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_send = {0, "cl_netpacketloss_send","0", "drops this percentage of outgoing packets, useful for testing network protocol robustness (jerky movement, prediction errors, etc)"};
80 static cvar_t cl_netpacketloss_receive = {0, "cl_netpacketloss_receive","0", "drops this percentage of incoming packets, useful for testing network protocol robustness (jerky movement, effects failing to start, sounds failing to play, etc)"};
81 static cvar_t net_slist_queriespersecond = {0, "net_slist_queriespersecond", "20", "how many server information requests to send per second"};
82 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)"};
83 static cvar_t net_slist_timeout = {0, "net_slist_timeout", "4", "how long to listen for a server information response before giving up"};
84 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)"};
86 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"};
88 /* statistic counters */
89 static int packetsSent = 0;
90 static int packetsReSent = 0;
91 static int packetsReceived = 0;
92 static int receivedDuplicateCount = 0;
93 static int droppedDatagrams = 0;
95 static int unreliableMessagesSent = 0;
96 static int unreliableMessagesReceived = 0;
97 static int reliableMessagesSent = 0;
98 static int reliableMessagesReceived = 0;
100 double masterquerytime = -1000;
101 int masterquerycount = 0;
102 int masterreplycount = 0;
103 int serverquerycount = 0;
104 int serverreplycount = 0;
106 // this is only false if there are still servers left to query
107 static qboolean serverlist_querysleep = true;
108 // this is pushed a second or two ahead of realtime whenever a master server
109 // reply is received, to avoid issuing queries while master replies are still
110 // flooding in (which would make a mess of the ping times)
111 static double serverlist_querywaittime = 0;
113 static unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
114 static unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
116 static int cl_numsockets;
117 static lhnetsocket_t *cl_sockets[16];
118 static int sv_numsockets;
119 static lhnetsocket_t *sv_sockets[16];
121 netconn_t *netconn_list = NULL;
122 mempool_t *netconn_mempool = NULL;
124 cvar_t cl_netport = {0, "cl_port", "0", "forces client to use chosen port number if not 0"};
125 cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to"};
126 cvar_t net_address = {0, "net_address", "0.0.0.0", "network address to open ports on"};
127 //cvar_t net_netaddress_ipv6 = {0, "net_address_ipv6", "[0:0:0:0:0:0:0:0]", "network address to open ipv6 ports on"};
129 char net_extresponse[NET_EXTRESPONSE_MAX][1400];
130 int net_extresponse_count = 0;
131 int net_extresponse_last = 0;
133 // ServerList interface
134 serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT];
135 serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT];
137 serverlist_infofield_t serverlist_sortbyfield;
138 qboolean serverlist_sortdescending;
140 int serverlist_viewcount = 0;
141 serverlist_entry_t *serverlist_viewlist[SERVERLIST_VIEWLISTSIZE];
143 int serverlist_cachecount;
144 serverlist_entry_t serverlist_cache[SERVERLIST_TOTALSIZE];
146 qboolean serverlist_consoleoutput;
148 // helper function to insert a value into the viewset
149 // spare entries will be removed
150 static void _ServerList_ViewList_Helper_InsertBefore( int index, serverlist_entry_t *entry )
153 if( serverlist_viewcount < SERVERLIST_VIEWLISTSIZE ) {
154 i = serverlist_viewcount++;
156 i = SERVERLIST_VIEWLISTSIZE - 1;
159 for( ; i > index ; i-- )
160 serverlist_viewlist[ i ] = serverlist_viewlist[ i - 1 ];
162 serverlist_viewlist[index] = entry;
165 // we suppose serverlist_viewcount to be valid, ie > 0
166 static void _ServerList_ViewList_Helper_Remove( int index )
168 serverlist_viewcount--;
169 for( ; index < serverlist_viewcount ; index++ )
170 serverlist_viewlist[index] = serverlist_viewlist[index + 1];
173 // returns true if A should be inserted before B
174 static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_entry_t *B )
176 int result = 0; // > 0 if for numbers A > B and for text if A < B
178 switch( serverlist_sortbyfield ) {
180 result = A->info.ping - B->info.ping;
182 case SLIF_MAXPLAYERS:
183 result = A->info.maxplayers - B->info.maxplayers;
185 case SLIF_NUMPLAYERS:
186 result = A->info.numplayers - B->info.numplayers;
189 result = A->info.numbots - B->info.numbots;
192 result = A->info.numhumans - B->info.numhumans;
195 result = A->info.protocol - B->info.protocol;
198 result = strcmp( B->info.cname, A->info.cname );
201 result = strcmp( B->info.game, A->info.game );
204 result = strcmp( B->info.map, A->info.map );
207 result = strcmp( B->info.mod, A->info.mod );
210 result = strcmp( B->info.name, A->info.name );
213 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
217 if( serverlist_sortdescending )
221 // if the chosen sort key is identical, sort by index
222 // (makes this a stable sort, so that later replies from servers won't
223 // shuffle the servers around when they have the same ping)
227 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
229 // This should actually be done with some intermediate and end-of-function return
241 case SLMO_GREATEREQUAL:
243 case SLMO_NOTCONTAIN:
246 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
251 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
254 char bufferA[ 256 ], bufferB[ 256 ]; // should be more than enough
255 for (i = 0;i < (int)sizeof(bufferA)-1 && A[i];i++)
256 bufferA[i] = (A[i] >= 'A' && A[i] <= 'Z') ? (A[i] + 'a' - 'A') : A[i];
258 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
259 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
262 // Same here, also using an intermediate & final return would be more appropriate
266 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
267 case SLMO_NOTCONTAIN:
268 return !*bufferB || !strstr( bufferA, bufferB );
270 return strcmp( bufferA, bufferB ) < 0;
272 return strcmp( bufferA, bufferB ) <= 0;
274 return strcmp( bufferA, bufferB ) == 0;
276 return strcmp( bufferA, bufferB ) > 0;
278 return strcmp( bufferA, bufferB ) != 0;
279 case SLMO_GREATEREQUAL:
280 return strcmp( bufferA, bufferB ) >= 0;
282 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
287 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
289 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
291 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
293 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
295 if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) )
297 if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) )
299 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
301 if( *mask->info.cname
302 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
305 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
308 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
311 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
314 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
319 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
323 // reject incompatible servers
324 if (entry->info.gameversion != gameversion.integer)
327 // FIXME: change this to be more readable (...)
328 // now check whether it passes through the masks
329 for( start = 0 ; serverlist_andmasks[start].active && start < SERVERLIST_ANDMASKCOUNT ; start++ )
330 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
333 for( start = 0 ; serverlist_ormasks[start].active && start < SERVERLIST_ORMASKCOUNT ; start++ )
334 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
336 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
339 if( !serverlist_viewcount ) {
340 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
343 // ok, insert it, we just need to find out where exactly:
346 // check whether to insert it as new first item
347 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
348 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
350 } // check whether to insert it as new last item
351 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
352 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
356 end = serverlist_viewcount - 1;
357 while( end > start + 1 )
359 mid = (start + end) / 2;
360 // test the item that lies in the middle between start and end
361 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
362 // the item has to be in the upper half
365 // the item has to be in the lower half
368 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
371 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
374 for( i = 0; i < serverlist_viewcount; i++ )
376 if (serverlist_viewlist[i] == entry)
378 _ServerList_ViewList_Helper_Remove(i);
384 void ServerList_RebuildViewList(void)
388 serverlist_viewcount = 0;
389 for( i = 0 ; i < serverlist_cachecount ; i++ )
390 if( serverlist_cache[i].query == SQS_QUERIED )
391 ServerList_ViewList_Insert( &serverlist_cache[i] );
394 void ServerList_ResetMasks(void)
398 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
399 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
400 // numbots needs to be compared to -1 to always succeed
401 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
402 serverlist_andmasks[i].info.numbots = -1;
403 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
404 serverlist_ormasks[i].info.numbots = -1;
408 static void _ServerList_Test(void)
411 for( i = 0 ; i < 1024 ; i++ ) {
412 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
413 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
414 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
415 serverlist_cache[serverlist_cachecount].finished = true;
416 sprintf( serverlist_cache[serverlist_cachecount].line1, "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
417 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
418 serverlist_cachecount++;
423 void ServerList_QueryList(qboolean querydp, qboolean queryqw)
425 masterquerytime = realtime;
426 masterquerycount = 0;
427 masterreplycount = 0;
428 serverquerycount = 0;
429 serverreplycount = 0;
430 serverlist_cachecount = 0;
431 serverlist_viewcount = 0;
432 serverlist_consoleoutput = false;
434 //_ServerList_Test();
436 NetConn_QueryMasters(querydp, queryqw);
441 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
443 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
447 if (cl_netpacketloss_receive.integer)
448 for (i = 0;i < cl_numsockets;i++)
449 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer)
451 if (developer_networking.integer)
453 char addressstring[128], addressstring2[128];
454 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
457 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
458 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", mysocket, addressstring, data, maxlength, peeraddress, length, addressstring2);
459 Com_HexDumpToConsole((unsigned char *)data, length);
462 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", mysocket, addressstring, data, maxlength, peeraddress, length);
467 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
471 if (cl_netpacketloss_send.integer)
472 for (i = 0;i < cl_numsockets;i++)
473 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer)
475 ret = LHNET_Write(mysocket, data, length, peeraddress);
476 if (developer_networking.integer)
478 char addressstring[128], addressstring2[128];
479 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
480 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
481 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", mysocket, addressstring, data, length, peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
482 Com_HexDumpToConsole((unsigned char *)data, length);
487 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
489 // note this does not include the trailing NULL because we add that in the parser
490 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
493 qboolean NetConn_CanSend(netconn_t *conn)
495 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
496 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
497 conn->outgoing_reliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
498 conn->outgoing_acksize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
499 if (realtime > conn->cleartime)
503 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_CHOKEDPACKET;
508 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate)
512 // if this packet was supposedly choked, but we find ourselves sending one
513 // anyway, make sure the size counting starts at zero
514 // (this mostly happens on level changes and disconnects and such)
515 if (conn->outgoing_unreliablesize[conn->outgoing_packetcounter] == NETGRAPH_CHOKEDPACKET)
516 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
518 if (protocol == PROTOCOL_QUAKEWORLD)
521 qboolean sendreliable;
523 // note that it is ok to send empty messages to the qw server,
524 // otherwise it won't respond to us at all
526 sendreliable = false;
527 // if the remote side dropped the last reliable message, resend it
528 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
530 // if the reliable transmit buffer is empty, copy the current message out
531 if (!conn->sendMessageLength && conn->message.cursize)
533 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
534 conn->sendMessageLength = conn->message.cursize;
535 SZ_Clear(&conn->message); // clear the message buffer
536 conn->qw.reliable_sequence ^= 1;
539 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
540 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->qw.outgoing_sequence | ((unsigned int)sendreliable<<31));
541 // last received unreliable packet number, and last received reliable packet number (0 or 1)
542 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
544 conn->qw.outgoing_sequence++;
545 // client sends qport in every packet
546 if (conn == cls.netcon)
548 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
550 // also update cls.qw_outgoing_sequence
551 cls.qw_outgoing_sequence = conn->qw.outgoing_sequence;
553 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
555 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
559 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
561 // add the reliable message if there is one
564 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += conn->sendMessageLength;
565 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
566 packetLen += conn->sendMessageLength;
567 conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence;
570 // add the unreliable message if possible
571 if (packetLen + data->cursize <= 1400)
573 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += data->cursize;
574 memcpy(sendbuffer + packetLen, data->data, data->cursize);
575 packetLen += data->cursize;
578 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
581 unreliableMessagesSent++;
583 totallen += packetLen + 28;
587 unsigned int packetLen;
588 unsigned int dataLen;
590 unsigned int *header;
592 // if a reliable message fragment has been lost, send it again
593 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
595 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
597 dataLen = conn->sendMessageLength;
602 dataLen = MAX_PACKETFRAGMENT;
606 packetLen = NET_HEADERSIZE + dataLen;
608 header = (unsigned int *)sendbuffer;
609 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
610 header[1] = BigLong(conn->nq.sendSequence - 1);
611 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
613 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
615 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
617 conn->lastSendTime = realtime;
621 totallen += packetLen + 28;
624 // if we have a new reliable message to send, do so
625 if (!conn->sendMessageLength && conn->message.cursize)
627 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
629 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
630 conn->message.overflowed = true;
634 if (developer_networking.integer && conn == cls.netcon)
636 Con_Print("client sending reliable message to server:\n");
637 SZ_HexDumpToConsole(&conn->message);
640 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
641 conn->sendMessageLength = conn->message.cursize;
642 SZ_Clear(&conn->message);
644 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
646 dataLen = conn->sendMessageLength;
651 dataLen = MAX_PACKETFRAGMENT;
655 packetLen = NET_HEADERSIZE + dataLen;
657 header = (unsigned int *)sendbuffer;
658 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
659 header[1] = BigLong(conn->nq.sendSequence);
660 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
662 conn->nq.sendSequence++;
664 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
666 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
668 conn->lastSendTime = realtime;
670 reliableMessagesSent++;
672 totallen += packetLen + 28;
675 // if we have an unreliable message to send, do so
678 packetLen = NET_HEADERSIZE + data->cursize;
680 if (packetLen > (int)sizeof(sendbuffer))
682 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
686 header = (unsigned int *)sendbuffer;
687 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
688 header[1] = BigLong(conn->nq.unreliableSendSequence);
689 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
691 conn->nq.unreliableSendSequence++;
693 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
695 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
698 unreliableMessagesSent++;
700 totallen += packetLen + 28;
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 if (protocol == PROTOCOL_QUAKEWORLD)
923 int sequence, sequence_ack;
924 int reliable_ack, reliable_message;
928 sequence = LittleLong(*((int *)(data + 0)));
929 sequence_ack = LittleLong(*((int *)(data + 4)));
933 if (conn != cls.netcon)
938 // 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?)
939 qport = LittleShort(*((int *)(data + 8)));
945 reliable_message = (sequence >> 31) & 1;
946 reliable_ack = (sequence_ack >> 31) & 1;
947 sequence &= ~(1<<31);
948 sequence_ack &= ~(1<<31);
949 if (sequence <= conn->qw.incoming_sequence)
951 //Con_DPrint("Got a stale datagram\n");
954 count = sequence - (conn->qw.incoming_sequence + 1);
957 droppedDatagrams += count;
958 //Con_DPrintf("Dropped %u datagram(s)\n", count);
961 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
962 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
963 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
964 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
967 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
968 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
969 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
970 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
971 if (reliable_ack == conn->qw.reliable_sequence)
973 // received, now we will be able to send another reliable message
974 conn->sendMessageLength = 0;
975 reliableMessagesReceived++;
977 conn->qw.incoming_sequence = sequence;
978 if (conn == cls.netcon)
979 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
980 conn->qw.incoming_acknowledged = sequence_ack;
981 conn->qw.incoming_reliable_acknowledged = reliable_ack;
982 if (reliable_message)
983 conn->qw.incoming_reliable_sequence ^= 1;
984 conn->lastMessageTime = realtime;
985 conn->timeout = realtime + newtimeout;
986 unreliableMessagesReceived++;
987 SZ_Clear(&net_message);
988 SZ_Write(&net_message, data, length);
996 unsigned int sequence;
999 qlength = (unsigned int)BigLong(((int *)data)[0]);
1000 flags = qlength & ~NETFLAG_LENGTH_MASK;
1001 qlength &= NETFLAG_LENGTH_MASK;
1002 // control packets were already handled
1003 if (!(flags & NETFLAG_CTL) && qlength == length)
1005 sequence = BigLong(((int *)data)[1]);
1009 if (flags & NETFLAG_UNRELIABLE)
1011 if (sequence >= conn->nq.unreliableReceiveSequence)
1013 if (sequence > conn->nq.unreliableReceiveSequence)
1015 count = sequence - conn->nq.unreliableReceiveSequence;
1016 droppedDatagrams += count;
1017 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1020 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1021 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1022 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1023 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1026 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1027 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1028 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1029 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1030 conn->nq.unreliableReceiveSequence = sequence + 1;
1031 conn->lastMessageTime = realtime;
1032 conn->timeout = realtime + newtimeout;
1033 unreliableMessagesReceived++;
1036 SZ_Clear(&net_message);
1037 SZ_Write(&net_message, data, length);
1043 // Con_DPrint("Got a stale datagram\n");
1046 else if (flags & NETFLAG_ACK)
1048 conn->incoming_acksize[conn->incoming_packetcounter] += originallength;
1049 if (sequence == (conn->nq.sendSequence - 1))
1051 if (sequence == conn->nq.ackSequence)
1053 conn->nq.ackSequence++;
1054 if (conn->nq.ackSequence != conn->nq.sendSequence)
1055 Con_DPrint("ack sequencing error\n");
1056 conn->lastMessageTime = realtime;
1057 conn->timeout = realtime + newtimeout;
1058 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1060 unsigned int packetLen;
1061 unsigned int dataLen;
1063 unsigned int *header;
1065 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1066 memcpy(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1068 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1070 dataLen = conn->sendMessageLength;
1075 dataLen = MAX_PACKETFRAGMENT;
1079 packetLen = NET_HEADERSIZE + dataLen;
1081 header = (unsigned int *)sendbuffer;
1082 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
1083 header[1] = BigLong(conn->nq.sendSequence);
1084 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1086 conn->nq.sendSequence++;
1088 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1090 conn->lastSendTime = realtime;
1095 conn->sendMessageLength = 0;
1098 // Con_DPrint("Duplicate ACK received\n");
1101 // Con_DPrint("Stale ACK received\n");
1104 else if (flags & NETFLAG_DATA)
1106 unsigned int temppacket[2];
1107 conn->incoming_reliablesize[conn->incoming_packetcounter] += originallength;
1108 conn->outgoing_acksize[conn->outgoing_packetcounter] += 8;
1109 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1110 temppacket[1] = BigLong(sequence);
1111 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1112 if (sequence == conn->nq.receiveSequence)
1114 conn->lastMessageTime = realtime;
1115 conn->timeout = realtime + newtimeout;
1116 conn->nq.receiveSequence++;
1117 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1118 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1119 conn->receiveMessageLength += length;
1121 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1122 "Dropping the message!\n", sequence );
1123 conn->receiveMessageLength = 0;
1126 if (flags & NETFLAG_EOM)
1128 reliableMessagesReceived++;
1129 length = conn->receiveMessageLength;
1130 conn->receiveMessageLength = 0;
1133 SZ_Clear(&net_message);
1134 SZ_Write(&net_message, conn->receiveMessage, length);
1141 receivedDuplicateCount++;
1149 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1151 cls.connect_trying = false;
1152 M_Update_Return_Reason("");
1153 // the connection request succeeded, stop current connection and set up a new connection
1155 // if we're connecting to a remote server, shut down any local server
1156 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1157 Host_ShutdownServer ();
1158 // allocate a net connection to keep track of things
1159 cls.netcon = NetConn_Open(mysocket, peeraddress);
1160 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1161 key_dest = key_game;
1163 cls.demonum = -1; // not in the demo loop now
1164 cls.state = ca_connected;
1165 cls.signon = 0; // need all the signon messages before playing
1166 cls.protocol = initialprotocol;
1167 // reset move sequence numbering on this new connection
1168 cls.movesequence = 1;
1169 cls.servermovesequence = 0;
1170 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1171 Cmd_ForwardStringToServer("new");
1172 if (cls.protocol == PROTOCOL_QUAKE)
1174 // write a keepalive (clc_nop) as it seems to greatly improve the
1175 // chances of connecting to a netquake server
1177 unsigned char buf[4];
1178 memset(&msg, 0, sizeof(msg));
1180 msg.maxsize = sizeof(buf);
1181 MSG_WriteChar(&msg, clc_nop);
1182 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000);
1186 int NetConn_IsLocalGame(void)
1188 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1193 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1197 // search the cache for this server and update it
1198 for (n = 0;n < serverlist_cachecount;n++)
1199 if (!strcmp(addressstring, serverlist_cache[n].info.cname))
1201 if (n == serverlist_cachecount)
1203 // LAN search doesnt require an answer from the master server so we wont
1204 // know the ping nor will it be initialized already...
1207 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1210 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1211 // store the data the engine cares about (address and ping)
1212 strlcpy(serverlist_cache[serverlist_cachecount].info.cname, addressstring, sizeof(serverlist_cache[serverlist_cachecount].info.cname));
1213 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1214 serverlist_cache[serverlist_cachecount].querytime = realtime;
1215 // if not in the slist menu we should print the server to console
1216 if (serverlist_consoleoutput)
1217 Con_Printf("querying %s\n", addressstring);
1218 ++serverlist_cachecount;
1220 // if this is the first reply from this server, count it as having replied
1221 if (serverlist_cache[n].info.ping == 100000)
1223 pingtime = (int)((realtime - serverlist_cache[n].querytime) * 1000.0 + 0.5);
1224 pingtime = bound(0, pingtime, 9999);
1226 serverlist_cache[n].info.ping = min(serverlist_cache[n].info.ping, pingtime);
1227 // other server info is updated by the caller
1231 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1233 serverlist_info_t *info = &serverlist_cache[n].info;
1234 // update description strings for engine menu and console output
1235 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);
1236 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);
1237 if (serverlist_cache[n].query == SQS_QUERIED)
1238 ServerList_ViewList_Remove(&serverlist_cache[n]);
1239 // if not in the slist menu we should print the server to console (if wanted)
1240 else if( serverlist_consoleoutput )
1241 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1242 // and finally, update the view set
1243 ServerList_ViewList_Insert( &serverlist_cache[n] );
1244 serverlist_cache[n].query = SQS_QUERIED;
1247 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1249 qboolean fromserver;
1250 int ret, c, control;
1252 char *string, addressstring2[128], ipstring[32];
1253 char stringbuf[16384];
1255 // quakeworld ingame packet
1256 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1258 // convert the address to a string incase we need it
1259 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1261 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1263 // received a command string - strip off the packaging and put it
1264 // into our string buffer with NULL termination
1267 length = min(length, (int)sizeof(stringbuf) - 1);
1268 memcpy(stringbuf, data, length);
1269 stringbuf[length] = 0;
1272 if (developer_networking.integer)
1274 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1275 Com_HexDumpToConsole(data, length);
1278 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1280 // darkplaces or quake3
1281 char protocolnames[1400];
1282 Protocol_Names(protocolnames, sizeof(protocolnames));
1283 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1284 M_Update_Return_Reason("Got challenge response");
1285 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1286 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1287 // TODO: add userinfo stuff here instead of using NQ commands?
1288 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1291 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1293 // darkplaces or quake3
1294 M_Update_Return_Reason("Accepted");
1295 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1298 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1300 char rejectreason[32];
1301 cls.connect_trying = false;
1303 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1304 memcpy(rejectreason, string, length);
1305 rejectreason[length] = 0;
1306 M_Update_Return_Reason(rejectreason);
1309 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1311 serverlist_info_t *info;
1315 // search the cache for this server and update it
1316 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1320 info = &serverlist_cache[n].info;
1325 info->protocol = -1;
1326 info->numplayers = 0;
1328 info->maxplayers = 0;
1329 info->gameversion = 0;
1330 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1331 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1332 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1333 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1334 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1335 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1336 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1337 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1338 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1339 info->numhumans = info->numplayers - max(0, info->numbots);
1341 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1345 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1347 // Extract the IP addresses
1351 if (serverlist_consoleoutput)
1352 Con_Print("received DarkPlaces server list...\n");
1353 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1357 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1358 if (serverlist_consoleoutput && developer_networking.integer)
1359 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1360 // ignore the rest of the message if the serverlist is full
1361 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1363 // also ignore it if we have already queried it (other master server response)
1364 for( n = 0 ; n < serverlist_cachecount ; n++ )
1365 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1367 if( n >= serverlist_cachecount )
1371 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1372 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_DARKPLACES7;
1373 // store the data the engine cares about (address and ping)
1374 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1375 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1376 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1378 ++serverlist_cachecount;
1381 // move on to next address in packet
1385 // begin or resume serverlist queries
1386 serverlist_querysleep = false;
1387 serverlist_querywaittime = realtime + 3;
1390 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1392 // Extract the IP addresses
1396 if (serverlist_consoleoutput)
1397 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1398 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1402 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1403 if (serverlist_consoleoutput && developer_networking.integer)
1404 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1405 // ignore the rest of the message if the serverlist is full
1406 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1408 // also ignore it if we have already queried it (other master server response)
1409 for( n = 0 ; n < serverlist_cachecount ; n++ )
1410 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1412 if( n >= serverlist_cachecount )
1416 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1417 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_QUAKEWORLD;
1418 // store the data the engine cares about (address and ping)
1419 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1420 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1421 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1423 ++serverlist_cachecount;
1426 // move on to next address in packet
1430 // begin or resume serverlist queries
1431 serverlist_querysleep = false;
1432 serverlist_querywaittime = realtime + 3;
1435 if (!strncmp(string, "extResponse ", 12))
1437 ++net_extresponse_count;
1438 if(net_extresponse_count > NET_EXTRESPONSE_MAX)
1439 net_extresponse_count = NET_EXTRESPONSE_MAX;
1440 net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1441 dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
1444 if (!strncmp(string, "ping", 4))
1446 if (developer.integer >= 10)
1447 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
1448 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1451 if (!strncmp(string, "ack", 3))
1453 // QuakeWorld compatibility
1454 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1456 // challenge message
1457 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1458 M_Update_Return_Reason("Got QuakeWorld challenge response");
1459 cls.qw_qport = qport.integer;
1460 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1461 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1462 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1465 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1468 M_Update_Return_Reason("QuakeWorld Accepted");
1469 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1472 if (length > 2 && !memcmp(string, "n\\", 2))
1474 serverlist_info_t *info;
1478 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1479 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1482 // search the cache for this server and update it
1483 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1487 info = &serverlist_cache[n].info;
1488 strlcpy(info->game, "QuakeWorld", sizeof(info->game));;
1489 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1490 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1491 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1493 info->numplayers = 0; // updated below
1494 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1495 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1497 // count active players on server
1498 // (we could gather more info, but we're just after the number)
1499 s = strchr(string, '\n');
1503 while (s < string + length)
1505 for (;s < string + length && *s != '\n';s++)
1507 if (s >= string + length)
1514 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1518 if (string[0] == 'n')
1521 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1523 // we may not have liked the packet, but it was a command packet, so
1524 // we're done processing this packet now
1527 // quakeworld ingame packet
1528 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1531 CL_ParseServerMessage();
1534 // netquake control packets, supported for compatibility only
1535 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1538 serverlist_info_t *info;
1542 SZ_Clear(&net_message);
1543 SZ_Write(&net_message, data, length);
1549 if (developer.integer >= 10)
1550 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1551 if (cls.connect_trying)
1553 lhnetaddress_t clientportaddress;
1554 clientportaddress = *peeraddress;
1555 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1556 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1557 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1558 M_Update_Return_Reason("Accepted");
1559 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1563 if (developer.integer >= 10)
1564 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1565 cls.connect_trying = false;
1566 M_Update_Return_Reason((char *)MSG_ReadString());
1568 case CCREP_SERVER_INFO:
1569 if (developer.integer >= 10)
1570 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1571 // LordHavoc: because the quake server may report weird addresses
1572 // we just ignore it and keep the real address
1574 // search the cache for this server and update it
1575 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1579 info = &serverlist_cache[n].info;
1580 strlcpy(info->game, "Quake", sizeof(info->game));
1581 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1582 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1583 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1584 info->numplayers = MSG_ReadByte();
1585 info->maxplayers = MSG_ReadByte();
1586 info->protocol = MSG_ReadByte();
1588 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1591 case CCREP_PLAYER_INFO:
1592 // we got a CCREP_PLAYER_INFO??
1593 //if (developer.integer >= 10)
1594 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1596 case CCREP_RULE_INFO:
1597 // we got a CCREP_RULE_INFO??
1598 //if (developer.integer >= 10)
1599 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1604 SZ_Clear(&net_message);
1605 // we may not have liked the packet, but it was a valid control
1606 // packet, so we're done processing this packet now
1610 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1611 CL_ParseServerMessage();
1615 void NetConn_QueryQueueFrame(void)
1621 static double querycounter = 0;
1623 if (serverlist_querysleep)
1626 // apply a cool down time after master server replies,
1627 // to avoid messing up the ping times on the servers
1628 if (serverlist_querywaittime > realtime)
1631 // each time querycounter reaches 1.0 issue a query
1632 querycounter += cl.realframetime * net_slist_queriespersecond.value;
1633 maxqueries = (int)querycounter;
1634 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1635 querycounter -= maxqueries;
1637 if( maxqueries == 0 ) {
1641 // scan serverlist and issue queries as needed
1642 serverlist_querysleep = true;
1644 timeouttime = realtime - net_slist_timeout.value;
1645 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1647 serverlist_entry_t *entry = &serverlist_cache[ index ];
1648 if( entry->query != SQS_QUERYING )
1653 serverlist_querysleep = false;
1654 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1659 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1661 lhnetaddress_t address;
1664 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1665 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1667 for (socket = 0; socket < cl_numsockets ; socket++)
1668 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1672 for (socket = 0; socket < cl_numsockets ; socket++)
1673 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1676 entry->querytime = realtime;
1677 entry->querycounter++;
1679 // if not in the slist menu we should print the server to console
1680 if (serverlist_consoleoutput)
1681 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1687 entry->query = SQS_TIMEDOUT;
1692 void NetConn_ClientFrame(void)
1695 lhnetaddress_t peeraddress;
1696 NetConn_UpdateSockets();
1697 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1699 if (cls.connect_remainingtries == 0)
1700 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1701 cls.connect_nextsendtime = realtime + 1;
1702 cls.connect_remainingtries--;
1703 if (cls.connect_remainingtries <= -10)
1705 cls.connect_trying = false;
1706 M_Update_Return_Reason("Connect: Failed");
1709 // try challenge first (newer DP server or QW)
1710 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1711 // then try netquake as a fallback (old server, or netquake)
1712 SZ_Clear(&net_message);
1713 // save space for the header, filled in later
1714 MSG_WriteLong(&net_message, 0);
1715 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1716 MSG_WriteString(&net_message, "QUAKE");
1717 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1718 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1719 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1720 SZ_Clear(&net_message);
1722 for (i = 0;i < cl_numsockets;i++)
1723 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1724 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1725 NetConn_QueryQueueFrame();
1726 if (cls.netcon && realtime > cls.netcon->timeout)
1728 Con_Print("Connection timed out\n");
1730 Host_ShutdownServer ();
1734 #define MAX_CHALLENGES 128
1737 lhnetaddress_t address;
1741 challenge[MAX_CHALLENGES];
1743 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1747 for (i = 0;i < bufferlength - 1;i++)
1751 c = rand () % (127 - 33) + 33;
1752 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1758 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1760 unsigned int nb_clients = 0, nb_bots = 0, i;
1763 // How many clients are there?
1764 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1766 if (svs.clients[i].active)
1769 if (!svs.clients[i].netconnection)
1774 // TODO: we should add more information for the full status string
1775 length = dpsnprintf(out_msg, out_size,
1776 "\377\377\377\377%s\x0A"
1777 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
1778 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
1781 fullstatus ? "statusResponse" : "infoResponse",
1782 gamename, com_modname, gameversion.integer, svs.maxclients,
1783 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1784 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1785 fullstatus ? "\n" : "");
1787 // Make sure it fits in the buffer
1796 ptr = out_msg + length;
1797 left = (int)out_size - length;
1799 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1801 client_t *cl = &svs.clients[i];
1804 int nameind, cleanind, pingvalue;
1806 char cleanname [sizeof(cl->name)];
1808 // Remove all characters '"' and '\' in the player name
1813 curchar = cl->name[nameind++];
1814 if (curchar != '"' && curchar != '\\')
1816 cleanname[cleanind++] = curchar;
1817 if (cleanind == sizeof(cleanname) - 1)
1820 } while (curchar != '\0');
1822 pingvalue = (int)(cl->ping * 1000.0f);
1823 if(cl->netconnection)
1824 pingvalue = bound(1, pingvalue, 9999);
1827 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1842 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
1844 int floodslotnum, bestfloodslotnum;
1845 double bestfloodtime;
1846 lhnetaddress_t noportpeeraddress;
1847 // see if this is a connect flood
1848 noportpeeraddress = *peeraddress;
1849 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1850 bestfloodslotnum = 0;
1851 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
1852 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1854 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
1856 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
1857 bestfloodslotnum = floodslotnum;
1859 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1861 // this address matches an ongoing flood address
1862 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
1864 // renew the ban on this address so it does not expire
1865 // until the flood has subsided
1866 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
1867 //Con_Printf("Flood detected!\n");
1870 // the flood appears to have subsided, so allow this
1871 bestfloodslotnum = floodslotnum; // reuse the same slot
1875 // begin a new timeout on this address
1876 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
1877 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
1878 //Con_Printf("Flood detection initiated!\n");
1882 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
1885 lhnetaddress_t noportpeeraddress;
1886 // see if this is a connect flood
1887 noportpeeraddress = *peeraddress;
1888 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1889 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1891 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1893 // this address matches an ongoing flood address
1895 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
1896 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
1897 //Con_Printf("Flood cleared!\n");
1902 extern void SV_SendServerinfo (client_t *client);
1903 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1905 int i, ret, clientnum, best;
1908 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
1909 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
1914 // convert the address to a string incase we need it
1915 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1917 // see if we can identify the sender as a local player
1918 // (this is necessary for rcon to send a reliable reply if the client is
1919 // actually on the server, not sending remotely)
1920 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1921 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
1923 if (i == svs.maxclients)
1926 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1928 // received a command string - strip off the packaging and put it
1929 // into our string buffer with NULL termination
1932 length = min(length, (int)sizeof(stringbuf) - 1);
1933 memcpy(stringbuf, data, length);
1934 stringbuf[length] = 0;
1937 if (developer.integer >= 10)
1939 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
1940 Com_HexDumpToConsole(data, length);
1943 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
1945 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
1947 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
1949 if (besttime > challenge[i].time)
1950 besttime = challenge[best = i].time;
1952 // if we did not find an exact match, choose the oldest and
1953 // update address and string
1954 if (i == MAX_CHALLENGES)
1957 challenge[i].address = *peeraddress;
1958 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
1960 challenge[i].time = realtime;
1961 // send the challenge
1962 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
1965 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
1970 if (!(s = SearchInfostring(string, "challenge")))
1972 // validate the challenge
1973 for (i = 0;i < MAX_CHALLENGES;i++)
1974 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
1976 // if the challenge is not recognized, drop the packet
1977 if (i == MAX_CHALLENGES)
1980 // check engine protocol
1981 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
1983 if (developer.integer >= 10)
1984 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
1985 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
1989 // see if this is a duplicate connection request or a disconnected
1990 // client who is rejoining to the same client slot
1991 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
1993 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
1995 // this is a known client...
1996 if (client->spawned)
1998 // client crashed and is coming back,
1999 // keep their stuff intact
2000 if (developer.integer >= 10)
2001 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2002 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2004 SV_SendServerinfo(client);
2009 // client is still trying to connect,
2010 // so we send a duplicate reply
2011 if (developer.integer >= 10)
2012 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2013 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2019 if (NetConn_PreventConnectFlood(peeraddress))
2022 // find an empty client slot for this new client
2023 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2026 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2028 // allocated connection
2029 if (developer.integer >= 10)
2030 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2031 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2032 // now set up the client
2034 SV_ConnectClient(clientnum, conn);
2036 NetConn_Heartbeat(1);
2041 // no empty slots found - server is full
2042 if (developer.integer >= 10)
2043 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2044 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2048 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2050 const char *challenge = NULL;
2052 // If there was a challenge in the getinfo message
2053 if (length > 8 && string[7] == ' ')
2054 challenge = string + 8;
2056 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2058 if (developer.integer >= 10)
2059 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
2060 NetConn_WriteString(mysocket, response, peeraddress);
2064 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2066 const char *challenge = NULL;
2068 // If there was a challenge in the getinfo message
2069 if (length > 10 && string[9] == ' ')
2070 challenge = string + 10;
2072 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2074 if (developer.integer >= 10)
2075 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
2076 NetConn_WriteString(mysocket, response, peeraddress);
2080 if (length >= 5 && !memcmp(string, "rcon ", 5))
2083 char *s = string + 5;
2085 for (i = 0;*s > ' ';s++)
2086 if (i < (int)sizeof(password) - 1)
2089 if (password[0] > ' ' && !strcmp(rcon_password.string, password))
2091 // looks like a legitimate rcon command with the correct password
2092 Con_Printf("server received rcon command from %s:\n%s\n", host_client ? host_client->name : addressstring2, s);
2093 rcon_redirect = true;
2094 rcon_redirect_bufferpos = 0;
2095 Cmd_ExecuteString(s, src_command);
2096 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
2097 rcon_redirect = false;
2098 // print resulting text to client
2099 // if client is playing, send a reliable reply instead of
2103 // if the netconnection is loop, then this is the
2104 // local player on a listen mode server, and it would
2105 // result in duplicate printing to the console
2106 // (not that the local player should be using rcon
2107 // when they have the console)
2108 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2109 SV_ClientPrintf("%s", rcon_redirect_buffer);
2114 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
2115 NetConn_WriteString(mysocket, response, peeraddress);
2120 if (!strncmp(string, "ping", 4))
2122 if (developer.integer >= 10)
2123 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
2124 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2127 if (!strncmp(string, "ack", 3))
2129 // we may not have liked the packet, but it was a command packet, so
2130 // we're done processing this packet now
2133 // netquake control packets, supported for compatibility only, and only
2134 // when running game protocols that are normally served via this connection
2136 // (this protects more modern protocols against being used for
2137 // Quake packet flood Denial Of Service attacks)
2138 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))
2142 const char *protocolname;
2145 SZ_Clear(&net_message);
2146 SZ_Write(&net_message, data, length);
2152 if (developer.integer >= 10)
2153 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2154 if(!islocal && sv_public.integer <= -2)
2157 protocolname = MSG_ReadString();
2158 protocolnumber = MSG_ReadByte();
2159 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2161 if (developer.integer >= 10)
2162 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2163 SZ_Clear(&net_message);
2164 // save space for the header, filled in later
2165 MSG_WriteLong(&net_message, 0);
2166 MSG_WriteByte(&net_message, CCREP_REJECT);
2167 MSG_WriteString(&net_message, "Incompatible version.\n");
2168 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2169 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2170 SZ_Clear(&net_message);
2174 // see if this connect request comes from a known client
2175 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2177 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2179 // this is either a duplicate connection request
2180 // or coming back from a timeout
2181 // (if so, keep their stuff intact)
2184 if (developer.integer >= 10)
2185 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2186 SZ_Clear(&net_message);
2187 // save space for the header, filled in later
2188 MSG_WriteLong(&net_message, 0);
2189 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2190 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2191 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2192 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2193 SZ_Clear(&net_message);
2195 // if client is already spawned, re-send the
2196 // serverinfo message as they'll need it to play
2197 if (client->spawned)
2200 SV_SendServerinfo(client);
2207 // this is a new client, check for connection flood
2208 if (NetConn_PreventConnectFlood(peeraddress))
2211 // find a slot for the new client
2212 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2215 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2217 // connect to the client
2218 // everything is allocated, just fill in the details
2219 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2220 if (developer.integer >= 10)
2221 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2222 // send back the info about the server connection
2223 SZ_Clear(&net_message);
2224 // save space for the header, filled in later
2225 MSG_WriteLong(&net_message, 0);
2226 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2227 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2228 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2229 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2230 SZ_Clear(&net_message);
2231 // now set up the client struct
2233 SV_ConnectClient(clientnum, conn);
2235 NetConn_Heartbeat(1);
2240 if (developer.integer >= 10)
2241 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2242 // no room; try to let player know
2243 SZ_Clear(&net_message);
2244 // save space for the header, filled in later
2245 MSG_WriteLong(&net_message, 0);
2246 MSG_WriteByte(&net_message, CCREP_REJECT);
2247 MSG_WriteString(&net_message, "Server is full.\n");
2248 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2249 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2250 SZ_Clear(&net_message);
2252 case CCREQ_SERVER_INFO:
2253 if (developer.integer >= 10)
2254 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2255 if(!islocal && sv_public.integer <= -1)
2257 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2260 char myaddressstring[128];
2261 if (developer.integer >= 10)
2262 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2263 SZ_Clear(&net_message);
2264 // save space for the header, filled in later
2265 MSG_WriteLong(&net_message, 0);
2266 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2267 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2268 MSG_WriteString(&net_message, myaddressstring);
2269 MSG_WriteString(&net_message, hostname.string);
2270 MSG_WriteString(&net_message, sv.name);
2271 // How many clients are there?
2272 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2273 if (svs.clients[i].active)
2275 MSG_WriteByte(&net_message, numclients);
2276 MSG_WriteByte(&net_message, svs.maxclients);
2277 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2278 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2279 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2280 SZ_Clear(&net_message);
2283 case CCREQ_PLAYER_INFO:
2284 if (developer.integer >= 10)
2285 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2286 if(!islocal && sv_public.integer <= -1)
2290 int playerNumber, activeNumber, clientNumber;
2293 playerNumber = MSG_ReadByte();
2295 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2296 if (client->active && ++activeNumber == playerNumber)
2298 if (clientNumber != svs.maxclients)
2300 SZ_Clear(&net_message);
2301 // save space for the header, filled in later
2302 MSG_WriteLong(&net_message, 0);
2303 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2304 MSG_WriteByte(&net_message, playerNumber);
2305 MSG_WriteString(&net_message, client->name);
2306 MSG_WriteLong(&net_message, client->colors);
2307 MSG_WriteLong(&net_message, client->frags);
2308 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2309 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2310 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2311 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2312 SZ_Clear(&net_message);
2316 case CCREQ_RULE_INFO:
2317 if (developer.integer >= 10)
2318 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2319 if(!islocal && sv_public.integer <= -1)
2326 // find the search start location
2327 prevCvarName = MSG_ReadString();
2328 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2330 // send the response
2331 SZ_Clear(&net_message);
2332 // save space for the header, filled in later
2333 MSG_WriteLong(&net_message, 0);
2334 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2337 MSG_WriteString(&net_message, var->name);
2338 MSG_WriteString(&net_message, var->string);
2340 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2341 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2342 SZ_Clear(&net_message);
2348 SZ_Clear(&net_message);
2349 // we may not have liked the packet, but it was a valid control
2350 // packet, so we're done processing this packet now
2355 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
2358 SV_ReadClientMessage();
2366 void NetConn_ServerFrame(void)
2369 lhnetaddress_t peeraddress;
2370 for (i = 0;i < sv_numsockets;i++)
2371 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2372 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2373 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2375 // never timeout loopback connections
2376 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2378 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2380 SV_DropClient(false);
2386 void NetConn_SleepMicroseconds(int microseconds)
2388 LHNET_SleepUntilPacket_Microseconds(microseconds);
2391 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
2395 lhnetaddress_t masteraddress;
2396 lhnetaddress_t broadcastaddress;
2399 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2402 // 26000 is the default quake server port, servers on other ports will not
2404 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2405 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2409 for (i = 0;i < cl_numsockets;i++)
2413 // search LAN for Quake servers
2414 SZ_Clear(&net_message);
2415 // save space for the header, filled in later
2416 MSG_WriteLong(&net_message, 0);
2417 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2418 MSG_WriteString(&net_message, "QUAKE");
2419 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2420 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2421 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2422 SZ_Clear(&net_message);
2424 // search LAN for DarkPlaces servers
2425 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2427 // build the getservers message to send to the dpmaster master servers
2428 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2431 for (masternum = 0;sv_masters[masternum].name;masternum++)
2433 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])))
2436 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2443 // only query QuakeWorld servers when the user wants to
2446 for (i = 0;i < cl_numsockets;i++)
2450 // search LAN for QuakeWorld servers
2451 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
2453 // build the getservers message to send to the qwmaster master servers
2454 // note this has no -1 prefix, and the trailing nul byte is sent
2455 dpsnprintf(request, sizeof(request), "c\n");
2458 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2460 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2462 if (m_state != m_slist)
2464 char lookupstring[128];
2465 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
2466 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
2469 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
2475 if (!masterquerycount)
2477 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2478 M_Update_Return_Reason("No network");
2482 void NetConn_Heartbeat(int priority)
2484 lhnetaddress_t masteraddress;
2486 lhnetsocket_t *mysocket;
2488 // if it's a state change (client connected), limit next heartbeat to no
2489 // more than 30 sec in the future
2490 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2491 nextheartbeattime = realtime + 30.0;
2493 // limit heartbeatperiod to 30 to 270 second range,
2494 // lower limit is to avoid abusing master servers with excess traffic,
2495 // upper limit is to avoid timing out on the master server (which uses
2497 if (sv_heartbeatperiod.value < 30)
2498 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2499 if (sv_heartbeatperiod.value > 270)
2500 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2502 // make advertising optional and don't advertise singleplayer games, and
2503 // only send a heartbeat as often as the admin wants
2504 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2506 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2507 for (masternum = 0;sv_masters[masternum].name;masternum++)
2508 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2509 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2513 static void Net_Heartbeat_f(void)
2516 NetConn_Heartbeat(2);
2518 Con_Print("No server running, can not heartbeat to master server.\n");
2521 void PrintStats(netconn_t *conn)
2523 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2524 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2526 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2529 void Net_Stats_f(void)
2532 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2533 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2534 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2535 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2536 Con_Printf("packetsSent = %i\n", packetsSent);
2537 Con_Printf("packetsReSent = %i\n", packetsReSent);
2538 Con_Printf("packetsReceived = %i\n", packetsReceived);
2539 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2540 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2541 Con_Print("connections =\n");
2542 for (conn = netconn_list;conn;conn = conn->next)
2546 void Net_Slist_f(void)
2548 ServerList_ResetMasks();
2549 serverlist_sortbyfield = SLIF_PING;
2550 serverlist_sortdescending = false;
2551 if (m_state != m_slist) {
2552 Con_Print("Sending requests to master servers\n");
2553 ServerList_QueryList(true, false);
2554 serverlist_consoleoutput = true;
2555 Con_Print("Listening for replies...\n");
2557 ServerList_QueryList(true, false);
2560 void Net_SlistQW_f(void)
2562 ServerList_ResetMasks();
2563 serverlist_sortbyfield = SLIF_PING;
2564 serverlist_sortdescending = false;
2565 if (m_state != m_slist) {
2566 Con_Print("Sending requests to master servers\n");
2567 ServerList_QueryList(false, true);
2568 serverlist_consoleoutput = true;
2569 Con_Print("Listening for replies...\n");
2571 ServerList_QueryList(false, true);
2574 void NetConn_Init(void)
2577 lhnetaddress_t tempaddress;
2578 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2579 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2580 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
2581 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
2582 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2583 Cvar_RegisterVariable(&net_slist_queriespersecond);
2584 Cvar_RegisterVariable(&net_slist_queriesperframe);
2585 Cvar_RegisterVariable(&net_slist_timeout);
2586 Cvar_RegisterVariable(&net_slist_maxtries);
2587 Cvar_RegisterVariable(&net_messagetimeout);
2588 Cvar_RegisterVariable(&net_connecttimeout);
2589 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
2590 Cvar_RegisterVariable(&cl_netlocalping);
2591 Cvar_RegisterVariable(&cl_netpacketloss_send);
2592 Cvar_RegisterVariable(&cl_netpacketloss_receive);
2593 Cvar_RegisterVariable(&hostname);
2594 Cvar_RegisterVariable(&developer_networking);
2595 Cvar_RegisterVariable(&cl_netport);
2596 Cvar_RegisterVariable(&sv_netport);
2597 Cvar_RegisterVariable(&net_address);
2598 //Cvar_RegisterVariable(&net_address_ipv6);
2599 Cvar_RegisterVariable(&sv_public);
2600 Cvar_RegisterVariable(&sv_heartbeatperiod);
2601 for (i = 0;sv_masters[i].name;i++)
2602 Cvar_RegisterVariable(&sv_masters[i]);
2603 Cvar_RegisterVariable(&gameversion);
2604 // 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.
2605 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2607 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2609 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
2610 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2613 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2615 // 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
2616 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2618 i = atoi(com_argv[i + 1]);
2619 if (i >= 0 && i < 65536)
2621 Con_Printf("-port option used, setting port cvar to %i\n", i);
2622 Cvar_SetValueQuick(&sv_netport, i);
2625 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2629 net_message.data = net_message_buf;
2630 net_message.maxsize = sizeof(net_message_buf);
2631 net_message.cursize = 0;
2635 void NetConn_Shutdown(void)
2637 NetConn_CloseClientPorts();
2638 NetConn_CloseServerPorts();