int tox_bootstrap_from_address(Tox *tox, const char *address,
uint8_t ipv6enabled, uint16_t port, uint8_t *public_key)
{
Messenger *m = tox;
tox_add_tcp_relay(tox, address, ipv6enabled, port, public_key);
return DHT_bootstrap_from_address(m->dht, address, ipv6enabled, port, public_key);
}
int tox_bootstrap_from_address(Tox *tox, const char *address, uint16_t port, const uint8_t *public_key)
{
Messenger *m = tox;
int ret = tox_add_tcp_relay(tox, address, port, public_key);
if (m->options.udp_disabled) {
return ret;
} else { /* DHT only works on UDP. */
return DHT_bootstrap_from_address(m->dht, address, m->options.ipv6enabled, htons(port), public_key);
}
}
int main(int argc, char *argv[])
{
if (argc == 2 && !strncasecmp(argv[1], "-h", 3)) {
printf("Usage (connected) : %s [--ipv4|--ipv6] IP PORT KEY\n", argv[0]);
printf("Usage (unconnected): %s [--ipv4|--ipv6]\n", argv[0]);
exit(0);
}
/* let user override default by cmdline */
uint8_t ipv6enabled = TOX_ENABLE_IPV6_DEFAULT; /* x */
int argvoffset = cmdline_parsefor_ipv46(argc, argv, &ipv6enabled);
if (argvoffset < 0)
exit(1);
/* Initialize networking -
Bind to ip 0.0.0.0 / [::] : PORT */
IP ip;
ip_init(&ip, ipv6enabled);
DHT *dht = new_DHT(new_networking(ip, PORT));
Onion *onion = new_onion(dht);
Onion_Announce *onion_a = new_onion_announce(dht);
#ifdef DHT_NODE_EXTRA_PACKETS
bootstrap_set_callbacks(dht->net, DHT_VERSION_NUMBER, DHT_MOTD, sizeof(DHT_MOTD));
#endif
if (!(onion && onion_a)) {
printf("Something failed to initialize.\n");
exit(1);
}
perror("Initialization");
manage_keys(dht);
printf("Public key: ");
uint32_t i;
#ifdef TCP_RELAY_ENABLED
#define NUM_PORTS 3
uint16_t ports[NUM_PORTS] = {443, 3389, PORT};
TCP_Server *tcp_s = new_TCP_server(ipv6enabled, NUM_PORTS, ports, dht->self_public_key, dht->self_secret_key, onion);
if (tcp_s == NULL) {
printf("TCP server failed to initialize.\n");
exit(1);
}
#endif
FILE *file;
file = fopen("PUBLIC_ID.txt", "w");
for (i = 0; i < 32; i++) {
printf("%02hhX", dht->self_public_key[i]);
fprintf(file, "%02hhX", dht->self_public_key[i]);
}
fclose(file);
printf("\n");
printf("Port: %u\n", ntohs(dht->net->port));
if (argc > argvoffset + 3) {
printf("Trying to bootstrap into the network...\n");
uint16_t port = htons(atoi(argv[argvoffset + 2]));
uint8_t *bootstrap_key = hex_string_to_bin(argv[argvoffset + 3]);
int res = DHT_bootstrap_from_address(dht, argv[argvoffset + 1],
ipv6enabled, port, bootstrap_key);
free(bootstrap_key);
if (!res) {
printf("Failed to convert \"%s\" into an IP address. Exiting...\n", argv[argvoffset + 1]);
exit(1);
}
}
int is_waiting_for_dht_connection = 1;
uint64_t last_LANdiscovery = 0;
LANdiscovery_init(dht);
while (1) {
if (is_waiting_for_dht_connection && DHT_isconnected(dht)) {
printf("Connected to other bootstrap node successfully.\n");
is_waiting_for_dht_connection = 0;
}
do_DHT(dht);
if (is_timeout(last_LANdiscovery, is_waiting_for_dht_connection ? 5 : LAN_DISCOVERY_INTERVAL)) {
send_LANdiscovery(htons(PORT), dht);
last_LANdiscovery = unix_time();
}
#ifdef TCP_RELAY_ENABLED
do_TCP_server(tcp_s);
#endif
networking_poll(dht->net);
c_sleep(1);
}
return 0;
}
int bootstrap_from_config(char *cfg_file_path, DHT *dht, int enable_ipv6)
{
const char *NAME_BOOTSTRAP_SERVERS = "bootstrap_servers";
const char *NAME_PUBLIC_KEY = "public_key";
const char *NAME_PORT = "port";
const char *NAME_ADDRESS = "address";
config_t cfg;
config_init(&cfg);
if (config_read_file(&cfg, cfg_file_path) == CONFIG_FALSE) {
syslog(LOG_ERR, "%s:%d - %s\n", config_error_file(&cfg), config_error_line(&cfg), config_error_text(&cfg));
config_destroy(&cfg);
return 0;
}
config_setting_t *server_list = config_lookup(&cfg, NAME_BOOTSTRAP_SERVERS);
if (server_list == NULL) {
syslog(LOG_WARNING, "No '%s' setting in the configuration file. Skipping bootstrapping.\n", NAME_BOOTSTRAP_SERVERS);
config_destroy(&cfg);
return 1;
}
if (config_setting_length(server_list) == 0) {
syslog(LOG_WARNING, "No bootstrap servers found. Skipping bootstrapping.\n");
config_destroy(&cfg);
return 1;
}
int bs_port;
const char *bs_address;
const char *bs_public_key;
config_setting_t *server;
int i = 0;
while (config_setting_length(server_list)) {
server = config_setting_get_elem(server_list, 0);
if (server == NULL) {
config_destroy(&cfg);
return 0;
}
// Check that all settings are present
if (config_setting_lookup_string(server, NAME_PUBLIC_KEY, &bs_public_key) == CONFIG_FALSE) {
syslog(LOG_WARNING, "Bootstrap server #%d: Couldn't find '%s' setting. Skipping the server.\n", i, NAME_PUBLIC_KEY);
goto next;
}
if (config_setting_lookup_int(server, NAME_PORT, &bs_port) == CONFIG_FALSE) {
syslog(LOG_WARNING, "Bootstrap server #%d: Couldn't find '%s' setting. Skipping the server.\n", i, NAME_PORT);
goto next;
}
if (config_setting_lookup_string(server, NAME_ADDRESS, &bs_address) == CONFIG_FALSE) {
syslog(LOG_WARNING, "Bootstrap server #%d: Couldn't find '%s' setting. Skipping the server.\n", i, NAME_ADDRESS);
goto next;
}
// Process settings
if (strlen(bs_public_key) != 64) {
syslog(LOG_WARNING, "Bootstrap server #%d: Invalid '%s': %s. Skipping the server.\n", i, NAME_PUBLIC_KEY, bs_public_key);
goto next;
}
// not (1 <= port <= 65535)
if (bs_port < 1 || bs_port > 65535) {
syslog(LOG_WARNING, "Bootstrap server #%d: Invalid '%s': %d. Skipping the server.\n", i, NAME_PORT, bs_port);
goto next;
}
const int address_resolved = DHT_bootstrap_from_address(dht, bs_address, enable_ipv6, htons(bs_port),
hex_string_to_bin((char *)bs_public_key));
if (!address_resolved) {
syslog(LOG_WARNING, "Bootstrap server #%d: Invalid '%s': %s. Skipping the server.\n", i, NAME_ADDRESS, bs_address);
goto next;
}
syslog(LOG_DEBUG, "Successfully added bootstrap server #%d: %s:%d %s\n", i, bs_address, bs_port, bs_public_key);
next:
// config_setting_lookup_string() allocates string inside and doesn't allow us to free it
// so in order to reuse `bs_public_key` and `bs_address` we have to remove the element
// which will cause libconfig to free allocated strings
config_setting_remove_elem(server_list, 0);
i++;
}
config_destroy(&cfg);
return 1;
}
int main(int argc, char *argv[])
{
/* let user override default by cmdline */
uint8_t ipv6enabled = TOX_ENABLE_IPV6_DEFAULT; /* x */
int argvoffset = cmdline_parsefor_ipv46(argc, argv, &ipv6enabled);
if (argvoffset < 0)
exit(1);
/* with optional --ipvx, now it can be 1-4 arguments... */
if ((argc != argvoffset + 2) && (argc != argvoffset + 4)) {
printf("Usage: %s [--ipv4|--ipv6] ip port public_key (of the DHT bootstrap node)\n", argv[0]);
printf("or\n");
printf(" %s [--ipv4|--ipv6] Save.bak (to read Save.bak as state file)\n", argv[0]);
exit(0);
}
m = initMessenger(ipv6enabled);
if ( !m ) {
fputs("Failed to allocate messenger datastructure\n", stderr);
exit(0);
}
if (argc == argvoffset + 4) {
uint16_t port = htons(atoi(argv[argvoffset + 2]));
uint8_t *bootstrap_key = hex_string_to_bin(argv[argvoffset + 3]);
int res = DHT_bootstrap_from_address(m->dht, argv[argvoffset + 1],
ipv6enabled, port, bootstrap_key);
free(bootstrap_key);
if (!res) {
printf("Failed to convert \"%s\" into an IP address. Exiting...\n", argv[argvoffset + 1]);
exit(1);
}
} else {
FILE *file = fopen(argv[argvoffset + 1], "rb");
if ( file == NULL ) {
printf("Failed to open \"%s\" - does it exist?\n", argv[argvoffset + 1]);
return 1;
}
int read;
uint8_t buffer[128000];
read = fread(buffer, 1, 128000, file);
printf("Messenger loaded: %i\n", Messenger_load(m, buffer, read));
fclose(file);
}
m_callback_friendrequest(m, print_request, NULL);
m_callback_friendmessage(m, print_message, NULL);
printf("OUR ID: ");
uint32_t i;
uint8_t address[FRIEND_ADDRESS_SIZE];
getaddress(m, address);
for (i = 0; i < FRIEND_ADDRESS_SIZE; i++) {
if (address[i] < 16)
printf("0");
printf("%hhX", address[i]);
}
setname(m, (uint8_t *)"Anon", 5);
char temp_id[128];
printf("\nEnter the address of the friend you wish to add (38 bytes HEX format):\n");
if (scanf("%s", temp_id) != 1) {
return 1;
}
int num = m_addfriend(m, hex_string_to_bin(temp_id), (uint8_t *)"Install Gentoo", sizeof("Install Gentoo"));
perror("Initialization");
while (1) {
uint8_t name[128];
getname(m, num, name);
printf("%s\n", name);
m_sendmessage(m, num, (uint8_t *)"Test", 5);
doMessenger(m);
c_sleep(30);
FILE *file = fopen("Save.bak", "wb");
if ( file == NULL ) {
return 1;
}
uint8_t *buffer = malloc(Messenger_size(m));
Messenger_save(m, buffer);
size_t write_result = fwrite(buffer, 1, Messenger_size(m), file);
if (write_result < Messenger_size(m)) {
return 1;
}
free(buffer);
fclose(file);
}
cleanupMessenger(m);
}
int bootstrap_from_config(const char *cfg_file_path, DHT *dht, int enable_ipv6)
{
const char *NAME_BOOTSTRAP_NODES = "bootstrap_nodes";
const char *NAME_PUBLIC_KEY = "public_key";
const char *NAME_PORT = "port";
const char *NAME_ADDRESS = "address";
config_t cfg;
config_init(&cfg);
if (config_read_file(&cfg, cfg_file_path) == CONFIG_FALSE) {
syslog(LOG_ERR, "%s:%d - %s\n", config_error_file(&cfg), config_error_line(&cfg), config_error_text(&cfg));
config_destroy(&cfg);
return 0;
}
config_setting_t *node_list = config_lookup(&cfg, NAME_BOOTSTRAP_NODES);
if (node_list == NULL) {
syslog(LOG_WARNING, "No '%s' setting in the configuration file. Skipping bootstrapping.\n", NAME_BOOTSTRAP_NODES);
config_destroy(&cfg);
return 1;
}
if (config_setting_length(node_list) == 0) {
syslog(LOG_WARNING, "No bootstrap nodes found. Skipping bootstrapping.\n");
config_destroy(&cfg);
return 1;
}
int bs_port;
const char *bs_address;
const char *bs_public_key;
config_setting_t *node;
int i = 0;
while (config_setting_length(node_list)) {
node = config_setting_get_elem(node_list, 0);
if (node == NULL) {
config_destroy(&cfg);
return 0;
}
// Check that all settings are present
if (config_setting_lookup_string(node, NAME_PUBLIC_KEY, &bs_public_key) == CONFIG_FALSE) {
syslog(LOG_WARNING, "Bootstrap node #%d: Couldn't find '%s' setting. Skipping the node.\n", i, NAME_PUBLIC_KEY);
goto next;
}
if (config_setting_lookup_int(node, NAME_PORT, &bs_port) == CONFIG_FALSE) {
syslog(LOG_WARNING, "Bootstrap node #%d: Couldn't find '%s' setting. Skipping the node.\n", i, NAME_PORT);
goto next;
}
if (config_setting_lookup_string(node, NAME_ADDRESS, &bs_address) == CONFIG_FALSE) {
syslog(LOG_WARNING, "Bootstrap node #%d: Couldn't find '%s' setting. Skipping the node.\n", i, NAME_ADDRESS);
goto next;
}
// Process settings
if (strlen(bs_public_key) != crypto_box_PUBLICKEYBYTES * 2) {
syslog(LOG_WARNING, "Bootstrap node #%d: Invalid '%s': %s. Skipping the node.\n", i, NAME_PUBLIC_KEY,
bs_public_key);
goto next;
}
if (bs_port < MIN_ALLOWED_PORT || bs_port > MAX_ALLOWED_PORT) {
syslog(LOG_WARNING, "Bootstrap node #%d: Invalid '%s': %d, should be in [%d, %d]. Skipping the node.\n", i, NAME_PORT,
bs_port, MIN_ALLOWED_PORT, MAX_ALLOWED_PORT);
goto next;
}
uint8_t *bs_public_key_bin = hex_string_to_bin((char *)bs_public_key);
const int address_resolved = DHT_bootstrap_from_address(dht, bs_address, enable_ipv6, htons(bs_port),
bs_public_key_bin);
free(bs_public_key_bin);
if (!address_resolved) {
syslog(LOG_WARNING, "Bootstrap node #%d: Invalid '%s': %s. Skipping the node.\n", i, NAME_ADDRESS, bs_address);
goto next;
}
syslog(LOG_DEBUG, "Successfully added bootstrap node #%d: %s:%d %s\n", i, bs_address, bs_port, bs_public_key);
next:
// config_setting_lookup_string() allocates string inside and doesn't allow us to free it direcly
// though it's freed when the element is removed, so we free it right away in order to keep memory
// consumption minimal
config_setting_remove_elem(node_list, 0);
i++;
}
config_destroy(&cfg);
return 1;
}
int main(int argc, char *argv[])
{
if (argc == 2 && !strncasecmp(argv[1], "-h", 3)) {
printf("Usage (connected) : %s [--ipv4|--ipv6] IP PORT KEY\n", argv[0]);
printf("Usage (unconnected): %s [--ipv4|--ipv6]\n", argv[0]);
exit(0);
}
/* let user override default by cmdline */
uint8_t ipv6enabled = TOX_ENABLE_IPV6_DEFAULT; /* x */
int argvoffset = cmdline_parsefor_ipv46(argc, argv, &ipv6enabled);
if (argvoffset < 0)
exit(1);
/* Initialize networking -
Bind to ip 0.0.0.0 / [::] : PORT */
IP ip;
ip_init(&ip, ipv6enabled);
DHT *dht = new_DHT(new_net_crypto(new_networking(ip, PORT)));
perror("Initialization");
manage_keys(dht);
printf("Public key: ");
uint32_t i;
FILE *file;
file = fopen("PUBLIC_ID.txt", "w");
for (i = 0; i < 32; i++) {
if (dht->c->self_public_key[i] < 16)
printf("0");
printf("%hhX", dht->c->self_public_key[i]);
fprintf(file, "%hhX", dht->c->self_public_key[i]);
}
fclose(file);
printf("\n");
printf("Port: %u\n", ntohs(dht->c->lossless_udp->net->port));
if (argc > argvoffset + 3) {
printf("Trying to bootstrap into the network...\n");
uint16_t port = htons(atoi(argv[argvoffset + 2]));
uint8_t *bootstrap_key = hex_string_to_bin(argv[argvoffset + 3]);
int res = DHT_bootstrap_from_address(dht, argv[argvoffset + 1],
ipv6enabled, port, bootstrap_key);
free(bootstrap_key);
if (!res) {
printf("Failed to convert \"%s\" into an IP address. Exiting...\n", argv[argvoffset + 1]);
exit(1);
}
}
int is_waiting_for_dht_connection = 1;
uint64_t last_LANdiscovery = 0;
LANdiscovery_init(dht);
while (1) {
if (is_waiting_for_dht_connection && DHT_isconnected(dht)) {
printf("Connected to other bootstrap server successfully.\n");
is_waiting_for_dht_connection = 0;
}
do_DHT(dht);
if (last_LANdiscovery + (is_waiting_for_dht_connection ? 5 : LAN_DISCOVERY_INTERVAL) < unix_time()) {
send_LANdiscovery(htons(PORT), dht->c);
last_LANdiscovery = unix_time();
}
networking_poll(dht->c->lossless_udp->net);
c_sleep(1);
}
return 0;
}
int tox_bootstrap_from_address(Tox *tox, const char *address,
size_t ipv6enabled, size_t port, size_t *public_key)
{
Messenger *m = tox;
return DHT_bootstrap_from_address(m->dht, address, ipv6enabled, port, public_key);
};
