forked from osmocom/wireshark
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/* packet-quic.h
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __PACKET_QUIC_H__
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#define __PACKET_QUIC_H__
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include "ws_symbol_export.h"
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#include <wsutil/wsgcrypt.h> /* needed to define HAVE_LIBGCRYPT_AEAD */
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/**
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* Metadata for a STREAM frame.
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* https://tools.ietf.org/html/draft-ietf-quic-transport-23#section-19.8
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*/
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typedef struct _quic_stream_info {
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guint64 stream_id; /**< 62-bit Stream ID. */
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guint64 stream_offset; /**< 62-bit stream offset. */
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guint32 offset; /**< Offset within the stream (different for reassembled data). */
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struct quic_info_data *quic_info; /**< Opaque data structure to find the QUIC session. */
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gboolean from_server;
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} quic_stream_info;
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/*
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* Although the QUIC SCID/DCID length field can store at most 255, v1 limits the
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* CID length to 20.
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*/
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#define QUIC_MAX_CID_LENGTH 20
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typedef struct quic_cid {
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guint8 len;
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guint8 cid[QUIC_MAX_CID_LENGTH];
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} quic_cid_t;
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/**
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* Obtain Stream Type from a Stream ID.
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* https://tools.ietf.org/html/draft-ietf-quic-transport-23#section-2.1
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*/
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#define QUIC_STREAM_TYPE(stream_id) ((stream_id) & 3U)
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#define QUIC_STREAM_CLIENT_BIDI 0
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#define QUIC_STREAM_SERVER_BIDI 1
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#define QUIC_STREAM_CLIENT_UNI 2
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#define QUIC_STREAM_SERVER_UNI 3
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/** Set/Get protocol-specific data for the QUIC STREAM. */
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#ifdef HAVE_LIBGCRYPT_AEAD
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void quic_stream_add_proto_data(struct _packet_info *pinfo, quic_stream_info *stream_info, void *proto_data);
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void *quic_stream_get_proto_data(struct _packet_info *pinfo, quic_stream_info *stream_info);
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#endif /* HAVE_LIBGCRYPT_AEAD */
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/** Returns the number of items for quic.connection.number. */
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WS_DLL_PUBLIC guint32 get_quic_connections_count(void);
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typedef struct gquic_info_data {
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guint8 version;
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gboolean version_valid;
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gboolean encoding;
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guint16 server_port;
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} gquic_info_data_t;
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int
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dissect_gquic_frame_type(tvbuff_t *tvb, packet_info *pinfo, proto_tree *gquic_tree, guint offset, guint8 len_pkn, gquic_info_data_t *gquic_info);
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guint32
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dissect_gquic_tags(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ft_tree, guint offset);
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void
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quic_add_connection(packet_info *pinfo, const quic_cid_t *cid);
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void
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quic_add_loss_bits(packet_info *pinfo, guint64 value);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __PACKET_QUIC_H__ */
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