/* Send an oob packet via the TCP relay corresponding to tcp_connections_number.
*
* return 0 on success.
* return -1 on failure.
*/
int tcp_send_oob_packet(TCP_Connections *tcp_c, unsigned int tcp_connections_number, const uint8_t *public_key,
const uint8_t *packet, uint16_t length)
{
TCP_con *tcp_con = get_tcp_connection(tcp_c, tcp_connections_number);
if (!tcp_con)
return -1;
int ret = send_oob_packet(tcp_con->connection, public_key, packet, length);
if (ret == 1)
return 0;
return -1;
}
/* Send an oob packet via the TCP relay corresponding to tcp_connections_number.
*
* return 0 on success.
* return -1 on failure.
*/
int tcp_send_oob_packet(TCP_Connections *tcp_c, unsigned int tcp_connections_number, const uint8_t *public_key,
const uint8_t *packet, uint16_t length)
{
TCP_con *tcp_con = get_tcp_connection(tcp_c, tcp_connections_number);
if (!tcp_con) {
return -1;
}
if (tcp_con->status != TCP_CONN_CONNECTED) {
return -1;
}
int ret = send_oob_packet(tcp_con->connection, public_key, packet, length);
if (ret == 1) {
return 0;
}
return -1;
}
/* Send a packet to the TCP connection.
*
* return -1 on failure.
* return 0 on success.
*/
int send_packet_tcp_connection(TCP_Connections *tcp_c, int connections_number, const uint8_t *packet, uint16_t length)
{
TCP_Connection_to *con_to = get_connection(tcp_c, connections_number);
if (!con_to) {
return -1;
}
//TODO: detect and kill bad relays.
//TODO: thread safety?
unsigned int i;
int ret = -1;
for (i = 0; i < MAX_FRIEND_TCP_CONNECTIONS; ++i) {
uint32_t tcp_con_num = con_to->connections[i].tcp_connection;
uint8_t status = con_to->connections[i].status;
uint8_t connection_id = con_to->connections[i].connection_id;
if (tcp_con_num && status == TCP_CONNECTIONS_STATUS_ONLINE) {
tcp_con_num -= 1;
TCP_con *tcp_con = get_tcp_connection(tcp_c, tcp_con_num);
if (!tcp_con) {
continue;
}
ret = send_data(tcp_con->connection, connection_id, packet, length);
if (ret == 1) {
break;
}
}
}
if (ret == 1) {
return 0;
} else {
for (i = 0; i < MAX_FRIEND_TCP_CONNECTIONS; ++i) {
uint32_t tcp_con_num = con_to->connections[i].tcp_connection;
uint8_t status = con_to->connections[i].status;
uint8_t connection_id = con_to->connections[i].connection_id;
if (tcp_con_num && status == TCP_CONNECTIONS_STATUS_REGISTERED) {
tcp_con_num -= 1;
TCP_con *tcp_con = get_tcp_connection(tcp_c, tcp_con_num);
if (!tcp_con) {
continue;
}
ret = send_oob_packet(tcp_con->connection, con_to->public_key, packet, length);
if (ret == 1) {
break;
}
}
}
if (ret == 1) {
return 0;
} else {
return -1;
}
}
}
/* Send a packet to the TCP connection.
*
* return -1 on failure.
* return 0 on success.
*/
int send_packet_tcp_connection(TCP_Connections *tcp_c, int connections_number, const uint8_t *packet, uint16_t length)
{
TCP_Connection_to *con_to = get_connection(tcp_c, connections_number);
if (!con_to) {
return -1;
}
// TODO(irungentoo): detect and kill bad relays.
// TODO(irungentoo): thread safety?
unsigned int i;
int ret = -1;
bool limit_reached = 0;
for (i = 0; i < MAX_FRIEND_TCP_CONNECTIONS; ++i) {
uint32_t tcp_con_num = con_to->connections[i].tcp_connection;
uint8_t status = con_to->connections[i].status;
uint8_t connection_id = con_to->connections[i].connection_id;
if (tcp_con_num && status == TCP_CONNECTIONS_STATUS_ONLINE) {
tcp_con_num -= 1;
TCP_con *tcp_con = get_tcp_connection(tcp_c, tcp_con_num);
if (!tcp_con) {
continue;
}
ret = send_data(tcp_con->connection, connection_id, packet, length);
if (ret == 0) {
limit_reached = 1;
}
if (ret == 1) {
break;
}
}
}
if (ret == 1) {
return 0;
}
if (!limit_reached) {
ret = 0;
/* Send oob packets to all relays tied to the connection. */
for (i = 0; i < MAX_FRIEND_TCP_CONNECTIONS; ++i) {
uint32_t tcp_con_num = con_to->connections[i].tcp_connection;
uint8_t status = con_to->connections[i].status;
if (tcp_con_num && status == TCP_CONNECTIONS_STATUS_REGISTERED) {
tcp_con_num -= 1;
TCP_con *tcp_con = get_tcp_connection(tcp_c, tcp_con_num);
if (!tcp_con) {
continue;
}
if (send_oob_packet(tcp_con->connection, con_to->public_key, packet, length) == 1) {
ret += 1;
}
}
}
if (ret >= 1) {
return 0;
}
return -1;
}
return -1;
}
