1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* 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 network_server.h Server part of the network protocol. */
#ifndef NETWORK_SERVER_H
#define NETWORK_SERVER_H
#include "network_internal.h"
#include "core/tcp_listen.h"
class ServerNetworkGameSocketHandler;
/** Make the code look slightly nicer/simpler. */
typedef ServerNetworkGameSocketHandler NetworkClientSocket;
/** Pool with all client sockets. */
typedef Pool<NetworkClientSocket, ClientIndex, 8, MAX_CLIENT_SLOTS, PT_NCLIENT> NetworkClientSocketPool;
extern NetworkClientSocketPool _networkclientsocket_pool;
/** Class for handling the server side of the game connection. */
class ServerNetworkGameSocketHandler : public NetworkClientSocketPool::PoolItem<&_networkclientsocket_pool>, public NetworkGameSocketHandler, public TCPListenHandler<ServerNetworkGameSocketHandler, PACKET_SERVER_FULL, PACKET_SERVER_BANNED> {
protected:
NetworkRecvStatus Receive_CLIENT_JOIN(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_COMPANY_INFO(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_GAME_PASSWORD(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_COMPANY_PASSWORD(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_GETMAP(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_MAP_OK(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_ACK(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_COMMAND(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_CHAT(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_SET_PASSWORD(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_SET_NAME(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_QUIT(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_ERROR(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_RCON(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_NEWGRFS_CHECKED(Packet *p) override;
NetworkRecvStatus Receive_CLIENT_MOVE(Packet *p) override;
NetworkRecvStatus SendCompanyInfo();
NetworkRecvStatus SendNewGRFCheck();
NetworkRecvStatus SendWelcome();
NetworkRecvStatus SendWait();
NetworkRecvStatus SendNeedGamePassword();
NetworkRecvStatus SendNeedCompanyPassword();
public:
/** Status of a client */
enum ClientStatus {
STATUS_INACTIVE, ///< The client is not connected nor active.
STATUS_NEWGRFS_CHECK, ///< The client is checking NewGRFs.
STATUS_AUTH_GAME, ///< The client is authorizing with game (server) password.
STATUS_AUTH_COMPANY, ///< The client is authorizing with company password.
STATUS_AUTHORIZED, ///< The client is authorized.
STATUS_MAP_WAIT, ///< The client is waiting as someone else is downloading the map.
STATUS_MAP, ///< The client is downloading the map.
STATUS_DONE_MAP, ///< The client has downloaded the map.
STATUS_PRE_ACTIVE, ///< The client is catching up the delayed frames.
STATUS_ACTIVE, ///< The client is active within in the game.
STATUS_END, ///< Must ALWAYS be on the end of this list!! (period).
};
byte lag_test; ///< Byte used for lag-testing the client
byte last_token; ///< The last random token we did send to verify the client is listening
uint32 last_token_frame; ///< The last frame we received the right token
ClientStatus status; ///< Status of this client
CommandQueue outgoing_queue; ///< The command-queue awaiting delivery
int receive_limit; ///< Amount of bytes that we can receive at this moment
struct PacketWriter *savegame; ///< Writer used to write the savegame.
NetworkAddress client_address; ///< IP-address of the client (so he can be banned)
ServerNetworkGameSocketHandler(SOCKET s);
~ServerNetworkGameSocketHandler();
virtual Packet *ReceivePacket() override;
NetworkRecvStatus CloseConnection(NetworkRecvStatus status) override;
void GetClientName(char *client_name, const char *last) const;
NetworkRecvStatus SendMap();
NetworkRecvStatus SendErrorQuit(ClientID client_id, NetworkErrorCode errorno);
NetworkRecvStatus SendQuit(ClientID client_id);
NetworkRecvStatus SendShutdown();
NetworkRecvStatus SendNewGame();
NetworkRecvStatus SendRConResult(uint16 colour, const char *command);
NetworkRecvStatus SendMove(ClientID client_id, CompanyID company_id);
NetworkRecvStatus SendClientInfo(NetworkClientInfo *ci);
NetworkRecvStatus SendError(NetworkErrorCode error);
NetworkRecvStatus SendChat(NetworkAction action, ClientID client_id, bool self_send, const char *msg, int64 data);
NetworkRecvStatus SendJoin(ClientID client_id);
NetworkRecvStatus SendFrame();
NetworkRecvStatus SendSync();
NetworkRecvStatus SendCommand(const CommandPacket *cp);
NetworkRecvStatus SendCompanyUpdate();
NetworkRecvStatus SendConfigUpdate();
static void Send();
static void AcceptConnection(SOCKET s, const NetworkAddress &address);
static bool AllowConnection();
/**
* Get the name used by the listener.
* @return the name to show in debug logs and the like.
*/
static const char *GetName()
{
return "server";
}
const char *GetClientIP();
static ServerNetworkGameSocketHandler *GetByClientID(ClientID client_id);
};
void NetworkServer_Tick(bool send_frame);
void NetworkServerSetCompanyPassword(CompanyID company_id, const char *password, bool already_hashed = true);
void NetworkServerUpdateCompanyPassworded(CompanyID company_id, bool passworded);
/**
* Iterate over all the sockets from a given starting point.
* @param var The variable to iterate with.
* @param start The start of the iteration.
*/
#define FOR_ALL_CLIENT_SOCKETS_FROM(var, start) FOR_ALL_ITEMS_FROM(NetworkClientSocket, clientsocket_index, var, start)
/**
* Iterate over all the sockets.
* @param var The variable to iterate with.
*/
#define FOR_ALL_CLIENT_SOCKETS(var) FOR_ALL_CLIENT_SOCKETS_FROM(var, 0)
#endif /* NETWORK_SERVER_H */
|
