osquery-1/osquery/logger/plugins/syslog.cpp

74 lines
2.2 KiB
C++

/*
* Copyright (c) 2014-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*/
#include <syslog.h>
#include <osquery/flags.h>
#include <osquery/logger.h>
namespace osquery {
FLAG(int32,
logger_syslog_facility,
LOG_LOCAL3 >> 3,
"Syslog facility for status and results logs (0-23, default 19)");
class SyslogLoggerPlugin : public LoggerPlugin {
public:
Status logString(const std::string& s) override;
Status init(const std::string& name,
const std::vector<StatusLogLine>& log) override;
Status logStatus(const std::vector<StatusLogLine>& log) override;
};
REGISTER(SyslogLoggerPlugin, "logger", "syslog");
Status SyslogLoggerPlugin::logString(const std::string& s) {
syslog(LOG_INFO, "%s", s.c_str());
return Status(0, "OK");
}
Status SyslogLoggerPlugin::logStatus(const std::vector<StatusLogLine>& log) {
for (const auto& item : log) {
int severity = LOG_NOTICE;
if (item.severity == O_INFO) {
severity = LOG_NOTICE;
} else if (item.severity == O_WARNING) {
severity = LOG_WARNING;
} else if (item.severity == O_ERROR) {
severity = LOG_ERR;
} else if (item.severity == O_FATAL) {
severity = LOG_CRIT;
}
std::string line = "severity=" + std::to_string(item.severity) +
" location=" + item.filename + ":" +
std::to_string(item.line) + " message=" + item.message;
syslog(severity, "%s", line.c_str());
}
return Status(0, "OK");
}
Status SyslogLoggerPlugin::init(const std::string& name,
const std::vector<StatusLogLine>& log) {
closelog();
// Define the syslog/target's application name.
if (FLAGS_logger_syslog_facility < 0 || FLAGS_logger_syslog_facility > 23) {
FLAGS_logger_syslog_facility = LOG_LOCAL3 >> 3;
}
openlog(name.c_str(), LOG_PID | LOG_CONS, FLAGS_logger_syslog_facility << 3);
// Now funnel the intermediate status logs provided to `init`.
return logStatus(log);
}
}