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 + 18;
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 + 18;
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 + 18;
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++;
701 totallen += packetLen + 18;
705 // delay later packets to obey rate limit
706 if (conn->cleartime < realtime - 0.1)
707 conn->cleartime = realtime - 0.1;
708 conn->cleartime = conn->cleartime + (double)totallen / (double)rate;
709 if (conn->cleartime < realtime)
710 conn->cleartime = realtime;
715 void NetConn_CloseClientPorts(void)
717 for (;cl_numsockets > 0;cl_numsockets--)
718 if (cl_sockets[cl_numsockets - 1])
719 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
722 void NetConn_OpenClientPort(const char *addressstring, int defaultport)
724 lhnetaddress_t address;
726 char addressstring2[1024];
727 if (LHNETADDRESS_FromString(&address, addressstring, defaultport))
729 if ((s = LHNET_OpenSocket_Connectionless(&address)))
731 cl_sockets[cl_numsockets++] = s;
732 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
733 Con_Printf("Client opened a socket on address %s\n", addressstring2);
737 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
738 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
742 Con_Printf("Client unable to parse address %s\n", addressstring);
745 void NetConn_OpenClientPorts(void)
748 NetConn_CloseClientPorts();
749 port = bound(0, cl_netport.integer, 65535);
750 if (cl_netport.integer != port)
751 Cvar_SetValueQuick(&cl_netport, port);
752 Con_Printf("Client using port %i\n", port);
753 NetConn_OpenClientPort("local:2", 0);
754 NetConn_OpenClientPort(net_address.string, port);
755 //NetConn_OpenClientPort(net_address_ipv6.string, port);
758 void NetConn_CloseServerPorts(void)
760 for (;sv_numsockets > 0;sv_numsockets--)
761 if (sv_sockets[sv_numsockets - 1])
762 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
765 void NetConn_OpenServerPort(const char *addressstring, int defaultport)
767 lhnetaddress_t address;
770 char addressstring2[1024];
772 for (port = defaultport; port <= defaultport + 100; port++)
774 if (LHNETADDRESS_FromString(&address, addressstring, port))
776 if ((s = LHNET_OpenSocket_Connectionless(&address)))
778 sv_sockets[sv_numsockets++] = s;
779 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
780 Con_Printf("Server listening on address %s\n", addressstring2);
785 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
786 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
791 Con_Printf("Server unable to parse address %s\n", addressstring);
792 // if it cant parse one address, it wont be able to parse another for sure
798 void NetConn_OpenServerPorts(int opennetports)
801 NetConn_CloseServerPorts();
802 NetConn_UpdateSockets();
803 port = bound(0, sv_netport.integer, 65535);
806 Con_Printf("Server using port %i\n", port);
807 if (sv_netport.integer != port)
808 Cvar_SetValueQuick(&sv_netport, port);
809 if (cls.state != ca_dedicated)
810 NetConn_OpenServerPort("local:1", 0);
813 NetConn_OpenServerPort(net_address.string, port);
814 //NetConn_OpenServerPort(net_address_ipv6.string, port);
816 if (sv_numsockets == 0)
817 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
820 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
822 int i, a = LHNETADDRESS_GetAddressType(address);
823 for (i = 0;i < cl_numsockets;i++)
824 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
825 return cl_sockets[i];
829 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
831 int i, a = LHNETADDRESS_GetAddressType(address);
832 for (i = 0;i < sv_numsockets;i++)
833 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
834 return sv_sockets[i];
838 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
841 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
842 conn->mysocket = mysocket;
843 conn->peeraddress = *peeraddress;
844 conn->lastMessageTime = realtime;
845 conn->message.data = conn->messagedata;
846 conn->message.maxsize = sizeof(conn->messagedata);
847 conn->message.cursize = 0;
848 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
849 // reduce effectiveness of connection request floods
850 conn->timeout = realtime + net_connecttimeout.value;
851 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
852 conn->next = netconn_list;
857 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress);
858 void NetConn_Close(netconn_t *conn)
861 // remove connection from list
863 // allow the client to reconnect immediately
864 NetConn_ClearConnectFlood(&(conn->peeraddress));
866 if (conn == netconn_list)
867 netconn_list = conn->next;
870 for (c = netconn_list;c;c = c->next)
874 c->next = conn->next;
878 // not found in list, we'll avoid crashing here...
886 static int clientport = -1;
887 static int clientport2 = -1;
888 static int hostport = -1;
889 void NetConn_UpdateSockets(void)
891 if (cls.state != ca_dedicated)
893 if (clientport2 != cl_netport.integer)
895 clientport2 = cl_netport.integer;
896 if (cls.state == ca_connected)
897 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
899 if (cls.state == ca_disconnected && clientport != clientport2)
901 clientport = clientport2;
902 NetConn_CloseClientPorts();
904 if (cl_numsockets == 0)
905 NetConn_OpenClientPorts();
908 if (hostport != sv_netport.integer)
910 hostport = sv_netport.integer;
912 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
916 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout)
918 int originallength = length;
922 // TODO: add netgraph stuff rather than just packetloss counting...
924 if (protocol == PROTOCOL_QUAKEWORLD)
926 int sequence, sequence_ack;
927 int reliable_ack, reliable_message;
931 sequence = LittleLong(*((int *)(data + 0)));
932 sequence_ack = LittleLong(*((int *)(data + 4)));
936 if (conn != cls.netcon)
941 // 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?)
942 qport = LittleShort(*((int *)(data + 8)));
948 reliable_message = (sequence >> 31) & 1;
949 reliable_ack = (sequence_ack >> 31) & 1;
950 sequence &= ~(1<<31);
951 sequence_ack &= ~(1<<31);
952 if (sequence <= conn->qw.incoming_sequence)
954 //Con_DPrint("Got a stale datagram\n");
957 count = sequence - (conn->qw.incoming_sequence + 1);
960 droppedDatagrams += count;
961 //Con_DPrintf("Dropped %u datagram(s)\n", count);
964 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
965 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
966 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
967 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
970 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
971 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
972 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
973 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
974 if (reliable_ack == conn->qw.reliable_sequence)
976 // received, now we will be able to send another reliable message
977 conn->sendMessageLength = 0;
978 reliableMessagesReceived++;
980 conn->qw.incoming_sequence = sequence;
981 if (conn == cls.netcon)
982 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
983 conn->qw.incoming_acknowledged = sequence_ack;
984 conn->qw.incoming_reliable_acknowledged = reliable_ack;
985 if (reliable_message)
986 conn->qw.incoming_reliable_sequence ^= 1;
987 conn->lastMessageTime = realtime;
988 conn->timeout = realtime + newtimeout;
989 unreliableMessagesReceived++;
990 SZ_Clear(&net_message);
991 SZ_Write(&net_message, data, length);
999 unsigned int sequence;
1002 qlength = (unsigned int)BigLong(((int *)data)[0]);
1003 flags = qlength & ~NETFLAG_LENGTH_MASK;
1004 qlength &= NETFLAG_LENGTH_MASK;
1005 // control packets were already handled
1006 if (!(flags & NETFLAG_CTL) && qlength == length)
1008 sequence = BigLong(((int *)data)[1]);
1012 if (flags & NETFLAG_UNRELIABLE)
1014 if (sequence >= conn->nq.unreliableReceiveSequence)
1016 if (sequence > conn->nq.unreliableReceiveSequence)
1018 count = sequence - conn->nq.unreliableReceiveSequence;
1019 droppedDatagrams += count;
1020 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1023 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1024 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1025 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1026 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1029 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1030 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1031 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1032 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1033 conn->nq.unreliableReceiveSequence = sequence + 1;
1034 conn->lastMessageTime = realtime;
1035 conn->timeout = realtime + newtimeout;
1036 unreliableMessagesReceived++;
1039 SZ_Clear(&net_message);
1040 SZ_Write(&net_message, data, length);
1046 // Con_DPrint("Got a stale datagram\n");
1049 else if (flags & NETFLAG_ACK)
1051 conn->incoming_acksize[conn->incoming_packetcounter] += originallength;
1052 if (sequence == (conn->nq.sendSequence - 1))
1054 if (sequence == conn->nq.ackSequence)
1056 conn->nq.ackSequence++;
1057 if (conn->nq.ackSequence != conn->nq.sendSequence)
1058 Con_DPrint("ack sequencing error\n");
1059 conn->lastMessageTime = realtime;
1060 conn->timeout = realtime + newtimeout;
1061 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1063 unsigned int packetLen;
1064 unsigned int dataLen;
1066 unsigned int *header;
1068 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1069 memcpy(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1071 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1073 dataLen = conn->sendMessageLength;
1078 dataLen = MAX_PACKETFRAGMENT;
1082 packetLen = NET_HEADERSIZE + dataLen;
1084 header = (unsigned int *)sendbuffer;
1085 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
1086 header[1] = BigLong(conn->nq.sendSequence);
1087 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1089 conn->nq.sendSequence++;
1091 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1093 conn->lastSendTime = realtime;
1098 conn->sendMessageLength = 0;
1101 // Con_DPrint("Duplicate ACK received\n");
1104 // Con_DPrint("Stale ACK received\n");
1107 else if (flags & NETFLAG_DATA)
1109 unsigned int temppacket[2];
1110 conn->incoming_reliablesize[conn->incoming_packetcounter] += originallength;
1111 conn->outgoing_acksize[conn->outgoing_packetcounter] += 8;
1112 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1113 temppacket[1] = BigLong(sequence);
1114 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1115 if (sequence == conn->nq.receiveSequence)
1117 conn->lastMessageTime = realtime;
1118 conn->timeout = realtime + newtimeout;
1119 conn->nq.receiveSequence++;
1120 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1121 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1122 conn->receiveMessageLength += length;
1124 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1125 "Dropping the message!\n", sequence );
1126 conn->receiveMessageLength = 0;
1129 if (flags & NETFLAG_EOM)
1131 reliableMessagesReceived++;
1132 length = conn->receiveMessageLength;
1133 conn->receiveMessageLength = 0;
1136 SZ_Clear(&net_message);
1137 SZ_Write(&net_message, conn->receiveMessage, length);
1144 receivedDuplicateCount++;
1152 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1154 cls.connect_trying = false;
1155 M_Update_Return_Reason("");
1156 // the connection request succeeded, stop current connection and set up a new connection
1158 // if we're connecting to a remote server, shut down any local server
1159 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1160 Host_ShutdownServer ();
1161 // allocate a net connection to keep track of things
1162 cls.netcon = NetConn_Open(mysocket, peeraddress);
1163 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1164 key_dest = key_game;
1166 cls.demonum = -1; // not in the demo loop now
1167 cls.state = ca_connected;
1168 cls.signon = 0; // need all the signon messages before playing
1169 cls.protocol = initialprotocol;
1170 // reset move sequence numbering on this new connection
1171 cls.movesequence = 0;
1172 cls.servermovesequence = 0;
1173 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1174 Cmd_ForwardStringToServer("new");
1175 if (cls.protocol == PROTOCOL_QUAKE)
1177 // write a keepalive (clc_nop) as it seems to greatly improve the
1178 // chances of connecting to a netquake server
1180 unsigned char buf[4];
1181 memset(&msg, 0, sizeof(msg));
1183 msg.maxsize = sizeof(buf);
1184 MSG_WriteChar(&msg, clc_nop);
1185 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000);
1189 int NetConn_IsLocalGame(void)
1191 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1196 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1200 // search the cache for this server and update it
1201 for (n = 0;n < serverlist_cachecount;n++)
1202 if (!strcmp(addressstring, serverlist_cache[n].info.cname))
1204 if (n == serverlist_cachecount)
1206 // LAN search doesnt require an answer from the master server so we wont
1207 // know the ping nor will it be initialized already...
1210 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1213 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1214 // store the data the engine cares about (address and ping)
1215 strlcpy(serverlist_cache[serverlist_cachecount].info.cname, addressstring, sizeof(serverlist_cache[serverlist_cachecount].info.cname));
1216 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1217 serverlist_cache[serverlist_cachecount].querytime = realtime;
1218 // if not in the slist menu we should print the server to console
1219 if (serverlist_consoleoutput)
1220 Con_Printf("querying %s\n", addressstring);
1221 ++serverlist_cachecount;
1223 // if this is the first reply from this server, count it as having replied
1224 if (serverlist_cache[n].info.ping == 100000)
1226 pingtime = (int)((realtime - serverlist_cache[n].querytime) * 1000.0 + 0.5);
1227 pingtime = bound(0, pingtime, 9999);
1229 serverlist_cache[n].info.ping = min(serverlist_cache[n].info.ping, pingtime);
1230 // other server info is updated by the caller
1234 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1236 serverlist_info_t *info = &serverlist_cache[n].info;
1237 // update description strings for engine menu and console output
1238 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);
1239 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);
1240 if (serverlist_cache[n].query == SQS_QUERIED)
1241 ServerList_ViewList_Remove(&serverlist_cache[n]);
1242 // if not in the slist menu we should print the server to console (if wanted)
1243 else if( serverlist_consoleoutput )
1244 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1245 // and finally, update the view set
1246 ServerList_ViewList_Insert( &serverlist_cache[n] );
1247 serverlist_cache[n].query = SQS_QUERIED;
1250 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1252 qboolean fromserver;
1253 int ret, c, control;
1255 char *string, addressstring2[128], ipstring[32];
1256 char stringbuf[16384];
1258 // quakeworld ingame packet
1259 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1261 // convert the address to a string incase we need it
1262 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1264 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1266 // received a command string - strip off the packaging and put it
1267 // into our string buffer with NULL termination
1270 length = min(length, (int)sizeof(stringbuf) - 1);
1271 memcpy(stringbuf, data, length);
1272 stringbuf[length] = 0;
1275 if (developer_networking.integer)
1277 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1278 Com_HexDumpToConsole(data, length);
1281 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1283 // darkplaces or quake3
1284 char protocolnames[1400];
1285 Protocol_Names(protocolnames, sizeof(protocolnames));
1286 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1287 M_Update_Return_Reason("Got challenge response");
1288 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1289 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1290 // TODO: add userinfo stuff here instead of using NQ commands?
1291 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1294 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1296 // darkplaces or quake3
1297 M_Update_Return_Reason("Accepted");
1298 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1301 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1303 char rejectreason[32];
1304 cls.connect_trying = false;
1306 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1307 memcpy(rejectreason, string, length);
1308 rejectreason[length] = 0;
1309 M_Update_Return_Reason(rejectreason);
1312 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1314 serverlist_info_t *info;
1318 // search the cache for this server and update it
1319 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1323 info = &serverlist_cache[n].info;
1328 info->protocol = -1;
1329 info->numplayers = 0;
1331 info->maxplayers = 0;
1332 info->gameversion = 0;
1333 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1334 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1335 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1336 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1337 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1338 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1339 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1340 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1341 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1342 info->numhumans = info->numplayers - max(0, info->numbots);
1344 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1348 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1350 // Extract the IP addresses
1354 if (serverlist_consoleoutput)
1355 Con_Print("received DarkPlaces server list...\n");
1356 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1360 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1361 if (serverlist_consoleoutput && developer_networking.integer)
1362 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1363 // ignore the rest of the message if the serverlist is full
1364 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1366 // also ignore it if we have already queried it (other master server response)
1367 for( n = 0 ; n < serverlist_cachecount ; n++ )
1368 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1370 if( n >= serverlist_cachecount )
1374 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1375 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_DARKPLACES7;
1376 // store the data the engine cares about (address and ping)
1377 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1378 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1379 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1381 ++serverlist_cachecount;
1384 // move on to next address in packet
1388 // begin or resume serverlist queries
1389 serverlist_querysleep = false;
1390 serverlist_querywaittime = realtime + 3;
1393 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1395 // Extract the IP addresses
1399 if (serverlist_consoleoutput)
1400 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1401 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1405 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1406 if (serverlist_consoleoutput && developer_networking.integer)
1407 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1408 // ignore the rest of the message if the serverlist is full
1409 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1411 // also ignore it if we have already queried it (other master server response)
1412 for( n = 0 ; n < serverlist_cachecount ; n++ )
1413 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1415 if( n >= serverlist_cachecount )
1419 memset(&serverlist_cache[serverlist_cachecount], 0, sizeof(serverlist_cache[serverlist_cachecount]));
1420 serverlist_cache[serverlist_cachecount].protocol = PROTOCOL_QUAKEWORLD;
1421 // store the data the engine cares about (address and ping)
1422 strlcpy (serverlist_cache[serverlist_cachecount].info.cname, ipstring, sizeof (serverlist_cache[serverlist_cachecount].info.cname));
1423 serverlist_cache[serverlist_cachecount].info.ping = 100000;
1424 serverlist_cache[serverlist_cachecount].query = SQS_QUERYING;
1426 ++serverlist_cachecount;
1429 // move on to next address in packet
1433 // begin or resume serverlist queries
1434 serverlist_querysleep = false;
1435 serverlist_querywaittime = realtime + 3;
1438 if (!strncmp(string, "extResponse ", 12))
1440 ++net_extresponse_count;
1441 if(net_extresponse_count > NET_EXTRESPONSE_MAX)
1442 net_extresponse_count = NET_EXTRESPONSE_MAX;
1443 net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1444 dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
1447 if (!strncmp(string, "ping", 4))
1449 if (developer.integer >= 10)
1450 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
1451 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1454 if (!strncmp(string, "ack", 3))
1456 // QuakeWorld compatibility
1457 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1459 // challenge message
1460 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1461 M_Update_Return_Reason("Got QuakeWorld challenge response");
1462 cls.qw_qport = qport.integer;
1463 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1464 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1465 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1468 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1471 M_Update_Return_Reason("QuakeWorld Accepted");
1472 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1475 if (length > 2 && !memcmp(string, "n\\", 2))
1477 serverlist_info_t *info;
1481 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1482 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1485 // search the cache for this server and update it
1486 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1490 info = &serverlist_cache[n].info;
1491 strlcpy(info->game, "QuakeWorld", sizeof(info->game));;
1492 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1493 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1494 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1496 info->numplayers = 0; // updated below
1497 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1498 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1500 // count active players on server
1501 // (we could gather more info, but we're just after the number)
1502 s = strchr(string, '\n');
1506 while (s < string + length)
1508 for (;s < string + length && *s != '\n';s++)
1510 if (s >= string + length)
1517 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1521 if (string[0] == 'n')
1524 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1526 // we may not have liked the packet, but it was a command packet, so
1527 // we're done processing this packet now
1530 // quakeworld ingame packet
1531 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1534 CL_ParseServerMessage();
1537 // netquake control packets, supported for compatibility only
1538 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1541 serverlist_info_t *info;
1545 SZ_Clear(&net_message);
1546 SZ_Write(&net_message, data, length);
1552 if (developer.integer >= 10)
1553 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1554 if (cls.connect_trying)
1556 lhnetaddress_t clientportaddress;
1557 clientportaddress = *peeraddress;
1558 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1559 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1560 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1561 M_Update_Return_Reason("Accepted");
1562 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1566 if (developer.integer >= 10)
1567 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1568 cls.connect_trying = false;
1569 M_Update_Return_Reason((char *)MSG_ReadString());
1571 case CCREP_SERVER_INFO:
1572 if (developer.integer >= 10)
1573 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1574 // LordHavoc: because the quake server may report weird addresses
1575 // we just ignore it and keep the real address
1577 // search the cache for this server and update it
1578 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1582 info = &serverlist_cache[n].info;
1583 strlcpy(info->game, "Quake", sizeof(info->game));
1584 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1585 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1586 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1587 info->numplayers = MSG_ReadByte();
1588 info->maxplayers = MSG_ReadByte();
1589 info->protocol = MSG_ReadByte();
1591 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1594 case CCREP_PLAYER_INFO:
1595 // we got a CCREP_PLAYER_INFO??
1596 //if (developer.integer >= 10)
1597 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1599 case CCREP_RULE_INFO:
1600 // we got a CCREP_RULE_INFO??
1601 //if (developer.integer >= 10)
1602 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1607 SZ_Clear(&net_message);
1608 // we may not have liked the packet, but it was a valid control
1609 // packet, so we're done processing this packet now
1613 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1614 CL_ParseServerMessage();
1618 void NetConn_QueryQueueFrame(void)
1624 static double querycounter = 0;
1626 if (serverlist_querysleep)
1629 // apply a cool down time after master server replies,
1630 // to avoid messing up the ping times on the servers
1631 if (serverlist_querywaittime > realtime)
1634 // each time querycounter reaches 1.0 issue a query
1635 querycounter += cl.realframetime * net_slist_queriespersecond.value;
1636 maxqueries = (int)querycounter;
1637 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1638 querycounter -= maxqueries;
1640 if( maxqueries == 0 ) {
1644 // scan serverlist and issue queries as needed
1645 serverlist_querysleep = true;
1647 timeouttime = realtime - net_slist_timeout.value;
1648 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1650 serverlist_entry_t *entry = &serverlist_cache[ index ];
1651 if( entry->query != SQS_QUERYING )
1656 serverlist_querysleep = false;
1657 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1662 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1664 lhnetaddress_t address;
1667 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1668 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1670 for (socket = 0; socket < cl_numsockets ; socket++)
1671 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1675 for (socket = 0; socket < cl_numsockets ; socket++)
1676 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1679 entry->querytime = realtime;
1680 entry->querycounter++;
1682 // if not in the slist menu we should print the server to console
1683 if (serverlist_consoleoutput)
1684 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1690 entry->query = SQS_TIMEDOUT;
1695 void NetConn_ClientFrame(void)
1698 lhnetaddress_t peeraddress;
1699 NetConn_UpdateSockets();
1700 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1702 if (cls.connect_remainingtries == 0)
1703 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1704 cls.connect_nextsendtime = realtime + 1;
1705 cls.connect_remainingtries--;
1706 if (cls.connect_remainingtries <= -10)
1708 cls.connect_trying = false;
1709 M_Update_Return_Reason("Connect: Failed");
1712 // try challenge first (newer DP server or QW)
1713 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1714 // then try netquake as a fallback (old server, or netquake)
1715 SZ_Clear(&net_message);
1716 // save space for the header, filled in later
1717 MSG_WriteLong(&net_message, 0);
1718 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1719 MSG_WriteString(&net_message, "QUAKE");
1720 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1721 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1722 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1723 SZ_Clear(&net_message);
1725 for (i = 0;i < cl_numsockets;i++)
1726 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1727 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1728 NetConn_QueryQueueFrame();
1729 if (cls.netcon && realtime > cls.netcon->timeout)
1731 Con_Print("Connection timed out\n");
1733 Host_ShutdownServer ();
1737 #define MAX_CHALLENGES 128
1740 lhnetaddress_t address;
1744 challenge[MAX_CHALLENGES];
1746 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1750 for (i = 0;i < bufferlength - 1;i++)
1754 c = rand () % (127 - 33) + 33;
1755 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1761 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1763 unsigned int nb_clients = 0, nb_bots = 0, i;
1766 // How many clients are there?
1767 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1769 if (svs.clients[i].active)
1772 if (!svs.clients[i].netconnection)
1777 // TODO: we should add more information for the full status string
1778 length = dpsnprintf(out_msg, out_size,
1779 "\377\377\377\377%s\x0A"
1780 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
1781 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
1784 fullstatus ? "statusResponse" : "infoResponse",
1785 gamename, com_modname, gameversion.integer, svs.maxclients,
1786 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1787 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1788 fullstatus ? "\n" : "");
1790 // Make sure it fits in the buffer
1799 ptr = out_msg + length;
1800 left = (int)out_size - length;
1802 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1804 client_t *cl = &svs.clients[i];
1807 int nameind, cleanind, pingvalue;
1809 char cleanname [sizeof(cl->name)];
1811 // Remove all characters '"' and '\' in the player name
1816 curchar = cl->name[nameind++];
1817 if (curchar != '"' && curchar != '\\')
1819 cleanname[cleanind++] = curchar;
1820 if (cleanind == sizeof(cleanname) - 1)
1823 } while (curchar != '\0');
1825 pingvalue = (int)(cl->ping * 1000.0f);
1826 if(cl->netconnection)
1827 pingvalue = bound(1, pingvalue, 9999);
1830 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1845 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
1847 int floodslotnum, bestfloodslotnum;
1848 double bestfloodtime;
1849 lhnetaddress_t noportpeeraddress;
1850 // see if this is a connect flood
1851 noportpeeraddress = *peeraddress;
1852 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1853 bestfloodslotnum = 0;
1854 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
1855 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1857 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
1859 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
1860 bestfloodslotnum = floodslotnum;
1862 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1864 // this address matches an ongoing flood address
1865 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
1867 // renew the ban on this address so it does not expire
1868 // until the flood has subsided
1869 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
1870 //Con_Printf("Flood detected!\n");
1873 // the flood appears to have subsided, so allow this
1874 bestfloodslotnum = floodslotnum; // reuse the same slot
1878 // begin a new timeout on this address
1879 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
1880 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
1881 //Con_Printf("Flood detection initiated!\n");
1885 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
1888 lhnetaddress_t noportpeeraddress;
1889 // see if this is a connect flood
1890 noportpeeraddress = *peeraddress;
1891 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1892 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1894 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1896 // this address matches an ongoing flood address
1898 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
1899 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
1900 //Con_Printf("Flood cleared!\n");
1905 extern void SV_SendServerinfo (client_t *client);
1906 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1908 int i, ret, clientnum, best;
1911 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
1912 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
1917 // convert the address to a string incase we need it
1918 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1920 // see if we can identify the sender as a local player
1921 // (this is necessary for rcon to send a reliable reply if the client is
1922 // actually on the server, not sending remotely)
1923 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1924 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
1926 if (i == svs.maxclients)
1929 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1931 // received a command string - strip off the packaging and put it
1932 // into our string buffer with NULL termination
1935 length = min(length, (int)sizeof(stringbuf) - 1);
1936 memcpy(stringbuf, data, length);
1937 stringbuf[length] = 0;
1940 if (developer.integer >= 10)
1942 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
1943 Com_HexDumpToConsole(data, length);
1946 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
1948 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
1950 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
1952 if (besttime > challenge[i].time)
1953 besttime = challenge[best = i].time;
1955 // if we did not find an exact match, choose the oldest and
1956 // update address and string
1957 if (i == MAX_CHALLENGES)
1960 challenge[i].address = *peeraddress;
1961 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
1963 challenge[i].time = realtime;
1964 // send the challenge
1965 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
1968 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
1973 if (!(s = SearchInfostring(string, "challenge")))
1975 // validate the challenge
1976 for (i = 0;i < MAX_CHALLENGES;i++)
1977 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
1979 // if the challenge is not recognized, drop the packet
1980 if (i == MAX_CHALLENGES)
1983 // check engine protocol
1984 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
1986 if (developer.integer >= 10)
1987 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
1988 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
1992 // see if this is a duplicate connection request or a disconnected
1993 // client who is rejoining to the same client slot
1994 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
1996 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
1998 // this is a known client...
1999 if (client->spawned)
2001 // client crashed and is coming back,
2002 // keep their stuff intact
2003 if (developer.integer >= 10)
2004 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2005 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2007 SV_SendServerinfo(client);
2012 // client is still trying to connect,
2013 // so we send a duplicate reply
2014 if (developer.integer >= 10)
2015 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2016 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2022 if (NetConn_PreventConnectFlood(peeraddress))
2025 // find an empty client slot for this new client
2026 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2029 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2031 // allocated connection
2032 if (developer.integer >= 10)
2033 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2034 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2035 // now set up the client
2037 SV_ConnectClient(clientnum, conn);
2039 NetConn_Heartbeat(1);
2044 // no empty slots found - server is full
2045 if (developer.integer >= 10)
2046 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2047 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2051 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2053 const char *challenge = NULL;
2055 // If there was a challenge in the getinfo message
2056 if (length > 8 && string[7] == ' ')
2057 challenge = string + 8;
2059 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2061 if (developer.integer >= 10)
2062 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
2063 NetConn_WriteString(mysocket, response, peeraddress);
2067 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2069 const char *challenge = NULL;
2071 // If there was a challenge in the getinfo message
2072 if (length > 10 && string[9] == ' ')
2073 challenge = string + 10;
2075 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2077 if (developer.integer >= 10)
2078 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
2079 NetConn_WriteString(mysocket, response, peeraddress);
2083 if (length >= 5 && !memcmp(string, "rcon ", 5))
2086 char *s = string + 5;
2088 for (i = 0;*s > ' ';s++)
2089 if (i < (int)sizeof(password) - 1)
2092 if (password[0] > ' ' && !strcmp(rcon_password.string, password))
2094 // looks like a legitimate rcon command with the correct password
2095 Con_Printf("server received rcon command from %s:\n%s\n", host_client ? host_client->name : addressstring2, s);
2096 rcon_redirect = true;
2097 rcon_redirect_bufferpos = 0;
2098 Cmd_ExecuteString(s, src_command);
2099 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
2100 rcon_redirect = false;
2101 // print resulting text to client
2102 // if client is playing, send a reliable reply instead of
2106 // if the netconnection is loop, then this is the
2107 // local player on a listen mode server, and it would
2108 // result in duplicate printing to the console
2109 // (not that the local player should be using rcon
2110 // when they have the console)
2111 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2112 SV_ClientPrintf("%s", rcon_redirect_buffer);
2117 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
2118 NetConn_WriteString(mysocket, response, peeraddress);
2123 if (!strncmp(string, "ping", 4))
2125 if (developer.integer >= 10)
2126 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
2127 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2130 if (!strncmp(string, "ack", 3))
2132 // we may not have liked the packet, but it was a command packet, so
2133 // we're done processing this packet now
2136 // netquake control packets, supported for compatibility only, and only
2137 // when running game protocols that are normally served via this connection
2139 // (this protects more modern protocols against being used for
2140 // Quake packet flood Denial Of Service attacks)
2141 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))
2145 const char *protocolname;
2148 SZ_Clear(&net_message);
2149 SZ_Write(&net_message, data, length);
2155 if (developer.integer >= 10)
2156 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2157 if(!islocal && sv_public.integer <= -2)
2160 protocolname = MSG_ReadString();
2161 protocolnumber = MSG_ReadByte();
2162 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2164 if (developer.integer >= 10)
2165 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2166 SZ_Clear(&net_message);
2167 // save space for the header, filled in later
2168 MSG_WriteLong(&net_message, 0);
2169 MSG_WriteByte(&net_message, CCREP_REJECT);
2170 MSG_WriteString(&net_message, "Incompatible version.\n");
2171 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2172 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2173 SZ_Clear(&net_message);
2177 // see if this connect request comes from a known client
2178 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2180 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2182 // this is either a duplicate connection request
2183 // or coming back from a timeout
2184 // (if so, keep their stuff intact)
2187 if (developer.integer >= 10)
2188 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2189 SZ_Clear(&net_message);
2190 // save space for the header, filled in later
2191 MSG_WriteLong(&net_message, 0);
2192 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2193 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2194 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2195 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2196 SZ_Clear(&net_message);
2198 // if client is already spawned, re-send the
2199 // serverinfo message as they'll need it to play
2200 if (client->spawned)
2203 SV_SendServerinfo(client);
2210 // this is a new client, check for connection flood
2211 if (NetConn_PreventConnectFlood(peeraddress))
2214 // find a slot for the new client
2215 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2218 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2220 // connect to the client
2221 // everything is allocated, just fill in the details
2222 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2223 if (developer.integer >= 10)
2224 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2225 // send back the info about the server connection
2226 SZ_Clear(&net_message);
2227 // save space for the header, filled in later
2228 MSG_WriteLong(&net_message, 0);
2229 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2230 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2231 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2232 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2233 SZ_Clear(&net_message);
2234 // now set up the client struct
2236 SV_ConnectClient(clientnum, conn);
2238 NetConn_Heartbeat(1);
2243 if (developer.integer >= 10)
2244 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2245 // no room; try to let player know
2246 SZ_Clear(&net_message);
2247 // save space for the header, filled in later
2248 MSG_WriteLong(&net_message, 0);
2249 MSG_WriteByte(&net_message, CCREP_REJECT);
2250 MSG_WriteString(&net_message, "Server is full.\n");
2251 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2252 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2253 SZ_Clear(&net_message);
2255 case CCREQ_SERVER_INFO:
2256 if (developer.integer >= 10)
2257 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2258 if(!islocal && sv_public.integer <= -1)
2260 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2263 char myaddressstring[128];
2264 if (developer.integer >= 10)
2265 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2266 SZ_Clear(&net_message);
2267 // save space for the header, filled in later
2268 MSG_WriteLong(&net_message, 0);
2269 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2270 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2271 MSG_WriteString(&net_message, myaddressstring);
2272 MSG_WriteString(&net_message, hostname.string);
2273 MSG_WriteString(&net_message, sv.name);
2274 // How many clients are there?
2275 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2276 if (svs.clients[i].active)
2278 MSG_WriteByte(&net_message, numclients);
2279 MSG_WriteByte(&net_message, svs.maxclients);
2280 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2281 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2282 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2283 SZ_Clear(&net_message);
2286 case CCREQ_PLAYER_INFO:
2287 if (developer.integer >= 10)
2288 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2289 if(!islocal && sv_public.integer <= -1)
2293 int playerNumber, activeNumber, clientNumber;
2296 playerNumber = MSG_ReadByte();
2298 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2299 if (client->active && ++activeNumber == playerNumber)
2301 if (clientNumber != svs.maxclients)
2303 SZ_Clear(&net_message);
2304 // save space for the header, filled in later
2305 MSG_WriteLong(&net_message, 0);
2306 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2307 MSG_WriteByte(&net_message, playerNumber);
2308 MSG_WriteString(&net_message, client->name);
2309 MSG_WriteLong(&net_message, client->colors);
2310 MSG_WriteLong(&net_message, client->frags);
2311 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2312 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2313 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2314 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2315 SZ_Clear(&net_message);
2319 case CCREQ_RULE_INFO:
2320 if (developer.integer >= 10)
2321 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2322 if(!islocal && sv_public.integer <= -1)
2329 // find the search start location
2330 prevCvarName = MSG_ReadString();
2331 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2333 // send the response
2334 SZ_Clear(&net_message);
2335 // save space for the header, filled in later
2336 MSG_WriteLong(&net_message, 0);
2337 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2340 MSG_WriteString(&net_message, var->name);
2341 MSG_WriteString(&net_message, var->string);
2343 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2344 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2345 SZ_Clear(&net_message);
2351 SZ_Clear(&net_message);
2352 // we may not have liked the packet, but it was a valid control
2353 // packet, so we're done processing this packet now
2358 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
2361 SV_ReadClientMessage();
2369 void NetConn_ServerFrame(void)
2372 lhnetaddress_t peeraddress;
2373 for (i = 0;i < sv_numsockets;i++)
2374 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2375 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2376 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2378 // never timeout loopback connections
2379 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2381 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2383 SV_DropClient(false);
2389 void NetConn_SleepMicroseconds(int microseconds)
2391 LHNET_SleepUntilPacket_Microseconds(microseconds);
2394 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
2398 lhnetaddress_t masteraddress;
2399 lhnetaddress_t broadcastaddress;
2402 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2405 // 26000 is the default quake server port, servers on other ports will not
2407 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2408 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2412 for (i = 0;i < cl_numsockets;i++)
2416 // search LAN for Quake servers
2417 SZ_Clear(&net_message);
2418 // save space for the header, filled in later
2419 MSG_WriteLong(&net_message, 0);
2420 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2421 MSG_WriteString(&net_message, "QUAKE");
2422 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2423 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2424 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2425 SZ_Clear(&net_message);
2427 // search LAN for DarkPlaces servers
2428 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2430 // build the getservers message to send to the dpmaster master servers
2431 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2434 for (masternum = 0;sv_masters[masternum].name;masternum++)
2436 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])))
2439 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2446 // only query QuakeWorld servers when the user wants to
2449 for (i = 0;i < cl_numsockets;i++)
2453 // search LAN for QuakeWorld servers
2454 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
2456 // build the getservers message to send to the qwmaster master servers
2457 // note this has no -1 prefix, and the trailing nul byte is sent
2458 dpsnprintf(request, sizeof(request), "c\n");
2461 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2463 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2465 if (m_state != m_slist)
2467 char lookupstring[128];
2468 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
2469 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
2472 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
2478 if (!masterquerycount)
2480 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2481 M_Update_Return_Reason("No network");
2485 void NetConn_Heartbeat(int priority)
2487 lhnetaddress_t masteraddress;
2489 lhnetsocket_t *mysocket;
2491 // if it's a state change (client connected), limit next heartbeat to no
2492 // more than 30 sec in the future
2493 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2494 nextheartbeattime = realtime + 30.0;
2496 // limit heartbeatperiod to 30 to 270 second range,
2497 // lower limit is to avoid abusing master servers with excess traffic,
2498 // upper limit is to avoid timing out on the master server (which uses
2500 if (sv_heartbeatperiod.value < 30)
2501 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2502 if (sv_heartbeatperiod.value > 270)
2503 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2505 // make advertising optional and don't advertise singleplayer games, and
2506 // only send a heartbeat as often as the admin wants
2507 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2509 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2510 for (masternum = 0;sv_masters[masternum].name;masternum++)
2511 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2512 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2516 static void Net_Heartbeat_f(void)
2519 NetConn_Heartbeat(2);
2521 Con_Print("No server running, can not heartbeat to master server.\n");
2524 void PrintStats(netconn_t *conn)
2526 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2527 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2529 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2532 void Net_Stats_f(void)
2535 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2536 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2537 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2538 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2539 Con_Printf("packetsSent = %i\n", packetsSent);
2540 Con_Printf("packetsReSent = %i\n", packetsReSent);
2541 Con_Printf("packetsReceived = %i\n", packetsReceived);
2542 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2543 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2544 Con_Print("connections =\n");
2545 for (conn = netconn_list;conn;conn = conn->next)
2549 void Net_Slist_f(void)
2551 ServerList_ResetMasks();
2552 serverlist_sortbyfield = SLIF_PING;
2553 serverlist_sortdescending = false;
2554 if (m_state != m_slist) {
2555 Con_Print("Sending requests to master servers\n");
2556 ServerList_QueryList(true, false);
2557 serverlist_consoleoutput = true;
2558 Con_Print("Listening for replies...\n");
2560 ServerList_QueryList(true, false);
2563 void Net_SlistQW_f(void)
2565 ServerList_ResetMasks();
2566 serverlist_sortbyfield = SLIF_PING;
2567 serverlist_sortdescending = false;
2568 if (m_state != m_slist) {
2569 Con_Print("Sending requests to master servers\n");
2570 ServerList_QueryList(false, true);
2571 serverlist_consoleoutput = true;
2572 Con_Print("Listening for replies...\n");
2574 ServerList_QueryList(false, true);
2577 void NetConn_Init(void)
2580 lhnetaddress_t tempaddress;
2581 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2582 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2583 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
2584 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
2585 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2586 Cvar_RegisterVariable(&net_slist_queriespersecond);
2587 Cvar_RegisterVariable(&net_slist_queriesperframe);
2588 Cvar_RegisterVariable(&net_slist_timeout);
2589 Cvar_RegisterVariable(&net_slist_maxtries);
2590 Cvar_RegisterVariable(&net_messagetimeout);
2591 Cvar_RegisterVariable(&net_connecttimeout);
2592 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
2593 Cvar_RegisterVariable(&cl_netlocalping);
2594 Cvar_RegisterVariable(&cl_netpacketloss_send);
2595 Cvar_RegisterVariable(&cl_netpacketloss_receive);
2596 Cvar_RegisterVariable(&hostname);
2597 Cvar_RegisterVariable(&developer_networking);
2598 Cvar_RegisterVariable(&cl_netport);
2599 Cvar_RegisterVariable(&sv_netport);
2600 Cvar_RegisterVariable(&net_address);
2601 //Cvar_RegisterVariable(&net_address_ipv6);
2602 Cvar_RegisterVariable(&sv_public);
2603 Cvar_RegisterVariable(&sv_heartbeatperiod);
2604 for (i = 0;sv_masters[i].name;i++)
2605 Cvar_RegisterVariable(&sv_masters[i]);
2606 Cvar_RegisterVariable(&gameversion);
2607 // 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.
2608 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2610 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2612 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
2613 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2616 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2618 // 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
2619 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2621 i = atoi(com_argv[i + 1]);
2622 if (i >= 0 && i < 65536)
2624 Con_Printf("-port option used, setting port cvar to %i\n", i);
2625 Cvar_SetValueQuick(&sv_netport, i);
2628 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2632 net_message.data = net_message_buf;
2633 net_message.maxsize = sizeof(net_message_buf);
2634 net_message.cursize = 0;
2638 void NetConn_Shutdown(void)
2640 NetConn_CloseClientPorts();
2641 NetConn_CloseServerPorts();