/**
* \brief Create a new LogFileCtx for "syslog" output style.
*
* \param conf The configuration node for this output.
* \return A OutputCtx pointer on success, NULL on failure.
*/
OutputCtx *AlertSyslogInitCtx(ConfNode *conf)
{
const char *facility_s = ConfNodeLookupChildValue(conf, "facility");
if (facility_s == NULL) {
facility_s = DEFAULT_ALERT_SYSLOG_FACILITY_STR;
}
LogFileCtx *logfile_ctx = LogFileNewCtx();
if (logfile_ctx == NULL) {
SCLogDebug("AlertSyslogInitCtx: Could not create new LogFileCtx");
return NULL;
}
int facility = SCMapEnumNameToValue(facility_s, SCSyslogGetFacilityMap());
if (facility == -1) {
SCLogWarning(SC_ERR_INVALID_ARGUMENT, "Invalid syslog facility: \"%s\","
" now using \"%s\" as syslog facility", facility_s,
DEFAULT_ALERT_SYSLOG_FACILITY_STR);
facility = DEFAULT_ALERT_SYSLOG_FACILITY;
}
const char *level_s = ConfNodeLookupChildValue(conf, "level");
if (level_s != NULL) {
int level = SCMapEnumNameToValue(level_s, SCSyslogGetLogLevelMap());
if (level != -1) {
alert_syslog_level = level;
}
}
const char *ident = ConfNodeLookupChildValue(conf, "identity");
/* if null we just pass that to openlog, which will then
* figure it out by itself. */
openlog(ident, LOG_PID|LOG_NDELAY, facility);
OutputCtx *output_ctx = SCMalloc(sizeof(OutputCtx));
if (unlikely(output_ctx == NULL)) {
SCLogDebug("AlertSyslogInitCtx: Could not create new OutputCtx");
return NULL;
}
memset(output_ctx, 0x00, sizeof(OutputCtx));
output_ctx->data = logfile_ctx;
output_ctx->DeInit = AlertSyslogDeInitCtx;
SCLogInfo("Syslog output initialized");
return output_ctx;
}
/**
* \brief Create a new LogFileCtx for "fast" output style.
* \param conf The configuration node for this output.
* \return A LogFileCtx pointer on success, NULL on failure.
*/
OutputCtx *OutputJsonInitCtx(ConfNode *conf)
{
OutputJsonCtx *json_ctx = SCCalloc(1, sizeof(OutputJsonCtx));;
if (unlikely(json_ctx == NULL)) {
SCLogDebug("AlertJsonInitCtx: Could not create new LogFileCtx");
return NULL;
}
json_ctx->file_ctx = LogFileNewCtx();
if (unlikely(json_ctx->file_ctx == NULL)) {
SCLogDebug("AlertJsonInitCtx: Could not create new LogFileCtx");
SCFree(json_ctx);
return NULL;
}
OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
if (unlikely(output_ctx == NULL)) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
return NULL;
}
output_ctx->data = json_ctx;
output_ctx->DeInit = OutputJsonDeInitCtx;
if (conf) {
const char *output_s = ConfNodeLookupChildValue(conf, "type");
if (output_s != NULL) {
if (strcmp(output_s, "file") == 0) {
json_ctx->json_out = ALERT_FILE;
} else if (strcmp(output_s, "syslog") == 0) {
json_ctx->json_out = ALERT_SYSLOG;
} else if (strcmp(output_s, "unix_dgram") == 0) {
json_ctx->json_out = ALERT_UNIX_DGRAM;
} else if (strcmp(output_s, "unix_stream") == 0) {
json_ctx->json_out = ALERT_UNIX_STREAM;
} else {
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Invalid JSON output option: %s", output_s);
exit(EXIT_FAILURE);
}
}
if (json_ctx->json_out == ALERT_FILE) {
if (SCConfLogOpenGeneric(conf, json_ctx->file_ctx, DEFAULT_LOG_FILENAME) < 0) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
SCFree(output_ctx);
return NULL;
}
const char *format_s = ConfNodeLookupChildValue(conf, "format");
if (format_s != NULL) {
if (strcmp(format_s, "indent") == 0) {
json_ctx->format = INDENT;
} else if (strcmp(format_s, "compact") == 0) {
json_ctx->format = COMPACT;
} else {
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Invalid JSON format option: %s", format_s);
exit(EXIT_FAILURE);
}
}
} else if (json_out == ALERT_SYSLOG) {
const char *facility_s = ConfNodeLookupChildValue(conf, "facility");
if (facility_s == NULL) {
facility_s = DEFAULT_ALERT_SYSLOG_FACILITY_STR;
}
int facility = SCMapEnumNameToValue(facility_s, SCSyslogGetFacilityMap());
if (facility == -1) {
SCLogWarning(SC_ERR_INVALID_ARGUMENT, "Invalid syslog facility: \"%s\","
" now using \"%s\" as syslog facility", facility_s,
DEFAULT_ALERT_SYSLOG_FACILITY_STR);
facility = DEFAULT_ALERT_SYSLOG_FACILITY;
}
const char *level_s = ConfNodeLookupChildValue(conf, "level");
if (level_s != NULL) {
int level = SCMapEnumNameToValue(level_s, SCSyslogGetLogLevelMap());
if (level != -1) {
alert_syslog_level = level;
}
}
const char *ident = ConfNodeLookupChildValue(conf, "identity");
/* if null we just pass that to openlog, which will then
* figure it out by itself. */
openlog(ident, LOG_PID|LOG_NDELAY, facility);
}
const char *sensor_id_s = ConfNodeLookupChildValue(conf, "sensor-id");
if (sensor_id_s != NULL) {
if (ByteExtractStringUint64((uint64_t *)&sensor_id, 10, 0, sensor_id_s) == -1) {
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Failed to initialize JSON output, "
"invalid sensor-is: %s", sensor_id_s);
exit(EXIT_FAILURE);
}
}
format = json_ctx->format;
json_out = json_ctx->json_out;
}
return output_ctx;
}
/**
* \brief Create a new LogFileCtx for "fast" output style.
* \param conf The configuration node for this output.
* \return A LogFileCtx pointer on success, NULL on failure.
*/
OutputCtx *OutputJsonInitCtx(ConfNode *conf)
{
OutputJsonCtx *json_ctx = SCCalloc(1, sizeof(OutputJsonCtx));;
const char *sensor_name = ConfNodeLookupChildValue(conf, "sensor-name");
if (unlikely(json_ctx == NULL)) {
SCLogDebug("AlertJsonInitCtx: Could not create new LogFileCtx");
return NULL;
}
json_ctx->file_ctx = LogFileNewCtx();
if (unlikely(json_ctx->file_ctx == NULL)) {
SCLogDebug("AlertJsonInitCtx: Could not create new LogFileCtx");
SCFree(json_ctx);
return NULL;
}
if (sensor_name) {
json_ctx->file_ctx->sensor_name = SCStrdup(sensor_name);
if (json_ctx->file_ctx->sensor_name == NULL) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
return NULL;
}
} else {
json_ctx->file_ctx->sensor_name = NULL;
}
OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
if (unlikely(output_ctx == NULL)) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
return NULL;
}
output_ctx->data = json_ctx;
output_ctx->DeInit = OutputJsonDeInitCtx;
if (conf) {
const char *output_s = ConfNodeLookupChildValue(conf, "filetype");
// Backwards compatibility
if (output_s == NULL) {
output_s = ConfNodeLookupChildValue(conf, "type");
}
if (output_s != NULL) {
if (strcmp(output_s, "file") == 0 ||
strcmp(output_s, "regular") == 0) {
json_ctx->json_out = LOGFILE_TYPE_FILE;
} else if (strcmp(output_s, "syslog") == 0) {
json_ctx->json_out = LOGFILE_TYPE_SYSLOG;
} else if (strcmp(output_s, "unix_dgram") == 0) {
json_ctx->json_out = LOGFILE_TYPE_UNIX_DGRAM;
} else if (strcmp(output_s, "unix_stream") == 0) {
json_ctx->json_out = LOGFILE_TYPE_UNIX_STREAM;
} else if (strcmp(output_s, "redis") == 0) {
#ifdef HAVE_LIBHIREDIS
json_ctx->json_out = LOGFILE_TYPE_REDIS;
#else
SCLogError(SC_ERR_INVALID_ARGUMENT,
"redis JSON output option is not compiled");
exit(EXIT_FAILURE);
#endif
} else {
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Invalid JSON output option: %s", output_s);
exit(EXIT_FAILURE);
}
}
const char *prefix = ConfNodeLookupChildValue(conf, "prefix");
if (prefix != NULL)
{
SCLogInfo("Using prefix '%s' for JSON messages", prefix);
json_ctx->file_ctx->prefix = SCStrdup(prefix);
if (json_ctx->file_ctx->prefix == NULL)
{
SCLogError(SC_ERR_MEM_ALLOC,
"Failed to allocate memory for eve-log.prefix setting.");
exit(EXIT_FAILURE);
}
json_ctx->file_ctx->prefix_len = strlen(prefix);
}
if (json_ctx->json_out == LOGFILE_TYPE_FILE ||
json_ctx->json_out == LOGFILE_TYPE_UNIX_DGRAM ||
json_ctx->json_out == LOGFILE_TYPE_UNIX_STREAM)
{
if (SCConfLogOpenGeneric(conf, json_ctx->file_ctx, DEFAULT_LOG_FILENAME, 1) < 0) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
SCFree(output_ctx);
return NULL;
}
OutputRegisterFileRotationFlag(&json_ctx->file_ctx->rotation_flag);
const char *format_s = ConfNodeLookupChildValue(conf, "format");
if (format_s != NULL) {
if (strcmp(format_s, "indent") == 0) {
json_ctx->format = INDENT;
} else if (strcmp(format_s, "compact") == 0) {
json_ctx->format = COMPACT;
} else {
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Invalid JSON format option: %s", format_s);
exit(EXIT_FAILURE);
}
}
} else if (json_ctx->json_out == LOGFILE_TYPE_SYSLOG) {
const char *facility_s = ConfNodeLookupChildValue(conf, "facility");
if (facility_s == NULL) {
facility_s = DEFAULT_ALERT_SYSLOG_FACILITY_STR;
}
int facility = SCMapEnumNameToValue(facility_s, SCSyslogGetFacilityMap());
if (facility == -1) {
SCLogWarning(SC_ERR_INVALID_ARGUMENT, "Invalid syslog facility: \"%s\","
" now using \"%s\" as syslog facility", facility_s,
DEFAULT_ALERT_SYSLOG_FACILITY_STR);
facility = DEFAULT_ALERT_SYSLOG_FACILITY;
}
const char *level_s = ConfNodeLookupChildValue(conf, "level");
if (level_s != NULL) {
int level = SCMapEnumNameToValue(level_s, SCSyslogGetLogLevelMap());
if (level != -1) {
json_ctx->file_ctx->syslog_setup.alert_syslog_level = level;
}
}
const char *ident = ConfNodeLookupChildValue(conf, "identity");
/* if null we just pass that to openlog, which will then
* figure it out by itself. */
openlog(ident, LOG_PID|LOG_NDELAY, facility);
}
#ifdef HAVE_LIBHIREDIS
else if (json_ctx->json_out == LOGFILE_TYPE_REDIS) {
ConfNode *redis_node = ConfNodeLookupChild(conf, "redis");
if (!json_ctx->file_ctx->sensor_name) {
char hostname[1024];
gethostname(hostname, 1023);
json_ctx->file_ctx->sensor_name = SCStrdup(hostname);
}
if (json_ctx->file_ctx->sensor_name == NULL) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
SCFree(output_ctx);
return NULL;
}
if (SCConfLogOpenRedis(redis_node, json_ctx->file_ctx) < 0) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
SCFree(output_ctx);
return NULL;
}
}
#endif
const char *sensor_id_s = ConfNodeLookupChildValue(conf, "sensor-id");
if (sensor_id_s != NULL) {
if (ByteExtractStringUint64((uint64_t *)&sensor_id, 10, 0, sensor_id_s) == -1) {
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Failed to initialize JSON output, "
"invalid sensor-is: %s", sensor_id_s);
exit(EXIT_FAILURE);
}
}
json_ctx->file_ctx->type = json_ctx->json_out;
}
SCLogDebug("returning output_ctx %p", output_ctx);
return output_ctx;
}
/**
* \brief Create a new LogFileCtx for "fast" output style.
* \param conf The configuration node for this output.
* \return A LogFileCtx pointer on success, NULL on failure.
*/
OutputInitResult OutputJsonInitCtx(ConfNode *conf)
{
OutputInitResult result = { NULL, false };
OutputJsonCtx *json_ctx = SCCalloc(1, sizeof(OutputJsonCtx));
if (unlikely(json_ctx == NULL)) {
SCLogDebug("could not create new OutputJsonCtx");
return result;
}
/* First lookup a sensor-name value in this outputs configuration
* node (deprecated). If that fails, lookup the global one. */
const char *sensor_name = ConfNodeLookupChildValue(conf, "sensor-name");
if (sensor_name != NULL) {
SCLogWarning(SC_ERR_DEPRECATED_CONF,
"Found deprecated eve-log setting \"sensor-name\". "
"Please set sensor-name globally.");
}
else {
(void)ConfGet("sensor-name", &sensor_name);
}
json_ctx->file_ctx = LogFileNewCtx();
if (unlikely(json_ctx->file_ctx == NULL)) {
SCLogDebug("AlertJsonInitCtx: Could not create new LogFileCtx");
SCFree(json_ctx);
return result;
}
if (sensor_name) {
json_ctx->file_ctx->sensor_name = SCStrdup(sensor_name);
if (json_ctx->file_ctx->sensor_name == NULL) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
return result;
}
} else {
json_ctx->file_ctx->sensor_name = NULL;
}
OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
if (unlikely(output_ctx == NULL)) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
return result;
}
output_ctx->data = json_ctx;
output_ctx->DeInit = OutputJsonDeInitCtx;
if (conf) {
const char *output_s = ConfNodeLookupChildValue(conf, "filetype");
// Backwards compatibility
if (output_s == NULL) {
output_s = ConfNodeLookupChildValue(conf, "type");
}
if (output_s != NULL) {
if (strcmp(output_s, "file") == 0 ||
strcmp(output_s, "regular") == 0) {
json_ctx->json_out = LOGFILE_TYPE_FILE;
} else if (strcmp(output_s, "syslog") == 0) {
json_ctx->json_out = LOGFILE_TYPE_SYSLOG;
} else if (strcmp(output_s, "unix_dgram") == 0) {
json_ctx->json_out = LOGFILE_TYPE_UNIX_DGRAM;
} else if (strcmp(output_s, "unix_stream") == 0) {
json_ctx->json_out = LOGFILE_TYPE_UNIX_STREAM;
} else if (strcmp(output_s, "redis") == 0) {
#ifdef HAVE_LIBHIREDIS
SCLogRedisInit();
json_ctx->json_out = LOGFILE_TYPE_REDIS;
#else
SCLogError(SC_ERR_INVALID_ARGUMENT,
"redis JSON output option is not compiled");
exit(EXIT_FAILURE);
#endif
} else {
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Invalid JSON output option: %s", output_s);
exit(EXIT_FAILURE);
}
}
const char *prefix = ConfNodeLookupChildValue(conf, "prefix");
if (prefix != NULL)
{
SCLogInfo("Using prefix '%s' for JSON messages", prefix);
json_ctx->file_ctx->prefix = SCStrdup(prefix);
if (json_ctx->file_ctx->prefix == NULL)
{
SCLogError(SC_ERR_MEM_ALLOC,
"Failed to allocate memory for eve-log.prefix setting.");
exit(EXIT_FAILURE);
}
json_ctx->file_ctx->prefix_len = strlen(prefix);
}
if (json_ctx->json_out == LOGFILE_TYPE_FILE ||
json_ctx->json_out == LOGFILE_TYPE_UNIX_DGRAM ||
json_ctx->json_out == LOGFILE_TYPE_UNIX_STREAM)
{
if (SCConfLogOpenGeneric(conf, json_ctx->file_ctx, DEFAULT_LOG_FILENAME, 1) < 0) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
SCFree(output_ctx);
return result;
}
OutputRegisterFileRotationFlag(&json_ctx->file_ctx->rotation_flag);
}
#ifndef OS_WIN32
else if (json_ctx->json_out == LOGFILE_TYPE_SYSLOG) {
const char *facility_s = ConfNodeLookupChildValue(conf, "facility");
if (facility_s == NULL) {
facility_s = DEFAULT_ALERT_SYSLOG_FACILITY_STR;
}
int facility = SCMapEnumNameToValue(facility_s, SCSyslogGetFacilityMap());
if (facility == -1) {
SCLogWarning(SC_ERR_INVALID_ARGUMENT, "Invalid syslog facility: \"%s\","
" now using \"%s\" as syslog facility", facility_s,
DEFAULT_ALERT_SYSLOG_FACILITY_STR);
facility = DEFAULT_ALERT_SYSLOG_FACILITY;
}
const char *level_s = ConfNodeLookupChildValue(conf, "level");
if (level_s != NULL) {
int level = SCMapEnumNameToValue(level_s, SCSyslogGetLogLevelMap());
if (level != -1) {
json_ctx->file_ctx->syslog_setup.alert_syslog_level = level;
}
}
const char *ident = ConfNodeLookupChildValue(conf, "identity");
/* if null we just pass that to openlog, which will then
* figure it out by itself. */
openlog(ident, LOG_PID|LOG_NDELAY, facility);
}
#endif
#ifdef HAVE_LIBHIREDIS
else if (json_ctx->json_out == LOGFILE_TYPE_REDIS) {
ConfNode *redis_node = ConfNodeLookupChild(conf, "redis");
if (!json_ctx->file_ctx->sensor_name) {
char hostname[1024];
gethostname(hostname, 1023);
json_ctx->file_ctx->sensor_name = SCStrdup(hostname);
}
if (json_ctx->file_ctx->sensor_name == NULL) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
SCFree(output_ctx);
return result;
}
if (SCConfLogOpenRedis(redis_node, json_ctx->file_ctx) < 0) {
LogFileFreeCtx(json_ctx->file_ctx);
SCFree(json_ctx);
SCFree(output_ctx);
return result;
}
}
#endif
const char *sensor_id_s = ConfNodeLookupChildValue(conf, "sensor-id");
if (sensor_id_s != NULL) {
if (ByteExtractStringUint64((uint64_t *)&sensor_id, 10, 0, sensor_id_s) == -1) {
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Failed to initialize JSON output, "
"invalid sensor-id: %s", sensor_id_s);
exit(EXIT_FAILURE);
}
}
/* Check if top-level metadata should be logged. */
const ConfNode *metadata = ConfNodeLookupChild(conf, "metadata");
if (metadata && metadata->val && ConfValIsFalse(metadata->val)) {
SCLogConfig("Disabling eve metadata logging.");
json_ctx->cfg.include_metadata = false;
} else {
json_ctx->cfg.include_metadata = true;
}
/* See if we want to enable the community id */
const ConfNode *community_id = ConfNodeLookupChild(conf, "community-id");
if (community_id && community_id->val && ConfValIsTrue(community_id->val)) {
SCLogConfig("Enabling eve community_id logging.");
json_ctx->cfg.include_community_id = true;
} else {
json_ctx->cfg.include_community_id = false;
}
const char *cid_seed = ConfNodeLookupChildValue(conf, "community-id-seed");
if (cid_seed != NULL) {
if (ByteExtractStringUint16(&json_ctx->cfg.community_id_seed,
10, 0, cid_seed) == -1)
{
SCLogError(SC_ERR_INVALID_ARGUMENT,
"Failed to initialize JSON output, "
"invalid community-id-seed: %s", cid_seed);
exit(EXIT_FAILURE);
}
}
/* Do we have a global eve xff configuration? */
const ConfNode *xff = ConfNodeLookupChild(conf, "xff");
if (xff != NULL) {
json_ctx->xff_cfg = SCCalloc(1, sizeof(HttpXFFCfg));
if (likely(json_ctx->xff_cfg != NULL)) {
HttpXFFGetCfg(conf, json_ctx->xff_cfg);
}
}
const char *pcapfile_s = ConfNodeLookupChildValue(conf, "pcap-file");
if (pcapfile_s != NULL && ConfValIsTrue(pcapfile_s)) {
json_ctx->file_ctx->is_pcap_offline =
(RunmodeGetCurrent() == RUNMODE_PCAP_FILE);
}
json_ctx->file_ctx->type = json_ctx->json_out;
}
SCLogDebug("returning output_ctx %p", output_ctx);
result.ctx = output_ctx;
result.ok = true;
return result;
}
