1 |
|
|
/* |
2 |
|
|
* The ManaPlus Client |
3 |
|
|
* Copyright (C) 2013-2019 The ManaPlus Developers |
4 |
|
|
* Copyright (C) 2019-2021 Andrei Karas |
5 |
|
|
* |
6 |
|
|
* This file is part of The ManaPlus Client. |
7 |
|
|
* |
8 |
|
|
* This program is free software; you can redistribute it and/or modify |
9 |
|
|
* it under the terms of the GNU General Public License as published by |
10 |
|
|
* the Free Software Foundation; either version 2 of the License, or |
11 |
|
|
* any later version. |
12 |
|
|
* |
13 |
|
|
* This program is distributed in the hope that it will be useful, |
14 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 |
|
|
* GNU General Public License for more details. |
17 |
|
|
* |
18 |
|
|
* You should have received a copy of the GNU General Public License |
19 |
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 |
|
|
*/ |
21 |
|
|
|
22 |
|
|
#include "logger.h" |
23 |
|
|
|
24 |
|
|
#if defined __linux__ || defined __linux |
25 |
|
|
|
26 |
|
|
#include <sys/socket.h> |
27 |
|
|
|
28 |
|
|
#if defined(M_TCPOK) && !defined(ANDROID) |
29 |
|
|
#include <netinet/in.h> |
30 |
|
|
#include <netdb.h> |
31 |
|
|
#include <linux/tcp.h> |
32 |
|
|
#else // defined(M_TCPOK) && !defined(ANDROID) |
33 |
|
|
#include <netinet/in.h> |
34 |
|
|
#include <netinet/tcp.h> |
35 |
|
|
#include <netdb.h> |
36 |
|
|
#include <netinet/tcp.h> |
37 |
|
|
// Use linear timeouts for thin streams |
38 |
|
|
#define TCP_THIN_LINEAR_TIMEOUTS 16 |
39 |
|
|
// Fast retrans. after 1 dupack |
40 |
|
|
#define TCP_THIN_DUPACK 17 |
41 |
|
|
#endif // defined(M_TCPOK) && !defined(ANDROID) |
42 |
|
|
|
43 |
|
|
#endif // defined __linux__ || defined __linux |
44 |
|
|
|
45 |
|
|
PRAGMACLANG6GCC(GCC diagnostic push) |
46 |
|
|
PRAGMACLANG6GCC(GCC diagnostic ignored "-Wold-style-cast") |
47 |
|
|
#include "net/sdltcpnet.h" |
48 |
|
|
PRAGMACLANG6GCC(GCC diagnostic pop) |
49 |
|
|
|
50 |
|
|
#include "debug.h" |
51 |
|
|
|
52 |
|
|
#if !defined(__native_client__) \ |
53 |
|
|
&& (defined(TCP_THIN_LINEAR_TIMEOUTS) \ |
54 |
|
|
|| defined(TCP_THIN_DUPACK)) |
55 |
|
|
// because actual struct is hidden in SDL_net we reinroducing it here |
56 |
|
|
struct TCPsocketHack final |
57 |
|
|
{ |
58 |
|
|
TCPsocketHack() : |
59 |
|
|
ready(0), |
60 |
|
|
channel(0), |
61 |
|
|
remoteAddress(), |
62 |
|
|
localAddress(), |
63 |
|
|
sflag() |
64 |
|
|
{ } |
65 |
|
|
|
66 |
|
|
A_DELETE_COPY(TCPsocketHack) |
67 |
|
|
|
68 |
|
|
int ready; |
69 |
|
|
int channel; |
70 |
|
|
IPaddress remoteAddress; |
71 |
|
|
IPaddress localAddress; |
72 |
|
|
int sflag; |
73 |
|
|
}; |
74 |
|
|
#endif // !defined(__native_client__) |
75 |
|
|
// && (defined(TCP_THIN_LINEAR_TIMEOUTS) |
76 |
|
|
// || defined(TCP_THIN_DUPACK)) |
77 |
|
|
|
78 |
|
|
void TcpNet::init() |
79 |
|
|
{ |
80 |
|
|
SDLNet_Init(); |
81 |
|
|
} |
82 |
|
|
|
83 |
|
|
void TcpNet::quit() |
84 |
|
|
{ |
85 |
|
|
SDLNet_Quit(); |
86 |
|
|
} |
87 |
|
|
|
88 |
|
|
void TcpNet::closeSocket(const TcpNet::Socket socket) |
89 |
|
|
{ |
90 |
|
|
SDLNet_TCP_Close(socket); |
91 |
|
|
} |
92 |
|
|
|
93 |
|
|
int TcpNet::send(const TcpNet::Socket sock, const void *const data, |
94 |
|
|
const int len) |
95 |
|
|
{ |
96 |
|
|
return SDLNet_TCP_Send(sock, data, len); |
97 |
|
|
} |
98 |
|
|
|
99 |
|
|
const char *TcpNet::getError() |
100 |
|
|
{ |
101 |
|
|
return SDL_GetError(); |
102 |
|
|
} |
103 |
|
|
|
104 |
|
|
int TcpNet::resolveHost(IPaddress *const address, const char *const host, |
105 |
|
|
const Uint16 port) |
106 |
|
|
{ |
107 |
|
|
return SDLNet_ResolveHost(address, host, port); |
108 |
|
|
} |
109 |
|
|
|
110 |
|
|
TcpNet::Socket TcpNet::open(IPaddress *const ip) |
111 |
|
|
{ |
112 |
|
|
const TcpNet::Socket sock = SDLNet_TCP_Open(ip); |
113 |
|
|
#if !defined(__native_client__) \ |
114 |
|
|
&& (defined(TCP_THIN_LINEAR_TIMEOUTS) \ |
115 |
|
|
|| defined(TCP_THIN_DUPACK)) |
116 |
|
|
if ((sock != nullptr) && (ip != nullptr)) |
117 |
|
|
{ |
118 |
|
|
const TCPsocketHack *const hack |
119 |
|
|
= reinterpret_cast<const TCPsocketHack *>(sock); |
120 |
|
|
// here we using some magic to compare TCPsocket and own padding |
121 |
|
|
// because actual struct TCPsocket not in headers |
122 |
|
|
if (hack != nullptr) |
123 |
|
|
{ |
124 |
|
|
const IPaddress &addr = hack->remoteAddress; |
125 |
|
|
if (addr.host == ip->host && addr.port == ip->port) |
126 |
|
|
{ |
127 |
|
|
const int val = 1; |
128 |
|
|
#ifdef TCP_THIN_LINEAR_TIMEOUTS |
129 |
|
|
if (setsockopt(hack->channel, IPPROTO_TCP, |
130 |
|
|
TCP_THIN_LINEAR_TIMEOUTS, &val, sizeof(val)) != 0) |
131 |
|
|
{ |
132 |
|
|
logger->log_r("error on set TCP_THIN_LINEAR_TIMEOUTS"); |
133 |
|
|
} |
134 |
|
|
#endif // TCP_THIN_LINEAR_TIMEOUTS |
135 |
|
|
#ifdef TCP_THIN_DUPACK |
136 |
|
|
if (setsockopt(hack->channel, IPPROTO_TCP, |
137 |
|
|
TCP_THIN_DUPACK, &val, sizeof(val)) != 0) |
138 |
|
|
{ |
139 |
|
|
logger->log_r("error on set TCP_THIN_DUPACK"); |
140 |
|
|
} |
141 |
|
|
#endif // TCP_THIN_DUPACK |
142 |
|
|
} |
143 |
|
|
} |
144 |
|
|
} |
145 |
|
|
#endif // !defined(__native_client__) |
146 |
|
|
// && (defined(TCP_THIN_LINEAR_TIMEOUTS) |
147 |
|
|
// || defined(TCP_THIN_DUPACK)) |
148 |
|
|
return sock; |
149 |
|
|
} |
150 |
|
|
|
151 |
|
|
TcpNet::SocketSet TcpNet::allocSocketSet(const int maxsockets) |
152 |
|
|
{ |
153 |
|
|
return SDLNet_AllocSocketSet(maxsockets); |
154 |
|
|
} |
155 |
|
|
|
156 |
|
|
int TcpNet::addSocket(const TcpNet::SocketSet set, const TcpNet::Socket sock) |
157 |
|
|
{ |
158 |
|
|
PRAGMACLANG6GCC(GCC diagnostic push) |
159 |
|
|
PRAGMACLANG6GCC(GCC diagnostic ignored "-Wold-style-cast") |
160 |
|
|
return SDLNet_TCP_AddSocket(set, sock); |
161 |
|
|
PRAGMACLANG6GCC(GCC diagnostic pop) |
162 |
|
|
} |
163 |
|
|
|
164 |
|
|
int TcpNet::socketReady(const TcpNet::Socket sock) |
165 |
|
|
{ |
166 |
|
|
PRAGMACLANG5(GCC diagnostic push) |
167 |
|
|
PRAGMACLANG5(GCC diagnostic ignored "-Wzero-as-null-pointer-constant") |
168 |
|
|
PRAGMACLANG6GCC(GCC diagnostic push) |
169 |
|
|
PRAGMACLANG6GCC(GCC diagnostic ignored "-Wold-style-cast") |
170 |
|
|
return SDLNet_SocketReady(sock); |
171 |
|
|
PRAGMACLANG6GCC(GCC diagnostic pop) |
172 |
|
|
PRAGMACLANG5(GCC diagnostic pop) |
173 |
|
|
} |
174 |
|
|
|
175 |
|
|
int TcpNet::checkSockets(const TcpNet::SocketSet set, const Uint32 timeout) |
176 |
|
|
{ |
177 |
|
|
return SDLNet_CheckSockets(set, timeout); |
178 |
|
|
} |
179 |
|
|
|
180 |
|
|
int TcpNet::recv(const TcpNet::Socket sock, void *const data, const int maxlen) |
181 |
|
|
{ |
182 |
|
|
return SDLNet_TCP_Recv(sock, data, maxlen); |
183 |
|
|
} |
184 |
|
|
|
185 |
|
|
int TcpNet::delSocket(const TcpNet::SocketSet set, const TcpNet::Socket sock) |
186 |
|
|
{ |
187 |
|
|
PRAGMACLANG6GCC(GCC diagnostic push) |
188 |
|
|
PRAGMACLANG6GCC(GCC diagnostic ignored "-Wold-style-cast") |
189 |
|
|
return SDLNet_TCP_DelSocket(set, sock); |
190 |
|
|
PRAGMACLANG6GCC(GCC diagnostic pop) |
191 |
|
|
} |
192 |
|
|
|
193 |
|
|
void TcpNet::freeSocketSet(const TcpNet::SocketSet set) |
194 |
|
|
{ |
195 |
|
|
SDLNet_FreeSocketSet(set); |
196 |
|
|
} |
197 |
|
|
|
198 |
|
|
TcpNet::Socket TcpNet::accept(const TcpNet::Socket sock) |
199 |
|
|
{ |
200 |
|
|
return SDLNet_TCP_Accept(sock); |
201 |
|
|
} |