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", "master.quakeservers.net:27000", "Global master server. (admin: unknown)"},
52 {0, "sv_qwmasterextra2", "asgaard.morphos-team.net:27000", "Global master server. (admin: unknown)"},
53 {0, "sv_qwmasterextra3", "qwmaster.ocrana.de:27000", "German master server. (admin: unknown)"},
54 {0, "sv_qwmasterextra4", "masterserver.exhale.de:27000", "German master server. (admin: unknown)"},
55 {0, "sv_qwmasterextra5", "kubus.rulez.pl:27000", "Poland master server. (admin: unknown)"},
59 static double nextheartbeattime = 0;
61 sizebuf_t net_message;
62 static unsigned char net_message_buf[NET_MAXMESSAGE];
64 cvar_t net_messagetimeout = {0, "net_messagetimeout","300", "drops players who have not sent any packets for this many seconds"};
65 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)"};
66 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)"};
67 cvar_t hostname = {CVAR_SAVE, "hostname", "UNNAMED", "server message to show in server browser"};
68 cvar_t developer_networking = {0, "developer_networking", "0", "prints all received and sent packets (recommended only for debugging)"};
70 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)"};
71 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)"};
72 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)"};
73 static cvar_t net_slist_queriespersecond = {0, "net_slist_queriespersecond", "20", "how many server information requests to send per second"};
74 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)"};
75 static cvar_t net_slist_timeout = {0, "net_slist_timeout", "4", "how long to listen for a server information response before giving up"};
76 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)"};
78 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"};
79 static cvar_t rcon_restricted_password = {CVAR_PRIVATE, "rcon_restricted_password", "", "password to authenticate rcon commands in restricted mode"};
80 static cvar_t rcon_restricted_commands = {0, "rcon_restricted_commands", "", "allowed commands for rcon when the restricted mode password was used"};
82 /* statistic counters */
83 static int packetsSent = 0;
84 static int packetsReSent = 0;
85 static int packetsReceived = 0;
86 static int receivedDuplicateCount = 0;
87 static int droppedDatagrams = 0;
89 static int unreliableMessagesSent = 0;
90 static int unreliableMessagesReceived = 0;
91 static int reliableMessagesSent = 0;
92 static int reliableMessagesReceived = 0;
94 double masterquerytime = -1000;
95 int masterquerycount = 0;
96 int masterreplycount = 0;
97 int serverquerycount = 0;
98 int serverreplycount = 0;
100 // this is only false if there are still servers left to query
101 static qboolean serverlist_querysleep = true;
102 // this is pushed a second or two ahead of realtime whenever a master server
103 // reply is received, to avoid issuing queries while master replies are still
104 // flooding in (which would make a mess of the ping times)
105 static double serverlist_querywaittime = 0;
107 static unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
108 static unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
110 static int cl_numsockets;
111 static lhnetsocket_t *cl_sockets[16];
112 static int sv_numsockets;
113 static lhnetsocket_t *sv_sockets[16];
115 netconn_t *netconn_list = NULL;
116 mempool_t *netconn_mempool = NULL;
118 cvar_t cl_netport = {0, "cl_port", "0", "forces client to use chosen port number if not 0"};
119 cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to"};
120 cvar_t net_address = {0, "net_address", "0.0.0.0", "network address to open ports on"};
121 //cvar_t net_netaddress_ipv6 = {0, "net_address_ipv6", "[0:0:0:0:0:0:0:0]", "network address to open ipv6 ports on"};
123 char net_extresponse[NET_EXTRESPONSE_MAX][1400];
124 int net_extresponse_count = 0;
125 int net_extresponse_last = 0;
127 // ServerList interface
128 serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT];
129 serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT];
131 serverlist_infofield_t serverlist_sortbyfield;
132 qboolean serverlist_sortdescending;
134 int serverlist_viewcount = 0;
135 serverlist_entry_t *serverlist_viewlist[SERVERLIST_VIEWLISTSIZE];
137 int serverlist_cachecount;
138 serverlist_entry_t serverlist_cache[SERVERLIST_TOTALSIZE];
140 qboolean serverlist_consoleoutput;
142 // helper function to insert a value into the viewset
143 // spare entries will be removed
144 static void _ServerList_ViewList_Helper_InsertBefore( int index, serverlist_entry_t *entry )
147 if( serverlist_viewcount < SERVERLIST_VIEWLISTSIZE ) {
148 i = serverlist_viewcount++;
150 i = SERVERLIST_VIEWLISTSIZE - 1;
153 for( ; i > index ; i-- )
154 serverlist_viewlist[ i ] = serverlist_viewlist[ i - 1 ];
156 serverlist_viewlist[index] = entry;
159 // we suppose serverlist_viewcount to be valid, ie > 0
160 static void _ServerList_ViewList_Helper_Remove( int index )
162 serverlist_viewcount--;
163 for( ; index < serverlist_viewcount ; index++ )
164 serverlist_viewlist[index] = serverlist_viewlist[index + 1];
167 // returns true if A should be inserted before B
168 static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_entry_t *B )
170 int result = 0; // > 0 if for numbers A > B and for text if A < B
172 switch( serverlist_sortbyfield ) {
174 result = A->info.ping - B->info.ping;
176 case SLIF_MAXPLAYERS:
177 result = A->info.maxplayers - B->info.maxplayers;
179 case SLIF_NUMPLAYERS:
180 result = A->info.numplayers - B->info.numplayers;
183 result = A->info.numbots - B->info.numbots;
186 result = A->info.numhumans - B->info.numhumans;
189 result = A->info.freeslots - B->info.freeslots;
192 result = A->info.protocol - B->info.protocol;
195 result = strcmp( B->info.cname, A->info.cname );
198 result = strcmp( B->info.game, A->info.game );
201 result = strcmp( B->info.map, A->info.map );
204 result = strcmp( B->info.mod, A->info.mod );
207 result = strcmp( B->info.name, A->info.name );
210 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
214 if( serverlist_sortdescending )
218 // if the chosen sort key is identical, sort by index
219 // (makes this a stable sort, so that later replies from servers won't
220 // shuffle the servers around when they have the same ping)
224 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
226 // This should actually be done with some intermediate and end-of-function return
238 case SLMO_GREATEREQUAL:
240 case SLMO_NOTCONTAIN:
243 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
248 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
251 char bufferA[ 256 ], bufferB[ 256 ]; // should be more than enough
252 for (i = 0;i < (int)sizeof(bufferA)-1 && A[i];i++)
253 bufferA[i] = (A[i] >= 'A' && A[i] <= 'Z') ? (A[i] + 'a' - 'A') : A[i];
255 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
256 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
259 // Same here, also using an intermediate & final return would be more appropriate
263 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
264 case SLMO_NOTCONTAIN:
265 return !*bufferB || !strstr( bufferA, bufferB );
267 return strcmp( bufferA, bufferB ) < 0;
269 return strcmp( bufferA, bufferB ) <= 0;
271 return strcmp( bufferA, bufferB ) == 0;
273 return strcmp( bufferA, bufferB ) > 0;
275 return strcmp( bufferA, bufferB ) != 0;
276 case SLMO_GREATEREQUAL:
277 return strcmp( bufferA, bufferB ) >= 0;
279 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
284 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
286 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
288 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
290 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
292 if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) )
294 if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) )
296 if( !_ServerList_CompareInt( info->freeslots, mask->tests[SLIF_FREESLOTS], mask->info.freeslots ) )
298 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
300 if( *mask->info.cname
301 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
304 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
307 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
310 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
313 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
318 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
322 // reject incompatible servers
323 if (entry->info.gameversion != gameversion.integer)
326 // FIXME: change this to be more readable (...)
327 // now check whether it passes through the masks
328 for( start = 0 ; serverlist_andmasks[start].active && start < SERVERLIST_ANDMASKCOUNT ; start++ )
329 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
332 for( start = 0 ; serverlist_ormasks[start].active && start < SERVERLIST_ORMASKCOUNT ; start++ )
333 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
335 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
338 if( !serverlist_viewcount ) {
339 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
342 // ok, insert it, we just need to find out where exactly:
345 // check whether to insert it as new first item
346 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
347 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
349 } // check whether to insert it as new last item
350 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
351 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
355 end = serverlist_viewcount - 1;
356 while( end > start + 1 )
358 mid = (start + end) / 2;
359 // test the item that lies in the middle between start and end
360 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
361 // the item has to be in the upper half
364 // the item has to be in the lower half
367 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
370 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
373 for( i = 0; i < serverlist_viewcount; i++ )
375 if (serverlist_viewlist[i] == entry)
377 _ServerList_ViewList_Helper_Remove(i);
383 void ServerList_RebuildViewList(void)
387 serverlist_viewcount = 0;
388 for( i = 0 ; i < serverlist_cachecount ; i++ ) {
389 serverlist_entry_t *entry = &serverlist_cache[i];
390 // also display entries that are currently being refreshed [11/8/2007 Black]
391 if( entry->query == SQS_QUERIED || entry->query == SQS_REFRESHING )
392 ServerList_ViewList_Insert( entry );
396 void ServerList_ResetMasks(void)
400 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
401 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
402 // numbots needs to be compared to -1 to always succeed
403 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
404 serverlist_andmasks[i].info.numbots = -1;
405 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
406 serverlist_ormasks[i].info.numbots = -1;
409 void ServerList_GetPlayerStatistics(int *numplayerspointer, int *maxplayerspointer)
412 int numplayers = 0, maxplayers = 0;
413 for (i = 0;i < serverlist_cachecount;i++)
415 if (serverlist_cache[i].query == SQS_QUERIED)
417 numplayers += serverlist_cache[i].info.numhumans;
418 maxplayers += serverlist_cache[i].info.maxplayers;
421 *numplayerspointer = numplayers;
422 *maxplayerspointer = maxplayers;
426 static void _ServerList_Test(void)
429 for( i = 0 ; i < 1024 ; i++ ) {
430 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
431 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
432 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
433 serverlist_cache[serverlist_cachecount].finished = true;
434 sprintf( serverlist_cache[serverlist_cachecount].line1, "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
435 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
436 serverlist_cachecount++;
441 void ServerList_QueryList(qboolean resetcache, qboolean querydp, qboolean queryqw, qboolean consoleoutput)
443 masterquerytime = realtime;
444 masterquerycount = 0;
445 masterreplycount = 0;
447 serverquerycount = 0;
448 serverreplycount = 0;
449 serverlist_cachecount = 0;
450 serverlist_viewcount = 0;
452 // refresh all entries
454 for( n = 0 ; n < serverlist_cachecount ; n++ ) {
455 serverlist_entry_t *entry = &serverlist_cache[ n ];
456 entry->query = SQS_REFRESHING;
457 entry->querycounter = 0;
460 serverlist_consoleoutput = consoleoutput;
462 //_ServerList_Test();
464 NetConn_QueryMasters(querydp, queryqw);
469 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
471 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
475 if (cl_netpacketloss_receive.integer)
476 for (i = 0;i < cl_numsockets;i++)
477 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer)
479 if (developer_networking.integer)
481 char addressstring[128], addressstring2[128];
482 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
485 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
486 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", mysocket, addressstring, data, maxlength, peeraddress, length, addressstring2);
487 Com_HexDumpToConsole((unsigned char *)data, length);
490 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", mysocket, addressstring, data, maxlength, peeraddress, length);
495 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
499 if (cl_netpacketloss_send.integer)
500 for (i = 0;i < cl_numsockets;i++)
501 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer)
503 ret = LHNET_Write(mysocket, data, length, peeraddress);
504 if (developer_networking.integer)
506 char addressstring[128], addressstring2[128];
507 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
508 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
509 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", mysocket, addressstring, data, length, peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
510 Com_HexDumpToConsole((unsigned char *)data, length);
515 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
517 // note this does not include the trailing NULL because we add that in the parser
518 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
521 qboolean NetConn_CanSend(netconn_t *conn)
523 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
524 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
525 conn->outgoing_reliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
526 conn->outgoing_acksize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
527 if (realtime > conn->cleartime)
531 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_CHOKEDPACKET;
536 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate, qboolean quakesignon_suppressreliables)
540 // if this packet was supposedly choked, but we find ourselves sending one
541 // anyway, make sure the size counting starts at zero
542 // (this mostly happens on level changes and disconnects and such)
543 if (conn->outgoing_unreliablesize[conn->outgoing_packetcounter] == NETGRAPH_CHOKEDPACKET)
544 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
546 if (protocol == PROTOCOL_QUAKEWORLD)
549 qboolean sendreliable;
551 // note that it is ok to send empty messages to the qw server,
552 // otherwise it won't respond to us at all
554 sendreliable = false;
555 // if the remote side dropped the last reliable message, resend it
556 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
558 // if the reliable transmit buffer is empty, copy the current message out
559 if (!conn->sendMessageLength && conn->message.cursize)
561 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
562 conn->sendMessageLength = conn->message.cursize;
563 SZ_Clear(&conn->message); // clear the message buffer
564 conn->qw.reliable_sequence ^= 1;
567 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
568 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->qw.outgoing_sequence | ((unsigned int)sendreliable<<31));
569 // last received unreliable packet number, and last received reliable packet number (0 or 1)
570 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
572 conn->qw.outgoing_sequence++;
573 // client sends qport in every packet
574 if (conn == cls.netcon)
576 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
578 // also update cls.qw_outgoing_sequence
579 cls.qw_outgoing_sequence = conn->qw.outgoing_sequence;
581 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
583 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
587 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
589 // add the reliable message if there is one
592 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += conn->sendMessageLength;
593 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
594 packetLen += conn->sendMessageLength;
595 conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence;
598 // add the unreliable message if possible
599 if (packetLen + data->cursize <= 1400)
601 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += data->cursize;
602 memcpy(sendbuffer + packetLen, data->data, data->cursize);
603 packetLen += data->cursize;
606 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
609 unreliableMessagesSent++;
611 totallen += packetLen + 28;
615 unsigned int packetLen;
616 unsigned int dataLen;
618 unsigned int *header;
620 // if a reliable message fragment has been lost, send it again
621 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
623 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
625 dataLen = conn->sendMessageLength;
630 dataLen = MAX_PACKETFRAGMENT;
634 packetLen = NET_HEADERSIZE + dataLen;
636 header = (unsigned int *)sendbuffer;
637 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
638 header[1] = BigLong(conn->nq.sendSequence - 1);
639 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
641 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
643 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
645 conn->lastSendTime = realtime;
649 totallen += packetLen + 28;
652 // if we have a new reliable message to send, do so
653 if (!conn->sendMessageLength && conn->message.cursize && !quakesignon_suppressreliables)
655 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
657 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
658 conn->message.overflowed = true;
662 if (developer_networking.integer && conn == cls.netcon)
664 Con_Print("client sending reliable message to server:\n");
665 SZ_HexDumpToConsole(&conn->message);
668 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
669 conn->sendMessageLength = conn->message.cursize;
670 SZ_Clear(&conn->message);
672 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
674 dataLen = conn->sendMessageLength;
679 dataLen = MAX_PACKETFRAGMENT;
683 packetLen = NET_HEADERSIZE + dataLen;
685 header = (unsigned int *)sendbuffer;
686 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
687 header[1] = BigLong(conn->nq.sendSequence);
688 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
690 conn->nq.sendSequence++;
692 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
694 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
696 conn->lastSendTime = realtime;
698 reliableMessagesSent++;
700 totallen += packetLen + 28;
703 // if we have an unreliable message to send, do so
706 packetLen = NET_HEADERSIZE + data->cursize;
708 if (packetLen > (int)sizeof(sendbuffer))
710 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
714 header = (unsigned int *)sendbuffer;
715 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
716 header[1] = BigLong(conn->nq.unreliableSendSequence);
717 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
719 conn->nq.unreliableSendSequence++;
721 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
723 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
726 unreliableMessagesSent++;
728 totallen += packetLen + 28;
732 // delay later packets to obey rate limit
733 if (conn->cleartime < realtime - 0.1)
734 conn->cleartime = realtime - 0.1;
735 conn->cleartime = conn->cleartime + (double)totallen / (double)rate;
736 if (conn->cleartime < realtime)
737 conn->cleartime = realtime;
742 qboolean NetConn_HaveClientPorts(void)
744 return !!cl_numsockets;
747 qboolean NetConn_HaveServerPorts(void)
749 return !!sv_numsockets;
752 void NetConn_CloseClientPorts(void)
754 for (;cl_numsockets > 0;cl_numsockets--)
755 if (cl_sockets[cl_numsockets - 1])
756 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
759 void NetConn_OpenClientPort(const char *addressstring, int defaultport)
761 lhnetaddress_t address;
763 char addressstring2[1024];
764 if (LHNETADDRESS_FromString(&address, addressstring, defaultport))
766 if ((s = LHNET_OpenSocket_Connectionless(&address)))
768 cl_sockets[cl_numsockets++] = s;
769 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
770 Con_Printf("Client opened a socket on address %s\n", addressstring2);
774 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
775 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
779 Con_Printf("Client unable to parse address %s\n", addressstring);
782 void NetConn_OpenClientPorts(void)
785 NetConn_CloseClientPorts();
786 port = bound(0, cl_netport.integer, 65535);
787 if (cl_netport.integer != port)
788 Cvar_SetValueQuick(&cl_netport, port);
789 Con_Printf("Client using port %i\n", port);
790 NetConn_OpenClientPort("local:2", 0);
791 NetConn_OpenClientPort(net_address.string, port);
792 //NetConn_OpenClientPort(net_address_ipv6.string, port);
795 void NetConn_CloseServerPorts(void)
797 for (;sv_numsockets > 0;sv_numsockets--)
798 if (sv_sockets[sv_numsockets - 1])
799 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
802 void NetConn_OpenServerPort(const char *addressstring, int defaultport)
804 lhnetaddress_t address;
807 char addressstring2[1024];
809 for (port = defaultport; port <= defaultport + 100; port++)
811 if (LHNETADDRESS_FromString(&address, addressstring, port))
813 if ((s = LHNET_OpenSocket_Connectionless(&address)))
815 sv_sockets[sv_numsockets++] = s;
816 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
817 Con_Printf("Server listening on address %s\n", addressstring2);
822 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
823 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
828 Con_Printf("Server unable to parse address %s\n", addressstring);
829 // if it cant parse one address, it wont be able to parse another for sure
835 void NetConn_OpenServerPorts(int opennetports)
838 NetConn_CloseServerPorts();
839 NetConn_UpdateSockets();
840 port = bound(0, sv_netport.integer, 65535);
843 Con_Printf("Server using port %i\n", port);
844 if (sv_netport.integer != port)
845 Cvar_SetValueQuick(&sv_netport, port);
846 if (cls.state != ca_dedicated)
847 NetConn_OpenServerPort("local:1", 0);
850 NetConn_OpenServerPort(net_address.string, port);
851 //NetConn_OpenServerPort(net_address_ipv6.string, port);
853 if (sv_numsockets == 0)
854 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
857 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
859 int i, a = LHNETADDRESS_GetAddressType(address);
860 for (i = 0;i < cl_numsockets;i++)
861 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
862 return cl_sockets[i];
866 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
868 int i, a = LHNETADDRESS_GetAddressType(address);
869 for (i = 0;i < sv_numsockets;i++)
870 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
871 return sv_sockets[i];
875 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
878 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
879 conn->mysocket = mysocket;
880 conn->peeraddress = *peeraddress;
881 conn->lastMessageTime = realtime;
882 conn->message.data = conn->messagedata;
883 conn->message.maxsize = sizeof(conn->messagedata);
884 conn->message.cursize = 0;
885 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
886 // reduce effectiveness of connection request floods
887 conn->timeout = realtime + net_connecttimeout.value;
888 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
889 conn->next = netconn_list;
894 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress);
895 void NetConn_Close(netconn_t *conn)
898 // remove connection from list
900 // allow the client to reconnect immediately
901 NetConn_ClearConnectFlood(&(conn->peeraddress));
903 if (conn == netconn_list)
904 netconn_list = conn->next;
907 for (c = netconn_list;c;c = c->next)
911 c->next = conn->next;
915 // not found in list, we'll avoid crashing here...
923 static int clientport = -1;
924 static int clientport2 = -1;
925 static int hostport = -1;
926 void NetConn_UpdateSockets(void)
928 if (cls.state != ca_dedicated)
930 if (clientport2 != cl_netport.integer)
932 clientport2 = cl_netport.integer;
933 if (cls.state == ca_connected)
934 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
936 if (cls.state == ca_disconnected && clientport != clientport2)
938 clientport = clientport2;
939 NetConn_CloseClientPorts();
941 if (cl_numsockets == 0)
942 NetConn_OpenClientPorts();
945 if (hostport != sv_netport.integer)
947 hostport = sv_netport.integer;
949 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
953 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout)
955 int originallength = length;
959 if (protocol == PROTOCOL_QUAKEWORLD)
961 int sequence, sequence_ack;
962 int reliable_ack, reliable_message;
966 sequence = LittleLong(*((int *)(data + 0)));
967 sequence_ack = LittleLong(*((int *)(data + 4)));
971 if (conn != cls.netcon)
976 // 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?)
977 qport = LittleShort(*((int *)(data + 8)));
983 reliable_message = (sequence >> 31) & 1;
984 reliable_ack = (sequence_ack >> 31) & 1;
985 sequence &= ~(1<<31);
986 sequence_ack &= ~(1<<31);
987 if (sequence <= conn->qw.incoming_sequence)
989 //Con_DPrint("Got a stale datagram\n");
992 count = sequence - (conn->qw.incoming_sequence + 1);
995 droppedDatagrams += count;
996 //Con_DPrintf("Dropped %u datagram(s)\n", count);
999 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1000 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1001 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1002 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1005 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1006 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1007 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1008 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1009 if (reliable_ack == conn->qw.reliable_sequence)
1011 // received, now we will be able to send another reliable message
1012 conn->sendMessageLength = 0;
1013 reliableMessagesReceived++;
1015 conn->qw.incoming_sequence = sequence;
1016 if (conn == cls.netcon)
1017 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
1018 conn->qw.incoming_acknowledged = sequence_ack;
1019 conn->qw.incoming_reliable_acknowledged = reliable_ack;
1020 if (reliable_message)
1021 conn->qw.incoming_reliable_sequence ^= 1;
1022 conn->lastMessageTime = realtime;
1023 conn->timeout = realtime + newtimeout;
1024 unreliableMessagesReceived++;
1025 SZ_Clear(&net_message);
1026 SZ_Write(&net_message, data, length);
1034 unsigned int sequence;
1037 qlength = (unsigned int)BigLong(((int *)data)[0]);
1038 flags = qlength & ~NETFLAG_LENGTH_MASK;
1039 qlength &= NETFLAG_LENGTH_MASK;
1040 // control packets were already handled
1041 if (!(flags & NETFLAG_CTL) && qlength == length)
1043 sequence = BigLong(((int *)data)[1]);
1047 if (flags & NETFLAG_UNRELIABLE)
1049 if (sequence >= conn->nq.unreliableReceiveSequence)
1051 if (sequence > conn->nq.unreliableReceiveSequence)
1053 count = sequence - conn->nq.unreliableReceiveSequence;
1054 droppedDatagrams += count;
1055 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1058 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1059 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1060 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1061 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1064 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1065 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1066 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1067 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1068 conn->nq.unreliableReceiveSequence = sequence + 1;
1069 conn->lastMessageTime = realtime;
1070 conn->timeout = realtime + newtimeout;
1071 unreliableMessagesReceived++;
1074 SZ_Clear(&net_message);
1075 SZ_Write(&net_message, data, length);
1081 // Con_DPrint("Got a stale datagram\n");
1084 else if (flags & NETFLAG_ACK)
1086 conn->incoming_acksize[conn->incoming_packetcounter] += originallength;
1087 if (sequence == (conn->nq.sendSequence - 1))
1089 if (sequence == conn->nq.ackSequence)
1091 conn->nq.ackSequence++;
1092 if (conn->nq.ackSequence != conn->nq.sendSequence)
1093 Con_DPrint("ack sequencing error\n");
1094 conn->lastMessageTime = realtime;
1095 conn->timeout = realtime + newtimeout;
1096 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1098 unsigned int packetLen;
1099 unsigned int dataLen;
1101 unsigned int *header;
1103 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1104 memmove(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1106 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1108 dataLen = conn->sendMessageLength;
1113 dataLen = MAX_PACKETFRAGMENT;
1117 packetLen = NET_HEADERSIZE + dataLen;
1119 header = (unsigned int *)sendbuffer;
1120 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
1121 header[1] = BigLong(conn->nq.sendSequence);
1122 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1124 conn->nq.sendSequence++;
1126 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1128 conn->lastSendTime = realtime;
1133 conn->sendMessageLength = 0;
1136 // Con_DPrint("Duplicate ACK received\n");
1139 // Con_DPrint("Stale ACK received\n");
1142 else if (flags & NETFLAG_DATA)
1144 unsigned int temppacket[2];
1145 conn->incoming_reliablesize[conn->incoming_packetcounter] += originallength;
1146 conn->outgoing_acksize[conn->outgoing_packetcounter] += 8;
1147 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1148 temppacket[1] = BigLong(sequence);
1149 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1150 if (sequence == conn->nq.receiveSequence)
1152 conn->lastMessageTime = realtime;
1153 conn->timeout = realtime + newtimeout;
1154 conn->nq.receiveSequence++;
1155 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1156 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1157 conn->receiveMessageLength += length;
1159 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1160 "Dropping the message!\n", sequence );
1161 conn->receiveMessageLength = 0;
1164 if (flags & NETFLAG_EOM)
1166 reliableMessagesReceived++;
1167 length = conn->receiveMessageLength;
1168 conn->receiveMessageLength = 0;
1171 SZ_Clear(&net_message);
1172 SZ_Write(&net_message, conn->receiveMessage, length);
1179 receivedDuplicateCount++;
1187 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1189 cls.connect_trying = false;
1190 M_Update_Return_Reason("");
1191 // the connection request succeeded, stop current connection and set up a new connection
1193 // if we're connecting to a remote server, shut down any local server
1194 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1195 Host_ShutdownServer ();
1196 // allocate a net connection to keep track of things
1197 cls.netcon = NetConn_Open(mysocket, peeraddress);
1198 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1199 key_dest = key_game;
1201 cls.demonum = -1; // not in the demo loop now
1202 cls.state = ca_connected;
1203 cls.signon = 0; // need all the signon messages before playing
1204 cls.protocol = initialprotocol;
1205 // reset move sequence numbering on this new connection
1206 cls.movesequence = 1;
1207 cls.servermovesequence = 0;
1208 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1209 Cmd_ForwardStringToServer("new");
1210 if (cls.protocol == PROTOCOL_QUAKE)
1212 // write a keepalive (clc_nop) as it seems to greatly improve the
1213 // chances of connecting to a netquake server
1215 unsigned char buf[4];
1216 memset(&msg, 0, sizeof(msg));
1218 msg.maxsize = sizeof(buf);
1219 MSG_WriteChar(&msg, clc_nop);
1220 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000, false);
1224 int NetConn_IsLocalGame(void)
1226 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1231 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1235 serverlist_entry_t *entry = NULL;
1237 // search the cache for this server and update it
1238 for (n = 0;n < serverlist_cachecount;n++) {
1239 entry = &serverlist_cache[ n ];
1240 if (!strcmp(addressstring, entry->info.cname))
1244 if (n == serverlist_cachecount)
1246 // LAN search doesnt require an answer from the master server so we wont
1247 // know the ping nor will it be initialized already...
1250 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1253 entry = &serverlist_cache[n];
1255 memset(entry, 0, sizeof(*entry));
1256 // store the data the engine cares about (address and ping)
1257 strlcpy(entry->info.cname, addressstring, sizeof(entry->info.cname));
1258 entry->info.ping = 100000;
1259 entry->querytime = realtime;
1260 // if not in the slist menu we should print the server to console
1261 if (serverlist_consoleoutput)
1262 Con_Printf("querying %s\n", addressstring);
1263 ++serverlist_cachecount;
1265 // if this is the first reply from this server, count it as having replied
1266 pingtime = (int)((realtime - entry->querytime) * 1000.0 + 0.5);
1267 pingtime = bound(0, pingtime, 9999);
1268 if (entry->query == SQS_REFRESHING) {
1269 entry->info.ping = pingtime;
1270 entry->query = SQS_QUERIED;
1272 // convert to unsigned to catch the -1
1273 // 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]
1274 entry->info.ping = min((unsigned) entry->info.ping, (unsigned) pingtime);
1278 // other server info is updated by the caller
1282 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1284 serverlist_entry_t *entry = &serverlist_cache[n];
1285 serverlist_info_t *info = &entry->info;
1286 // update description strings for engine menu and console output
1287 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);
1288 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);
1289 if (entry->query == SQS_QUERIED)
1290 ServerList_ViewList_Remove(entry);
1291 // if not in the slist menu we should print the server to console (if wanted)
1292 else if( serverlist_consoleoutput )
1293 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1294 // and finally, update the view set
1295 ServerList_ViewList_Insert( entry );
1296 // update the entry's state
1297 serverlist_cache[n].query = SQS_QUERIED;
1300 // returns true, if it's sensible to continue the processing
1301 static qboolean NetConn_ClientParsePacket_ServerList_PrepareQuery( int protocol, const char *ipstring ) {
1303 serverlist_entry_t *entry;
1305 // ignore the rest of the message if the serverlist is full
1306 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1308 // also ignore it if we have already queried it (other master server response)
1309 for( n = 0 ; n < serverlist_cachecount ; n++ )
1310 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1313 entry = &serverlist_cache[n];
1315 if( n < serverlist_cachecount ) {
1316 // the entry has already been queried once or
1320 memset(entry, 0, sizeof(entry));
1321 entry->protocol = protocol;
1322 // store the data the engine cares about (address and ping)
1323 strlcpy (entry->info.cname, ipstring, sizeof(entry->info.cname));
1325 // no, then reset the ping right away
1326 entry->info.ping = -1;
1327 // we also want to increase the serverlist_cachecount then
1328 serverlist_cachecount++;
1331 entry->query = SQS_QUERYING;
1336 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1338 qboolean fromserver;
1339 int ret, c, control;
1341 char *string, addressstring2[128], ipstring[32];
1342 char stringbuf[16384];
1344 // quakeworld ingame packet
1345 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1347 // convert the address to a string incase we need it
1348 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1350 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1352 // received a command string - strip off the packaging and put it
1353 // into our string buffer with NULL termination
1356 length = min(length, (int)sizeof(stringbuf) - 1);
1357 memcpy(stringbuf, data, length);
1358 stringbuf[length] = 0;
1361 if (developer_networking.integer)
1363 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1364 Com_HexDumpToConsole(data, length);
1367 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1369 // darkplaces or quake3
1370 char protocolnames[1400];
1371 Protocol_Names(protocolnames, sizeof(protocolnames));
1372 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1373 M_Update_Return_Reason("Got challenge response");
1374 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1375 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1376 // TODO: add userinfo stuff here instead of using NQ commands?
1377 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1380 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1382 // darkplaces or quake3
1383 M_Update_Return_Reason("Accepted");
1384 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1387 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1389 char rejectreason[32];
1390 cls.connect_trying = false;
1392 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1393 memcpy(rejectreason, string, length);
1394 rejectreason[length] = 0;
1395 M_Update_Return_Reason(rejectreason);
1398 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1400 serverlist_info_t *info;
1404 // search the cache for this server and update it
1405 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1409 info = &serverlist_cache[n].info;
1414 info->protocol = -1;
1415 info->numplayers = 0;
1417 info->maxplayers = 0;
1418 info->gameversion = 0;
1419 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1420 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1421 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1422 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1423 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1424 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1425 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1426 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1427 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1428 info->numhumans = info->numplayers - max(0, info->numbots);
1429 info->freeslots = info->maxplayers - info->numplayers;
1431 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1435 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1437 // Extract the IP addresses
1441 if (serverlist_consoleoutput)
1442 Con_Print("received DarkPlaces server list...\n");
1443 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1445 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1446 if (serverlist_consoleoutput && developer_networking.integer)
1447 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1449 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, ipstring ) ) {
1453 // move on to next address in packet
1457 // begin or resume serverlist queries
1458 serverlist_querysleep = false;
1459 serverlist_querywaittime = realtime + 3;
1462 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1464 // Extract the IP addresses
1468 if (serverlist_consoleoutput)
1469 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1470 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1472 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1473 if (serverlist_consoleoutput && developer_networking.integer)
1474 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1476 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, ipstring ) ) {
1480 // move on to next address in packet
1484 // begin or resume serverlist queries
1485 serverlist_querysleep = false;
1486 serverlist_querywaittime = realtime + 3;
1489 if (!strncmp(string, "extResponse ", 12))
1491 ++net_extresponse_count;
1492 if(net_extresponse_count > NET_EXTRESPONSE_MAX)
1493 net_extresponse_count = NET_EXTRESPONSE_MAX;
1494 net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1495 dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
1498 if (!strncmp(string, "ping", 4))
1500 if (developer.integer >= 10)
1501 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
1502 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1505 if (!strncmp(string, "ack", 3))
1507 // QuakeWorld compatibility
1508 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1510 // challenge message
1511 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1512 M_Update_Return_Reason("Got QuakeWorld challenge response");
1513 cls.qw_qport = qport.integer;
1514 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1515 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1516 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1519 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1522 M_Update_Return_Reason("QuakeWorld Accepted");
1523 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1526 if (length > 2 && !memcmp(string, "n\\", 2))
1528 serverlist_info_t *info;
1532 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1533 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1536 // search the cache for this server and update it
1537 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1541 info = &serverlist_cache[n].info;
1542 strlcpy(info->game, "QuakeWorld", sizeof(info->game));;
1543 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1544 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1545 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1547 info->numplayers = 0; // updated below
1548 info->numhumans = 0; // updated below
1549 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1550 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1552 // count active players on server
1553 // (we could gather more info, but we're just after the number)
1554 s = strchr(string, '\n');
1558 while (s < string + length)
1560 for (;s < string + length && *s != '\n';s++)
1562 if (s >= string + length)
1570 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1574 if (string[0] == 'n')
1577 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1579 // we may not have liked the packet, but it was a command packet, so
1580 // we're done processing this packet now
1583 // quakeworld ingame packet
1584 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1587 CL_ParseServerMessage();
1590 // netquake control packets, supported for compatibility only
1591 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1594 serverlist_info_t *info;
1598 SZ_Clear(&net_message);
1599 SZ_Write(&net_message, data, length);
1605 if (developer.integer >= 10)
1606 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1607 if (cls.connect_trying)
1609 lhnetaddress_t clientportaddress;
1610 clientportaddress = *peeraddress;
1611 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1612 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1613 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1614 M_Update_Return_Reason("Accepted");
1615 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1619 if (developer.integer >= 10)
1620 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1621 cls.connect_trying = false;
1622 M_Update_Return_Reason((char *)MSG_ReadString());
1624 case CCREP_SERVER_INFO:
1625 if (developer.integer >= 10)
1626 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1627 // LordHavoc: because the quake server may report weird addresses
1628 // we just ignore it and keep the real address
1630 // search the cache for this server and update it
1631 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1635 info = &serverlist_cache[n].info;
1636 strlcpy(info->game, "Quake", sizeof(info->game));
1637 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1638 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1639 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1640 info->numplayers = MSG_ReadByte();
1641 info->maxplayers = MSG_ReadByte();
1642 info->protocol = MSG_ReadByte();
1644 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1647 case CCREP_PLAYER_INFO:
1648 // we got a CCREP_PLAYER_INFO??
1649 //if (developer.integer >= 10)
1650 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1652 case CCREP_RULE_INFO:
1653 // we got a CCREP_RULE_INFO??
1654 //if (developer.integer >= 10)
1655 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1660 SZ_Clear(&net_message);
1661 // we may not have liked the packet, but it was a valid control
1662 // packet, so we're done processing this packet now
1666 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1667 CL_ParseServerMessage();
1671 void NetConn_QueryQueueFrame(void)
1677 static double querycounter = 0;
1679 if (serverlist_querysleep)
1682 // apply a cool down time after master server replies,
1683 // to avoid messing up the ping times on the servers
1684 if (serverlist_querywaittime > realtime)
1687 // each time querycounter reaches 1.0 issue a query
1688 querycounter += cl.realframetime * net_slist_queriespersecond.value;
1689 maxqueries = (int)querycounter;
1690 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1691 querycounter -= maxqueries;
1693 if( maxqueries == 0 ) {
1697 // scan serverlist and issue queries as needed
1698 serverlist_querysleep = true;
1700 timeouttime = realtime - net_slist_timeout.value;
1701 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1703 serverlist_entry_t *entry = &serverlist_cache[ index ];
1704 if( entry->query != SQS_QUERYING && entry->query != SQS_REFRESHING )
1709 serverlist_querysleep = false;
1710 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1715 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1717 lhnetaddress_t address;
1720 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1721 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1723 for (socket = 0; socket < cl_numsockets ; socket++)
1724 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1728 for (socket = 0; socket < cl_numsockets ; socket++)
1729 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1732 // update the entry fields
1733 entry->querytime = realtime;
1734 entry->querycounter++;
1736 // if not in the slist menu we should print the server to console
1737 if (serverlist_consoleoutput)
1738 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1744 // have we tried to refresh this server?
1745 if( entry->query == SQS_REFRESHING ) {
1746 // yes, so update the reply count (since its not responding anymore)
1748 ServerList_ViewList_Remove(entry);
1750 entry->query = SQS_TIMEDOUT;
1755 void NetConn_ClientFrame(void)
1758 lhnetaddress_t peeraddress;
1759 NetConn_UpdateSockets();
1760 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1762 if (cls.connect_remainingtries == 0)
1763 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1764 cls.connect_nextsendtime = realtime + 1;
1765 cls.connect_remainingtries--;
1766 if (cls.connect_remainingtries <= -10)
1768 cls.connect_trying = false;
1769 M_Update_Return_Reason("Connect: Failed");
1772 // try challenge first (newer DP server or QW)
1773 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1774 // then try netquake as a fallback (old server, or netquake)
1775 SZ_Clear(&net_message);
1776 // save space for the header, filled in later
1777 MSG_WriteLong(&net_message, 0);
1778 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1779 MSG_WriteString(&net_message, "QUAKE");
1780 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1781 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1782 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1783 SZ_Clear(&net_message);
1785 for (i = 0;i < cl_numsockets;i++)
1786 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1787 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1788 NetConn_QueryQueueFrame();
1789 if (cls.netcon && realtime > cls.netcon->timeout && !sv.active)
1791 Con_Print("Connection timed out\n");
1793 Host_ShutdownServer ();
1797 #define MAX_CHALLENGES 128
1800 lhnetaddress_t address;
1804 challenge[MAX_CHALLENGES];
1806 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1810 for (i = 0;i < bufferlength - 1;i++)
1814 c = rand () % (127 - 33) + 33;
1815 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1821 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1823 unsigned int nb_clients = 0, nb_bots = 0, i;
1826 // How many clients are there?
1827 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1829 if (svs.clients[i].active)
1832 if (!svs.clients[i].netconnection)
1837 // TODO: we should add more information for the full status string
1838 length = dpsnprintf(out_msg, out_size,
1839 "\377\377\377\377%s\x0A"
1840 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
1841 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
1844 fullstatus ? "statusResponse" : "infoResponse",
1845 gamename, com_modname, gameversion.integer, svs.maxclients,
1846 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1847 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1848 fullstatus ? "\n" : "");
1850 // Make sure it fits in the buffer
1859 ptr = out_msg + length;
1860 left = (int)out_size - length;
1862 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1864 client_t *cl = &svs.clients[i];
1867 int nameind, cleanind, pingvalue;
1869 char cleanname [sizeof(cl->name)];
1871 // Remove all characters '"' and '\' in the player name
1876 curchar = cl->name[nameind++];
1877 if (curchar != '"' && curchar != '\\')
1879 cleanname[cleanind++] = curchar;
1880 if (cleanind == sizeof(cleanname) - 1)
1883 } while (curchar != '\0');
1885 pingvalue = (int)(cl->ping * 1000.0f);
1886 if(cl->netconnection)
1887 pingvalue = bound(1, pingvalue, 9999);
1890 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1905 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
1907 int floodslotnum, bestfloodslotnum;
1908 double bestfloodtime;
1909 lhnetaddress_t noportpeeraddress;
1910 // see if this is a connect flood
1911 noportpeeraddress = *peeraddress;
1912 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1913 bestfloodslotnum = 0;
1914 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
1915 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1917 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
1919 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
1920 bestfloodslotnum = floodslotnum;
1922 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1924 // this address matches an ongoing flood address
1925 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
1927 // renew the ban on this address so it does not expire
1928 // until the flood has subsided
1929 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
1930 //Con_Printf("Flood detected!\n");
1933 // the flood appears to have subsided, so allow this
1934 bestfloodslotnum = floodslotnum; // reuse the same slot
1938 // begin a new timeout on this address
1939 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
1940 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
1941 //Con_Printf("Flood detection initiated!\n");
1945 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
1948 lhnetaddress_t noportpeeraddress;
1949 // see if this is a connect flood
1950 noportpeeraddress = *peeraddress;
1951 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1952 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1954 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1956 // this address matches an ongoing flood address
1958 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
1959 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
1960 //Con_Printf("Flood cleared!\n");
1965 qboolean RCon_Authenticate(const char *password, const char *s, const char *endpos)
1969 if(!strcmp(rcon_password.string, password))
1972 if(strcmp(rcon_restricted_password.string, password))
1975 for(text = s; text != endpos; ++text)
1976 if(*text > 0 && (*text < ' ' || *text == ';'))
1977 return false; // block possible exploits against the parser/alias expansion
1981 size_t l = strlen(s);
1986 if (!COM_ParseToken_Console(&text))
1989 // com_token now contains the command
1990 if(!strstr(va(" %s ", rcon_restricted_commands.string), va(" %s ", com_token)))
1999 extern void SV_SendServerinfo (client_t *client);
2000 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
2002 int i, ret, clientnum, best;
2005 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
2006 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
2011 // convert the address to a string incase we need it
2012 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
2014 // see if we can identify the sender as a local player
2015 // (this is necessary for rcon to send a reliable reply if the client is
2016 // actually on the server, not sending remotely)
2017 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2018 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
2020 if (i == svs.maxclients)
2023 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
2025 // received a command string - strip off the packaging and put it
2026 // into our string buffer with NULL termination
2029 length = min(length, (int)sizeof(stringbuf) - 1);
2030 memcpy(stringbuf, data, length);
2031 stringbuf[length] = 0;
2034 if (developer.integer >= 10)
2036 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
2037 Com_HexDumpToConsole(data, length);
2040 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
2042 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
2044 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
2046 if (besttime > challenge[i].time)
2047 besttime = challenge[best = i].time;
2049 // if we did not find an exact match, choose the oldest and
2050 // update address and string
2051 if (i == MAX_CHALLENGES)
2054 challenge[i].address = *peeraddress;
2055 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
2057 challenge[i].time = realtime;
2058 // send the challenge
2059 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
2062 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
2067 if (!(s = SearchInfostring(string, "challenge")))
2069 // validate the challenge
2070 for (i = 0;i < MAX_CHALLENGES;i++)
2071 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
2073 // if the challenge is not recognized, drop the packet
2074 if (i == MAX_CHALLENGES)
2077 // check engine protocol
2078 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
2080 if (developer.integer >= 10)
2081 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
2082 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
2086 // see if this is a duplicate connection request or a disconnected
2087 // client who is rejoining to the same client slot
2088 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2090 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2092 // this is a known client...
2093 if (client->spawned)
2095 // client crashed and is coming back,
2096 // keep their stuff intact
2097 if (developer.integer >= 10)
2098 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2099 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2101 SV_SendServerinfo(client);
2106 // client is still trying to connect,
2107 // so we send a duplicate reply
2108 if (developer.integer >= 10)
2109 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2110 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2116 if (NetConn_PreventConnectFlood(peeraddress))
2119 // find an empty client slot for this new client
2120 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2123 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2125 // allocated connection
2126 if (developer.integer >= 10)
2127 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2128 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2129 // now set up the client
2131 SV_ConnectClient(clientnum, conn);
2133 NetConn_Heartbeat(1);
2138 // no empty slots found - server is full
2139 if (developer.integer >= 10)
2140 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2141 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2145 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2147 const char *challenge = NULL;
2149 // If there was a challenge in the getinfo message
2150 if (length > 8 && string[7] == ' ')
2151 challenge = string + 8;
2153 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2155 if (developer.integer >= 10)
2156 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
2157 NetConn_WriteString(mysocket, response, peeraddress);
2161 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2163 const char *challenge = NULL;
2165 // If there was a challenge in the getinfo message
2166 if (length > 10 && string[9] == ' ')
2167 challenge = string + 10;
2169 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2171 if (developer.integer >= 10)
2172 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
2173 NetConn_WriteString(mysocket, response, peeraddress);
2177 if (length >= 5 && !memcmp(string, "rcon ", 5))
2180 char *s = string + 5;
2181 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2183 for (i = 0;*s > ' ';s++)
2184 if (i < (int)sizeof(password) - 1)
2186 if(*s <= ' ' && s != endpos) // skip leading ugly space
2189 if (password[0] > ' ')
2191 if (RCon_Authenticate(password, s, endpos))
2193 // looks like a legitimate rcon command with the correct password
2195 Con_Printf("server received rcon command from %s:\n", host_client ? host_client->name : addressstring2);
2196 while(s_ptr != endpos)
2198 size_t l = strlen(s_ptr);
2200 Con_Printf(" %s;", s_ptr);
2204 rcon_redirect = true;
2205 rcon_redirect_bufferpos = 0;
2208 size_t l = strlen(s);
2210 Cmd_ExecuteString(s, src_command);
2213 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
2214 rcon_redirect = false;
2215 // print resulting text to client
2216 // if client is playing, send a reliable reply instead of
2220 // if the netconnection is loop, then this is the
2221 // local player on a listen mode server, and it would
2222 // result in duplicate printing to the console
2223 // (not that the local player should be using rcon
2224 // when they have the console)
2225 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2226 SV_ClientPrintf("%s", rcon_redirect_buffer);
2231 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
2232 NetConn_WriteString(mysocket, response, peeraddress);
2237 Con_Printf("server denied rcon access to %s\n", host_client ? host_client->name : addressstring2);
2242 if (!strncmp(string, "ping", 4))
2244 if (developer.integer >= 10)
2245 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
2246 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2249 if (!strncmp(string, "ack", 3))
2251 // we may not have liked the packet, but it was a command packet, so
2252 // we're done processing this packet now
2255 // netquake control packets, supported for compatibility only, and only
2256 // when running game protocols that are normally served via this connection
2258 // (this protects more modern protocols against being used for
2259 // Quake packet flood Denial Of Service attacks)
2260 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))
2264 const char *protocolname;
2267 SZ_Clear(&net_message);
2268 SZ_Write(&net_message, data, length);
2274 if (developer.integer >= 10)
2275 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2276 if(!islocal && sv_public.integer <= -2)
2279 protocolname = MSG_ReadString();
2280 protocolnumber = MSG_ReadByte();
2281 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2283 if (developer.integer >= 10)
2284 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2285 SZ_Clear(&net_message);
2286 // save space for the header, filled in later
2287 MSG_WriteLong(&net_message, 0);
2288 MSG_WriteByte(&net_message, CCREP_REJECT);
2289 MSG_WriteString(&net_message, "Incompatible version.\n");
2290 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2291 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2292 SZ_Clear(&net_message);
2296 // see if this connect request comes from a known client
2297 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2299 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2301 // this is either a duplicate connection request
2302 // or coming back from a timeout
2303 // (if so, keep their stuff intact)
2306 if (developer.integer >= 10)
2307 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2308 SZ_Clear(&net_message);
2309 // save space for the header, filled in later
2310 MSG_WriteLong(&net_message, 0);
2311 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2312 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2313 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2314 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2315 SZ_Clear(&net_message);
2317 // if client is already spawned, re-send the
2318 // serverinfo message as they'll need it to play
2319 if (client->spawned)
2322 SV_SendServerinfo(client);
2329 // this is a new client, check for connection flood
2330 if (NetConn_PreventConnectFlood(peeraddress))
2333 // find a slot for the new client
2334 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2337 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2339 // connect to the client
2340 // everything is allocated, just fill in the details
2341 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2342 if (developer.integer >= 10)
2343 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2344 // send back the info about the server connection
2345 SZ_Clear(&net_message);
2346 // save space for the header, filled in later
2347 MSG_WriteLong(&net_message, 0);
2348 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2349 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2350 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2351 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2352 SZ_Clear(&net_message);
2353 // now set up the client struct
2355 SV_ConnectClient(clientnum, conn);
2357 NetConn_Heartbeat(1);
2362 if (developer.integer >= 10)
2363 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2364 // no room; try to let player know
2365 SZ_Clear(&net_message);
2366 // save space for the header, filled in later
2367 MSG_WriteLong(&net_message, 0);
2368 MSG_WriteByte(&net_message, CCREP_REJECT);
2369 MSG_WriteString(&net_message, "Server is full.\n");
2370 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2371 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2372 SZ_Clear(&net_message);
2374 case CCREQ_SERVER_INFO:
2375 if (developer.integer >= 10)
2376 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2377 if(!islocal && sv_public.integer <= -1)
2379 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2382 char myaddressstring[128];
2383 if (developer.integer >= 10)
2384 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2385 SZ_Clear(&net_message);
2386 // save space for the header, filled in later
2387 MSG_WriteLong(&net_message, 0);
2388 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2389 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2390 MSG_WriteString(&net_message, myaddressstring);
2391 MSG_WriteString(&net_message, hostname.string);
2392 MSG_WriteString(&net_message, sv.name);
2393 // How many clients are there?
2394 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2395 if (svs.clients[i].active)
2397 MSG_WriteByte(&net_message, numclients);
2398 MSG_WriteByte(&net_message, svs.maxclients);
2399 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2400 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2401 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2402 SZ_Clear(&net_message);
2405 case CCREQ_PLAYER_INFO:
2406 if (developer.integer >= 10)
2407 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2408 if(!islocal && sv_public.integer <= -1)
2412 int playerNumber, activeNumber, clientNumber;
2415 playerNumber = MSG_ReadByte();
2417 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2418 if (client->active && ++activeNumber == playerNumber)
2420 if (clientNumber != svs.maxclients)
2422 SZ_Clear(&net_message);
2423 // save space for the header, filled in later
2424 MSG_WriteLong(&net_message, 0);
2425 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2426 MSG_WriteByte(&net_message, playerNumber);
2427 MSG_WriteString(&net_message, client->name);
2428 MSG_WriteLong(&net_message, client->colors);
2429 MSG_WriteLong(&net_message, client->frags);
2430 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2431 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2432 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2433 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2434 SZ_Clear(&net_message);
2438 case CCREQ_RULE_INFO:
2439 if (developer.integer >= 10)
2440 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2441 if(!islocal && sv_public.integer <= -1)
2448 // find the search start location
2449 prevCvarName = MSG_ReadString();
2450 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2452 // send the response
2453 SZ_Clear(&net_message);
2454 // save space for the header, filled in later
2455 MSG_WriteLong(&net_message, 0);
2456 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2459 MSG_WriteString(&net_message, var->name);
2460 MSG_WriteString(&net_message, var->string);
2462 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2463 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2464 SZ_Clear(&net_message);
2470 SZ_Clear(&net_message);
2471 // we may not have liked the packet, but it was a valid control
2472 // packet, so we're done processing this packet now
2477 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
2480 SV_ReadClientMessage();
2488 void NetConn_ServerFrame(void)
2491 lhnetaddress_t peeraddress;
2492 for (i = 0;i < sv_numsockets;i++)
2493 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2494 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2495 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2497 // never timeout loopback connections
2498 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2500 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2502 SV_DropClient(false);
2508 void NetConn_SleepMicroseconds(int microseconds)
2510 LHNET_SleepUntilPacket_Microseconds(microseconds);
2513 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
2517 lhnetaddress_t masteraddress;
2518 lhnetaddress_t broadcastaddress;
2521 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2524 // 26000 is the default quake server port, servers on other ports will not
2526 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2527 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2531 for (i = 0;i < cl_numsockets;i++)
2535 // search LAN for Quake servers
2536 SZ_Clear(&net_message);
2537 // save space for the header, filled in later
2538 MSG_WriteLong(&net_message, 0);
2539 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2540 MSG_WriteString(&net_message, "QUAKE");
2541 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2542 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2543 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2544 SZ_Clear(&net_message);
2546 // search LAN for DarkPlaces servers
2547 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2549 // build the getservers message to send to the dpmaster master servers
2550 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2553 for (masternum = 0;sv_masters[masternum].name;masternum++)
2555 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])))
2558 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2565 // only query QuakeWorld servers when the user wants to
2568 for (i = 0;i < cl_numsockets;i++)
2572 // search LAN for QuakeWorld servers
2573 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
2575 // build the getservers message to send to the qwmaster master servers
2576 // note this has no -1 prefix, and the trailing nul byte is sent
2577 dpsnprintf(request, sizeof(request), "c\n");
2580 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2582 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2584 if (m_state != m_slist)
2586 char lookupstring[128];
2587 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
2588 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
2591 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
2597 if (!masterquerycount)
2599 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2600 M_Update_Return_Reason("No network");
2604 void NetConn_Heartbeat(int priority)
2606 lhnetaddress_t masteraddress;
2608 lhnetsocket_t *mysocket;
2610 // if it's a state change (client connected), limit next heartbeat to no
2611 // more than 30 sec in the future
2612 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2613 nextheartbeattime = realtime + 30.0;
2615 // limit heartbeatperiod to 30 to 270 second range,
2616 // lower limit is to avoid abusing master servers with excess traffic,
2617 // upper limit is to avoid timing out on the master server (which uses
2619 if (sv_heartbeatperiod.value < 30)
2620 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2621 if (sv_heartbeatperiod.value > 270)
2622 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2624 // make advertising optional and don't advertise singleplayer games, and
2625 // only send a heartbeat as often as the admin wants
2626 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2628 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2629 for (masternum = 0;sv_masters[masternum].name;masternum++)
2630 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2631 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2635 static void Net_Heartbeat_f(void)
2638 NetConn_Heartbeat(2);
2640 Con_Print("No server running, can not heartbeat to master server.\n");
2643 void PrintStats(netconn_t *conn)
2645 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2646 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2648 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2651 void Net_Stats_f(void)
2654 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2655 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2656 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2657 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2658 Con_Printf("packetsSent = %i\n", packetsSent);
2659 Con_Printf("packetsReSent = %i\n", packetsReSent);
2660 Con_Printf("packetsReceived = %i\n", packetsReceived);
2661 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2662 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2663 Con_Print("connections =\n");
2664 for (conn = netconn_list;conn;conn = conn->next)
2668 void Net_Refresh_f(void)
2670 if (m_state != m_slist) {
2671 Con_Print("Sending new requests to master servers\n");
2672 ServerList_QueryList(false, true, false, true);
2673 Con_Print("Listening for replies...\n");
2675 ServerList_QueryList(false, true, false, false);
2678 void Net_Slist_f(void)
2680 ServerList_ResetMasks();
2681 serverlist_sortbyfield = SLIF_PING;
2682 serverlist_sortdescending = false;
2683 if (m_state != m_slist) {
2684 Con_Print("Sending requests to master servers\n");
2685 ServerList_QueryList(true, true, false, true);
2686 Con_Print("Listening for replies...\n");
2688 ServerList_QueryList(true, true, false, false);
2691 void Net_SlistQW_f(void)
2693 ServerList_ResetMasks();
2694 serverlist_sortbyfield = SLIF_PING;
2695 serverlist_sortdescending = false;
2696 if (m_state != m_slist) {
2697 Con_Print("Sending requests to master servers\n");
2698 ServerList_QueryList(true, false, true, true);
2699 serverlist_consoleoutput = true;
2700 Con_Print("Listening for replies...\n");
2702 ServerList_QueryList(true, false, true, false);
2705 void NetConn_Init(void)
2708 lhnetaddress_t tempaddress;
2709 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2710 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2711 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
2712 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
2713 Cmd_AddCommand("net_refresh", Net_Refresh_f, "query dp master servers and refresh all server information");
2714 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2715 Cvar_RegisterVariable(&rcon_restricted_password);
2716 Cvar_RegisterVariable(&rcon_restricted_commands);
2717 Cvar_RegisterVariable(&net_slist_queriespersecond);
2718 Cvar_RegisterVariable(&net_slist_queriesperframe);
2719 Cvar_RegisterVariable(&net_slist_timeout);
2720 Cvar_RegisterVariable(&net_slist_maxtries);
2721 Cvar_RegisterVariable(&net_messagetimeout);
2722 Cvar_RegisterVariable(&net_connecttimeout);
2723 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
2724 Cvar_RegisterVariable(&cl_netlocalping);
2725 Cvar_RegisterVariable(&cl_netpacketloss_send);
2726 Cvar_RegisterVariable(&cl_netpacketloss_receive);
2727 Cvar_RegisterVariable(&hostname);
2728 Cvar_RegisterVariable(&developer_networking);
2729 Cvar_RegisterVariable(&cl_netport);
2730 Cvar_RegisterVariable(&sv_netport);
2731 Cvar_RegisterVariable(&net_address);
2732 //Cvar_RegisterVariable(&net_address_ipv6);
2733 Cvar_RegisterVariable(&sv_public);
2734 Cvar_RegisterVariable(&sv_heartbeatperiod);
2735 for (i = 0;sv_masters[i].name;i++)
2736 Cvar_RegisterVariable(&sv_masters[i]);
2737 Cvar_RegisterVariable(&gameversion);
2738 // 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.
2739 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2741 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2743 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
2744 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2747 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2749 // 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
2750 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2752 i = atoi(com_argv[i + 1]);
2753 if (i >= 0 && i < 65536)
2755 Con_Printf("-port option used, setting port cvar to %i\n", i);
2756 Cvar_SetValueQuick(&sv_netport, i);
2759 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2763 net_message.data = net_message_buf;
2764 net_message.maxsize = sizeof(net_message_buf);
2765 net_message.cursize = 0;
2769 void NetConn_Shutdown(void)
2771 NetConn_CloseClientPorts();
2772 NetConn_CloseServerPorts();