1 files changed, 64 insertions, 0 deletions
diff --git a/src/dnswire/decoder.h b/src/dnswire/decoder.h
new file mode 100644
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--- /dev/null
+++ b/src/dnswire/decoder.h
@@ -0,0 +1,64 @@
+/*
+ * Author Jerry Lundström <jerry@dns-oarc.net>
+ * Copyright (c) 2019, OARC, Inc.
+ * All rights reserved.
+ *
+ * This file is part of the dnswire library.
+ *
+ * dnswire library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * dnswire library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with dnswire library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <dnswire/dnswire.h>
+#include <dnswire/dnstap.h>
+
+#include <tinyframe/tinyframe.h>
+
+#ifndef __dnswire_h_decoder
+#define __dnswire_h_decoder 1
+
+enum dnswire_decoder_state {
+    dnswire_decoder_reading_control = 0,
+    dnswire_decoder_checking_ready  = 1,
+    dnswire_decoder_checking_accept = 2,
+    dnswire_decoder_reading_start   = 3,
+    dnswire_decoder_checking_start  = 4,
+    dnswire_decoder_reading_frames  = 5,
+    dnswire_decoder_checking_finish = 6,
+    dnswire_decoder_done            = 7,
+};
+extern const char* const dnswire_decoder_state_string[];
+
+struct dnswire_decoder {
+    enum dnswire_decoder_state state;
+    struct tinyframe_reader    reader;
+    struct dnstap              dnstap;
+
+    unsigned ready_support_dnstap_protobuf : 1;
+    unsigned accept_support_dnstap_protobuf : 1;
+};
+
+#define DNSWIRE_DECODER_INITIALIZER                \
+    {                                              \
+        .state  = dnswire_decoder_reading_control, \
+        .reader = TINYFRAME_READER_INITIALIZER,    \
+        .dnstap = DNSTAP_INITIALIZER,              \
+    }
+
+#define dnswire_decoder_decoded(d) (d).reader.bytes_read
+#define dnswire_decoder_dnstap(d) (&(d).dnstap)
+#define dnswire_decoder_cleanup(d) dnstap_cleanup(&(d).dnstap)
+
+enum dnswire_result dnswire_decoder_decode(struct dnswire_decoder*, const uint8_t*, size_t);
+
+#endif