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 serverlist_entry_t *entry = &serverlist_cache[i];
396 // also display entries that are currently being refreshed [11/8/2007 Black]
397 if( entry->query == SQS_QUERIED || entry->query == SQS_REFRESHING )
398 ServerList_ViewList_Insert( entry );
402 void ServerList_ResetMasks(void)
406 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
407 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
408 // numbots needs to be compared to -1 to always succeed
409 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
410 serverlist_andmasks[i].info.numbots = -1;
411 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
412 serverlist_ormasks[i].info.numbots = -1;
416 static void _ServerList_Test(void)
419 for( i = 0 ; i < 1024 ; i++ ) {
420 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
421 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
422 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
423 serverlist_cache[serverlist_cachecount].finished = true;
424 sprintf( serverlist_cache[serverlist_cachecount].line1, "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
425 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
426 serverlist_cachecount++;
431 void ServerList_QueryList(qboolean resetcache, qboolean querydp, qboolean queryqw, qboolean consoleoutput)
433 masterquerytime = realtime;
434 masterquerycount = 0;
435 masterreplycount = 0;
437 serverquerycount = 0;
438 serverreplycount = 0;
439 serverlist_cachecount = 0;
440 serverlist_viewcount = 0;
442 // refresh all entries
444 for( n = 0 ; n < serverlist_cachecount ; n++ ) {
445 serverlist_entry_t *entry = &serverlist_cache[ n ];
446 entry->query = SQS_REFRESHING;
447 entry->querycounter = 0;
450 serverlist_consoleoutput = consoleoutput;
452 //_ServerList_Test();
454 NetConn_QueryMasters(querydp, queryqw);
459 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
461 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
465 if (cl_netpacketloss_receive.integer)
466 for (i = 0;i < cl_numsockets;i++)
467 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer)
469 if (developer_networking.integer)
471 char addressstring[128], addressstring2[128];
472 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
475 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
476 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", mysocket, addressstring, data, maxlength, peeraddress, length, addressstring2);
477 Com_HexDumpToConsole((unsigned char *)data, length);
480 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", mysocket, addressstring, data, maxlength, peeraddress, length);
485 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
489 if (cl_netpacketloss_send.integer)
490 for (i = 0;i < cl_numsockets;i++)
491 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer)
493 ret = LHNET_Write(mysocket, data, length, peeraddress);
494 if (developer_networking.integer)
496 char addressstring[128], addressstring2[128];
497 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
498 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
499 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", mysocket, addressstring, data, length, peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
500 Com_HexDumpToConsole((unsigned char *)data, length);
505 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
507 // note this does not include the trailing NULL because we add that in the parser
508 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
511 qboolean NetConn_CanSend(netconn_t *conn)
513 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
514 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
515 conn->outgoing_reliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
516 conn->outgoing_acksize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
517 if (realtime > conn->cleartime)
521 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_CHOKEDPACKET;
526 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate, qboolean quakesignon_suppressreliables)
530 // if this packet was supposedly choked, but we find ourselves sending one
531 // anyway, make sure the size counting starts at zero
532 // (this mostly happens on level changes and disconnects and such)
533 if (conn->outgoing_unreliablesize[conn->outgoing_packetcounter] == NETGRAPH_CHOKEDPACKET)
534 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
536 if (protocol == PROTOCOL_QUAKEWORLD)
539 qboolean sendreliable;
541 // note that it is ok to send empty messages to the qw server,
542 // otherwise it won't respond to us at all
544 sendreliable = false;
545 // if the remote side dropped the last reliable message, resend it
546 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
548 // if the reliable transmit buffer is empty, copy the current message out
549 if (!conn->sendMessageLength && conn->message.cursize)
551 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
552 conn->sendMessageLength = conn->message.cursize;
553 SZ_Clear(&conn->message); // clear the message buffer
554 conn->qw.reliable_sequence ^= 1;
557 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
558 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->qw.outgoing_sequence | ((unsigned int)sendreliable<<31));
559 // last received unreliable packet number, and last received reliable packet number (0 or 1)
560 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
562 conn->qw.outgoing_sequence++;
563 // client sends qport in every packet
564 if (conn == cls.netcon)
566 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
568 // also update cls.qw_outgoing_sequence
569 cls.qw_outgoing_sequence = conn->qw.outgoing_sequence;
571 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
573 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
577 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
579 // add the reliable message if there is one
582 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += conn->sendMessageLength;
583 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
584 packetLen += conn->sendMessageLength;
585 conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence;
588 // add the unreliable message if possible
589 if (packetLen + data->cursize <= 1400)
591 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += data->cursize;
592 memcpy(sendbuffer + packetLen, data->data, data->cursize);
593 packetLen += data->cursize;
596 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
599 unreliableMessagesSent++;
601 totallen += packetLen + 28;
605 unsigned int packetLen;
606 unsigned int dataLen;
608 unsigned int *header;
610 // if a reliable message fragment has been lost, send it again
611 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
613 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
615 dataLen = conn->sendMessageLength;
620 dataLen = MAX_PACKETFRAGMENT;
624 packetLen = NET_HEADERSIZE + dataLen;
626 header = (unsigned int *)sendbuffer;
627 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
628 header[1] = BigLong(conn->nq.sendSequence - 1);
629 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
631 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
633 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
635 conn->lastSendTime = realtime;
639 totallen += packetLen + 28;
642 // if we have a new reliable message to send, do so
643 if (!conn->sendMessageLength && conn->message.cursize && !quakesignon_suppressreliables)
645 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
647 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
648 conn->message.overflowed = true;
652 if (developer_networking.integer && conn == cls.netcon)
654 Con_Print("client sending reliable message to server:\n");
655 SZ_HexDumpToConsole(&conn->message);
658 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
659 conn->sendMessageLength = conn->message.cursize;
660 SZ_Clear(&conn->message);
662 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
664 dataLen = conn->sendMessageLength;
669 dataLen = MAX_PACKETFRAGMENT;
673 packetLen = NET_HEADERSIZE + dataLen;
675 header = (unsigned int *)sendbuffer;
676 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
677 header[1] = BigLong(conn->nq.sendSequence);
678 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
680 conn->nq.sendSequence++;
682 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
684 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
686 conn->lastSendTime = realtime;
688 reliableMessagesSent++;
690 totallen += packetLen + 28;
693 // if we have an unreliable message to send, do so
696 packetLen = NET_HEADERSIZE + data->cursize;
698 if (packetLen > (int)sizeof(sendbuffer))
700 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
704 header = (unsigned int *)sendbuffer;
705 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
706 header[1] = BigLong(conn->nq.unreliableSendSequence);
707 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
709 conn->nq.unreliableSendSequence++;
711 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
713 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
716 unreliableMessagesSent++;
718 totallen += packetLen + 28;
722 // delay later packets to obey rate limit
723 if (conn->cleartime < realtime - 0.1)
724 conn->cleartime = realtime - 0.1;
725 conn->cleartime = conn->cleartime + (double)totallen / (double)rate;
726 if (conn->cleartime < realtime)
727 conn->cleartime = realtime;
732 qboolean NetConn_HaveClientPorts(void)
734 return !!cl_numsockets;
737 qboolean NetConn_HaveServerPorts(void)
739 return !!sv_numsockets;
742 void NetConn_CloseClientPorts(void)
744 for (;cl_numsockets > 0;cl_numsockets--)
745 if (cl_sockets[cl_numsockets - 1])
746 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
749 void NetConn_OpenClientPort(const char *addressstring, int defaultport)
751 lhnetaddress_t address;
753 char addressstring2[1024];
754 if (LHNETADDRESS_FromString(&address, addressstring, defaultport))
756 if ((s = LHNET_OpenSocket_Connectionless(&address)))
758 cl_sockets[cl_numsockets++] = s;
759 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
760 Con_Printf("Client opened a socket on address %s\n", addressstring2);
764 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
765 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
769 Con_Printf("Client unable to parse address %s\n", addressstring);
772 void NetConn_OpenClientPorts(void)
775 NetConn_CloseClientPorts();
776 port = bound(0, cl_netport.integer, 65535);
777 if (cl_netport.integer != port)
778 Cvar_SetValueQuick(&cl_netport, port);
779 Con_Printf("Client using port %i\n", port);
780 NetConn_OpenClientPort("local:2", 0);
781 NetConn_OpenClientPort(net_address.string, port);
782 //NetConn_OpenClientPort(net_address_ipv6.string, port);
785 void NetConn_CloseServerPorts(void)
787 for (;sv_numsockets > 0;sv_numsockets--)
788 if (sv_sockets[sv_numsockets - 1])
789 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
792 void NetConn_OpenServerPort(const char *addressstring, int defaultport)
794 lhnetaddress_t address;
797 char addressstring2[1024];
799 for (port = defaultport; port <= defaultport + 100; port++)
801 if (LHNETADDRESS_FromString(&address, addressstring, port))
803 if ((s = LHNET_OpenSocket_Connectionless(&address)))
805 sv_sockets[sv_numsockets++] = s;
806 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
807 Con_Printf("Server listening on address %s\n", addressstring2);
812 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
813 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
818 Con_Printf("Server unable to parse address %s\n", addressstring);
819 // if it cant parse one address, it wont be able to parse another for sure
825 void NetConn_OpenServerPorts(int opennetports)
828 NetConn_CloseServerPorts();
829 NetConn_UpdateSockets();
830 port = bound(0, sv_netport.integer, 65535);
833 Con_Printf("Server using port %i\n", port);
834 if (sv_netport.integer != port)
835 Cvar_SetValueQuick(&sv_netport, port);
836 if (cls.state != ca_dedicated)
837 NetConn_OpenServerPort("local:1", 0);
840 NetConn_OpenServerPort(net_address.string, port);
841 //NetConn_OpenServerPort(net_address_ipv6.string, port);
843 if (sv_numsockets == 0)
844 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
847 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
849 int i, a = LHNETADDRESS_GetAddressType(address);
850 for (i = 0;i < cl_numsockets;i++)
851 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
852 return cl_sockets[i];
856 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
858 int i, a = LHNETADDRESS_GetAddressType(address);
859 for (i = 0;i < sv_numsockets;i++)
860 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
861 return sv_sockets[i];
865 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
868 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
869 conn->mysocket = mysocket;
870 conn->peeraddress = *peeraddress;
871 conn->lastMessageTime = realtime;
872 conn->message.data = conn->messagedata;
873 conn->message.maxsize = sizeof(conn->messagedata);
874 conn->message.cursize = 0;
875 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
876 // reduce effectiveness of connection request floods
877 conn->timeout = realtime + net_connecttimeout.value;
878 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
879 conn->next = netconn_list;
884 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress);
885 void NetConn_Close(netconn_t *conn)
888 // remove connection from list
890 // allow the client to reconnect immediately
891 NetConn_ClearConnectFlood(&(conn->peeraddress));
893 if (conn == netconn_list)
894 netconn_list = conn->next;
897 for (c = netconn_list;c;c = c->next)
901 c->next = conn->next;
905 // not found in list, we'll avoid crashing here...
913 static int clientport = -1;
914 static int clientport2 = -1;
915 static int hostport = -1;
916 void NetConn_UpdateSockets(void)
918 if (cls.state != ca_dedicated)
920 if (clientport2 != cl_netport.integer)
922 clientport2 = cl_netport.integer;
923 if (cls.state == ca_connected)
924 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
926 if (cls.state == ca_disconnected && clientport != clientport2)
928 clientport = clientport2;
929 NetConn_CloseClientPorts();
931 if (cl_numsockets == 0)
932 NetConn_OpenClientPorts();
935 if (hostport != sv_netport.integer)
937 hostport = sv_netport.integer;
939 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
943 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout)
945 int originallength = length;
949 if (protocol == PROTOCOL_QUAKEWORLD)
951 int sequence, sequence_ack;
952 int reliable_ack, reliable_message;
956 sequence = LittleLong(*((int *)(data + 0)));
957 sequence_ack = LittleLong(*((int *)(data + 4)));
961 if (conn != cls.netcon)
966 // 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?)
967 qport = LittleShort(*((int *)(data + 8)));
973 reliable_message = (sequence >> 31) & 1;
974 reliable_ack = (sequence_ack >> 31) & 1;
975 sequence &= ~(1<<31);
976 sequence_ack &= ~(1<<31);
977 if (sequence <= conn->qw.incoming_sequence)
979 //Con_DPrint("Got a stale datagram\n");
982 count = sequence - (conn->qw.incoming_sequence + 1);
985 droppedDatagrams += count;
986 //Con_DPrintf("Dropped %u datagram(s)\n", count);
989 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
990 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
991 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
992 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
995 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
996 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
997 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
998 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
999 if (reliable_ack == conn->qw.reliable_sequence)
1001 // received, now we will be able to send another reliable message
1002 conn->sendMessageLength = 0;
1003 reliableMessagesReceived++;
1005 conn->qw.incoming_sequence = sequence;
1006 if (conn == cls.netcon)
1007 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
1008 conn->qw.incoming_acknowledged = sequence_ack;
1009 conn->qw.incoming_reliable_acknowledged = reliable_ack;
1010 if (reliable_message)
1011 conn->qw.incoming_reliable_sequence ^= 1;
1012 conn->lastMessageTime = realtime;
1013 conn->timeout = realtime + newtimeout;
1014 unreliableMessagesReceived++;
1015 SZ_Clear(&net_message);
1016 SZ_Write(&net_message, data, length);
1024 unsigned int sequence;
1027 qlength = (unsigned int)BigLong(((int *)data)[0]);
1028 flags = qlength & ~NETFLAG_LENGTH_MASK;
1029 qlength &= NETFLAG_LENGTH_MASK;
1030 // control packets were already handled
1031 if (!(flags & NETFLAG_CTL) && qlength == length)
1033 sequence = BigLong(((int *)data)[1]);
1037 if (flags & NETFLAG_UNRELIABLE)
1039 if (sequence >= conn->nq.unreliableReceiveSequence)
1041 if (sequence > conn->nq.unreliableReceiveSequence)
1043 count = sequence - conn->nq.unreliableReceiveSequence;
1044 droppedDatagrams += count;
1045 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1048 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1049 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1050 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1051 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1054 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1055 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1056 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1057 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1058 conn->nq.unreliableReceiveSequence = sequence + 1;
1059 conn->lastMessageTime = realtime;
1060 conn->timeout = realtime + newtimeout;
1061 unreliableMessagesReceived++;
1064 SZ_Clear(&net_message);
1065 SZ_Write(&net_message, data, length);
1071 // Con_DPrint("Got a stale datagram\n");
1074 else if (flags & NETFLAG_ACK)
1076 conn->incoming_acksize[conn->incoming_packetcounter] += originallength;
1077 if (sequence == (conn->nq.sendSequence - 1))
1079 if (sequence == conn->nq.ackSequence)
1081 conn->nq.ackSequence++;
1082 if (conn->nq.ackSequence != conn->nq.sendSequence)
1083 Con_DPrint("ack sequencing error\n");
1084 conn->lastMessageTime = realtime;
1085 conn->timeout = realtime + newtimeout;
1086 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1088 unsigned int packetLen;
1089 unsigned int dataLen;
1091 unsigned int *header;
1093 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1094 memmove(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1096 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1098 dataLen = conn->sendMessageLength;
1103 dataLen = MAX_PACKETFRAGMENT;
1107 packetLen = NET_HEADERSIZE + dataLen;
1109 header = (unsigned int *)sendbuffer;
1110 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
1111 header[1] = BigLong(conn->nq.sendSequence);
1112 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1114 conn->nq.sendSequence++;
1116 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1118 conn->lastSendTime = realtime;
1123 conn->sendMessageLength = 0;
1126 // Con_DPrint("Duplicate ACK received\n");
1129 // Con_DPrint("Stale ACK received\n");
1132 else if (flags & NETFLAG_DATA)
1134 unsigned int temppacket[2];
1135 conn->incoming_reliablesize[conn->incoming_packetcounter] += originallength;
1136 conn->outgoing_acksize[conn->outgoing_packetcounter] += 8;
1137 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1138 temppacket[1] = BigLong(sequence);
1139 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1140 if (sequence == conn->nq.receiveSequence)
1142 conn->lastMessageTime = realtime;
1143 conn->timeout = realtime + newtimeout;
1144 conn->nq.receiveSequence++;
1145 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1146 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1147 conn->receiveMessageLength += length;
1149 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1150 "Dropping the message!\n", sequence );
1151 conn->receiveMessageLength = 0;
1154 if (flags & NETFLAG_EOM)
1156 reliableMessagesReceived++;
1157 length = conn->receiveMessageLength;
1158 conn->receiveMessageLength = 0;
1161 SZ_Clear(&net_message);
1162 SZ_Write(&net_message, conn->receiveMessage, length);
1169 receivedDuplicateCount++;
1177 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1179 cls.connect_trying = false;
1180 M_Update_Return_Reason("");
1181 // the connection request succeeded, stop current connection and set up a new connection
1183 // if we're connecting to a remote server, shut down any local server
1184 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1185 Host_ShutdownServer ();
1186 // allocate a net connection to keep track of things
1187 cls.netcon = NetConn_Open(mysocket, peeraddress);
1188 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1189 key_dest = key_game;
1191 cls.demonum = -1; // not in the demo loop now
1192 cls.state = ca_connected;
1193 cls.signon = 0; // need all the signon messages before playing
1194 cls.protocol = initialprotocol;
1195 // reset move sequence numbering on this new connection
1196 cls.movesequence = 1;
1197 cls.servermovesequence = 0;
1198 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1199 Cmd_ForwardStringToServer("new");
1200 if (cls.protocol == PROTOCOL_QUAKE)
1202 // write a keepalive (clc_nop) as it seems to greatly improve the
1203 // chances of connecting to a netquake server
1205 unsigned char buf[4];
1206 memset(&msg, 0, sizeof(msg));
1208 msg.maxsize = sizeof(buf);
1209 MSG_WriteChar(&msg, clc_nop);
1210 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000, false);
1214 int NetConn_IsLocalGame(void)
1216 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1221 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1225 serverlist_entry_t *entry = NULL;
1227 // search the cache for this server and update it
1228 for (n = 0;n < serverlist_cachecount;n++) {
1229 entry = &serverlist_cache[ n ];
1230 if (!strcmp(addressstring, entry->info.cname))
1234 if (n == serverlist_cachecount)
1236 // LAN search doesnt require an answer from the master server so we wont
1237 // know the ping nor will it be initialized already...
1240 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1243 entry = &serverlist_cache[n];
1245 memset(entry, 0, sizeof(*entry));
1246 // store the data the engine cares about (address and ping)
1247 strlcpy(entry->info.cname, addressstring, sizeof(entry->info.cname));
1248 entry->info.ping = 100000;
1249 entry->querytime = realtime;
1250 // if not in the slist menu we should print the server to console
1251 if (serverlist_consoleoutput)
1252 Con_Printf("querying %s\n", addressstring);
1253 ++serverlist_cachecount;
1255 // if this is the first reply from this server, count it as having replied
1256 pingtime = (int)((realtime - entry->querytime) * 1000.0 + 0.5);
1257 pingtime = bound(0, pingtime, 9999);
1258 if (entry->query == SQS_REFRESHING) {
1259 entry->info.ping = pingtime;
1260 entry->query = SQS_QUERIED;
1262 // convert to unsigned to catch the -1
1263 // I still dont like this but its better than the old 10000 magic ping number - as in easier to type and read :( [11/8/2007 Black]
1264 entry->info.ping = min((unsigned) entry->info.ping, (unsigned) pingtime);
1268 // other server info is updated by the caller
1272 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1274 serverlist_entry_t *entry = &serverlist_cache[n];
1275 serverlist_info_t *info = &entry->info;
1276 // update description strings for engine menu and console output
1277 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);
1278 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);
1279 if (entry->query == SQS_QUERIED)
1280 ServerList_ViewList_Remove(entry);
1281 // if not in the slist menu we should print the server to console (if wanted)
1282 else if( serverlist_consoleoutput )
1283 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1284 // and finally, update the view set
1285 ServerList_ViewList_Insert( entry );
1286 // update the entry's state
1287 serverlist_cache[n].query = SQS_QUERIED;
1290 // returns true, if it's sensible to continue the processing
1291 static qboolean NetConn_ClientParsePacket_ServerList_PrepareQuery( int protocol, const char *ipstring ) {
1293 serverlist_entry_t *entry;
1295 // ignore the rest of the message if the serverlist is full
1296 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1298 // also ignore it if we have already queried it (other master server response)
1299 for( n = 0 ; n < serverlist_cachecount ; n++ )
1300 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1303 entry = &serverlist_cache[n];
1305 if( n < serverlist_cachecount ) {
1306 // the entry has already been queried once or
1310 memset(entry, 0, sizeof(entry));
1311 entry->protocol = protocol;
1312 // store the data the engine cares about (address and ping)
1313 strlcpy (entry->info.cname, ipstring, sizeof(entry->info.cname));
1315 // no, then reset the ping right away
1316 entry->info.ping = -1;
1317 // we also want to increase the serverlist_cachecount then
1318 serverlist_cachecount++;
1321 entry->query = SQS_QUERYING;
1326 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1328 qboolean fromserver;
1329 int ret, c, control;
1331 char *string, addressstring2[128], ipstring[32];
1332 char stringbuf[16384];
1334 // quakeworld ingame packet
1335 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1337 // convert the address to a string incase we need it
1338 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1340 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1342 // received a command string - strip off the packaging and put it
1343 // into our string buffer with NULL termination
1346 length = min(length, (int)sizeof(stringbuf) - 1);
1347 memcpy(stringbuf, data, length);
1348 stringbuf[length] = 0;
1351 if (developer_networking.integer)
1353 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1354 Com_HexDumpToConsole(data, length);
1357 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1359 // darkplaces or quake3
1360 char protocolnames[1400];
1361 Protocol_Names(protocolnames, sizeof(protocolnames));
1362 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1363 M_Update_Return_Reason("Got challenge response");
1364 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1365 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1366 // TODO: add userinfo stuff here instead of using NQ commands?
1367 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1370 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1372 // darkplaces or quake3
1373 M_Update_Return_Reason("Accepted");
1374 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1377 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1379 char rejectreason[32];
1380 cls.connect_trying = false;
1382 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1383 memcpy(rejectreason, string, length);
1384 rejectreason[length] = 0;
1385 M_Update_Return_Reason(rejectreason);
1388 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1390 serverlist_info_t *info;
1394 // search the cache for this server and update it
1395 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1399 info = &serverlist_cache[n].info;
1404 info->protocol = -1;
1405 info->numplayers = 0;
1407 info->maxplayers = 0;
1408 info->gameversion = 0;
1409 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1410 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1411 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1412 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1413 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1414 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1415 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1416 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1417 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1418 info->numhumans = info->numplayers - max(0, info->numbots);
1419 info->freeslots = info->maxplayers - info->numplayers;
1421 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1425 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1427 // Extract the IP addresses
1431 if (serverlist_consoleoutput)
1432 Con_Print("received DarkPlaces server list...\n");
1433 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1435 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1436 if (serverlist_consoleoutput && developer_networking.integer)
1437 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1439 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, ipstring ) ) {
1443 // move on to next address in packet
1447 // begin or resume serverlist queries
1448 serverlist_querysleep = false;
1449 serverlist_querywaittime = realtime + 3;
1452 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1454 // Extract the IP addresses
1458 if (serverlist_consoleoutput)
1459 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1460 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1462 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1463 if (serverlist_consoleoutput && developer_networking.integer)
1464 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1466 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, ipstring ) ) {
1470 // move on to next address in packet
1474 // begin or resume serverlist queries
1475 serverlist_querysleep = false;
1476 serverlist_querywaittime = realtime + 3;
1479 if (!strncmp(string, "extResponse ", 12))
1481 ++net_extresponse_count;
1482 if(net_extresponse_count > NET_EXTRESPONSE_MAX)
1483 net_extresponse_count = NET_EXTRESPONSE_MAX;
1484 net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1485 dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
1488 if (!strncmp(string, "ping", 4))
1490 if (developer.integer >= 10)
1491 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
1492 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1495 if (!strncmp(string, "ack", 3))
1497 // QuakeWorld compatibility
1498 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1500 // challenge message
1501 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1502 M_Update_Return_Reason("Got QuakeWorld challenge response");
1503 cls.qw_qport = qport.integer;
1504 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1505 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1506 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1509 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1512 M_Update_Return_Reason("QuakeWorld Accepted");
1513 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1516 if (length > 2 && !memcmp(string, "n\\", 2))
1518 serverlist_info_t *info;
1522 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1523 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1526 // search the cache for this server and update it
1527 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1531 info = &serverlist_cache[n].info;
1532 strlcpy(info->game, "QuakeWorld", sizeof(info->game));;
1533 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1534 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1535 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1537 info->numplayers = 0; // updated below
1538 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1539 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1541 // count active players on server
1542 // (we could gather more info, but we're just after the number)
1543 s = strchr(string, '\n');
1547 while (s < string + length)
1549 for (;s < string + length && *s != '\n';s++)
1551 if (s >= string + length)
1558 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1562 if (string[0] == 'n')
1565 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1567 // we may not have liked the packet, but it was a command packet, so
1568 // we're done processing this packet now
1571 // quakeworld ingame packet
1572 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1575 CL_ParseServerMessage();
1578 // netquake control packets, supported for compatibility only
1579 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1582 serverlist_info_t *info;
1586 SZ_Clear(&net_message);
1587 SZ_Write(&net_message, data, length);
1593 if (developer.integer >= 10)
1594 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1595 if (cls.connect_trying)
1597 lhnetaddress_t clientportaddress;
1598 clientportaddress = *peeraddress;
1599 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1600 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1601 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1602 M_Update_Return_Reason("Accepted");
1603 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1607 if (developer.integer >= 10)
1608 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1609 cls.connect_trying = false;
1610 M_Update_Return_Reason((char *)MSG_ReadString());
1612 case CCREP_SERVER_INFO:
1613 if (developer.integer >= 10)
1614 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1615 // LordHavoc: because the quake server may report weird addresses
1616 // we just ignore it and keep the real address
1618 // search the cache for this server and update it
1619 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1623 info = &serverlist_cache[n].info;
1624 strlcpy(info->game, "Quake", sizeof(info->game));
1625 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1626 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1627 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1628 info->numplayers = MSG_ReadByte();
1629 info->maxplayers = MSG_ReadByte();
1630 info->protocol = MSG_ReadByte();
1632 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1635 case CCREP_PLAYER_INFO:
1636 // we got a CCREP_PLAYER_INFO??
1637 //if (developer.integer >= 10)
1638 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1640 case CCREP_RULE_INFO:
1641 // we got a CCREP_RULE_INFO??
1642 //if (developer.integer >= 10)
1643 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1648 SZ_Clear(&net_message);
1649 // we may not have liked the packet, but it was a valid control
1650 // packet, so we're done processing this packet now
1654 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1655 CL_ParseServerMessage();
1659 void NetConn_QueryQueueFrame(void)
1665 static double querycounter = 0;
1667 if (serverlist_querysleep)
1670 // apply a cool down time after master server replies,
1671 // to avoid messing up the ping times on the servers
1672 if (serverlist_querywaittime > realtime)
1675 // each time querycounter reaches 1.0 issue a query
1676 querycounter += cl.realframetime * net_slist_queriespersecond.value;
1677 maxqueries = (int)querycounter;
1678 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1679 querycounter -= maxqueries;
1681 if( maxqueries == 0 ) {
1685 // scan serverlist and issue queries as needed
1686 serverlist_querysleep = true;
1688 timeouttime = realtime - net_slist_timeout.value;
1689 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1691 serverlist_entry_t *entry = &serverlist_cache[ index ];
1692 if( entry->query != SQS_QUERYING && entry->query != SQS_REFRESHING )
1697 serverlist_querysleep = false;
1698 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1703 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1705 lhnetaddress_t address;
1708 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1709 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1711 for (socket = 0; socket < cl_numsockets ; socket++)
1712 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1716 for (socket = 0; socket < cl_numsockets ; socket++)
1717 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1720 // update the entry fields
1721 entry->querytime = realtime;
1722 entry->querycounter++;
1724 // if not in the slist menu we should print the server to console
1725 if (serverlist_consoleoutput)
1726 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1732 // have we tried to refresh this server?
1733 if( entry->query == SQS_REFRESHING ) {
1734 // yes, so update the reply count (since its not responding anymore)
1736 ServerList_ViewList_Remove(entry);
1738 entry->query = SQS_TIMEDOUT;
1743 void NetConn_ClientFrame(void)
1746 lhnetaddress_t peeraddress;
1747 NetConn_UpdateSockets();
1748 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1750 if (cls.connect_remainingtries == 0)
1751 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1752 cls.connect_nextsendtime = realtime + 1;
1753 cls.connect_remainingtries--;
1754 if (cls.connect_remainingtries <= -10)
1756 cls.connect_trying = false;
1757 M_Update_Return_Reason("Connect: Failed");
1760 // try challenge first (newer DP server or QW)
1761 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1762 // then try netquake as a fallback (old server, or netquake)
1763 SZ_Clear(&net_message);
1764 // save space for the header, filled in later
1765 MSG_WriteLong(&net_message, 0);
1766 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1767 MSG_WriteString(&net_message, "QUAKE");
1768 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1769 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1770 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1771 SZ_Clear(&net_message);
1773 for (i = 0;i < cl_numsockets;i++)
1774 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1775 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1776 NetConn_QueryQueueFrame();
1777 if (cls.netcon && realtime > cls.netcon->timeout && !sv.active)
1779 Con_Print("Connection timed out\n");
1781 Host_ShutdownServer ();
1785 #define MAX_CHALLENGES 128
1788 lhnetaddress_t address;
1792 challenge[MAX_CHALLENGES];
1794 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1798 for (i = 0;i < bufferlength - 1;i++)
1802 c = rand () % (127 - 33) + 33;
1803 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1809 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1811 unsigned int nb_clients = 0, nb_bots = 0, i;
1814 // How many clients are there?
1815 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1817 if (svs.clients[i].active)
1820 if (!svs.clients[i].netconnection)
1825 // TODO: we should add more information for the full status string
1826 length = dpsnprintf(out_msg, out_size,
1827 "\377\377\377\377%s\x0A"
1828 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
1829 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
1832 fullstatus ? "statusResponse" : "infoResponse",
1833 gamename, com_modname, gameversion.integer, svs.maxclients,
1834 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1835 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1836 fullstatus ? "\n" : "");
1838 // Make sure it fits in the buffer
1847 ptr = out_msg + length;
1848 left = (int)out_size - length;
1850 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1852 client_t *cl = &svs.clients[i];
1855 int nameind, cleanind, pingvalue;
1857 char cleanname [sizeof(cl->name)];
1859 // Remove all characters '"' and '\' in the player name
1864 curchar = cl->name[nameind++];
1865 if (curchar != '"' && curchar != '\\')
1867 cleanname[cleanind++] = curchar;
1868 if (cleanind == sizeof(cleanname) - 1)
1871 } while (curchar != '\0');
1873 pingvalue = (int)(cl->ping * 1000.0f);
1874 if(cl->netconnection)
1875 pingvalue = bound(1, pingvalue, 9999);
1878 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1893 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
1895 int floodslotnum, bestfloodslotnum;
1896 double bestfloodtime;
1897 lhnetaddress_t noportpeeraddress;
1898 // see if this is a connect flood
1899 noportpeeraddress = *peeraddress;
1900 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1901 bestfloodslotnum = 0;
1902 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
1903 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1905 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
1907 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
1908 bestfloodslotnum = floodslotnum;
1910 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1912 // this address matches an ongoing flood address
1913 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
1915 // renew the ban on this address so it does not expire
1916 // until the flood has subsided
1917 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
1918 //Con_Printf("Flood detected!\n");
1921 // the flood appears to have subsided, so allow this
1922 bestfloodslotnum = floodslotnum; // reuse the same slot
1926 // begin a new timeout on this address
1927 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
1928 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
1929 //Con_Printf("Flood detection initiated!\n");
1933 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
1936 lhnetaddress_t noportpeeraddress;
1937 // see if this is a connect flood
1938 noportpeeraddress = *peeraddress;
1939 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1940 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1942 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1944 // this address matches an ongoing flood address
1946 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
1947 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
1948 //Con_Printf("Flood cleared!\n");
1953 extern void SV_SendServerinfo (client_t *client);
1954 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1956 int i, ret, clientnum, best;
1959 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
1960 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
1965 // convert the address to a string incase we need it
1966 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1968 // see if we can identify the sender as a local player
1969 // (this is necessary for rcon to send a reliable reply if the client is
1970 // actually on the server, not sending remotely)
1971 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1972 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
1974 if (i == svs.maxclients)
1977 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1979 // received a command string - strip off the packaging and put it
1980 // into our string buffer with NULL termination
1983 length = min(length, (int)sizeof(stringbuf) - 1);
1984 memcpy(stringbuf, data, length);
1985 stringbuf[length] = 0;
1988 if (developer.integer >= 10)
1990 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
1991 Com_HexDumpToConsole(data, length);
1994 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
1996 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
1998 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
2000 if (besttime > challenge[i].time)
2001 besttime = challenge[best = i].time;
2003 // if we did not find an exact match, choose the oldest and
2004 // update address and string
2005 if (i == MAX_CHALLENGES)
2008 challenge[i].address = *peeraddress;
2009 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
2011 challenge[i].time = realtime;
2012 // send the challenge
2013 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
2016 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
2021 if (!(s = SearchInfostring(string, "challenge")))
2023 // validate the challenge
2024 for (i = 0;i < MAX_CHALLENGES;i++)
2025 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
2027 // if the challenge is not recognized, drop the packet
2028 if (i == MAX_CHALLENGES)
2031 // check engine protocol
2032 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
2034 if (developer.integer >= 10)
2035 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
2036 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
2040 // see if this is a duplicate connection request or a disconnected
2041 // client who is rejoining to the same client slot
2042 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2044 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2046 // this is a known client...
2047 if (client->spawned)
2049 // client crashed and is coming back,
2050 // keep their stuff intact
2051 if (developer.integer >= 10)
2052 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2053 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2055 SV_SendServerinfo(client);
2060 // client is still trying to connect,
2061 // so we send a duplicate reply
2062 if (developer.integer >= 10)
2063 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2064 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2070 if (NetConn_PreventConnectFlood(peeraddress))
2073 // find an empty client slot for this new client
2074 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2077 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2079 // allocated connection
2080 if (developer.integer >= 10)
2081 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2082 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2083 // now set up the client
2085 SV_ConnectClient(clientnum, conn);
2087 NetConn_Heartbeat(1);
2092 // no empty slots found - server is full
2093 if (developer.integer >= 10)
2094 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2095 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2099 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2101 const char *challenge = NULL;
2103 // If there was a challenge in the getinfo message
2104 if (length > 8 && string[7] == ' ')
2105 challenge = string + 8;
2107 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2109 if (developer.integer >= 10)
2110 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
2111 NetConn_WriteString(mysocket, response, peeraddress);
2115 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2117 const char *challenge = NULL;
2119 // If there was a challenge in the getinfo message
2120 if (length > 10 && string[9] == ' ')
2121 challenge = string + 10;
2123 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2125 if (developer.integer >= 10)
2126 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
2127 NetConn_WriteString(mysocket, response, peeraddress);
2131 if (length >= 5 && !memcmp(string, "rcon ", 5))
2134 char *s = string + 5;
2135 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2137 for (i = 0;*s > ' ';s++)
2138 if (i < (int)sizeof(password) - 1)
2140 if(*s <= ' ' && s != endpos) // skip leading ugly space
2143 if (password[0] > ' ' && !strcmp(rcon_password.string, password))
2145 // looks like a legitimate rcon command with the correct password
2147 Con_Printf("server received rcon command from %s:\n", host_client ? host_client->name : addressstring2);
2148 while(s_ptr != endpos)
2150 size_t l = strlen(s_ptr);
2152 Con_Printf(" %s;", s_ptr);
2156 rcon_redirect = true;
2157 rcon_redirect_bufferpos = 0;
2160 size_t l = strlen(s);
2162 Cmd_ExecuteString(s, src_command);
2165 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
2166 rcon_redirect = false;
2167 // print resulting text to client
2168 // if client is playing, send a reliable reply instead of
2172 // if the netconnection is loop, then this is the
2173 // local player on a listen mode server, and it would
2174 // result in duplicate printing to the console
2175 // (not that the local player should be using rcon
2176 // when they have the console)
2177 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2178 SV_ClientPrintf("%s", rcon_redirect_buffer);
2183 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
2184 NetConn_WriteString(mysocket, response, peeraddress);
2189 if (!strncmp(string, "ping", 4))
2191 if (developer.integer >= 10)
2192 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
2193 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2196 if (!strncmp(string, "ack", 3))
2198 // we may not have liked the packet, but it was a command packet, so
2199 // we're done processing this packet now
2202 // netquake control packets, supported for compatibility only, and only
2203 // when running game protocols that are normally served via this connection
2205 // (this protects more modern protocols against being used for
2206 // Quake packet flood Denial Of Service attacks)
2207 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))
2211 const char *protocolname;
2214 SZ_Clear(&net_message);
2215 SZ_Write(&net_message, data, length);
2221 if (developer.integer >= 10)
2222 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2223 if(!islocal && sv_public.integer <= -2)
2226 protocolname = MSG_ReadString();
2227 protocolnumber = MSG_ReadByte();
2228 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2230 if (developer.integer >= 10)
2231 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2232 SZ_Clear(&net_message);
2233 // save space for the header, filled in later
2234 MSG_WriteLong(&net_message, 0);
2235 MSG_WriteByte(&net_message, CCREP_REJECT);
2236 MSG_WriteString(&net_message, "Incompatible version.\n");
2237 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2238 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2239 SZ_Clear(&net_message);
2243 // see if this connect request comes from a known client
2244 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2246 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2248 // this is either a duplicate connection request
2249 // or coming back from a timeout
2250 // (if so, keep their stuff intact)
2253 if (developer.integer >= 10)
2254 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2255 SZ_Clear(&net_message);
2256 // save space for the header, filled in later
2257 MSG_WriteLong(&net_message, 0);
2258 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2259 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2260 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2261 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2262 SZ_Clear(&net_message);
2264 // if client is already spawned, re-send the
2265 // serverinfo message as they'll need it to play
2266 if (client->spawned)
2269 SV_SendServerinfo(client);
2276 // this is a new client, check for connection flood
2277 if (NetConn_PreventConnectFlood(peeraddress))
2280 // find a slot for the new client
2281 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2284 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2286 // connect to the client
2287 // everything is allocated, just fill in the details
2288 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2289 if (developer.integer >= 10)
2290 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2291 // send back the info about the server connection
2292 SZ_Clear(&net_message);
2293 // save space for the header, filled in later
2294 MSG_WriteLong(&net_message, 0);
2295 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2296 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2297 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2298 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2299 SZ_Clear(&net_message);
2300 // now set up the client struct
2302 SV_ConnectClient(clientnum, conn);
2304 NetConn_Heartbeat(1);
2309 if (developer.integer >= 10)
2310 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2311 // no room; try to let player know
2312 SZ_Clear(&net_message);
2313 // save space for the header, filled in later
2314 MSG_WriteLong(&net_message, 0);
2315 MSG_WriteByte(&net_message, CCREP_REJECT);
2316 MSG_WriteString(&net_message, "Server is full.\n");
2317 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2318 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2319 SZ_Clear(&net_message);
2321 case CCREQ_SERVER_INFO:
2322 if (developer.integer >= 10)
2323 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2324 if(!islocal && sv_public.integer <= -1)
2326 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2329 char myaddressstring[128];
2330 if (developer.integer >= 10)
2331 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2332 SZ_Clear(&net_message);
2333 // save space for the header, filled in later
2334 MSG_WriteLong(&net_message, 0);
2335 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2336 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2337 MSG_WriteString(&net_message, myaddressstring);
2338 MSG_WriteString(&net_message, hostname.string);
2339 MSG_WriteString(&net_message, sv.name);
2340 // How many clients are there?
2341 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2342 if (svs.clients[i].active)
2344 MSG_WriteByte(&net_message, numclients);
2345 MSG_WriteByte(&net_message, svs.maxclients);
2346 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2347 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2348 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2349 SZ_Clear(&net_message);
2352 case CCREQ_PLAYER_INFO:
2353 if (developer.integer >= 10)
2354 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2355 if(!islocal && sv_public.integer <= -1)
2359 int playerNumber, activeNumber, clientNumber;
2362 playerNumber = MSG_ReadByte();
2364 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2365 if (client->active && ++activeNumber == playerNumber)
2367 if (clientNumber != svs.maxclients)
2369 SZ_Clear(&net_message);
2370 // save space for the header, filled in later
2371 MSG_WriteLong(&net_message, 0);
2372 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2373 MSG_WriteByte(&net_message, playerNumber);
2374 MSG_WriteString(&net_message, client->name);
2375 MSG_WriteLong(&net_message, client->colors);
2376 MSG_WriteLong(&net_message, client->frags);
2377 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2378 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2379 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2380 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2381 SZ_Clear(&net_message);
2385 case CCREQ_RULE_INFO:
2386 if (developer.integer >= 10)
2387 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2388 if(!islocal && sv_public.integer <= -1)
2395 // find the search start location
2396 prevCvarName = MSG_ReadString();
2397 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2399 // send the response
2400 SZ_Clear(&net_message);
2401 // save space for the header, filled in later
2402 MSG_WriteLong(&net_message, 0);
2403 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2406 MSG_WriteString(&net_message, var->name);
2407 MSG_WriteString(&net_message, var->string);
2409 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2410 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2411 SZ_Clear(&net_message);
2417 SZ_Clear(&net_message);
2418 // we may not have liked the packet, but it was a valid control
2419 // packet, so we're done processing this packet now
2424 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
2427 SV_ReadClientMessage();
2435 void NetConn_ServerFrame(void)
2438 lhnetaddress_t peeraddress;
2439 for (i = 0;i < sv_numsockets;i++)
2440 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2441 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2442 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2444 // never timeout loopback connections
2445 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2447 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2449 SV_DropClient(false);
2455 void NetConn_SleepMicroseconds(int microseconds)
2457 LHNET_SleepUntilPacket_Microseconds(microseconds);
2460 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
2464 lhnetaddress_t masteraddress;
2465 lhnetaddress_t broadcastaddress;
2468 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2471 // 26000 is the default quake server port, servers on other ports will not
2473 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2474 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2478 for (i = 0;i < cl_numsockets;i++)
2482 // search LAN for Quake servers
2483 SZ_Clear(&net_message);
2484 // save space for the header, filled in later
2485 MSG_WriteLong(&net_message, 0);
2486 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2487 MSG_WriteString(&net_message, "QUAKE");
2488 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2489 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2490 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2491 SZ_Clear(&net_message);
2493 // search LAN for DarkPlaces servers
2494 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2496 // build the getservers message to send to the dpmaster master servers
2497 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2500 for (masternum = 0;sv_masters[masternum].name;masternum++)
2502 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])))
2505 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2512 // only query QuakeWorld servers when the user wants to
2515 for (i = 0;i < cl_numsockets;i++)
2519 // search LAN for QuakeWorld servers
2520 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
2522 // build the getservers message to send to the qwmaster master servers
2523 // note this has no -1 prefix, and the trailing nul byte is sent
2524 dpsnprintf(request, sizeof(request), "c\n");
2527 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2529 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2531 if (m_state != m_slist)
2533 char lookupstring[128];
2534 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
2535 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
2538 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
2544 if (!masterquerycount)
2546 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2547 M_Update_Return_Reason("No network");
2551 void NetConn_Heartbeat(int priority)
2553 lhnetaddress_t masteraddress;
2555 lhnetsocket_t *mysocket;
2557 // if it's a state change (client connected), limit next heartbeat to no
2558 // more than 30 sec in the future
2559 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2560 nextheartbeattime = realtime + 30.0;
2562 // limit heartbeatperiod to 30 to 270 second range,
2563 // lower limit is to avoid abusing master servers with excess traffic,
2564 // upper limit is to avoid timing out on the master server (which uses
2566 if (sv_heartbeatperiod.value < 30)
2567 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2568 if (sv_heartbeatperiod.value > 270)
2569 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2571 // make advertising optional and don't advertise singleplayer games, and
2572 // only send a heartbeat as often as the admin wants
2573 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2575 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2576 for (masternum = 0;sv_masters[masternum].name;masternum++)
2577 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2578 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2582 static void Net_Heartbeat_f(void)
2585 NetConn_Heartbeat(2);
2587 Con_Print("No server running, can not heartbeat to master server.\n");
2590 void PrintStats(netconn_t *conn)
2592 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2593 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2595 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2598 void Net_Stats_f(void)
2601 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2602 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2603 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2604 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2605 Con_Printf("packetsSent = %i\n", packetsSent);
2606 Con_Printf("packetsReSent = %i\n", packetsReSent);
2607 Con_Printf("packetsReceived = %i\n", packetsReceived);
2608 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2609 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2610 Con_Print("connections =\n");
2611 for (conn = netconn_list;conn;conn = conn->next)
2615 void Net_Refresh_f(void)
2617 if (m_state != m_slist) {
2618 Con_Print("Sending new requests to master servers\n");
2619 ServerList_QueryList(false, true, false, true);
2620 Con_Print("Listening for replies...\n");
2622 ServerList_QueryList(false, true, false, false);
2625 void Net_Slist_f(void)
2627 ServerList_ResetMasks();
2628 serverlist_sortbyfield = SLIF_PING;
2629 serverlist_sortdescending = false;
2630 if (m_state != m_slist) {
2631 Con_Print("Sending requests to master servers\n");
2632 ServerList_QueryList(true, true, false, true);
2633 Con_Print("Listening for replies...\n");
2635 ServerList_QueryList(true, true, false, false);
2638 void Net_SlistQW_f(void)
2640 ServerList_ResetMasks();
2641 serverlist_sortbyfield = SLIF_PING;
2642 serverlist_sortdescending = false;
2643 if (m_state != m_slist) {
2644 Con_Print("Sending requests to master servers\n");
2645 ServerList_QueryList(true, false, true, true);
2646 serverlist_consoleoutput = true;
2647 Con_Print("Listening for replies...\n");
2649 ServerList_QueryList(true, false, true, false);
2652 void NetConn_Init(void)
2655 lhnetaddress_t tempaddress;
2656 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2657 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2658 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
2659 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
2660 Cmd_AddCommand("net_refresh", Net_Refresh_f, "query dp master servers and refresh all server information");
2661 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2662 Cvar_RegisterVariable(&net_slist_queriespersecond);
2663 Cvar_RegisterVariable(&net_slist_queriesperframe);
2664 Cvar_RegisterVariable(&net_slist_timeout);
2665 Cvar_RegisterVariable(&net_slist_maxtries);
2666 Cvar_RegisterVariable(&net_messagetimeout);
2667 Cvar_RegisterVariable(&net_connecttimeout);
2668 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
2669 Cvar_RegisterVariable(&cl_netlocalping);
2670 Cvar_RegisterVariable(&cl_netpacketloss_send);
2671 Cvar_RegisterVariable(&cl_netpacketloss_receive);
2672 Cvar_RegisterVariable(&hostname);
2673 Cvar_RegisterVariable(&developer_networking);
2674 Cvar_RegisterVariable(&cl_netport);
2675 Cvar_RegisterVariable(&sv_netport);
2676 Cvar_RegisterVariable(&net_address);
2677 //Cvar_RegisterVariable(&net_address_ipv6);
2678 Cvar_RegisterVariable(&sv_public);
2679 Cvar_RegisterVariable(&sv_heartbeatperiod);
2680 for (i = 0;sv_masters[i].name;i++)
2681 Cvar_RegisterVariable(&sv_masters[i]);
2682 Cvar_RegisterVariable(&gameversion);
2683 // 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.
2684 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2686 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2688 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
2689 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2692 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2694 // 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
2695 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2697 i = atoi(com_argv[i + 1]);
2698 if (i >= 0 && i < 65536)
2700 Con_Printf("-port option used, setting port cvar to %i\n", i);
2701 Cvar_SetValueQuick(&sv_netport, i);
2704 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2708 net_message.data = net_message_buf;
2709 net_message.maxsize = sizeof(net_message_buf);
2710 net_message.cursize = 0;
2714 void NetConn_Shutdown(void)
2716 NetConn_CloseClientPorts();
2717 NetConn_CloseServerPorts();