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/*
* SPDX license identifier: MPL-2.0
*
* Copyright (C) 2011-2015, BMW AG
*
* This file is part of GENIVI Project DLT - Diagnostic Log and Trace.
*
* This Source Code Form is subject to the terms of the
* Mozilla Public License (MPL), v. 2.0.
* If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* For further information see http://www.genivi.org/.
*/
/*!
* \author Lassi Marttala <lassi.lm.marttala@partner.bmw.de>
*
* \copyright Copyright © 2011-2015 BMW AG. \n
* License MPL-2.0: Mozilla Public License version 2.0 http://mozilla.org/MPL/2.0/.
*
* \file dlt-system-syslog.c
*/
/*******************************************************************************
** **
** SRC-MODULE: dlt-system-syslog.c **
** **
** TARGET : linux **
** **
** PROJECT : DLT **
** **
** AUTHOR : Lassi Marttala <lassi.lm.marttala@partner.bmw.de> **
** Alexander Wenzel Alexander.AW.Wenzel@bmw.de **
** **
** PURPOSE : **
** **
** REMARKS : **
** **
** PLATFORM DEPENDANT [yes/no]: yes **
** **
** TO BE CHANGED BY USER [yes/no]: no **
** **
*******************************************************************************/
#include <pthread.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <errno.h>
#include "dlt-system.h"
extern DltSystemThreads threads;
DLT_IMPORT_CONTEXT(dltsystem)
DLT_DECLARE_CONTEXT(syslogContext)
#define RECV_BUF_SZ 1024
int init_socket(SyslogOptions opts)
{
DLT_LOG(dltsystem, DLT_LOG_DEBUG,
DLT_STRING("dlt-system-syslog, init socket, port: "),
DLT_INT(opts.Port));
int sock = -1;
struct sockaddr_in syslog_addr;
#ifdef DLT_USE_IPv6
sock = socket(AF_INET6, SOCK_DGRAM, 0);
#else
sock = socket(AF_INET, SOCK_DGRAM, 0);
#endif
if (sock < 0) {
DLT_LOG(syslogContext, DLT_LOG_FATAL,
DLT_STRING("Unable to create socket for SYSLOG."));
return -1;
}
#ifdef DLT_USE_IPv6
syslog_addr.sin_family = AF_INET6;
#else
syslog_addr.sin_family = AF_INET;
#endif
syslog_addr.sin_port = htons(opts.Port);
syslog_addr.sin_addr.s_addr = INADDR_ANY;
memset(&(syslog_addr.sin_zero), 0, 8);
if (bind(sock, (struct sockaddr *)&syslog_addr,
sizeof(struct sockaddr)) == -1) {
DLT_LOG(syslogContext, DLT_LOG_FATAL,
DLT_STRING("Unable to bind socket for SYSLOG."));
close(sock);
return -1;
}
return sock;
}
int read_socket(int sock)
{
DLT_LOG(dltsystem, DLT_LOG_DEBUG,
DLT_STRING("dlt-system-syslog, read socket"));
char recv_data[RECV_BUF_SZ];
struct sockaddr_in client_addr;
socklen_t addr_len = sizeof(struct sockaddr_in);
int bytes_read = recvfrom(sock, recv_data, RECV_BUF_SZ, 0,
(struct sockaddr *)&client_addr, &addr_len);
if (bytes_read == -1) {
if (errno == EINTR) {
return 0;
}
else {
DLT_LOG(syslogContext, DLT_LOG_FATAL,
DLT_STRING("Read from socket failed in SYSLOG."));
return -1;
}
}
recv_data[bytes_read] = '\0';
if (bytes_read != 0)
DLT_LOG(syslogContext, DLT_LOG_INFO, DLT_STRING(recv_data));
return bytes_read;
}
void syslog_thread(void *v_conf)
{
DLT_LOG(dltsystem, DLT_LOG_DEBUG,
DLT_STRING("dlt-system-syslog, in thread."));
DltSystemConfiguration *conf = (DltSystemConfiguration *)v_conf;
DLT_REGISTER_CONTEXT(syslogContext, conf->Syslog.ContextId, "SYSLOG Adapter");
int sock = init_socket(conf->Syslog);
if (sock < 0)
return;
while (!threads.shutdown)
if (read_socket(sock) < 0) {
close(sock);
return;
}
close (sock);
}
void start_syslog(DltSystemConfiguration *conf)
{
DLT_LOG(dltsystem, DLT_LOG_DEBUG,
DLT_STRING("dlt-system-syslog, start syslog"));
static pthread_attr_t t_attr;
static pthread_t pt;
pthread_create(&pt, &t_attr, (void *)syslog_thread, conf);
threads.threads[threads.count++] = pt;
}
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