1 files changed, 184 insertions, 0 deletions
diff --git a/src/output-json-http2.c b/src/output-json-http2.c
new file mode 100644
index 0000000..d762e76
--- /dev/null
+++ b/src/output-json-http2.c
@@ -0,0 +1,184 @@
+/* Copyright (C) 2020-2021 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 Philippe Antoine <p.antoine@catenacyber.fr>
+ *
+ * Implements HTTP2 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-http2.h"
+#include "app-layer.h"
+#include "util-privs.h"
+#include "util-buffer.h"
+
+#include "util-logopenfile.h"
+
+#include "output-json.h"
+#include "output-json-http2.h"
+#include "rust.h"
+
+#define MODULE_NAME "LogHttp2Log"
+
+typedef struct OutputHttp2Ctx_ {
+    OutputJsonCtx *eve_ctx;
+} OutputHttp2Ctx;
+
+
+typedef struct JsonHttp2LogThread_ {
+    OutputHttp2Ctx *http2log_ctx;
+    OutputJsonThreadCtx *ctx;
+} JsonHttp2LogThread;
+
+
+bool EveHTTP2AddMetadata(const Flow *f, uint64_t tx_id, JsonBuilder *jb)
+{
+    void *state = FlowGetAppState(f);
+    if (state) {
+        void *tx = AppLayerParserGetTx(f->proto, ALPROTO_HTTP2, state, tx_id);
+        if (tx) {
+            return rs_http2_log_json(tx, jb);
+        }
+    }
+    return false;
+}
+
+static int JsonHttp2Logger(ThreadVars *tv, void *thread_data, const Packet *p,
+                         Flow *f, void *state, void *txptr, uint64_t tx_id)
+{
+    JsonHttp2LogThread *aft = (JsonHttp2LogThread *)thread_data;
+
+    if (unlikely(state == NULL)) {
+        return 0;
+    }
+
+    JsonBuilder *js = CreateEveHeaderWithTxId(
+            p, LOG_DIR_FLOW, "http", NULL, tx_id, aft->http2log_ctx->eve_ctx);
+    if (unlikely(js == NULL))
+        return 0;
+
+    jb_open_object(js, "http");
+    if (!rs_http2_log_json(txptr, js)) {
+        goto end;
+    }
+    jb_close(js);
+    OutputJsonBuilderBuffer(js, aft->ctx);
+end:
+    jb_free(js);
+    return 0;
+}
+
+static TmEcode JsonHttp2LogThreadInit(ThreadVars *t, const void *initdata, void **data)
+{
+    JsonHttp2LogThread *aft = SCCalloc(1, sizeof(JsonHttp2LogThread));
+    if (unlikely(aft == NULL))
+        return TM_ECODE_FAILED;
+
+    if(initdata == NULL)
+    {
+        SCLogDebug("Error getting context for EveLogHTTP2.  \"initdata\" argument NULL");
+        goto error_exit;
+    }
+
+    /* Use the Output Context (file pointer and mutex) */
+    aft->http2log_ctx = ((OutputCtx *)initdata)->data;
+    aft->ctx = CreateEveThreadCtx(t, aft->http2log_ctx->eve_ctx);
+    if (!aft->ctx) {
+        goto error_exit;
+    }
+
+    *data = (void *)aft;
+    return TM_ECODE_OK;
+
+error_exit:
+    SCFree(aft);
+    return TM_ECODE_FAILED;
+}
+
+static TmEcode JsonHttp2LogThreadDeinit(ThreadVars *t, void *data)
+{
+    JsonHttp2LogThread *aft = (JsonHttp2LogThread *)data;
+    if (aft == NULL) {
+        return TM_ECODE_OK;
+    }
+
+    FreeEveThreadCtx(aft->ctx);
+    /* clear memory */
+    memset(aft, 0, sizeof(JsonHttp2LogThread));
+
+    SCFree(aft);
+    return TM_ECODE_OK;
+}
+
+static void OutputHttp2LogDeinitSub(OutputCtx *output_ctx)
+{
+    OutputHttp2Ctx *http2_ctx = output_ctx->data;
+    SCFree(http2_ctx);
+    SCFree(output_ctx);
+}
+
+static OutputInitResult OutputHttp2LogInitSub(ConfNode *conf, OutputCtx *parent_ctx)
+{
+    OutputInitResult result = { NULL, false };
+    OutputJsonCtx *ojc = parent_ctx->data;
+
+    OutputHttp2Ctx *http2_ctx = SCMalloc(sizeof(OutputHttp2Ctx));
+    if (unlikely(http2_ctx == NULL))
+        return result;
+
+    OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
+    if (unlikely(output_ctx == NULL)) {
+        SCFree(http2_ctx);
+        return result;
+    }
+
+    http2_ctx->eve_ctx = ojc;
+
+    output_ctx->data = http2_ctx;
+    output_ctx->DeInit = OutputHttp2LogDeinitSub;
+
+    AppLayerParserRegisterLogger(IPPROTO_TCP, ALPROTO_HTTP2);
+
+    result.ctx = output_ctx;
+    result.ok = true;
+    return result;
+}
+
+void JsonHttp2LogRegister (void)
+{
+    /* also register as child of eve-log */
+    OutputRegisterTxSubModuleWithProgress(LOGGER_JSON_TX, "eve-log", MODULE_NAME, "eve-log.http2",
+            OutputHttp2LogInitSub, ALPROTO_HTTP2, JsonHttp2Logger, HTTP2StateClosed,
+            HTTP2StateClosed, JsonHttp2LogThreadInit, JsonHttp2LogThreadDeinit, NULL);
+}