/* Copyright (C) 2014-2021 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.

 */

/**

 * \file

 *

 * \author Victor Julien <victor@inliniac.net>

 *

 * Implements SSH JSON logging portion of the engine.

 */

#include "suricata-common.h"

#include "detect.h"

#include "pkt-var.h"

#include "conf.h"

#include "threads.h"

#include "threadvars.h"

#include "tm-threads.h"

#include "util-print.h"

#include "util-unittest.h"

#include "util-debug.h"

#include "app-layer-parser.h"

#include "output.h"

#include "app-layer-ssh.h"

#include "app-layer.h"

#include "util-privs.h"

#include "util-buffer.h"

#include "util-logopenfile.h"

#include "output-json.h"

#include "output-json-ssh.h"

#include "rust.h"

#define MODULE_NAME "LogSshLog"

static int JsonSshLogger(ThreadVars *tv, void *thread_data, const Packet *p,

                         Flow *f, void *state, void *txptr, uint64_t tx_id)

{

    OutputJsonThreadCtx *thread = thread_data;

    if (unlikely(state == NULL)) {

        return 0;

    }

    JsonBuilder *js = CreateEveHeaderWithTxId(p, LOG_DIR_FLOW, "ssh", NULL, tx_id, thread->ctx);

    if (unlikely(js == NULL))

        return 0;

    jb_open_object(js, "ssh");

    if (!rs_ssh_log_json(txptr, js)) {

        goto end;

    }

    jb_close(js);

    OutputJsonBuilderBuffer(js, thread);

end:

    jb_free(js);

    return 0;

}

static OutputInitResult OutputSshLogInitSub(ConfNode *conf, OutputCtx *parent_ctx)

{

    AppLayerParserRegisterLogger(IPPROTO_TCP, ALPROTO_SSH);

    return OutputJsonLogInitSub(conf, parent_ctx);

}

void JsonSshLogRegister (void)

{

    /* register as child of eve-log */

    OutputRegisterTxSubModuleWithCondition(LOGGER_JSON_TX, "eve-log", "JsonSshLog", "eve-log.ssh",

            OutputSshLogInitSub, ALPROTO_SSH, JsonSshLogger, SSHTxLogCondition, JsonLogThreadInit,

            JsonLogThreadDeinit, NULL);

}