mirror of https://github.com/OISF/suricata
Add logger for IKEv2
Pierre Chifflier
9 years ago
committed by
Victor Julien
parent
d16397ce61
commit
d94346282c
@ -0,0 +1,57 @@
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/* Copyright (C) 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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// written by Pierre Chifflier <chifflier@wzdftpd.net>
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use json::*;
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use ikev2::ikev2::{IKEV2State,IKEV2Transaction};
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use ikev2::ipsec_parser::IKEV2_FLAG_INITIATOR;
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#[no_mangle]
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pub extern "C" fn rs_ikev2_log_json_response(state: &mut IKEV2State, tx: &mut IKEV2Transaction) -> *mut JsonT
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{
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let js = Json::object();
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js.set_integer("version_major", tx.hdr.maj_ver as u64);
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js.set_integer("version_minor", tx.hdr.min_ver as u64);
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js.set_integer("exchange_type", tx.hdr.exch_type.0 as u64);
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js.set_integer("message_id", tx.hdr.msg_id as u64);
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js.set_string("init_spi", &format!("{:016x}", tx.hdr.init_spi));
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js.set_string("resp_spi", &format!("{:016x}", tx.hdr.resp_spi));
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if tx.hdr.flags & IKEV2_FLAG_INITIATOR != 0 {
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js.set_string("role", &"initiator");
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} else {
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js.set_string("role", &"responder");
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js.set_string("alg_enc", &format!("{:?}", state.alg_enc));
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js.set_string("alg_auth", &format!("{:?}", state.alg_auth));
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js.set_string("alg_prf", &format!("{:?}", state.alg_prf));
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js.set_string("alg_dh", &format!("{:?}", state.alg_dh));
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js.set_string("alg_esn", &format!("{:?}", state.alg_esn));
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}
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js.set_integer("errors", tx.errors as u64);
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let payload_list : Vec<String> = tx.payload_types.iter()
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.map(|x| format!("{:?}", x.0)) // XXX x.0 until we have a Debug trait for IkePayloadType
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.collect();
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let payload_list = payload_list.join(",");
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js.set_string("payload_list", &payload_list);
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let notify_list : Vec<String> = tx.notify_types.iter()
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.map(|x| format!("{:?}", x))
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.collect();
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let notify_list = notify_list.join(",");
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js.set_string("notify_list", ¬ify_list);
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return js.unwrap();
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}
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@ -0,0 +1,202 @@
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/* Copyright (C) 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 Pierre Chifflier <chifflier@wzdftpd.net>
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*
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* Implement JSON/eve logging app-layer IKEv2.
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*/
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#include "suricata-common.h"
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#include "debug.h"
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#include "detect.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 "app-layer-ikev2.h"
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#include "output-json-ikev2.h"
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#if defined(HAVE_RUST) && defined(HAVE_RUST_EXTERNAL)
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#ifdef HAVE_LIBJANSSON
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#include "rust.h"
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#include "rust-ikev2-log-gen.h"
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typedef struct LogIKEv2FileCtx_ {
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LogFileCtx *file_ctx;
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uint32_t flags;
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bool include_metadata;
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} LogIKEv2FileCtx;
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typedef struct LogIKEv2LogThread_ {
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LogIKEv2FileCtx *ikev2log_ctx;
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uint32_t count;
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MemBuffer *buffer;
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} LogIKEv2LogThread;
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static int JsonIKEv2Logger(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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IKEV2Transaction *ikev2tx = tx;
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LogIKEv2LogThread *thread = thread_data;
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json_t *js, *ikev2js;
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js = CreateJSONHeader((Packet *)p, 0, "ikev2");
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if (unlikely(js == NULL)) {
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return TM_ECODE_FAILED;
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}
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if (thread->ikev2log_ctx->include_metadata) {
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JsonAddMetadata(p, f, js);
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}
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ikev2js = rs_ikev2_log_json_response(state, ikev2tx);
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if (unlikely(ikev2js == NULL)) {
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goto error;
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}
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json_object_set_new(js, "ikev2", ikev2js);
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MemBufferReset(thread->buffer);
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OutputJSONBuffer(js, thread->ikev2log_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 void OutputIKEv2LogDeInitCtxSub(OutputCtx *output_ctx)
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{
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LogIKEv2FileCtx *ikev2log_ctx = (LogIKEv2FileCtx *)output_ctx->data;
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SCFree(ikev2log_ctx);
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SCFree(output_ctx);
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}
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static OutputInitResult OutputIKEv2LogInitSub(ConfNode *conf,
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OutputCtx *parent_ctx)
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{
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OutputInitResult result = { NULL, false };
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OutputJsonCtx *ajt = parent_ctx->data;
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LogIKEv2FileCtx *ikev2log_ctx = SCCalloc(1, sizeof(*ikev2log_ctx));
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if (unlikely(ikev2log_ctx == NULL)) {
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return result;
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}
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ikev2log_ctx->file_ctx = ajt->file_ctx;
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ikev2log_ctx->include_metadata = ajt->include_metadata;
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OutputCtx *output_ctx = SCCalloc(1, sizeof(*output_ctx));
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if (unlikely(output_ctx == NULL)) {
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SCFree(ikev2log_ctx);
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return result;
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}
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output_ctx->data = ikev2log_ctx;
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output_ctx->DeInit = OutputIKEv2LogDeInitCtxSub;
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SCLogDebug("IKEv2 log sub-module initialized.");
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AppLayerParserRegisterLogger(IPPROTO_UDP, ALPROTO_IKEV2);
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result.ctx = output_ctx;
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result.ok = true;
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return result;
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}
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#define OUTPUT_BUFFER_SIZE 65535
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static TmEcode JsonIKEv2LogThreadInit(ThreadVars *t, const void *initdata, void **data)
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{
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LogIKEv2LogThread *thread = SCCalloc(1, sizeof(*thread));
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if (unlikely(thread == NULL)) {
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return TM_ECODE_FAILED;
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}
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if (initdata == NULL) {
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SCLogDebug("Error getting context for EveLogIKEv2. \"initdata\" is NULL.");
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SCFree(thread);
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return TM_ECODE_FAILED;
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}
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thread->buffer = MemBufferCreateNew(OUTPUT_BUFFER_SIZE);
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if (unlikely(thread->buffer == NULL)) {
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SCFree(thread);
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return TM_ECODE_FAILED;
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}
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thread->ikev2log_ctx = ((OutputCtx *)initdata)->data;
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*data = (void *)thread;
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return TM_ECODE_OK;
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}
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static TmEcode JsonIKEv2LogThreadDeinit(ThreadVars *t, void *data)
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{
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LogIKEv2LogThread *thread = (LogIKEv2LogThread *)data;
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if (thread == NULL) {
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return TM_ECODE_OK;
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}
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if (thread->buffer != NULL) {
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MemBufferFree(thread->buffer);
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}
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SCFree(thread);
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return TM_ECODE_OK;
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}
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void JsonIKEv2LogRegister(void)
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{
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/* Register as an eve sub-module. */
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OutputRegisterTxSubModule(LOGGER_JSON_IKEV2, "eve-log", "JsonIKEv2Log",
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"eve-log.ikev2", OutputIKEv2LogInitSub, ALPROTO_IKEV2,
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JsonIKEv2Logger, JsonIKEv2LogThreadInit,
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JsonIKEv2LogThreadDeinit, NULL);
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SCLogDebug("IKEv2 JSON logger registered.");
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}
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#else /* No JSON support. */
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void JsonIKEv2LogRegister(void)
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{
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}
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#endif /* HAVE_LIBJANSSON */
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#else /* No rust support. */
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void JsonIKEv2LogRegister(void)
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{
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}
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#endif /* HAVE_RUST */
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@ -0,0 +1,29 @@
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/* Copyright (C) 2015 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 Pierre Chifflier <chifflier@wzdftpd.net>
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*/
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#ifndef __OUTPUT_JSON_IKEV2_H__
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#define __OUTPUT_JSON_IKEV2_H__
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void JsonIKEv2LogRegister(void);
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#endif /* __OUTPUT_JSON_IKEV2_H__ */
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