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119 lines
2.9 KiB
C
119 lines
2.9 KiB
C
/* Copyright (C) 2017-2018 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*
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* Implement JSON/eve logging app-layer SMB.
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*/
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#include "suricata-common.h"
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#include "debug.h"
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#include "pkt-var.h"
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#include "conf.h"
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#include "threads.h"
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#include "threadvars.h"
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#include "tm-threads.h"
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#include "util-unittest.h"
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#include "util-buffer.h"
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#include "util-debug.h"
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#include "util-byte.h"
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#include "output.h"
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#include "output-json.h"
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#include "app-layer.h"
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#include "app-layer-parser.h"
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#include "output-json-smb.h"
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#ifdef HAVE_LIBJANSSON
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#include "rust.h"
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#include "rust-smb-log-gen.h"
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json_t *JsonSMBAddMetadata(const Flow *f, uint64_t tx_id)
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{
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SMBState *state = FlowGetAppState(f);
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if (state) {
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SMBTransaction *tx = AppLayerParserGetTx(f->proto, ALPROTO_SMB, state, tx_id);
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if (tx) {
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return rs_smb_log_json_response(state, tx);
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}
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}
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return NULL;
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}
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static int JsonSMBLogger(ThreadVars *tv, void *thread_data,
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const Packet *p, Flow *f, void *state, void *tx, uint64_t tx_id)
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{
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OutputJsonThreadCtx *thread = thread_data;
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json_t *js, *smbjs;
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js = CreateJSONHeader(p, LOG_DIR_FLOW, "smb");
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if (unlikely(js == NULL)) {
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return TM_ECODE_FAILED;
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}
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smbjs = rs_smb_log_json_response(state, tx);
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if (unlikely(smbjs == NULL)) {
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goto error;
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}
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json_object_set_new(js, "smb", smbjs);
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MemBufferReset(thread->buffer);
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OutputJSONBuffer(js, thread->ctx->file_ctx, &thread->buffer);
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json_decref(js);
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return TM_ECODE_OK;
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error:
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json_decref(js);
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return TM_ECODE_FAILED;
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}
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static OutputInitResult SMBLogInitSub(ConfNode *conf, OutputCtx *parent_ctx)
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{
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AppLayerParserRegisterLogger(IPPROTO_TCP, ALPROTO_SMB);
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AppLayerParserRegisterLogger(IPPROTO_UDP, ALPROTO_SMB);
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return OutputJsonLogInitSub(conf, parent_ctx);
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}
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void JsonSMBLogRegister(void)
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{
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/* Register as an eve sub-module. */
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OutputRegisterTxSubModule(LOGGER_JSON_SMB, "eve-log", "JsonSMBLog",
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"eve-log.smb", SMBLogInitSub, ALPROTO_SMB,
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JsonSMBLogger, JsonLogThreadInit,
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JsonLogThreadDeinit, NULL);
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SCLogDebug("SMB JSON logger registered.");
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}
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#else /* No JSON support. */
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void JsonSMBLogRegister(void)
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{
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}
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#endif /* HAVE_LIBJANSSON */
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