blob: 44395a905b5215c4b6319fcbb2fa3a6963bf4f03 (
plain)
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
|
/*
* 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_coordinator.cpp Basic functions to receive and send Game Coordinator packets.
*/
#include "../../stdafx.h"
#include "../../date_func.h"
#include "../../debug.h"
#include "tcp_coordinator.h"
#include "../../safeguards.h"
/**
* Handle the given packet, i.e. pass it to the right.
* parser receive command.
* @param p The packet to handle.
* @return True iff we should immediately handle further packets.
*/
bool NetworkCoordinatorSocketHandler::HandlePacket(Packet *p)
{
PacketCoordinatorType type = (PacketCoordinatorType)p->Recv_uint8();
switch (type) {
case PACKET_COORDINATOR_GC_ERROR: return this->Receive_GC_ERROR(p);
case PACKET_COORDINATOR_SERVER_REGISTER: return this->Receive_SERVER_REGISTER(p);
case PACKET_COORDINATOR_GC_REGISTER_ACK: return this->Receive_GC_REGISTER_ACK(p);
case PACKET_COORDINATOR_SERVER_UPDATE: return this->Receive_SERVER_UPDATE(p);
case PACKET_COORDINATOR_CLIENT_LISTING: return this->Receive_CLIENT_LISTING(p);
case PACKET_COORDINATOR_GC_LISTING: return this->Receive_GC_LISTING(p);
case PACKET_COORDINATOR_CLIENT_CONNECT: return this->Receive_CLIENT_CONNECT(p);
case PACKET_COORDINATOR_GC_CONNECTING: return this->Receive_GC_CONNECTING(p);
case PACKET_COORDINATOR_SERCLI_CONNECT_FAILED: return this->Receive_SERCLI_CONNECT_FAILED(p);
case PACKET_COORDINATOR_GC_CONNECT_FAILED: return this->Receive_GC_CONNECT_FAILED(p);
case PACKET_COORDINATOR_CLIENT_CONNECTED: return this->Receive_CLIENT_CONNECTED(p);
case PACKET_COORDINATOR_GC_DIRECT_CONNECT: return this->Receive_GC_DIRECT_CONNECT(p);
case PACKET_COORDINATOR_GC_STUN_REQUEST: return this->Receive_GC_STUN_REQUEST(p);
case PACKET_COORDINATOR_SERCLI_STUN_RESULT: return this->Receive_SERCLI_STUN_RESULT(p);
case PACKET_COORDINATOR_GC_STUN_CONNECT: return this->Receive_GC_STUN_CONNECT(p);
case PACKET_COORDINATOR_GC_NEWGRF_LOOKUP: return this->Receive_GC_NEWGRF_LOOKUP(p);
case PACKET_COORDINATOR_GC_TURN_CONNECT: return this->Receive_GC_TURN_CONNECT(p);
default:
Debug(net, 0, "[tcp/coordinator] Received invalid packet type {}", type);
return false;
}
}
/**
* Receive a packet at TCP level.
* @return Whether at least one packet was received.
*/
bool NetworkCoordinatorSocketHandler::ReceivePackets()
{
/*
* We read only a few of the packets. This allows the GUI to update when
* a large set of servers is being received. Otherwise the interface
* "hangs" while the game is updating the server-list.
*
* What arbitrary number to choose is the ultimate question though.
*/
Packet *p;
static const int MAX_PACKETS_TO_RECEIVE = 42;
int i = MAX_PACKETS_TO_RECEIVE;
while (--i != 0 && (p = this->ReceivePacket()) != nullptr) {
bool cont = this->HandlePacket(p);
delete p;
if (!cont) return true;
}
return i != MAX_PACKETS_TO_RECEIVE - 1;
}
/**
* Helper for logging receiving invalid packets.
* @param type The received packet type.
* @return Always false, as it's an error.
*/
bool NetworkCoordinatorSocketHandler::ReceiveInvalidPacket(PacketCoordinatorType type)
{
Debug(net, 0, "[tcp/coordinator] Received illegal packet type {}", type);
return false;
}
bool NetworkCoordinatorSocketHandler::Receive_GC_ERROR(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_ERROR); }
bool NetworkCoordinatorSocketHandler::Receive_SERVER_REGISTER(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_SERVER_REGISTER); }
bool NetworkCoordinatorSocketHandler::Receive_GC_REGISTER_ACK(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_REGISTER_ACK); }
bool NetworkCoordinatorSocketHandler::Receive_SERVER_UPDATE(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_SERVER_UPDATE); }
bool NetworkCoordinatorSocketHandler::Receive_CLIENT_LISTING(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_CLIENT_LISTING); }
bool NetworkCoordinatorSocketHandler::Receive_GC_LISTING(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_LISTING); }
bool NetworkCoordinatorSocketHandler::Receive_CLIENT_CONNECT(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_CLIENT_CONNECT); }
bool NetworkCoordinatorSocketHandler::Receive_GC_CONNECTING(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_CONNECTING); }
bool NetworkCoordinatorSocketHandler::Receive_SERCLI_CONNECT_FAILED(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_SERCLI_CONNECT_FAILED); }
bool NetworkCoordinatorSocketHandler::Receive_GC_CONNECT_FAILED(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_CONNECT_FAILED); }
bool NetworkCoordinatorSocketHandler::Receive_CLIENT_CONNECTED(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_CLIENT_CONNECTED); }
bool NetworkCoordinatorSocketHandler::Receive_GC_DIRECT_CONNECT(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_DIRECT_CONNECT); }
bool NetworkCoordinatorSocketHandler::Receive_GC_STUN_REQUEST(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_STUN_REQUEST); }
bool NetworkCoordinatorSocketHandler::Receive_SERCLI_STUN_RESULT(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_SERCLI_STUN_RESULT); }
bool NetworkCoordinatorSocketHandler::Receive_GC_STUN_CONNECT(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_STUN_CONNECT); }
bool NetworkCoordinatorSocketHandler::Receive_GC_NEWGRF_LOOKUP(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_NEWGRF_LOOKUP); }
bool NetworkCoordinatorSocketHandler::Receive_GC_TURN_CONNECT(Packet *p) { return this->ReceiveInvalidPacket(PACKET_COORDINATOR_GC_TURN_CONNECT); }
|
