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.freeslots - B->info.freeslots;
198 result = A->info.protocol - B->info.protocol;
201 result = strcmp( B->info.cname, A->info.cname );
204 result = strcmp( B->info.game, A->info.game );
207 result = strcmp( B->info.map, A->info.map );
210 result = strcmp( B->info.mod, A->info.mod );
213 result = strcmp( B->info.name, A->info.name );
216 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
220 if( serverlist_sortdescending )
224 // if the chosen sort key is identical, sort by index
225 // (makes this a stable sort, so that later replies from servers won't
226 // shuffle the servers around when they have the same ping)
230 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
232 // This should actually be done with some intermediate and end-of-function return
244 case SLMO_GREATEREQUAL:
246 case SLMO_NOTCONTAIN:
249 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
254 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
257 char bufferA[ 256 ], bufferB[ 256 ]; // should be more than enough
258 for (i = 0;i < (int)sizeof(bufferA)-1 && A[i];i++)
259 bufferA[i] = (A[i] >= 'A' && A[i] <= 'Z') ? (A[i] + 'a' - 'A') : A[i];
261 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
262 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
265 // Same here, also using an intermediate & final return would be more appropriate
269 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
270 case SLMO_NOTCONTAIN:
271 return !*bufferB || !strstr( bufferA, bufferB );
273 return strcmp( bufferA, bufferB ) < 0;
275 return strcmp( bufferA, bufferB ) <= 0;
277 return strcmp( bufferA, bufferB ) == 0;
279 return strcmp( bufferA, bufferB ) > 0;
281 return strcmp( bufferA, bufferB ) != 0;
282 case SLMO_GREATEREQUAL:
283 return strcmp( bufferA, bufferB ) >= 0;
285 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
290 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
292 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
294 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
296 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
298 if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) )
300 if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) )
302 if( !_ServerList_CompareInt( info->freeslots, mask->tests[SLIF_FREESLOTS], mask->info.freeslots ) )
304 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
306 if( *mask->info.cname
307 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
310 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
313 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
316 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
319 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
324 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
328 // reject incompatible servers
329 if (entry->info.gameversion != gameversion.integer)
332 // FIXME: change this to be more readable (...)
333 // now check whether it passes through the masks
334 for( start = 0 ; serverlist_andmasks[start].active && start < SERVERLIST_ANDMASKCOUNT ; start++ )
335 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
338 for( start = 0 ; serverlist_ormasks[start].active && start < SERVERLIST_ORMASKCOUNT ; start++ )
339 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
341 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
344 if( !serverlist_viewcount ) {
345 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
348 // ok, insert it, we just need to find out where exactly:
351 // check whether to insert it as new first item
352 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
353 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
355 } // check whether to insert it as new last item
356 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
357 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
361 end = serverlist_viewcount - 1;
362 while( end > start + 1 )
364 mid = (start + end) / 2;
365 // test the item that lies in the middle between start and end
366 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
367 // the item has to be in the upper half
370 // the item has to be in the lower half
373 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
376 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
379 for( i = 0; i < serverlist_viewcount; i++ )
381 if (serverlist_viewlist[i] == entry)
383 _ServerList_ViewList_Helper_Remove(i);
389 void ServerList_RebuildViewList(void)
393 serverlist_viewcount = 0;
394 for( i = 0 ; i < serverlist_cachecount ; i++ )
395 if( serverlist_cache[i].query == SQS_QUERIED )
396 ServerList_ViewList_Insert( &serverlist_cache[i] );
399 void ServerList_ResetMasks(void)
403 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
404 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
405 // numbots needs to be compared to -1 to always succeed
406 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
407 serverlist_andmasks[i].info.numbots = -1;
408 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
409 serverlist_ormasks[i].info.numbots = -1;
413 static void _ServerList_Test(void)
416 for( i = 0 ; i < 1024 ; i++ ) {
417 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
418 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
419 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
420 serverlist_cache[serverlist_cachecount].finished = true;
421 sprintf( serverlist_cache[serverlist_cachecount].line1, "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
422 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
423 serverlist_cachecount++;
428 void ServerList_QueryList(qboolean resetcache, qboolean querydp, qboolean queryqw, qboolean consoleoutput)
430 masterquerytime = realtime;
431 masterquerycount = 0;
432 masterreplycount = 0;
434 serverquerycount = 0;
435 serverreplycount = 0;
436 serverlist_cachecount = 0;
437 serverlist_viewcount = 0;
439 // refresh all entries
441 for( n = 0 ; n < serverlist_cachecount ; n++ ) {
442 serverlist_entry_t *entry = &serverlist_cache[ n ];
443 entry->refresh = true;
444 entry->query = SQS_QUERYING;
447 serverlist_consoleoutput = consoleoutput;
449 //_ServerList_Test();
451 NetConn_QueryMasters(querydp, queryqw);
456 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
458 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
462 if (cl_netpacketloss_receive.integer)
463 for (i = 0;i < cl_numsockets;i++)
464 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer)
466 if (developer_networking.integer)
468 char addressstring[128], addressstring2[128];
469 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
472 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
473 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", mysocket, addressstring, data, maxlength, peeraddress, length, addressstring2);
474 Com_HexDumpToConsole((unsigned char *)data, length);
477 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", mysocket, addressstring, data, maxlength, peeraddress, length);
482 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
486 if (cl_netpacketloss_send.integer)
487 for (i = 0;i < cl_numsockets;i++)
488 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer)
490 ret = LHNET_Write(mysocket, data, length, peeraddress);
491 if (developer_networking.integer)
493 char addressstring[128], addressstring2[128];
494 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
495 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
496 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", mysocket, addressstring, data, length, peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
497 Com_HexDumpToConsole((unsigned char *)data, length);
502 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
504 // note this does not include the trailing NULL because we add that in the parser
505 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
508 qboolean NetConn_CanSend(netconn_t *conn)
510 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
511 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
512 conn->outgoing_reliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
513 conn->outgoing_acksize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
514 if (realtime > conn->cleartime)
518 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_CHOKEDPACKET;
523 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate, qboolean quakesignon_suppressreliables)
527 // if this packet was supposedly choked, but we find ourselves sending one
528 // anyway, make sure the size counting starts at zero
529 // (this mostly happens on level changes and disconnects and such)
530 if (conn->outgoing_unreliablesize[conn->outgoing_packetcounter] == NETGRAPH_CHOKEDPACKET)
531 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
533 if (protocol == PROTOCOL_QUAKEWORLD)
536 qboolean sendreliable;
538 // note that it is ok to send empty messages to the qw server,
539 // otherwise it won't respond to us at all
541 sendreliable = false;
542 // if the remote side dropped the last reliable message, resend it
543 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
545 // if the reliable transmit buffer is empty, copy the current message out
546 if (!conn->sendMessageLength && conn->message.cursize)
548 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
549 conn->sendMessageLength = conn->message.cursize;
550 SZ_Clear(&conn->message); // clear the message buffer
551 conn->qw.reliable_sequence ^= 1;
554 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
555 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->qw.outgoing_sequence | ((unsigned int)sendreliable<<31));
556 // last received unreliable packet number, and last received reliable packet number (0 or 1)
557 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
559 conn->qw.outgoing_sequence++;
560 // client sends qport in every packet
561 if (conn == cls.netcon)
563 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
565 // also update cls.qw_outgoing_sequence
566 cls.qw_outgoing_sequence = conn->qw.outgoing_sequence;
568 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
570 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
574 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
576 // add the reliable message if there is one
579 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += conn->sendMessageLength;
580 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
581 packetLen += conn->sendMessageLength;
582 conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence;
585 // add the unreliable message if possible
586 if (packetLen + data->cursize <= 1400)
588 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += data->cursize;
589 memcpy(sendbuffer + packetLen, data->data, data->cursize);
590 packetLen += data->cursize;
593 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
596 unreliableMessagesSent++;
598 totallen += packetLen + 28;
602 unsigned int packetLen;
603 unsigned int dataLen;
605 unsigned int *header;
607 // if a reliable message fragment has been lost, send it again
608 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
610 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
612 dataLen = conn->sendMessageLength;
617 dataLen = MAX_PACKETFRAGMENT;
621 packetLen = NET_HEADERSIZE + dataLen;
623 header = (unsigned int *)sendbuffer;
624 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
625 header[1] = BigLong(conn->nq.sendSequence - 1);
626 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
628 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
630 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
632 conn->lastSendTime = realtime;
636 totallen += packetLen + 28;
639 // if we have a new reliable message to send, do so
640 if (!conn->sendMessageLength && conn->message.cursize && !quakesignon_suppressreliables)
642 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
644 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
645 conn->message.overflowed = true;
649 if (developer_networking.integer && conn == cls.netcon)
651 Con_Print("client sending reliable message to server:\n");
652 SZ_HexDumpToConsole(&conn->message);
655 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
656 conn->sendMessageLength = conn->message.cursize;
657 SZ_Clear(&conn->message);
659 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
661 dataLen = conn->sendMessageLength;
666 dataLen = MAX_PACKETFRAGMENT;
670 packetLen = NET_HEADERSIZE + dataLen;
672 header = (unsigned int *)sendbuffer;
673 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
674 header[1] = BigLong(conn->nq.sendSequence);
675 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
677 conn->nq.sendSequence++;
679 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
681 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
683 conn->lastSendTime = realtime;
685 reliableMessagesSent++;
687 totallen += packetLen + 28;
690 // if we have an unreliable message to send, do so
693 packetLen = NET_HEADERSIZE + data->cursize;
695 if (packetLen > (int)sizeof(sendbuffer))
697 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
701 header = (unsigned int *)sendbuffer;
702 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
703 header[1] = BigLong(conn->nq.unreliableSendSequence);
704 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
706 conn->nq.unreliableSendSequence++;
708 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
710 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
713 unreliableMessagesSent++;
715 totallen += packetLen + 28;
719 // delay later packets to obey rate limit
720 if (conn->cleartime < realtime - 0.1)
721 conn->cleartime = realtime - 0.1;
722 conn->cleartime = conn->cleartime + (double)totallen / (double)rate;
723 if (conn->cleartime < realtime)
724 conn->cleartime = realtime;
729 qboolean NetConn_HaveClientPorts(void)
731 return !!cl_numsockets;
734 qboolean NetConn_HaveServerPorts(void)
736 return !!sv_numsockets;
739 void NetConn_CloseClientPorts(void)
741 for (;cl_numsockets > 0;cl_numsockets--)
742 if (cl_sockets[cl_numsockets - 1])
743 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
746 void NetConn_OpenClientPort(const char *addressstring, int defaultport)
748 lhnetaddress_t address;
750 char addressstring2[1024];
751 if (LHNETADDRESS_FromString(&address, addressstring, defaultport))
753 if ((s = LHNET_OpenSocket_Connectionless(&address)))
755 cl_sockets[cl_numsockets++] = s;
756 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
757 Con_Printf("Client opened a socket on address %s\n", addressstring2);
761 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
762 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
766 Con_Printf("Client unable to parse address %s\n", addressstring);
769 void NetConn_OpenClientPorts(void)
772 NetConn_CloseClientPorts();
773 port = bound(0, cl_netport.integer, 65535);
774 if (cl_netport.integer != port)
775 Cvar_SetValueQuick(&cl_netport, port);
776 Con_Printf("Client using port %i\n", port);
777 NetConn_OpenClientPort("local:2", 0);
778 NetConn_OpenClientPort(net_address.string, port);
779 //NetConn_OpenClientPort(net_address_ipv6.string, port);
782 void NetConn_CloseServerPorts(void)
784 for (;sv_numsockets > 0;sv_numsockets--)
785 if (sv_sockets[sv_numsockets - 1])
786 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
789 void NetConn_OpenServerPort(const char *addressstring, int defaultport)
791 lhnetaddress_t address;
794 char addressstring2[1024];
796 for (port = defaultport; port <= defaultport + 100; port++)
798 if (LHNETADDRESS_FromString(&address, addressstring, port))
800 if ((s = LHNET_OpenSocket_Connectionless(&address)))
802 sv_sockets[sv_numsockets++] = s;
803 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
804 Con_Printf("Server listening on address %s\n", addressstring2);
809 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
810 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
815 Con_Printf("Server unable to parse address %s\n", addressstring);
816 // if it cant parse one address, it wont be able to parse another for sure
822 void NetConn_OpenServerPorts(int opennetports)
825 NetConn_CloseServerPorts();
826 NetConn_UpdateSockets();
827 port = bound(0, sv_netport.integer, 65535);
830 Con_Printf("Server using port %i\n", port);
831 if (sv_netport.integer != port)
832 Cvar_SetValueQuick(&sv_netport, port);
833 if (cls.state != ca_dedicated)
834 NetConn_OpenServerPort("local:1", 0);
837 NetConn_OpenServerPort(net_address.string, port);
838 //NetConn_OpenServerPort(net_address_ipv6.string, port);
840 if (sv_numsockets == 0)
841 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
844 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
846 int i, a = LHNETADDRESS_GetAddressType(address);
847 for (i = 0;i < cl_numsockets;i++)
848 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
849 return cl_sockets[i];
853 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
855 int i, a = LHNETADDRESS_GetAddressType(address);
856 for (i = 0;i < sv_numsockets;i++)
857 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
858 return sv_sockets[i];
862 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
865 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
866 conn->mysocket = mysocket;
867 conn->peeraddress = *peeraddress;
868 conn->lastMessageTime = realtime;
869 conn->message.data = conn->messagedata;
870 conn->message.maxsize = sizeof(conn->messagedata);
871 conn->message.cursize = 0;
872 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
873 // reduce effectiveness of connection request floods
874 conn->timeout = realtime + net_connecttimeout.value;
875 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
876 conn->next = netconn_list;
881 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress);
882 void NetConn_Close(netconn_t *conn)
885 // remove connection from list
887 // allow the client to reconnect immediately
888 NetConn_ClearConnectFlood(&(conn->peeraddress));
890 if (conn == netconn_list)
891 netconn_list = conn->next;
894 for (c = netconn_list;c;c = c->next)
898 c->next = conn->next;
902 // not found in list, we'll avoid crashing here...
910 static int clientport = -1;
911 static int clientport2 = -1;
912 static int hostport = -1;
913 void NetConn_UpdateSockets(void)
915 if (cls.state != ca_dedicated)
917 if (clientport2 != cl_netport.integer)
919 clientport2 = cl_netport.integer;
920 if (cls.state == ca_connected)
921 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
923 if (cls.state == ca_disconnected && clientport != clientport2)
925 clientport = clientport2;
926 NetConn_CloseClientPorts();
928 if (cl_numsockets == 0)
929 NetConn_OpenClientPorts();
932 if (hostport != sv_netport.integer)
934 hostport = sv_netport.integer;
936 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
940 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout)
942 int originallength = length;
946 if (protocol == PROTOCOL_QUAKEWORLD)
948 int sequence, sequence_ack;
949 int reliable_ack, reliable_message;
953 sequence = LittleLong(*((int *)(data + 0)));
954 sequence_ack = LittleLong(*((int *)(data + 4)));
958 if (conn != cls.netcon)
963 // 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?)
964 qport = LittleShort(*((int *)(data + 8)));
970 reliable_message = (sequence >> 31) & 1;
971 reliable_ack = (sequence_ack >> 31) & 1;
972 sequence &= ~(1<<31);
973 sequence_ack &= ~(1<<31);
974 if (sequence <= conn->qw.incoming_sequence)
976 //Con_DPrint("Got a stale datagram\n");
979 count = sequence - (conn->qw.incoming_sequence + 1);
982 droppedDatagrams += count;
983 //Con_DPrintf("Dropped %u datagram(s)\n", count);
986 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
987 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
988 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
989 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
992 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
993 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
994 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
995 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
996 if (reliable_ack == conn->qw.reliable_sequence)
998 // received, now we will be able to send another reliable message
999 conn->sendMessageLength = 0;
1000 reliableMessagesReceived++;
1002 conn->qw.incoming_sequence = sequence;
1003 if (conn == cls.netcon)
1004 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
1005 conn->qw.incoming_acknowledged = sequence_ack;
1006 conn->qw.incoming_reliable_acknowledged = reliable_ack;
1007 if (reliable_message)
1008 conn->qw.incoming_reliable_sequence ^= 1;
1009 conn->lastMessageTime = realtime;
1010 conn->timeout = realtime + newtimeout;
1011 unreliableMessagesReceived++;
1012 SZ_Clear(&net_message);
1013 SZ_Write(&net_message, data, length);
1021 unsigned int sequence;
1024 qlength = (unsigned int)BigLong(((int *)data)[0]);
1025 flags = qlength & ~NETFLAG_LENGTH_MASK;
1026 qlength &= NETFLAG_LENGTH_MASK;
1027 // control packets were already handled
1028 if (!(flags & NETFLAG_CTL) && qlength == length)
1030 sequence = BigLong(((int *)data)[1]);
1034 if (flags & NETFLAG_UNRELIABLE)
1036 if (sequence >= conn->nq.unreliableReceiveSequence)
1038 if (sequence > conn->nq.unreliableReceiveSequence)
1040 count = sequence - conn->nq.unreliableReceiveSequence;
1041 droppedDatagrams += count;
1042 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1045 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1046 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1047 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1048 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1051 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1052 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1053 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1054 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1055 conn->nq.unreliableReceiveSequence = sequence + 1;
1056 conn->lastMessageTime = realtime;
1057 conn->timeout = realtime + newtimeout;
1058 unreliableMessagesReceived++;
1061 SZ_Clear(&net_message);
1062 SZ_Write(&net_message, data, length);
1068 // Con_DPrint("Got a stale datagram\n");
1071 else if (flags & NETFLAG_ACK)
1073 conn->incoming_acksize[conn->incoming_packetcounter] += originallength;
1074 if (sequence == (conn->nq.sendSequence - 1))
1076 if (sequence == conn->nq.ackSequence)
1078 conn->nq.ackSequence++;
1079 if (conn->nq.ackSequence != conn->nq.sendSequence)
1080 Con_DPrint("ack sequencing error\n");
1081 conn->lastMessageTime = realtime;
1082 conn->timeout = realtime + newtimeout;
1083 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1085 unsigned int packetLen;
1086 unsigned int dataLen;
1088 unsigned int *header;
1090 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1091 memcpy(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1093 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1095 dataLen = conn->sendMessageLength;
1100 dataLen = MAX_PACKETFRAGMENT;
1104 packetLen = NET_HEADERSIZE + dataLen;
1106 header = (unsigned int *)sendbuffer;
1107 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
1108 header[1] = BigLong(conn->nq.sendSequence);
1109 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1111 conn->nq.sendSequence++;
1113 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1115 conn->lastSendTime = realtime;
1120 conn->sendMessageLength = 0;
1123 // Con_DPrint("Duplicate ACK received\n");
1126 // Con_DPrint("Stale ACK received\n");
1129 else if (flags & NETFLAG_DATA)
1131 unsigned int temppacket[2];
1132 conn->incoming_reliablesize[conn->incoming_packetcounter] += originallength;
1133 conn->outgoing_acksize[conn->outgoing_packetcounter] += 8;
1134 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1135 temppacket[1] = BigLong(sequence);
1136 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1137 if (sequence == conn->nq.receiveSequence)
1139 conn->lastMessageTime = realtime;
1140 conn->timeout = realtime + newtimeout;
1141 conn->nq.receiveSequence++;
1142 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1143 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1144 conn->receiveMessageLength += length;
1146 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1147 "Dropping the message!\n", sequence );
1148 conn->receiveMessageLength = 0;
1151 if (flags & NETFLAG_EOM)
1153 reliableMessagesReceived++;
1154 length = conn->receiveMessageLength;
1155 conn->receiveMessageLength = 0;
1158 SZ_Clear(&net_message);
1159 SZ_Write(&net_message, conn->receiveMessage, length);
1166 receivedDuplicateCount++;
1174 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1176 cls.connect_trying = false;
1177 M_Update_Return_Reason("");
1178 // the connection request succeeded, stop current connection and set up a new connection
1180 // if we're connecting to a remote server, shut down any local server
1181 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1182 Host_ShutdownServer ();
1183 // allocate a net connection to keep track of things
1184 cls.netcon = NetConn_Open(mysocket, peeraddress);
1185 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1186 key_dest = key_game;
1188 cls.demonum = -1; // not in the demo loop now
1189 cls.state = ca_connected;
1190 cls.signon = 0; // need all the signon messages before playing
1191 cls.protocol = initialprotocol;
1192 // reset move sequence numbering on this new connection
1193 cls.movesequence = 1;
1194 cls.servermovesequence = 0;
1195 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1196 Cmd_ForwardStringToServer("new");
1197 if (cls.protocol == PROTOCOL_QUAKE)
1199 // write a keepalive (clc_nop) as it seems to greatly improve the
1200 // chances of connecting to a netquake server
1202 unsigned char buf[4];
1203 memset(&msg, 0, sizeof(msg));
1205 msg.maxsize = sizeof(buf);
1206 MSG_WriteChar(&msg, clc_nop);
1207 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000, false);
1211 int NetConn_IsLocalGame(void)
1213 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1218 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1222 serverlist_entry_t *entry;
1224 // search the cache for this server and update it
1225 for (n = 0;n < serverlist_cachecount;n++) {
1226 entry = &serverlist_cache[ n ];
1227 if (!strcmp(addressstring, entry->info.cname))
1231 if (n == serverlist_cachecount)
1233 // LAN search doesnt require an answer from the master server so we wont
1234 // know the ping nor will it be initialized already...
1237 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1240 memset(&entry, 0, sizeof(*entry));
1241 // store the data the engine cares about (address and ping)
1242 strlcpy(entry->info.cname, addressstring, sizeof(entry->info.cname));
1243 entry->info.ping = 100000;
1244 entry->querytime = realtime;
1245 // if not in the slist menu we should print the server to console
1246 if (serverlist_consoleoutput)
1247 Con_Printf("querying %s\n", addressstring);
1248 ++serverlist_cachecount;
1250 // if this is the first reply from this server, count it as having replied
1251 pingtime = (int)((realtime - entry->querytime) * 1000.0 + 0.5);
1252 pingtime = bound(0, pingtime, 9999);
1253 if (!entry->refresh) {
1255 entry->info.ping = min((unsigned) entry->info.ping, pingtime);
1258 entry->info.ping = pingtime;
1259 entry->refresh = false;
1262 // other server info is updated by the caller
1266 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1268 serverlist_entry_t *entry = &serverlist_cache[n];
1269 serverlist_info_t *info = &entry->info;
1270 // update description strings for engine menu and console output
1271 dpsnprintf(entry->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);
1272 dpsnprintf(entry->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);
1273 //if (entry->query == SQS_QUERIED)
1274 ServerList_ViewList_Remove(entry);
1275 // if not in the slist menu we should print the server to console (if wanted)
1276 /*else*/ if( serverlist_consoleoutput )
1277 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1278 // and finally, update the view set
1279 ServerList_ViewList_Insert( entry );
1280 // update the entry's state
1281 serverlist_cache[n].query = SQS_QUERIED;
1284 // returns true, if it's sensible to continue the processing
1285 static qboolean NetConn_ClientParsePacket_ServerList_PrepareQuery( int protocol, const char *ipstring ) {
1287 qboolean refreshing = false;
1288 serverlist_entry_t *entry;
1290 // ignore the rest of the message if the serverlist is full
1291 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1293 // also ignore it if we have already queried it (other master server response)
1294 for( n = 0 ; n < serverlist_cachecount ; n++ )
1295 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1298 entry = &serverlist_cache[n];
1300 if( n < serverlist_cachecount ) {
1301 // the entry has already been queried once or
1305 memset(entry, 0, sizeof(entry));
1306 entry->protocol = protocol;
1307 // store the data the engine cares about (address and ping)
1308 strlcpy (entry->info.cname, ipstring, sizeof(entry->info.cname));
1310 // no, then reset the ping right away
1311 entry->info.ping = -1;
1312 // we also want to increase the serverlist_cachecount then
1313 serverlist_cachecount++;
1316 entry->query = SQS_QUERYING;
1321 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1323 qboolean fromserver;
1324 int ret, c, control;
1326 char *string, addressstring2[128], ipstring[32];
1327 char stringbuf[16384];
1329 // quakeworld ingame packet
1330 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1332 // convert the address to a string incase we need it
1333 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1335 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1337 // received a command string - strip off the packaging and put it
1338 // into our string buffer with NULL termination
1341 length = min(length, (int)sizeof(stringbuf) - 1);
1342 memcpy(stringbuf, data, length);
1343 stringbuf[length] = 0;
1346 if (developer_networking.integer)
1348 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1349 Com_HexDumpToConsole(data, length);
1352 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1354 // darkplaces or quake3
1355 char protocolnames[1400];
1356 Protocol_Names(protocolnames, sizeof(protocolnames));
1357 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1358 M_Update_Return_Reason("Got challenge response");
1359 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1360 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1361 // TODO: add userinfo stuff here instead of using NQ commands?
1362 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1365 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1367 // darkplaces or quake3
1368 M_Update_Return_Reason("Accepted");
1369 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1372 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1374 char rejectreason[32];
1375 cls.connect_trying = false;
1377 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1378 memcpy(rejectreason, string, length);
1379 rejectreason[length] = 0;
1380 M_Update_Return_Reason(rejectreason);
1383 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1385 serverlist_info_t *info;
1389 // search the cache for this server and update it
1390 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1394 info = &serverlist_cache[n].info;
1399 info->protocol = -1;
1400 info->numplayers = 0;
1402 info->maxplayers = 0;
1403 info->gameversion = 0;
1404 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1405 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1406 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1407 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1408 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1409 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1410 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1411 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1412 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1413 info->numhumans = info->numplayers - max(0, info->numbots);
1414 info->freeslots = info->maxplayers - info->numplayers;
1416 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1420 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1422 // Extract the IP addresses
1426 if (serverlist_consoleoutput)
1427 Con_Print("received DarkPlaces server list...\n");
1428 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1430 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1431 if (serverlist_consoleoutput && developer_networking.integer)
1432 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1434 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, ipstring ) ) {
1438 // move on to next address in packet
1442 // begin or resume serverlist queries
1443 serverlist_querysleep = false;
1444 serverlist_querywaittime = realtime + 3;
1447 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1449 // Extract the IP addresses
1453 if (serverlist_consoleoutput)
1454 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1455 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1457 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1458 if (serverlist_consoleoutput && developer_networking.integer)
1459 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1461 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, ipstring ) ) {
1465 // move on to next address in packet
1469 // begin or resume serverlist queries
1470 serverlist_querysleep = false;
1471 serverlist_querywaittime = realtime + 3;
1474 if (!strncmp(string, "extResponse ", 12))
1476 ++net_extresponse_count;
1477 if(net_extresponse_count > NET_EXTRESPONSE_MAX)
1478 net_extresponse_count = NET_EXTRESPONSE_MAX;
1479 net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1480 dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
1483 if (!strncmp(string, "ping", 4))
1485 if (developer.integer >= 10)
1486 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
1487 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1490 if (!strncmp(string, "ack", 3))
1492 // QuakeWorld compatibility
1493 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1495 // challenge message
1496 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1497 M_Update_Return_Reason("Got QuakeWorld challenge response");
1498 cls.qw_qport = qport.integer;
1499 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1500 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1501 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1504 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1507 M_Update_Return_Reason("QuakeWorld Accepted");
1508 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1511 if (length > 2 && !memcmp(string, "n\\", 2))
1513 serverlist_info_t *info;
1517 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1518 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1521 // search the cache for this server and update it
1522 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1526 info = &serverlist_cache[n].info;
1527 strlcpy(info->game, "QuakeWorld", sizeof(info->game));;
1528 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1529 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1530 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1532 info->numplayers = 0; // updated below
1533 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1534 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1536 // count active players on server
1537 // (we could gather more info, but we're just after the number)
1538 s = strchr(string, '\n');
1542 while (s < string + length)
1544 for (;s < string + length && *s != '\n';s++)
1546 if (s >= string + length)
1553 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1557 if (string[0] == 'n')
1560 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1562 // we may not have liked the packet, but it was a command packet, so
1563 // we're done processing this packet now
1566 // quakeworld ingame packet
1567 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1570 CL_ParseServerMessage();
1573 // netquake control packets, supported for compatibility only
1574 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1577 serverlist_info_t *info;
1581 SZ_Clear(&net_message);
1582 SZ_Write(&net_message, data, length);
1588 if (developer.integer >= 10)
1589 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1590 if (cls.connect_trying)
1592 lhnetaddress_t clientportaddress;
1593 clientportaddress = *peeraddress;
1594 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1595 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1596 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1597 M_Update_Return_Reason("Accepted");
1598 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1602 if (developer.integer >= 10)
1603 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1604 cls.connect_trying = false;
1605 M_Update_Return_Reason((char *)MSG_ReadString());
1607 case CCREP_SERVER_INFO:
1608 if (developer.integer >= 10)
1609 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1610 // LordHavoc: because the quake server may report weird addresses
1611 // we just ignore it and keep the real address
1613 // search the cache for this server and update it
1614 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1618 info = &serverlist_cache[n].info;
1619 strlcpy(info->game, "Quake", sizeof(info->game));
1620 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1621 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1622 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1623 info->numplayers = MSG_ReadByte();
1624 info->maxplayers = MSG_ReadByte();
1625 info->protocol = MSG_ReadByte();
1627 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1630 case CCREP_PLAYER_INFO:
1631 // we got a CCREP_PLAYER_INFO??
1632 //if (developer.integer >= 10)
1633 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1635 case CCREP_RULE_INFO:
1636 // we got a CCREP_RULE_INFO??
1637 //if (developer.integer >= 10)
1638 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1643 SZ_Clear(&net_message);
1644 // we may not have liked the packet, but it was a valid control
1645 // packet, so we're done processing this packet now
1649 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1650 CL_ParseServerMessage();
1654 void NetConn_QueryQueueFrame(void)
1660 static double querycounter = 0;
1662 if (serverlist_querysleep)
1665 // apply a cool down time after master server replies,
1666 // to avoid messing up the ping times on the servers
1667 if (serverlist_querywaittime > realtime)
1670 // each time querycounter reaches 1.0 issue a query
1671 querycounter += cl.realframetime * net_slist_queriespersecond.value;
1672 maxqueries = (int)querycounter;
1673 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1674 querycounter -= maxqueries;
1676 if( maxqueries == 0 ) {
1680 // scan serverlist and issue queries as needed
1681 serverlist_querysleep = true;
1683 timeouttime = realtime - net_slist_timeout.value;
1684 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1686 serverlist_entry_t *entry = &serverlist_cache[ index ];
1687 if( entry->query != SQS_QUERYING )
1692 serverlist_querysleep = false;
1693 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1698 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1700 lhnetaddress_t address;
1703 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1704 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1706 for (socket = 0; socket < cl_numsockets ; socket++)
1707 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1711 for (socket = 0; socket < cl_numsockets ; socket++)
1712 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1715 // update the entry fields
1716 entry->querytime = realtime;
1717 entry->querycounter++;
1719 // if not in the slist menu we should print the server to console
1720 if (serverlist_consoleoutput)
1721 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1727 // has this server already been queried once
1728 if( entry->refresh ) {
1729 // yes, so update the reply count (since its not responding anymore)
1732 entry->query = SQS_TIMEDOUT;
1737 void NetConn_ClientFrame(void)
1740 lhnetaddress_t peeraddress;
1741 NetConn_UpdateSockets();
1742 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1744 if (cls.connect_remainingtries == 0)
1745 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1746 cls.connect_nextsendtime = realtime + 1;
1747 cls.connect_remainingtries--;
1748 if (cls.connect_remainingtries <= -10)
1750 cls.connect_trying = false;
1751 M_Update_Return_Reason("Connect: Failed");
1754 // try challenge first (newer DP server or QW)
1755 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1756 // then try netquake as a fallback (old server, or netquake)
1757 SZ_Clear(&net_message);
1758 // save space for the header, filled in later
1759 MSG_WriteLong(&net_message, 0);
1760 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1761 MSG_WriteString(&net_message, "QUAKE");
1762 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1763 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1764 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1765 SZ_Clear(&net_message);
1767 for (i = 0;i < cl_numsockets;i++)
1768 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1769 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1770 NetConn_QueryQueueFrame();
1771 if (cls.netcon && realtime > cls.netcon->timeout && !sv.active)
1773 Con_Print("Connection timed out\n");
1775 Host_ShutdownServer ();
1779 #define MAX_CHALLENGES 128
1782 lhnetaddress_t address;
1786 challenge[MAX_CHALLENGES];
1788 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1792 for (i = 0;i < bufferlength - 1;i++)
1796 c = rand () % (127 - 33) + 33;
1797 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1803 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1805 unsigned int nb_clients = 0, nb_bots = 0, i;
1808 // How many clients are there?
1809 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1811 if (svs.clients[i].active)
1814 if (!svs.clients[i].netconnection)
1819 // TODO: we should add more information for the full status string
1820 length = dpsnprintf(out_msg, out_size,
1821 "\377\377\377\377%s\x0A"
1822 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
1823 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
1826 fullstatus ? "statusResponse" : "infoResponse",
1827 gamename, com_modname, gameversion.integer, svs.maxclients,
1828 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1829 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1830 fullstatus ? "\n" : "");
1832 // Make sure it fits in the buffer
1841 ptr = out_msg + length;
1842 left = (int)out_size - length;
1844 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1846 client_t *cl = &svs.clients[i];
1849 int nameind, cleanind, pingvalue;
1851 char cleanname [sizeof(cl->name)];
1853 // Remove all characters '"' and '\' in the player name
1858 curchar = cl->name[nameind++];
1859 if (curchar != '"' && curchar != '\\')
1861 cleanname[cleanind++] = curchar;
1862 if (cleanind == sizeof(cleanname) - 1)
1865 } while (curchar != '\0');
1867 pingvalue = (int)(cl->ping * 1000.0f);
1868 if(cl->netconnection)
1869 pingvalue = bound(1, pingvalue, 9999);
1872 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1887 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
1889 int floodslotnum, bestfloodslotnum;
1890 double bestfloodtime;
1891 lhnetaddress_t noportpeeraddress;
1892 // see if this is a connect flood
1893 noportpeeraddress = *peeraddress;
1894 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1895 bestfloodslotnum = 0;
1896 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
1897 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1899 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
1901 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
1902 bestfloodslotnum = floodslotnum;
1904 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1906 // this address matches an ongoing flood address
1907 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
1909 // renew the ban on this address so it does not expire
1910 // until the flood has subsided
1911 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
1912 //Con_Printf("Flood detected!\n");
1915 // the flood appears to have subsided, so allow this
1916 bestfloodslotnum = floodslotnum; // reuse the same slot
1920 // begin a new timeout on this address
1921 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
1922 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
1923 //Con_Printf("Flood detection initiated!\n");
1927 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
1930 lhnetaddress_t noportpeeraddress;
1931 // see if this is a connect flood
1932 noportpeeraddress = *peeraddress;
1933 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1934 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1936 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1938 // this address matches an ongoing flood address
1940 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
1941 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
1942 //Con_Printf("Flood cleared!\n");
1947 extern void SV_SendServerinfo (client_t *client);
1948 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1950 int i, ret, clientnum, best;
1953 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
1954 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
1959 // convert the address to a string incase we need it
1960 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1962 // see if we can identify the sender as a local player
1963 // (this is necessary for rcon to send a reliable reply if the client is
1964 // actually on the server, not sending remotely)
1965 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1966 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
1968 if (i == svs.maxclients)
1971 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1973 // received a command string - strip off the packaging and put it
1974 // into our string buffer with NULL termination
1977 length = min(length, (int)sizeof(stringbuf) - 1);
1978 memcpy(stringbuf, data, length);
1979 stringbuf[length] = 0;
1982 if (developer.integer >= 10)
1984 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
1985 Com_HexDumpToConsole(data, length);
1988 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
1990 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
1992 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
1994 if (besttime > challenge[i].time)
1995 besttime = challenge[best = i].time;
1997 // if we did not find an exact match, choose the oldest and
1998 // update address and string
1999 if (i == MAX_CHALLENGES)
2002 challenge[i].address = *peeraddress;
2003 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
2005 challenge[i].time = realtime;
2006 // send the challenge
2007 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
2010 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
2015 if (!(s = SearchInfostring(string, "challenge")))
2017 // validate the challenge
2018 for (i = 0;i < MAX_CHALLENGES;i++)
2019 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
2021 // if the challenge is not recognized, drop the packet
2022 if (i == MAX_CHALLENGES)
2025 // check engine protocol
2026 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
2028 if (developer.integer >= 10)
2029 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
2030 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
2034 // see if this is a duplicate connection request or a disconnected
2035 // client who is rejoining to the same client slot
2036 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2038 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2040 // this is a known client...
2041 if (client->spawned)
2043 // client crashed and is coming back,
2044 // keep their stuff intact
2045 if (developer.integer >= 10)
2046 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2047 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2049 SV_SendServerinfo(client);
2054 // client is still trying to connect,
2055 // so we send a duplicate reply
2056 if (developer.integer >= 10)
2057 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2058 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2064 if (NetConn_PreventConnectFlood(peeraddress))
2067 // find an empty client slot for this new client
2068 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2071 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2073 // allocated connection
2074 if (developer.integer >= 10)
2075 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2076 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2077 // now set up the client
2079 SV_ConnectClient(clientnum, conn);
2081 NetConn_Heartbeat(1);
2086 // no empty slots found - server is full
2087 if (developer.integer >= 10)
2088 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2089 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2093 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2095 const char *challenge = NULL;
2097 // If there was a challenge in the getinfo message
2098 if (length > 8 && string[7] == ' ')
2099 challenge = string + 8;
2101 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2103 if (developer.integer >= 10)
2104 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
2105 NetConn_WriteString(mysocket, response, peeraddress);
2109 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2111 const char *challenge = NULL;
2113 // If there was a challenge in the getinfo message
2114 if (length > 10 && string[9] == ' ')
2115 challenge = string + 10;
2117 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2119 if (developer.integer >= 10)
2120 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
2121 NetConn_WriteString(mysocket, response, peeraddress);
2125 if (length >= 5 && !memcmp(string, "rcon ", 5))
2128 char *s = string + 5;
2129 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2131 for (i = 0;*s > ' ';s++)
2132 if (i < (int)sizeof(password) - 1)
2134 if(*s <= ' ' && s != endpos) // skip leading ugly space
2137 if (password[0] > ' ' && !strcmp(rcon_password.string, password))
2139 // looks like a legitimate rcon command with the correct password
2141 Con_Printf("server received rcon command from %s:\n", host_client ? host_client->name : addressstring2);
2142 while(s_ptr != endpos)
2144 size_t l = strlen(s_ptr);
2146 Con_Printf(" %s;", s_ptr);
2150 rcon_redirect = true;
2151 rcon_redirect_bufferpos = 0;
2154 size_t l = strlen(s);
2156 Cmd_ExecuteString(s, src_command);
2159 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
2160 rcon_redirect = false;
2161 // print resulting text to client
2162 // if client is playing, send a reliable reply instead of
2166 // if the netconnection is loop, then this is the
2167 // local player on a listen mode server, and it would
2168 // result in duplicate printing to the console
2169 // (not that the local player should be using rcon
2170 // when they have the console)
2171 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2172 SV_ClientPrintf("%s", rcon_redirect_buffer);
2177 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
2178 NetConn_WriteString(mysocket, response, peeraddress);
2183 if (!strncmp(string, "ping", 4))
2185 if (developer.integer >= 10)
2186 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
2187 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2190 if (!strncmp(string, "ack", 3))
2192 // we may not have liked the packet, but it was a command packet, so
2193 // we're done processing this packet now
2196 // netquake control packets, supported for compatibility only, and only
2197 // when running game protocols that are normally served via this connection
2199 // (this protects more modern protocols against being used for
2200 // Quake packet flood Denial Of Service attacks)
2201 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_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3))
2205 const char *protocolname;
2208 SZ_Clear(&net_message);
2209 SZ_Write(&net_message, data, length);
2215 if (developer.integer >= 10)
2216 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2217 if(!islocal && sv_public.integer <= -2)
2220 protocolname = MSG_ReadString();
2221 protocolnumber = MSG_ReadByte();
2222 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2224 if (developer.integer >= 10)
2225 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
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_REJECT);
2230 MSG_WriteString(&net_message, "Incompatible version.\n");
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);
2237 // see if this connect request comes from a known client
2238 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2240 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2242 // this is either a duplicate connection request
2243 // or coming back from a timeout
2244 // (if so, keep their stuff intact)
2247 if (developer.integer >= 10)
2248 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2249 SZ_Clear(&net_message);
2250 // save space for the header, filled in later
2251 MSG_WriteLong(&net_message, 0);
2252 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2253 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2254 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2255 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2256 SZ_Clear(&net_message);
2258 // if client is already spawned, re-send the
2259 // serverinfo message as they'll need it to play
2260 if (client->spawned)
2263 SV_SendServerinfo(client);
2270 // this is a new client, check for connection flood
2271 if (NetConn_PreventConnectFlood(peeraddress))
2274 // find a slot for the new client
2275 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2278 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2280 // connect to the client
2281 // everything is allocated, just fill in the details
2282 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2283 if (developer.integer >= 10)
2284 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2285 // send back the info about the server connection
2286 SZ_Clear(&net_message);
2287 // save space for the header, filled in later
2288 MSG_WriteLong(&net_message, 0);
2289 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2290 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2291 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2292 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2293 SZ_Clear(&net_message);
2294 // now set up the client struct
2296 SV_ConnectClient(clientnum, conn);
2298 NetConn_Heartbeat(1);
2303 if (developer.integer >= 10)
2304 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2305 // no room; try to let player know
2306 SZ_Clear(&net_message);
2307 // save space for the header, filled in later
2308 MSG_WriteLong(&net_message, 0);
2309 MSG_WriteByte(&net_message, CCREP_REJECT);
2310 MSG_WriteString(&net_message, "Server is full.\n");
2311 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2312 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2313 SZ_Clear(&net_message);
2315 case CCREQ_SERVER_INFO:
2316 if (developer.integer >= 10)
2317 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2318 if(!islocal && sv_public.integer <= -1)
2320 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2323 char myaddressstring[128];
2324 if (developer.integer >= 10)
2325 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2326 SZ_Clear(&net_message);
2327 // save space for the header, filled in later
2328 MSG_WriteLong(&net_message, 0);
2329 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2330 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2331 MSG_WriteString(&net_message, myaddressstring);
2332 MSG_WriteString(&net_message, hostname.string);
2333 MSG_WriteString(&net_message, sv.name);
2334 // How many clients are there?
2335 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2336 if (svs.clients[i].active)
2338 MSG_WriteByte(&net_message, numclients);
2339 MSG_WriteByte(&net_message, svs.maxclients);
2340 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2341 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2342 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2343 SZ_Clear(&net_message);
2346 case CCREQ_PLAYER_INFO:
2347 if (developer.integer >= 10)
2348 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2349 if(!islocal && sv_public.integer <= -1)
2353 int playerNumber, activeNumber, clientNumber;
2356 playerNumber = MSG_ReadByte();
2358 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2359 if (client->active && ++activeNumber == playerNumber)
2361 if (clientNumber != svs.maxclients)
2363 SZ_Clear(&net_message);
2364 // save space for the header, filled in later
2365 MSG_WriteLong(&net_message, 0);
2366 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2367 MSG_WriteByte(&net_message, playerNumber);
2368 MSG_WriteString(&net_message, client->name);
2369 MSG_WriteLong(&net_message, client->colors);
2370 MSG_WriteLong(&net_message, client->frags);
2371 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2372 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2373 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2374 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2375 SZ_Clear(&net_message);
2379 case CCREQ_RULE_INFO:
2380 if (developer.integer >= 10)
2381 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2382 if(!islocal && sv_public.integer <= -1)
2389 // find the search start location
2390 prevCvarName = MSG_ReadString();
2391 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2393 // send the response
2394 SZ_Clear(&net_message);
2395 // save space for the header, filled in later
2396 MSG_WriteLong(&net_message, 0);
2397 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2400 MSG_WriteString(&net_message, var->name);
2401 MSG_WriteString(&net_message, var->string);
2403 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2404 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2405 SZ_Clear(&net_message);
2411 SZ_Clear(&net_message);
2412 // we may not have liked the packet, but it was a valid control
2413 // packet, so we're done processing this packet now
2418 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
2421 SV_ReadClientMessage();
2429 void NetConn_ServerFrame(void)
2432 lhnetaddress_t peeraddress;
2433 for (i = 0;i < sv_numsockets;i++)
2434 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2435 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2436 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2438 // never timeout loopback connections
2439 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2441 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2443 SV_DropClient(false);
2449 void NetConn_SleepMicroseconds(int microseconds)
2451 LHNET_SleepUntilPacket_Microseconds(microseconds);
2454 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
2458 lhnetaddress_t masteraddress;
2459 lhnetaddress_t broadcastaddress;
2462 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2465 // 26000 is the default quake server port, servers on other ports will not
2467 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2468 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2472 for (i = 0;i < cl_numsockets;i++)
2476 // search LAN for Quake servers
2477 SZ_Clear(&net_message);
2478 // save space for the header, filled in later
2479 MSG_WriteLong(&net_message, 0);
2480 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2481 MSG_WriteString(&net_message, "QUAKE");
2482 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2483 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2484 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2485 SZ_Clear(&net_message);
2487 // search LAN for DarkPlaces servers
2488 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2490 // build the getservers message to send to the dpmaster master servers
2491 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2494 for (masternum = 0;sv_masters[masternum].name;masternum++)
2496 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])))
2499 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2506 // only query QuakeWorld servers when the user wants to
2509 for (i = 0;i < cl_numsockets;i++)
2513 // search LAN for QuakeWorld servers
2514 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
2516 // build the getservers message to send to the qwmaster master servers
2517 // note this has no -1 prefix, and the trailing nul byte is sent
2518 dpsnprintf(request, sizeof(request), "c\n");
2521 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2523 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2525 if (m_state != m_slist)
2527 char lookupstring[128];
2528 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
2529 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
2532 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
2538 if (!masterquerycount)
2540 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2541 M_Update_Return_Reason("No network");
2545 void NetConn_Heartbeat(int priority)
2547 lhnetaddress_t masteraddress;
2549 lhnetsocket_t *mysocket;
2551 // if it's a state change (client connected), limit next heartbeat to no
2552 // more than 30 sec in the future
2553 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2554 nextheartbeattime = realtime + 30.0;
2556 // limit heartbeatperiod to 30 to 270 second range,
2557 // lower limit is to avoid abusing master servers with excess traffic,
2558 // upper limit is to avoid timing out on the master server (which uses
2560 if (sv_heartbeatperiod.value < 30)
2561 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2562 if (sv_heartbeatperiod.value > 270)
2563 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2565 // make advertising optional and don't advertise singleplayer games, and
2566 // only send a heartbeat as often as the admin wants
2567 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2569 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2570 for (masternum = 0;sv_masters[masternum].name;masternum++)
2571 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2572 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2576 static void Net_Heartbeat_f(void)
2579 NetConn_Heartbeat(2);
2581 Con_Print("No server running, can not heartbeat to master server.\n");
2584 void PrintStats(netconn_t *conn)
2586 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2587 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2589 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2592 void Net_Stats_f(void)
2595 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2596 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2597 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2598 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2599 Con_Printf("packetsSent = %i\n", packetsSent);
2600 Con_Printf("packetsReSent = %i\n", packetsReSent);
2601 Con_Printf("packetsReceived = %i\n", packetsReceived);
2602 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2603 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2604 Con_Print("connections =\n");
2605 for (conn = netconn_list;conn;conn = conn->next)
2609 void Net_Refresh_f(void)
2611 if (m_state != m_slist) {
2612 Con_Print("Sending new requests to master servers\n");
2613 ServerList_QueryList(false, true, false, true);
2614 Con_Print("Listening for replies...\n");
2616 ServerList_QueryList(false, true, false, false);
2619 void Net_Slist_f(void)
2621 ServerList_ResetMasks();
2622 serverlist_sortbyfield = SLIF_PING;
2623 serverlist_sortdescending = false;
2624 if (m_state != m_slist) {
2625 Con_Print("Sending requests to master servers\n");
2626 ServerList_QueryList(true, true, false, true);
2627 Con_Print("Listening for replies...\n");
2629 ServerList_QueryList(true, true, false, false);
2632 void Net_SlistQW_f(void)
2634 ServerList_ResetMasks();
2635 serverlist_sortbyfield = SLIF_PING;
2636 serverlist_sortdescending = false;
2637 if (m_state != m_slist) {
2638 Con_Print("Sending requests to master servers\n");
2639 ServerList_QueryList(true, false, true, true);
2640 serverlist_consoleoutput = true;
2641 Con_Print("Listening for replies...\n");
2643 ServerList_QueryList(true, false, true, false);
2646 void NetConn_Init(void)
2649 lhnetaddress_t tempaddress;
2650 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2651 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2652 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
2653 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
2654 Cmd_AddCommand("net_refresh", Net_Refresh_f, "query dp master servers and refresh all server information");
2655 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2656 Cvar_RegisterVariable(&net_slist_queriespersecond);
2657 Cvar_RegisterVariable(&net_slist_queriesperframe);
2658 Cvar_RegisterVariable(&net_slist_timeout);
2659 Cvar_RegisterVariable(&net_slist_maxtries);
2660 Cvar_RegisterVariable(&net_messagetimeout);
2661 Cvar_RegisterVariable(&net_connecttimeout);
2662 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
2663 Cvar_RegisterVariable(&cl_netlocalping);
2664 Cvar_RegisterVariable(&cl_netpacketloss_send);
2665 Cvar_RegisterVariable(&cl_netpacketloss_receive);
2666 Cvar_RegisterVariable(&hostname);
2667 Cvar_RegisterVariable(&developer_networking);
2668 Cvar_RegisterVariable(&cl_netport);
2669 Cvar_RegisterVariable(&sv_netport);
2670 Cvar_RegisterVariable(&net_address);
2671 //Cvar_RegisterVariable(&net_address_ipv6);
2672 Cvar_RegisterVariable(&sv_public);
2673 Cvar_RegisterVariable(&sv_heartbeatperiod);
2674 for (i = 0;sv_masters[i].name;i++)
2675 Cvar_RegisterVariable(&sv_masters[i]);
2676 Cvar_RegisterVariable(&gameversion);
2677 // 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.
2678 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2680 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2682 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
2683 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2686 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2688 // 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
2689 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2691 i = atoi(com_argv[i + 1]);
2692 if (i >= 0 && i < 65536)
2694 Con_Printf("-port option used, setting port cvar to %i\n", i);
2695 Cvar_SetValueQuick(&sv_netport, i);
2698 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2702 net_message.data = net_message_buf;
2703 net_message.maxsize = sizeof(net_message_buf);
2704 net_message.cursize = 0;
2708 void NetConn_Shutdown(void)
2710 NetConn_CloseClientPorts();
2711 NetConn_CloseServerPorts();