/* SPDX-License-Identifier: GPL-3.0-or-later

 * Copyright © 2016-2020 The TokTok team.

 * Copyright © 2015 Tox project.

 */

#ifndef C_TOXCORE_TOXCORE_GROUP_ONION_ANNOUNCE_H

#define C_TOXCORE_TOXCORE_GROUP_ONION_ANNOUNCE_H

#include <stdint.h>

#include "attributes.h"

#include "crypto_core.h"

#include "group_announce.h"

#include "mem.h"

#include "onion_announce.h"

/**

 * Maximum size of an announce response packet when the GCA extra-data callback

 * is active.

 *

 * The 1 here is the `num_nodes` byte (`want_node_count=true`).

 */

#define GCA_ANNOUNCE_RESPONSE_MAX_SIZE \

    (ONION_ANNOUNCE_RESPONSE_MIN_SIZE \

     + 1 \

     + MAX_SENT_NODES * PACKED_NODE_SIZE_IP6 \

     + GCA_MAX_SENT_ANNOUNCES * GCA_ANNOUNCE_MAX_SIZE)

void gca_onion_init(GC_Announces_List *_Nonnull group_announce, Onion_Announce *_Nonnull onion_a);

int create_gca_announce_request(const Memory *_Nonnull mem, const Random *_Nonnull rng, uint8_t *_Nonnull packet, uint16_t max_packet_length, const uint8_t *_Nonnull dest_client_id,

                                const uint8_t *_Nonnull public_key, const uint8_t *_Nonnull secret_key, const uint8_t *_Nonnull ping_id, const uint8_t *_Nonnull client_id, const uint8_t *_Nonnull data_public_key,

                                uint64_t sendback_data, const uint8_t *_Nonnull gc_data, uint16_t gc_data_length);

#endif /* C_TOXCORE_TOXCORE_GROUP_ONION_ANNOUNCE_H */