER_SIZE);
// }
message.statCollector = StatCollector::GetInstance();
while (true) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Start EPOLL Wait");
}
auto numOfEvents = epoll_wait(params->epoll_fd, events, MAXEVENTS, -1);
if (numOfEvents < 0 && errno == EINTR) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "got EINTR : %s", strerror(errno));
}
continue;
}
if (numOfEvents < 0) {
mdclog_write(MDCLOG_ERR, "Epoll wait failed, errno = %s", strerror(errno));
return;
}
for (auto i = 0; i < numOfEvents; i++) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "handling epoll event %d out of %d", i + 1, numOfEvents);
}
clock_gettime(CLOCK_MONOTONIC, &message.message.time);
start.tv_sec = message.message.time.tv_sec;
start.tv_nsec = message.message.time.tv_nsec;
if ((events[i].events & EPOLLERR) || (events[i].events & EPOLLHUP)) {
handlepoll_error(events[i], message, rmrMessageBuffer, params);
} else if (events[i].events & EPOLLOUT) {
handleEinprogressMessages(events[i], message, rmrMessageBuffer, params);
} else if (params->listenFD == events[i].data.fd) {
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "New connection request from sctp network\n");
}
// new connection is requested from RAN start build connection
while (true) {
struct sockaddr in_addr {};
socklen_t in_len;
char hostBuff[NI_MAXHOST];
char portBuff[NI_MAXSERV];
in_len = sizeof(in_addr);
auto *peerInfo = (ConnectedCU_t *)calloc(1, sizeof(ConnectedCU_t));
peerInfo->sctpParams = params;
peerInfo->fileDescriptor = accept(params->listenFD, &in_addr, &in_len);
if (peerInfo->fileDescriptor == -1) {
if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) {
/* We have processed all incoming connections. */
break;
} else {
mdclog_write(MDCLOG_ERR, "Accept error, errno = %s", strerror(errno));
break;
}
}
if (setSocketNoBlocking(peerInfo->fileDescriptor) == -1) {
mdclog_write(MDCLOG_ERR, "setSocketNoBlocking failed to set new connection %s on port %s\n", hostBuff, portBuff);
close(peerInfo->fileDescriptor);
break;
}
auto ans = getnameinfo(&in_addr, in_len,
peerInfo->hostName, NI_MAXHOST,
peerInfo->portNumber, NI_MAXSERV, (unsigned )((unsigned int)NI_NUMERICHOST | (unsigned int)NI_NUMERICSERV));
if (ans < 0) {
mdclog_write(MDCLOG_ERR, "Failed to get info on connection request. %s\n", strerror(errno));
close(peerInfo->fileDescriptor);
break;
}
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Accepted connection on descriptor %d (host=%s, port=%s)\n", peerInfo->fileDescriptor, peerInfo->hostName, peerInfo->portNumber);
}
peerInfo->isConnected = false;
peerInfo->gotSetup = false;
if (addToEpoll(params->epoll_fd,
peerInfo,
(EPOLLIN | EPOLLET),
params->sctpMap, nullptr,
0) != 0) {
break;
}
break;
}
} else if (params->rmrListenFd == events[i].data.fd) {
// got message from XAPP
num_of_XAPP_messages.fetch_add(1, std::memory_order_release);
num_of_messages.fetch_add(1, std::memory_order_release);
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "new message from RMR");
}
if (receiveXappMessages(params->sctpMap,
rmrMessageBuffer,
message.message.time) != 0) {
mdclog_write(MDCLOG_ERR, "Error handling Xapp message");
}
} else if (params->inotifyFD == events[i].data.fd) {
mdclog_write(MDCLOG_INFO, "Got event from inotify (configuration update)");
handleConfigChange(params);
} else {
/* We RMR_ERR_RETRY have data on the fd waiting to be read. Read and display it.
* We must read whatever data is available completely, as we are running
* in edge-triggered mode and won't get a notification again for the same data. */
num_of_messages.fetch_add(1, std::memory_order_release);
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "new message from SCTP, epoll flags are : %0x", events[i].events);
}
receiveDataFromSctp(&events[i],
params->sctpMap,
num_of_SCTP_messages,
rmrMessageBuffer,
message.message.time);
}
clock_gettime(CLOCK_MONOTONIC, &end);
if (mdclog_level_get() >= MDCLOG_INFO) {
totalTime += ((end.tv_sec + 1.0e-9 * end.tv_nsec) -
((double) start.tv_sec + 1.0e-9 * start.tv_nsec));
}
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "message handling is %ld seconds %ld nanoseconds",
end.tv_sec - start.tv_sec,
end.tv_nsec - start.tv_nsec);
}
}
}
}
/**
*
* @param sctpParams
*/
void handleConfigChange(sctp_params_t *sctpParams) {
char buf[4096] __attribute__ ((aligned(__alignof__(struct inotify_event))));
const struct inotify_event *event;
char *ptr;
path p = (sctpParams->configFilePath + "/" + sctpParams->configFileName).c_str();
auto endlessLoop = true;
while (endlessLoop) {
auto len = read(sctpParams->inotifyFD, buf, sizeof buf);
if (len == -1) {
if (errno != EAGAIN) {
mdclog_write(MDCLOG_ERR, "read %s ", strerror(errno));
endlessLoop = false;
continue;
}
else {
endlessLoop = false;
continue;
}
}
for (ptr = buf; ptr < buf + len; ptr += sizeof(struct inotify_event) + event->len) {
event = (const struct inotify_event *)ptr;
if (event->mask & (uint32_t)IN_ISDIR) {
continue;
}
// the directory name
if (sctpParams->inotifyWD == event->wd) {
// not the directory
}
if (event->len) {
auto retVal = strcmp(sctpParams->configFileName.c_str(), event->name);
if (retVal != 0) {
continue;
}
}
// only the file we want
if (event->mask & (uint32_t)IN_CLOSE_WRITE) {
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "Configuration file changed");
}
if (exists(p)) {
const int size = 2048;
auto fileSize = file_size(p);
if (fileSize > size) {
mdclog_write(MDCLOG_ERR, "File %s larger than %d", p.string().c_str(), size);
return;
}
} else {
mdclog_write(MDCLOG_ERR, "Configuration File %s not exists", p.string().c_str());
return;
}
ReadConfigFile conf;
if (conf.openConfigFile(p.string()) == -1) {
mdclog_write(MDCLOG_ERR, "Filed to open config file %s, %s",
p.string().c_str(), strerror(errno));
return;
}
auto tmpStr = conf.getStringValue("loglevel");
if (tmpStr.length() == 0) {
mdclog_write(MDCLOG_ERR, "illigal loglevel. Set loglevel to MDCLOG_INFO");
tmpStr = "info";
}
transform(tmpStr.begin(), tmpStr.end(), tmpStr.begin(), ::tolower);
if ((tmpStr.compare("debug")) == 0) {
mdclog_write(MDCLOG_INFO, "Log level set to MDCLOG_DEBUG");
sctpParams->logLevel = MDCLOG_DEBUG;
} else if ((tmpStr.compare("info")) == 0) {
mdclog_write(MDCLOG_INFO, "Log level set to MDCLOG_INFO");
sctpParams->logLevel = MDCLOG_INFO;
} else if ((tmpStr.compare("warning")) == 0) {
mdclog_write(MDCLOG_INFO, "Log level set to MDCLOG_WARN");
sctpParams->logLevel = MDCLOG_WARN;
} else if ((tmpStr.compare("error")) == 0) {
mdclog_write(MDCLOG_INFO, "Log level set to MDCLOG_ERR");
sctpParams->logLevel = MDCLOG_ERR;
} else {
mdclog_write(MDCLOG_ERR, "illigal loglevel = %s. Set loglevel to MDCLOG_INFO", tmpStr.c_str());
sctpParams->logLevel = MDCLOG_INFO;
}
mdclog_level_set(sctpParams->logLevel);
tmpStr = conf.getStringValue("trace");
if (tmpStr.length() == 0) {
mdclog_write(MDCLOG_ERR, "illigal trace. Set trace to stop");
tmpStr = "stop";
}
transform(tmpStr.begin(), tmpStr.end(), tmpStr.begin(), ::tolower);
if ((tmpStr.compare("start")) == 0) {
mdclog_write(MDCLOG_INFO, "Trace set to: start");
sctpParams->trace = true;
} else if ((tmpStr.compare("stop")) == 0) {
mdclog_write(MDCLOG_INFO, "Trace set to: stop");
sctpParams->trace = false;
} else {
mdclog_write(MDCLOG_ERR, "Trace was set to wrong value %s, set to stop", tmpStr.c_str());
sctpParams->trace = false;
}
jsonTrace = sctpParams->trace;
endlessLoop = false;
}
}
}
}
/**
*
* @param event
* @param message
* @param rmrMessageBuffer
* @param params
*/
void handleEinprogressMessages(struct epoll_event &event,
ReportingMessages_t &message,
RmrMessagesBuffer_t &rmrMessageBuffer,
sctp_params_t *params) {
auto *peerInfo = (ConnectedCU_t *)event.data.ptr;
memcpy(message.message.enodbName, peerInfo->enodbName, sizeof(peerInfo->enodbName));
mdclog_write(MDCLOG_INFO, "file descriptor %d got EPOLLOUT", peerInfo->fileDescriptor);
auto retVal = 0;
socklen_t retValLen = 0;
auto rc = getsockopt(peerInfo->fileDescriptor, SOL_SOCKET, SO_ERROR, &retVal, &retValLen);
if (rc != 0 || retVal != 0) {
if (rc != 0) {
rmrMessageBuffer.sendMessage->len = snprintf((char *)rmrMessageBuffer.sendMessage->payload, 256,
"%s|Failed SCTP Connection, after EINPROGRESS the getsockopt%s",
peerInfo->enodbName, strerror(errno));
} else if (retVal != 0) {
rmrMessageBuffer.sendMessage->len = snprintf((char *)rmrMessageBuffer.sendMessage->payload, 256,
"%s|Failed SCTP Connection after EINPROGRESS, SO_ERROR",
peerInfo->enodbName);
}
message.message.asndata = rmrMessageBuffer.sendMessage->payload;
message.message.asnLength = rmrMessageBuffer.sendMessage->len;
mdclog_write(MDCLOG_ERR, "%s", rmrMessageBuffer.sendMessage->payload);
message.message.direction = 'N';
if (sendRequestToXapp(message, RIC_SCTP_CONNECTION_FAILURE, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "SCTP_CONNECTION_FAIL message failed to send to xAPP");
}
memset(peerInfo->asnData, 0, peerInfo->asnLength);
peerInfo->asnLength = 0;
peerInfo->mtype = 0;
return;
}
peerInfo->isConnected = true;
if (modifyToEpoll(params->epoll_fd, peerInfo, (EPOLLIN | EPOLLET), params->sctpMap, peerInfo->enodbName,
peerInfo->mtype) != 0) {
mdclog_write(MDCLOG_ERR, "epoll_ctl EPOLL_CTL_MOD");
return;
}
message.message.asndata = (unsigned char *)peerInfo->asnData;
message.message.asnLength = peerInfo->asnLength;
message.message.messageType = peerInfo->mtype;
memcpy(message.message.enodbName, peerInfo->enodbName, sizeof(peerInfo->enodbName));
num_of_messages.fetch_add(1, std::memory_order_release);
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "send the delayed SETUP/ENDC SETUP to sctp for %s",
message.message.enodbName);
}
if (sendSctpMsg(peerInfo, message, params->sctpMap) != 0) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Error write to SCTP %s %d", __func__, __LINE__);
}
return;
}
memset(peerInfo->asnData, 0, peerInfo->asnLength);
peerInfo->asnLength = 0;
peerInfo->mtype = 0;
}
void handlepoll_error(struct epoll_event &event,
ReportingMessages_t &message,
RmrMessagesBuffer_t &rmrMessageBuffer,
sctp_params_t *params) {
if (event.data.fd != params->rmrListenFd) {
auto *peerInfo = (ConnectedCU_t *)event.data.ptr;
mdclog_write(MDCLOG_ERR, "epoll error, events %0x on fd %d, RAN NAME : %s",
event.events, peerInfo->fileDescriptor, peerInfo->enodbName);
rmrMessageBuffer.sendMessage->len = snprintf((char *)rmrMessageBuffer.sendMessage->payload, 256,
"%s|Failed SCTP Connection",
peerInfo->enodbName);
message.message.asndata = rmrMessageBuffer.sendMessage->payload;
message.message.asnLength = rmrMessageBuffer.sendMessage->len;
memcpy(message.message.enodbName, peerInfo->enodbName, sizeof(peerInfo->enodbName));
message.message.direction = 'N';
if (sendRequestToXapp(message, RIC_SCTP_CONNECTION_FAILURE, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "SCTP_CONNECTION_FAIL message failed to send to xAPP");
}
close(peerInfo->fileDescriptor);
params->sctpMap->erase(peerInfo->enodbName);
cleanHashEntry((ConnectedCU_t *) event.data.ptr, params->sctpMap);
} else {
mdclog_write(MDCLOG_ERR, "epoll error, events %0x on RMR FD", event.events);
}
}
/**
*
* @param socket
* @return
*/
int setSocketNoBlocking(int socket) {
auto flags = fcntl(socket, F_GETFL, 0);
if (flags == -1) {
mdclog_mdc_add("func", "fcntl");
mdclog_write(MDCLOG_ERR, "%s, %s", __FUNCTION__, strerror(errno));
mdclog_mdc_clean();
return -1;
}
flags = (unsigned) flags | (unsigned) O_NONBLOCK;
if (fcntl(socket, F_SETFL, flags) == -1) {
mdclog_mdc_add("func", "fcntl");
mdclog_write(MDCLOG_ERR, "%s, %s", __FUNCTION__, strerror(errno));
mdclog_mdc_clean();
return -1;
}
return 0;
}
/**
*
* @param val
* @param m
*/
void cleanHashEntry(ConnectedCU_t *val, Sctp_Map_t *m) {
char *dummy;
auto port = (uint16_t) strtol(val->portNumber, &dummy, 10);
char searchBuff[2048]{};
snprintf(searchBuff, sizeof searchBuff, "host:%s:%d", val->hostName, port);
m->erase(searchBuff);
m->erase(val->enodbName);
free(val);
}
/**
*
* @param fd file discriptor
* @param data the asn data to send
* @param len length of the data
* @param enodbName the enodbName as in the map for printing purpose
* @param m map host information
* @param mtype message number
* @return 0 success, anegative number on fail
*/
int sendSctpMsg(ConnectedCU_t *peerInfo, ReportingMessages_t &message, Sctp_Map_t *m) {
auto loglevel = mdclog_level_get();
int fd = peerInfo->fileDescriptor;
if (loglevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Send SCTP message for CU %s, %s",
message.message.enodbName, __FUNCTION__);
}
while (true) {
if (send(fd,message.message.asndata, message.message.asnLength,MSG_NOSIGNAL) < 0) {
if (errno == EINTR) {
continue;
}
mdclog_write(MDCLOG_ERR, "error writing to CU a message, %s ", strerror(errno));
if (!peerInfo->isConnected) {
mdclog_write(MDCLOG_ERR, "connection to CU %s is still in progress.", message.message.enodbName);
return -1;
}
cleanHashEntry(peerInfo, m);
close(fd);
char key[MAX_ENODB_NAME_SIZE * 2];
snprintf(key, MAX_ENODB_NAME_SIZE * 2, "msg:%s|%d", message.message.enodbName,
message.message.messageType);
if (loglevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "remove key = %s from %s at line %d", key, __FUNCTION__, __LINE__);
}
auto tmp = m->find(key);
if (tmp) {
free(tmp);
}
m->erase(key);
return -1;
}
// TODO remove stat update
//message.statCollector->incSentMessage(string(message.message.enodbName));
message.message.direction = 'D';
// send report.buffer of size
buildJsonMessage(message);
if (loglevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG,
"SCTP message for CU %s sent from %s",
message.message.enodbName,
__FUNCTION__);
}
return 0;
}
}
/**
*
* @param message
* @param rmrMessageBuffer
*/
void getRequestMetaData(ReportingMessages_t &message, RmrMessagesBuffer_t &rmrMessageBuffer) {
rmr_get_meid(rmrMessageBuffer.rcvMessage, (unsigned char *) (message.message.enodbName));
message.message.asndata = rmrMessageBuffer.rcvMessage->payload;
message.message.asnLength = rmrMessageBuffer.rcvMessage->len;
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Message from Xapp RAN name = %s message length = %ld",
message.message.enodbName, (unsigned long) message.message.asnLength);
}
}
/**
* 09/11/2020 - Leo: parse json message
*
* @param metaData all the data strip to structure
* @param data the data recived from xAPP
* @return 0 success all other values are fault
*/
int parseMessageData(ReportingMessages_t &message, char *data, char *host, uint16_t &port) {
auto loglevel = mdclog_level_get();
Document document;
document.Parse(data);
const char* ran_ip;
if (document.HasMember("ranIp")) {
ran_ip = document["ranIp"].GetString();
std::cout << "ranIP: " << ran_ip << ", length: " << strlen(ran_ip) << std::endl;
memcpy(host, ran_ip, strlen(ran_ip));
}
else {
mdclog_write(MDCLOG_ERR, "ranIp not provided");
return -1;
}
int ran_port;
if (document.HasMember("ranPort")) {
ran_port = document["ranPort"].GetInt();
std::cout << "ranPort: " << ran_port << std::endl;
port = (uint16_t) ran_port;
}
else {
mdclog_write(MDCLOG_ERR, "ranPort not provided");
return -2;
}
const char* ran_name;
if (document.HasMember("ranName")) {
ran_name = document["ranName"].GetString();
std::cout << "ranName: " << ran_name << ", length: " << strlen(ran_name) << std::endl;
memcpy(message.message.enodbName, ran_name, strlen(ran_name));
}
else {
mdclog_write(MDCLOG_ERR, "ranName not provided");
return -3;
}
const char* message_payload;
if (document.HasMember("payload")) {
message_payload = document["payload"].GetString();
std::cout << "payload: " << message_payload << ", length: " << strlen(message_payload) << std::endl;
message.message.asndata = (unsigned char *) message_payload;
std::cout << "message.message.asndata: " << message.message.asndata << std::endl;
message.message.asnLength = (uint16_t) strlen(message_payload);
std::cout << "message.message.asnLength: " << message.message.asnLength << std::endl;
}
else {
mdclog_write(MDCLOG_ERR, "Payload not provided");
return -4;
}
std::cout << "Step 1" << std::endl;
// val = strtok_r(nullptr, delimiter, &tmp);
// if (val != nullptr) {
// mdclog_write(MDCLOG_DEBUG, "ASN length parameter from message = %s", val);
// if (mdclog_level_get() >= MDCLOG_DEBUG) {
// mdclog_write(MDCLOG_DEBUG, "ASN length parameter from message = %s", val);
// }
// char *dummy;
// message.message.asnLength = (uint16_t) strtol(val, &dummy, 10);
// } else {
// mdclog_write(MDCLOG_ERR, "wrong ASN length for setup request %s", data);
// return -4;
// }
//
// message.message.asndata = (unsigned char *)tmp; // tmp is local but point to the location in data
if (loglevel >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "Message from Xapp RAN name = %s host address = %s port = %d",
message.message.enodbName, host, port);
}
std::cout << "Step 2" << std::endl;
return 0;
}
/**
*
* @param events
* @param sctpMap
* @param numOfMessages
* @param rmrMessageBuffer
* @param ts
* @return
*/
int receiveDataFromSctp(struct epoll_event *events,
Sctp_Map_t *sctpMap,
int &numOfMessages,
RmrMessagesBuffer_t &rmrMessageBuffer,
struct timespec &ts) {
/* We have data on the fd waiting to be read. Read and display it.
* We must read whatever data is available completely, as we are running
* in edge-triggered mode and won't get a notification again for the same data. */
ReportingMessages_t message {};
auto done = 0;
auto loglevel = mdclog_level_get();
// get the identity of the interface
message.peerInfo = (ConnectedCU_t *)events->data.ptr;
message.statCollector = StatCollector::GetInstance();
struct timespec start{0, 0};
struct timespec decodestart{0, 0};
struct timespec end{0, 0};
E2AP_PDU_t *pdu = nullptr;
while (true) {
if (loglevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Start Read from SCTP %d fd", message.peerInfo->fileDescriptor);
clock_gettime(CLOCK_MONOTONIC, &start);
}
// read the buffer directly to rmr payload
message.message.asndata = rmrMessageBuffer.sendMessage->payload;
message.message.asnLength = rmrMessageBuffer.sendMessage->len =
read(message.peerInfo->fileDescriptor, rmrMessageBuffer.sendMessage->payload, RECEIVE_SCTP_BUFFER_SIZE);
if (loglevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Finish Read from SCTP %d fd message length = %ld",
message.peerInfo->fileDescriptor, message.message.asnLength);
}
memcpy(message.message.enodbName, message.peerInfo->enodbName, sizeof(message.peerInfo->enodbName));
message.statCollector->incRecvMessage(string(message.message.enodbName));
message.message.direction = 'U';
message.message.time.tv_nsec = ts.tv_nsec;
message.message.time.tv_sec = ts.tv_sec;
if (message.message.asnLength < 0) {
if (errno == EINTR) {
continue;
}
/* If errno == EAGAIN, that means we have read all
data. So goReportingMessages_t back to the main loop. */
if (errno != EAGAIN) {
mdclog_write(MDCLOG_ERR, "Read error, %s ", strerror(errno));
done = 1;
} else if (loglevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "EAGAIN - descriptor = %d", message.peerInfo->fileDescriptor);
}
break;
} else if (message.message.asnLength == 0) {
/* End of file. The remote has closed the connection. */
if (loglevel >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "END of File Closed connection - descriptor = %d",
message.peerInfo->fileDescriptor);
}
done = 1;
break;
}
if (loglevel >= MDCLOG_DEBUG) {
char printBuffer[4096]{};
char *tmp = printBuffer;
for (size_t i = 0; i < (size_t)message.message.asnLength; ++i) {
snprintf(tmp, 3, "%02x", message.message.asndata[i]);
tmp += 2;
}
printBuffer[message.message.asnLength] = 0;
clock_gettime(CLOCK_MONOTONIC, &end);
mdclog_write(MDCLOG_DEBUG, "Before Encoding E2AP PDU for : %s, Read time is : %ld seconds, %ld nanoseconds",
message.peerInfo->enodbName, end.tv_sec - start.tv_sec, end.tv_nsec - start.tv_nsec);
mdclog_write(MDCLOG_DEBUG, "PDU buffer length = %ld, data = : %s", message.message.asnLength,
printBuffer);
clock_gettime(CLOCK_MONOTONIC, &decodestart);
}
auto rval = asn_decode(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, (void **) &pdu,
message.message.asndata, message.message.asnLength);
if (rval.code != RC_OK) {
mdclog_write(MDCLOG_ERR, "Error %d Decoding (unpack) E2AP PDU from RAN : %s", rval.code,
message.peerInfo->enodbName);
//todo may need reset to pdu
break;
}
if (loglevel >= MDCLOG_DEBUG) {
clock_gettime(CLOCK_MONOTONIC, &end);
mdclog_write(MDCLOG_DEBUG, "After Encoding E2AP PDU for : %s, Read time is : %ld seconds, %ld nanoseconds",
message.peerInfo->enodbName, end.tv_sec - decodestart.tv_sec, end.tv_nsec - decodestart.tv_nsec);
char *printBuffer;
size_t size;
FILE *stream = open_memstream(&printBuffer, &size);
asn_fprint(stream, &asn_DEF_E2AP_PDU, pdu);
mdclog_write(MDCLOG_DEBUG, "Encoding E2AP PDU past : %s", printBuffer);
clock_gettime(CLOCK_MONOTONIC, &decodestart);
}
switch (pdu->present) {
case E2AP_PDU_PR_initiatingMessage: {//initiating message
asnInitiatingRequest(pdu, sctpMap,message, rmrMessageBuffer);
break;
}
case E2AP_PDU_PR_successfulOutcome: { //successful outcome
asnSuccsesfulMsg(pdu, sctpMap, message, rmrMessageBuffer);
break;
}
case E2AP_PDU_PR_unsuccessfulOutcome: { //Unsuccessful Outcome
asnUnSuccsesfulMsg(pdu, sctpMap, message, rmrMessageBuffer);
break;
}
default:
mdclog_write(MDCLOG_ERR, "Unknown index %d in E2AP PDU", pdu->present);
break;
}
if (loglevel >= MDCLOG_DEBUG) {
clock_gettime(CLOCK_MONOTONIC, &end);
mdclog_write(MDCLOG_DEBUG,
"After processing message and sent to rmr for : %s, Read time is : %ld seconds, %ld nanoseconds",
message.peerInfo->enodbName, end.tv_sec - decodestart.tv_sec, end.tv_nsec - decodestart.tv_nsec);
}
numOfMessages++;
if (pdu != nullptr) {
ASN_STRUCT_RESET(asn_DEF_E2AP_PDU, pdu);
//ASN_STRUCT_FREE(asn_DEF_E2AP_PDU, pdu);
//pdu = nullptr;
}
}
if (done) {
if (loglevel >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "Closed connection - descriptor = %d", message.peerInfo->fileDescriptor);
}
message.message.asnLength = rmrMessageBuffer.sendMessage->len =
snprintf((char *)rmrMessageBuffer.sendMessage->payload,
256,
"%s|CU disconnected unexpectedly",
message.peerInfo->enodbName);
message.message.asndata = rmrMessageBuffer.sendMessage->payload;
if (sendRequestToXapp(message,
RIC_SCTP_CONNECTION_FAILURE,
rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "SCTP_CONNECTION_FAIL message failed to send to xAPP");
}
/* Closing descriptor make epoll remove it from the set of descriptors which are monitored. */
close(message.peerInfo->fileDescriptor);
cleanHashEntry((ConnectedCU_t *) events->data.ptr, sctpMap);
}
if (loglevel >= MDCLOG_DEBUG) {
clock_gettime(CLOCK_MONOTONIC, &end);
mdclog_write(MDCLOG_DEBUG, "from receive SCTP to send RMR time is %ld seconds and %ld nanoseconds",
end.tv_sec - start.tv_sec, end.tv_nsec - start.tv_nsec);
}
return 0;
}
static void buildAndsendSetupRequest(ReportingMessages_t &message,
RmrMessagesBuffer_t &rmrMessageBuffer,
E2AP_PDU_t *pdu,
vector<string> &repValues) {
auto logLevel = mdclog_level_get();
// now we can send the data to e2Mgr
auto buffer_size = RECEIVE_SCTP_BUFFER_SIZE * 2;
unsigned char buffer[RECEIVE_SCTP_BUFFER_SIZE * 2];
auto *rmrMsg = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, buffer_size);
// encode to xml
auto er = asn_encode_to_buffer(nullptr, ATS_BASIC_XER, &asn_DEF_E2AP_PDU, pdu, buffer, buffer_size);
if (er.encoded == -1) {
mdclog_write(MDCLOG_ERR, "encoding of %s failed, %s", asn_DEF_E2AP_PDU.name, strerror(errno));
} else if (er.encoded > (ssize_t) buffer_size) {
mdclog_write(MDCLOG_ERR, "Buffer of size %d is to small for %s, at %s line %d",
(int) buffer_size,
asn_DEF_E2AP_PDU.name, __func__, __LINE__);
} else {
string messageType("E2setupRequest");
string ieName("E2setupRequestIEs");
buffer[er.encoded] = '\0';
buildXmlData(messageType, ieName, repValues, buffer, (size_t)er.encoded);
// string xmlStr = (char *)buffer;
// auto removeSpaces = [] (string str) -> string {
// str.erase(remove(str.begin(), str.end(), ' '), str.end());
// str.erase(remove(str.begin(), str.end(), '\t'), str.end());
// return str;
// };
//
// xmlStr = removeSpaces(xmlStr);
// // we have the XML
// rmrMsg->len = snprintf((char *)rmrMsg->payload, RECEIVE_SCTP_BUFFER_SIZE * 2, "%s:%d|%s",
// message.peerInfo->sctpParams->myIP.c_str(),
// message.peerInfo->sctpParams->rmrPort,
// xmlStr.c_str());
rmrMsg->len = snprintf((char *)rmrMsg->payload, RECEIVE_SCTP_BUFFER_SIZE * 2, "%s:%d|%s",
message.peerInfo->sctpParams->myIP.c_str(),
message.peerInfo->sctpParams->rmrPort,
buffer);
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Setup request of size %d :\n %s\n", rmrMsg->len, rmrMsg->payload);
}
// send to RMR
message.message.messageType = rmrMsg->mtype = RIC_E2_SETUP_REQ;
rmrMsg->state = 0;
rmr_bytes2meid(rmrMsg, (unsigned char *) message.message.enodbName, strlen(message.message.enodbName));
static unsigned char tx[32];
snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(rmrMsg, tx, strlen((const char *) tx));
rmrMsg = rmr_send_msg(rmrMessageBuffer.rmrCtx, rmrMsg);
if (rmrMsg == nullptr) {
mdclog_write(MDCLOG_ERR, "RMR failed to send returned nullptr");
} else if (rmrMsg->state != 0) {
char meid[RMR_MAX_MEID]{};
if (rmrMsg->state == RMR_ERR_RETRY) {
usleep(5);
rmrMsg->state = 0;
mdclog_write(MDCLOG_INFO, "RETRY sending Message %d to Xapp from %s",
rmrMsg->mtype, rmr_get_meid(rmrMsg, (unsigned char *) meid));
rmrMsg = rmr_send_msg(rmrMessageBuffer.rmrCtx, rmrMsg);
if (rmrMsg == nullptr) {
mdclog_write(MDCLOG_ERR, "RMR failed send returned nullptr");
} else if (rmrMsg->state != 0) {
mdclog_write(MDCLOG_ERR,
"RMR Retry failed %s sending request %d to Xapp from %s",
translateRmrErrorMessages(rmrMsg->state).c_str(),
rmrMsg->mtype,
rmr_get_meid(rmrMsg, (unsigned char *) meid));
}
} else {
mdclog_write(MDCLOG_ERR, "RMR failed: %s. sending request %d to Xapp from %s",
translateRmrErrorMessages(rmrMsg->state).c_str(),
rmrMsg->mtype,
rmr_get_meid(rmrMsg, (unsigned char *) meid));
}
}
message.peerInfo->gotSetup = true;
buildJsonMessage(message);
if (rmrMsg != nullptr) {
rmr_free_msg(rmrMsg);
}
}
}
int RAN_Function_list_To_Vector(RANfunctions_List_t& list, vector <string> &runFunXML_v) {
auto index = 0;
runFunXML_v.clear();
for (auto j = 0; j < list.list.count; j++) {
auto *raNfunctionItemIEs = (RANfunction_ItemIEs_t *)list.list.array[j];
if (raNfunctionItemIEs->id == ProtocolIE_ID_id_RANfunction_Item &&
(raNfunctionItemIEs->value.present == RANfunction_ItemIEs__value_PR_RANfunction_Item)) {
// encode to xml
E2SM_gNB_NRT_RANfunction_Definition_t *ranFunDef = nullptr;
auto rval = asn_decode(nullptr, ATS_ALIGNED_BASIC_PER,
&asn_DEF_E2SM_gNB_NRT_RANfunction_Definition,
(void **)&ranFunDef,
raNfunctionItemIEs->value.choice.RANfunction_Item.ranFunctionDefinition.buf,
raNfunctionItemIEs->value.choice.RANfunction_Item.ranFunctionDefinition.size);
if (rval.code != RC_OK) {
mdclog_write(MDCLOG_ERR, "Error %d Decoding (unpack) E2SM message from : %s",
rval.code,
asn_DEF_E2SM_gNB_NRT_RANfunction_Definition.name);
return -1;
}
// if (mdclog_level_get() >= MDCLOG_DEBUG) {
// char *printBuffer;
// size_t size;
// FILE *stream = open_memstream(&printBuffer, &size);
// asn_fprint(stream, &asn_DEF_E2SM_gNB_NRT_RANfunction_Definition, ranFunDef);
// mdclog_write(MDCLOG_DEBUG, "Encoding E2SM %s PDU past : %s",
// asn_DEF_E2SM_gNB_NRT_RANfunction_Definition.name,
// printBuffer);
// }
auto xml_buffer_size = RECEIVE_SCTP_BUFFER_SIZE * 2;
unsigned char xml_buffer[RECEIVE_SCTP_BUFFER_SIZE * 2];
// encode to xml
auto er = asn_encode_to_buffer(nullptr,
ATS_BASIC_XER,
&asn_DEF_E2SM_gNB_NRT_RANfunction_Definition,
ranFunDef,
xml_buffer,
xml_buffer_size);
if (er.encoded == -1) {
mdclog_write(MDCLOG_ERR, "encoding of %s failed, %s",
asn_DEF_E2SM_gNB_NRT_RANfunction_Definition.name,
strerror(errno));
} else if (er.encoded > (ssize_t)xml_buffer_size) {
mdclog_write(MDCLOG_ERR, "Buffer of size %d is to small for %s, at %s line %d",
(int) xml_buffer_size,
asn_DEF_E2SM_gNB_NRT_RANfunction_Definition.name, __func__, __LINE__);
} else {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Encoding E2SM %s PDU number %d : %s",
asn_DEF_E2SM_gNB_NRT_RANfunction_Definition.name,
index++,
xml_buffer);
}
string runFuncs = (char *)(xml_buffer);
runFunXML_v.emplace_back(runFuncs);
}
}
}
return 0;
}
int collectSetupAndServiceUpdate_RequestData(E2AP_PDU_t *pdu,
Sctp_Map_t *sctpMap,
ReportingMessages_t &message,
vector <string> &RANfunctionsAdded_v,
vector <string> &RANfunctionsModified_v) {
memset(message.peerInfo->enodbName, 0 , MAX_ENODB_NAME_SIZE);
for (auto i = 0; i < pdu->choice.initiatingMessage->value.choice.E2setupRequest.protocolIEs.list.count; i++) {
auto *ie = pdu->choice.initiatingMessage->value.choice.E2setupRequest.protocolIEs.list.array[i];
if (ie->id == ProtocolIE_ID_id_GlobalE2node_ID) {
// get the ran name for meid
if (ie->value.present == E2setupRequestIEs__value_PR_GlobalE2node_ID) {
if (buildRanName(message.peerInfo->enodbName, ie) < 0) {
mdclog_write(MDCLOG_ERR, "Bad param in E2setupRequestIEs GlobalE2node_ID.\n");
// no mesage will be sent
return -1;
}
memcpy(message.message.enodbName, message.peerInfo->enodbName, strlen(message.peerInfo->enodbName));
sctpMap->setkey(message.message.enodbName, message.peerInfo);
}
} else if (ie->id == ProtocolIE_ID_id_RANfunctionsAdded) {
if (ie->value.present == E2setupRequestIEs__value_PR_RANfunctions_List) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Run function list have %d entries",
ie->value.choice.RANfunctions_List.list.count);
}
if (RAN_Function_list_To_Vector(ie->value.choice.RANfunctions_List, RANfunctionsAdded_v) != 0 ) {
return -1;
}
}
} else if (ie->id == ProtocolIE_ID_id_RANfunctionsModified) {
if (ie->value.present == E2setupRequestIEs__value_PR_RANfunctions_List) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Run function list have %d entries",
ie->value.choice.RANfunctions_List.list.count);
}
if (RAN_Function_list_To_Vector(ie->value.choice.RANfunctions_List, RANfunctionsModified_v) != 0 ) {
return -1;
}
}
}
}
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Run function vector have %ld entries",
RANfunctionsAdded_v.size());
}
return 0;
}
/**
*
* @param pdu
* @param message
* @param rmrMessageBuffer
*/
void asnInitiatingRequest(E2AP_PDU_t *pdu,
Sctp_Map_t *sctpMap,
ReportingMessages_t &message,
RmrMessagesBuffer_t &rmrMessageBuffer) {
auto logLevel = mdclog_level_get();
auto procedureCode = ((InitiatingMessage_t *) pdu->choice.initiatingMessage)->procedureCode;
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Initiating message %ld\n", procedureCode);
}
switch (procedureCode) {
case ProcedureCode_id_E2setup: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got E2setup");
}
// first get the message as XML buffer
auto setup_xml_buffer_size = RECEIVE_SCTP_BUFFER_SIZE * 2;
unsigned char setup_xml_buffer[RECEIVE_SCTP_BUFFER_SIZE * 2];
auto er = asn_encode_to_buffer(nullptr, ATS_BASIC_XER, &asn_DEF_E2AP_PDU, pdu, setup_xml_buffer, setup_xml_buffer_size);
if (er.encoded == -1) {
mdclog_write(MDCLOG_ERR, "encoding of %s failed, %s", asn_DEF_E2AP_PDU.name, strerror(errno));
break;
} else if (er.encoded > (ssize_t) setup_xml_buffer_size) {
mdclog_write(MDCLOG_ERR, "Buffer of size %d is to small for %s, at %s line %d",
(int)setup_xml_buffer_size,
asn_DEF_E2AP_PDU.name, __func__, __LINE__);
break;
}
std::string xmlString(setup_xml_buffer_size, setup_xml_buffer_size + er.encoded);
vector <string> RANfunctionsAdded_v;
vector <string> RANfunctionsModified_v;
RANfunctionsAdded_v.clear();
RANfunctionsModified_v.clear();
if (collectSetupAndServiceUpdate_RequestData(pdu, sctpMap, message,
RANfunctionsAdded_v, RANfunctionsModified_v) != 0) {
break;
}
buildAndsendSetupRequest(message, rmrMessageBuffer, pdu, RANfunctionsAdded_v);
break;
}
case ProcedureCode_id_RICserviceUpdate: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICserviceUpdate %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_SERVICE_UPDATE, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_SERVICE_UPDATE message failed to send to xAPP");
}
break;
}
case ProcedureCode_id_ErrorIndication: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got ErrorIndication %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_ERROR_INDICATION, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_ERROR_INDICATION failed to send to xAPP");
}
break;
}
case ProcedureCode_id_Reset: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got Reset %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_X2_RESET, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_X2_RESET message failed to send to xAPP");
}
break;
}
case ProcedureCode_id_RICcontrol: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICcontrol %s", message.message.enodbName);
}
break;
}
case ProcedureCode_id_RICindication: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICindication - initiating %s", message.message.enodbName);
}
for (auto i = 0; i < pdu->choice.initiatingMessage->value.choice.RICindication.protocolIEs.list.count; i++) {
auto messageSent = false;
RICindication_IEs_t *ie = pdu->choice.initiatingMessage->value.choice.RICindication.protocolIEs.list.array[i];
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->id == ProtocolIE_ID_id_RICrequestID) {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RIC requestId entry, ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->value.present == RICindication_IEs__value_PR_RICrequestID) {
static unsigned char tx[32];
message.message.messageType = rmrMessageBuffer.sendMessage->mtype = RIC_INDICATION;
snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(rmrMessageBuffer.sendMessage, tx, strlen((const char *) tx));
int exit_status = rmr_bytes2meid(rmrMessageBuffer.sendMessage,
(unsigned char *)message.message.enodbName,
strlen(message.message.enodbName));
rmrMessageBuffer.sendMessage->state = 0;
// set sub_id to ricRequestorID for future lookup in rmr routing table.
// it was set to ricInstanceID before
rmrMessageBuffer.sendMessage->sub_id = ie->value.choice.RICrequestID.ricRequestorID;
// rmrMessageBuffer.sendMessage->sub_id = (int)ie->value.choice.RICrequestID.ricInstanceID;
unsigned char *me_id;
unsigned char* me_id_ptr = rmr_get_meid(rmrMessageBuffer.sendMessage, me_id);
mdclog_write(MDCLOG_DEBUG, "Received MEID: %s, exit_status %d, ptr %s", me_id, exit_status, me_id_ptr);
//ie->value.choice.RICrequestID.ricInstanceID;
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "sub id = %d, mtype = %d, ric instance id %ld, requestor id = %ld",
rmrMessageBuffer.sendMessage->sub_id,
rmrMessageBuffer.sendMessage->mtype,
ie->value.choice.RICrequestID.ricInstanceID,
ie->value.choice.RICrequestID.ricRequestorID);
}
sendRmrMessage(rmrMessageBuffer, message);
messageSent = true;
} else {
mdclog_write(MDCLOG_ERR, "RIC request id missing illigal request");
}
}
if (messageSent) {
break;
}
}
break;
}
case ProcedureCode_id_RICserviceQuery: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICserviceQuery %s", message.message.enodbName);
}
break;
}
case ProcedureCode_id_RICsubscription: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICsubscription %s", message.message.enodbName);
}
break;
}
case ProcedureCode_id_RICsubscriptionDelete: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICsubscriptionDelete %s", message.message.enodbName);
}
break;
}
default: {
mdclog_write(MDCLOG_ERR, "Undefined or not supported message = %ld", procedureCode);
message.message.messageType = 0; // no RMR message type yet
buildJsonMessage(message);
break;
}
}
}
/**
*
* @param pdu
* @param message
* @param rmrMessageBuffer
*/
void asnSuccsesfulMsg(E2AP_PDU_t *pdu,
Sctp_Map_t *sctpMap,
ReportingMessages_t &message,
RmrMessagesBuffer_t &rmrMessageBuffer) {
auto procedureCode = pdu->choice.successfulOutcome->procedureCode;
auto logLevel = mdclog_level_get();
if (logLevel >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "Successful Outcome %ld", procedureCode);
}
switch (procedureCode) {
case ProcedureCode_id_E2setup: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got E2setup\n");
}
break;
}
case ProcedureCode_id_ErrorIndication: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got ErrorIndication %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_ERROR_INDICATION, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_ERROR_INDICATION failed to send to xAPP");
}
break;
}
case ProcedureCode_id_Reset: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got Reset %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_X2_RESET, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_X2_RESET message failed to send to xAPP");
}
break;
}
case ProcedureCode_id_RICcontrol: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICcontrol %s", message.message.enodbName);
}
for (auto i = 0;
i < pdu->choice.successfulOutcome->value.choice.RICcontrolAcknowledge.protocolIEs.list.count; i++) {
auto messageSent = false;
RICcontrolAcknowledge_IEs_t *ie = pdu->choice.successfulOutcome->value.choice.RICcontrolAcknowledge.protocolIEs.list.array[i];
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->id == ProtocolIE_ID_id_RICrequestID) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RIC requestId entry, ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->value.present == RICcontrolAcknowledge_IEs__value_PR_RICrequestID) {
message.message.messageType = rmrMessageBuffer.sendMessage->mtype = RIC_CONTROL_ACK;
rmrMessageBuffer.sendMessage->state = 0;
// rmrMessageBuffer.sendMessage->sub_id = (int) ie->value.choice.RICrequestID.ricRequestorID;
rmrMessageBuffer.sendMessage->sub_id = (int)ie->value.choice.RICrequestID.ricInstanceID;
static unsigned char tx[32];
snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(rmrMessageBuffer.sendMessage, tx, strlen((const char *) tx));
rmr_bytes2meid(rmrMessageBuffer.sendMessage,
(unsigned char *)message.message.enodbName,
strlen(message.message.enodbName));
sendRmrMessage(rmrMessageBuffer, message);
messageSent = true;
} else {
mdclog_write(MDCLOG_ERR, "RIC request id missing illigal request");
}
}
if (messageSent) {
break;
}
}
break;
}
case ProcedureCode_id_RICindication: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICindication %s", message.message.enodbName);
}
for (auto i = 0; i < pdu->choice.initiatingMessage->value.choice.RICindication.protocolIEs.list.count; i++) {
auto messageSent = false;
RICindication_IEs_t *ie = pdu->choice.initiatingMessage->value.choice.RICindication.protocolIEs.list.array[i];
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->id == ProtocolIE_ID_id_RICrequestID) {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RIC requestId entry, ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->value.present == RICindication_IEs__value_PR_RICrequestID) {
static unsigned char tx[32];
message.message.messageType = rmrMessageBuffer.sendMessage->mtype = RIC_INDICATION;
snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(rmrMessageBuffer.sendMessage, tx, strlen((const char *) tx));
rmr_bytes2meid(rmrMessageBuffer.sendMessage,
(unsigned char *)message.message.enodbName,
strlen(message.message.enodbName));
rmrMessageBuffer.sendMessage->state = 0;
rmrMessageBuffer.sendMessage->sub_id = (int)ie->value.choice.RICrequestID.ricInstanceID;
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "RIC sub id = %d, message type = %d",
rmrMessageBuffer.sendMessage->sub_id,
rmrMessageBuffer.sendMessage->mtype);
}
sendRmrMessage(rmrMessageBuffer, message);
messageSent = true;
} else {
mdclog_write(MDCLOG_ERR, "RIC request id missing illigal request");
}
}
if (messageSent) {
break;
}
}
break;
}
case ProcedureCode_id_RICserviceQuery: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICserviceQuery %s", message.message.enodbName);
}
break;
}
case ProcedureCode_id_RICserviceUpdate: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICserviceUpdate %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_SERVICE_UPDATE, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_SERVICE_UPDATE message failed to send to xAPP");
}
break;
}
case ProcedureCode_id_RICsubscription: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICsubscription %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_SUB_RESP, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "Subscription successful message failed to send to xAPP");
}
break;
}
case ProcedureCode_id_RICsubscriptionDelete: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICsubscriptionDelete %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_SUB_DEL_RESP, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "Subscription delete successful message failed to send to xAPP");
}
break;
}
default: {
mdclog_write(MDCLOG_WARN, "Undefined or not supported message = %ld", procedureCode);
message.message.messageType = 0; // no RMR message type yet
buildJsonMessage(message);
break;
}
}
}
/**
*
* @param pdu
* @param message
* @param rmrMessageBuffer
*/
void asnUnSuccsesfulMsg(E2AP_PDU_t *pdu,
Sctp_Map_t *sctpMap,
ReportingMessages_t &message,
RmrMessagesBuffer_t &rmrMessageBuffer) {
auto procedureCode = pdu->choice.unsuccessfulOutcome->procedureCode;
auto logLevel = mdclog_level_get();
if (logLevel >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "Unsuccessful Outcome %ld", procedureCode);
}
switch (procedureCode) {
case ProcedureCode_id_E2setup: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got E2setup\n");
}
break;
}
case ProcedureCode_id_ErrorIndication: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got ErrorIndication %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_ERROR_INDICATION, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_ERROR_INDICATION failed to send to xAPP");
}
break;
}
case ProcedureCode_id_Reset: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got Reset %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_X2_RESET, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_X2_RESET message failed to send to xAPP");
}
break;
}
case ProcedureCode_id_RICcontrol: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICcontrol %s", message.message.enodbName);
}
for (int i = 0;
i < pdu->choice.unsuccessfulOutcome->value.choice.RICcontrolFailure.protocolIEs.list.count; i++) {
auto messageSent = false;
RICcontrolFailure_IEs_t *ie = pdu->choice.unsuccessfulOutcome->value.choice.RICcontrolFailure.protocolIEs.list.array[i];
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->id == ProtocolIE_ID_id_RICrequestID) {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RIC requestId entry, ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->value.present == RICcontrolFailure_IEs__value_PR_RICrequestID) {
message.message.messageType = rmrMessageBuffer.sendMessage->mtype = RIC_CONTROL_FAILURE;
rmrMessageBuffer.sendMessage->state = 0;
// rmrMessageBuffer.sendMessage->sub_id = (int)ie->value.choice.RICrequestID.ricRequestorID;
rmrMessageBuffer.sendMessage->sub_id = (int)ie->value.choice.RICrequestID.ricInstanceID;
static unsigned char tx[32];
snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(rmrMessageBuffer.sendMessage, tx, strlen((const char *) tx));
rmr_bytes2meid(rmrMessageBuffer.sendMessage, (unsigned char *) message.message.enodbName,
strlen(message.message.enodbName));
sendRmrMessage(rmrMessageBuffer, message);
messageSent = true;
} else {
mdclog_write(MDCLOG_ERR, "RIC request id missing illigal request");
}
}
if (messageSent) {
break;
}
}
break;
}
case ProcedureCode_id_RICindication: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICindication %s", message.message.enodbName);
}
for (auto i = 0; i < pdu->choice.initiatingMessage->value.choice.RICindication.protocolIEs.list.count; i++) {
auto messageSent = false;
RICindication_IEs_t *ie = pdu->choice.initiatingMessage->value.choice.RICindication.protocolIEs.list.array[i];
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->id == ProtocolIE_ID_id_RICrequestID) {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RIC requestId entry, ie type (ProtocolIE_ID) = %ld", ie->id);
}
if (ie->value.present == RICindication_IEs__value_PR_RICrequestID) {
static unsigned char tx[32];
message.message.messageType = rmrMessageBuffer.sendMessage->mtype = RIC_INDICATION;
snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(rmrMessageBuffer.sendMessage, tx, strlen((const char *) tx));
rmr_bytes2meid(rmrMessageBuffer.sendMessage,
(unsigned char *)message.message.enodbName,
strlen(message.message.enodbName));
rmrMessageBuffer.sendMessage->state = 0;
// rmrMessageBuffer.sendMessage->sub_id = (int)ie->value.choice.RICrequestID.ricRequestorID;
rmrMessageBuffer.sendMessage->sub_id = (int)ie->value.choice.RICrequestID.ricInstanceID;
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "RIC sub id = %d, message type = %d",
rmrMessageBuffer.sendMessage->sub_id,
rmrMessageBuffer.sendMessage->mtype);
}
sendRmrMessage(rmrMessageBuffer, message);
messageSent = true;
} else {
mdclog_write(MDCLOG_ERR, "RIC request id missing illigal request");
}
}
if (messageSent) {
break;
}
}
break;
}
case ProcedureCode_id_RICserviceQuery: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICserviceQuery %s", message.message.enodbName);
}
break;
}
case ProcedureCode_id_RICserviceUpdate: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICserviceUpdate %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_SERVICE_UPDATE, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "RIC_SERVICE_UPDATE message failed to send to xAPP");
}
break;
}
case ProcedureCode_id_RICsubscription: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICsubscription %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_SUB_FAILURE, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "Subscription unsuccessful message failed to send to xAPP");
}
break;
}
case ProcedureCode_id_RICsubscriptionDelete: {
if (logLevel >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got RICsubscriptionDelete %s", message.message.enodbName);
}
if (sendRequestToXapp(message, RIC_SUB_DEL_FAILURE, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "Subscription Delete unsuccessful message failed to send to xAPP");
}
break;
}
default: {
mdclog_write(MDCLOG_WARN, "Undefined or not supported message = %ld", procedureCode);
message.message.messageType = 0; // no RMR message type yet
buildJsonMessage(message);
break;
}
}
}
/**
*
* @param message
* @param requestId
* @param rmrMmessageBuffer
* @return
*/
int sendRequestToXapp(ReportingMessages_t &message,
int requestId,
RmrMessagesBuffer_t &rmrMmessageBuffer) {
rmr_bytes2meid(rmrMmessageBuffer.sendMessage,
(unsigned char *)message.message.enodbName,
strlen(message.message.enodbName));
message.message.messageType = rmrMmessageBuffer.sendMessage->mtype = requestId;
rmrMmessageBuffer.sendMessage->state = 0;
static unsigned char tx[32];
snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(rmrMmessageBuffer.sendMessage, tx, strlen((const char *) tx));
auto rc = sendRmrMessage(rmrMmessageBuffer, message);
return rc;
}
void getRmrContext(sctp_params_t &pSctpParams) {
pSctpParams.rmrCtx = nullptr;
pSctpParams.rmrCtx = rmr_init(pSctpParams.rmrAddress, RECEIVE_XAPP_BUFFER_SIZE, RMRFL_NONE);
if (pSctpParams.rmrCtx == nullptr) {
mdclog_write(MDCLOG_ERR, "Failed to initialize RMR");
return;
}
rmr_set_stimeout(pSctpParams.rmrCtx, 0); // disable retries for any send operation
// we need to find that routing table exist and we can run
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "We are after RMR INIT wait for RMR_Ready");
}
int rmrReady = 0;
int count = 0;
while (!rmrReady) {
if ((rmrReady = rmr_ready(pSctpParams.rmrCtx)) == 0) {
sleep(1);
}
count++;
if (count % 60 == 0) {
mdclog_write(MDCLOG_INFO, "waiting to RMR ready state for %d seconds", count);
}
}
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "RMR running");
}
rmr_init_trace(pSctpParams.rmrCtx, 200);
// get the RMR fd for the epoll
pSctpParams.rmrListenFd = rmr_get_rcvfd(pSctpParams.rmrCtx);
struct epoll_event event{};
// add RMR fd to epoll
event.events = (EPOLLIN);
event.data.fd = pSctpParams.rmrListenFd;
// add listening RMR FD to epoll
if (epoll_ctl(pSctpParams.epoll_fd, EPOLL_CTL_ADD, pSctpParams.rmrListenFd, &event)) {
mdclog_write(MDCLOG_ERR, "Failed to add RMR descriptor to epoll");
close(pSctpParams.rmrListenFd);
rmr_close(pSctpParams.rmrCtx);
pSctpParams.rmrCtx = nullptr;
}
}
int PER_FromXML(ReportingMessages_t &message, RmrMessagesBuffer_t &rmrMessageBuffer) {
E2AP_PDU_t *pdu = nullptr;
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "got xml setup response of size %d is:%s",
rmrMessageBuffer.rcvMessage->len, rmrMessageBuffer.rcvMessage->payload);
}
auto rval = asn_decode(nullptr, ATS_BASIC_XER, &asn_DEF_E2AP_PDU, (void **) &pdu,
rmrMessageBuffer.rcvMessage->payload, rmrMessageBuffer.rcvMessage->len);
if (rval.code != RC_OK) {
mdclog_write(MDCLOG_ERR, "Error %d Decoding (unpack) setup response from E2MGR : %s",
rval.code,
message.message.enodbName);
return -1;
}
int buff_size = RECEIVE_XAPP_BUFFER_SIZE;
auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu,
rmrMessageBuffer.rcvMessage->payload, buff_size);
if (er.encoded == -1) {
mdclog_write(MDCLOG_ERR, "encoding of %s failed, %s", asn_DEF_E2AP_PDU.name, strerror(errno));
return -1;
} else if (er.encoded > (ssize_t)buff_size) {
mdclog_write(MDCLOG_ERR, "Buffer of size %d is to small for %s, at %s line %d",
(int)rmrMessageBuffer.rcvMessage->len,
asn_DEF_E2AP_PDU.name,
__func__,
__LINE__);
return -1;
}
rmrMessageBuffer.rcvMessage->len = er.encoded;
return 0;
}
/**
*
* @param sctpMap
* @param rmrMessageBuffer
* @param ts
* @return
*/
int receiveXappMessages(Sctp_Map_t *sctpMap,
RmrMessagesBuffer_t &rmrMessageBuffer,
struct timespec &ts) {
if (rmrMessageBuffer.rcvMessage == nullptr) {
//we have error
mdclog_write(MDCLOG_ERR, "RMR Allocation message, %s", strerror(errno));
return -1;
}
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Call to rmr_rcv_msg");
}
rmrMessageBuffer.rcvMessage = rmr_rcv_msg(rmrMessageBuffer.rmrCtx, rmrMessageBuffer.rcvMessage);
if (rmrMessageBuffer.rcvMessage == nullptr) {
mdclog_write(MDCLOG_ERR, "RMR Receving message with null pointer, Realloc rmr mesage buffer");
rmrMessageBuffer.rcvMessage = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, RECEIVE_XAPP_BUFFER_SIZE);
return -2;
}
ReportingMessages_t message;
message.message.direction = 'D';
message.message.time.tv_nsec = ts.tv_nsec;
message.message.time.tv_sec = ts.tv_sec;
// get message payload
//auto msgData = msg->payload;
if (rmrMessageBuffer.rcvMessage->state != 0) {
mdclog_write(MDCLOG_ERR, "RMR Receving message with stat = %d", rmrMessageBuffer.rcvMessage->state);
return -1;
}
rmr_get_meid(rmrMessageBuffer.rcvMessage, (unsigned char *)message.message.enodbName);
switch (rmrMessageBuffer.rcvMessage->mtype) {
case RIC_E2_SETUP_RESP : {
if (PER_FromXML(message, rmrMessageBuffer) != 0) {
break;
}
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_E2_SETUP_RESP");
return -6;
}
break;
}
case RIC_E2_SETUP_FAILURE : {
if (PER_FromXML(message, rmrMessageBuffer) != 0) {
break;
}
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_E2_SETUP_FAILURE");
return -6;
}
break;
}
case RIC_ERROR_INDICATION: {
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_ERROR_INDICATION");
return -6;
}
break;
}
case RIC_SUB_REQ: {
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_SUB_REQ");
return -6;
}
break;
}
case RIC_SUB_DEL_REQ: {
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_SUB_DEL_REQ");
return -6;
}
break;
}
case RIC_CONTROL_REQ: {
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_CONTROL_REQ");
return -6;
}
break;
}
case RIC_SERVICE_QUERY: {
if (PER_FromXML(message, rmrMessageBuffer) != 0) {
break;
}
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_SERVICE_QUERY");
return -6;
}
break;
}
case RIC_SERVICE_UPDATE_ACK: {
if (PER_FromXML(message, rmrMessageBuffer) != 0) {
break;
}
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_SERVICE_UPDATE_ACK");
return -6;
}
break;
}
case RIC_SERVICE_UPDATE_FAILURE: {
if (PER_FromXML(message, rmrMessageBuffer) != 0) {
break;
}
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_SERVICE_UPDATE_FAILURE");
return -6;
}
break;
}
case RIC_X2_RESET: {
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_X2_RESET");
return -6;
}
break;
}
case RIC_X2_RESET_RESP: {
if (sendDirectionalSctpMsg(rmrMessageBuffer, message, 0, sctpMap) != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send RIC_X2_RESET_RESP");
return -6;
}
break;
}
case RIC_SCTP_CLEAR_ALL: {
mdclog_write(MDCLOG_INFO, "RIC_SCTP_CLEAR_ALL");
// loop on all keys and close socket and then erase all map.
vector<char *> v;
sctpMap->getKeys(v);
for (auto const &iter : v) { //}; iter != sctpMap.end(); iter++) {
if (!boost::starts_with((string) (iter), "host:") && !boost::starts_with((string) (iter), "msg:")) {
auto *peerInfo = (ConnectedCU_t *) sctpMap->find(iter);
if (peerInfo == nullptr) {
continue;
}
close(peerInfo->fileDescriptor);
memcpy(message.message.enodbName, peerInfo->enodbName, sizeof(peerInfo->enodbName));
message.message.direction = 'D';
message.message.time.tv_nsec = ts.tv_nsec;
message.message.time.tv_sec = ts.tv_sec;
message.message.asnLength = rmrMessageBuffer.sendMessage->len =
snprintf((char *)rmrMessageBuffer.sendMessage->payload,
256,
"%s|RIC_SCTP_CLEAR_ALL",
peerInfo->enodbName);
message.message.asndata = rmrMessageBuffer.sendMessage->payload;
mdclog_write(MDCLOG_INFO, "%s", message.message.asndata);
if (sendRequestToXapp(message, RIC_SCTP_CONNECTION_FAILURE, rmrMessageBuffer) != 0) {
mdclog_write(MDCLOG_ERR, "SCTP_CONNECTION_FAIL message failed to send to xAPP");
}
free(peerInfo);
}
}
sleep(1);
sctpMap->clear();
break;
}
case E2_TERM_KEEP_ALIVE_REQ: {
// send message back
rmr_bytes2payload(rmrMessageBuffer.sendMessage,
(unsigned char *)rmrMessageBuffer.ka_message,
rmrMessageBuffer.ka_message_len);
rmrMessageBuffer.sendMessage->mtype = E2_TERM_KEEP_ALIVE_RESP;
rmrMessageBuffer.sendMessage->state = 0;
static unsigned char tx[32];
auto txLen = snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(rmrMessageBuffer.sendMessage, tx, txLen);
rmrMessageBuffer.sendMessage = rmr_send_msg(rmrMessageBuffer.rmrCtx, rmrMessageBuffer.sendMessage);
if (rmrMessageBuffer.sendMessage == nullptr) {
rmrMessageBuffer.sendMessage = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, RECEIVE_XAPP_BUFFER_SIZE);
mdclog_write(MDCLOG_ERR, "Failed to send E2_TERM_KEEP_ALIVE_RESP RMR message returned NULL");
} else if (rmrMessageBuffer.sendMessage->state != 0) {
mdclog_write(MDCLOG_ERR, "Failed to send E2_TERM_KEEP_ALIVE_RESP, on RMR state = %d ( %s)",
rmrMessageBuffer.sendMessage->state, translateRmrErrorMessages(rmrMessageBuffer.sendMessage->state).c_str());
} else if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Got Keep Alive Request send : %s", rmrMessageBuffer.ka_message);
}
break;
}
case 42000: {
mdclog_write(MDCLOG_INFO, "Received message 42000");
// sendMessageSocket(1234);
break;
}
default:
mdclog_write(MDCLOG_WARN, "Message Type : %d is not seported", rmrMessageBuffer.rcvMessage->mtype);
message.message.asndata = rmrMessageBuffer.rcvMessage->payload;
message.message.asnLength = rmrMessageBuffer.rcvMessage->len;
message.message.time.tv_nsec = ts.tv_nsec;
message.message.time.tv_sec = ts.tv_sec;
message.message.messageType = rmrMessageBuffer.rcvMessage->mtype;
buildJsonMessage(message);
return -7;
}
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "EXIT OK from %s", __FUNCTION__);
}
return 0;
}
int sendMessageSocket(const int dest_port) {
const char* dest_ip = "10.0.2.100";
int sckfd = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);
if (sckfd < 0) {
mdclog_write(MDCLOG_ERR, "ERROR: OPEN SOCKET");
close(sckfd);
return -1;
}
// SET SOCKET OPTIONS TO RELEASE THE SOCKET ADDRESS IMMEDIATELY AFTER
// THE SOCKET IS CLOSED
int option(1);
setsockopt(sckfd, SOL_SOCKET, SO_REUSEADDR, (char*)&option, sizeof(option));
struct sockaddr_in dest_addr = {0};
dest_addr.sin_family = AF_INET;
dest_addr.sin_port = htons(dest_port);
// convert dest_ip from char* to network address
if (inet_pton(AF_INET, dest_ip, &dest_addr.sin_addr) <= 0) {
mdclog_write(MDCLOG_ERR, "ERROR CONVERTING IP TO INTERNET ADDR");
close(sckfd); // if conversion fail, close the socket and return error -2
return -2;
}
if (connect(sckfd, (struct sockaddr *) &dest_addr, sizeof(dest_addr)) < 0) {
mdclog_write(MDCLOG_ERR, "ERROR: CONNECT");
close(sckfd);
return -3;
}
// TRANSMIT DATA
const size_t max_size = 512;
char buf[max_size] = "Hello, Server!"; // store the data in a buffer
size_t data_size = 14;
int sent_size = sctp_sendmsg(sckfd, buf, data_size, NULL, 0, 0, 0, 0, 0, 0 );
// int sent_size = sctp_sendmsg(sckfd, (void *) msg, strlen(msg) + 1, NULL, 0, 0, 0, 0, 0, 0 );
if(sent_size < 0) { // the send returns a size of -1 in case of errors
mdclog_write(MDCLOG_ERR, "ERROR: SEND");
close(sckfd); // if error close the socket and exit
return -4;
}
else {
mdclog_write(MDCLOG_INFO, "Message sent");
}
close(sckfd);
return 0;
// // open a SOCK_STREAM (TCP) socket
// int sckfd = socket(AF_INET, SOCK_STREAM, 0);
// if (sckfd < 0){
// mdclog_write(MDCLOG_ERR, "ERROR: OPEN SOCKET");
// close(sckfd);
// return -1;
// }
//
// // SET SOCKET OPTIONS TO RELEASE THE SOCKET ADDRESS IMMEDIATELY AFTER
// // THE SOCKET IS CLOSED
// int option(1);
// setsockopt(sckfd, SOL_SOCKET, SO_REUSEADDR, (char*)&option, sizeof(option));
//
// //SET SERVER DESTINATION ADDRESS
// struct sockaddr_in dest_addr = {0}; // set all elements of the struct to 0
// dest_addr.sin_family = AF_INET; // address family is AF_INET (IPV4)
//
// // convert dest_port to network number format
// dest_addr.sin_port = htons(dest_port);
// // convert dest_ip from char* to network address
// if (inet_pton(AF_INET, dest_ip, &dest_addr.sin_addr) <= 0) {
// mdclog_write(MDCLOG_ERR, "ERROR CONVERTING IP TO INTERNET ADDR");
// close(sckfd); // if conversion fail, close the socket and return error -2
// return -2;
// }
//
// //CONNECT THE SOCKET TO THE SERVER IP:PORT SPECIFIED INTO DEST_ADDR
// if (connect(sckfd, (struct sockaddr*) &dest_addr, sizeof(dest_addr)) < 0) {
// mdclog_write(MDCLOG_ERR, "ERROR: CONNECT");
// close(sckfd); // if connection failed return
// return -3;
// }
//
// //TRANSMIT DATA
// const size_t max_size = 512;
// char buf[max_size] = "Hello from e2term"; // store the data in a buffer
// size_t data_size = 10;
// int sent_size = send(sckfd,buf,data_size,0); // send the data through sckfd
//
// if(sent_size < 0) { // the send returns a size of -1 in case of errors
// mdclog_write(MDCLOG_ERR, "ERROR: SEND");
// close(sckfd); // if error close the socket and exit
// return -4;
// }
// else {
// mdclog_write(MDCLOG_INFO, "Message sent");
// }
//
// memset(buf, 0, max_size); // set buffer to zero for next read
//
// //CLOSE THE SOCKET
// close(sckfd);
}
/**
* Send message to the CU that is not expecting for successful or unsuccessful results
* @param messageBuffer
* @param message
* @param failedMsgId
* @param sctpMap
* @return
*/
int sendDirectionalSctpMsg(RmrMessagesBuffer_t &messageBuffer,
ReportingMessages_t &message,
int failedMsgId,
Sctp_Map_t *sctpMap) {
getRequestMetaData(message, messageBuffer);
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "send message to %s address", message.message.enodbName);
}
auto rc = sendMessagetoCu(sctpMap, messageBuffer, message, failedMsgId);
return rc;
}
/**
*
* @param sctpMap
* @param messageBuffer
* @param message
* @param failedMesgId
* @return
*/
int sendMessagetoCu(Sctp_Map_t *sctpMap,
RmrMessagesBuffer_t &messageBuffer,
ReportingMessages_t &message,
int failedMesgId) {
auto *peerInfo = (ConnectedCU_t *) sctpMap->find(message.message.enodbName);
if (peerInfo == nullptr) {
if (failedMesgId != 0) {
sendFailedSendingMessagetoXapp(messageBuffer, message, failedMesgId);
} else {
mdclog_write(MDCLOG_ERR, "Failed to send message no CU entry %s", message.message.enodbName);
}
return -1;
}
// get the FD
message.message.messageType = messageBuffer.rcvMessage->mtype;
auto rc = sendSctpMsg(peerInfo, message, sctpMap);
return rc;
}
/**
*
* @param rmrCtx the rmr context to send and receive
* @param msg the msg we got fromxApp
* @param metaData data from xApp in ordered struct
* @param failedMesgId the return message type error
*/
void
sendFailedSendingMessagetoXapp(RmrMessagesBuffer_t &rmrMessageBuffer, ReportingMessages_t &message, int failedMesgId) {
rmr_mbuf_t *msg = rmrMessageBuffer.sendMessage;
msg->len = snprintf((char *) msg->payload, 200, "the gNb/eNode name %s not found",
message.message.enodbName);
if (mdclog_level_get() >= MDCLOG_INFO) {
mdclog_write(MDCLOG_INFO, "%s", msg->payload);
}
msg->mtype = failedMesgId;
msg->state = 0;
static unsigned char tx[32];
snprintf((char *) tx, sizeof tx, "%15ld", transactionCounter++);
rmr_bytes2xact(msg, tx, strlen((const char *) tx));
sendRmrMessage(rmrMessageBuffer, message);
}
/**
*
* @param epoll_fd
* @param peerInfo
* @param events
* @param sctpMap
* @param enodbName
* @param msgType
* @return
*/
int addToEpoll(int epoll_fd,
ConnectedCU_t *peerInfo,
uint32_t events,
Sctp_Map_t *sctpMap,
char *enodbName,
int msgType) {
// Add to Epol
struct epoll_event event{};
event.data.ptr = peerInfo;
event.events = events;
if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, peerInfo->fileDescriptor, &event) < 0) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "epoll_ctl EPOLL_CTL_ADD (may chack not to quit here), %s, %s %d",
strerror(errno), __func__, __LINE__);
}
close(peerInfo->fileDescriptor);
if (enodbName != nullptr) {
cleanHashEntry(peerInfo, sctpMap);
char key[MAX_ENODB_NAME_SIZE * 2];
snprintf(key, MAX_ENODB_NAME_SIZE * 2, "msg:%s|%d", enodbName, msgType);
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "remove key = %s from %s at line %d", key, __FUNCTION__, __LINE__);
}
auto tmp = sctpMap->find(key);
if (tmp) {
free(tmp);
sctpMap->erase(key);
}
} else {
peerInfo->enodbName[0] = 0;
}
mdclog_write(MDCLOG_ERR, "epoll_ctl EPOLL_CTL_ADD (may chack not to quit here)");
return -1;
}
return 0;
}
/**
*
* @param epoll_fd
* @param peerInfo
* @param events
* @param sctpMap
* @param enodbName
* @param msgType
* @return
*/
int modifyToEpoll(int epoll_fd,
ConnectedCU_t *peerInfo,
uint32_t events,
Sctp_Map_t *sctpMap,
char *enodbName,
int msgType) {
// Add to Epol
struct epoll_event event{};
event.data.ptr = peerInfo;
event.events = events;
if (epoll_ctl(epoll_fd, EPOLL_CTL_MOD, peerInfo->fileDescriptor, &event) < 0) {
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "epoll_ctl EPOLL_CTL_MOD (may chack not to quit here), %s, %s %d",
strerror(errno), __func__, __LINE__);
}
close(peerInfo->fileDescriptor);
cleanHashEntry(peerInfo, sctpMap);
char key[MAX_ENODB_NAME_SIZE * 2];
snprintf(key, MAX_ENODB_NAME_SIZE * 2, "msg:%s|%d", enodbName, msgType);
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "remove key = %s from %s at line %d", key, __FUNCTION__, __LINE__);
}
auto tmp = sctpMap->find(key);
if (tmp) {
free(tmp);
}
sctpMap->erase(key);
mdclog_write(MDCLOG_ERR, "epoll_ctl EPOLL_CTL_ADD (may chack not to quit here)");
return -1;
}
return 0;
}
int sendRmrMessage(RmrMessagesBuffer_t &rmrMessageBuffer, ReportingMessages_t &message) {
buildJsonMessage(message);
rmrMessageBuffer.sendMessage = rmr_send_msg(rmrMessageBuffer.rmrCtx, rmrMessageBuffer.sendMessage);
if (rmrMessageBuffer.sendMessage == nullptr) {
rmrMessageBuffer.sendMessage = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, RECEIVE_XAPP_BUFFER_SIZE);
mdclog_write(MDCLOG_ERR, "RMR failed send message returned with NULL pointer");
return -1;
}
if (rmrMessageBuffer.sendMessage->state != 0) {
char meid[RMR_MAX_MEID]{};
if (rmrMessageBuffer.sendMessage->state == RMR_ERR_RETRY) {
usleep(5);
rmrMessageBuffer.sendMessage->state = 0;
mdclog_write(MDCLOG_INFO, "RETRY sending Message type %d to Xapp from %s",
rmrMessageBuffer.sendMessage->mtype,
rmr_get_meid(rmrMessageBuffer.sendMessage, (unsigned char *)meid));
rmrMessageBuffer.sendMessage = rmr_send_msg(rmrMessageBuffer.rmrCtx, rmrMessageBuffer.sendMessage);
if (rmrMessageBuffer.sendMessage == nullptr) {
mdclog_write(MDCLOG_ERR, "RMR failed send message returned with NULL pointer");
rmrMessageBuffer.sendMessage = rmr_alloc_msg(rmrMessageBuffer.rmrCtx, RECEIVE_XAPP_BUFFER_SIZE);
return -1;
} else if (rmrMessageBuffer.sendMessage->state != 0) {
mdclog_write(MDCLOG_ERR,
"Message state %s while sending request %d to Xapp from %s after retry of 10 microseconds",
translateRmrErrorMessages(rmrMessageBuffer.sendMessage->state).c_str(),
rmrMessageBuffer.sendMessage->mtype,
rmr_get_meid(rmrMessageBuffer.sendMessage, (unsigned char *)meid));
auto rc = rmrMessageBuffer.sendMessage->state;
return rc;
}
} else {
mdclog_write(MDCLOG_ERR, "Message state %s while sending request %d to Xapp from %s",
translateRmrErrorMessages(rmrMessageBuffer.sendMessage->state).c_str(),
rmrMessageBuffer.sendMessage->mtype,
rmr_get_meid(rmrMessageBuffer.sendMessage, (unsigned char *)meid));
return rmrMessageBuffer.sendMessage->state;
}
}
return 0;
}
void buildJsonMessage(ReportingMessages_t &message) {
if (jsonTrace) {
message.outLen = sizeof(message.base64Data);
base64::encode((const unsigned char *) message.message.asndata,
(const int) message.message.asnLength,
message.base64Data,
message.outLen);
if (mdclog_level_get() >= MDCLOG_DEBUG) {
mdclog_write(MDCLOG_DEBUG, "Tracing: ASN length = %d, base64 message length = %d ",
(int) message.message.asnLength,
(int) message.outLen);
}
snprintf(message.buffer, sizeof(message.buffer),
"{\"header\": {\"ts\": \"%ld.%09ld\","
"\"ranName\": \"%s\","
"\"messageType\": %d,"
"\"direction\": \"%c\"},"
"\"base64Length\": %d,"
"\"asnBase64\": \"%s\"}",
message.message.time.tv_sec,
message.message.time.tv_nsec,
message.message.enodbName,
message.message.messageType,
message.message.direction,
(int) message.outLen,
message.base64Data);
static src::logger_mt &lg = my_logger::get();
BOOST_LOG(lg) << message.buffer;
}
}
/**
* take RMR error code to string
* @param state
* @return
*/
string translateRmrErrorMessages(int state) {
string str = {};
switch (state) {
case RMR_OK:
str = "RMR_OK - state is good";
break;
case RMR_ERR_BADARG:
str = "RMR_ERR_BADARG - argument passd to function was unusable";
break;
case RMR_ERR_NOENDPT:
str = "RMR_ERR_NOENDPT - send//call could not find an endpoint based on msg type";
break;
case RMR_ERR_EMPTY:
str = "RMR_ERR_EMPTY - msg received had no payload; attempt to send an empty message";
break;
case RMR_ERR_NOHDR:
str = "RMR_ERR_NOHDR - message didn't contain a valid header";
break;
case RMR_ERR_SENDFAILED:
str = "RMR_ERR_SENDFAILED - send failed; errno has nano reason";
break;
case RMR_ERR_CALLFAILED:
str = "RMR_ERR_CALLFAILED - unable to send call() message";
break;
case RMR_ERR_NOWHOPEN:
str = "RMR_ERR_NOWHOPEN - no wormholes are open";
break;
case RMR_ERR_WHID:
str = "RMR_ERR_WHID - wormhole id was invalid";
break;
case RMR_ERR_OVERFLOW:
str = "RMR_ERR_OVERFLOW - operation would have busted through a buffer/field size";
break;
case RMR_ERR_RETRY:
str = "RMR_ERR_RETRY - request (send/call/rts) failed, but caller should retry (EAGAIN for wrappers)";
break;
case RMR_ERR_RCVFAILED:
str = "RMR_ERR_RCVFAILED - receive failed (hard error)";
break;
case RMR_ERR_TIMEOUT:
str = "RMR_ERR_TIMEOUT - message processing call timed out";
break;
case RMR_ERR_UNSET:
str = "RMR_ERR_UNSET - the message hasn't been populated with a transport buffer";
break;
case RMR_ERR_TRUNC:
str = "RMR_ERR_TRUNC - received message likely truncated";
break;
case RMR_ERR_INITFAILED:
str = "RMR_ERR_INITFAILED - initialisation of something (probably message) failed";
break;
case RMR_ERR_NOTSUPP:
str = "RMR_ERR_NOTSUPP - the request is not supported, or RMr was not initialised for the request";
break;
default:
char buf[128]{};
snprintf(buf, sizeof buf, "UNDOCUMENTED RMR_ERR : %d", state);
str = buf;
break;
}
return str;
}
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