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/*
* 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
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