2 Copyright (C) 1996-1997 Id Software, Inc.
3 Copyright (C) 2002 Mathieu Olivier
4 Copyright (C) 2003 Forest Hale
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 See the GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #define QWMASTER_PORT 27000
27 #define DPMASTER_PORT 27950
29 // note this defaults on for dedicated servers, off for listen servers
30 cvar_t sv_public = {0, "sv_public", "0", "advertises this server on the master server (so that players can find it in the server browser)"};
31 static cvar_t sv_heartbeatperiod = {CVAR_SAVE, "sv_heartbeatperiod", "120", "how often to send heartbeat in seconds (only used if sv_public is 1)"};
33 static cvar_t sv_masters [] =
35 {CVAR_SAVE, "sv_master1", "", "user-chosen master server 1"},
36 {CVAR_SAVE, "sv_master2", "", "user-chosen master server 2"},
37 {CVAR_SAVE, "sv_master3", "", "user-chosen master server 3"},
38 {CVAR_SAVE, "sv_master4", "", "user-chosen master server 4"},
39 {0, "sv_masterextra1", "ghdigital.com", "default master server 1 (admin: LordHavoc)"}, // admin: LordHavoc
40 {0, "sv_masterextra2", "dpmaster.deathmask.net", "default master server 2 (admin: Willis)"}, // admin: Willis
41 {0, "sv_masterextra3", "12.166.196.192", "default master server 3 (admin: Venim)"}, // admin: Venim
42 {0, "sv_masterextra4", "excalibur.nvg.ntnu.no", "default master server 4 (admin: tChr)"}, // admin: tChr
46 static cvar_t sv_qwmasters [] =
48 {CVAR_SAVE, "sv_qwmaster1", "", "user-chosen qwmaster server 1"},
49 {CVAR_SAVE, "sv_qwmaster2", "", "user-chosen qwmaster server 2"},
50 {CVAR_SAVE, "sv_qwmaster3", "", "user-chosen qwmaster server 3"},
51 {CVAR_SAVE, "sv_qwmaster4", "", "user-chosen qwmaster server 4"},
52 {0, "sv_qwmasterextra1", "satan.idsoftware.com", "default qwmaster server 1 (admin: idSoftware)"},
53 {0, "sv_qwmasterextra2", "192.246.40.37:27000", "id Limbo (admin: id Software)"},
54 {0, "sv_qwmasterextra3", "192.246.40.37:27002", "id CTF (admin: id Software)"},
55 {0, "sv_qwmasterextra4", "192.246.40.37:27003", "id TeamFortress (admin: id Software)"},
56 {0, "sv_qwmasterextra5", "192.246.40.37:27004", "id Miscilaneous (admin: id Software)"},
57 {0, "sv_qwmasterextra6", "192.246.40.37:27006", "id Deathmatch Only (admin: id Software)"},
58 {0, "sv_qwmasterextra7", "150.254.66.120:27000", "Poland's master server. (admin: unknown)"},
59 {0, "sv_qwmasterextra8", "62.112.145.129:27000", "Ocrana master server. (admin: unknown)"},
60 {0, "sv_qwmasterextra9", "master.edome.net", "edome master server. (admin: unknown)"},
61 {0, "sv_qwmasterextra10", "qwmaster.barrysworld.com", "barrysworld master server. (admin: unknown)"},
62 {0, "sv_qwmasterextra11", "qwmaster.ocrana.de:27000", "Ocrana2 master server. (admin: unknown)"},
63 {0, "sv_qwmasterextra12", "213.221.174.165:27000", "unknown1 master server. (admin: unknown)"},
64 {0, "sv_qwmasterextra13", "195.74.0.8", "unknown2 master server. (admin: unknown)"},
65 {0, "sv_qwmasterextra14", "192.246.40.37", "unknown3 master server. (admin: unknown)"},
66 {0, "sv_qwmasterextra15", "192.246.40.37:27006", "unknown4 master server. (admin: unknown)"},
67 {0, "sv_qwmasterextra16", "204.182.161.2", "unknown5 master server. (admin: unknown)"},
71 static double nextheartbeattime = 0;
73 sizebuf_t net_message;
74 static unsigned char net_message_buf[NET_MAXMESSAGE];
76 cvar_t net_messagetimeout = {0, "net_messagetimeout","300", "drops players who have not sent any packets for this many seconds"};
77 cvar_t net_messagerejointimeout = {0, "net_messagerejointimeout","10", "give a player this much time in seconds to rejoin and continue playing (not losing frags and such)"};
78 cvar_t net_connecttimeout = {0, "net_connecttimeout","10", "after requesting a connection, the client must reply within this many seconds or be dropped (cuts down on connect floods)"};
79 cvar_t hostname = {CVAR_SAVE, "hostname", "UNNAMED", "server message to show in server browser"};
80 cvar_t developer_networking = {0, "developer_networking", "0", "prints all received and sent packets (recommended only for debugging)"};
82 cvar_t cl_netlocalping = {0, "cl_netlocalping","0", "lags local loopback connection by this much ping time (useful to play more fairly on your own server with people with higher pings)"};
83 static cvar_t cl_netpacketloss = {0, "cl_netpacketloss","0", "drops this percentage of packets (incoming and outgoing), useful for testing network protocol robustness (effects failing to start, sounds failing to play, etc)"};
84 static cvar_t net_slist_queriespersecond = {0, "net_slist_queriespersecond", "20", "how many server information requests to send per second"};
85 static cvar_t net_slist_queriesperframe = {0, "net_slist_queriesperframe", "4", "maximum number of server information requests to send each rendered frame (guards against low framerates causing problems)"};
86 static cvar_t net_slist_timeout = {0, "net_slist_timeout", "4", "how long to listen for a server information response before giving up"};
87 static cvar_t net_slist_maxtries = {0, "net_slist_maxtries", "3", "how many times to ask the same server for information (more times gives better ping reports but takes longer)"};
89 static cvar_t gameversion = {0, "gameversion", "0", "version of game data (mod-specific), when client and server gameversion mismatch in the server browser the server is shown as incompatible"};
91 /* statistic counters */
92 static int packetsSent = 0;
93 static int packetsReSent = 0;
94 static int packetsReceived = 0;
95 static int receivedDuplicateCount = 0;
96 static int droppedDatagrams = 0;
98 static int unreliableMessagesSent = 0;
99 static int unreliableMessagesReceived = 0;
100 static int reliableMessagesSent = 0;
101 static int reliableMessagesReceived = 0;
103 double masterquerytime = -1000;
104 int masterquerycount = 0;
105 int masterreplycount = 0;
106 int serverquerycount = 0;
107 int serverreplycount = 0;
109 // this is only false if there are still servers left to query
110 static qboolean serverlist_querysleep = true;
111 // this is pushed a second or two ahead of realtime whenever a master server
112 // reply is received, to avoid issuing queries while master replies are still
113 // flooding in (which would make a mess of the ping times)
114 static double serverlist_querywaittime = 0;
116 static unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
117 static unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
119 static int cl_numsockets;
120 static lhnetsocket_t *cl_sockets[16];
121 static int sv_numsockets;
122 static lhnetsocket_t *sv_sockets[16];
124 netconn_t *netconn_list = NULL;
125 mempool_t *netconn_mempool = NULL;
127 cvar_t cl_netport = {0, "cl_port", "0", "forces client to use chosen port number if not 0"};
128 cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to"};
129 cvar_t net_address = {0, "net_address", "0.0.0.0", "network address to open ports on"};
130 //cvar_t net_netaddress_ipv6 = {0, "net_address_ipv6", "[0:0:0:0:0:0:0:0]", "network address to open ipv6 ports on"};
132 // ServerList interface
133 serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT];
134 serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT];
136 serverlist_infofield_t serverlist_sortbyfield;
137 qboolean serverlist_sortdescending;
139 int serverlist_viewcount = 0;
140 serverlist_entry_t *serverlist_viewlist[SERVERLIST_VIEWLISTSIZE];
142 int serverlist_cachecount;
143 serverlist_entry_t serverlist_cache[SERVERLIST_TOTALSIZE];
145 qboolean serverlist_consoleoutput;
147 // helper function to insert a value into the viewset
148 // spare entries will be removed
149 static void _ServerList_ViewList_Helper_InsertBefore( int index, serverlist_entry_t *entry )
152 if( serverlist_viewcount < SERVERLIST_VIEWLISTSIZE ) {
153 i = serverlist_viewcount++;
155 i = SERVERLIST_VIEWLISTSIZE - 1;
158 for( ; i > index ; i-- )
159 serverlist_viewlist[ i ] = serverlist_viewlist[ i - 1 ];
161 serverlist_viewlist[index] = entry;
164 // we suppose serverlist_viewcount to be valid, ie > 0
165 static void _ServerList_ViewList_Helper_Remove( int index )
167 serverlist_viewcount--;
168 for( ; index < serverlist_viewcount ; index++ )
169 serverlist_viewlist[index] = serverlist_viewlist[index + 1];
172 // returns true if A should be inserted before B
173 static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_entry_t *B )
175 int result = 0; // > 0 if for numbers A > B and for text if A < B
177 switch( serverlist_sortbyfield ) {
179 result = A->info.ping - B->info.ping;
181 case SLIF_MAXPLAYERS:
182 result = A->info.maxplayers - B->info.maxplayers;
184 case SLIF_NUMPLAYERS:
185 result = A->info.numplayers - B->info.numplayers;
188 result = A->info.protocol - B->info.protocol;
191 result = strcmp( B->info.cname, A->info.cname );
194 result = strcmp( B->info.game, A->info.game );
197 result = strcmp( B->info.map, A->info.map );
200 result = strcmp( B->info.mod, A->info.mod );
203 result = strcmp( B->info.name, A->info.name );
206 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
210 if( serverlist_sortdescending )
215 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
217 // This should actually be done with some intermediate and end-of-function return
229 case SLMO_GREATEREQUAL:
231 case SLMO_NOTCONTAIN:
234 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
239 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
242 char bufferA[ 256 ], bufferB[ 256 ]; // should be more than enough
243 for (i = 0;i < (int)sizeof(bufferA)-1 && A[i];i++)
244 bufferA[i] = (A[i] >= 'A' && A[i] <= 'Z') ? (A[i] + 'a' - 'A') : A[i];
246 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
247 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
250 // Same here, also using an intermediate & final return would be more appropriate
254 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
255 case SLMO_NOTCONTAIN:
256 return !*bufferB || !strstr( bufferA, bufferB );
258 return strcmp( bufferA, bufferB ) < 0;
260 return strcmp( bufferA, bufferB ) <= 0;
262 return strcmp( bufferA, bufferB ) == 0;
264 return strcmp( bufferA, bufferB ) > 0;
266 return strcmp( bufferA, bufferB ) != 0;
267 case SLMO_GREATEREQUAL:
268 return strcmp( bufferA, bufferB ) >= 0;
270 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
275 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
277 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
279 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
281 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
283 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
285 if( *mask->info.cname
286 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
289 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
292 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
295 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
298 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
303 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
307 // reject incompatible servers
308 if (entry->info.gameversion != gameversion.integer)
311 // FIXME: change this to be more readable (...)
312 // now check whether it passes through the masks
313 for( start = 0 ; serverlist_andmasks[start].active && start < SERVERLIST_ANDMASKCOUNT ; start++ )
314 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
317 for( start = 0 ; serverlist_ormasks[start].active && start < SERVERLIST_ORMASKCOUNT ; start++ )
318 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
320 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
323 if( !serverlist_viewcount ) {
324 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
327 // ok, insert it, we just need to find out where exactly:
330 // check whether to insert it as new first item
331 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
332 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
334 } // check whether to insert it as new last item
335 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
336 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
340 end = serverlist_viewcount - 1;
341 while( end > start + 1 )
343 mid = (start + end) / 2;
344 // test the item that lies in the middle between start and end
345 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
346 // the item has to be in the upper half
349 // the item has to be in the lower half
352 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
355 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
358 for( i = 0; i < serverlist_viewcount; i++ )
360 if (serverlist_viewlist[i] == entry)
362 _ServerList_ViewList_Helper_Remove(i);
368 void ServerList_RebuildViewList(void)
372 serverlist_viewcount = 0;
373 for( i = 0 ; i < serverlist_cachecount ; i++ )
374 if( serverlist_cache[i].query == SQS_QUERIED )
375 ServerList_ViewList_Insert( &serverlist_cache[i] );
378 void ServerList_ResetMasks(void)
380 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
381 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
385 static void _ServerList_Test(void)
388 for( i = 0 ; i < 1024 ; i++ ) {
389 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
390 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
391 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
392 serverlist_cache[serverlist_cachecount].finished = true;
393 sprintf( serverlist_cache[serverlist_cachecount].line1, "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
394 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
395 serverlist_cachecount++;
400 void ServerList_QueryList(qboolean querydp, qboolean queryqw)
402 //masterquerytime = realtime;
403 masterquerytime = Sys_DoubleTime();
404 masterquerycount = 0;
405 masterreplycount = 0;
406 serverquerycount = 0;
407 serverreplycount = 0;
408 serverlist_cachecount = 0;
409 serverlist_viewcount = 0;
410 serverlist_consoleoutput = false;
412 //_ServerList_Test();
414 NetConn_QueryMasters(querydp, queryqw);
419 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
421 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
425 if (cl_netpacketloss.integer)
426 for (i = 0;i < cl_numsockets;i++)
427 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss.integer)
429 if (developer_networking.integer)
431 char addressstring[128], addressstring2[128];
432 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
435 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
436 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", mysocket, addressstring, data, maxlength, peeraddress, length, addressstring2);
437 Com_HexDumpToConsole((unsigned char *)data, length);
440 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", mysocket, addressstring, data, maxlength, peeraddress, length);
445 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
449 if (cl_netpacketloss.integer)
450 for (i = 0;i < cl_numsockets;i++)
451 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss.integer)
453 ret = LHNET_Write(mysocket, data, length, peeraddress);
454 if (developer_networking.integer)
456 char addressstring[128], addressstring2[128];
457 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
458 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
459 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", mysocket, addressstring, data, length, peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
460 Com_HexDumpToConsole((unsigned char *)data, length);
465 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
467 // note this does not include the trailing NULL because we add that in the parser
468 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
471 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol)
473 if (protocol == PROTOCOL_QUAKEWORLD)
476 qboolean sendreliable;
478 // note that it is ok to send empty messages to the qw server,
479 // otherwise it won't respond to us at all
481 sendreliable = false;
482 // if the remote side dropped the last reliable message, resend it
483 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
485 // if the reliable transmit buffer is empty, copy the current message out
486 if (!conn->sendMessageLength && conn->message.cursize)
488 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
489 conn->sendMessageLength = conn->message.cursize;
490 SZ_Clear(&conn->message); // clear the message buffer
491 conn->qw.reliable_sequence ^= 1;
494 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
495 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->qw.outgoing_sequence | ((unsigned int)sendreliable<<31));
496 // last received unreliable packet number, and last received reliable packet number (0 or 1)
497 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
499 conn->qw.outgoing_sequence++;
500 // client sends qport in every packet
501 if (conn == cls.netcon)
503 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
506 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
508 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
511 // add the reliable message if there is one
514 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
515 packetLen += conn->sendMessageLength;
516 conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence;
518 // add the unreliable message if possible
519 if (packetLen + data->cursize <= 1400)
521 memcpy(sendbuffer + packetLen, data->data, data->cursize);
522 packetLen += data->cursize;
525 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
528 unreliableMessagesSent++;
530 // delay later packets to obey rate limit
531 conn->qw.cleartime = max(conn->qw.cleartime, realtime) + packetLen * conn->qw.rate;
537 unsigned int packetLen;
538 unsigned int dataLen;
540 unsigned int *header;
542 // if a reliable message fragment has been lost, send it again
543 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
545 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
547 dataLen = conn->sendMessageLength;
552 dataLen = MAX_PACKETFRAGMENT;
556 packetLen = NET_HEADERSIZE + dataLen;
558 header = (unsigned int *)sendbuffer;
559 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
560 header[1] = BigLong(conn->nq.sendSequence - 1);
561 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
563 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
565 conn->lastSendTime = realtime;
570 // if we have a new reliable message to send, do so
571 if (!conn->sendMessageLength && conn->message.cursize)
573 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
575 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, sizeof(conn->sendMessage));
576 conn->message.overflowed = true;
580 if (developer_networking.integer && conn == cls.netcon)
582 Con_Print("client sending reliable message to server:\n");
583 SZ_HexDumpToConsole(&conn->message);
586 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
587 conn->sendMessageLength = conn->message.cursize;
588 SZ_Clear(&conn->message);
590 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
592 dataLen = conn->sendMessageLength;
597 dataLen = MAX_PACKETFRAGMENT;
601 packetLen = NET_HEADERSIZE + dataLen;
603 header = (unsigned int *)sendbuffer;
604 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
605 header[1] = BigLong(conn->nq.sendSequence);
606 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
608 conn->nq.sendSequence++;
610 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
612 conn->lastSendTime = realtime;
614 reliableMessagesSent++;
617 // if we have an unreliable message to send, do so
620 packetLen = NET_HEADERSIZE + data->cursize;
622 if (packetLen > (int)sizeof(sendbuffer))
624 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
628 header = (unsigned int *)sendbuffer;
629 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
630 header[1] = BigLong(conn->nq.unreliableSendSequence);
631 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
633 conn->nq.unreliableSendSequence++;
635 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
638 unreliableMessagesSent++;
644 void NetConn_CloseClientPorts(void)
646 for (;cl_numsockets > 0;cl_numsockets--)
647 if (cl_sockets[cl_numsockets - 1])
648 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
651 void NetConn_OpenClientPort(const char *addressstring, int defaultport)
653 lhnetaddress_t address;
655 char addressstring2[1024];
656 if (LHNETADDRESS_FromString(&address, addressstring, defaultport))
658 if ((s = LHNET_OpenSocket_Connectionless(&address)))
660 cl_sockets[cl_numsockets++] = s;
661 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
662 Con_Printf("Client opened a socket on address %s\n", addressstring2);
666 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
667 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
671 Con_Printf("Client unable to parse address %s\n", addressstring);
674 void NetConn_OpenClientPorts(void)
677 NetConn_CloseClientPorts();
678 port = bound(0, cl_netport.integer, 65535);
679 if (cl_netport.integer != port)
680 Cvar_SetValueQuick(&cl_netport, port);
681 Con_Printf("Client using port %i\n", port);
682 NetConn_OpenClientPort("local:2", 0);
683 NetConn_OpenClientPort(net_address.string, port);
684 //NetConn_OpenClientPort(net_address_ipv6.string, port);
687 void NetConn_CloseServerPorts(void)
689 for (;sv_numsockets > 0;sv_numsockets--)
690 if (sv_sockets[sv_numsockets - 1])
691 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
694 void NetConn_OpenServerPort(const char *addressstring, int defaultport)
696 lhnetaddress_t address;
699 char addressstring2[1024];
701 for (port = defaultport; port <= defaultport + 100; port++)
703 if (LHNETADDRESS_FromString(&address, addressstring, port))
705 if ((s = LHNET_OpenSocket_Connectionless(&address)))
707 sv_sockets[sv_numsockets++] = s;
708 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
709 Con_Printf("Server listening on address %s\n", addressstring2);
714 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
715 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
720 Con_Printf("Server unable to parse address %s\n", addressstring);
721 // if it cant parse one address, it wont be able to parse another for sure
727 void NetConn_OpenServerPorts(int opennetports)
730 NetConn_CloseServerPorts();
731 NetConn_UpdateSockets();
732 port = bound(0, sv_netport.integer, 65535);
735 Con_Printf("Server using port %i\n", port);
736 if (sv_netport.integer != port)
737 Cvar_SetValueQuick(&sv_netport, port);
738 if (cls.state != ca_dedicated)
739 NetConn_OpenServerPort("local:1", 0);
742 NetConn_OpenServerPort(net_address.string, port);
743 //NetConn_OpenServerPort(net_address_ipv6.string, port);
745 if (sv_numsockets == 0)
746 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
749 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
751 int i, a = LHNETADDRESS_GetAddressType(address);
752 for (i = 0;i < cl_numsockets;i++)
753 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
754 return cl_sockets[i];
758 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
760 int i, a = LHNETADDRESS_GetAddressType(address);
761 for (i = 0;i < sv_numsockets;i++)
762 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
763 return sv_sockets[i];
767 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
770 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
771 conn->mysocket = mysocket;
772 conn->peeraddress = *peeraddress;
773 conn->lastMessageTime = realtime;
774 conn->message.data = conn->messagedata;
775 conn->message.maxsize = sizeof(conn->messagedata);
776 conn->message.cursize = 0;
777 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
778 // reduce effectiveness of connection request floods
779 conn->timeout = realtime + net_connecttimeout.value;
780 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
781 conn->next = netconn_list;
786 void NetConn_Close(netconn_t *conn)
789 // remove connection from list
790 if (conn == netconn_list)
791 netconn_list = conn->next;
794 for (c = netconn_list;c;c = c->next)
798 c->next = conn->next;
802 // not found in list, we'll avoid crashing here...
810 static int clientport = -1;
811 static int clientport2 = -1;
812 static int hostport = -1;
813 void NetConn_UpdateSockets(void)
815 if (cls.state != ca_dedicated)
817 if (clientport2 != cl_netport.integer)
819 clientport2 = cl_netport.integer;
820 if (cls.state == ca_connected)
821 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
823 if (cls.state == ca_disconnected && clientport != clientport2)
825 clientport = clientport2;
826 NetConn_CloseClientPorts();
828 if (cl_numsockets == 0)
829 NetConn_OpenClientPorts();
832 if (hostport != sv_netport.integer)
834 hostport = sv_netport.integer;
836 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
840 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol)
845 if (protocol == PROTOCOL_QUAKEWORLD)
847 int sequence, sequence_ack;
848 int reliable_ack, reliable_message;
852 sequence = LittleLong(*((int *)(data + 0)));
853 sequence_ack = LittleLong(*((int *)(data + 4)));
857 if (conn != cls.netcon)
862 // TODO: use qport to identify that this client really is who they say they are? (and elsewhere in the code to identify the connection without a port match?)
863 qport = LittleShort(*((int *)(data + 8)));
869 reliable_message = (sequence >> 31) & 1;
870 reliable_ack = (sequence_ack >> 31) & 1;
871 sequence &= ~(1<<31);
872 sequence_ack &= ~(1<<31);
873 if (sequence <= conn->qw.incoming_sequence)
875 Con_DPrint("Got a stale datagram\n");
878 count = sequence - (conn->qw.incoming_sequence + 1);
881 droppedDatagrams += count;
882 Con_DPrintf("Dropped %u datagram(s)\n", count);
884 if (reliable_ack == conn->qw.reliable_sequence)
886 // received, now we will be able to send another reliable message
887 conn->sendMessageLength = 0;
888 reliableMessagesReceived++;
890 conn->qw.incoming_sequence = sequence;
891 conn->qw.incoming_acknowledged = sequence_ack;
892 conn->qw.incoming_reliable_acknowledged = reliable_ack;
893 if (reliable_message)
894 conn->qw.incoming_reliable_sequence ^= 1;
895 conn->lastMessageTime = realtime;
896 conn->timeout = realtime + net_messagetimeout.value;
897 unreliableMessagesReceived++;
898 SZ_Clear(&net_message);
899 SZ_Write(&net_message, data, length);
907 unsigned int sequence;
910 qlength = (unsigned int)BigLong(((int *)data)[0]);
911 flags = qlength & ~NETFLAG_LENGTH_MASK;
912 qlength &= NETFLAG_LENGTH_MASK;
913 // control packets were already handled
914 if (!(flags & NETFLAG_CTL) && qlength == length)
916 sequence = BigLong(((int *)data)[1]);
920 if (flags & NETFLAG_UNRELIABLE)
922 if (sequence >= conn->nq.unreliableReceiveSequence)
924 if (sequence > conn->nq.unreliableReceiveSequence)
926 count = sequence - conn->nq.unreliableReceiveSequence;
927 droppedDatagrams += count;
928 Con_DPrintf("Dropped %u datagram(s)\n", count);
930 conn->nq.unreliableReceiveSequence = sequence + 1;
931 conn->lastMessageTime = realtime;
932 conn->timeout = realtime + net_messagetimeout.value;
933 unreliableMessagesReceived++;
936 SZ_Clear(&net_message);
937 SZ_Write(&net_message, data, length);
943 Con_DPrint("Got a stale datagram\n");
946 else if (flags & NETFLAG_ACK)
948 if (sequence == (conn->nq.sendSequence - 1))
950 if (sequence == conn->nq.ackSequence)
952 conn->nq.ackSequence++;
953 if (conn->nq.ackSequence != conn->nq.sendSequence)
954 Con_DPrint("ack sequencing error\n");
955 conn->lastMessageTime = realtime;
956 conn->timeout = realtime + net_messagetimeout.value;
957 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
959 unsigned int packetLen;
960 unsigned int dataLen;
962 unsigned int *header;
964 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
965 memcpy(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
967 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
969 dataLen = conn->sendMessageLength;
974 dataLen = MAX_PACKETFRAGMENT;
978 packetLen = NET_HEADERSIZE + dataLen;
980 header = (unsigned int *)sendbuffer;
981 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
982 header[1] = BigLong(conn->nq.sendSequence);
983 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
985 conn->nq.sendSequence++;
987 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
989 conn->lastSendTime = realtime;
994 conn->sendMessageLength = 0;
997 Con_DPrint("Duplicate ACK received\n");
1000 Con_DPrint("Stale ACK received\n");
1003 else if (flags & NETFLAG_DATA)
1005 unsigned int temppacket[2];
1006 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1007 temppacket[1] = BigLong(sequence);
1008 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1009 if (sequence == conn->nq.receiveSequence)
1011 conn->lastMessageTime = realtime;
1012 conn->timeout = realtime + net_messagetimeout.value;
1013 conn->nq.receiveSequence++;
1014 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1015 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1016 conn->receiveMessageLength += length;
1018 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1019 "Dropping the message!\n", sequence );
1020 conn->receiveMessageLength = 0;
1023 if (flags & NETFLAG_EOM)
1025 reliableMessagesReceived++;
1026 length = conn->receiveMessageLength;
1027 conn->receiveMessageLength = 0;
1030 SZ_Clear(&net_message);
1031 SZ_Write(&net_message, conn->receiveMessage, length);
1038 receivedDuplicateCount++;
1046 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1048 cls.connect_trying = false;
1049 M_Update_Return_Reason("");
1050 // the connection request succeeded, stop current connection and set up a new connection
1052 // if we're connecting to a remote server, shut down any local server
1053 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1054 Host_ShutdownServer ();
1055 // allocate a net connection to keep track of things
1056 cls.netcon = NetConn_Open(mysocket, peeraddress);
1057 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1058 key_dest = key_game;
1060 cls.demonum = -1; // not in the demo loop now
1061 cls.state = ca_connected;
1062 cls.signon = 0; // need all the signon messages before playing
1063 cls.protocol = initialprotocol;
1064 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1065 Cmd_ForwardStringToServer("new");
1068 int NetConn_IsLocalGame(void)
1070 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1075 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1077 qboolean fromserver;
1078 int ret, c, control;
1080 char *string, addressstring2[128], cname[128], ipstring[32];
1081 char stringbuf[16384];
1083 // quakeworld ingame packet
1084 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1086 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1088 // received a command string - strip off the packaging and put it
1089 // into our string buffer with NULL termination
1092 length = min(length, (int)sizeof(stringbuf) - 1);
1093 memcpy(stringbuf, data, length);
1094 stringbuf[length] = 0;
1097 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1099 if (developer_networking.integer)
1101 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1102 Com_HexDumpToConsole(data, length);
1105 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1107 // darkplaces or quake3
1108 char protocolnames[1400];
1109 Protocol_Names(protocolnames, sizeof(protocolnames));
1110 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1111 M_Update_Return_Reason("Got challenge response");
1112 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1115 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')))
1118 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1119 Con_Printf("\"%s\" received, sending QuakeWorld connect request back to %s\n", string, addressstring2);
1120 M_Update_Return_Reason("Got QuakeWorld challenge response");
1121 cls.qw_qport = qport.integer;
1122 NetConn_WriteString(mysocket, va("\377\377\377\377connect 28 %i %i \"%s\"\n", cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1124 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1126 // darkplaces or quake3
1127 M_Update_Return_Reason("Accepted");
1128 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1131 if (length > 1 && string[0] == 'j' && cls.connect_trying)
1134 M_Update_Return_Reason("QuakeWorld Accepted");
1135 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1138 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1140 char rejectreason[32];
1141 cls.connect_trying = false;
1143 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1144 memcpy(rejectreason, string, length);
1145 rejectreason[length] = 0;
1146 M_Update_Return_Reason(rejectreason);
1149 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1151 serverlist_info_t *info;
1156 // serverlist only uses text addresses
1157 LHNETADDRESS_ToString(peeraddress, cname, sizeof(cname), true);
1158 // search the cache for this server and update it
1159 for( n = 0; n < serverlist_cachecount; n++ )
1160 if( !strcmp( cname, serverlist_cache[n].info.cname ) )
1162 if( n == serverlist_cachecount ) {
1163 // LAN search doesnt require an answer from the master server so we wont
1164 // know the ping nor will it be initialized already...
1167 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1170 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1171 // store the data the engine cares about (address and ping)
1172 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, cname, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1173 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1174 //serverlist_cache[serverlist_cachecount].querytime = realtime;
1175 serverlist_cache[serverlist_cachecount].querytime = Sys_DoubleTime();
1176 // if not in the slist menu we should print the server to console
1177 if (serverlist_consoleoutput) {
1178 Con_Printf("querying %s\n", ipstring);
1181 ++serverlist_cachecount;
1184 info = &serverlist_cache[n].info;
1185 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));else info->game[0] = 0;
1186 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1187 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1188 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1189 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);else info->protocol = -1;
1190 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);else info->numplayers = 0;
1191 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1192 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1194 if (info->ping == 100000)
1197 pingtime = (int)((Sys_DoubleTime() - serverlist_cache[n].querytime) * 1000.0 + 0.5);
1198 pingtime = bound(0, pingtime, 9999);
1200 info->ping = pingtime;
1202 // legacy/old stuff move it to the menu ASAP
1204 // build description strings for the things users care about
1205 dpsnprintf(serverlist_cache[n].line1, sizeof(serverlist_cache[n].line1), "^%c%5d^7 ^%c%3u^7/%3u %-65.65s", pingtime >= 300 ? '1' : (pingtime >= 200 ? '3' : '7'), (int)pingtime, ((info->numplayers > 0 && info->numplayers < info->maxplayers) ? (info->numplayers >= 4 ? '7' : '3') : '1'), info->numplayers, info->maxplayers, info->name);
1206 dpsnprintf(serverlist_cache[n].line2, sizeof(serverlist_cache[n].line2), "^5%-21.21s %-19.19s ^%c%-17.17s^5 %-20.20s", info->cname, info->game, (info->gameversion != gameversion.integer) ? '1' : '5', info->mod, info->map);
1207 if( serverlist_cache[n].query == SQS_QUERIED ) {
1208 ServerList_ViewList_Remove( &serverlist_cache[n] );
1210 // if not in the slist menu we should print the server to console (if wanted)
1211 else if( serverlist_consoleoutput )
1212 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1213 // and finally, update the view set
1214 ServerList_ViewList_Insert( &serverlist_cache[n] );
1215 serverlist_cache[n].query = SQS_QUERIED;
1219 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1221 // Extract the IP addresses
1225 if (serverlist_consoleoutput)
1226 Con_Print("received DarkPlaces server list...\n");
1227 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1231 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1232 if (serverlist_consoleoutput && developer_networking.integer)
1233 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1234 // ignore the rest of the message if the serverlist is full
1235 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1237 // also ignore it if we have already queried it (other master server response)
1238 for( n = 0 ; n < serverlist_cachecount ; n++ )
1239 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1241 if( n >= serverlist_cachecount )
1245 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1246 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_DARKPLACES7;
1247 // store the data the engine cares about (address and ping)
1248 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1249 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1250 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1252 ++serverlist_cachecount;
1255 // move on to next address in packet
1259 // begin or resume serverlist queries
1260 serverlist_querysleep = false;
1261 serverlist_querywaittime = realtime + 3;
1264 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1266 // Extract the IP addresses
1270 if (serverlist_consoleoutput)
1271 Con_Print("received QuakeWorld server list...\n");
1272 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1276 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1277 if (serverlist_consoleoutput && developer_networking.integer)
1278 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1279 // ignore the rest of the message if the serverlist is full
1280 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1282 // also ignore it if we have already queried it (other master server response)
1283 for( n = 0 ; n < serverlist_cachecount ; n++ )
1284 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1286 if( n >= serverlist_cachecount )
1290 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1291 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_QUAKEWORLD;
1292 // store the data the engine cares about (address and ping)
1293 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1294 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1295 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1297 ++serverlist_cachecount;
1300 // move on to next address in packet
1304 // begin or resume serverlist queries
1305 serverlist_querysleep = false;
1306 serverlist_querywaittime = realtime + 3;
1310 if (!strncmp(string, "ping", 4))
1312 if (developer.integer)
1313 Con_Printf("Received ping from %s, sending ack\n", UDP_AddrToString(readaddr));
1314 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1317 if (!strncmp(string, "ack", 3))
1320 // QuakeWorld compatibility
1321 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1324 M_Update_Return_Reason("Accepted");
1325 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1328 if (length > 1 && string[0] == 'c' && string[1] >= '0' && string[1] <= '9' && cls.connect_trying)
1330 // challenge message
1331 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1332 Con_Printf("challenge %s received, sending connect request back to %s\n", string + 1, addressstring2);
1333 M_Update_Return_Reason("Got challenge response");
1334 cls.qw_qport = qport.integer;
1335 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1336 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "name", cl_name.string);
1337 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "topcolor", va("%i", (cl_color.integer >> 4) & 15));
1338 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "bottomcolor", va("%i", (cl_color.integer) & 15));
1339 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "rate", va("%i", cl_rate.integer));
1340 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "msg", "1");
1341 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ver", engineversion);
1342 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1345 if (length > 2 && !memcmp(string, "n\\", 2))
1347 serverlist_info_t *info;
1352 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1353 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1356 // serverlist only uses text addresses
1357 LHNETADDRESS_ToString(peeraddress, cname, sizeof(cname), true);
1358 // search the cache for this server and update it
1359 for( n = 0; n < serverlist_cachecount; n++ )
1360 if( !strcmp( cname, serverlist_cache[n].info.cname ) )
1362 if( n == serverlist_cachecount ) {
1363 // LAN search doesnt require an answer from the master server so we wont
1364 // know the ping nor will it be initialized already...
1367 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1370 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1371 // store the data the engine cares about (address and ping)
1372 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, cname, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1373 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1374 //serverlist_cache[serverlist_cachecount].querytime = realtime;
1375 serverlist_cache[serverlist_cachecount].querytime = Sys_DoubleTime();
1376 // if not in the slist menu we should print the server to console
1377 if (serverlist_consoleoutput) {
1378 Con_Printf("querying %s\n", ipstring);
1381 ++serverlist_cachecount;
1384 info = &serverlist_cache[n].info;
1385 strlcpy(info->game, "QuakeWorld", sizeof(info->game));;
1386 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1387 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1388 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1390 info->numplayers = 0; // updated below
1391 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1392 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1394 // count active players on server
1395 // (we could gather more info, but we're just after the number)
1396 s = strchr(string, '\n');
1400 while (s < string + length)
1402 for (;s < string + length && *s != '\n';s++)
1404 if (s >= string + length)
1411 if (info->ping == 100000)
1414 pingtime = (int)((Sys_DoubleTime() - serverlist_cache[n].querytime) * 1000.0 + 0.5);
1415 pingtime = bound(0, pingtime, 9999);
1417 info->ping = pingtime;
1419 // legacy/old stuff move it to the menu ASAP
1421 // build description strings for the things users care about
1422 dpsnprintf(serverlist_cache[n].line1, sizeof(serverlist_cache[n].line1), "^%c%5d^7 ^%c%3u^7/%3u %-65.65s", pingtime >= 300 ? '1' : (pingtime >= 200 ? '3' : '7'), (int)pingtime, ((info->numplayers > 0 && info->numplayers < info->maxplayers) ? (info->numplayers >= 4 ? '7' : '3') : '1'), info->numplayers, info->maxplayers, info->name);
1423 dpsnprintf(serverlist_cache[n].line2, sizeof(serverlist_cache[n].line2), "^4%-21.21s %-19.19s ^%c%-17.17s^4 %-20.20s", info->cname, info->game, (info->gameversion != gameversion.integer) ? '1' : '4', info->mod, info->map);
1424 if( serverlist_cache[n].query == SQS_QUERIED ) {
1425 ServerList_ViewList_Remove( &serverlist_cache[n] );
1427 // if not in the slist menu we should print the server to console (if wanted)
1428 else if( serverlist_consoleoutput )
1429 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1430 // and finally, update the view set
1431 ServerList_ViewList_Insert( &serverlist_cache[n] );
1432 serverlist_cache[n].query = SQS_QUERIED;
1436 if (string[0] == 'n')
1439 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1441 // we may not have liked the packet, but it was a command packet, so
1442 // we're done processing this packet now
1445 // quakeworld ingame packet
1446 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol)) == 2)
1449 CL_ParseServerMessage();
1452 // netquake control packets, supported for compatibility only
1453 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1458 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1462 if (developer.integer)
1463 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1464 if (cls.connect_trying)
1466 lhnetaddress_t clientportaddress;
1467 clientportaddress = *peeraddress;
1470 unsigned int port = (data[0] << 0) | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
1473 LHNETADDRESS_SetPort(&clientportaddress, port);
1475 M_Update_Return_Reason("Accepted");
1476 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1480 if (developer.integer)
1481 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1482 cls.connect_trying = false;
1483 M_Update_Return_Reason((char *)data);
1486 case CCREP_SERVER_INFO:
1487 if (developer.integer)
1488 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1489 if (cls.state != ca_dedicated)
1491 // LordHavoc: because the UDP driver reports 0.0.0.0:26000 as the address
1492 // string we just ignore it and keep the real address
1494 // serverlist only uses text addresses
1495 cname = UDP_AddrToString(readaddr);
1496 // search the cache for this server
1497 for (n = 0; n < hostCacheCount; n++)
1498 if (!strcmp(cname, serverlist[n].cname))
1501 if (n == hostCacheCount && hostCacheCount < SERVERLISTSIZE)
1504 memset(&serverlist[n], 0, sizeof(serverlist[n]));
1505 strlcpy (serverlist[n].name, MSG_ReadString(), sizeof (serverlist[n].name));
1506 strlcpy (serverlist[n].map, MSG_ReadString(), sizeof (serverlist[n].map));
1507 serverlist[n].users = MSG_ReadByte();
1508 serverlist[n].maxusers = MSG_ReadByte();
1510 if (c != NET_PROTOCOL_VERSION)
1512 strlcpy (serverlist[n].cname, serverlist[n].name, sizeof (serverlist[n].cname));
1513 strcpy(serverlist[n].name, "*");
1514 strlcat (serverlist[n].name, serverlist[n].cname, sizeof(serverlist[n].name));
1516 strlcpy (serverlist[n].cname, cname, sizeof (serverlist[n].cname));
1520 case CCREP_PLAYER_INFO:
1521 // we got a CCREP_PLAYER_INFO??
1522 //if (developer.integer)
1523 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1525 case CCREP_RULE_INFO:
1526 // we got a CCREP_RULE_INFO??
1527 //if (developer.integer)
1528 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1534 // we may not have liked the packet, but it was a valid control
1535 // packet, so we're done processing this packet now
1539 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol)) == 2)
1540 CL_ParseServerMessage();
1544 void NetConn_QueryQueueFrame(void)
1550 static double querycounter = 0;
1552 if (serverlist_querysleep)
1555 // apply a cool down time after master server replies,
1556 // to avoid messing up the ping times on the servers
1557 if (serverlist_querywaittime > realtime)
1560 // each time querycounter reaches 1.0 issue a query
1561 querycounter += host_realframetime * net_slist_queriespersecond.value;
1562 maxqueries = (int)querycounter;
1563 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1564 querycounter -= maxqueries;
1566 if( maxqueries == 0 ) {
1570 // scan serverlist and issue queries as needed
1571 serverlist_querysleep = true;
1573 timeouttime = realtime - net_slist_timeout.value;
1574 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1576 serverlist_entry_t *entry = &serverlist_cache[ index ];
1577 if( entry->query != SQS_QUERYING )
1582 serverlist_querysleep = false;
1583 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1588 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1590 lhnetaddress_t address;
1593 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1594 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1596 for (socket = 0; socket < cl_numsockets ; socket++)
1597 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1601 for (socket = 0; socket < cl_numsockets ; socket++)
1602 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1605 //entry->querytime = realtime;
1606 entry->querytime = Sys_DoubleTime();
1607 entry->querycounter++;
1609 // if not in the slist menu we should print the server to console
1610 if (serverlist_consoleoutput)
1611 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1617 entry->query = SQS_TIMEDOUT;
1622 void NetConn_ClientFrame(void)
1625 lhnetaddress_t peeraddress;
1626 NetConn_UpdateSockets();
1627 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1629 if (cls.connect_remainingtries == 0)
1630 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1631 cls.connect_nextsendtime = realtime + 1;
1632 cls.connect_remainingtries--;
1633 if (cls.connect_remainingtries <= -10)
1635 cls.connect_trying = false;
1636 M_Update_Return_Reason("Connect: Failed");
1639 // try challenge first (newer DP server or QW)
1640 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1641 // then try netquake as a fallback (old server, or netquake)
1642 SZ_Clear(&net_message);
1643 // save space for the header, filled in later
1644 MSG_WriteLong(&net_message, 0);
1645 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1646 MSG_WriteString(&net_message, "QUAKE");
1647 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1648 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1649 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1650 SZ_Clear(&net_message);
1652 for (i = 0;i < cl_numsockets;i++)
1653 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1654 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1655 NetConn_QueryQueueFrame();
1656 if (cls.netcon && realtime > cls.netcon->timeout)
1658 Con_Print("Connection timed out\n");
1660 Host_ShutdownServer ();
1664 #define MAX_CHALLENGES 128
1667 lhnetaddress_t address;
1671 challenge[MAX_CHALLENGES];
1673 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1677 for (i = 0;i < bufferlength - 1;i++)
1681 c = rand () % (127 - 33) + 33;
1682 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1688 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1690 unsigned int nb_clients = 0, i;
1693 // How many clients are there?
1694 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1695 if (svs.clients[i].active)
1698 // TODO: we should add more information for the full status string
1699 length = dpsnprintf(out_msg, out_size,
1700 "\377\377\377\377%s\x0A"
1701 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
1702 "\\clients\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
1705 fullstatus ? "statusResponse" : "infoResponse",
1706 gamename, com_modname, gameversion.integer, svs.maxclients,
1707 nb_clients, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1708 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1709 fullstatus ? "\n" : "");
1711 // Make sure it fits in the buffer
1720 ptr = out_msg + length;
1721 left = (int)out_size - length;
1723 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1725 client_t *cl = &svs.clients[i];
1728 int nameind, cleanind;
1730 char cleanname [sizeof(cl->name)];
1732 // Remove all characters '"' and '\' in the player name
1737 curchar = cl->name[nameind++];
1738 if (curchar != '"' && curchar != '\\')
1740 cleanname[cleanind++] = curchar;
1741 if (cleanind == sizeof(cleanname) - 1)
1744 } while (curchar != '\0');
1746 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1748 (int)(cl->ping * 1000.0f),
1761 extern void SV_SendServerinfo (client_t *client);
1762 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1764 int i, ret, clientnum, best;
1768 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
1770 // see if we can identify the sender as a local player
1771 // (this is necessary for rcon to send a reliable reply if the client is
1772 // actually on the server, not sending remotely)
1773 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1774 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
1776 if (i == svs.maxclients)
1781 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1783 // received a command string - strip off the packaging and put it
1784 // into our string buffer with NULL termination
1787 length = min(length, (int)sizeof(stringbuf) - 1);
1788 memcpy(stringbuf, data, length);
1789 stringbuf[length] = 0;
1792 if (developer.integer)
1794 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1795 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
1796 Com_HexDumpToConsole(data, length);
1799 if (length >= 12 && !memcmp(string, "getchallenge", 12))
1801 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
1803 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
1805 if (besttime > challenge[i].time)
1806 besttime = challenge[best = i].time;
1808 // if we did not find an exact match, choose the oldest and
1809 // update address and string
1810 if (i == MAX_CHALLENGES)
1813 challenge[i].address = *peeraddress;
1814 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
1816 challenge[i].time = realtime;
1817 // send the challenge
1818 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
1821 if (length > 8 && !memcmp(string, "connect\\", 8))
1825 if ((s = SearchInfostring(string, "challenge")))
1827 // validate the challenge
1828 for (i = 0;i < MAX_CHALLENGES;i++)
1829 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
1831 if (i < MAX_CHALLENGES)
1833 // check engine protocol
1834 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
1836 if (developer.integer)
1837 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
1838 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
1842 // see if this is a duplicate connection request
1843 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
1844 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
1846 if (clientnum < svs.maxclients && realtime - client->connecttime < net_messagerejointimeout.value)
1848 // client is still trying to connect,
1849 // so we send a duplicate reply
1850 if (developer.integer)
1851 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
1852 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
1855 else if (clientnum < svs.maxclients)
1857 if (realtime - client->netconnection->lastMessageTime >= net_messagerejointimeout.value)
1859 // client crashed and is coming back, keep their stuff intact
1860 SV_SendServerinfo(client);
1861 //host_client = client;
1862 //SV_DropClient (true);
1869 // this is a new client, find a slot
1870 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
1871 if (!client->active)
1873 if (clientnum < svs.maxclients)
1875 // prepare the client struct
1876 if ((conn = NetConn_Open(mysocket, peeraddress)))
1878 // allocated connection
1879 LHNETADDRESS_ToString(peeraddress, conn->address, sizeof(conn->address), true);
1880 if (developer.integer)
1881 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
1882 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
1883 // now set up the client
1885 SV_ConnectClient(clientnum, conn);
1887 NetConn_Heartbeat(1);
1893 if (developer.integer)
1894 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
1895 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
1903 if (length >= 7 && !memcmp(string, "getinfo", 7))
1905 const char *challenge = NULL;
1907 // If there was a challenge in the getinfo message
1908 if (length > 8 && string[7] == ' ')
1909 challenge = string + 8;
1911 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
1913 if (developer.integer)
1914 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
1915 NetConn_WriteString(mysocket, response, peeraddress);
1919 if (length >= 9 && !memcmp(string, "getstatus", 9))
1921 const char *challenge = NULL;
1923 // If there was a challenge in the getinfo message
1924 if (length > 10 && string[9] == ' ')
1925 challenge = string + 10;
1927 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
1929 if (developer.integer)
1930 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
1931 NetConn_WriteString(mysocket, response, peeraddress);
1935 if (length >= 5 && !memcmp(string, "rcon ", 5))
1938 char *s = string + 5;
1940 for (i = 0;*s > ' ';s++)
1941 if (i < (int)sizeof(password) - 1)
1944 if (password[0] > ' ' && !strcmp(rcon_password.string, password))
1946 // looks like a legitimate rcon command with the correct password
1947 Con_Printf("server received rcon command from %s:\n%s\n", host_client ? host_client->name : addressstring2, s);
1948 rcon_redirect = true;
1949 rcon_redirect_bufferpos = 0;
1950 Cmd_ExecuteString(s, src_command);
1951 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
1952 rcon_redirect = false;
1953 // print resulting text to client
1954 // if client is playing, send a reliable reply instead of
1958 // if the netconnection is loop, then this is the
1959 // local player on a listen mode server, and it would
1960 // result in duplicate printing to the console
1961 // (not that the local player should be using rcon
1962 // when they have the console)
1963 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
1964 SV_ClientPrintf("%s", rcon_redirect_buffer);
1969 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
1970 NetConn_WriteString(mysocket, response, peeraddress);
1976 if (!strncmp(string, "ping", 4))
1978 if (developer.integer)
1979 Con_Printf("Received ping from %s, sending ack\n", UDP_AddrToString(readaddr));
1980 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1983 if (!strncmp(string, "ack", 3))
1986 // we may not have liked the packet, but it was a command packet, so
1987 // we're done processing this packet now
1990 // LordHavoc: disabled netquake control packet support in server
1994 // netquake control packets, supported for compatibility only
1995 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
2000 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
2004 //if (developer.integer)
2005 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2006 if (length >= (int)strlen("QUAKE") + 1 + 1)
2008 if (memcmp(data, "QUAKE", strlen("QUAKE") + 1) != 0 || (int)data[strlen("QUAKE") + 1] != NET_PROTOCOL_VERSION)
2010 if (developer.integer)
2011 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2012 SZ_Clear(&net_message);
2013 // save space for the header, filled in later
2014 MSG_WriteLong(&net_message, 0);
2015 MSG_WriteByte(&net_message, CCREP_REJECT);
2016 MSG_WriteString(&net_message, "Incompatible version.\n");
2017 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2018 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2019 SZ_Clear(&net_message);
2023 // see if this is a duplicate connection request
2024 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2025 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2027 if (clientnum < svs.maxclients)
2029 // duplicate connection request
2030 if (realtime - client->connecttime < 2.0)
2032 // client is still trying to connect,
2033 // so we send a duplicate reply
2034 if (developer.integer)
2035 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2036 SZ_Clear(&net_message);
2037 // save space for the header, filled in later
2038 MSG_WriteLong(&net_message, 0);
2039 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2040 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2041 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2042 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2043 SZ_Clear(&net_message);
2046 else if (realtime - client->netconnection->lastMessageTime >= net_messagerejointimeout.value)
2048 SV_SendServerinfo(client);
2049 // the old client hasn't sent us anything
2050 // in quite a while, so kick off and let
2051 // the retry take care of it...
2052 //host_client = client;
2053 //SV_DropClient (true);
2059 // this is a new client, find a slot
2060 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2061 if (!client->active)
2063 if (clientnum < svs.maxclients && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2065 // connect to the client
2066 // everything is allocated, just fill in the details
2067 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2068 if (developer.integer)
2069 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2070 // send back the info about the server connection
2071 SZ_Clear(&net_message);
2072 // save space for the header, filled in later
2073 MSG_WriteLong(&net_message, 0);
2074 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2075 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2076 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2077 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2078 SZ_Clear(&net_message);
2079 // now set up the client struct
2081 SV_ConnectClient(clientnum, conn);
2083 NetConn_Heartbeat(1);
2087 //if (developer.integer)
2088 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2089 // no room; try to let player know
2090 SZ_Clear(&net_message);
2091 // save space for the header, filled in later
2092 MSG_WriteLong(&net_message, 0);
2093 MSG_WriteByte(&net_message, CCREP_REJECT);
2094 MSG_WriteString(&net_message, "Server is full.\n");
2095 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2096 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2097 SZ_Clear(&net_message);
2104 case CCREQ_SERVER_INFO:
2105 if (developer.integer)
2106 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2107 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2109 if (developer.integer)
2110 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2111 SZ_Clear(&net_message);
2112 // save space for the header, filled in later
2113 MSG_WriteLong(&net_message, 0);
2114 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2115 UDP_GetSocketAddr(UDP_acceptSock, &newaddr);
2116 MSG_WriteString(&net_message, UDP_AddrToString(&newaddr));
2117 MSG_WriteString(&net_message, hostname.string);
2118 MSG_WriteString(&net_message, sv.name);
2119 MSG_WriteByte(&net_message, net_activeconnections);
2120 MSG_WriteByte(&net_message, svs.maxclients);
2121 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2122 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2123 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2124 SZ_Clear(&net_message);
2127 case CCREQ_PLAYER_INFO:
2128 if (developer.integer)
2129 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2132 int playerNumber, activeNumber, clientNumber;
2135 playerNumber = MSG_ReadByte();
2137 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2138 if (client->active && ++activeNumber == playerNumber)
2140 if (clientNumber != svs.maxclients)
2142 SZ_Clear(&net_message);
2143 // save space for the header, filled in later
2144 MSG_WriteLong(&net_message, 0);
2145 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2146 MSG_WriteByte(&net_message, playerNumber);
2147 MSG_WriteString(&net_message, client->name);
2148 MSG_WriteLong(&net_message, client->colors);
2149 MSG_WriteLong(&net_message, (int)client->edict->fields.server->frags);
2150 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2151 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2152 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2153 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2154 SZ_Clear(&net_message);
2158 case CCREQ_RULE_INFO:
2159 if (developer.integer)
2160 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2166 // find the search start location
2167 prevCvarName = MSG_ReadString();
2168 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2170 // send the response
2171 SZ_Clear(&net_message);
2172 // save space for the header, filled in later
2173 MSG_WriteLong(&net_message, 0);
2174 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2177 MSG_WriteString(&net_message, var->name);
2178 MSG_WriteString(&net_message, var->string);
2180 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2181 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2182 SZ_Clear(&net_message);
2189 // we may not have liked the packet, but it was a valid control
2190 // packet, so we're done processing this packet now
2197 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol)) == 2)
2200 SV_ReadClientMessage();
2209 void NetConn_ServerFrame(void)
2212 lhnetaddress_t peeraddress;
2213 NetConn_UpdateSockets();
2214 for (i = 0;i < sv_numsockets;i++)
2215 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2216 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2217 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2219 // never timeout loopback connections
2220 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2222 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2224 SV_DropClient(false);
2230 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
2234 lhnetaddress_t masteraddress;
2235 lhnetaddress_t broadcastaddress;
2238 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2241 // 26000 is the default quake server port, servers on other ports will not
2243 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2244 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2248 for (i = 0;i < cl_numsockets;i++)
2252 // search LAN for Quake servers
2253 SZ_Clear(&net_message);
2254 // save space for the header, filled in later
2255 MSG_WriteLong(&net_message, 0);
2256 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2257 MSG_WriteString(&net_message, "QUAKE");
2258 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2259 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2260 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2261 SZ_Clear(&net_message);
2263 // search LAN for DarkPlaces servers
2264 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2266 // build the getservers message to send to the dpmaster master servers
2267 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2270 for (masternum = 0;sv_masters[masternum].name;masternum++)
2272 if (sv_masters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2275 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2282 // only query QuakeWorld servers when the user wants to
2285 for (i = 0;i < cl_numsockets;i++)
2289 // search LAN for QuakeWorld servers
2290 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
2292 // build the getservers message to send to the qwmaster master servers
2293 // note this has no -1 prefix, and the trailing nul byte is sent
2294 dpsnprintf(request, sizeof(request), "c\n");
2297 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2299 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2302 NetConn_Write(cl_sockets[i], request, 7, &masteraddress);
2308 if (!masterquerycount)
2310 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2311 M_Update_Return_Reason("No network");
2315 void NetConn_Heartbeat(int priority)
2317 lhnetaddress_t masteraddress;
2319 lhnetsocket_t *mysocket;
2321 // if it's a state change (client connected), limit next heartbeat to no
2322 // more than 30 sec in the future
2323 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2324 nextheartbeattime = realtime + 30.0;
2326 // limit heartbeatperiod to 30 to 270 second range,
2327 // lower limit is to avoid abusing master servers with excess traffic,
2328 // upper limit is to avoid timing out on the master server (which uses
2330 if (sv_heartbeatperiod.value < 30)
2331 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2332 if (sv_heartbeatperiod.value > 270)
2333 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2335 // make advertising optional and don't advertise singleplayer games, and
2336 // only send a heartbeat as often as the admin wants
2337 if (sv.active && sv_public.integer && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2339 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2340 for (masternum = 0;sv_masters[masternum].name;masternum++)
2341 if (sv_masters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2342 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2346 static void Net_Heartbeat_f(void)
2349 NetConn_Heartbeat(2);
2351 Con_Print("No server running, can not heartbeat to master server.\n");
2354 void PrintStats(netconn_t *conn)
2356 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2357 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2359 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2362 void Net_Stats_f(void)
2365 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2366 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2367 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2368 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2369 Con_Printf("packetsSent = %i\n", packetsSent);
2370 Con_Printf("packetsReSent = %i\n", packetsReSent);
2371 Con_Printf("packetsReceived = %i\n", packetsReceived);
2372 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2373 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2374 Con_Print("connections =\n");
2375 for (conn = netconn_list;conn;conn = conn->next)
2379 void Net_Slist_f(void)
2381 ServerList_ResetMasks();
2382 serverlist_sortbyfield = SLIF_PING;
2383 serverlist_sortdescending = false;
2384 if (m_state != m_slist) {
2385 Con_Print("Sending requests to master servers\n");
2386 ServerList_QueryList(true, false);
2387 serverlist_consoleoutput = true;
2388 Con_Print("Listening for replies...\n");
2390 ServerList_QueryList(true, false);
2393 void Net_SlistQW_f(void)
2395 ServerList_ResetMasks();
2396 serverlist_sortbyfield = SLIF_PING;
2397 serverlist_sortdescending = false;
2398 if (m_state != m_slist) {
2399 Con_Print("Sending requests to master servers\n");
2400 ServerList_QueryList(false, true);
2401 serverlist_consoleoutput = true;
2402 Con_Print("Listening for replies...\n");
2404 ServerList_QueryList(false, true);
2407 void NetConn_Init(void)
2410 lhnetaddress_t tempaddress;
2411 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2412 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2413 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
2414 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
2415 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2416 Cvar_RegisterVariable(&net_slist_queriespersecond);
2417 Cvar_RegisterVariable(&net_slist_queriesperframe);
2418 Cvar_RegisterVariable(&net_slist_timeout);
2419 Cvar_RegisterVariable(&net_slist_maxtries);
2420 Cvar_RegisterVariable(&net_messagetimeout);
2421 Cvar_RegisterVariable(&net_messagerejointimeout);
2422 Cvar_RegisterVariable(&net_connecttimeout);
2423 Cvar_RegisterVariable(&cl_netlocalping);
2424 Cvar_RegisterVariable(&cl_netpacketloss);
2425 Cvar_RegisterVariable(&hostname);
2426 Cvar_RegisterVariable(&developer_networking);
2427 Cvar_RegisterVariable(&cl_netport);
2428 Cvar_RegisterVariable(&sv_netport);
2429 Cvar_RegisterVariable(&net_address);
2430 //Cvar_RegisterVariable(&net_address_ipv6);
2431 Cvar_RegisterVariable(&sv_public);
2432 Cvar_RegisterVariable(&sv_heartbeatperiod);
2433 for (i = 0;sv_masters[i].name;i++)
2434 Cvar_RegisterVariable(&sv_masters[i]);
2435 Cvar_RegisterVariable(&gameversion);
2436 // COMMANDLINEOPTION: Server: -ip <ipaddress> sets the ip address of this machine for purposes of networking (default 0.0.0.0 also known as INADDR_ANY), use only if you have multiple network adapters and need to choose one specifically.
2437 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2439 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2441 Con_Printf("-ip option used, setting net_address to \"%s\"\n");
2442 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2445 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2447 // COMMANDLINEOPTION: Server: -port <portnumber> sets the port to use for a server (default 26000, the same port as QUAKE itself), useful if you host multiple servers on your machine
2448 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2450 i = atoi(com_argv[i + 1]);
2451 if (i >= 0 && i < 65536)
2453 Con_Printf("-port option used, setting port cvar to %i\n", i);
2454 Cvar_SetValueQuick(&sv_netport, i);
2457 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2461 net_message.data = net_message_buf;
2462 net_message.maxsize = sizeof(net_message_buf);
2463 net_message.cursize = 0;
2467 void NetConn_Shutdown(void)
2469 NetConn_CloseClientPorts();
2470 NetConn_CloseServerPorts();