1 files changed, 117 insertions, 0 deletions
diff --git a/src/output-json-nfs.c b/src/output-json-nfs.c
new file mode 100644
index 0000000..946f85c
--- /dev/null
+++ b/src/output-json-nfs.c
@@ -0,0 +1,117 @@
+/* Copyright (C) 2015-2021 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>
+ *
+ * Implement JSON/eve logging app-layer NFS.
+ */
+
+#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-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 "output-json-nfs.h"
+
+#include "rust.h"
+
+bool EveNFSAddMetadataRPC(const Flow *f, uint64_t tx_id, JsonBuilder *jb)
+{
+    NFSState *state = FlowGetAppState(f);
+    if (state) {
+        NFSTransaction *tx = AppLayerParserGetTx(f->proto, ALPROTO_NFS, state, tx_id);
+        if (tx) {
+            return rs_rpc_log_json_response(tx, jb);
+        }
+    }
+    return false;
+}
+
+bool EveNFSAddMetadata(const Flow *f, uint64_t tx_id, JsonBuilder *jb)
+{
+    NFSState *state = FlowGetAppState(f);
+    if (state) {
+        NFSTransaction *tx = AppLayerParserGetTx(f->proto, ALPROTO_NFS, state, tx_id);
+        if (tx) {
+            return rs_nfs_log_json_response(state, tx, jb);
+        }
+    }
+    return false;
+}
+
+static int JsonNFSLogger(ThreadVars *tv, void *thread_data,
+    const Packet *p, Flow *f, void *state, void *tx, uint64_t tx_id)
+{
+    NFSTransaction *nfstx = tx;
+    OutputJsonThreadCtx *thread = thread_data;
+
+    if (rs_nfs_tx_logging_is_filtered(state, nfstx))
+        return TM_ECODE_OK;
+
+    JsonBuilder *jb = CreateEveHeader(p, LOG_DIR_PACKET, "nfs", NULL, thread->ctx);
+    if (unlikely(jb == NULL)) {
+        return TM_ECODE_OK;
+    }
+
+    jb_open_object(jb, "rpc");
+    rs_rpc_log_json_response(tx, jb);
+    jb_close(jb);
+
+    jb_open_object(jb, "nfs");
+    rs_nfs_log_json_response(state, tx, jb);
+    jb_close(jb);
+
+    MemBufferReset(thread->buffer);
+    OutputJsonBuilderBuffer(jb, thread);
+    jb_free(jb);
+    return TM_ECODE_OK;
+}
+
+static OutputInitResult NFSLogInitSub(ConfNode *conf,
+    OutputCtx *parent_ctx)
+{
+    AppLayerParserRegisterLogger(IPPROTO_TCP, ALPROTO_NFS);
+    AppLayerParserRegisterLogger(IPPROTO_UDP, ALPROTO_NFS);
+    return OutputJsonLogInitSub(conf, parent_ctx);
+}
+
+void JsonNFSLogRegister(void)
+{
+    /* Register as an eve sub-module. */
+    OutputRegisterTxSubModule(LOGGER_JSON_TX, "eve-log", "JsonNFSLog", "eve-log.nfs", NFSLogInitSub,
+            ALPROTO_NFS, JsonNFSLogger, JsonLogThreadInit, JsonLogThreadDeinit, NULL);
+
+    SCLogDebug("NFS JSON logger registered.");
+}