1 (* Copyright (C) Doom 2D: Forever Developers
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, version 3 of the License ONLY.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 {$INCLUDE ../shared/a_modes.inc}
21 e_log
, e_msg
, ENet
, Classes
, md5
, MAPDEF
{$IFDEF USE_MINIUPNPC}, miniupnpc
;{$ELSE};{$ENDIF}
24 NET_PROTOCOL_VER
= 182;
30 NET_CHAN_IMPORTANT
= 1;
33 NET_CHAN_PLAYERPOS
= 4;
35 NET_CHAN_MONSTERPOS
= 6;
36 NET_CHAN_LARGEDATA
= 7;
38 NET_CHAN_DOWNLOAD
= 9;
40 NET_CHAN_DOWNLOAD_EX
= 11;
47 NET_PING_PORT
= $DF2D;
54 NET_DISC_NONE
: enet_uint32
= 0;
55 NET_DISC_PROTOCOL
: enet_uint32
= 1;
56 NET_DISC_VERSION
: enet_uint32
= 2;
57 NET_DISC_FULL
: enet_uint32
= 3;
58 NET_DISC_KICK
: enet_uint32
= 4;
59 NET_DISC_DOWN
: enet_uint32
= 5;
60 NET_DISC_PASSWORD
: enet_uint32
= 6;
61 NET_DISC_TEMPBAN
: enet_uint32
= 7;
62 NET_DISC_BAN
: enet_uint32
= 8;
63 NET_DISC_MAX
: enet_uint32
= 8;
64 NET_DISC_FILE_TIMEOUT
: enet_uint32
= 13;
70 NET_CONNECT_TIMEOUT
= 1000 * 10;
72 BANLIST_FILENAME
= 'banlist.txt';
73 NETDUMP_FILENAME
= 'netdump';
75 {$IF DEFINED(FREEBSD) OR DEFINED(DARWIN)}
82 TNetMapResourceInfo
= record
83 wadName
: AnsiString; // wad file name, without a path
84 size
: Integer; // wad file size (-1: size and hash are not known)
85 hash
: TMD5Digest
; // wad hash
88 TNetMapResourceInfoArray
= array of TNetMapResourceInfo
;
90 TNetFileTransfer
= record
94 size
: Integer; // file size in bytes
96 lastSentChunk
: Integer;
97 lastAckChunk
: Integer;
98 lastAckTime
: Int64; // msecs; if not "in progress", we're waiting for the first ack
100 diskBuffer
: PChar; // of `chunkSize` bytes
110 RequestedFullUpdate
: Boolean;
111 WaitForFirstSpawn
: Boolean; // set to `true` in server, used to spawn a player on first full state request
114 Transfer
: TNetFileTransfer
; // only one transfer may be active
115 NetOut
: array [0..1] of TMsg
;
121 pTNetClient
= ^TNetClient
;
123 AByte
= array of Byte;
126 NetInitDone
: Boolean = False;
127 NetMode
: Byte = NET_NONE
;
128 NetDump
: Boolean = False;
130 NetServerName
: string = 'Unnamed Server';
131 NetPassword
: string = '';
132 NetPort
: Word = 25666;
134 NetAllowRCON
: Boolean = False;
135 NetRCONPassword
: string = '';
137 NetTimeToUpdate
: Cardinal = 0;
138 NetTimeToReliable
: Cardinal = 0;
139 NetTimeToMaster
: Cardinal = 0;
141 NetHost
: pENetHost
= nil;
142 NetPeer
: pENetPeer
= nil;
144 NetAddr
: ENetAddress
;
146 NetPongAddr
: ENetAddress
;
147 NetPongSock
: ENetSocket
= ENET_SOCKET_NULL
;
149 NetUseMaster
: Boolean = True;
150 NetSlistIP
: string = 'mpms.doom2d.org';
151 NetSlistPort
: Word = 25665;
152 NetSlistList
: string = 'deadsoftware.ru:25665';
154 NetClientIP
: string = '127.0.0.1';
155 NetClientPort
: Word = 25666;
158 NetBuf
: array [0..1] of TMsg
;
160 NetClients
: array of TNetClient
;
161 NetClientCount
: Byte = 0;
162 NetMaxClients
: Byte = 255;
163 NetBannedHosts
: array of TBanRecord
;
165 NetState
: Integer = NET_STATE_NONE
;
167 NetMyID
: Integer = -1;
168 NetPlrUID1
: Integer = -1;
169 NetPlrUID2
: Integer = -1;
171 NetInterpLevel
: Integer = 1;
172 NetUpdateRate
: Cardinal = 0; // as soon as possible
173 NetRelupdRate
: Cardinal = 18; // around two times a second
174 NetMasterRate
: Cardinal = 60000;
176 NetForcePlayerUpdate
: Boolean = False;
177 NetPredictSelf
: Boolean = True;
178 NetForwardPorts
: Boolean = False;
180 NetGotEverything
: Boolean = False;
181 NetGotKeys
: Boolean = False;
183 {$IFDEF USE_MINIUPNPC}
184 NetPortForwarded
: Word = 0;
185 NetPongForwarded
: Boolean = False;
186 NetIGDControl
: AnsiString;
187 NetIGDService
: TURLStr
;
190 NetPortThread
: TThreadID
= NilThreadId
;
192 NetDumpFile
: TStream
;
194 g_Res_received_map_start
: Integer = 0; // set if we received "map change" event
197 function g_Net_Init(): Boolean;
198 procedure g_Net_Cleanup();
199 procedure g_Net_Free();
200 procedure g_Net_Flush();
202 function g_Net_Host(IPAddr
: LongWord; Port
: enet_uint16
; MaxClients
: Cardinal = 16): Boolean;
203 procedure g_Net_Host_Die();
204 procedure g_Net_Host_Send(ID
: Integer; Reliable
: Boolean; Chan
: Byte = NET_CHAN_GAME
);
205 function g_Net_Host_Update(): enet_size_t
;
207 function g_Net_Connect(IP
: string; Port
: enet_uint16
): Boolean;
208 procedure g_Net_Disconnect(Forced
: Boolean = False);
209 procedure g_Net_Client_Send(Reliable
: Boolean; Chan
: Byte = NET_CHAN_GAME
);
210 function g_Net_Client_Update(): enet_size_t
;
211 function g_Net_Client_UpdateWhileLoading(): enet_size_t
;
213 function g_Net_Client_ByName(Name
: string): pTNetClient
;
214 function g_Net_Client_ByPlayer(PID
: Word): pTNetClient
;
215 function g_Net_ClientName_ByID(ID
: Integer): string;
217 procedure g_Net_SendData(Data
: AByte
; peer
: pENetPeer
; Reliable
: Boolean; Chan
: Byte = NET_CHAN_DOWNLOAD
);
218 //function g_Net_Wait_Event(msgId: Word): TMemoryStream;
219 //function g_Net_Wait_FileInfo (var tf: TNetFileTransfer; asMap: Boolean; out resList: TStringList): Integer;
221 function IpToStr(IP
: LongWord): string;
222 function StrToIp(IPstr
: string; var IP
: LongWord): Boolean;
224 function g_Net_IsHostBanned(IP
: LongWord; Perm
: Boolean = False): Boolean;
225 procedure g_Net_BanHost(IP
: LongWord; Perm
: Boolean = True); overload
;
226 procedure g_Net_BanHost(IP
: string; Perm
: Boolean = True); overload
;
227 function g_Net_UnbanHost(IP
: string): Boolean; overload
;
228 function g_Net_UnbanHost(IP
: LongWord): Boolean; overload
;
229 procedure g_Net_UnbanNonPermHosts();
230 procedure g_Net_SaveBanList();
232 procedure g_Net_DumpStart();
233 procedure g_Net_DumpSendBuffer();
234 procedure g_Net_DumpRecvBuffer(Buf
: penet_uint8
; Len
: LongWord);
235 procedure g_Net_DumpEnd();
237 function g_Net_ForwardPorts(ForwardPongPort
: Boolean = True): Boolean;
238 procedure g_Net_UnforwardPorts();
240 function g_Net_UserRequestExit
: Boolean;
242 function g_Net_Wait_MapInfo (var tf
: TNetFileTransfer
; var resList
: TNetMapResourceInfoArray
): Integer;
243 function g_Net_RequestResFileInfo (resIndex
: LongInt; out tf
: TNetFileTransfer
): Integer;
244 function g_Net_AbortResTransfer (var tf
: TNetFileTransfer
): Boolean;
245 function g_Net_ReceiveResourceFile (resIndex
: LongInt; var tf
: TNetFileTransfer
; strm
: TStream
): Integer;
247 function g_Net_IsNetworkAvailable (): Boolean;
248 procedure g_Net_InitLowLevel ();
249 procedure g_Net_DeinitLowLevel ();
256 e_input
, g_nethandler
, g_netmsg
, g_netmaster
, g_player
, g_window
, g_console
,
257 g_main
, g_game
, g_language
, g_weapons
, utils
, ctypes
, g_system
,
261 FILE_CHUNK_SIZE
= 8192;
264 enet_init_success
: Boolean = false;
265 g_Net_DownloadTimeout
: Single;
269 function g_Net_IsNetworkAvailable (): Boolean;
271 result
:= enet_init_success
;
274 procedure g_Net_InitLowLevel ();
276 if enet_init_success
then raise Exception
.Create('wuta?!');
277 enet_init_success
:= (enet_initialize() = 0);
280 procedure g_Net_DeinitLowLevel ();
282 if enet_init_success
then
285 enet_init_success
:= false;
290 //**************************************************************************
294 //**************************************************************************
296 procedure clearNetClientTransfers (var nc
: TNetClient
);
298 nc
.Transfer
.stream
.Free
;
299 nc
.Transfer
.diskName
:= ''; // just in case
300 if (nc
.Transfer
.diskBuffer
<> nil) then FreeMem(nc
.Transfer
.diskBuffer
);
301 nc
.Transfer
.stream
:= nil;
302 nc
.Transfer
.diskBuffer
:= nil;
306 procedure clearNetClient (var nc
: TNetClient
);
308 clearNetClientTransfers(nc
);
312 procedure clearNetClients (clearArray
: Boolean);
316 for f
:= Low(NetClients
) to High(NetClients
) do clearNetClient(NetClients
[f
]);
317 if (clearArray
) then SetLength(NetClients
, 0);
321 function g_Net_UserRequestExit (): Boolean;
323 Result
:= {e_KeyPressed(IK_SPACE) or}
324 e_KeyPressed(IK_ESCAPE
) or
325 e_KeyPressed(VK_ESCAPE
) or
326 e_KeyPressed(JOY0_JUMP
) or
327 e_KeyPressed(JOY1_JUMP
) or
328 e_KeyPressed(JOY2_JUMP
) or
329 e_KeyPressed(JOY3_JUMP
)
333 //**************************************************************************
335 // file transfer declaraions and host packet processor
337 //**************************************************************************
340 // server packet type
341 NTF_SERVER_DONE
= 10; // done with this file
342 NTF_SERVER_FILE_INFO
= 11; // sent after client request
343 NTF_SERVER_CHUNK
= 12; // next chunk; chunk number follows
344 NTF_SERVER_ABORT
= 13; // server abort
345 NTF_SERVER_MAP_INFO
= 14;
347 // client packet type
348 NTF_CLIENT_MAP_REQUEST
= 100; // map file request; also, returns list of additional wads to download
349 NTF_CLIENT_FILE_REQUEST
= 101; // resource file request (by index)
350 NTF_CLIENT_ABORT
= 102; // do not send requested file, or abort current transfer
351 NTF_CLIENT_START
= 103; // start transfer; client may resume download by sending non-zero starting chunk
352 NTF_CLIENT_ACK
= 104; // chunk ack; chunk number follows
355 // disconnect client due to some file transfer error
356 procedure killClientByFT (var nc
: TNetClient
);
358 e_LogWritefln('disconnected client #%d due to file transfer error', [nc
.ID
], TMsgType
.Warning
);
359 enet_peer_disconnect(nc
.Peer
, NET_DISC_FILE_TIMEOUT
);
360 clearNetClientTransfers(nc
);
361 g_Net_Slist_ServerPlayerLeaves();
365 // send file transfer message from server to client
366 function ftransSendServerMsg (var nc
: TNetClient
; var m
: TMsg
): Boolean;
371 if (m
.CurSize
< 1) then exit
;
372 pkt
:= enet_packet_create(m
.Data
, m
.CurSize
, ENET_PACKET_FLAG_RELIABLE
);
373 if not Assigned(pkt
) then begin killClientByFT(nc
); exit
; end;
374 if (enet_peer_send(nc
.Peer
, NET_CHAN_DOWNLOAD_EX
, pkt
) <> 0) then begin killClientByFT(nc
); exit
; end;
379 // send file transfer message from client to server
380 function ftransSendClientMsg (var m
: TMsg
): Boolean;
385 if (m
.CurSize
< 1) then exit
;
386 pkt
:= enet_packet_create(m
.Data
, m
.CurSize
, ENET_PACKET_FLAG_RELIABLE
);
387 if not Assigned(pkt
) then exit
;
388 if (enet_peer_send(NetPeer
, NET_CHAN_DOWNLOAD_EX
, pkt
) <> 0) then exit
;
394 procedure ProcessChunkSend (var nc
: TNetClient
);
396 tf
: ^TNetFileTransfer
;
402 if (tf
.stream
= nil) then exit
;
404 // arbitrary timeout number
405 if (ct
-tf
.lastAckTime
>= 5000) then
410 // check if we need to send something
411 if (not tf
.inProgress
) then exit
; // waiting for the initial ack
412 // ok, we're sending chunks
413 if (tf
.lastAckChunk
<> tf
.lastSentChunk
) then exit
;
414 Inc(tf
.lastSentChunk
);
415 // do it one chunk at a time; client ack will advance our chunk counter
416 chunks
:= (tf
.size
+tf
.chunkSize
-1) div tf
.chunkSize
;
418 if (tf
.lastSentChunk
> chunks
) then
425 if (tf
.lastSentChunk
= chunks
) then
427 // we're done with this file
428 e_LogWritefln('download: client #%d, DONE sending chunks #%d/#%d', [nc
.ID
, tf
.lastSentChunk
, chunks
]);
429 trans_omsg
.Write(Byte(NTF_SERVER_DONE
));
430 clearNetClientTransfers(nc
);
435 trans_omsg
.Write(Byte(NTF_SERVER_CHUNK
));
436 trans_omsg
.Write(LongInt(tf
.lastSentChunk
));
438 rd
:= tf
.size
-(tf
.lastSentChunk
*tf
.chunkSize
);
439 if (rd
> tf
.chunkSize
) then rd
:= tf
.chunkSize
;
440 trans_omsg
.Write(LongInt(rd
));
441 //e_LogWritefln('download: client #%d, sending chunk #%d/#%d (%d bytes)', [nc.ID, tf.lastSentChunk, chunks, rd]);
442 //FIXME: check for errors here
444 tf
.stream
.Seek(tf
.lastSentChunk
*tf
.chunkSize
, soFromBeginning
);
445 tf
.stream
.ReadBuffer(tf
.diskBuffer
^, rd
);
446 trans_omsg
.WriteData(tf
.diskBuffer
, rd
);
453 ftransSendServerMsg(nc
, trans_omsg
);
457 // server file transfer packet processor
458 // received packet is in `NetEvent`
459 procedure ProcessDownloadExPacket ();
466 tf
: ^TNetFileTransfer
;
476 // find client index by peer
477 for f
:= Low(NetClients
) to High(NetClients
) do
479 if (not NetClients
[f
].Used
) then continue
;
480 if (NetClients
[f
].Peer
= NetEvent
.peer
) then
486 //e_LogWritefln('RECEIVE: dlpacket; client=%d (datalen=%u)', [nid, NetEvent.packet^.dataLength]);
488 if (nid
< 0) then exit
; // wtf?!
489 nc
:= @NetClients
[nid
];
491 if (NetEvent
.packet
^.dataLength
= 0) then
497 tf
:= @NetClients
[nid
].Transfer
;
498 tf
.lastAckTime
:= GetTimerMS();
500 cmd
:= Byte(NetEvent
.packet
^.data
^);
501 //e_LogWritefln('RECEIVE: nid=%d; cmd=%u', [nid, cmd]);
503 NTF_CLIENT_FILE_REQUEST
: // file request
505 if (tf
.stream
<> nil) then
510 if (NetEvent
.packet
^.dataLength
< 2) then
515 // new transfer request; build packet
516 if not msg
.Init(NetEvent
.packet
^.data
+1, NetEvent
.packet
^.dataLength
-1, True) then
521 // get resource index
522 ridx
:= msg
.ReadLongInt();
523 if (ridx
< -1) or (ridx
>= length(gExternalResources
)) then
525 e_LogWritefln('Invalid resource index %d', [ridx
], TMsgType
.Warning
);
529 if (ridx
< 0) then fname
:= MapsDir
+gGameSettings
.WAD
else fname
:= {GameDir+'/wads/'+}gExternalResources
[ridx
].diskName
;
530 if (length(fname
) = 0) then
532 e_WriteLog('Invalid filename: '+fname
, TMsgType
.Warning
);
536 tf
.diskName
:= findDiskWad(fname
);
537 //if (length(tf.diskName) = 0) then tf.diskName := findDiskWad(GameDir+'/wads/'+fname);
538 if (length(tf
.diskName
) = 0) then
540 e_LogWritefln('NETWORK: file "%s" not found!', [fname
], TMsgType
.Fatal
);
545 //tf.hash := MD5File(tf.diskName);
546 if (ridx
< 0) then tf
.hash
:= gWADHash
else tf
.hash
:= gExternalResources
[ridx
].hash
;
547 // create file stream
548 tf
.diskName
:= findDiskWad(fname
);
550 tf
.stream
:= openDiskFileRO(tf
.diskName
);
554 if (tf
.stream
= nil) then
556 e_WriteLog(Format('NETWORK: file "%s" not found!', [fname
]), TMsgType
.Fatal
);
560 e_LogWritefln('client #%d requested resource #%d (file is `%s` : `%s`)', [nc
.ID
, ridx
, fname
, tf
.diskName
]);
561 tf
.size
:= tf
.stream
.size
;
562 tf
.chunkSize
:= FILE_CHUNK_SIZE
; // arbitrary
563 tf
.lastSentChunk
:= -1;
564 tf
.lastAckChunk
:= -1;
565 tf
.lastAckTime
:= GetTimerMS();
566 tf
.inProgress
:= False; // waiting for the first ACK or for the cancel
567 GetMem(tf
.diskBuffer
, tf
.chunkSize
);
568 // sent file info message
570 trans_omsg
.Write(Byte(NTF_SERVER_FILE_INFO
));
571 trans_omsg
.Write(tf
.hash
);
572 trans_omsg
.Write(tf
.size
);
573 trans_omsg
.Write(tf
.chunkSize
);
574 trans_omsg
.Write(ExtractFileName(fname
));
575 if not ftransSendServerMsg(nc
^, trans_omsg
) then exit
;
577 NTF_CLIENT_ABORT
: // do not send requested file, or abort current transfer
579 e_LogWritefln('client #%d aborted file transfer', [nc
.ID
]);
580 clearNetClientTransfers(nc
^);
582 NTF_CLIENT_START
: // start transfer; client may resume download by sending non-zero starting chunk
584 if not Assigned(tf
.stream
) then
589 if (tf
.lastSentChunk
<> -1) or (tf
.lastAckChunk
<> -1) or (tf
.inProgress
) then
591 // double ack, get lost
595 if (NetEvent
.packet
^.dataLength
< 2) then
601 if not msg
.Init(NetEvent
.packet
^.data
+1, NetEvent
.packet
^.dataLength
-1, True) then
606 chunk
:= msg
.ReadLongInt();
607 if (chunk
< 0) or (chunk
> (tf
.size
+tf
.chunkSize
-1) div tf
.chunkSize
) then
612 e_LogWritefln('client #%d started file transfer from chunk %d', [nc
.ID
, chunk
]);
613 // start sending chunks
614 tf
.inProgress
:= True;
615 tf
.lastSentChunk
:= chunk
-1;
616 tf
.lastAckChunk
:= chunk
-1;
617 ProcessChunkSend(nc
^);
619 NTF_CLIENT_ACK
: // chunk ack; chunk number follows
621 if not Assigned(tf
.stream
) then
626 if (tf
.lastSentChunk
< 0) or (not tf
.inProgress
) then
628 // double ack, get lost
632 if (NetEvent
.packet
^.dataLength
< 2) then
638 if not msg
.Init(NetEvent
.packet
^.data
+1, NetEvent
.packet
^.dataLength
-1, True) then
643 chunk
:= msg
.ReadLongInt();
644 if (chunk
< 0) or (chunk
> (tf
.size
+tf
.chunkSize
-1) div tf
.chunkSize
) then
649 // do it this way, so client may seek, or request retransfers for some reason
650 tf
.lastAckChunk
:= chunk
;
651 tf
.lastSentChunk
:= chunk
;
652 //e_LogWritefln('client #%d acked file transfer chunk %d', [nc.ID, chunk]);
653 ProcessChunkSend(nc
^);
655 NTF_CLIENT_MAP_REQUEST
:
657 e_LogWritefln('client #%d requested map info', [nc
.ID
]);
659 dfn
:= findDiskWad(MapsDir
+gGameSettings
.WAD
);
660 if (dfn
= '') then dfn
:= '!wad_not_found!.wad'; //FIXME
661 //md5 := MD5File(dfn);
663 if (not GetDiskFileInfo(dfn
, fi
)) then
665 e_LogWritefln('client #%d requested map info, but i cannot get file info', [nc
.ID
]);
671 st := openDiskFileRO(dfn);
672 if not assigned(st) then exit; //wtf?!
677 trans_omsg
.Write(Byte(NTF_SERVER_MAP_INFO
));
679 trans_omsg
.Write(gGameSettings
.WAD
);
681 trans_omsg
.Write(md5
);
683 trans_omsg
.Write(size
);
684 // number of external resources for map
685 trans_omsg
.Write(LongInt(length(gExternalResources
)));
686 // external resource names
687 for f
:= 0 to High(gExternalResources
) do
690 //trans_omsg.Write(ExtractFileName(gExternalResources[f])); // GameDir+'/wads/'+ResList.Strings[i]
692 trans_omsg
.Write('!');
693 trans_omsg
.Write(LongInt(gExternalResources
[f
].size
));
694 trans_omsg
.Write(gExternalResources
[f
].hash
);
695 trans_omsg
.Write(ExtractFileName(gExternalResources
[f
].diskName
));
698 if not ftransSendServerMsg(nc
^, trans_omsg
) then exit
;
709 //**************************************************************************
711 // file transfer crap (both client and server)
713 //**************************************************************************
715 function getNewTimeoutEnd (): Int64;
717 result
:= GetTimerMS();
718 if (g_Net_DownloadTimeout
<= 0) then
720 result
:= result
+1000*60*3; // 3 minutes
724 result
:= result
+trunc(g_Net_DownloadTimeout
*1000);
729 // send map request to server, and wait for "map info" server reply
731 // returns `false` on error or user abort
733 // diskName: map wad file name (without a path)
734 // hash: map wad hash
735 // size: map wad size
736 // chunkSize: set too
737 // resList: list of resource wads
743 // for maps, first `tf.diskName` name will be map wad name, and `tf.hash`/`tf.size` will contain map info
744 function g_Net_Wait_MapInfo (var tf
: TNetFileTransfer
; var resList
: TNetMapResourceInfoArray
): Integer;
750 freePacket
: Boolean = false;
755 ri
: ^TNetMapResourceInfo
;
757 SetLength(resList
, 0);
761 trans_omsg
.Write(Byte(NTF_CLIENT_MAP_REQUEST
));
762 if not ftransSendClientMsg(trans_omsg
) then begin result
:= -1; exit
; end;
764 FillChar(ev
, SizeOf(ev
), 0);
767 ett
:= getNewTimeoutEnd();
769 status
:= enet_host_service(NetHost
, @ev
, 300);
772 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' network error', True);
782 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' timeout reached', True);
791 ENET_EVENT_TYPE_RECEIVE
:
794 if (ev
.channelID
<> NET_CHAN_DOWNLOAD_EX
) then
796 //e_LogWritefln('g_Net_Wait_MapInfo: skip message from non-transfer channel', []);
798 g_Net_Client_HandlePacket(ev
.packet
, g_Net_ClientLightMsgHandler
);
799 if (g_Res_received_map_start
< 0) then begin result
:= -666; exit
; end;
803 ett
:= getNewTimeoutEnd();
804 if (ev
.packet
.dataLength
< 1) then
806 e_LogWritefln('g_Net_Wait_MapInfo: invalid server packet (no data)', []);
810 Ptr
:= ev
.packet
^.data
;
811 rMsgId
:= Byte(Ptr
^);
812 e_LogWritefln('g_Net_Wait_MapInfo: got message %u from server (dataLength=%u)', [rMsgId
, ev
.packet
^.dataLength
]);
813 if (rMsgId
= NTF_SERVER_FILE_INFO
) then
815 e_LogWritefln('g_Net_Wait_MapInfo: waiting for map info reply, but got file info reply', []);
819 else if (rMsgId
= NTF_SERVER_ABORT
) then
821 e_LogWritefln('g_Net_Wait_MapInfo: server aborted transfer', []);
825 else if (rMsgId
= NTF_SERVER_MAP_INFO
) then
827 e_LogWritefln('g_Net_Wait_MapInfo: creating map info packet...', []);
828 if not msg
.Init(ev
.packet
^.data
+1, ev
.packet
^.dataLength
-1, True) then exit
;
829 e_LogWritefln('g_Net_Wait_MapInfo: parsing map info packet (rd=%d; max=%d)...', [msg
.ReadCount
, msg
.MaxSize
]);
830 SetLength(resList
, 0); // just in case
832 tf
.diskName
:= msg
.ReadString();
833 e_LogWritefln('g_Net_Wait_MapInfo: map wad is `%s`', [tf
.diskName
]);
835 tf
.hash
:= msg
.ReadMD5();
837 tf
.size
:= msg
.ReadLongInt();
838 e_LogWritefln('g_Net_Wait_MapInfo: map wad size is %d', [tf
.size
]);
839 // number of external resources for map
840 rc
:= msg
.ReadLongInt();
841 if (rc
< 0) or (rc
> 1024) then
843 e_LogWritefln('g_Net_Wait_Event: invalid number of map external resources (%d)', [rc
]);
847 e_LogWritefln('g_Net_Wait_MapInfo: map external resource count is %d', [rc
]);
848 SetLength(resList
, rc
);
849 // external resource names
850 for f
:= 0 to rc
-1 do
853 s
:= msg
.ReadString();
854 if (length(s
) = 0) then begin result
:= -1; exit
; end;
858 ri
.size
:= msg
.ReadLongInt();
859 ri
.hash
:= msg
.ReadMD5();
860 ri
.wadName
:= ExtractFileName(msg
.ReadString());
861 if (length(ri
.wadName
) = 0) or (ri
.size
< 0) then begin result
:= -1; exit
; end;
865 // old-style packet, only name
866 ri
.wadName
:= ExtractFileName(s
);
867 if (length(ri
.wadName
) = 0) then begin result
:= -1; exit
; end;
868 ri
.size
:= -1; // unknown
871 e_LogWritefln('g_Net_Wait_MapInfo: got map info', []);
872 Result
:= 0; // success
877 e_LogWritefln('g_Net_Wait_Event: invalid server packet type', []);
883 ENET_EVENT_TYPE_DISCONNECT
:
885 if (ev
.data
<= NET_DISC_MAX
) then
886 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' ' + _lc
[TStrings_Locale(Cardinal(I_NET_DISC_NONE
) + ev
.data
)], True);
892 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' unknown ENet event ' + IntToStr(Ord(ev
.kind
)), True);
897 if (freePacket
) then begin freePacket
:= false; enet_packet_destroy(ev
.packet
); end;
900 if g_Net_UserRequestExit() then
902 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' user abort', True);
908 if (freePacket
) then enet_packet_destroy(ev
.packet
);
913 // send file request to server, and wait for server reply
915 // returns `false` on error or user abort
917 // diskName (actually, base name)
926 // for maps, first `tf.diskName` name will be map wad name, and `tf.hash`/`tf.size` will contain map info
927 function g_Net_RequestResFileInfo (resIndex
: LongInt; out tf
: TNetFileTransfer
): Integer;
933 freePacket
: Boolean = false;
939 trans_omsg
.Write(Byte(NTF_CLIENT_FILE_REQUEST
));
940 trans_omsg
.Write(resIndex
);
941 if not ftransSendClientMsg(trans_omsg
) then begin result
:= -1; exit
; end;
943 FillChar(ev
, SizeOf(ev
), 0);
946 ett
:= getNewTimeoutEnd();
948 status
:= enet_host_service(NetHost
, @ev
, 300);
951 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' network error', True);
961 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' timeout reached', True);
970 ENET_EVENT_TYPE_RECEIVE
:
973 if (ev
.channelID
<> NET_CHAN_DOWNLOAD_EX
) then
975 //e_LogWriteln('g_Net_Wait_Event: skip message from non-transfer channel');
977 g_Net_Client_HandlePacket(ev
.packet
, g_Net_ClientLightMsgHandler
);
978 if (g_Res_received_map_start
< 0) then begin result
:= -666; exit
; end;
982 ett
:= getNewTimeoutEnd();
983 if (ev
.packet
.dataLength
< 1) then
985 e_LogWriteln('g_Net_Wait_Event: invalid server packet (no data)');
989 Ptr
:= ev
.packet
^.data
;
990 rMsgId
:= Byte(Ptr
^);
991 e_LogWritefln('received transfer packet with id %d (%u bytes)', [rMsgId
, ev
.packet
^.dataLength
]);
992 if (rMsgId
= NTF_SERVER_FILE_INFO
) then
994 if not msg
.Init(ev
.packet
^.data
+1, ev
.packet
^.dataLength
-1, True) then exit
;
995 tf
.hash
:= msg
.ReadMD5();
996 tf
.size
:= msg
.ReadLongInt();
997 tf
.chunkSize
:= msg
.ReadLongInt();
998 tf
.diskName
:= ExtractFileName(msg
.readString());
999 if (tf
.size
< 0) or (tf
.chunkSize
<> FILE_CHUNK_SIZE
) or (length(tf
.diskName
) = 0) then
1001 e_LogWritefln('g_Net_RequestResFileInfo: invalid file info packet', []);
1005 e_LogWritefln('got file info for resource #%d: size=%d; name=%s', [resIndex
, tf
.size
, tf
.diskName
]);
1006 Result
:= 0; // success
1009 else if (rMsgId
= NTF_SERVER_ABORT
) then
1011 e_LogWriteln('g_Net_RequestResFileInfo: server aborted transfer');
1015 else if (rMsgId
= NTF_SERVER_MAP_INFO
) then
1017 e_LogWriteln('g_Net_RequestResFileInfo: waiting for map info reply, but got file info reply');
1023 e_LogWriteln('g_Net_RequestResFileInfo: invalid server packet type');
1029 ENET_EVENT_TYPE_DISCONNECT
:
1031 if (ev
.data
<= NET_DISC_MAX
) then
1032 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' ' + _lc
[TStrings_Locale(Cardinal(I_NET_DISC_NONE
) + ev
.data
)], True);
1038 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' unknown ENet event ' + IntToStr(Ord(ev
.kind
)), True);
1043 if (freePacket
) then begin freePacket
:= false; enet_packet_destroy(ev
.packet
); end;
1046 if g_Net_UserRequestExit() then
1048 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' user abort', True);
1054 if (freePacket
) then enet_packet_destroy(ev
.packet
);
1059 // call this to cancel file transfer requested by `g_Net_RequestResFileInfo()`
1060 function g_Net_AbortResTransfer (var tf
: TNetFileTransfer
): Boolean;
1063 e_LogWritefln('aborting file transfer...', []);
1066 trans_omsg
.Write(Byte(NTF_CLIENT_ABORT
));
1067 result
:= ftransSendClientMsg(trans_omsg
);
1068 if result
then enet_host_flush(NetHost
);
1072 // call this to start file transfer requested by `g_Net_RequestResFileInfo()`
1074 // returns `false` on error or user abort
1083 // 2 on server abort
1084 // for maps, first `tf.diskName` name will be map wad name, and `tf.hash`/`tf.size` will contain map info
1085 function g_Net_ReceiveResourceFile (resIndex
: LongInt; var tf
: TNetFileTransfer
; strm
: TStream
): Integer;
1091 freePacket
: Boolean = false;
1094 nextChunk
: Integer = 0;
1095 chunkTotal
: Integer;
1102 tf
.resumed
:= false;
1103 e_LogWritefln('file `%s`, size=%d (%d)', [tf
.diskName
, Integer(strm
.size
), tf
.size
], TMsgType
.Notify
);
1104 // check if we should resume downloading
1105 resumed
:= (strm
.size
> tf
.chunkSize
) and (strm
.size
< tf
.size
);
1108 trans_omsg
.Write(Byte(NTF_CLIENT_START
));
1109 if resumed
then chunk
:= strm
.size
div tf
.chunkSize
else chunk
:= 0;
1110 trans_omsg
.Write(LongInt(chunk
));
1111 if not ftransSendClientMsg(trans_omsg
) then begin result
:= -1; exit
; end;
1113 strm
.Seek(chunk
*tf
.chunkSize
, soFromBeginning
);
1114 chunkTotal
:= (tf
.size
+tf
.chunkSize
-1) div tf
.chunkSize
;
1115 e_LogWritefln('receiving file `%s` (%d chunks)', [tf
.diskName
, chunkTotal
], TMsgType
.Notify
);
1116 g_Game_SetLoadingText('downloading "'+ExtractFileName(tf
.diskName
)+'"', chunkTotal
, False);
1117 tf
.resumed
:= resumed
;
1119 if (chunk
> 0) then g_Game_StepLoading(chunk
);
1122 // wait for reply data
1123 FillChar(ev
, SizeOf(ev
), 0);
1125 GetMem(buf
, tf
.chunkSize
);
1127 ett
:= getNewTimeoutEnd();
1129 //stx := -GetTimerMS();
1130 status
:= enet_host_service(NetHost
, @ev
, 300);
1131 if (status
< 0) then
1133 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' network error', True);
1137 if (status
= 0) then
1139 // check for timeout
1143 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' timeout reached', True);
1152 ENET_EVENT_TYPE_RECEIVE
:
1155 if (ev
.channelID
<> NET_CHAN_DOWNLOAD_EX
) then
1157 //e_LogWritefln('g_Net_Wait_Event: skip message from non-transfer channel', []);
1158 freePacket
:= false;
1159 g_Net_Client_HandlePacket(ev
.packet
, g_Net_ClientLightMsgHandler
);
1160 if (g_Res_received_map_start
< 0) then begin result
:= -666; exit
; end;
1164 //stx := stx+GetTimerMS();
1165 //e_LogWritefln('g_Net_ReceiveResourceFile: stx=%d', [Integer(stx)]);
1166 //stx := -GetTimerMS();
1167 ett
:= getNewTimeoutEnd();
1168 if (ev
.packet
.dataLength
< 1) then
1170 e_LogWritefln('g_Net_ReceiveResourceFile: invalid server packet (no data)', []);
1174 Ptr
:= ev
.packet
^.data
;
1175 rMsgId
:= Byte(Ptr
^);
1176 if (rMsgId
= NTF_SERVER_DONE
) then
1178 e_LogWritefln('file transfer complete.', []);
1182 else if (rMsgId
= NTF_SERVER_CHUNK
) then
1184 if not msg
.Init(ev
.packet
^.data
+1, ev
.packet
^.dataLength
-1, True) then exit
;
1185 chunk
:= msg
.ReadLongInt();
1186 csize
:= msg
.ReadLongInt();
1187 if (chunk
<> nextChunk
) then
1189 e_LogWritefln('received chunk %d, but expected chunk %d', [chunk
, nextChunk
]);
1193 if (csize
< 0) or (csize
> tf
.chunkSize
) then
1195 e_LogWritefln('received chunk with size %d, but expected chunk size is %d', [csize
, tf
.chunkSize
]);
1199 //e_LogWritefln('got chunk #%d of #%d (csize=%d)', [chunk, (tf.size+tf.chunkSize-1) div tf.chunkSize, csize]);
1200 msg
.ReadData(buf
, csize
);
1201 strm
.WriteBuffer(buf
^, csize
);
1202 nextChunk
:= chunk
+1;
1203 g_Game_StepLoading();
1206 trans_omsg
.Write(Byte(NTF_CLIENT_ACK
));
1207 trans_omsg
.Write(LongInt(chunk
));
1208 if not ftransSendClientMsg(trans_omsg
) then begin result
:= -1; exit
; end;
1210 else if (rMsgId
= NTF_SERVER_ABORT
) then
1212 e_LogWritefln('g_Net_ReceiveResourceFile: server aborted transfer', []);
1218 e_LogWritefln('g_Net_ReceiveResourceFile: invalid server packet type', []);
1222 //stx := stx+GetTimerMS();
1223 //e_LogWritefln('g_Net_ReceiveResourceFile: process stx=%d', [Integer(stx)]);
1226 ENET_EVENT_TYPE_DISCONNECT
:
1228 if (ev
.data
<= NET_DISC_MAX
) then
1229 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' ' + _lc
[TStrings_Locale(Cardinal(I_NET_DISC_NONE
) + ev
.data
)], True);
1235 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' unknown ENet event ' + IntToStr(Ord(ev
.kind
)), True);
1240 if (freePacket
) then begin freePacket
:= false; enet_packet_destroy(ev
.packet
); end;
1243 if g_Net_UserRequestExit() then
1245 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CONN
] + ' user abort', True);
1252 if (freePacket
) then enet_packet_destroy(ev
.packet
);
1257 //**************************************************************************
1261 //**************************************************************************
1263 function g_Net_FindSlot(): Integer;
1272 for I
:= Low(NetClients
) to High(NetClients
) do
1274 if NetClients
[I
].Used
then
1283 if C
>= NetMaxClients
then
1291 if (Length(NetClients
) >= NetMaxClients
) then
1295 SetLength(NetClients
, Length(NetClients
) + 1);
1296 N
:= High(NetClients
);
1302 NetClients
[N
].Used
:= True;
1303 NetClients
[N
].ID
:= N
;
1304 NetClients
[N
].RequestedFullUpdate
:= False;
1305 NetClients
[N
].WaitForFirstSpawn
:= False;
1306 NetClients
[N
].RCONAuth
:= False;
1307 NetClients
[N
].Voted
:= False;
1308 NetClients
[N
].Player
:= 0;
1309 clearNetClientTransfers(NetClients
[N
]); // just in case
1316 function g_Net_Init(): Boolean;
1324 NetBuf
[NET_UNRELIABLE
].Clear();
1325 NetBuf
[NET_RELIABLE
].Clear();
1326 //SetLength(NetClients, 0);
1327 clearNetClients(true); // clear array
1333 NetAddr
.port
:= 25666;
1334 SetLength(NetBannedHosts
, 0);
1335 if FileExists(DataDir
+ BANLIST_FILENAME
) then
1337 Assign(F
, DataDir
+ BANLIST_FILENAME
);
1342 if StrToIp(IPstr
, IP
) then
1346 g_Net_SaveBanList();
1349 //Result := (enet_initialize() = 0);
1350 Result
:= enet_init_success
;
1353 procedure g_Net_Flush();
1357 F
, Chan
: enet_uint32
;
1361 Chan
:= NET_CHAN_GAME
;
1363 if NetMode
= NET_SERVER
then
1364 for T
:= NET_UNRELIABLE
to NET_RELIABLE
do
1366 if NetBuf
[T
].CurSize
> 0 then
1368 P
:= enet_packet_create(NetBuf
[T
].Data
, NetBuf
[T
].CurSize
, F
);
1369 if not Assigned(P
) then continue
;
1370 enet_host_broadcast(NetHost
, Chan
, P
);
1374 for I
:= Low(NetClients
) to High(NetClients
) do
1376 if not NetClients
[I
].Used
then continue
;
1377 if NetClients
[I
].NetOut
[T
].CurSize
<= 0 then continue
;
1378 P
:= enet_packet_create(NetClients
[I
].NetOut
[T
].Data
, NetClients
[I
].NetOut
[T
].CurSize
, F
);
1379 if not Assigned(P
) then continue
;
1380 enet_peer_send(NetClients
[I
].Peer
, Chan
, P
);
1381 NetClients
[I
].NetOut
[T
].Clear();
1384 // next and last iteration is always RELIABLE
1385 F
:= LongWord(ENET_PACKET_FLAG_RELIABLE
);
1386 Chan
:= NET_CHAN_IMPORTANT
;
1388 else if NetMode
= NET_CLIENT
then
1389 for T
:= NET_UNRELIABLE
to NET_RELIABLE
do
1391 if NetBuf
[T
].CurSize
> 0 then
1393 P
:= enet_packet_create(NetBuf
[T
].Data
, NetBuf
[T
].CurSize
, F
);
1394 if not Assigned(P
) then continue
;
1395 enet_peer_send(NetPeer
, Chan
, P
);
1398 // next and last iteration is always RELIABLE
1399 F
:= LongWord(ENET_PACKET_FLAG_RELIABLE
);
1400 Chan
:= NET_CHAN_IMPORTANT
;
1404 procedure g_Net_Cleanup();
1408 NetBuf
[NET_UNRELIABLE
].Clear();
1409 NetBuf
[NET_RELIABLE
].Clear();
1411 //SetLength(NetClients, 0);
1412 clearNetClients(true); // clear array
1413 NetClientCount
:= 0;
1417 g_Net_Slist_ServerClosed();
1421 NetState
:= NET_STATE_NONE
;
1423 NetPongSock
:= ENET_SOCKET_NULL
;
1425 NetTimeToMaster
:= 0;
1426 NetTimeToUpdate
:= 0;
1427 NetTimeToReliable
:= 0;
1429 NetMode
:= NET_NONE
;
1431 if NetPortThread
<> NilThreadId
then
1432 WaitForThreadTerminate(NetPortThread
, 66666);
1434 NetPortThread
:= NilThreadId
;
1435 g_Net_UnforwardPorts();
1441 procedure g_Net_Free();
1445 //enet_deinitialize();
1446 NetInitDone
:= False;
1450 //**************************************************************************
1454 //**************************************************************************
1456 function ForwardThread(Param
: Pointer): PtrInt
;
1459 if not g_Net_ForwardPorts() then Result
:= -1;
1462 function g_Net_Host(IPAddr
: LongWord; Port
: enet_uint16
; MaxClients
: Cardinal = 16): Boolean;
1464 if NetMode
<> NET_NONE
then
1466 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_INGAME
]);
1473 g_Console_Add(_lc
[I_NET_MSG
] + Format(_lc
[I_NET_MSG_HOST
], [Port
]));
1474 if not NetInitDone
then
1476 if (not g_Net_Init()) then
1478 g_Console_Add(_lc
[I_NET_MSG_FERROR
] + _lc
[I_NET_ERR_ENET
]);
1483 NetInitDone
:= True;
1486 NetAddr
.host
:= IPAddr
;
1487 NetAddr
.port
:= Port
;
1489 if NetForwardPorts
then NetPortThread
:= BeginThread(ForwardThread
);
1491 NetHost
:= enet_host_create(@NetAddr
, NET_MAXCLIENTS
, NET_CHANS
, 0, 0);
1493 if (NetHost
= nil) then
1495 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + Format(_lc
[I_NET_ERR_HOST
], [Port
]));
1501 NetPongSock
:= enet_socket_create(ENET_SOCKET_TYPE_DATAGRAM
);
1502 if NetPongSock
<> ENET_SOCKET_NULL
then
1504 NetPongAddr
.host
:= IPAddr
;
1505 NetPongAddr
.port
:= NET_PING_PORT
;
1506 if enet_socket_bind(NetPongSock
, @NetPongAddr
) < 0 then
1508 enet_socket_destroy(NetPongSock
);
1509 NetPongSock
:= ENET_SOCKET_NULL
;
1512 enet_socket_set_option(NetPongSock
, ENET_SOCKOPT_NONBLOCK
, 1);
1515 NetMode
:= NET_SERVER
;
1517 NetBuf
[NET_UNRELIABLE
].Clear();
1518 NetBuf
[NET_RELIABLE
].Clear();
1524 procedure g_Net_Host_Die();
1528 if NetMode
<> NET_SERVER
then Exit
;
1530 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_HOST_DISCALL
]);
1531 for I
:= 0 to High(NetClients
) do
1532 if NetClients
[I
].Used
then
1533 enet_peer_disconnect(NetClients
[I
].Peer
, NET_DISC_DOWN
);
1535 while enet_host_service(NetHost
, @NetEvent
, 1000) > 0 do
1536 if NetEvent
.kind
= ENET_EVENT_TYPE_RECEIVE
then
1537 enet_packet_destroy(NetEvent
.packet
);
1539 for I
:= 0 to High(NetClients
) do
1540 if NetClients
[I
].Used
then
1542 FreeMemory(NetClients
[I
].Peer
^.data
);
1543 NetClients
[I
].Peer
^.data
:= nil;
1544 enet_peer_reset(NetClients
[I
].Peer
);
1545 NetClients
[I
].Peer
:= nil;
1546 NetClients
[I
].Used
:= False;
1547 NetClients
[I
].NetOut
[NET_UNRELIABLE
].Free();
1548 NetClients
[I
].NetOut
[NET_RELIABLE
].Free();
1551 clearNetClients(false); // don't clear array
1552 g_Net_Slist_ServerClosed();
1553 if NetPongSock
<> ENET_SOCKET_NULL
then
1554 enet_socket_destroy(NetPongSock
);
1556 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_HOST_DIE
]);
1557 enet_host_destroy(NetHost
);
1559 NetMode
:= NET_NONE
;
1562 e_WriteLog('NET: Server stopped', TMsgType
.Notify
);
1566 procedure g_Net_Host_Send(ID
: Integer; Reliable
: Boolean; Chan
: Byte = NET_CHAN_GAME
);
1573 T
:= NET_UNRELIABLE
;
1577 if ID
> High(NetClients
) then Exit
;
1578 if NetClients
[ID
].Peer
= nil then Exit
;
1580 NetClients
[ID
].NetOut
[T
].Write(Integer(NetOut
.CurSize
));
1581 NetClients
[ID
].NetOut
[T
].Write(NetOut
);
1586 NetBuf
[T
].Write(Integer(NetOut
.CurSize
));
1587 NetBuf
[T
].Write(NetOut
);
1590 if NetDump
then g_Net_DumpSendBuffer();
1594 procedure g_Net_Host_CheckPings();
1596 ClAddr
: ENetAddress
;
1600 Ping
: array [0..9] of Byte;
1603 if NetPongSock
= ENET_SOCKET_NULL
then Exit
;
1605 Buf
.data
:= Addr(Ping
[0]);
1606 Buf
.dataLength
:= 2+8;
1610 Len
:= enet_socket_receive(NetPongSock
, @ClAddr
, @Buf
, 1);
1611 if Len
< 0 then Exit
;
1613 if (Ping
[0] = Ord('D')) and (Ping
[1] = Ord('F')) then
1615 ClTime
:= Int64(Addr(Ping
[2])^);
1618 NetOut
.Write(Byte(Ord('D')));
1619 NetOut
.Write(Byte(Ord('F')));
1620 NetOut
.Write(NetPort
);
1621 NetOut
.Write(ClTime
);
1622 TMasterHost
.writeInfo(NetOut
);
1624 if gPlayer1
<> nil then Inc(NPl
);
1625 if gPlayer2
<> nil then Inc(NPl
);
1627 NetOut
.Write(gNumBots
);
1629 Buf
.data
:= NetOut
.Data
;
1630 Buf
.dataLength
:= NetOut
.CurSize
;
1631 enet_socket_send(NetPongSock
, @ClAddr
, @Buf
, 1);
1638 function g_Net_Host_Update(): enet_size_t
;
1649 if NetUseMaster
then g_Net_Slist_Pulse();
1650 g_Net_Host_CheckPings();
1652 while (enet_host_service(NetHost
, @NetEvent
, 0) > 0) do
1654 case (NetEvent
.kind
) of
1655 ENET_EVENT_TYPE_CONNECT
:
1657 IP
:= IpToStr(NetEvent
.Peer
^.address
.host
);
1658 Port
:= NetEvent
.Peer
^.address
.port
;
1659 g_Console_Add(_lc
[I_NET_MSG
] +
1660 Format(_lc
[I_NET_MSG_HOST_CONN
], [IP
, Port
]));
1662 if (NetEvent
.data
<> NET_PROTOCOL_VER
) then
1664 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_HOST_REJECT
] +
1665 _lc
[I_NET_DISC_PROTOCOL
]);
1666 NetEvent
.peer
^.data
:= GetMemory(SizeOf(Byte));
1667 Byte(NetEvent
.peer
^.data
^) := 255;
1668 enet_peer_disconnect(NetEvent
.peer
, NET_DISC_PROTOCOL
);
1669 enet_host_flush(NetHost
);
1673 ID
:= g_Net_FindSlot();
1677 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_HOST_REJECT
] +
1678 _lc
[I_NET_DISC_FULL
]);
1679 NetEvent
.Peer
^.data
:= GetMemory(SizeOf(Byte));
1680 Byte(NetEvent
.peer
^.data
^) := 255;
1681 enet_peer_disconnect(NetEvent
.peer
, NET_DISC_FULL
);
1682 enet_host_flush(NetHost
);
1686 NetClients
[ID
].Peer
:= NetEvent
.peer
;
1687 NetClients
[ID
].Peer
^.data
:= GetMemory(SizeOf(Byte));
1688 Byte(NetClients
[ID
].Peer
^.data
^) := ID
;
1689 NetClients
[ID
].State
:= NET_STATE_AUTH
;
1690 NetClients
[ID
].RCONAuth
:= False;
1691 NetClients
[ID
].NetOut
[NET_UNRELIABLE
].Alloc(NET_BUFSIZE
*2);
1692 NetClients
[ID
].NetOut
[NET_RELIABLE
].Alloc(NET_BUFSIZE
*2);
1693 clearNetClientTransfers(NetClients
[ID
]); // just in case
1695 enet_peer_timeout(NetEvent
.peer
, ENET_PEER_TIMEOUT_LIMIT
* 2, ENET_PEER_TIMEOUT_MINIMUM
* 2, ENET_PEER_TIMEOUT_MAXIMUM
* 2);
1697 Inc(NetClientCount
);
1698 g_Console_Add(_lc
[I_NET_MSG
] + Format(_lc
[I_NET_MSG_HOST_ADD
], [ID
]));
1701 ENET_EVENT_TYPE_RECEIVE
:
1703 //e_LogWritefln('RECEIVE: chan=%u', [NetEvent.channelID]);
1704 if (NetEvent
.channelID
= NET_CHAN_DOWNLOAD_EX
) then
1706 ProcessDownloadExPacket();
1710 ID
:= Byte(NetEvent
.peer
^.data
^);
1711 if ID
> High(NetClients
) then Exit
;
1712 TC
:= @NetClients
[ID
];
1714 if NetDump
then g_Net_DumpRecvBuffer(NetEvent
.packet
^.data
, NetEvent
.packet
^.dataLength
);
1715 g_Net_Host_HandlePacket(TC
, NetEvent
.packet
, g_Net_HostMsgHandler
);
1719 ENET_EVENT_TYPE_DISCONNECT
:
1721 ID
:= Byte(NetEvent
.peer
^.data
^);
1722 if ID
> High(NetClients
) then Exit
;
1723 clearNetClient(NetClients
[ID
]);
1724 TC
:= @NetClients
[ID
];
1725 if TC
= nil then Exit
;
1727 if not (TC
^.Used
) then Exit
;
1729 TP
:= g_Player_Get(TC
^.Player
);
1734 TP
.Kill(K_SIMPLEKILL
, 0, HIT_DISCON
);
1735 g_Console_Add(Format(_lc
[I_PLAYER_LEAVE
], [TP
.Name
]), True);
1736 e_WriteLog('NET: Client ' + TP
.Name
+ ' [' + IntToStr(ID
) + '] disconnected.', TMsgType
.Notify
);
1737 g_Player_Remove(TP
.UID
);
1741 TC
^.State
:= NET_STATE_NONE
;
1744 TC
^.RequestedFullUpdate
:= False;
1745 TC
^.WaitForFirstSpawn
:= False;
1746 TC
^.NetOut
[NET_UNRELIABLE
].Free();
1747 TC
^.NetOut
[NET_RELIABLE
].Free();
1749 FreeMemory(NetEvent
.peer
^.data
);
1750 NetEvent
.peer
^.data
:= nil;
1751 g_Console_Add(_lc
[I_NET_MSG
] + Format(_lc
[I_NET_MSG_HOST_DISC
], [ID
]));
1752 Dec(NetClientCount
);
1754 if NetUseMaster
then g_Net_Slist_ServerPlayerLeaves();
1761 //**************************************************************************
1765 //**************************************************************************
1767 procedure g_Net_Disconnect(Forced
: Boolean = False);
1769 if NetMode
<> NET_CLIENT
then Exit
;
1770 if (NetHost
= nil) or (NetPeer
= nil) then Exit
;
1774 enet_peer_disconnect(NetPeer
, NET_DISC_NONE
);
1776 while (enet_host_service(NetHost
, @NetEvent
, 1500) > 0) do
1778 if (NetEvent
.kind
= ENET_EVENT_TYPE_DISCONNECT
) then
1784 if (NetEvent
.kind
= ENET_EVENT_TYPE_RECEIVE
) then
1785 enet_packet_destroy(NetEvent
.packet
);
1788 if NetPeer
<> nil then
1790 enet_peer_reset(NetPeer
);
1796 e_WriteLog('NET: Kicked from server: ' + IntToStr(NetEvent
.data
), TMsgType
.Notify
);
1797 if (NetEvent
.data
<= NET_DISC_MAX
) then
1798 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_KICK
] +
1799 _lc
[TStrings_Locale(Cardinal(I_NET_DISC_NONE
) + NetEvent
.data
)], True);
1802 if NetHost
<> nil then
1804 enet_host_destroy(NetHost
);
1807 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_CLIENT_DISC
]);
1810 e_WriteLog('NET: Disconnected', TMsgType
.Notify
);
1813 procedure g_Net_Client_Send(Reliable
: Boolean; Chan
: Byte = NET_CHAN_GAME
);
1820 T
:= NET_UNRELIABLE
;
1823 NetBuf
[T
].Write(Integer(NetOut
.CurSize
));
1824 NetBuf
[T
].Write(NetOut
);
1826 if NetDump
then g_Net_DumpSendBuffer();
1828 g_Net_Flush(); // FIXME: for now, send immediately
1831 function g_Net_Client_Update(): enet_size_t
;
1834 while (enet_host_service(NetHost
, @NetEvent
, 0) > 0) do
1836 case NetEvent
.kind
of
1837 ENET_EVENT_TYPE_RECEIVE
:
1839 if (NetEvent
.channelID
= NET_CHAN_DOWNLOAD_EX
) then continue
; // ignore all download packets, they're processed by separate code
1840 if NetDump
then g_Net_DumpRecvBuffer(NetEvent
.packet
^.data
, NetEvent
.packet
^.dataLength
);
1841 g_Net_Client_HandlePacket(NetEvent
.packet
, g_Net_ClientMsgHandler
);
1844 ENET_EVENT_TYPE_DISCONNECT
:
1846 g_Net_Disconnect(True);
1854 function g_Net_Client_UpdateWhileLoading(): enet_size_t
;
1857 while (enet_host_service(NetHost
, @NetEvent
, 0) > 0) do
1859 case NetEvent
.kind
of
1860 ENET_EVENT_TYPE_RECEIVE
:
1862 if (NetEvent
.channelID
= NET_CHAN_DOWNLOAD_EX
) then continue
; // ignore all download packets, they're processed by separate code
1863 if NetDump
then g_Net_DumpRecvBuffer(NetEvent
.packet
^.data
, NetEvent
.packet
^.dataLength
);
1864 g_Net_Client_HandlePacket(NetEvent
.packet
, g_Net_ClientLightMsgHandler
);
1867 ENET_EVENT_TYPE_DISCONNECT
:
1869 g_Net_Disconnect(True);
1878 function g_Net_Connect(IP
: string; Port
: enet_uint16
): Boolean;
1881 TimeoutTime
, T
: Int64;
1883 if NetMode
<> NET_NONE
then
1885 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_ERR_INGAME
], True);
1892 g_Console_Add(_lc
[I_NET_MSG
] + Format(_lc
[I_NET_MSG_CLIENT_CONN
],
1894 if not NetInitDone
then
1896 if (not g_Net_Init()) then
1898 g_Console_Add(_lc
[I_NET_MSG_FERROR
] + _lc
[I_NET_ERR_ENET
], True);
1903 NetInitDone
:= True;
1906 NetHost
:= enet_host_create(nil, 1, NET_CHANS
, 0, 0);
1908 if (NetHost
= nil) then
1910 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CLIENT
], True);
1916 enet_address_set_host(@NetAddr
, PChar(Addr(IP
[1])));
1917 NetAddr
.port
:= Port
;
1919 NetPeer
:= enet_host_connect(NetHost
, @NetAddr
, NET_CHANS
, NET_PROTOCOL_VER
);
1921 if (NetPeer
= nil) then
1923 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_CLIENT
], True);
1924 enet_host_destroy(NetHost
);
1930 // предупредить что ждем слишком долго через N секунд
1931 TimeoutTime
:= sys_GetTicks() + NET_CONNECT_TIMEOUT
;
1936 while (enet_host_service(NetHost
, @NetEvent
, 0) > 0) do
1938 if (NetEvent
.kind
= ENET_EVENT_TYPE_CONNECT
) then
1940 g_Console_Add(_lc
[I_NET_MSG
] + _lc
[I_NET_MSG_CLIENT_DONE
]);
1941 NetMode
:= NET_CLIENT
;
1943 enet_peer_timeout(NetPeer
, ENET_PEER_TIMEOUT_LIMIT
* 2, ENET_PEER_TIMEOUT_MINIMUM
* 2, ENET_PEER_TIMEOUT_MAXIMUM
* 2);
1945 NetClientPort
:= Port
;
1952 T
:= sys_GetTicks();
1953 if T
> TimeoutTime
then
1955 TimeoutTime
:= T
+ NET_CONNECT_TIMEOUT
* 100; // одного предупреждения хватит
1956 g_Console_Add(_lc
[I_NET_MSG_TIMEOUT_WARN
], True);
1957 g_Console_Add(Format(_lc
[I_NET_MSG_PORTS
], [Integer(Port
), Integer(NET_PING_PORT
)]), True);
1960 ProcessLoading(true);
1962 if e_KeyPressed(IK_SPACE
) or e_KeyPressed(IK_ESCAPE
) or e_KeyPressed(VK_ESCAPE
) or
1963 e_KeyPressed(JOY0_JUMP
) or e_KeyPressed(JOY1_JUMP
) or e_KeyPressed(JOY2_JUMP
) or e_KeyPressed(JOY3_JUMP
) then
1967 g_Console_Add(_lc
[I_NET_MSG_ERROR
] + _lc
[I_NET_ERR_TIMEOUT
], True);
1968 g_Console_Add(Format(_lc
[I_NET_MSG_PORTS
], [Integer(Port
), Integer(NET_PING_PORT
)]), True);
1969 if NetPeer
<> nil then enet_peer_reset(NetPeer
);
1970 if NetHost
<> nil then
1972 enet_host_destroy(NetHost
);
1979 function IpToStr(IP
: LongWord): string;
1984 Result
:= IntToStr(PByte(Ptr
+ 0)^) + '.';
1985 Result
:= Result
+ IntToStr(PByte(Ptr
+ 1)^) + '.';
1986 Result
:= Result
+ IntToStr(PByte(Ptr
+ 2)^) + '.';
1987 Result
:= Result
+ IntToStr(PByte(Ptr
+ 3)^);
1990 function StrToIp(IPstr
: string; var IP
: LongWord): Boolean;
1994 Result
:= enet_address_set_host(@EAddr
, PChar(@IPstr
[1])) = 0;
1998 function g_Net_Client_ByName(Name
: string): pTNetClient
;
2004 for a
:= Low(NetClients
) to High(NetClients
) do
2005 if (NetClients
[a
].Used
) and (NetClients
[a
].State
= NET_STATE_GAME
) then
2007 pl
:= g_Player_Get(NetClients
[a
].Player
);
2008 if pl
= nil then continue
;
2009 if Copy(LowerCase(pl
.Name
), 1, Length(Name
)) <> LowerCase(Name
) then continue
;
2010 if NetClients
[a
].Peer
<> nil then
2012 Result
:= @NetClients
[a
];
2018 function g_Net_Client_ByPlayer(PID
: Word): pTNetClient
;
2023 for a
:= Low(NetClients
) to High(NetClients
) do
2024 if (NetClients
[a
].Used
) and (NetClients
[a
].State
= NET_STATE_GAME
) then
2025 if NetClients
[a
].Player
= PID
then
2027 Result
:= @NetClients
[a
];
2032 function g_Net_ClientName_ByID(ID
: Integer): string;
2038 if ID
= NET_EVERYONE
then
2040 for a
:= Low(NetClients
) to High(NetClients
) do
2041 if (NetClients
[a
].ID
= ID
) and (NetClients
[a
].Used
) and (NetClients
[a
].State
= NET_STATE_GAME
) then
2043 pl
:= g_Player_Get(NetClients
[a
].Player
);
2044 if pl
= nil then Exit
;
2049 procedure g_Net_SendData(Data
: AByte
; peer
: pENetPeer
; Reliable
: Boolean; Chan
: Byte = NET_CHAN_DOWNLOAD
);
2053 dataLength
: Cardinal;
2055 dataLength
:= Length(Data
);
2058 F
:= LongWord(ENET_PACKET_FLAG_RELIABLE
)
2062 if (peer
<> nil) then
2064 P
:= enet_packet_create(@Data
[0], dataLength
, F
);
2065 if not Assigned(P
) then Exit
;
2066 enet_peer_send(peer
, Chan
, P
);
2070 P
:= enet_packet_create(@Data
[0], dataLength
, F
);
2071 if not Assigned(P
) then Exit
;
2072 enet_host_broadcast(NetHost
, Chan
, P
);
2075 enet_host_flush(NetHost
);
2078 function g_Net_IsHostBanned(IP
: LongWord; Perm
: Boolean = False): Boolean;
2083 if NetBannedHosts
= nil then
2085 for I
:= 0 to High(NetBannedHosts
) do
2086 if (NetBannedHosts
[I
].IP
= IP
) and ((not Perm
) or (NetBannedHosts
[I
].Perm
)) then
2093 procedure g_Net_BanHost(IP
: LongWord; Perm
: Boolean = True); overload
;
2099 if g_Net_IsHostBanned(IP
, Perm
) then
2103 for I
:= Low(NetBannedHosts
) to High(NetBannedHosts
) do
2104 if NetBannedHosts
[I
].IP
= 0 then
2112 SetLength(NetBannedHosts
, Length(NetBannedHosts
) + 1);
2113 P
:= High(NetBannedHosts
);
2116 NetBannedHosts
[P
].IP
:= IP
;
2117 NetBannedHosts
[P
].Perm
:= Perm
;
2120 procedure g_Net_BanHost(IP
: string; Perm
: Boolean = True); overload
;
2125 b
:= StrToIp(IP
, a
);
2127 g_Net_BanHost(a
, Perm
);
2130 procedure g_Net_UnbanNonPermHosts();
2134 if NetBannedHosts
= nil then
2136 for I
:= Low(NetBannedHosts
) to High(NetBannedHosts
) do
2137 if (NetBannedHosts
[I
].IP
> 0) and not NetBannedHosts
[I
].Perm
then
2139 NetBannedHosts
[I
].IP
:= 0;
2140 NetBannedHosts
[I
].Perm
:= True;
2144 function g_Net_UnbanHost(IP
: string): Boolean; overload
;
2148 Result
:= StrToIp(IP
, a
);
2150 Result
:= g_Net_UnbanHost(a
);
2153 function g_Net_UnbanHost(IP
: LongWord): Boolean; overload
;
2160 if NetBannedHosts
= nil then
2162 for I
:= 0 to High(NetBannedHosts
) do
2163 if NetBannedHosts
[I
].IP
= IP
then
2165 NetBannedHosts
[I
].IP
:= 0;
2166 NetBannedHosts
[I
].Perm
:= True;
2168 // no break here to clear all bans of this host, perm and non-perm
2172 procedure g_Net_SaveBanList();
2177 Assign(F
, DataDir
+ BANLIST_FILENAME
);
2179 if NetBannedHosts
<> nil then
2180 for I
:= 0 to High(NetBannedHosts
) do
2181 if NetBannedHosts
[I
].Perm
and (NetBannedHosts
[I
].IP
> 0) then
2182 Writeln(F
, IpToStr(NetBannedHosts
[I
].IP
));
2186 procedure g_Net_DumpStart();
2188 if NetMode
= NET_SERVER
then
2189 NetDumpFile
:= createDiskFile(NETDUMP_FILENAME
+ '_server')
2191 NetDumpFile
:= createDiskFile(NETDUMP_FILENAME
+ '_client');
2194 procedure g_Net_DumpSendBuffer();
2196 writeInt(NetDumpFile
, gTime
);
2197 writeInt(NetDumpFile
, LongWord(NetOut
.CurSize
));
2198 writeInt(NetDumpFile
, Byte(1));
2199 NetDumpFile
.WriteBuffer(NetOut
.Data
^, NetOut
.CurSize
);
2202 procedure g_Net_DumpRecvBuffer(Buf
: penet_uint8
; Len
: LongWord);
2204 if (Buf
= nil) or (Len
= 0) then Exit
;
2205 writeInt(NetDumpFile
, gTime
);
2206 writeInt(NetDumpFile
, Len
);
2207 writeInt(NetDumpFile
, Byte(0));
2208 NetDumpFile
.WriteBuffer(Buf
^, Len
);
2211 procedure g_Net_DumpEnd();
2217 function g_Net_ForwardPorts(ForwardPongPort
: Boolean = True): Boolean;
2218 {$IFDEF USE_MINIUPNPC}
2223 LanAddr
: array [0..255] of Char;
2224 StrPort
: AnsiString;
2229 if NetPortForwarded
= NetPort
then
2235 NetPongForwarded
:= False;
2236 NetPortForwarded
:= 0;
2238 DevList
:= upnpDiscover(1000, nil, nil, 0, 0, 2, Addr(Err
));
2239 if DevList
= nil then
2241 conwritefln('port forwarding failed: upnpDiscover() failed: %d', [Err
]);
2245 I
:= UPNP_GetValidIGD(DevList
, @Urls
, @Data
, Addr(LanAddr
[0]), 256);
2249 conwriteln('port forwarding failed: could not find an IGD device on this LAN');
2250 FreeUPNPDevList(DevList
);
2251 FreeUPNPUrls(@Urls
);
2255 StrPort
:= IntToStr(NetPort
);
2256 I
:= UPNP_AddPortMapping(
2257 Urls
.controlURL
, Addr(data
.first
.servicetype
[1]),
2258 PChar(StrPort
), PChar(StrPort
), Addr(LanAddr
[0]), PChar('D2DF'),
2259 PChar('UDP'), nil, PChar('0')
2264 conwritefln('forwarding port %d failed: error %d', [NetPort
, I
]);
2265 FreeUPNPDevList(DevList
);
2266 FreeUPNPUrls(@Urls
);
2270 if ForwardPongPort
then
2272 StrPort
:= IntToStr(NET_PING_PORT
);
2273 I
:= UPNP_AddPortMapping(
2274 Urls
.controlURL
, Addr(data
.first
.servicetype
[1]),
2275 PChar(StrPort
), PChar(StrPort
), Addr(LanAddr
[0]), PChar('D2DF'),
2276 PChar('UDP'), nil, PChar('0')
2281 conwritefln('forwarding port %d failed: error %d', [NetPort
+ 1, I
]);
2282 NetPongForwarded
:= False;
2286 conwritefln('forwarded port %d successfully', [NetPort
+ 1]);
2287 NetPongForwarded
:= True;
2291 conwritefln('forwarded port %d successfully', [NetPort
]);
2292 NetIGDControl
:= AnsiString(Urls
.controlURL
);
2293 NetIGDService
:= data
.first
.servicetype
;
2294 NetPortForwarded
:= NetPort
;
2296 FreeUPNPDevList(DevList
);
2297 FreeUPNPUrls(@Urls
);
2306 procedure g_Net_UnforwardPorts();
2307 {$IFDEF USE_MINIUPNPC}
2310 StrPort
: AnsiString;
2312 if NetPortForwarded
= 0 then Exit
;
2314 conwriteln('unforwarding ports...');
2316 StrPort
:= IntToStr(NetPortForwarded
);
2317 I
:= UPNP_DeletePortMapping(
2318 PChar(NetIGDControl
), Addr(NetIGDService
[1]),
2319 PChar(StrPort
), PChar('UDP'), nil
2321 conwritefln(' port %d: %d', [NetPortForwarded
, I
]);
2323 if NetPongForwarded
then
2325 NetPongForwarded
:= False;
2326 StrPort
:= IntToStr(NetPortForwarded
+ 1);
2327 I
:= UPNP_DeletePortMapping(
2328 PChar(NetIGDControl
), Addr(NetIGDService
[1]),
2329 PChar(StrPort
), PChar('UDP'), nil
2331 conwritefln(' port %d: %d', [NetPortForwarded
+ 1, I
]);
2334 NetPortForwarded
:= 0;
2343 conRegVar('cl_downloadtimeout', @g_Net_DownloadTimeout
, 0.0, 1000000.0, '', 'timeout in seconds, 0 to disable it');
2344 SetLength(NetClients
, 0);
2345 g_Net_DownloadTimeout
:= 60;
2346 NetIn
.Alloc(NET_BUFSIZE
);
2347 NetOut
.Alloc(NET_BUFSIZE
);
2348 NetBuf
[NET_UNRELIABLE
].Alloc(NET_BUFSIZE
*2);
2349 NetBuf
[NET_RELIABLE
].Alloc(NET_BUFSIZE
*2);
2350 trans_omsg
.Alloc(NET_BUFSIZE
);
2354 NetBuf
[NET_UNRELIABLE
].Free();
2355 NetBuf
[NET_RELIABLE
].Free();