--- /dev/null
+/* Copyright (C) 2018 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.
+ */
+
+// written by Pierre Chifflier <chifflier@wzdftpd.net>
+
+use json::*;
+use krb::krb5::{KRB5State,KRB5Transaction};
+
+#[no_mangle]
+pub extern "C" fn rs_krb5_log_json_response(_state: &mut KRB5State, tx: &mut KRB5Transaction) -> *mut JsonT
+{
+ let js = Json::object();
+ js.set_string("msg_type", &format!("{:?}", tx.msg_type));
+ // XXX PrincipalName object should be pretty-printed
+ let cname = match tx.cname {
+ Some(ref x) => format!("{}", x),
+ None => "<empty>".to_owned(),
+ };
+ let realm = match tx.realm {
+ Some(ref x) => format!("{}", x.0),
+ None => "<empty>".to_owned(),
+ };
+ // XXX PrincipalName object should be pretty-printed
+ let sname = match tx.sname {
+ Some(ref x) => format!("{}", x),
+ None => "<empty>".to_owned(),
+ };
+ let encryption = match tx.etype {
+ Some(ref x) => format!("{:?}", x),
+ None => "<none>".to_owned(),
+ };
+ js.set_string("cname", &cname);
+ js.set_string("realm", &realm);
+ js.set_string("sname", &sname);
+ js.set_string("encryption", &encryption);
+ return js.unwrap();
+}
+
--- /dev/null
+/* Copyright (C) 2018 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 Pierre Chifflier <chifflier@wzdftpd.net>
+ *
+ * Implement JSON/eve logging app-layer KRB5.
+ */
+
+#include "suricata-common.h"
+#include "debug.h"
+#include "detect.h"
+#include "pkt-var.h"
+#include "conf.h"
+
+#include "threads.h"
+#include "threadvars.h"
+#include "tm-threads.h"
+
+#include "util-unittest.h"
+#include "util-buffer.h"
+#include "util-debug.h"
+#include "util-byte.h"
+
+#include "output.h"
+#include "output-json.h"
+
+#include "app-layer.h"
+#include "app-layer-parser.h"
+
+#include "app-layer-krb5.h"
+#include "output-json-krb5.h"
+
+#ifdef HAVE_RUST
+#ifdef HAVE_LIBJANSSON
+
+#include "rust.h"
+#include "rust-krb-log-gen.h"
+
+typedef struct LogKRB5FileCtx_ {
+ LogFileCtx *file_ctx;
+ uint32_t flags;
+ bool include_metadata;
+} LogKRB5FileCtx;
+
+typedef struct LogKRB5LogThread_ {
+ LogKRB5FileCtx *krb5log_ctx;
+ uint32_t count;
+ MemBuffer *buffer;
+} LogKRB5LogThread;
+
+static int JsonKRB5Logger(ThreadVars *tv, void *thread_data,
+ const Packet *p, Flow *f, void *state, void *tx, uint64_t tx_id)
+{
+ KRB5Transaction *krb5tx = tx;
+ LogKRB5LogThread *thread = thread_data;
+ json_t *js, *krb5js;
+
+ js = CreateJSONHeader(p, LOG_DIR_PACKET, "krb5");
+ if (unlikely(js == NULL)) {
+ return TM_ECODE_FAILED;
+ }
+
+ if (thread->krb5log_ctx->include_metadata) {
+ JsonAddMetadata(p, f, js);
+ }
+
+ krb5js = rs_krb5_log_json_response(state, krb5tx);
+ if (unlikely(krb5js == NULL)) {
+ goto error;
+ }
+ json_object_set_new(js, "krb5", krb5js);
+
+ MemBufferReset(thread->buffer);
+ OutputJSONBuffer(js, thread->krb5log_ctx->file_ctx, &thread->buffer);
+
+ json_decref(js);
+ return TM_ECODE_OK;
+
+error:
+ json_decref(js);
+ return TM_ECODE_FAILED;
+}
+
+static void OutputKRB5LogDeInitCtxSub(OutputCtx *output_ctx)
+{
+ LogKRB5FileCtx *krb5log_ctx = (LogKRB5FileCtx *)output_ctx->data;
+ SCFree(krb5log_ctx);
+ SCFree(output_ctx);
+}
+
+static OutputInitResult OutputKRB5LogInitSub(ConfNode *conf,
+ OutputCtx *parent_ctx)
+{
+ OutputInitResult result = { NULL, false };
+ OutputJsonCtx *ajt = parent_ctx->data;
+
+ LogKRB5FileCtx *krb5log_ctx = SCCalloc(1, sizeof(*krb5log_ctx));
+ if (unlikely(krb5log_ctx == NULL)) {
+ return result;
+ }
+ krb5log_ctx->file_ctx = ajt->file_ctx;
+ krb5log_ctx->include_metadata = ajt->include_metadata;
+
+ OutputCtx *output_ctx = SCCalloc(1, sizeof(*output_ctx));
+ if (unlikely(output_ctx == NULL)) {
+ SCFree(krb5log_ctx);
+ return result;
+ }
+ output_ctx->data = krb5log_ctx;
+ output_ctx->DeInit = OutputKRB5LogDeInitCtxSub;
+
+ SCLogDebug("KRB5 log sub-module initialized.");
+
+ AppLayerParserRegisterLogger(IPPROTO_UDP, ALPROTO_KRB5);
+
+ result.ctx = output_ctx;
+ result.ok = true;
+ return result;
+}
+
+#define OUTPUT_BUFFER_SIZE 65535
+
+static TmEcode JsonKRB5LogThreadInit(ThreadVars *t, const void *initdata, void **data)
+{
+ LogKRB5LogThread *thread = SCCalloc(1, sizeof(*thread));
+ if (unlikely(thread == NULL)) {
+ return TM_ECODE_FAILED;
+ }
+
+ if (initdata == NULL) {
+ SCLogDebug("Error getting context for EveLogKRB5. \"initdata\" is NULL.");
+ SCFree(thread);
+ return TM_ECODE_FAILED;
+ }
+
+ thread->buffer = MemBufferCreateNew(OUTPUT_BUFFER_SIZE);
+ if (unlikely(thread->buffer == NULL)) {
+ SCFree(thread);
+ return TM_ECODE_FAILED;
+ }
+
+ thread->krb5log_ctx = ((OutputCtx *)initdata)->data;
+ *data = (void *)thread;
+
+ return TM_ECODE_OK;
+}
+
+static TmEcode JsonKRB5LogThreadDeinit(ThreadVars *t, void *data)
+{
+ LogKRB5LogThread *thread = (LogKRB5LogThread *)data;
+ if (thread == NULL) {
+ return TM_ECODE_OK;
+ }
+ if (thread->buffer != NULL) {
+ MemBufferFree(thread->buffer);
+ }
+ SCFree(thread);
+ return TM_ECODE_OK;
+}
+
+void JsonKRB5LogRegister(void)
+{
+ /* Register as an eve sub-module. */
+ OutputRegisterTxSubModule(LOGGER_JSON_KRB5, "eve-log", "JsonKRB5Log",
+ "eve-log.krb5", OutputKRB5LogInitSub, ALPROTO_KRB5,
+ JsonKRB5Logger, JsonKRB5LogThreadInit,
+ JsonKRB5LogThreadDeinit, NULL);
+
+ SCLogDebug("KRB5 JSON logger registered.");
+}
+
+#else /* No JSON support. */
+
+void JsonKRB5LogRegister(void)
+{
+}
+
+#endif /* HAVE_LIBJANSSON */
+#else /* No rust support. */
+
+void JsonKRB5LogRegister(void)
+{
+}
+
+#endif /* HAVE_RUST */
--- /dev/null
+/* Copyright (C) 2015 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 FirstName LastName <name@domain>
+ */
+
+#ifndef __OUTPUT_JSON_KRB5_H__
+#define __OUTPUT_JSON_KRB5_H__
+
+void JsonKRB5LogRegister(void);
+
+#endif /* __OUTPUT_JSON_KRB5_H__ */
projects / thirdparty / suricata.git / commitdiff
