static int add_tcp_relay(TCP_Connections *tcp_c, IP_Port ip_port, const uint8_t *relay_pk) { if (ip_port.ip.family == TCP_INET) { ip_port.ip.family = AF_INET; } else if (ip_port.ip.family == TCP_INET6) { ip_port.ip.family = AF_INET6; } if (ip_port.ip.family != AF_INET && ip_port.ip.family != AF_INET6) return -1; int tcp_connections_number = create_tcp_connection(tcp_c); if (tcp_connections_number == -1) return -1; TCP_con *tcp_con = &tcp_c->tcp_connections[tcp_connections_number]; tcp_con->connection = new_TCP_connection(ip_port, relay_pk, tcp_c->dht->self_public_key, tcp_c->dht->self_secret_key, &tcp_c->proxy_info); if (!tcp_con->connection) return -1; tcp_con->status = TCP_CONN_VALID; return tcp_connections_number; }
static int unsleep_tcp_relay_connection(TCP_Connections *tcp_c, int tcp_connections_number) { TCP_con *tcp_con = get_tcp_connection(tcp_c, tcp_connections_number); if (!tcp_con) { return -1; } if (tcp_con->status != TCP_CONN_SLEEPING) { return -1; } tcp_con->connection = new_TCP_connection(tcp_con->ip_port, tcp_con->relay_pk, tcp_c->self_public_key, tcp_c->self_secret_key, &tcp_c->proxy_info); if (!tcp_con->connection) { kill_tcp_relay_connection(tcp_c, tcp_connections_number); return -1; } tcp_con->lock_count = 0; tcp_con->sleep_count = 0; tcp_con->connected_time = 0; tcp_con->status = TCP_CONN_VALID; tcp_con->unsleep = 0; return 0; }
static int add_tcp_relay_instance(TCP_Connections *tcp_c, IP_Port ip_port, const uint8_t *relay_pk) { if (net_family_is_tcp_ipv4(ip_port.ip.family)) { ip_port.ip.family = net_family_ipv4; } else if (net_family_is_tcp_ipv6(ip_port.ip.family)) { ip_port.ip.family = net_family_ipv6; } if (!net_family_is_ipv4(ip_port.ip.family) && !net_family_is_ipv6(ip_port.ip.family)) { return -1; } int tcp_connections_number = create_tcp_connection(tcp_c); if (tcp_connections_number == -1) { return -1; } TCP_con *tcp_con = &tcp_c->tcp_connections[tcp_connections_number]; tcp_con->connection = new_TCP_connection(tcp_c->mono_time, ip_port, relay_pk, tcp_c->self_public_key, tcp_c->self_secret_key, &tcp_c->proxy_info); if (!tcp_con->connection) { return -1; } tcp_con->status = TCP_CONN_VALID; return tcp_connections_number; }
static int reconnect_tcp_relay_connection(TCP_Connections *tcp_c, int tcp_connections_number) { TCP_con *tcp_con = get_tcp_connection(tcp_c, tcp_connections_number); if (!tcp_con) { return -1; } if (tcp_con->status == TCP_CONN_SLEEPING) { return -1; } IP_Port ip_port = tcp_con_ip_port(tcp_con->connection); uint8_t relay_pk[CRYPTO_PUBLIC_KEY_SIZE]; memcpy(relay_pk, tcp_con_public_key(tcp_con->connection), CRYPTO_PUBLIC_KEY_SIZE); kill_TCP_connection(tcp_con->connection); tcp_con->connection = new_TCP_connection(ip_port, relay_pk, tcp_c->self_public_key, tcp_c->self_secret_key, &tcp_c->proxy_info); if (!tcp_con->connection) { kill_tcp_relay_connection(tcp_c, tcp_connections_number); return -1; } unsigned int i; for (i = 0; i < tcp_c->connections_length; ++i) { TCP_Connection_to *con_to = get_connection(tcp_c, i); if (con_to) { set_tcp_connection_status(con_to, tcp_connections_number, TCP_CONNECTIONS_STATUS_NONE, 0); } } if (tcp_con->onion) { --tcp_c->onion_num_conns; tcp_con->onion = 0; } tcp_con->lock_count = 0; tcp_con->sleep_count = 0; tcp_con->connected_time = 0; tcp_con->status = TCP_CONN_VALID; tcp_con->unsleep = 0; return 0; }