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/* Copyright (C) 2017-2021 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include "suricata-common.h"
#include "util-buffer.h"
#include "output.h"
#include "output-json.h"
#include "app-layer-parser.h"
#include "output-json-dcerpc.h"
#include "rust.h"
static int JsonDCERPCLogger(ThreadVars *tv, void *thread_data,
const Packet *p, Flow *f, void *state, void *tx, uint64_t tx_id)
{
OutputJsonThreadCtx *thread = thread_data;
JsonBuilder *jb = CreateEveHeader(p, LOG_DIR_FLOW, "dcerpc", NULL, thread->ctx);
if (unlikely(jb == NULL)) {
return TM_ECODE_FAILED;
}
jb_open_object(jb, "dcerpc");
if (p->proto == IPPROTO_TCP) {
if (!rs_dcerpc_log_json_record_tcp(state, tx, jb)) {
goto error;
}
} else {
if (!rs_dcerpc_log_json_record_udp(state, tx, jb)) {
goto error;
}
}
jb_close(jb);
MemBufferReset(thread->buffer);
OutputJsonBuilderBuffer(jb, thread);
jb_free(jb);
return TM_ECODE_OK;
error:
jb_free(jb);
return TM_ECODE_FAILED;
}
static OutputInitResult DCERPCLogInitSub(ConfNode *conf, OutputCtx *parent_ctx)
{
AppLayerParserRegisterLogger(IPPROTO_TCP, ALPROTO_DCERPC);
AppLayerParserRegisterLogger(IPPROTO_UDP, ALPROTO_DCERPC);
return OutputJsonLogInitSub(conf, parent_ctx);
}
void JsonDCERPCLogRegister(void)
{
/* Register as an eve sub-module. */
OutputRegisterTxSubModule(LOGGER_JSON_TX, "eve-log", "JsonDCERPCLog", "eve-log.dcerpc",
DCERPCLogInitSub, ALPROTO_DCERPC, JsonDCERPCLogger, JsonLogThreadInit,
JsonLogThreadDeinit, NULL);
SCLogDebug("DCERPC JSON logger registered.");
}
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