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