static int handle_new_connections(void *object, New_Connection *n_c)
{
Friend_Connections *fr_c = object;
int friendcon_id = getfriend_conn_id_pk(fr_c, n_c->public_key);
Friend_Conn *friend_con = get_conn(fr_c, friendcon_id);
if (friend_con) {
if (friend_con->crypt_connection_id != -1)
return -1;
int id = accept_crypto_connection(fr_c->net_crypto, n_c);
connection_status_handler(fr_c->net_crypto, id, &handle_status, fr_c, friendcon_id);
connection_data_handler(fr_c->net_crypto, id, &handle_packet, fr_c, friendcon_id);
connection_lossy_data_handler(fr_c->net_crypto, id, &handle_lossy_packet, fr_c, friendcon_id);
friend_con->crypt_connection_id = id;
if (n_c->source.ip.family != AF_INET && n_c->source.ip.family != AF_INET6) {
set_direct_ip_port(fr_c->net_crypto, friend_con->crypt_connection_id, friend_con->dht_ip_port);
} else {
friend_con->dht_ip_port = n_c->source;
friend_con->dht_ip_port_lastrecv = unix_time();
}
dht_pk_callback(fr_c, friendcon_id, n_c->dht_public_key);
nc_dht_pk_callback(fr_c->net_crypto, id, &dht_pk_callback, fr_c, friendcon_id);
return 0;
}
return -1;
}
/* main friend_connections loop. */
void do_friend_connections(Friend_Connections *fr_c, void *userdata)
{
const uint64_t temp_time = mono_time_get(fr_c->mono_time);
for (uint32_t i = 0; i < fr_c->num_cons; ++i) {
Friend_Conn *const friend_con = get_conn(fr_c, i);
if (friend_con) {
if (friend_con->status == FRIENDCONN_STATUS_CONNECTING) {
if (friend_con->dht_pk_lastrecv + FRIEND_DHT_TIMEOUT < temp_time) {
if (friend_con->dht_lock) {
dht_delfriend(fr_c->dht, friend_con->dht_temp_pk, friend_con->dht_lock);
friend_con->dht_lock = 0;
memset(friend_con->dht_temp_pk, 0, CRYPTO_PUBLIC_KEY_SIZE);
}
}
if (friend_con->dht_ip_port_lastrecv + FRIEND_DHT_TIMEOUT < temp_time) {
friend_con->dht_ip_port.ip.family = net_family_unspec;
}
if (friend_con->dht_lock) {
if (friend_new_connection(fr_c, i) == 0) {
set_direct_ip_port(fr_c->net_crypto, friend_con->crypt_connection_id, friend_con->dht_ip_port, 0);
connect_to_saved_tcp_relays(fr_c, i, (MAX_FRIEND_TCP_CONNECTIONS / 2)); /* Only fill it half up. */
}
}
} else if (friend_con->status == FRIENDCONN_STATUS_CONNECTED) {
if (friend_con->ping_lastsent + FRIEND_PING_INTERVAL < temp_time) {
send_ping(fr_c, i);
}
if (friend_con->share_relays_lastsent + SHARE_RELAYS_INTERVAL < temp_time) {
send_relays(fr_c, i);
}
if (friend_con->ping_lastrecv + FRIEND_CONNECTION_TIMEOUT < temp_time) {
/* If we stopped receiving ping packets, kill it. */
crypto_kill(fr_c->net_crypto, friend_con->crypt_connection_id);
friend_con->crypt_connection_id = -1;
handle_status(fr_c, i, 0, userdata); /* Going offline. */
}
}
}
}
if (fr_c->local_discovery_enabled) {
lan_discovery(fr_c);
}
}
/* main friend_connections loop. */
void do_friend_connections(Friend_Connections *fr_c)
{
uint32_t i;
uint64_t temp_time = unix_time();
for (i = 0; i < fr_c->num_cons; ++i) {
Friend_Conn *friend_con = get_conn(fr_c, i);
if (friend_con) {
if (friend_con->status == FRIENDCONN_STATUS_CONNECTING) {
if (friend_con->dht_pk_lastrecv + FRIEND_DHT_TIMEOUT < temp_time) {
if (friend_con->dht_lock) {
DHT_delfriend(fr_c->dht, friend_con->dht_temp_pk, friend_con->dht_lock);
friend_con->dht_lock = 0;
}
}
if (friend_con->dht_ip_port_lastrecv + FRIEND_DHT_TIMEOUT < temp_time) {
friend_con->dht_ip_port.ip.family = 0;
}
if (friend_con->dht_lock) {
if (friend_new_connection(fr_c, i) == 0) {
set_direct_ip_port(fr_c->net_crypto, friend_con->crypt_connection_id, friend_con->dht_ip_port, 0);
connect_to_saved_tcp_relays(fr_c, i, (MAX_FRIEND_TCP_CONNECTIONS / 2)); /* Only fill it half up. */
}
}
} else if (friend_con->status == FRIENDCONN_STATUS_CONNECTED) {
if (friend_con->ping_lastsent + FRIEND_PING_INTERVAL < temp_time) {
send_ping(fr_c, i);
}
if (friend_con->share_relays_lastsent + SHARE_RELAYS_INTERVAL < temp_time) {
send_relays(fr_c, i);
}
if (friend_con->ping_lastrecv + FRIEND_CONNECTION_TIMEOUT < temp_time) {
/* If we stopped receiving ping packets, kill it. */
crypto_kill(fr_c->net_crypto, friend_con->crypt_connection_id);
friend_con->crypt_connection_id = -1;
handle_status(fr_c, i, 0); /* Going offline. */
}
}
}
}
LANdiscovery(fr_c);
}
/* Callback for DHT ip_port changes. */
static void dht_ip_callback(void *object, int32_t number, IP_Port ip_port)
{
Friend_Connections *fr_c = object;
Friend_Conn *friend_con = get_conn(fr_c, number);
if (!friend_con)
return;
if (friend_con->crypt_connection_id == -1) {
friend_new_connection(fr_c, number);
}
set_direct_ip_port(fr_c->net_crypto, friend_con->crypt_connection_id, ip_port);
friend_con->dht_ip_port = ip_port;
friend_con->dht_ip_port_lastrecv = unix_time();
}
/* main friend_connections loop. */
void do_friend_connections(Friend_Connections *fr_c)
{
uint32_t i;
uint64_t temp_time = unix_time();
for (i = 0; i < fr_c->num_cons; ++i) {
Friend_Conn *friend_con = get_conn(fr_c, i);
if (friend_con) {
if (friend_con->status == FRIENDCONN_STATUS_CONNECTING) {
if (friend_con->dht_ping_lastrecv + FRIEND_DHT_TIMEOUT < temp_time) {
if (friend_con->dht_lock) {
DHT_delfriend(fr_c->dht, friend_con->dht_temp_pk, friend_con->dht_lock);
friend_con->dht_lock = 0;
}
}
if (friend_con->dht_ip_port_lastrecv + FRIEND_DHT_TIMEOUT < temp_time) {
friend_con->dht_ip_port.ip.family = 0;
}
if (friend_con->dht_lock) {
if (friend_new_connection(fr_c, i) == 0) {
set_connection_dht_public_key(fr_c->net_crypto, friend_con->crypt_connection_id, friend_con->dht_temp_pk);
set_direct_ip_port(fr_c->net_crypto, friend_con->crypt_connection_id, friend_con->dht_ip_port);
}
}
} else if (friend_con->status == FRIENDCONN_STATUS_CONNECTED) {
if (friend_con->ping_lastsent + FRIEND_PING_INTERVAL < temp_time) {
send_ping(fr_c, i);
}
if (friend_con->ping_lastrecv + FRIEND_CONNECTION_TIMEOUT < temp_time) {
/* If we stopped receiving ping packets, kill it. */
crypto_kill(fr_c->net_crypto, friend_con->crypt_connection_id);
friend_con->crypt_connection_id = -1;
handle_status(fr_c, i, 0); /* Going offline. */
}
}
}
}
}
static int handle_new_connections(void *object, New_Connection *n_c)
{
Friend_Connections *const fr_c = (Friend_Connections *)object;
const int friendcon_id = getfriend_conn_id_pk(fr_c, n_c->public_key);
Friend_Conn *const friend_con = get_conn(fr_c, friendcon_id);
if (!friend_con) {
return -1;
}
if (friend_con->crypt_connection_id != -1) {
return -1;
}
const int id = accept_crypto_connection(fr_c->net_crypto, n_c);
if (id == -1) {
return -1;
}
connection_status_handler(fr_c->net_crypto, id, &handle_status, fr_c, friendcon_id);
connection_data_handler(fr_c->net_crypto, id, &handle_packet, fr_c, friendcon_id);
connection_lossy_data_handler(fr_c->net_crypto, id, &handle_lossy_packet, fr_c, friendcon_id);
friend_con->crypt_connection_id = id;
if (!net_family_is_ipv4(n_c->source.ip.family) && !net_family_is_ipv6(n_c->source.ip.family)) {
set_direct_ip_port(fr_c->net_crypto, friend_con->crypt_connection_id, friend_con->dht_ip_port, 0);
} else {
friend_con->dht_ip_port = n_c->source;
friend_con->dht_ip_port_lastrecv = mono_time_get(fr_c->mono_time);
}
if (public_key_cmp(friend_con->dht_temp_pk, n_c->dht_public_key) != 0) {
change_dht_pk(fr_c, friendcon_id, n_c->dht_public_key);
}
nc_dht_pk_callback(fr_c->net_crypto, id, &dht_pk_callback, fr_c, friendcon_id);
return 0;
}
/* Callback for DHT ip_port changes. */
static void dht_ip_callback(void *object, int32_t number, IP_Port ip_port)
{
Friend_Connections *const fr_c = (Friend_Connections *)object;
Friend_Conn *const friend_con = get_conn(fr_c, number);
if (!friend_con) {
return;
}
if (friend_con->crypt_connection_id == -1) {
friend_new_connection(fr_c, number);
}
set_direct_ip_port(fr_c->net_crypto, friend_con->crypt_connection_id, ip_port, 1);
friend_con->dht_ip_port = ip_port;
friend_con->dht_ip_port_lastrecv = mono_time_get(fr_c->mono_time);
if (friend_con->hosting_tcp_relay) {
friend_add_tcp_relay(fr_c, number, ip_port, friend_con->dht_temp_pk);
friend_con->hosting_tcp_relay = 0;
}
}