ManagementClient::ManagementClient(ManagementInformationBase& mib, const udp::endpoint& clientEndpoint, u_int8_t wirelessStateUpdateInterval, u_int8_t locationUpdateInterval, Logger& logger)
: mib(mib), clientEndpoint(clientEndpoint), logger(logger) {
/**
* Check that source port is not an ephemeral port which would
* change every time a client sendto()s to MGMT
*/
if (clientEndpoint.port() >= 32768 && clientEndpoint.port() <= 61000)
logger.error("Client uses an ephemeral port that will change every time it sends data and this will confuse my state management!");
/**
* Initialise state strings map
*/
clientStateStringMap.insert(std::make_pair(ManagementClient::OFFLINE, "OFFLINE"));
clientStateStringMap.insert(std::make_pair(ManagementClient::ONLINE, "ONLINE"));
/**
* Initialise type strings map
*/
clientTypeStringMap.insert(std::make_pair(ManagementClient::UNKNOWN, "Unknown"));
clientTypeStringMap.insert(std::make_pair(ManagementClient::GN, "GeoNetworking"));
clientTypeStringMap.insert(std::make_pair(ManagementClient::FAC, "Facilities"));
clientTypeStringMap.insert(std::make_pair(ManagementClient::LTE, "Long Term Evolution"));
/**
* Initialise this client's state and type
*/
state = ManagementClient::OFFLINE;
type = ManagementClient::UNKNOWN;
/**
* We are not waiting a reply from this client now
*/
repliedToTheLastPacket = true;
}
void udp_socket::bind(udp::endpoint const& ep, error_code& ec)
{
if (m_ipv4_sock.is_open()) m_ipv4_sock.close(ec);
if (m_ipv6_sock.is_open()) m_ipv6_sock.close(ec);
if (ep.address().is_v4())
{
m_ipv4_sock.open(udp::v4(), ec);
if (ec) return;
m_ipv4_sock.bind(ep, ec);
if (ec) return;
m_ipv4_sock.async_receive_from(asio::buffer(m_v4_buf, sizeof(m_v4_buf))
, m_v4_ep, boost::bind(&udp_socket::on_read, this, &m_ipv4_sock, _1, _2));
}
else
{
m_ipv6_sock.set_option(v6only(true), ec);
if (ec) return;
m_ipv6_sock.bind(ep, ec);
if (ec) return;
m_ipv6_sock.async_receive_from(asio::buffer(m_v6_buf, sizeof(m_v6_buf))
, m_v6_ep, boost::bind(&udp_socket::on_read, this, &m_ipv6_sock, _1, _2));
}
m_bind_port = ep.port();
}
void udp_socket::wrap(udp::endpoint const& ep, char const* p, int len, error_code& ec)
{
CHECK_MAGIC;
using namespace libtorrent::detail;
char header[20];
char* h = header;
write_uint16(0, h); // reserved
write_uint8(0, h); // fragment
write_uint8(ep.address().is_v4()?1:4, h); // atyp
write_address(ep.address(), h);
write_uint16(ep.port(), h);
boost::array<asio::const_buffer, 2> iovec;
iovec[0] = asio::const_buffer(header, h - header);
iovec[1] = asio::const_buffer(p, len);
#if TORRENT_USE_IPV6
if (m_proxy_addr.address().is_v4() && m_ipv4_sock.is_open())
#endif
m_ipv4_sock.send_to(iovec, m_proxy_addr, 0, ec);
#if TORRENT_USE_IPV6
else
m_ipv6_sock.send_to(iovec, m_proxy_addr, 0, ec);
#endif
}
string EndpointToString(const udp::endpoint &endpoint)
{
string strIp = endpoint.address().to_string();
unsigned int dwPort = endpoint.port();
char szIpPort[32] = {0};
sprintf(szIpPort, "%s:%d", strIp.c_str(), dwPort);
return szIpPort;
}
node_entry(node_id const& id_, udp::endpoint ep, int roundtriptime = 0xffff, bool pinged = false)
: addr(ep.address())
, port(ep.port())
, timeout_count(pinged ? 0 : 0xffff)
, rtt(roundtriptime)
, id(id_)
{
#ifdef TORRENT_DHT_VERBOSE_LOGGING
first_seen = time_now();
#endif
}
void rpc_manager::invoke(int message_id, udp::endpoint target_addr
, observer_ptr o)
{
INVARIANT_CHECK;
if (m_destructing)
{
o->abort();
return;
}
msg m;
m.message_id = message_id;
m.reply = false;
m.id = m_our_id;
m.addr = target_addr;
TORRENT_ASSERT(!m_transactions[m_next_transaction_id]);
#ifdef TORRENT_DEBUG
int potential_new_id = m_next_transaction_id;
#endif
#ifndef BOOST_NO_EXCEPTIONS
try
{
#endif
m.transaction_id.clear();
std::back_insert_iterator<std::string> out(m.transaction_id);
io::write_uint16(m_next_transaction_id, out);
o->send(m);
o->sent = time_now();
#if TORRENT_USE_IPV6
o->target_addr = target_addr.address();
#else
o->target_addr = target_addr.address().to_v4();
#endif
o->port = target_addr.port();
#ifdef TORRENT_DHT_VERBOSE_LOGGING
TORRENT_LOG(rpc) << "Invoking " << messages::ids[message_id]
<< " -> " << target_addr;
#endif
m_send(m);
new_transaction_id(o);
#ifndef BOOST_NO_EXCEPTIONS
}
catch (std::exception& e)
{
// m_send may fail with "no route to host"
TORRENT_ASSERT(potential_new_id == m_next_transaction_id);
o->abort();
}
#endif
}
node_entry(udp::endpoint ep)
: addr(ep.address())
, port(ep.port())
, timeout_count(0xffff)
, rtt(0xffff)
, id(0)
{
#ifdef TORRENT_DHT_VERBOSE_LOGGING
first_seen = time_now();
#endif
}
bool CUDPSocket::SendData(udp::endpoint& ep, char* msg, int size, string& errInfo, unsigned long iProxyIp /*= 0*/, unsigned short iProxyPort /*= 0*/)
{
if(ep.address().to_v4().to_string().empty())
return false;
if(ep.address().to_v4().to_string()=="255.255.255.255")
return false;
if(ep.port() <=0 || ep.port() >65535)
return false;
if(msg == NULL)
return true;
try
{
int ret = this->m_mySocket.send_to(boost::asio::buffer((const void*)msg, size), ep);
if (ret < size)
{
return false;
}
}
catch (const boost::system::error_code& err)
{
ostringstream oss;
oss << "严重错误 CUDPSocket error_code2 " << err.value();
make_log_func_(oss.str());
return false;
}
catch (...)
{
ostringstream oss;
oss << "严重错误...";
make_log_func_(oss.str());
return false;
}
return true;
}
node_entry::node_entry(udp::endpoint ep)
: last_queried(min_time())
, id(0)
, a(ep.address().to_v4().to_bytes())
, p(ep.port())
, rtt(0xffff)
, timeout_count(0xff)
{
#ifdef TORRENT_DHT_VERBOSE_LOGGING
first_seen = aux::time_now();
#endif
}
void DatagramTransceiver::sendMessage(const QString &msg, const udp::endpoint& remote_endpoint)
{
bool write_in_progress = m_write_msgs.empty() == false;
MessageToSend* struct_msg = new MessageToSend;
struct_msg->destination_endpoint.address(remote_endpoint.address());
struct_msg->destination_endpoint.port(remote_endpoint.port());
struct_msg->msg = msg;
m_write_msgs.push_back(struct_msg);
if (write_in_progress == false) doSend();
}
node_entry::node_entry(node_id const& id_, udp::endpoint ep
, int roundtriptime
, bool pinged)
: last_queried(pinged ? aux::time_now() : min_time())
, id(id_)
, a(ep.address().to_v4().to_bytes())
, p(ep.port())
, rtt(roundtriptime & 0xffff)
, timeout_count(pinged ? 0 : 0xff)
{
#ifdef TORRENT_DHT_VERBOSE_LOGGING
first_seen = aux::time_now();
#endif
}
void udp_socket::bind(udp::endpoint const& ep, error_code& ec)
{
CHECK_MAGIC;
TORRENT_ASSERT(is_single_thread());
TORRENT_ASSERT(m_abort == false);
if (m_abort)
{
ec = boost::asio::error::operation_aborted;
return;
}
if (m_ipv4_sock.is_open()) m_ipv4_sock.close(ec);
#if TORRENT_USE_IPV6
if (m_ipv6_sock.is_open()) m_ipv6_sock.close(ec);
#endif
if (ep.address().is_v4())
{
m_ipv4_sock.open(udp::v4(), ec);
if (ec) return;
m_ipv4_sock.bind(ep, ec);
if (ec) return;
udp::socket::non_blocking_io ioc(true);
m_ipv4_sock.io_control(ioc, ec);
if (ec) return;
setup_read(&m_ipv4_sock);
}
#if TORRENT_USE_IPV6
else
{
#ifdef IPV6_V6ONLY
m_ipv6_sock.set_option(v6only(true), ec);
if (ec) return;
#endif
m_ipv6_sock.bind(ep, ec);
if (ec) return;
udp::socket::non_blocking_io ioc(true);
m_ipv6_sock.io_control(ioc, ec);
if (ec) return;
setup_read(&m_ipv6_sock);
}
#endif
#ifdef TORRENT_DEBUG
m_started = true;
#endif
m_bind_port = ep.port();
}
void udp_socket::bind(udp::endpoint const& ep, error_code& ec)
{
CHECK_MAGIC;
mutex_t::scoped_lock l(m_mutex);
TORRENT_ASSERT(m_abort == false);
if (m_abort) return;
if (m_ipv4_sock.is_open()) m_ipv4_sock.close(ec);
#if TORRENT_USE_IPV6
if (m_ipv6_sock.is_open()) m_ipv6_sock.close(ec);
#endif
if (ep.address().is_v4())
{
m_ipv4_sock.open(udp::v4(), ec);
if (ec) return;
m_ipv4_sock.bind(ep, ec);
if (ec) return;
if (m_v4_outstanding == 0)
{
++m_v4_outstanding;
m_ipv4_sock.async_receive_from(asio::buffer(m_v4_buf, sizeof(m_v4_buf))
, m_v4_ep, boost::bind(&udp_socket::on_read, this, &m_ipv4_sock, _1, _2));
}
}
#if TORRENT_USE_IPV6
else
{
m_ipv6_sock.set_option(v6only(true), ec);
if (ec) return;
m_ipv6_sock.bind(ep, ec);
if (ec) return;
if (m_v6_outstanding == 0)
{
++m_v6_outstanding;
m_ipv6_sock.async_receive_from(asio::buffer(m_v6_buf, sizeof(m_v6_buf))
, m_v6_ep, boost::bind(&udp_socket::on_read, this, &m_ipv6_sock, _1, _2));
}
}
#endif
#ifdef TORRENT_DEBUG
m_started = true;
#endif
m_bind_port = ep.port();
}
void observer::set_target(udp::endpoint const& ep)
{
m_sent = clock_type::now();
m_port = ep.port();
#if TORRENT_USE_IPV6
if (ep.address().is_v6())
{
flags |= flag_ipv6_address;
m_addr.v6 = ep.address().to_v6().to_bytes();
}
else
#endif
{
flags &= ~flag_ipv6_address;
m_addr.v4 = ep.address().to_v4().to_bytes();
}
}
static bool resolve_address_udp(io_service &io, int chan, std::string host, unsigned short port, udp::endpoint &ep)
{
bool result = false;
udp::resolver resolver(io);
error_code ec;
udp::resolver::query query(host, "");
std::for_each(resolver.resolve(query, ec), udp::resolver::iterator(),
[&](const udp::endpoint &q_ep) {
ep = q_ep;
ep.port(port);
result = true;
logDebug(PFXd "host %s resolved as %s", chan, host.c_str(), to_string_ss(ep).c_str());
});
if (ec) {
logWarn(PFXd "resolve error: %s", chan, ec.message().c_str());
result = false;
}
return result;
}
void observer::set_target(udp::endpoint const& ep)
{
#ifdef TORRENT_DHT_VERBOSE_LOGGING
// use high resolution timers for logging
m_sent = time_now_hires();
#else
m_sent = time_now();
#endif
m_port = ep.port();
#if TORRENT_USE_IPV6
if (ep.address().is_v6())
{
flags |= flag_ipv6_address;
m_addr.v6 = ep.address().to_v6().to_bytes();
}
else
#endif
{
flags &= ~flag_ipv6_address;
m_addr.v4 = ep.address().to_v4().to_bytes();
}
}
tuple endpoint_to_tuple(udp::endpoint const& ep)
{
return boost::python::make_tuple(ep.address().to_string(), ep.port());
}
uint64_t endpoint_to_i(const udp::endpoint& ep)
{
uint64_t addr_i = ep.address().to_v4().to_ulong();
uint32_t port = ep.port();
return (addr_i << 32) + port;
}
//==============================================================================
// Handle Connection (uglysolution.com)
// - Checks if the connection already exists. If it exists, restart timeout timer.
// Else, add new connection.
//==============================================================================
boost::shared_ptr<Connection> ConnectionHandler::handleConnection( udp::endpoint& _endpoint )
{
unsigned int connection_size = m_connections.size();
// Check if the connection already exists
for( unsigned int i = 0; i < connection_size; i++ )
{
if( m_connections[i]->endpoint.address().to_string().compare(_endpoint.address().to_string()) == 0 && m_connections[i]->endpoint.port() == _endpoint.port() )
{
boost::shared_ptr<Connection> connection = m_connections[i];
connection->timout_timer.expires_from_now( boost::posix_time::seconds(TIMEOUT) );
connection->timout_timer.async_wait( boost::bind(&ConnectionHandler::timeout, this, connection, boost::asio::placeholders::error) );
return m_connections[i];
}
}
// Check if connection size is greater than the allowed amount of connections
if( connection_size >= MAX_CONNECTIONS )
return boost::shared_ptr<Connection>();
// Find an connection ID
m_id_counter++;
for( unsigned int i = 0; i < m_connections.size(); i++ )
{
if( m_connections[i]->connection_id == m_id_counter )
{
m_id_counter++;
i = 0;
}
}
// Add the connection and start the timers
boost::shared_ptr<Connection> new_connection( new Connection(m_id_counter, _endpoint, (*m_io_service)) );
new_connection->ack_timer.async_wait( boost::bind(&ConnectionHandler::requestAck, this, new_connection, boost::asio::placeholders::error) );
new_connection->timout_timer.async_wait( boost::bind(&ConnectionHandler::timeout, this, new_connection, boost::asio::placeholders::error) );
m_connections.push_back( new_connection );
// temp solution
if( m_network_handler->isServer() )
new_connection->sync_timer.async_wait( boost::bind(&ConnectionHandler::syncClock, this, new_connection, boost::asio::placeholders::error) );
return m_connections.back();
}
inline std::string print_endpoint(udp::endpoint const& ep)
{
return print_endpoint(tcp::endpoint(ep.address(), ep.port()));
}
long UdpTransport::send_buffer(
const udp::endpoint& target, const char* buf, size_t size)
{
uint64_t bytes_sent = 0;
int send_attempts = -1;
ssize_t actual_sent = -1;
while (actual_sent < 0 && (settings_.resend_attempts < 0 ||
send_attempts < settings_.resend_attempts))
{
if(settings_.max_send_hertz > 0)
{
enforcer_.sleep_until_next();
}
// send the fragment
try
{
actual_sent = socket_.send_to(asio::buffer(buf, size), target);
}
catch (const boost::system::system_error& e)
{
madara_logger_log(context_.get_logger(), logger::LOG_MAJOR,
"UdpTransport::send_buffer:"
" Error sending packet to %s:%d: %s\n",
target.address().to_string().c_str(), (int)target.port(), e.what());
// ensure erroneous data is not being used
actual_sent = -1;
}
++send_attempts;
if(settings_.debug_to_kb_prefix != "")
{
++sent_packets;
}
if(actual_sent > 0)
{
madara_logger_log(context_.get_logger(), logger::LOG_MAJOR,
"UdpTransport::send_buffer: Sent %d byte packet to %s:%d\n",
(int)actual_sent, target.address().to_string().c_str(),
(int)target.port());
bytes_sent += actual_sent;
if(settings_.debug_to_kb_prefix != "")
{
sent_data += actual_sent;
if(sent_data_max < actual_sent)
{
sent_data_max = actual_sent;
}
if(sent_data_min > actual_sent || sent_data_min == 0)
{
sent_data_min = actual_sent;
}
}
}
else
{
if(settings_.debug_to_kb_prefix != "")
{
++failed_sends;
}
}
}
return (long)bytes_sent;
}
void EndpointToIpPort(const udp::endpoint &endpoint, string &strIp, unsigned int &dwPort)
{
strIp = endpoint.address().to_string();
dwPort = endpoint.port();
}
void DatagramTransceiver::setDefaultRemoteEndPoint(const udp::endpoint &remote_endpoint)
{
m_remote_endpoint.address(remote_endpoint.address());
m_remote_endpoint.port(remote_endpoint.port());
}
