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", "1: advertises this server on the master server (so that players can find it in the server browser); 0: allow direct queries only; -1: do not respond to direct queries; -2: do not allow anyone to connect"};
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", "excalibur.nvg.ntnu.no", "default master server 3 (admin: tChr)"}, // admin: tChr
45 static cvar_t sv_qwmasters [] =
47 {CVAR_SAVE, "sv_qwmaster1", "", "user-chosen qwmaster server 1"},
48 {CVAR_SAVE, "sv_qwmaster2", "", "user-chosen qwmaster server 2"},
49 {CVAR_SAVE, "sv_qwmaster3", "", "user-chosen qwmaster server 3"},
50 {CVAR_SAVE, "sv_qwmaster4", "", "user-chosen qwmaster server 4"},
51 {0, "sv_qwmasterextra1", "192.246.40.37:27000", "id Limbo (admin: id Software)"},
52 {0, "sv_qwmasterextra2", "192.246.40.37:27002", "id CTF (admin: id Software)"},
53 {0, "sv_qwmasterextra3", "192.246.40.37:27003", "id TeamFortress (admin: id Software)"},
54 {0, "sv_qwmasterextra4", "192.246.40.37:27004", "id Miscilaneous (admin: id Software)"},
55 {0, "sv_qwmasterextra5", "192.246.40.37:27006", "id Deathmatch Only (admin: id Software)"},
56 {0, "sv_qwmasterextra6", "150.254.66.120:27000", "Poland's master server. (admin: unknown)"},
57 {0, "sv_qwmasterextra7", "62.112.145.129:27000", "Ocrana master server. (admin: unknown)"},
58 {0, "sv_qwmasterextra8", "master.edome.net", "edome master server. (admin: unknown)"},
59 {0, "sv_qwmasterextra9", "qwmaster.barrysworld.com", "barrysworld master server. (admin: unknown)"},
60 {0, "sv_qwmasterextra10", "qwmaster.ocrana.de:27000", "Ocrana2 master server. (admin: unknown)"},
61 {0, "sv_qwmasterextra11", "213.221.174.165:27000", "unknown1 master server. (admin: unknown)"},
62 {0, "sv_qwmasterextra12", "195.74.0.8", "unknown2 master server. (admin: unknown)"},
63 {0, "sv_qwmasterextra13", "204.182.161.2", "unknown3 master server. (admin: unknown)"},
67 static double nextheartbeattime = 0;
69 sizebuf_t net_message;
70 static unsigned char net_message_buf[NET_MAXMESSAGE];
72 cvar_t net_messagetimeout = {0, "net_messagetimeout","300", "drops players who have not sent any packets for this many seconds"};
73 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)"};
74 cvar_t net_connectfloodblockingtimeout = {0, "net_connectfloodblockingtimeout", "5", "when a connection packet is received, it will block all future connect packets from that IP address for this many seconds (cuts down on connect floods)"};
75 cvar_t hostname = {CVAR_SAVE, "hostname", "UNNAMED", "server message to show in server browser"};
76 cvar_t developer_networking = {0, "developer_networking", "0", "prints all received and sent packets (recommended only for debugging)"};
78 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)"};
79 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)"};
80 static cvar_t net_slist_queriespersecond = {0, "net_slist_queriespersecond", "20", "how many server information requests to send per second"};
81 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)"};
82 static cvar_t net_slist_timeout = {0, "net_slist_timeout", "4", "how long to listen for a server information response before giving up"};
83 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)"};
85 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"};
87 /* statistic counters */
88 static int packetsSent = 0;
89 static int packetsReSent = 0;
90 static int packetsReceived = 0;
91 static int receivedDuplicateCount = 0;
92 static int droppedDatagrams = 0;
94 static int unreliableMessagesSent = 0;
95 static int unreliableMessagesReceived = 0;
96 static int reliableMessagesSent = 0;
97 static int reliableMessagesReceived = 0;
99 double masterquerytime = -1000;
100 int masterquerycount = 0;
101 int masterreplycount = 0;
102 int serverquerycount = 0;
103 int serverreplycount = 0;
105 // this is only false if there are still servers left to query
106 static qboolean serverlist_querysleep = true;
107 // this is pushed a second or two ahead of realtime whenever a master server
108 // reply is received, to avoid issuing queries while master replies are still
109 // flooding in (which would make a mess of the ping times)
110 static double serverlist_querywaittime = 0;
112 static unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
113 static unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
115 static int cl_numsockets;
116 static lhnetsocket_t *cl_sockets[16];
117 static int sv_numsockets;
118 static lhnetsocket_t *sv_sockets[16];
120 netconn_t *netconn_list = NULL;
121 mempool_t *netconn_mempool = NULL;
123 cvar_t cl_netport = {0, "cl_port", "0", "forces client to use chosen port number if not 0"};
124 cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to"};
125 cvar_t net_address = {0, "net_address", "0.0.0.0", "network address to open ports on"};
126 //cvar_t net_netaddress_ipv6 = {0, "net_address_ipv6", "[0:0:0:0:0:0:0:0]", "network address to open ipv6 ports on"};
128 char net_extresponse[NET_EXTRESPONSE_MAX][1400];
129 int net_extresponse_count = 0;
130 int net_extresponse_last = 0;
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.numbots - B->info.numbots;
191 result = A->info.numhumans - B->info.numhumans;
194 result = A->info.protocol - B->info.protocol;
197 result = strcmp( B->info.cname, A->info.cname );
200 result = strcmp( B->info.game, A->info.game );
203 result = strcmp( B->info.map, A->info.map );
206 result = strcmp( B->info.mod, A->info.mod );
209 result = strcmp( B->info.name, A->info.name );
212 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
216 if( serverlist_sortdescending )
220 // if the chosen sort key is identical, sort by index
221 // (makes this a stable sort, so that later replies from servers won't
222 // shuffle the servers around when they have the same ping)
226 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
228 // This should actually be done with some intermediate and end-of-function return
240 case SLMO_GREATEREQUAL:
242 case SLMO_NOTCONTAIN:
245 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
250 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
253 char bufferA[ 256 ], bufferB[ 256 ]; // should be more than enough
254 for (i = 0;i < (int)sizeof(bufferA)-1 && A[i];i++)
255 bufferA[i] = (A[i] >= 'A' && A[i] <= 'Z') ? (A[i] + 'a' - 'A') : A[i];
257 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
258 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
261 // Same here, also using an intermediate & final return would be more appropriate
265 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
266 case SLMO_NOTCONTAIN:
267 return !*bufferB || !strstr( bufferA, bufferB );
269 return strcmp( bufferA, bufferB ) < 0;
271 return strcmp( bufferA, bufferB ) <= 0;
273 return strcmp( bufferA, bufferB ) == 0;
275 return strcmp( bufferA, bufferB ) > 0;
277 return strcmp( bufferA, bufferB ) != 0;
278 case SLMO_GREATEREQUAL:
279 return strcmp( bufferA, bufferB ) >= 0;
281 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
286 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
288 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
290 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
292 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
294 if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) )
296 if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) )
298 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
300 if( *mask->info.cname
301 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
304 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
307 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
310 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
313 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
318 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
322 // reject incompatible servers
323 if (entry->info.gameversion != gameversion.integer)
326 // FIXME: change this to be more readable (...)
327 // now check whether it passes through the masks
328 for( start = 0 ; serverlist_andmasks[start].active && start < SERVERLIST_ANDMASKCOUNT ; start++ )
329 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
332 for( start = 0 ; serverlist_ormasks[start].active && start < SERVERLIST_ORMASKCOUNT ; start++ )
333 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
335 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
338 if( !serverlist_viewcount ) {
339 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
342 // ok, insert it, we just need to find out where exactly:
345 // check whether to insert it as new first item
346 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
347 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
349 } // check whether to insert it as new last item
350 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
351 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
355 end = serverlist_viewcount - 1;
356 while( end > start + 1 )
358 mid = (start + end) / 2;
359 // test the item that lies in the middle between start and end
360 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
361 // the item has to be in the upper half
364 // the item has to be in the lower half
367 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
370 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
373 for( i = 0; i < serverlist_viewcount; i++ )
375 if (serverlist_viewlist[i] == entry)
377 _ServerList_ViewList_Helper_Remove(i);
383 void ServerList_RebuildViewList(void)
387 serverlist_viewcount = 0;
388 for( i = 0 ; i < serverlist_cachecount ; i++ )
389 if( serverlist_cache[i].query == SQS_QUERIED )
390 ServerList_ViewList_Insert( &serverlist_cache[i] );
393 void ServerList_ResetMasks(void)
397 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
398 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
399 // numbots needs to be compared to -1 to always succeed
400 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
401 serverlist_andmasks[i].info.numbots = -1;
402 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
403 serverlist_ormasks[i].info.numbots = -1;
407 static void _ServerList_Test(void)
410 for( i = 0 ; i < 1024 ; i++ ) {
411 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
412 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
413 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
414 serverlist_cache[serverlist_cachecount].finished = true;
415 sprintf( serverlist_cache[serverlist_cachecount].line1, "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
416 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
417 serverlist_cachecount++;
422 void ServerList_QueryList(qboolean querydp, qboolean queryqw)
424 masterquerytime = realtime;
425 masterquerycount = 0;
426 masterreplycount = 0;
427 serverquerycount = 0;
428 serverreplycount = 0;
429 serverlist_cachecount = 0;
430 serverlist_viewcount = 0;
431 serverlist_consoleoutput = false;
433 //_ServerList_Test();
435 NetConn_QueryMasters(querydp, queryqw);
440 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
442 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
446 if (cl_netpacketloss.integer)
447 for (i = 0;i < cl_numsockets;i++)
448 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss.integer)
450 if (developer_networking.integer)
452 char addressstring[128], addressstring2[128];
453 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
456 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
457 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", mysocket, addressstring, data, maxlength, peeraddress, length, addressstring2);
458 Com_HexDumpToConsole((unsigned char *)data, length);
461 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", mysocket, addressstring, data, maxlength, peeraddress, length);
466 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
470 if (cl_netpacketloss.integer)
471 for (i = 0;i < cl_numsockets;i++)
472 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss.integer)
474 ret = LHNET_Write(mysocket, data, length, peeraddress);
475 if (developer_networking.integer)
477 char addressstring[128], addressstring2[128];
478 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
479 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
480 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", mysocket, addressstring, data, length, peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
481 Com_HexDumpToConsole((unsigned char *)data, length);
486 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
488 // note this does not include the trailing NULL because we add that in the parser
489 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
492 qboolean NetConn_CanSend(netconn_t *conn)
494 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
495 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
496 conn->outgoing_reliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
497 conn->outgoing_acksize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
498 if (realtime > conn->cleartime)
502 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_CHOKEDPACKET;
507 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate)
511 // if this packet was supposedly choked, but we find ourselves sending one
512 // anyway, make sure the size counting starts at zero
513 // (this mostly happens on level changes and disconnects and such)
514 if (conn->outgoing_unreliablesize[conn->outgoing_packetcounter] == NETGRAPH_CHOKEDPACKET)
515 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
517 if (protocol == PROTOCOL_QUAKEWORLD)
520 qboolean sendreliable;
522 // note that it is ok to send empty messages to the qw server,
523 // otherwise it won't respond to us at all
525 sendreliable = false;
526 // if the remote side dropped the last reliable message, resend it
527 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
529 // if the reliable transmit buffer is empty, copy the current message out
530 if (!conn->sendMessageLength && conn->message.cursize)
532 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
533 conn->sendMessageLength = conn->message.cursize;
534 SZ_Clear(&conn->message); // clear the message buffer
535 conn->qw.reliable_sequence ^= 1;
538 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
539 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->qw.outgoing_sequence | ((unsigned int)sendreliable<<31));
540 // last received unreliable packet number, and last received reliable packet number (0 or 1)
541 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
543 conn->qw.outgoing_sequence++;
544 // client sends qport in every packet
545 if (conn == cls.netcon)
547 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
549 // also update cls.qw_outgoing_sequence
550 cls.qw_outgoing_sequence = conn->qw.outgoing_sequence;
552 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
554 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
558 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
560 // add the reliable message if there is one
563 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += conn->sendMessageLength;
564 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
565 packetLen += conn->sendMessageLength;
566 conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence;
569 // add the unreliable message if possible
570 if (packetLen + data->cursize <= 1400)
572 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += data->cursize;
573 memcpy(sendbuffer + packetLen, data->data, data->cursize);
574 packetLen += data->cursize;
577 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
580 unreliableMessagesSent++;
582 totallen += packetLen + 18;
586 unsigned int packetLen;
587 unsigned int dataLen;
589 unsigned int *header;
591 // if a reliable message fragment has been lost, send it again
592 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
594 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
596 dataLen = conn->sendMessageLength;
601 dataLen = MAX_PACKETFRAGMENT;
605 packetLen = NET_HEADERSIZE + dataLen;
607 header = (unsigned int *)sendbuffer;
608 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
609 header[1] = BigLong(conn->nq.sendSequence - 1);
610 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
612 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
614 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
616 conn->lastSendTime = realtime;
620 totallen += packetLen + 18;
623 // if we have a new reliable message to send, do so
624 if (!conn->sendMessageLength && conn->message.cursize)
626 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
628 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
629 conn->message.overflowed = true;
633 if (developer_networking.integer && conn == cls.netcon)
635 Con_Print("client sending reliable message to server:\n");
636 SZ_HexDumpToConsole(&conn->message);
639 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
640 conn->sendMessageLength = conn->message.cursize;
641 SZ_Clear(&conn->message);
643 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
645 dataLen = conn->sendMessageLength;
650 dataLen = MAX_PACKETFRAGMENT;
654 packetLen = NET_HEADERSIZE + dataLen;
656 header = (unsigned int *)sendbuffer;
657 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
658 header[1] = BigLong(conn->nq.sendSequence);
659 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
661 conn->nq.sendSequence++;
663 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
665 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
667 conn->lastSendTime = realtime;
669 reliableMessagesSent++;
671 totallen += packetLen + 18;
674 // if we have an unreliable message to send, do so
677 packetLen = NET_HEADERSIZE + data->cursize;
679 if (packetLen > (int)sizeof(sendbuffer))
681 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
685 header = (unsigned int *)sendbuffer;
686 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
687 header[1] = BigLong(conn->nq.unreliableSendSequence);
688 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
690 conn->nq.unreliableSendSequence++;
692 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
694 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
697 unreliableMessagesSent++;
700 totallen += packetLen + 18;
704 // delay later packets to obey rate limit
705 if (conn->cleartime < realtime - 0.1)
706 conn->cleartime = realtime - 0.1;
707 conn->cleartime = conn->cleartime + (double)totallen / (double)rate;
708 if (conn->cleartime < realtime)
709 conn->cleartime = realtime;
714 void NetConn_CloseClientPorts(void)
716 for (;cl_numsockets > 0;cl_numsockets--)
717 if (cl_sockets[cl_numsockets - 1])
718 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
721 void NetConn_OpenClientPort(const char *addressstring, int defaultport)
723 lhnetaddress_t address;
725 char addressstring2[1024];
726 if (LHNETADDRESS_FromString(&address, addressstring, defaultport))
728 if ((s = LHNET_OpenSocket_Connectionless(&address)))
730 cl_sockets[cl_numsockets++] = s;
731 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
732 Con_Printf("Client opened a socket on address %s\n", addressstring2);
736 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
737 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
741 Con_Printf("Client unable to parse address %s\n", addressstring);
744 void NetConn_OpenClientPorts(void)
747 NetConn_CloseClientPorts();
748 port = bound(0, cl_netport.integer, 65535);
749 if (cl_netport.integer != port)
750 Cvar_SetValueQuick(&cl_netport, port);
751 Con_Printf("Client using port %i\n", port);
752 NetConn_OpenClientPort("local:2", 0);
753 NetConn_OpenClientPort(net_address.string, port);
754 //NetConn_OpenClientPort(net_address_ipv6.string, port);
757 void NetConn_CloseServerPorts(void)
759 for (;sv_numsockets > 0;sv_numsockets--)
760 if (sv_sockets[sv_numsockets - 1])
761 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
764 void NetConn_OpenServerPort(const char *addressstring, int defaultport)
766 lhnetaddress_t address;
769 char addressstring2[1024];
771 for (port = defaultport; port <= defaultport + 100; port++)
773 if (LHNETADDRESS_FromString(&address, addressstring, port))
775 if ((s = LHNET_OpenSocket_Connectionless(&address)))
777 sv_sockets[sv_numsockets++] = s;
778 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
779 Con_Printf("Server listening on address %s\n", addressstring2);
784 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
785 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
790 Con_Printf("Server unable to parse address %s\n", addressstring);
791 // if it cant parse one address, it wont be able to parse another for sure
797 void NetConn_OpenServerPorts(int opennetports)
800 NetConn_CloseServerPorts();
801 NetConn_UpdateSockets();
802 port = bound(0, sv_netport.integer, 65535);
805 Con_Printf("Server using port %i\n", port);
806 if (sv_netport.integer != port)
807 Cvar_SetValueQuick(&sv_netport, port);
808 if (cls.state != ca_dedicated)
809 NetConn_OpenServerPort("local:1", 0);
812 NetConn_OpenServerPort(net_address.string, port);
813 //NetConn_OpenServerPort(net_address_ipv6.string, port);
815 if (sv_numsockets == 0)
816 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
819 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
821 int i, a = LHNETADDRESS_GetAddressType(address);
822 for (i = 0;i < cl_numsockets;i++)
823 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
824 return cl_sockets[i];
828 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
830 int i, a = LHNETADDRESS_GetAddressType(address);
831 for (i = 0;i < sv_numsockets;i++)
832 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
833 return sv_sockets[i];
837 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
840 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
841 conn->mysocket = mysocket;
842 conn->peeraddress = *peeraddress;
843 conn->lastMessageTime = realtime;
844 conn->message.data = conn->messagedata;
845 conn->message.maxsize = sizeof(conn->messagedata);
846 conn->message.cursize = 0;
847 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
848 // reduce effectiveness of connection request floods
849 conn->timeout = realtime + net_connecttimeout.value;
850 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
851 conn->next = netconn_list;
856 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress);
857 void NetConn_Close(netconn_t *conn)
860 // remove connection from list
862 // allow the client to reconnect immediately
863 NetConn_ClearConnectFlood(&(conn->peeraddress));
865 if (conn == netconn_list)
866 netconn_list = conn->next;
869 for (c = netconn_list;c;c = c->next)
873 c->next = conn->next;
877 // not found in list, we'll avoid crashing here...
885 static int clientport = -1;
886 static int clientport2 = -1;
887 static int hostport = -1;
888 void NetConn_UpdateSockets(void)
890 if (cls.state != ca_dedicated)
892 if (clientport2 != cl_netport.integer)
894 clientport2 = cl_netport.integer;
895 if (cls.state == ca_connected)
896 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
898 if (cls.state == ca_disconnected && clientport != clientport2)
900 clientport = clientport2;
901 NetConn_CloseClientPorts();
903 if (cl_numsockets == 0)
904 NetConn_OpenClientPorts();
907 if (hostport != sv_netport.integer)
909 hostport = sv_netport.integer;
911 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
915 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout)
917 int originallength = length;
921 // TODO: add netgraph stuff rather than just packetloss counting...
923 if (protocol == PROTOCOL_QUAKEWORLD)
925 int sequence, sequence_ack;
926 int reliable_ack, reliable_message;
930 sequence = LittleLong(*((int *)(data + 0)));
931 sequence_ack = LittleLong(*((int *)(data + 4)));
935 if (conn != cls.netcon)
940 // 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?)
941 qport = LittleShort(*((int *)(data + 8)));
947 reliable_message = (sequence >> 31) & 1;
948 reliable_ack = (sequence_ack >> 31) & 1;
949 sequence &= ~(1<<31);
950 sequence_ack &= ~(1<<31);
951 if (sequence <= conn->qw.incoming_sequence)
953 //Con_DPrint("Got a stale datagram\n");
956 count = sequence - (conn->qw.incoming_sequence + 1);
959 droppedDatagrams += count;
960 //Con_DPrintf("Dropped %u datagram(s)\n", count);
963 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
964 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
965 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
966 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
969 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
970 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
971 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
972 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
973 if (reliable_ack == conn->qw.reliable_sequence)
975 // received, now we will be able to send another reliable message
976 conn->sendMessageLength = 0;
977 reliableMessagesReceived++;
979 conn->qw.incoming_sequence = sequence;
980 if (conn == cls.netcon)
981 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
982 conn->qw.incoming_acknowledged = sequence_ack;
983 conn->qw.incoming_reliable_acknowledged = reliable_ack;
984 if (reliable_message)
985 conn->qw.incoming_reliable_sequence ^= 1;
986 conn->lastMessageTime = realtime;
987 conn->timeout = realtime + newtimeout;
988 unreliableMessagesReceived++;
989 SZ_Clear(&net_message);
990 SZ_Write(&net_message, data, length);
998 unsigned int sequence;
1001 qlength = (unsigned int)BigLong(((int *)data)[0]);
1002 flags = qlength & ~NETFLAG_LENGTH_MASK;
1003 qlength &= NETFLAG_LENGTH_MASK;
1004 // control packets were already handled
1005 if (!(flags & NETFLAG_CTL) && qlength == length)
1007 sequence = BigLong(((int *)data)[1]);
1011 if (flags & NETFLAG_UNRELIABLE)
1013 if (sequence >= conn->nq.unreliableReceiveSequence)
1015 if (sequence > conn->nq.unreliableReceiveSequence)
1017 count = sequence - conn->nq.unreliableReceiveSequence;
1018 droppedDatagrams += count;
1019 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1022 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1023 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1024 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1025 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1028 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1029 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1030 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1031 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1032 conn->nq.unreliableReceiveSequence = sequence + 1;
1033 conn->lastMessageTime = realtime;
1034 conn->timeout = realtime + newtimeout;
1035 unreliableMessagesReceived++;
1038 SZ_Clear(&net_message);
1039 SZ_Write(&net_message, data, length);
1045 // Con_DPrint("Got a stale datagram\n");
1048 else if (flags & NETFLAG_ACK)
1050 conn->incoming_acksize[conn->incoming_packetcounter] += originallength;
1051 if (sequence == (conn->nq.sendSequence - 1))
1053 if (sequence == conn->nq.ackSequence)
1055 conn->nq.ackSequence++;
1056 if (conn->nq.ackSequence != conn->nq.sendSequence)
1057 Con_DPrint("ack sequencing error\n");
1058 conn->lastMessageTime = realtime;
1059 conn->timeout = realtime + newtimeout;
1060 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1062 unsigned int packetLen;
1063 unsigned int dataLen;
1065 unsigned int *header;
1067 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1068 memcpy(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1070 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1072 dataLen = conn->sendMessageLength;
1077 dataLen = MAX_PACKETFRAGMENT;
1081 packetLen = NET_HEADERSIZE + dataLen;
1083 header = (unsigned int *)sendbuffer;
1084 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
1085 header[1] = BigLong(conn->nq.sendSequence);
1086 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1088 conn->nq.sendSequence++;
1090 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1092 conn->lastSendTime = realtime;
1097 conn->sendMessageLength = 0;
1100 // Con_DPrint("Duplicate ACK received\n");
1103 // Con_DPrint("Stale ACK received\n");
1106 else if (flags & NETFLAG_DATA)
1108 unsigned int temppacket[2];
1109 conn->incoming_reliablesize[conn->incoming_packetcounter] += originallength;
1110 conn->outgoing_acksize[conn->outgoing_packetcounter] += 8;
1111 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1112 temppacket[1] = BigLong(sequence);
1113 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1114 if (sequence == conn->nq.receiveSequence)
1116 conn->lastMessageTime = realtime;
1117 conn->timeout = realtime + newtimeout;
1118 conn->nq.receiveSequence++;
1119 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1120 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1121 conn->receiveMessageLength += length;
1123 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1124 "Dropping the message!\n", sequence );
1125 conn->receiveMessageLength = 0;
1128 if (flags & NETFLAG_EOM)
1130 reliableMessagesReceived++;
1131 length = conn->receiveMessageLength;
1132 conn->receiveMessageLength = 0;
1135 SZ_Clear(&net_message);
1136 SZ_Write(&net_message, conn->receiveMessage, length);
1143 receivedDuplicateCount++;
1151 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1153 cls.connect_trying = false;
1154 M_Update_Return_Reason("");
1155 // the connection request succeeded, stop current connection and set up a new connection
1157 // if we're connecting to a remote server, shut down any local server
1158 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1159 Host_ShutdownServer ();
1160 // allocate a net connection to keep track of things
1161 cls.netcon = NetConn_Open(mysocket, peeraddress);
1162 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1163 key_dest = key_game;
1165 cls.demonum = -1; // not in the demo loop now
1166 cls.state = ca_connected;
1167 cls.signon = 0; // need all the signon messages before playing
1168 cls.protocol = initialprotocol;
1169 // reset move sequence numbering on this new connection
1170 cls.movesequence = 0;
1171 cls.servermovesequence = 0;
1172 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1173 Cmd_ForwardStringToServer("new");
1174 if (cls.protocol == PROTOCOL_QUAKE)
1176 // write a keepalive (clc_nop) as it seems to greatly improve the
1177 // chances of connecting to a netquake server
1179 unsigned char buf[4];
1180 memset(&msg, 0, sizeof(msg));
1182 msg.maxsize = sizeof(buf);
1183 MSG_WriteChar(&msg, clc_nop);
1184 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000);
1188 int NetConn_IsLocalGame(void)
1190 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1195 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1199 // search the cache for this server and update it
1200 for (n = 0;n < serverlist_cachecount;n++)
1201 if (!strcmp(addressstring, serverlist_cache[n].info.cname))
1203 if (n == serverlist_cachecount)
1205 // LAN search doesnt require an answer from the master server so we wont
1206 // know the ping nor will it be initialized already...
1209 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1212 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1213 // store the data the engine cares about (address and ping)
1214 strlcpy(serverlist_cache[serverlist_cachecount].info.cname, addressstring, sizeof(serverlist_cache[serverlist_cachecount].info.cname));
1215 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1216 serverlist_cache[serverlist_cachecount].querytime = realtime;
1217 // if not in the slist menu we should print the server to console
1218 if (serverlist_consoleoutput)
1219 Con_Printf("querying %s\n", addressstring);
1220 ++serverlist_cachecount;
1222 // if this is the first reply from this server, count it as having replied
1223 if (serverlist_cache[n].info.ping == 100000)
1225 pingtime = (int)((realtime - serverlist_cache[n].querytime) * 1000.0 + 0.5);
1226 pingtime = bound(0, pingtime, 9999);
1228 serverlist_cache[n].info.ping = min(serverlist_cache[n].info.ping, pingtime);
1229 // other server info is updated by the caller
1233 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1235 serverlist_info_t *info = &serverlist_cache[n].info;
1236 // update description strings for engine menu and console output
1237 dpsnprintf(serverlist_cache[n].line1, sizeof(serverlist_cache[n].line1), "^%c%5d^7 ^%c%3u^7/%3u %-65.65s", info->ping >= 300 ? '1' : (info->ping >= 200 ? '3' : '7'), (int)info->ping, ((info->numhumans > 0 && info->numhumans < info->maxplayers) ? (info->numhumans >= 4 ? '7' : '3') : '1'), info->numplayers, info->maxplayers, info->name);
1238 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);
1239 if (serverlist_cache[n].query == SQS_QUERIED)
1240 ServerList_ViewList_Remove(&serverlist_cache[n]);
1241 // if not in the slist menu we should print the server to console (if wanted)
1242 else if( serverlist_consoleoutput )
1243 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1244 // and finally, update the view set
1245 ServerList_ViewList_Insert( &serverlist_cache[n] );
1246 serverlist_cache[n].query = SQS_QUERIED;
1249 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1251 qboolean fromserver;
1252 int ret, c, control;
1254 char *string, addressstring2[128], ipstring[32];
1255 char stringbuf[16384];
1257 // quakeworld ingame packet
1258 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1260 // convert the address to a string incase we need it
1261 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1263 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1265 // received a command string - strip off the packaging and put it
1266 // into our string buffer with NULL termination
1269 length = min(length, (int)sizeof(stringbuf) - 1);
1270 memcpy(stringbuf, data, length);
1271 stringbuf[length] = 0;
1274 if (developer_networking.integer)
1276 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1277 Com_HexDumpToConsole(data, length);
1280 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1282 // darkplaces or quake3
1283 char protocolnames[1400];
1284 Protocol_Names(protocolnames, sizeof(protocolnames));
1285 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1286 M_Update_Return_Reason("Got challenge response");
1287 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1288 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1289 // TODO: add userinfo stuff here instead of using NQ commands?
1290 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1293 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1295 // darkplaces or quake3
1296 M_Update_Return_Reason("Accepted");
1297 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1300 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1302 char rejectreason[32];
1303 cls.connect_trying = false;
1305 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1306 memcpy(rejectreason, string, length);
1307 rejectreason[length] = 0;
1308 M_Update_Return_Reason(rejectreason);
1311 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1313 serverlist_info_t *info;
1317 // search the cache for this server and update it
1318 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1322 info = &serverlist_cache[n].info;
1327 info->protocol = -1;
1328 info->numplayers = 0;
1330 info->maxplayers = 0;
1331 info->gameversion = 0;
1332 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1333 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1334 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1335 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1336 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1337 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1338 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1339 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1340 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1341 info->numhumans = info->numplayers - max(0, info->numbots);
1343 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1347 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1349 // Extract the IP addresses
1353 if (serverlist_consoleoutput)
1354 Con_Print("received DarkPlaces server list...\n");
1355 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1359 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1360 if (serverlist_consoleoutput && developer_networking.integer)
1361 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1362 // ignore the rest of the message if the serverlist is full
1363 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1365 // also ignore it if we have already queried it (other master server response)
1366 for( n = 0 ; n < serverlist_cachecount ; n++ )
1367 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1369 if( n >= serverlist_cachecount )
1373 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1374 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_DARKPLACES7;
1375 // store the data the engine cares about (address and ping)
1376 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1377 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1378 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1380 ++serverlist_cachecount;
1383 // move on to next address in packet
1387 // begin or resume serverlist queries
1388 serverlist_querysleep = false;
1389 serverlist_querywaittime = realtime + 3;
1392 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1394 // Extract the IP addresses
1398 if (serverlist_consoleoutput)
1399 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1400 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1404 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1405 if (serverlist_consoleoutput && developer_networking.integer)
1406 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1407 // ignore the rest of the message if the serverlist is full
1408 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1410 // also ignore it if we have already queried it (other master server response)
1411 for( n = 0 ; n < serverlist_cachecount ; n++ )
1412 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1414 if( n >= serverlist_cachecount )
1418 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1419 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_QUAKEWORLD;
1420 // store the data the engine cares about (address and ping)
1421 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1422 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1423 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1425 ++serverlist_cachecount;
1428 // move on to next address in packet
1432 // begin or resume serverlist queries
1433 serverlist_querysleep = false;
1434 serverlist_querywaittime = realtime + 3;
1437 if (!strncmp(string, "extResponse ", 12))
1439 ++net_extresponse_count;
1440 if(net_extresponse_count > NET_EXTRESPONSE_MAX)
1441 net_extresponse_count = NET_EXTRESPONSE_MAX;
1442 net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1443 dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
1446 if (!strncmp(string, "ping", 4))
1448 if (developer.integer >= 10)
1449 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
1450 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1453 if (!strncmp(string, "ack", 3))
1455 // QuakeWorld compatibility
1456 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1458 // challenge message
1459 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1460 M_Update_Return_Reason("Got QuakeWorld challenge response");
1461 cls.qw_qport = qport.integer;
1462 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1463 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1464 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1467 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1470 M_Update_Return_Reason("QuakeWorld Accepted");
1471 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1474 if (length > 2 && !memcmp(string, "n\\", 2))
1476 serverlist_info_t *info;
1480 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1481 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1484 // search the cache for this server and update it
1485 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1489 info = &serverlist_cache[n].info;
1490 strlcpy(info->game, "QuakeWorld", sizeof(info->game));;
1491 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1492 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1493 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1495 info->numplayers = 0; // updated below
1496 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1497 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1499 // count active players on server
1500 // (we could gather more info, but we're just after the number)
1501 s = strchr(string, '\n');
1505 while (s < string + length)
1507 for (;s < string + length && *s != '\n';s++)
1509 if (s >= string + length)
1516 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1520 if (string[0] == 'n')
1523 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1525 // we may not have liked the packet, but it was a command packet, so
1526 // we're done processing this packet now
1529 // quakeworld ingame packet
1530 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1533 CL_ParseServerMessage();
1536 // netquake control packets, supported for compatibility only
1537 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1540 serverlist_info_t *info;
1544 SZ_Clear(&net_message);
1545 SZ_Write(&net_message, data, length);
1551 if (developer.integer >= 10)
1552 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1553 if (cls.connect_trying)
1555 lhnetaddress_t clientportaddress;
1556 clientportaddress = *peeraddress;
1557 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1558 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1559 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1560 M_Update_Return_Reason("Accepted");
1561 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1565 if (developer.integer >= 10)
1566 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1567 cls.connect_trying = false;
1568 M_Update_Return_Reason((char *)MSG_ReadString());
1570 case CCREP_SERVER_INFO:
1571 if (developer.integer >= 10)
1572 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1573 // LordHavoc: because the quake server may report weird addresses
1574 // we just ignore it and keep the real address
1576 // search the cache for this server and update it
1577 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1581 info = &serverlist_cache[n].info;
1582 strlcpy(info->game, "Quake", sizeof(info->game));
1583 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1584 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1585 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1586 info->numplayers = MSG_ReadByte();
1587 info->maxplayers = MSG_ReadByte();
1588 info->protocol = MSG_ReadByte();
1590 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1593 case CCREP_PLAYER_INFO:
1594 // we got a CCREP_PLAYER_INFO??
1595 //if (developer.integer >= 10)
1596 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1598 case CCREP_RULE_INFO:
1599 // we got a CCREP_RULE_INFO??
1600 //if (developer.integer >= 10)
1601 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1606 SZ_Clear(&net_message);
1607 // we may not have liked the packet, but it was a valid control
1608 // packet, so we're done processing this packet now
1612 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1613 CL_ParseServerMessage();
1617 void NetConn_QueryQueueFrame(void)
1623 static double querycounter = 0;
1625 if (serverlist_querysleep)
1628 // apply a cool down time after master server replies,
1629 // to avoid messing up the ping times on the servers
1630 if (serverlist_querywaittime > realtime)
1633 // each time querycounter reaches 1.0 issue a query
1634 querycounter += cl.realframetime * net_slist_queriespersecond.value;
1635 maxqueries = (int)querycounter;
1636 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1637 querycounter -= maxqueries;
1639 if( maxqueries == 0 ) {
1643 // scan serverlist and issue queries as needed
1644 serverlist_querysleep = true;
1646 timeouttime = realtime - net_slist_timeout.value;
1647 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1649 serverlist_entry_t *entry = &serverlist_cache[ index ];
1650 if( entry->query != SQS_QUERYING )
1655 serverlist_querysleep = false;
1656 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1661 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1663 lhnetaddress_t address;
1666 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1667 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1669 for (socket = 0; socket < cl_numsockets ; socket++)
1670 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1674 for (socket = 0; socket < cl_numsockets ; socket++)
1675 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1678 entry->querytime = realtime;
1679 entry->querycounter++;
1681 // if not in the slist menu we should print the server to console
1682 if (serverlist_consoleoutput)
1683 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1689 entry->query = SQS_TIMEDOUT;
1694 void NetConn_ClientFrame(void)
1697 lhnetaddress_t peeraddress;
1698 NetConn_UpdateSockets();
1699 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1701 if (cls.connect_remainingtries == 0)
1702 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1703 cls.connect_nextsendtime = realtime + 1;
1704 cls.connect_remainingtries--;
1705 if (cls.connect_remainingtries <= -10)
1707 cls.connect_trying = false;
1708 M_Update_Return_Reason("Connect: Failed");
1711 // try challenge first (newer DP server or QW)
1712 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1713 // then try netquake as a fallback (old server, or netquake)
1714 SZ_Clear(&net_message);
1715 // save space for the header, filled in later
1716 MSG_WriteLong(&net_message, 0);
1717 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1718 MSG_WriteString(&net_message, "QUAKE");
1719 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1720 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1721 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1722 SZ_Clear(&net_message);
1724 for (i = 0;i < cl_numsockets;i++)
1725 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1726 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1727 NetConn_QueryQueueFrame();
1728 if (cls.netcon && realtime > cls.netcon->timeout)
1730 Con_Print("Connection timed out\n");
1732 Host_ShutdownServer ();
1736 #define MAX_CHALLENGES 128
1739 lhnetaddress_t address;
1743 challenge[MAX_CHALLENGES];
1745 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1749 for (i = 0;i < bufferlength - 1;i++)
1753 c = rand () % (127 - 33) + 33;
1754 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1760 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1762 unsigned int nb_clients = 0, nb_bots = 0, i;
1765 // How many clients are there?
1766 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1768 if (svs.clients[i].active)
1771 if (!svs.clients[i].netconnection)
1776 // TODO: we should add more information for the full status string
1777 length = dpsnprintf(out_msg, out_size,
1778 "\377\377\377\377%s\x0A"
1779 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
1780 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
1783 fullstatus ? "statusResponse" : "infoResponse",
1784 gamename, com_modname, gameversion.integer, svs.maxclients,
1785 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1786 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1787 fullstatus ? "\n" : "");
1789 // Make sure it fits in the buffer
1798 ptr = out_msg + length;
1799 left = (int)out_size - length;
1801 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1803 client_t *cl = &svs.clients[i];
1806 int nameind, cleanind, pingvalue;
1808 char cleanname [sizeof(cl->name)];
1810 // Remove all characters '"' and '\' in the player name
1815 curchar = cl->name[nameind++];
1816 if (curchar != '"' && curchar != '\\')
1818 cleanname[cleanind++] = curchar;
1819 if (cleanind == sizeof(cleanname) - 1)
1822 } while (curchar != '\0');
1824 pingvalue = (int)(cl->ping * 1000.0f);
1825 if(cl->netconnection)
1826 pingvalue = bound(1, pingvalue, 9999);
1829 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1844 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
1846 int floodslotnum, bestfloodslotnum;
1847 double bestfloodtime;
1848 lhnetaddress_t noportpeeraddress;
1849 // see if this is a connect flood
1850 noportpeeraddress = *peeraddress;
1851 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1852 bestfloodslotnum = 0;
1853 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
1854 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1856 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
1858 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
1859 bestfloodslotnum = floodslotnum;
1861 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1863 // this address matches an ongoing flood address
1864 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
1866 // renew the ban on this address so it does not expire
1867 // until the flood has subsided
1868 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
1869 //Con_Printf("Flood detected!\n");
1872 // the flood appears to have subsided, so allow this
1873 bestfloodslotnum = floodslotnum; // reuse the same slot
1877 // begin a new timeout on this address
1878 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
1879 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
1880 //Con_Printf("Flood detection initiated!\n");
1884 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
1887 lhnetaddress_t noportpeeraddress;
1888 // see if this is a connect flood
1889 noportpeeraddress = *peeraddress;
1890 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1891 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1893 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1895 // this address matches an ongoing flood address
1897 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
1898 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
1899 //Con_Printf("Flood cleared!\n");
1904 extern void SV_SendServerinfo (client_t *client);
1905 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1907 int i, ret, clientnum, best;
1910 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
1911 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
1916 // convert the address to a string incase we need it
1917 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1919 // see if we can identify the sender as a local player
1920 // (this is necessary for rcon to send a reliable reply if the client is
1921 // actually on the server, not sending remotely)
1922 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1923 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
1925 if (i == svs.maxclients)
1928 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1930 // received a command string - strip off the packaging and put it
1931 // into our string buffer with NULL termination
1934 length = min(length, (int)sizeof(stringbuf) - 1);
1935 memcpy(stringbuf, data, length);
1936 stringbuf[length] = 0;
1939 if (developer.integer >= 10)
1941 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
1942 Com_HexDumpToConsole(data, length);
1945 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
1947 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
1949 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
1951 if (besttime > challenge[i].time)
1952 besttime = challenge[best = i].time;
1954 // if we did not find an exact match, choose the oldest and
1955 // update address and string
1956 if (i == MAX_CHALLENGES)
1959 challenge[i].address = *peeraddress;
1960 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
1962 challenge[i].time = realtime;
1963 // send the challenge
1964 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
1967 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
1972 if (!(s = SearchInfostring(string, "challenge")))
1974 // validate the challenge
1975 for (i = 0;i < MAX_CHALLENGES;i++)
1976 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
1978 // if the challenge is not recognized, drop the packet
1979 if (i == MAX_CHALLENGES)
1982 // check engine protocol
1983 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
1985 if (developer.integer >= 10)
1986 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
1987 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
1991 // see if this is a duplicate connection request or a disconnected
1992 // client who is rejoining to the same client slot
1993 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
1995 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
1997 // this is a known client...
1998 if (client->spawned)
2000 // client crashed and is coming back,
2001 // keep their stuff intact
2002 if (developer.integer >= 10)
2003 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2004 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2006 SV_SendServerinfo(client);
2011 // client is still trying to connect,
2012 // so we send a duplicate reply
2013 if (developer.integer >= 10)
2014 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2015 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2021 if (NetConn_PreventConnectFlood(peeraddress))
2024 // find an empty client slot for this new client
2025 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2028 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2030 // allocated connection
2031 if (developer.integer >= 10)
2032 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2033 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2034 // now set up the client
2036 SV_ConnectClient(clientnum, conn);
2038 NetConn_Heartbeat(1);
2043 // no empty slots found - server is full
2044 if (developer.integer >= 10)
2045 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2046 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2050 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2052 const char *challenge = NULL;
2054 // If there was a challenge in the getinfo message
2055 if (length > 8 && string[7] == ' ')
2056 challenge = string + 8;
2058 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2060 if (developer.integer >= 10)
2061 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
2062 NetConn_WriteString(mysocket, response, peeraddress);
2066 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2068 const char *challenge = NULL;
2070 // If there was a challenge in the getinfo message
2071 if (length > 10 && string[9] == ' ')
2072 challenge = string + 10;
2074 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2076 if (developer.integer >= 10)
2077 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
2078 NetConn_WriteString(mysocket, response, peeraddress);
2082 if (length >= 5 && !memcmp(string, "rcon ", 5))
2085 char *s = string + 5;
2087 for (i = 0;*s > ' ';s++)
2088 if (i < (int)sizeof(password) - 1)
2091 if (password[0] > ' ' && !strcmp(rcon_password.string, password))
2093 // looks like a legitimate rcon command with the correct password
2094 Con_Printf("server received rcon command from %s:\n%s\n", host_client ? host_client->name : addressstring2, s);
2095 rcon_redirect = true;
2096 rcon_redirect_bufferpos = 0;
2097 Cmd_ExecuteString(s, src_command);
2098 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
2099 rcon_redirect = false;
2100 // print resulting text to client
2101 // if client is playing, send a reliable reply instead of
2105 // if the netconnection is loop, then this is the
2106 // local player on a listen mode server, and it would
2107 // result in duplicate printing to the console
2108 // (not that the local player should be using rcon
2109 // when they have the console)
2110 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2111 SV_ClientPrintf("%s", rcon_redirect_buffer);
2116 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
2117 NetConn_WriteString(mysocket, response, peeraddress);
2122 if (!strncmp(string, "ping", 4))
2124 if (developer.integer >= 10)
2125 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
2126 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2129 if (!strncmp(string, "ack", 3))
2131 // we may not have liked the packet, but it was a command packet, so
2132 // we're done processing this packet now
2135 // netquake control packets, supported for compatibility only, and only
2136 // when running game protocols that are normally served via this connection
2138 // (this protects more modern protocols against being used for
2139 // Quake packet flood Denial Of Service attacks)
2140 if (length >= 5 && (i = BigLong(*((int *)data))) && (i & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (i & NETFLAG_LENGTH_MASK) == length && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3))
2144 const char *protocolname;
2147 SZ_Clear(&net_message);
2148 SZ_Write(&net_message, data, length);
2154 if (developer.integer >= 10)
2155 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2156 if(!islocal && sv_public.integer <= -2)
2159 protocolname = MSG_ReadString();
2160 protocolnumber = MSG_ReadByte();
2161 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2163 if (developer.integer >= 10)
2164 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2165 SZ_Clear(&net_message);
2166 // save space for the header, filled in later
2167 MSG_WriteLong(&net_message, 0);
2168 MSG_WriteByte(&net_message, CCREP_REJECT);
2169 MSG_WriteString(&net_message, "Incompatible version.\n");
2170 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2171 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2172 SZ_Clear(&net_message);
2176 // see if this connect request comes from a known client
2177 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2179 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2181 // this is either a duplicate connection request
2182 // or coming back from a timeout
2183 // (if so, keep their stuff intact)
2186 if (developer.integer >= 10)
2187 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2188 SZ_Clear(&net_message);
2189 // save space for the header, filled in later
2190 MSG_WriteLong(&net_message, 0);
2191 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2192 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2193 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2194 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2195 SZ_Clear(&net_message);
2197 // if client is already spawned, re-send the
2198 // serverinfo message as they'll need it to play
2199 if (client->spawned)
2202 SV_SendServerinfo(client);
2209 // this is a new client, check for connection flood
2210 if (NetConn_PreventConnectFlood(peeraddress))
2213 // find a slot for the new client
2214 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2217 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2219 // connect to the client
2220 // everything is allocated, just fill in the details
2221 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2222 if (developer.integer >= 10)
2223 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2224 // send back the info about the server connection
2225 SZ_Clear(&net_message);
2226 // save space for the header, filled in later
2227 MSG_WriteLong(&net_message, 0);
2228 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2229 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2230 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2231 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2232 SZ_Clear(&net_message);
2233 // now set up the client struct
2235 SV_ConnectClient(clientnum, conn);
2237 NetConn_Heartbeat(1);
2242 if (developer.integer >= 10)
2243 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2244 // no room; try to let player know
2245 SZ_Clear(&net_message);
2246 // save space for the header, filled in later
2247 MSG_WriteLong(&net_message, 0);
2248 MSG_WriteByte(&net_message, CCREP_REJECT);
2249 MSG_WriteString(&net_message, "Server is full.\n");
2250 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2251 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2252 SZ_Clear(&net_message);
2254 case CCREQ_SERVER_INFO:
2255 if (developer.integer >= 10)
2256 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2257 if(!islocal && sv_public.integer <= -1)
2259 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2262 char myaddressstring[128];
2263 if (developer.integer >= 10)
2264 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2265 SZ_Clear(&net_message);
2266 // save space for the header, filled in later
2267 MSG_WriteLong(&net_message, 0);
2268 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2269 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2270 MSG_WriteString(&net_message, myaddressstring);
2271 MSG_WriteString(&net_message, hostname.string);
2272 MSG_WriteString(&net_message, sv.name);
2273 // How many clients are there?
2274 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2275 if (svs.clients[i].active)
2277 MSG_WriteByte(&net_message, numclients);
2278 MSG_WriteByte(&net_message, svs.maxclients);
2279 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2280 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2281 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2282 SZ_Clear(&net_message);
2285 case CCREQ_PLAYER_INFO:
2286 if (developer.integer >= 10)
2287 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2288 if(!islocal && sv_public.integer <= -1)
2292 int playerNumber, activeNumber, clientNumber;
2295 playerNumber = MSG_ReadByte();
2297 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2298 if (client->active && ++activeNumber == playerNumber)
2300 if (clientNumber != svs.maxclients)
2302 SZ_Clear(&net_message);
2303 // save space for the header, filled in later
2304 MSG_WriteLong(&net_message, 0);
2305 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2306 MSG_WriteByte(&net_message, playerNumber);
2307 MSG_WriteString(&net_message, client->name);
2308 MSG_WriteLong(&net_message, client->colors);
2309 MSG_WriteLong(&net_message, client->frags);
2310 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2311 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2312 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2313 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2314 SZ_Clear(&net_message);
2318 case CCREQ_RULE_INFO:
2319 if (developer.integer >= 10)
2320 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2321 if(!islocal && sv_public.integer <= -1)
2328 // find the search start location
2329 prevCvarName = MSG_ReadString();
2330 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2332 // send the response
2333 SZ_Clear(&net_message);
2334 // save space for the header, filled in later
2335 MSG_WriteLong(&net_message, 0);
2336 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2339 MSG_WriteString(&net_message, var->name);
2340 MSG_WriteString(&net_message, var->string);
2342 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2343 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2344 SZ_Clear(&net_message);
2350 SZ_Clear(&net_message);
2351 // we may not have liked the packet, but it was a valid control
2352 // packet, so we're done processing this packet now
2357 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
2360 SV_ReadClientMessage();
2368 void NetConn_ServerFrame(void)
2371 lhnetaddress_t peeraddress;
2372 for (i = 0;i < sv_numsockets;i++)
2373 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2374 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2375 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2377 // never timeout loopback connections
2378 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2380 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2382 SV_DropClient(false);
2388 void NetConn_SleepMicroseconds(int microseconds)
2390 LHNET_SleepUntilPacket_Microseconds(microseconds);
2393 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
2397 lhnetaddress_t masteraddress;
2398 lhnetaddress_t broadcastaddress;
2401 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2404 // 26000 is the default quake server port, servers on other ports will not
2406 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2407 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2411 for (i = 0;i < cl_numsockets;i++)
2415 // search LAN for Quake servers
2416 SZ_Clear(&net_message);
2417 // save space for the header, filled in later
2418 MSG_WriteLong(&net_message, 0);
2419 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2420 MSG_WriteString(&net_message, "QUAKE");
2421 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2422 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2423 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2424 SZ_Clear(&net_message);
2426 // search LAN for DarkPlaces servers
2427 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2429 // build the getservers message to send to the dpmaster master servers
2430 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2433 for (masternum = 0;sv_masters[masternum].name;masternum++)
2435 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2438 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2445 // only query QuakeWorld servers when the user wants to
2448 for (i = 0;i < cl_numsockets;i++)
2452 // search LAN for QuakeWorld servers
2453 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
2455 // build the getservers message to send to the qwmaster master servers
2456 // note this has no -1 prefix, and the trailing nul byte is sent
2457 dpsnprintf(request, sizeof(request), "c\n");
2460 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2462 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2464 if (m_state != m_slist)
2466 char lookupstring[128];
2467 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
2468 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
2471 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
2477 if (!masterquerycount)
2479 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2480 M_Update_Return_Reason("No network");
2484 void NetConn_Heartbeat(int priority)
2486 lhnetaddress_t masteraddress;
2488 lhnetsocket_t *mysocket;
2490 // if it's a state change (client connected), limit next heartbeat to no
2491 // more than 30 sec in the future
2492 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2493 nextheartbeattime = realtime + 30.0;
2495 // limit heartbeatperiod to 30 to 270 second range,
2496 // lower limit is to avoid abusing master servers with excess traffic,
2497 // upper limit is to avoid timing out on the master server (which uses
2499 if (sv_heartbeatperiod.value < 30)
2500 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2501 if (sv_heartbeatperiod.value > 270)
2502 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2504 // make advertising optional and don't advertise singleplayer games, and
2505 // only send a heartbeat as often as the admin wants
2506 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2508 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2509 for (masternum = 0;sv_masters[masternum].name;masternum++)
2510 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2511 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2515 static void Net_Heartbeat_f(void)
2518 NetConn_Heartbeat(2);
2520 Con_Print("No server running, can not heartbeat to master server.\n");
2523 void PrintStats(netconn_t *conn)
2525 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2526 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2528 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2531 void Net_Stats_f(void)
2534 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2535 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2536 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2537 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2538 Con_Printf("packetsSent = %i\n", packetsSent);
2539 Con_Printf("packetsReSent = %i\n", packetsReSent);
2540 Con_Printf("packetsReceived = %i\n", packetsReceived);
2541 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2542 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2543 Con_Print("connections =\n");
2544 for (conn = netconn_list;conn;conn = conn->next)
2548 void Net_Slist_f(void)
2550 ServerList_ResetMasks();
2551 serverlist_sortbyfield = SLIF_PING;
2552 serverlist_sortdescending = false;
2553 if (m_state != m_slist) {
2554 Con_Print("Sending requests to master servers\n");
2555 ServerList_QueryList(true, false);
2556 serverlist_consoleoutput = true;
2557 Con_Print("Listening for replies...\n");
2559 ServerList_QueryList(true, false);
2562 void Net_SlistQW_f(void)
2564 ServerList_ResetMasks();
2565 serverlist_sortbyfield = SLIF_PING;
2566 serverlist_sortdescending = false;
2567 if (m_state != m_slist) {
2568 Con_Print("Sending requests to master servers\n");
2569 ServerList_QueryList(false, true);
2570 serverlist_consoleoutput = true;
2571 Con_Print("Listening for replies...\n");
2573 ServerList_QueryList(false, true);
2576 void NetConn_Init(void)
2579 lhnetaddress_t tempaddress;
2580 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2581 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2582 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
2583 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
2584 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2585 Cvar_RegisterVariable(&net_slist_queriespersecond);
2586 Cvar_RegisterVariable(&net_slist_queriesperframe);
2587 Cvar_RegisterVariable(&net_slist_timeout);
2588 Cvar_RegisterVariable(&net_slist_maxtries);
2589 Cvar_RegisterVariable(&net_messagetimeout);
2590 Cvar_RegisterVariable(&net_connecttimeout);
2591 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
2592 Cvar_RegisterVariable(&cl_netlocalping);
2593 Cvar_RegisterVariable(&cl_netpacketloss);
2594 Cvar_RegisterVariable(&hostname);
2595 Cvar_RegisterVariable(&developer_networking);
2596 Cvar_RegisterVariable(&cl_netport);
2597 Cvar_RegisterVariable(&sv_netport);
2598 Cvar_RegisterVariable(&net_address);
2599 //Cvar_RegisterVariable(&net_address_ipv6);
2600 Cvar_RegisterVariable(&sv_public);
2601 Cvar_RegisterVariable(&sv_heartbeatperiod);
2602 for (i = 0;sv_masters[i].name;i++)
2603 Cvar_RegisterVariable(&sv_masters[i]);
2604 Cvar_RegisterVariable(&gameversion);
2605 // 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.
2606 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2608 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2610 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
2611 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2614 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2616 // 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
2617 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2619 i = atoi(com_argv[i + 1]);
2620 if (i >= 0 && i < 65536)
2622 Con_Printf("-port option used, setting port cvar to %i\n", i);
2623 Cvar_SetValueQuick(&sv_netport, i);
2626 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2630 net_message.data = net_message_buf;
2631 net_message.maxsize = sizeof(net_message_buf);
2632 net_message.cursize = 0;
2636 void NetConn_Shutdown(void)
2638 NetConn_CloseClientPorts();
2639 NetConn_CloseServerPorts();