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/* SPDX-License-Identifier: GPL-3.0-or-later
* Copyright © 2016-2018 The TokTok team.
* Copyright © 2013 Tox project.
*/
/*
* Special bootstrap node only packets.
*
* Include it in your bootstrap node and use: bootstrap_set_callbacks() to enable.
*/
#include "bootstrap_node_packets.h"
#include <string.h>
#define INFO_REQUEST_PACKET_LENGTH 78
static uint32_t bootstrap_version;
static uint8_t bootstrap_motd[MAX_MOTD_LENGTH];
static uint16_t bootstrap_motd_length;
/* To request this packet just send a packet of length INFO_REQUEST_PACKET_LENGTH
* with the first byte being BOOTSTRAP_INFO_PACKET_ID
*/
static int handle_info_request(void *object, IP_Port source, const uint8_t *packet, uint16_t length, void *userdata)
{
if (length != INFO_REQUEST_PACKET_LENGTH) {
return 1;
}
Networking_Core *nc = (Networking_Core *)object;
uint8_t data[1 + sizeof(bootstrap_version) + MAX_MOTD_LENGTH];
data[0] = BOOTSTRAP_INFO_PACKET_ID;
memcpy(data + 1, &bootstrap_version, sizeof(bootstrap_version));
uint16_t len = 1 + sizeof(bootstrap_version) + bootstrap_motd_length;
memcpy(data + 1 + sizeof(bootstrap_version), bootstrap_motd, bootstrap_motd_length);
if (sendpacket(nc, source, data, len) == len) {
return 0;
}
return 1;
}
int bootstrap_set_callbacks(Networking_Core *net, uint32_t version, uint8_t *motd, uint16_t motd_length)
{
if (motd_length > MAX_MOTD_LENGTH) {
return -1;
}
bootstrap_version = net_htonl(version);
memcpy(bootstrap_motd, motd, motd_length);
bootstrap_motd_length = motd_length;
networking_registerhandler(net, BOOTSTRAP_INFO_PACKET_ID, &handle_info_request, net);
return 0;
}
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