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Location: cpp/openttd-patchpack/source/src/network/core/tcp_admin.cpp - annotation
r16258:7148460f4b1c
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(svn r20969) -Add: client info change notification to remote admins (dihedral)
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/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file tcp_admin.cpp Basic functions to receive and send TCP packets to and from the admin network.
*/
#ifdef ENABLE_NETWORK
#include "../../stdafx.h"
#include "../network_internal.h"
#include "tcp_admin.h"
#include "../../debug.h"
NetworkAdminSocketHandler::NetworkAdminSocketHandler(SOCKET s)
{
this->sock = s;
}
NetworkAdminSocketHandler::~NetworkAdminSocketHandler()
{
}
NetworkRecvStatus NetworkAdminSocketHandler::CloseConnection(bool error)
{
delete this;
return NETWORK_RECV_STATUS_CONN_LOST;
}
/**
* Defines a simple (switch) case for each network packet.
* @param type the packet type to create the case for.
*/
#define ADMIN_COMMAND(type) case type: return this->NetworkPacketReceive_ ## type ## _command(p); break;
/**
* Handle the given packet, i.e. pass it to the right parser receive command.
* @param p the packet to handle.
* @return #NetworkRecvStatus of handling.
*/
NetworkRecvStatus NetworkAdminSocketHandler::HandlePacket(Packet *p)
{
PacketAdminType type = (PacketAdminType)p->Recv_uint8();
switch (this->HasClientQuit() ? INVALID_ADMIN_PACKET : type) {
ADMIN_COMMAND(ADMIN_PACKET_ADMIN_JOIN)
ADMIN_COMMAND(ADMIN_PACKET_ADMIN_QUIT)
ADMIN_COMMAND(ADMIN_PACKET_ADMIN_UPDATE_FREQUENCY)
ADMIN_COMMAND(ADMIN_PACKET_ADMIN_POLL)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_FULL)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_BANNED)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_ERROR)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_PROTOCOL)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_WELCOME)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_NEWGAME)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_SHUTDOWN)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_DATE)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_CLIENT_JOIN)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_CLIENT_INFO)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_CLIENT_UPDATE)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_CLIENT_QUIT)
ADMIN_COMMAND(ADMIN_PACKET_SERVER_CLIENT_ERROR)
default:
if (this->HasClientQuit()) {
DEBUG(net, 0, "[tcp/admin] received invalid packet type %d from '%s' (%s)", type, this->admin_name, this->admin_version);
} else {
DEBUG(net, 0, "[tcp/admin] received illegal packet from '%s' (%s)", this->admin_name, this->admin_version);
}
this->CloseConnection();
return NETWORK_RECV_STATUS_MALFORMED_PACKET;
}
}
/**
* Do the actual receiving of packets.
* As long as HandlePacket returns OKAY packets are handled. Upon
* failure, or no more packets to process the last result of
* HandlePacket is returned.
* @return #NetworkRecvStatus of the last handled packet.
*/
NetworkRecvStatus NetworkAdminSocketHandler::Recv_Packets()
{
Packet *p;
while ((p = this->Recv_Packet()) != NULL) {
NetworkRecvStatus res = HandlePacket(p);
if (res != NETWORK_RECV_STATUS_OKAY) return res;
}
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Create stub implementations for all receive commands that only
* show a warning that the given command is not available for the
* socket where the packet came from.
* @param type the packet type to create the stub for.
*/
#define DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(type) \
NetworkRecvStatus NetworkAdminSocketHandler::NetworkPacketReceive_## type ##_command(Packet *p) \
{ \
DEBUG(net, 0, "[tcp/admin] received illegal packet type %d from admin %s (%s)", \
type, this->admin_name, this->admin_version); \
return NETWORK_RECV_STATUS_MALFORMED_PACKET; \
}
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_ADMIN_JOIN)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_ADMIN_QUIT)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_ADMIN_UPDATE_FREQUENCY)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_ADMIN_POLL)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_FULL)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_BANNED)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_ERROR)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_PROTOCOL)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_WELCOME)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_NEWGAME)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_SHUTDOWN)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_DATE)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_CLIENT_JOIN)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_CLIENT_INFO)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_CLIENT_UPDATE)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_CLIENT_QUIT)
DEFINE_UNAVAILABLE_ADMIN_RECEIVE_COMMAND(ADMIN_PACKET_SERVER_CLIENT_ERROR)
#endif /* ENABLE_NETWORK */
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