packet-edhoc.h

/* packet-cose.h
 * Definitions for Ephemeral Diffie-Hellman Over COSE (EDHOC) dissection
 * References:
 *     RFC 9528: https://tools.ietf.org/html/rfc9528
 *
 * Copyright 2024-2025, Brian Sipos <brian.sipos@gmail.com>
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */
#ifndef __PACKET_EDHOC_H__
#define __PACKET_EDHOC_H__
 
#include "packet-cose.h"
#include <epan/conversation.h>
#include <glib.h>
#include <stdint.h>
#include <stdbool.h>
 
typedef struct edhoc_state_t {
    conversation_t *conv;
    bool prepend_cid;
 
    wmem_list_t *session_list;
    wmem_tree_t *session_map;
} edhoc_state_t;
typedef struct edhoc_state_t {…};
 
typedef struct {
    edhoc_state_t *parent;
    uint64_t sess_idx;
 
    bool seen_msg1;
    uint32_t frame_msg1;
    bool seen_msg2;
    uint32_t frame_msg2;
    bool seen_msg3;
    uint32_t frame_msg3;
    bool seen_msg4;
    uint32_t frame_msg4;
 
    /* Errors can only be present after #seen_msg1 is true.
     * But they can be sent from either side of the session.
     */
    bool seen_error;
    uint32_t frame_error;
 
    int64_t method;
    int64_t suite;
    const struct edhoc_cs_s *found_cs;
    const cose_aead_props_t *aead_props;
    const cose_hash_props_t *hash_props;
    const cose_ecc_props_t *ecc_props;
 
    GBytes *gx_data;
    GBytes *prk_2e;
    GBytes *prk_3e2m;
    GBytes *prk_4e3m;
    GBytes *prk_out;
    GBytes *prk_exporter;
 
} edhoc_session_t;
typedef struct  {…};
 
edhoc_state_t * edhoc_state_new(conversation_t *conv);
 
void edhoc_state_free(edhoc_state_t *state);
 
GBytes * edhoc_exporter_kdf(const edhoc_session_t *sess, int64_t label, GBytes *ctx, size_t length);
 
#endif /* __PACKET_EDHOC_H__ */