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 /* statistic counters */
90 static int packetsSent = 0;
91 static int packetsReSent = 0;
92 static int packetsReceived = 0;
93 static int receivedDuplicateCount = 0;
94 static int droppedDatagrams = 0;
96 static int unreliableMessagesSent = 0;
97 static int unreliableMessagesReceived = 0;
98 static int reliableMessagesSent = 0;
99 static int reliableMessagesReceived = 0;
101 double masterquerytime = -1000;
102 int masterquerycount = 0;
103 int masterreplycount = 0;
104 int serverquerycount = 0;
105 int serverreplycount = 0;
107 // this is only false if there are still servers left to query
108 int serverlist_querysleep = true;
110 static unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
111 static unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
114 lhnetsocket_t *cl_sockets[16];
116 lhnetsocket_t *sv_sockets[16];
118 netconn_t *netconn_list = NULL;
119 mempool_t *netconn_mempool = NULL;
121 cvar_t cl_netport = {0, "cl_port", "0", "forces client to use chosen port number if not 0"};
122 cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to"};
123 cvar_t net_address = {0, "net_address", "0.0.0.0", "network address to open ports on"};
124 //cvar_t net_netaddress_ipv6 = {0, "net_address_ipv6", "[0:0:0:0:0:0:0:0]", "network address to open ipv6 ports on"};
126 // ServerList interface
127 serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT];
128 serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT];
130 serverlist_infofield_t serverlist_sortbyfield;
131 qboolean serverlist_sortdescending;
133 int serverlist_viewcount = 0;
134 serverlist_entry_t *serverlist_viewlist[SERVERLIST_VIEWLISTSIZE];
136 int serverlist_cachecount;
137 serverlist_entry_t serverlist_cache[SERVERLIST_TOTALSIZE];
139 qboolean serverlist_consoleoutput;
141 // helper function to insert a value into the viewset
142 // spare entries will be removed
143 static void _ServerList_ViewList_Helper_InsertBefore( int index, serverlist_entry_t *entry )
146 if( serverlist_viewcount < SERVERLIST_VIEWLISTSIZE ) {
147 i = serverlist_viewcount++;
149 i = SERVERLIST_VIEWLISTSIZE - 1;
152 for( ; i > index ; i-- )
153 serverlist_viewlist[ i ] = serverlist_viewlist[ i - 1 ];
155 serverlist_viewlist[index] = entry;
158 // we suppose serverlist_viewcount to be valid, ie > 0
159 static void _ServerList_ViewList_Helper_Remove( int index )
161 serverlist_viewcount--;
162 for( ; index < serverlist_viewcount ; index++ )
163 serverlist_viewlist[index] = serverlist_viewlist[index + 1];
166 // returns true if A should be inserted before B
167 static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_entry_t *B )
169 int result = 0; // > 0 if for numbers A > B and for text if A < B
171 switch( serverlist_sortbyfield ) {
173 result = A->info.ping - B->info.ping;
175 case SLIF_MAXPLAYERS:
176 result = A->info.maxplayers - B->info.maxplayers;
178 case SLIF_NUMPLAYERS:
179 result = A->info.numplayers - B->info.numplayers;
182 result = A->info.protocol - B->info.protocol;
185 result = strcmp( B->info.cname, A->info.cname );
188 result = strcmp( B->info.game, A->info.game );
191 result = strcmp( B->info.map, A->info.map );
194 result = strcmp( B->info.mod, A->info.mod );
197 result = strcmp( B->info.name, A->info.name );
200 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
204 if( serverlist_sortdescending )
209 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
211 // This should actually be done with some intermediate and end-of-function return
223 case SLMO_GREATEREQUAL:
225 case SLMO_NOTCONTAIN:
228 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
233 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
236 char bufferA[ 256 ], bufferB[ 256 ]; // should be more than enough
237 for (i = 0;i < (int)sizeof(bufferA)-1 && A[i];i++)
238 bufferA[i] = (A[i] >= 'A' && A[i] <= 'Z') ? (A[i] + 'a' - 'A') : A[i];
240 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
241 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
244 // Same here, also using an intermediate & final return would be more appropriate
248 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
249 case SLMO_NOTCONTAIN:
250 return !*bufferB || !strstr( bufferA, bufferB );
252 return strcmp( bufferA, bufferB ) < 0;
254 return strcmp( bufferA, bufferB ) <= 0;
256 return strcmp( bufferA, bufferB ) == 0;
258 return strcmp( bufferA, bufferB ) > 0;
260 return strcmp( bufferA, bufferB ) != 0;
261 case SLMO_GREATEREQUAL:
262 return strcmp( bufferA, bufferB ) >= 0;
264 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
269 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
271 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
273 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
275 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
277 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
279 if( *mask->info.cname
280 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
283 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
286 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
289 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
292 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
297 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
301 // FIXME: change this to be more readable (...)
302 // now check whether it passes through the masks
303 for( start = 0 ; serverlist_andmasks[start].active && start < SERVERLIST_ANDMASKCOUNT ; start++ )
304 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
307 for( start = 0 ; serverlist_ormasks[start].active && start < SERVERLIST_ORMASKCOUNT ; start++ )
308 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
310 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
313 if( !serverlist_viewcount ) {
314 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
317 // ok, insert it, we just need to find out where exactly:
320 // check whether to insert it as new first item
321 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
322 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
324 } // check whether to insert it as new last item
325 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
326 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
330 end = serverlist_viewcount - 1;
331 while( end > start + 1 )
333 mid = (start + end) / 2;
334 // test the item that lies in the middle between start and end
335 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
336 // the item has to be in the upper half
339 // the item has to be in the lower half
342 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
345 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
348 for( i = 0; i < serverlist_viewcount; i++ )
350 if (serverlist_viewlist[i] == entry)
352 _ServerList_ViewList_Helper_Remove(i);
358 void ServerList_RebuildViewList(void)
362 serverlist_viewcount = 0;
363 for( i = 0 ; i < serverlist_cachecount ; i++ )
364 if( serverlist_cache[i].query == SQS_QUERIED )
365 ServerList_ViewList_Insert( &serverlist_cache[i] );
368 void ServerList_ResetMasks(void)
370 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
371 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
375 static void _ServerList_Test(void)
378 for( i = 0 ; i < 1024 ; i++ ) {
379 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
380 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
381 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
382 serverlist_cache[serverlist_cachecount].finished = true;
383 sprintf( serverlist_cache[serverlist_cachecount].line1, "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
384 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
385 serverlist_cachecount++;
390 void ServerList_QueryList(void)
392 masterquerytime = realtime;
393 masterquerycount = 0;
394 masterreplycount = 0;
395 serverquerycount = 0;
396 serverreplycount = 0;
397 serverlist_cachecount = 0;
398 serverlist_viewcount = 0;
399 serverlist_consoleoutput = false;
401 //_ServerList_Test();
403 NetConn_QueryMasters();
408 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
410 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
414 if (cl_netpacketloss.integer)
415 for (i = 0;i < cl_numsockets;i++)
416 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss.integer)
418 if (developer_networking.integer)
420 char addressstring[128], addressstring2[128];
421 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
424 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
425 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", mysocket, addressstring, data, maxlength, peeraddress, length, addressstring2);
426 Com_HexDumpToConsole((unsigned char *)data, length);
429 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", mysocket, addressstring, data, maxlength, peeraddress, length);
434 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
438 if (cl_netpacketloss.integer)
439 for (i = 0;i < cl_numsockets;i++)
440 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss.integer)
442 ret = LHNET_Write(mysocket, data, length, peeraddress);
443 if (developer_networking.integer)
445 char addressstring[128], addressstring2[128];
446 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
447 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
448 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", mysocket, addressstring, data, length, peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
449 Com_HexDumpToConsole((unsigned char *)data, length);
454 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
456 // note this does not include the trailing NULL because we add that in the parser
457 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
460 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol)
462 if (protocol == PROTOCOL_QUAKEWORLD)
465 qboolean sendreliable;
467 // note that it is ok to send empty messages to the qw server,
468 // otherwise it won't respond to us at all
470 sendreliable = false;
471 // if the remote side dropped the last reliable message, resend it
472 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
474 // if the reliable transmit buffer is empty, copy the current message out
475 if (!conn->sendMessageLength && conn->message.cursize)
477 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
478 conn->sendMessageLength = conn->message.cursize;
479 SZ_Clear(&conn->message); // clear the message buffer
480 conn->qw.reliable_sequence ^= 1;
483 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
484 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->qw.outgoing_sequence | ((unsigned int)sendreliable<<31));
485 // last received unreliable packet number, and last received reliable packet number (0 or 1)
486 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
488 conn->qw.outgoing_sequence++;
489 // client sends qport in every packet
490 if (conn == cls.netcon)
492 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
495 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
497 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
500 // add the reliable message if there is one
503 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
504 packetLen += conn->sendMessageLength;
505 conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence;
507 // add the unreliable message if possible
508 if (packetLen + data->cursize <= 1400)
510 memcpy(sendbuffer + packetLen, data->data, data->cursize);
511 packetLen += data->cursize;
514 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
517 unreliableMessagesSent++;
519 // delay later packets to obey rate limit
520 conn->qw.cleartime = max(conn->qw.cleartime, realtime) + packetLen * conn->qw.rate;
526 unsigned int packetLen;
527 unsigned int dataLen;
529 unsigned int *header;
531 // if a reliable message fragment has been lost, send it again
532 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
534 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
536 dataLen = conn->sendMessageLength;
541 dataLen = MAX_PACKETFRAGMENT;
545 packetLen = NET_HEADERSIZE + dataLen;
547 header = (unsigned int *)sendbuffer;
548 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
549 header[1] = BigLong(conn->nq.sendSequence - 1);
550 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
552 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
554 conn->lastSendTime = realtime;
559 // if we have a new reliable message to send, do so
560 if (!conn->sendMessageLength && conn->message.cursize)
562 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
564 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, sizeof(conn->sendMessage));
565 conn->message.overflowed = true;
569 if (developer_networking.integer && conn == cls.netcon)
571 Con_Print("client sending reliable message to server:\n");
572 SZ_HexDumpToConsole(&conn->message);
575 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
576 conn->sendMessageLength = conn->message.cursize;
577 SZ_Clear(&conn->message);
579 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
581 dataLen = conn->sendMessageLength;
586 dataLen = MAX_PACKETFRAGMENT;
590 packetLen = NET_HEADERSIZE + dataLen;
592 header = (unsigned int *)sendbuffer;
593 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
594 header[1] = BigLong(conn->nq.sendSequence);
595 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
597 conn->nq.sendSequence++;
599 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
601 conn->lastSendTime = realtime;
603 reliableMessagesSent++;
606 // if we have an unreliable message to send, do so
609 packetLen = NET_HEADERSIZE + data->cursize;
611 if (packetLen > (int)sizeof(sendbuffer))
613 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
617 header = (unsigned int *)sendbuffer;
618 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
619 header[1] = BigLong(conn->nq.unreliableSendSequence);
620 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
622 conn->nq.unreliableSendSequence++;
624 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
627 unreliableMessagesSent++;
633 void NetConn_CloseClientPorts(void)
635 for (;cl_numsockets > 0;cl_numsockets--)
636 if (cl_sockets[cl_numsockets - 1])
637 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
640 void NetConn_OpenClientPort(const char *addressstring, int defaultport)
642 lhnetaddress_t address;
644 char addressstring2[1024];
645 if (LHNETADDRESS_FromString(&address, addressstring, defaultport))
647 if ((s = LHNET_OpenSocket_Connectionless(&address)))
649 cl_sockets[cl_numsockets++] = s;
650 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
651 Con_Printf("Client opened a socket on address %s\n", addressstring2);
655 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
656 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
660 Con_Printf("Client unable to parse address %s\n", addressstring);
663 void NetConn_OpenClientPorts(void)
666 NetConn_CloseClientPorts();
667 port = bound(0, cl_netport.integer, 65535);
668 if (cl_netport.integer != port)
669 Cvar_SetValueQuick(&cl_netport, port);
670 Con_Printf("Client using port %i\n", port);
671 NetConn_OpenClientPort("local:2", 0);
672 NetConn_OpenClientPort(net_address.string, port);
673 //NetConn_OpenClientPort(net_address_ipv6.string, port);
676 void NetConn_CloseServerPorts(void)
678 for (;sv_numsockets > 0;sv_numsockets--)
679 if (sv_sockets[sv_numsockets - 1])
680 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
683 void NetConn_OpenServerPort(const char *addressstring, int defaultport)
685 lhnetaddress_t address;
688 char addressstring2[1024];
690 for (port = defaultport; port <= defaultport + 100; port++)
692 if (LHNETADDRESS_FromString(&address, addressstring, port))
694 if ((s = LHNET_OpenSocket_Connectionless(&address)))
696 sv_sockets[sv_numsockets++] = s;
697 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
698 Con_Printf("Server listening on address %s\n", addressstring2);
703 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
704 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
709 Con_Printf("Server unable to parse address %s\n", addressstring);
710 // if it cant parse one address, it wont be able to parse another for sure
716 void NetConn_OpenServerPorts(int opennetports)
719 NetConn_CloseServerPorts();
720 NetConn_UpdateSockets();
721 port = bound(0, sv_netport.integer, 65535);
724 Con_Printf("Server using port %i\n", port);
725 if (sv_netport.integer != port)
726 Cvar_SetValueQuick(&sv_netport, port);
727 if (cls.state != ca_dedicated)
728 NetConn_OpenServerPort("local:1", 0);
731 NetConn_OpenServerPort(net_address.string, port);
732 //NetConn_OpenServerPort(net_address_ipv6.string, port);
734 if (sv_numsockets == 0)
735 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
738 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
740 int i, a = LHNETADDRESS_GetAddressType(address);
741 for (i = 0;i < cl_numsockets;i++)
742 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
743 return cl_sockets[i];
747 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
749 int i, a = LHNETADDRESS_GetAddressType(address);
750 for (i = 0;i < sv_numsockets;i++)
751 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
752 return sv_sockets[i];
756 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
759 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
760 conn->mysocket = mysocket;
761 conn->peeraddress = *peeraddress;
762 conn->lastMessageTime = realtime;
763 conn->message.data = conn->messagedata;
764 conn->message.maxsize = sizeof(conn->messagedata);
765 conn->message.cursize = 0;
766 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
767 // reduce effectiveness of connection request floods
768 conn->timeout = realtime + net_connecttimeout.value;
769 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
770 conn->next = netconn_list;
775 void NetConn_Close(netconn_t *conn)
778 // remove connection from list
779 if (conn == netconn_list)
780 netconn_list = conn->next;
783 for (c = netconn_list;c;c = c->next)
787 c->next = conn->next;
791 // not found in list, we'll avoid crashing here...
799 static int clientport = -1;
800 static int clientport2 = -1;
801 static int hostport = -1;
802 void NetConn_UpdateSockets(void)
804 if (cls.state != ca_dedicated)
806 if (clientport2 != cl_netport.integer)
808 clientport2 = cl_netport.integer;
809 if (cls.state == ca_connected)
810 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
812 if (cls.state == ca_disconnected && clientport != clientport2)
814 clientport = clientport2;
815 NetConn_CloseClientPorts();
817 if (cl_numsockets == 0)
818 NetConn_OpenClientPorts();
821 if (hostport != sv_netport.integer)
823 hostport = sv_netport.integer;
825 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
829 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol)
834 if (protocol == PROTOCOL_QUAKEWORLD)
836 int sequence, sequence_ack;
837 int reliable_ack, reliable_message;
841 sequence = LittleLong(*((int *)(data + 0)));
842 sequence_ack = LittleLong(*((int *)(data + 4)));
846 if (conn != cls.netcon)
851 // 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?)
852 qport = LittleShort(*((int *)(data + 8)));
858 reliable_message = (sequence >> 31) & 1;
859 reliable_ack = (sequence_ack >> 31) & 1;
860 sequence &= ~(1<<31);
861 sequence_ack &= ~(1<<31);
862 if (sequence <= conn->qw.incoming_sequence)
864 Con_DPrint("Got a stale datagram\n");
867 count = sequence - (conn->qw.incoming_sequence + 1);
870 droppedDatagrams += count;
871 Con_DPrintf("Dropped %u datagram(s)\n", count);
873 if (reliable_ack == conn->qw.reliable_sequence)
875 // received, now we will be able to send another reliable message
876 conn->sendMessageLength = 0;
877 reliableMessagesReceived++;
879 conn->qw.incoming_sequence = sequence;
880 conn->qw.incoming_acknowledged = sequence_ack;
881 conn->qw.incoming_reliable_acknowledged = reliable_ack;
882 if (reliable_message)
883 conn->qw.incoming_reliable_sequence ^= 1;
884 conn->lastMessageTime = realtime;
885 conn->timeout = realtime + net_messagetimeout.value;
886 unreliableMessagesReceived++;
887 SZ_Clear(&net_message);
888 SZ_Write(&net_message, data, length);
896 unsigned int sequence;
899 qlength = (unsigned int)BigLong(((int *)data)[0]);
900 flags = qlength & ~NETFLAG_LENGTH_MASK;
901 qlength &= NETFLAG_LENGTH_MASK;
902 // control packets were already handled
903 if (!(flags & NETFLAG_CTL) && qlength == length)
905 sequence = BigLong(((int *)data)[1]);
909 if (flags & NETFLAG_UNRELIABLE)
911 if (sequence >= conn->nq.unreliableReceiveSequence)
913 if (sequence > conn->nq.unreliableReceiveSequence)
915 count = sequence - conn->nq.unreliableReceiveSequence;
916 droppedDatagrams += count;
917 Con_DPrintf("Dropped %u datagram(s)\n", count);
919 conn->nq.unreliableReceiveSequence = sequence + 1;
920 conn->lastMessageTime = realtime;
921 conn->timeout = realtime + net_messagetimeout.value;
922 unreliableMessagesReceived++;
925 SZ_Clear(&net_message);
926 SZ_Write(&net_message, data, length);
932 Con_DPrint("Got a stale datagram\n");
935 else if (flags & NETFLAG_ACK)
937 if (sequence == (conn->nq.sendSequence - 1))
939 if (sequence == conn->nq.ackSequence)
941 conn->nq.ackSequence++;
942 if (conn->nq.ackSequence != conn->nq.sendSequence)
943 Con_DPrint("ack sequencing error\n");
944 conn->lastMessageTime = realtime;
945 conn->timeout = realtime + net_messagetimeout.value;
946 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
948 unsigned int packetLen;
949 unsigned int dataLen;
951 unsigned int *header;
953 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
954 memcpy(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
956 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
958 dataLen = conn->sendMessageLength;
963 dataLen = MAX_PACKETFRAGMENT;
967 packetLen = NET_HEADERSIZE + dataLen;
969 header = (unsigned int *)sendbuffer;
970 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
971 header[1] = BigLong(conn->nq.sendSequence);
972 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
974 conn->nq.sendSequence++;
976 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
978 conn->lastSendTime = realtime;
983 conn->sendMessageLength = 0;
986 Con_DPrint("Duplicate ACK received\n");
989 Con_DPrint("Stale ACK received\n");
992 else if (flags & NETFLAG_DATA)
994 unsigned int temppacket[2];
995 temppacket[0] = BigLong(8 | NETFLAG_ACK);
996 temppacket[1] = BigLong(sequence);
997 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
998 if (sequence == conn->nq.receiveSequence)
1000 conn->lastMessageTime = realtime;
1001 conn->timeout = realtime + net_messagetimeout.value;
1002 conn->nq.receiveSequence++;
1003 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1004 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1005 conn->receiveMessageLength += length;
1007 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1008 "Dropping the message!\n", sequence );
1009 conn->receiveMessageLength = 0;
1012 if (flags & NETFLAG_EOM)
1014 reliableMessagesReceived++;
1015 length = conn->receiveMessageLength;
1016 conn->receiveMessageLength = 0;
1019 SZ_Clear(&net_message);
1020 SZ_Write(&net_message, conn->receiveMessage, length);
1027 receivedDuplicateCount++;
1035 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1037 cls.connect_trying = false;
1038 M_Update_Return_Reason("");
1039 // the connection request succeeded, stop current connection and set up a new connection
1041 // if we're connecting to a remote server, shut down any local server
1042 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1043 Host_ShutdownServer ();
1044 // allocate a net connection to keep track of things
1045 cls.netcon = NetConn_Open(mysocket, peeraddress);
1046 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1047 key_dest = key_game;
1049 cls.demonum = -1; // not in the demo loop now
1050 cls.state = ca_connected;
1051 cls.signon = 0; // need all the signon messages before playing
1052 cls.protocol = initialprotocol;
1053 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1054 Cmd_ForwardStringToServer("new");
1057 int NetConn_IsLocalGame(void)
1059 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1064 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1066 qboolean fromserver;
1067 int ret, c, control;
1069 char *string, addressstring2[128], cname[128], ipstring[32];
1070 char stringbuf[16384];
1072 // quakeworld ingame packet
1073 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1075 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1077 // received a command string - strip off the packaging and put it
1078 // into our string buffer with NULL termination
1081 length = min(length, (int)sizeof(stringbuf) - 1);
1082 memcpy(stringbuf, data, length);
1083 stringbuf[length] = 0;
1086 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1088 if (developer.integer)
1090 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1091 Com_HexDumpToConsole(data, length);
1094 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1096 // darkplaces or quake3
1097 char protocolnames[1400];
1098 Protocol_Names(protocolnames, sizeof(protocolnames));
1099 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1100 M_Update_Return_Reason("Got challenge response");
1101 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1104 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')))
1107 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1108 Con_Printf("\"%s\" received, sending QuakeWorld connect request back to %s\n", string, addressstring2);
1109 M_Update_Return_Reason("Got QuakeWorld challenge response");
1110 cls.qw_qport = qport.integer;
1111 NetConn_WriteString(mysocket, va("\377\377\377\377connect 28 %i %i \"%s\"\n", cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1113 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1115 // darkplaces or quake3
1116 M_Update_Return_Reason("Accepted");
1117 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1120 if (length > 1 && string[0] == 'j' && cls.connect_trying)
1123 M_Update_Return_Reason("QuakeWorld Accepted");
1124 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1127 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1129 char rejectreason[32];
1130 cls.connect_trying = false;
1132 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1133 memcpy(rejectreason, string, length);
1134 rejectreason[length] = 0;
1135 M_Update_Return_Reason(rejectreason);
1138 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1140 serverlist_info_t *info;
1145 // serverlist only uses text addresses
1146 LHNETADDRESS_ToString(peeraddress, cname, sizeof(cname), true);
1147 // search the cache for this server and update it
1148 for( n = 0; n < serverlist_cachecount; n++ )
1149 if( !strcmp( cname, serverlist_cache[n].info.cname ) )
1151 if( n == serverlist_cachecount ) {
1152 // LAN search doesnt require an answer from the master server so we wont
1153 // know the ping nor will it be initialized already...
1156 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1159 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1160 // store the data the engine cares about (address and ping)
1161 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, cname, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1162 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1163 serverlist_cache[serverlist_cachecount].querytime = realtime;
1164 // if not in the slist menu we should print the server to console
1165 if (serverlist_consoleoutput) {
1166 Con_Printf("querying %s\n", ipstring);
1169 ++serverlist_cachecount;
1172 info = &serverlist_cache[n].info;
1173 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));else info->game[0] = 0;
1174 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1175 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1176 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1177 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);else info->protocol = -1;
1178 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);else info->numplayers = 0;
1179 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1181 if (info->ping == 100000)
1184 pingtime = (int)((realtime - serverlist_cache[n].querytime) * 1000.0);
1185 pingtime = bound(0, pingtime, 9999);
1187 info->ping = pingtime;
1189 // legacy/old stuff move it to the menu ASAP
1191 // build description strings for the things users care about
1192 dpsnprintf(serverlist_cache[n].line1, sizeof(serverlist_cache[n].line1), "%c%c%5d%c%c%c%3u/%3u %-65.65s", STRING_COLOR_TAG, pingtime >= 300 ? '1' : (pingtime >= 200 ? '3' : '7'), (int)pingtime, STRING_COLOR_TAG, STRING_COLOR_DEFAULT + '0', info->protocol != NET_PROTOCOL_VERSION ? '*' : ' ', info->numplayers, info->maxplayers, info->name);
1193 dpsnprintf(serverlist_cache[n].line2, sizeof(serverlist_cache[n].line2), "%-21.21s %-19.19s %-17.17s %-20.20s", info->cname, info->game, info->mod, info->map);
1194 if( serverlist_cache[n].query == SQS_QUERIED ) {
1195 ServerList_ViewList_Remove( &serverlist_cache[n] );
1197 // if not in the slist menu we should print the server to console (if wanted)
1198 else if( serverlist_consoleoutput )
1199 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1200 // and finally, update the view set
1201 ServerList_ViewList_Insert( &serverlist_cache[n] );
1202 serverlist_cache[n].query = SQS_QUERIED;
1206 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1208 // Extract the IP addresses
1212 if (serverlist_consoleoutput)
1213 Con_Print("received DarkPlaces server list...\n");
1214 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1218 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1219 if (developer.integer)
1220 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1221 // ignore the rest of the message if the serverlist is full
1222 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1224 // also ignore it if we have already queried it (other master server response)
1225 for( n = 0 ; n < serverlist_cachecount ; n++ )
1226 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1228 if( n >= serverlist_cachecount )
1232 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1233 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_DARKPLACES7;
1234 // store the data the engine cares about (address and ping)
1235 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1236 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1237 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1239 ++serverlist_cachecount;
1242 // move on to next address in packet
1246 // begin or resume serverlist queries
1247 serverlist_querysleep = false;
1250 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1252 // Extract the IP addresses
1256 if (serverlist_consoleoutput)
1257 Con_Print("received QuakeWorld server list...\n");
1258 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1262 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1263 if (developer.integer)
1264 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1265 // ignore the rest of the message if the serverlist is full
1266 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1268 // also ignore it if we have already queried it (other master server response)
1269 for( n = 0 ; n < serverlist_cachecount ; n++ )
1270 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1272 if( n >= serverlist_cachecount )
1276 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1277 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_QUAKEWORLD;
1278 // store the data the engine cares about (address and ping)
1279 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1280 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1281 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1283 ++serverlist_cachecount;
1286 // move on to next address in packet
1290 // begin or resume serverlist queries
1291 serverlist_querysleep = false;
1295 if (!strncmp(string, "ping", 4))
1297 if (developer.integer)
1298 Con_Printf("Received ping from %s, sending ack\n", UDP_AddrToString(readaddr));
1299 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1302 if (!strncmp(string, "ack", 3))
1305 // QuakeWorld compatibility
1306 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1309 M_Update_Return_Reason("Accepted");
1310 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1313 if (length > 1 && string[0] == 'c' && string[1] >= '0' && string[1] <= '9' && cls.connect_trying)
1315 // challenge message
1316 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1317 Con_Printf("challenge %s received, sending connect request back to %s\n", string + 1, addressstring2);
1318 M_Update_Return_Reason("Got challenge response");
1319 cls.qw_qport = qport.integer;
1320 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1321 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "name", cl_name.string);
1322 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "topcolor", va("%i", (cl_color.integer >> 4) & 15));
1323 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "bottomcolor", va("%i", (cl_color.integer) & 15));
1324 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "rate", va("%i", cl_rate.integer));
1325 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "msg", "1");
1326 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ver", engineversion);
1327 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1330 if (length > 2 && !memcmp(string, "n\\", 2))
1332 serverlist_info_t *info;
1337 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1340 // serverlist only uses text addresses
1341 LHNETADDRESS_ToString(peeraddress, cname, sizeof(cname), true);
1342 // search the cache for this server and update it
1343 for( n = 0; n < serverlist_cachecount; n++ )
1344 if( !strcmp( cname, serverlist_cache[n].info.cname ) )
1346 if( n == serverlist_cachecount ) {
1347 // LAN search doesnt require an answer from the master server so we wont
1348 // know the ping nor will it be initialized already...
1351 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1354 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1355 // store the data the engine cares about (address and ping)
1356 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, cname, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1357 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1358 serverlist_cache[serverlist_cachecount].querytime = realtime;
1359 // if not in the slist menu we should print the server to console
1360 if (serverlist_consoleoutput) {
1361 Con_Printf("querying %s\n", ipstring);
1364 ++serverlist_cachecount;
1367 info = &serverlist_cache[n].info;
1368 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));else info->game[0] = 0;
1369 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1370 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1371 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1372 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);else info->protocol = -1;
1373 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);else info->numplayers = 0;
1374 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1376 if (info->ping == 100000)
1379 pingtime = (int)((realtime - serverlist_cache[n].querytime) * 1000.0);
1380 pingtime = bound(0, pingtime, 9999);
1382 info->ping = pingtime;
1384 // legacy/old stuff move it to the menu ASAP
1386 // build description strings for the things users care about
1387 dpsnprintf(serverlist_cache[n].line1, sizeof(serverlist_cache[n].line1), "%c%c%5d%c%c%c%3u/%3u %-65.65s", STRING_COLOR_TAG, pingtime >= 300 ? '1' : (pingtime >= 200 ? '3' : '7'), (int)pingtime, STRING_COLOR_TAG, STRING_COLOR_DEFAULT + '0', info->protocol != NET_PROTOCOL_VERSION ? '*' : ' ', info->numplayers, info->maxplayers, info->name);
1388 dpsnprintf(serverlist_cache[n].line2, sizeof(serverlist_cache[n].line2), "%-21.21s %-19.19s %-17.17s %-20.20s", info->cname, info->game, info->mod, info->map);
1389 if( serverlist_cache[n].query == SQS_QUERIED ) {
1390 ServerList_ViewList_Remove( &serverlist_cache[n] );
1392 // if not in the slist menu we should print the server to console (if wanted)
1393 else if( serverlist_consoleoutput )
1394 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1395 // and finally, update the view set
1396 ServerList_ViewList_Insert( &serverlist_cache[n] );
1397 serverlist_cache[n].query = SQS_QUERIED;
1401 if (string[0] == 'n')
1404 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1406 // we may not have liked the packet, but it was a command packet, so
1407 // we're done processing this packet now
1410 // quakeworld ingame packet
1411 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol)) == 2)
1414 CL_ParseServerMessage();
1417 // netquake control packets, supported for compatibility only
1418 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1423 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1427 if (developer.integer)
1428 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1429 if (cls.connect_trying)
1431 lhnetaddress_t clientportaddress;
1432 clientportaddress = *peeraddress;
1435 unsigned int port = (data[0] << 0) | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
1438 LHNETADDRESS_SetPort(&clientportaddress, port);
1440 M_Update_Return_Reason("Accepted");
1441 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1445 if (developer.integer)
1446 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1447 cls.connect_trying = false;
1448 M_Update_Return_Reason((char *)data);
1451 case CCREP_SERVER_INFO:
1452 if (developer.integer)
1453 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1454 if (cls.state != ca_dedicated)
1456 // LordHavoc: because the UDP driver reports 0.0.0.0:26000 as the address
1457 // string we just ignore it and keep the real address
1459 // serverlist only uses text addresses
1460 cname = UDP_AddrToString(readaddr);
1461 // search the cache for this server
1462 for (n = 0; n < hostCacheCount; n++)
1463 if (!strcmp(cname, serverlist[n].cname))
1466 if (n == hostCacheCount && hostCacheCount < SERVERLISTSIZE)
1469 memset(&serverlist[n], 0, sizeof(serverlist[n]));
1470 strlcpy (serverlist[n].name, MSG_ReadString(), sizeof (serverlist[n].name));
1471 strlcpy (serverlist[n].map, MSG_ReadString(), sizeof (serverlist[n].map));
1472 serverlist[n].users = MSG_ReadByte();
1473 serverlist[n].maxusers = MSG_ReadByte();
1475 if (c != NET_PROTOCOL_VERSION)
1477 strlcpy (serverlist[n].cname, serverlist[n].name, sizeof (serverlist[n].cname));
1478 strcpy(serverlist[n].name, "*");
1479 strlcat (serverlist[n].name, serverlist[n].cname, sizeof(serverlist[n].name));
1481 strlcpy (serverlist[n].cname, cname, sizeof (serverlist[n].cname));
1485 case CCREP_PLAYER_INFO:
1486 // we got a CCREP_PLAYER_INFO??
1487 //if (developer.integer)
1488 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1490 case CCREP_RULE_INFO:
1491 // we got a CCREP_RULE_INFO??
1492 //if (developer.integer)
1493 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1499 // we may not have liked the packet, but it was a valid control
1500 // packet, so we're done processing this packet now
1504 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol)) == 2)
1505 CL_ParseServerMessage();
1509 void NetConn_QueryQueueFrame(void)
1515 static double querycounter = 0;
1517 if (serverlist_querysleep)
1520 // each time querycounter reaches 1.0 issue a query
1521 querycounter += host_realframetime * net_slist_queriespersecond.value;
1522 maxqueries = (int)querycounter;
1523 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1524 querycounter -= maxqueries;
1526 if( maxqueries == 0 ) {
1530 // scan serverlist and issue queries as needed
1531 serverlist_querysleep = true;
1533 timeouttime = realtime - net_slist_timeout.value;
1534 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1536 serverlist_entry_t *entry = &serverlist_cache[ index ];
1537 if( entry->query != SQS_QUERYING )
1542 serverlist_querysleep = false;
1543 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1548 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1550 lhnetaddress_t address;
1553 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1554 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1556 for (socket = 0; socket < cl_numsockets ; socket++)
1557 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1561 for (socket = 0; socket < cl_numsockets ; socket++)
1562 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1565 entry->querytime = realtime;
1566 entry->querycounter++;
1568 // if not in the slist menu we should print the server to console
1569 if (serverlist_consoleoutput)
1570 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1576 entry->query = SQS_TIMEDOUT;
1581 void NetConn_ClientFrame(void)
1584 lhnetaddress_t peeraddress;
1585 NetConn_UpdateSockets();
1586 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1588 if (cls.connect_remainingtries == 0)
1589 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1590 cls.connect_nextsendtime = realtime + 1;
1591 cls.connect_remainingtries--;
1592 if (cls.connect_remainingtries <= -10)
1594 cls.connect_trying = false;
1595 M_Update_Return_Reason("Connect: Failed");
1598 // try challenge first (newer DP server or QW)
1599 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1600 // then try netquake as a fallback (old server, or netquake)
1601 SZ_Clear(&net_message);
1602 // save space for the header, filled in later
1603 MSG_WriteLong(&net_message, 0);
1604 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1605 MSG_WriteString(&net_message, "QUAKE");
1606 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1607 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1608 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1609 SZ_Clear(&net_message);
1611 for (i = 0;i < cl_numsockets;i++)
1612 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1613 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1614 NetConn_QueryQueueFrame();
1615 if (cls.netcon && realtime > cls.netcon->timeout)
1617 Con_Print("Connection timed out\n");
1619 Host_ShutdownServer ();
1623 #define MAX_CHALLENGES 128
1626 lhnetaddress_t address;
1630 challenge[MAX_CHALLENGES];
1632 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1636 for (i = 0;i < bufferlength - 1;i++)
1640 c = rand () % (127 - 33) + 33;
1641 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1647 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1649 unsigned int nb_clients = 0, i;
1652 // How many clients are there?
1653 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1654 if (svs.clients[i].active)
1657 // TODO: we should add more information for the full status string
1658 length = dpsnprintf(out_msg, out_size,
1659 "\377\377\377\377%s\x0A"
1660 "\\gamename\\%s\\modname\\%s\\sv_maxclients\\%d"
1661 "\\clients\\%d\\mapname\\%s\\hostname\\%s""\\protocol\\%d"
1664 fullstatus ? "statusResponse" : "infoResponse",
1665 gamename, com_modname, svs.maxclients,
1666 nb_clients, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1667 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1668 fullstatus ? "\n" : "");
1670 // Make sure it fits in the buffer
1679 ptr = out_msg + length;
1680 left = (int)out_size - length;
1682 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1684 client_t *cl = &svs.clients[i];
1687 int nameind, cleanind;
1689 char cleanname [sizeof(cl->name)];
1691 // Remove all characters '"' and '\' in the player name
1696 curchar = cl->name[nameind++];
1697 if (curchar != '"' && curchar != '\\')
1699 cleanname[cleanind++] = curchar;
1700 if (cleanind == sizeof(cleanname) - 1)
1703 } while (curchar != '\0');
1705 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1707 (int)(cl->ping * 1000.0f),
1720 extern void SV_SendServerinfo (client_t *client);
1721 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1723 int i, ret, clientnum, best;
1727 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
1729 // see if we can identify the sender as a local player
1730 // (this is necessary for rcon to send a reliable reply if the client is
1731 // actually on the server, not sending remotely)
1732 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1733 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
1735 if (i == svs.maxclients)
1740 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1742 // received a command string - strip off the packaging and put it
1743 // into our string buffer with NULL termination
1746 length = min(length, (int)sizeof(stringbuf) - 1);
1747 memcpy(stringbuf, data, length);
1748 stringbuf[length] = 0;
1751 if (developer.integer)
1753 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1754 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
1755 Com_HexDumpToConsole(data, length);
1758 if (length >= 12 && !memcmp(string, "getchallenge", 12))
1760 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
1762 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
1764 if (besttime > challenge[i].time)
1765 besttime = challenge[best = i].time;
1767 // if we did not find an exact match, choose the oldest and
1768 // update address and string
1769 if (i == MAX_CHALLENGES)
1772 challenge[i].address = *peeraddress;
1773 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
1775 challenge[i].time = realtime;
1776 // send the challenge
1777 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
1780 if (length > 8 && !memcmp(string, "connect\\", 8))
1784 if ((s = SearchInfostring(string, "challenge")))
1786 // validate the challenge
1787 for (i = 0;i < MAX_CHALLENGES;i++)
1788 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
1790 if (i < MAX_CHALLENGES)
1792 // check engine protocol
1793 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
1795 if (developer.integer)
1796 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
1797 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
1801 // see if this is a duplicate connection request
1802 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
1803 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
1805 if (clientnum < svs.maxclients && realtime - client->connecttime < net_messagerejointimeout.value)
1807 // client is still trying to connect,
1808 // so we send a duplicate reply
1809 if (developer.integer)
1810 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
1811 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
1814 else if (clientnum < svs.maxclients)
1816 if (realtime - client->netconnection->lastMessageTime >= net_messagerejointimeout.value)
1818 // client crashed and is coming back, keep their stuff intact
1819 SV_SendServerinfo(client);
1820 //host_client = client;
1821 //SV_DropClient (true);
1828 // this is a new client, find a slot
1829 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
1830 if (!client->active)
1832 if (clientnum < svs.maxclients)
1834 // prepare the client struct
1835 if ((conn = NetConn_Open(mysocket, peeraddress)))
1837 // allocated connection
1838 LHNETADDRESS_ToString(peeraddress, conn->address, sizeof(conn->address), true);
1839 if (developer.integer)
1840 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
1841 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
1842 // now set up the client
1844 SV_ConnectClient(clientnum, conn);
1846 NetConn_Heartbeat(1);
1852 if (developer.integer)
1853 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
1854 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
1862 if (length >= 7 && !memcmp(string, "getinfo", 7))
1864 const char *challenge = NULL;
1866 // If there was a challenge in the getinfo message
1867 if (length > 8 && string[7] == ' ')
1868 challenge = string + 8;
1870 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
1872 if (developer.integer)
1873 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
1874 NetConn_WriteString(mysocket, response, peeraddress);
1878 if (length >= 9 && !memcmp(string, "getstatus", 9))
1880 const char *challenge = NULL;
1882 // If there was a challenge in the getinfo message
1883 if (length > 10 && string[9] == ' ')
1884 challenge = string + 10;
1886 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
1888 if (developer.integer)
1889 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
1890 NetConn_WriteString(mysocket, response, peeraddress);
1894 if (length >= 5 && !memcmp(string, "rcon ", 5))
1897 char *s = string + 5;
1899 for (i = 0;*s > ' ';s++)
1900 if (i < (int)sizeof(password) - 1)
1903 if (password[0] > ' ' && !strcmp(rcon_password.string, password))
1905 // looks like a legitimate rcon command with the correct password
1906 Con_Printf("server received rcon command from %s:\n%s\n", host_client ? host_client->name : addressstring2, s);
1907 rcon_redirect = true;
1908 rcon_redirect_bufferpos = 0;
1909 Cmd_ExecuteString(s, src_command);
1910 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
1911 rcon_redirect = false;
1912 // print resulting text to client
1913 // if client is playing, send a reliable reply instead of
1917 // if the netconnection is loop, then this is the
1918 // local player on a listen mode server, and it would
1919 // result in duplicate printing to the console
1920 // (not that the local player should be using rcon
1921 // when they have the console)
1922 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
1923 SV_ClientPrintf("%s", rcon_redirect_buffer);
1928 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
1929 NetConn_WriteString(mysocket, response, peeraddress);
1935 if (!strncmp(string, "ping", 4))
1937 if (developer.integer)
1938 Con_Printf("Received ping from %s, sending ack\n", UDP_AddrToString(readaddr));
1939 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1942 if (!strncmp(string, "ack", 3))
1945 // we may not have liked the packet, but it was a command packet, so
1946 // we're done processing this packet now
1949 // LordHavoc: disabled netquake control packet support in server
1953 // netquake control packets, supported for compatibility only
1954 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1959 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1963 //if (developer.integer)
1964 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
1965 if (length >= (int)strlen("QUAKE") + 1 + 1)
1967 if (memcmp(data, "QUAKE", strlen("QUAKE") + 1) != 0 || (int)data[strlen("QUAKE") + 1] != NET_PROTOCOL_VERSION)
1969 if (developer.integer)
1970 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
1971 SZ_Clear(&net_message);
1972 // save space for the header, filled in later
1973 MSG_WriteLong(&net_message, 0);
1974 MSG_WriteByte(&net_message, CCREP_REJECT);
1975 MSG_WriteString(&net_message, "Incompatible version.\n");
1976 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1977 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
1978 SZ_Clear(&net_message);
1982 // see if this is a duplicate connection request
1983 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
1984 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
1986 if (clientnum < svs.maxclients)
1988 // duplicate connection request
1989 if (realtime - client->connecttime < 2.0)
1991 // client is still trying to connect,
1992 // so we send a duplicate reply
1993 if (developer.integer)
1994 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
1995 SZ_Clear(&net_message);
1996 // save space for the header, filled in later
1997 MSG_WriteLong(&net_message, 0);
1998 MSG_WriteByte(&net_message, CCREP_ACCEPT);
1999 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2000 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2001 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2002 SZ_Clear(&net_message);
2005 else if (realtime - client->netconnection->lastMessageTime >= net_messagerejointimeout.value)
2007 SV_SendServerinfo(client);
2008 // the old client hasn't sent us anything
2009 // in quite a while, so kick off and let
2010 // the retry take care of it...
2011 //host_client = client;
2012 //SV_DropClient (true);
2018 // this is a new client, find a slot
2019 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2020 if (!client->active)
2022 if (clientnum < svs.maxclients && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2024 // connect to the client
2025 // everything is allocated, just fill in the details
2026 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2027 if (developer.integer)
2028 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2029 // send back the info about the server connection
2030 SZ_Clear(&net_message);
2031 // save space for the header, filled in later
2032 MSG_WriteLong(&net_message, 0);
2033 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2034 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2035 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2036 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2037 SZ_Clear(&net_message);
2038 // now set up the client struct
2040 SV_ConnectClient(clientnum, conn);
2042 NetConn_Heartbeat(1);
2046 //if (developer.integer)
2047 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2048 // no room; try to let player know
2049 SZ_Clear(&net_message);
2050 // save space for the header, filled in later
2051 MSG_WriteLong(&net_message, 0);
2052 MSG_WriteByte(&net_message, CCREP_REJECT);
2053 MSG_WriteString(&net_message, "Server is full.\n");
2054 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2055 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2056 SZ_Clear(&net_message);
2063 case CCREQ_SERVER_INFO:
2064 if (developer.integer)
2065 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2066 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2068 if (developer.integer)
2069 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2070 SZ_Clear(&net_message);
2071 // save space for the header, filled in later
2072 MSG_WriteLong(&net_message, 0);
2073 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2074 UDP_GetSocketAddr(UDP_acceptSock, &newaddr);
2075 MSG_WriteString(&net_message, UDP_AddrToString(&newaddr));
2076 MSG_WriteString(&net_message, hostname.string);
2077 MSG_WriteString(&net_message, sv.name);
2078 MSG_WriteByte(&net_message, net_activeconnections);
2079 MSG_WriteByte(&net_message, svs.maxclients);
2080 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2081 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2082 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2083 SZ_Clear(&net_message);
2086 case CCREQ_PLAYER_INFO:
2087 if (developer.integer)
2088 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2091 int playerNumber, activeNumber, clientNumber;
2094 playerNumber = MSG_ReadByte();
2096 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2097 if (client->active && ++activeNumber == playerNumber)
2099 if (clientNumber != svs.maxclients)
2101 SZ_Clear(&net_message);
2102 // save space for the header, filled in later
2103 MSG_WriteLong(&net_message, 0);
2104 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2105 MSG_WriteByte(&net_message, playerNumber);
2106 MSG_WriteString(&net_message, client->name);
2107 MSG_WriteLong(&net_message, client->colors);
2108 MSG_WriteLong(&net_message, (int)client->edict->fields.server->frags);
2109 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2110 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2111 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2112 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2113 SZ_Clear(&net_message);
2117 case CCREQ_RULE_INFO:
2118 if (developer.integer)
2119 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2125 // find the search start location
2126 prevCvarName = MSG_ReadString();
2127 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2129 // send the response
2130 SZ_Clear(&net_message);
2131 // save space for the header, filled in later
2132 MSG_WriteLong(&net_message, 0);
2133 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2136 MSG_WriteString(&net_message, var->name);
2137 MSG_WriteString(&net_message, var->string);
2139 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2140 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2141 SZ_Clear(&net_message);
2148 // we may not have liked the packet, but it was a valid control
2149 // packet, so we're done processing this packet now
2156 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol)) == 2)
2159 SV_ReadClientMessage();
2168 void NetConn_ServerFrame(void)
2171 lhnetaddress_t peeraddress;
2172 NetConn_UpdateSockets();
2173 for (i = 0;i < sv_numsockets;i++)
2174 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2175 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2176 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2178 // never timeout loopback connections
2179 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2181 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2182 SV_DropClient(false);
2187 void NetConn_QueryMasters(void)
2191 lhnetaddress_t masteraddress;
2192 lhnetaddress_t broadcastaddress;
2195 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2198 // 26000 is the default quake server port, servers on other ports will not
2200 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2201 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2203 for (i = 0;i < cl_numsockets;i++)
2207 // search LAN for Quake servers
2208 SZ_Clear(&net_message);
2209 // save space for the header, filled in later
2210 MSG_WriteLong(&net_message, 0);
2211 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2212 MSG_WriteString(&net_message, "QUAKE");
2213 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2214 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2215 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2216 SZ_Clear(&net_message);
2218 // search LAN for DarkPlaces servers
2219 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2221 // build the getservers message to send to the dpmaster master servers
2222 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2225 for (masternum = 0;sv_masters[masternum].name;masternum++)
2227 if (sv_masters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2230 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2234 // build the getservers message to send to the qwmaster master servers
2235 // note this has no -1 prefix, and the trailing nul byte is sent
2236 dpsnprintf(request, sizeof(request), "c\n");
2239 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2241 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2244 NetConn_Write(cl_sockets[i], request, 7, &masteraddress);
2249 if (!masterquerycount)
2251 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2252 M_Update_Return_Reason("No network");
2256 void NetConn_Heartbeat(int priority)
2258 lhnetaddress_t masteraddress;
2260 lhnetsocket_t *mysocket;
2262 // if it's a state change (client connected), limit next heartbeat to no
2263 // more than 30 sec in the future
2264 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2265 nextheartbeattime = realtime + 30.0;
2267 // limit heartbeatperiod to 30 to 270 second range,
2268 // lower limit is to avoid abusing master servers with excess traffic,
2269 // upper limit is to avoid timing out on the master server (which uses
2271 if (sv_heartbeatperiod.value < 30)
2272 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2273 if (sv_heartbeatperiod.value > 270)
2274 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2276 // make advertising optional and don't advertise singleplayer games, and
2277 // only send a heartbeat as often as the admin wants
2278 if (sv.active && sv_public.integer && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2280 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2281 for (masternum = 0;sv_masters[masternum].name;masternum++)
2282 if (sv_masters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2283 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2287 static void Net_Heartbeat_f(void)
2290 NetConn_Heartbeat(2);
2292 Con_Print("No server running, can not heartbeat to master server.\n");
2295 void PrintStats(netconn_t *conn)
2297 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2298 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2300 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2303 void Net_Stats_f(void)
2306 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2307 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2308 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2309 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2310 Con_Printf("packetsSent = %i\n", packetsSent);
2311 Con_Printf("packetsReSent = %i\n", packetsReSent);
2312 Con_Printf("packetsReceived = %i\n", packetsReceived);
2313 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2314 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2315 Con_Print("connections =\n");
2316 for (conn = netconn_list;conn;conn = conn->next)
2320 void Net_Slist_f(void)
2322 ServerList_ResetMasks();
2323 serverlist_sortbyfield = SLIF_PING;
2324 serverlist_sortdescending = false;
2325 if (m_state != m_slist) {
2326 Con_Print("Sending requests to master servers\n");
2327 ServerList_QueryList();
2328 serverlist_consoleoutput = true;
2329 Con_Print("Listening for replies...\n");
2331 ServerList_QueryList();
2334 void NetConn_Init(void)
2337 lhnetaddress_t tempaddress;
2338 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2339 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2340 Cmd_AddCommand("net_slist", Net_Slist_f, "query master series and print all server information");
2341 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2342 Cvar_RegisterVariable(&net_slist_queriespersecond);
2343 Cvar_RegisterVariable(&net_slist_queriesperframe);
2344 Cvar_RegisterVariable(&net_slist_timeout);
2345 Cvar_RegisterVariable(&net_slist_maxtries);
2346 Cvar_RegisterVariable(&net_messagetimeout);
2347 Cvar_RegisterVariable(&net_messagerejointimeout);
2348 Cvar_RegisterVariable(&net_connecttimeout);
2349 Cvar_RegisterVariable(&cl_netlocalping);
2350 Cvar_RegisterVariable(&cl_netpacketloss);
2351 Cvar_RegisterVariable(&hostname);
2352 Cvar_RegisterVariable(&developer_networking);
2353 Cvar_RegisterVariable(&cl_netport);
2354 Cvar_RegisterVariable(&sv_netport);
2355 Cvar_RegisterVariable(&net_address);
2356 //Cvar_RegisterVariable(&net_address_ipv6);
2357 Cvar_RegisterVariable(&sv_public);
2358 Cvar_RegisterVariable(&sv_heartbeatperiod);
2359 for (i = 0;sv_masters[i].name;i++)
2360 Cvar_RegisterVariable(&sv_masters[i]);
2361 // 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.
2362 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2364 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2366 Con_Printf("-ip option used, setting net_address to \"%s\"\n");
2367 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2370 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2372 // 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
2373 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2375 i = atoi(com_argv[i + 1]);
2376 if (i >= 0 && i < 65536)
2378 Con_Printf("-port option used, setting port cvar to %i\n", i);
2379 Cvar_SetValueQuick(&sv_netport, i);
2382 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2386 net_message.data = net_message_buf;
2387 net_message.maxsize = sizeof(net_message_buf);
2388 net_message.cursize = 0;
2392 void NetConn_Shutdown(void)
2394 NetConn_CloseClientPorts();
2395 NetConn_CloseServerPorts();