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_pause = {0, "net_slist_pause", "0", "when set to 1, the server list won't update until it is set back to 0"};
77 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)"};
79 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"};
80 static cvar_t rcon_restricted_password = {CVAR_PRIVATE, "rcon_restricted_password", "", "password to authenticate rcon commands in restricted mode"};
81 static cvar_t rcon_restricted_commands = {0, "rcon_restricted_commands", "", "allowed commands for rcon when the restricted mode password was used"};
83 /* statistic counters */
84 static int packetsSent = 0;
85 static int packetsReSent = 0;
86 static int packetsReceived = 0;
87 static int receivedDuplicateCount = 0;
88 static int droppedDatagrams = 0;
90 static int unreliableMessagesSent = 0;
91 static int unreliableMessagesReceived = 0;
92 static int reliableMessagesSent = 0;
93 static int reliableMessagesReceived = 0;
95 double masterquerytime = -1000;
96 int masterquerycount = 0;
97 int masterreplycount = 0;
98 int serverquerycount = 0;
99 int serverreplycount = 0;
101 // this is only false if there are still servers left to query
102 static qboolean serverlist_querysleep = true;
103 static qboolean serverlist_paused = false;
104 // this is pushed a second or two ahead of realtime whenever a master server
105 // reply is received, to avoid issuing queries while master replies are still
106 // flooding in (which would make a mess of the ping times)
107 static double serverlist_querywaittime = 0;
109 static unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
110 static unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
112 static int cl_numsockets;
113 static lhnetsocket_t *cl_sockets[16];
114 static int sv_numsockets;
115 static lhnetsocket_t *sv_sockets[16];
117 netconn_t *netconn_list = NULL;
118 mempool_t *netconn_mempool = NULL;
120 cvar_t cl_netport = {0, "cl_port", "0", "forces client to use chosen port number if not 0"};
121 cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to"};
122 cvar_t net_address = {0, "net_address", "0.0.0.0", "network address to open ports on"};
123 //cvar_t net_netaddress_ipv6 = {0, "net_address_ipv6", "[0:0:0:0:0:0:0:0]", "network address to open ipv6 ports on"};
125 char net_extresponse[NET_EXTRESPONSE_MAX][1400];
126 int net_extresponse_count = 0;
127 int net_extresponse_last = 0;
129 // ServerList interface
130 serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT];
131 serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT];
133 serverlist_infofield_t serverlist_sortbyfield;
134 qboolean serverlist_sortdescending;
136 int serverlist_viewcount = 0;
137 serverlist_entry_t *serverlist_viewlist[SERVERLIST_VIEWLISTSIZE];
139 int serverlist_cachecount;
140 serverlist_entry_t serverlist_cache[SERVERLIST_TOTALSIZE];
142 qboolean serverlist_consoleoutput;
144 // helper function to insert a value into the viewset
145 // spare entries will be removed
146 static void _ServerList_ViewList_Helper_InsertBefore( int index, serverlist_entry_t *entry )
149 if( serverlist_viewcount < SERVERLIST_VIEWLISTSIZE ) {
150 i = serverlist_viewcount++;
152 i = SERVERLIST_VIEWLISTSIZE - 1;
155 for( ; i > index ; i-- )
156 serverlist_viewlist[ i ] = serverlist_viewlist[ i - 1 ];
158 serverlist_viewlist[index] = entry;
161 // we suppose serverlist_viewcount to be valid, ie > 0
162 static void _ServerList_ViewList_Helper_Remove( int index )
164 serverlist_viewcount--;
165 for( ; index < serverlist_viewcount ; index++ )
166 serverlist_viewlist[index] = serverlist_viewlist[index + 1];
169 // returns true if A should be inserted before B
170 static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_entry_t *B )
172 int result = 0; // > 0 if for numbers A > B and for text if A < B
174 switch( serverlist_sortbyfield ) {
176 result = A->info.ping - B->info.ping;
178 case SLIF_MAXPLAYERS:
179 result = A->info.maxplayers - B->info.maxplayers;
181 case SLIF_NUMPLAYERS:
182 result = A->info.numplayers - B->info.numplayers;
185 result = A->info.numbots - B->info.numbots;
188 result = A->info.numhumans - B->info.numhumans;
191 result = A->info.freeslots - B->info.freeslots;
194 result = A->info.protocol - B->info.protocol;
197 result = strcmp( B->info.cname, A->info.cname );
200 result = strcmp( B->info.game, A->info.game );
203 result = strcmp( B->info.map, A->info.map );
206 result = strcmp( B->info.mod, A->info.mod );
209 result = strcmp( B->info.name, A->info.name );
212 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
216 if( serverlist_sortdescending )
220 // if the chosen sort key is identical, sort by index
221 // (makes this a stable sort, so that later replies from servers won't
222 // shuffle the servers around when they have the same ping)
226 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
228 // This should actually be done with some intermediate and end-of-function return
240 case SLMO_GREATEREQUAL:
242 case SLMO_NOTCONTAIN:
245 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
250 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
253 char bufferA[ 256 ], bufferB[ 256 ]; // should be more than enough
254 for (i = 0;i < (int)sizeof(bufferA)-1 && A[i];i++)
255 bufferA[i] = (A[i] >= 'A' && A[i] <= 'Z') ? (A[i] + 'a' - 'A') : A[i];
257 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
258 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
261 // Same here, also using an intermediate & final return would be more appropriate
265 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
266 case SLMO_NOTCONTAIN:
267 return !*bufferB || !strstr( bufferA, bufferB );
269 return strcmp( bufferA, bufferB ) < 0;
271 return strcmp( bufferA, bufferB ) <= 0;
273 return strcmp( bufferA, bufferB ) == 0;
275 return strcmp( bufferA, bufferB ) > 0;
277 return strcmp( bufferA, bufferB ) != 0;
278 case SLMO_GREATEREQUAL:
279 return strcmp( bufferA, bufferB ) >= 0;
281 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
286 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
288 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
290 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
292 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
294 if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) )
296 if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) )
298 if( !_ServerList_CompareInt( info->freeslots, mask->tests[SLIF_FREESLOTS], mask->info.freeslots ) )
300 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
302 if( *mask->info.cname
303 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
306 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
309 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
312 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
315 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
320 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
324 // reject incompatible servers
325 if (entry->info.gameversion != gameversion.integer)
328 // FIXME: change this to be more readable (...)
329 // now check whether it passes through the masks
330 for( start = 0 ; serverlist_andmasks[start].active && start < SERVERLIST_ANDMASKCOUNT ; start++ )
331 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
334 for( start = 0 ; serverlist_ormasks[start].active && start < SERVERLIST_ORMASKCOUNT ; start++ )
335 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
337 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
340 if( !serverlist_viewcount ) {
341 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
344 // ok, insert it, we just need to find out where exactly:
347 // check whether to insert it as new first item
348 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
349 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
351 } // check whether to insert it as new last item
352 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
353 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
357 end = serverlist_viewcount - 1;
358 while( end > start + 1 )
360 mid = (start + end) / 2;
361 // test the item that lies in the middle between start and end
362 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
363 // the item has to be in the upper half
366 // the item has to be in the lower half
369 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
372 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
375 for( i = 0; i < serverlist_viewcount; i++ )
377 if (serverlist_viewlist[i] == entry)
379 _ServerList_ViewList_Helper_Remove(i);
385 void ServerList_RebuildViewList(void)
389 serverlist_viewcount = 0;
390 for( i = 0 ; i < serverlist_cachecount ; i++ ) {
391 serverlist_entry_t *entry = &serverlist_cache[i];
392 // also display entries that are currently being refreshed [11/8/2007 Black]
393 if( entry->query == SQS_QUERIED || entry->query == SQS_REFRESHING )
394 ServerList_ViewList_Insert( entry );
398 void ServerList_ResetMasks(void)
402 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
403 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
404 // numbots needs to be compared to -1 to always succeed
405 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
406 serverlist_andmasks[i].info.numbots = -1;
407 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
408 serverlist_ormasks[i].info.numbots = -1;
411 void ServerList_GetPlayerStatistics(int *numplayerspointer, int *maxplayerspointer)
414 int numplayers = 0, maxplayers = 0;
415 for (i = 0;i < serverlist_cachecount;i++)
417 if (serverlist_cache[i].query == SQS_QUERIED)
419 numplayers += serverlist_cache[i].info.numhumans;
420 maxplayers += serverlist_cache[i].info.maxplayers;
423 *numplayerspointer = numplayers;
424 *maxplayerspointer = maxplayers;
428 static void _ServerList_Test(void)
431 for( i = 0 ; i < 1024 ; i++ ) {
432 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
433 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
434 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
435 serverlist_cache[serverlist_cachecount].finished = true;
436 sprintf( serverlist_cache[serverlist_cachecount].line1, "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
437 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
438 serverlist_cachecount++;
443 void ServerList_QueryList(qboolean resetcache, qboolean querydp, qboolean queryqw, qboolean consoleoutput)
445 masterquerytime = realtime;
446 masterquerycount = 0;
447 masterreplycount = 0;
449 serverquerycount = 0;
450 serverreplycount = 0;
451 serverlist_cachecount = 0;
452 serverlist_viewcount = 0;
454 // refresh all entries
456 for( n = 0 ; n < serverlist_cachecount ; n++ ) {
457 serverlist_entry_t *entry = &serverlist_cache[ n ];
458 entry->query = SQS_REFRESHING;
459 entry->querycounter = 0;
462 serverlist_consoleoutput = consoleoutput;
464 //_ServerList_Test();
466 NetConn_QueryMasters(querydp, queryqw);
471 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
473 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
477 if (cl_netpacketloss_receive.integer)
478 for (i = 0;i < cl_numsockets;i++)
479 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer)
481 if (developer_networking.integer)
483 char addressstring[128], addressstring2[128];
484 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
487 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
488 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", mysocket, addressstring, data, maxlength, peeraddress, length, addressstring2);
489 Com_HexDumpToConsole((unsigned char *)data, length);
492 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", mysocket, addressstring, data, maxlength, peeraddress, length);
497 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
501 if (cl_netpacketloss_send.integer)
502 for (i = 0;i < cl_numsockets;i++)
503 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer)
505 ret = LHNET_Write(mysocket, data, length, peeraddress);
506 if (developer_networking.integer)
508 char addressstring[128], addressstring2[128];
509 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
510 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
511 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", mysocket, addressstring, data, length, peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
512 Com_HexDumpToConsole((unsigned char *)data, length);
517 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
519 // note this does not include the trailing NULL because we add that in the parser
520 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
523 qboolean NetConn_CanSend(netconn_t *conn)
525 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
526 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
527 conn->outgoing_reliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
528 conn->outgoing_acksize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
529 if (realtime > conn->cleartime)
533 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_CHOKEDPACKET;
538 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate, qboolean quakesignon_suppressreliables)
542 // if this packet was supposedly choked, but we find ourselves sending one
543 // anyway, make sure the size counting starts at zero
544 // (this mostly happens on level changes and disconnects and such)
545 if (conn->outgoing_unreliablesize[conn->outgoing_packetcounter] == NETGRAPH_CHOKEDPACKET)
546 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET;
548 if (protocol == PROTOCOL_QUAKEWORLD)
551 qboolean sendreliable;
553 // note that it is ok to send empty messages to the qw server,
554 // otherwise it won't respond to us at all
556 sendreliable = false;
557 // if the remote side dropped the last reliable message, resend it
558 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
560 // if the reliable transmit buffer is empty, copy the current message out
561 if (!conn->sendMessageLength && conn->message.cursize)
563 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
564 conn->sendMessageLength = conn->message.cursize;
565 SZ_Clear(&conn->message); // clear the message buffer
566 conn->qw.reliable_sequence ^= 1;
569 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
570 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->qw.outgoing_sequence | ((unsigned int)sendreliable<<31));
571 // last received unreliable packet number, and last received reliable packet number (0 or 1)
572 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
574 conn->qw.outgoing_sequence++;
575 // client sends qport in every packet
576 if (conn == cls.netcon)
578 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
580 // also update cls.qw_outgoing_sequence
581 cls.qw_outgoing_sequence = conn->qw.outgoing_sequence;
583 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
585 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
589 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
591 // add the reliable message if there is one
594 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += conn->sendMessageLength;
595 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
596 packetLen += conn->sendMessageLength;
597 conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence;
600 // add the unreliable message if possible
601 if (packetLen + data->cursize <= 1400)
603 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += data->cursize;
604 memcpy(sendbuffer + packetLen, data->data, data->cursize);
605 packetLen += data->cursize;
608 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
611 unreliableMessagesSent++;
613 totallen += packetLen + 28;
617 unsigned int packetLen;
618 unsigned int dataLen;
620 unsigned int *header;
622 // if a reliable message fragment has been lost, send it again
623 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
625 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
627 dataLen = conn->sendMessageLength;
632 dataLen = MAX_PACKETFRAGMENT;
636 packetLen = NET_HEADERSIZE + dataLen;
638 header = (unsigned int *)sendbuffer;
639 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
640 header[1] = BigLong(conn->nq.sendSequence - 1);
641 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
643 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
645 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
647 conn->lastSendTime = realtime;
651 totallen += packetLen + 28;
654 // if we have a new reliable message to send, do so
655 if (!conn->sendMessageLength && conn->message.cursize && !quakesignon_suppressreliables)
657 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
659 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
660 conn->message.overflowed = true;
664 if (developer_networking.integer && conn == cls.netcon)
666 Con_Print("client sending reliable message to server:\n");
667 SZ_HexDumpToConsole(&conn->message);
670 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
671 conn->sendMessageLength = conn->message.cursize;
672 SZ_Clear(&conn->message);
674 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
676 dataLen = conn->sendMessageLength;
681 dataLen = MAX_PACKETFRAGMENT;
685 packetLen = NET_HEADERSIZE + dataLen;
687 header = (unsigned int *)sendbuffer;
688 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
689 header[1] = BigLong(conn->nq.sendSequence);
690 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
692 conn->nq.sendSequence++;
694 conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen;
696 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
698 conn->lastSendTime = realtime;
700 reliableMessagesSent++;
702 totallen += packetLen + 28;
705 // if we have an unreliable message to send, do so
708 packetLen = NET_HEADERSIZE + data->cursize;
710 if (packetLen > (int)sizeof(sendbuffer))
712 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
716 header = (unsigned int *)sendbuffer;
717 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
718 header[1] = BigLong(conn->nq.unreliableSendSequence);
719 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
721 conn->nq.unreliableSendSequence++;
723 conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen;
725 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
728 unreliableMessagesSent++;
730 totallen += packetLen + 28;
734 // delay later packets to obey rate limit
735 if (conn->cleartime < realtime - 0.1)
736 conn->cleartime = realtime - 0.1;
737 conn->cleartime = conn->cleartime + (double)totallen / (double)rate;
738 if (conn->cleartime < realtime)
739 conn->cleartime = realtime;
744 qboolean NetConn_HaveClientPorts(void)
746 return !!cl_numsockets;
749 qboolean NetConn_HaveServerPorts(void)
751 return !!sv_numsockets;
754 void NetConn_CloseClientPorts(void)
756 for (;cl_numsockets > 0;cl_numsockets--)
757 if (cl_sockets[cl_numsockets - 1])
758 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
761 void NetConn_OpenClientPort(const char *addressstring, int defaultport)
763 lhnetaddress_t address;
765 char addressstring2[1024];
766 if (LHNETADDRESS_FromString(&address, addressstring, defaultport))
768 if ((s = LHNET_OpenSocket_Connectionless(&address)))
770 cl_sockets[cl_numsockets++] = s;
771 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
772 Con_Printf("Client opened a socket on address %s\n", addressstring2);
776 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
777 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
781 Con_Printf("Client unable to parse address %s\n", addressstring);
784 void NetConn_OpenClientPorts(void)
787 NetConn_CloseClientPorts();
788 port = bound(0, cl_netport.integer, 65535);
789 if (cl_netport.integer != port)
790 Cvar_SetValueQuick(&cl_netport, port);
791 Con_Printf("Client using port %i\n", port);
792 NetConn_OpenClientPort("local:2", 0);
793 NetConn_OpenClientPort(net_address.string, port);
794 //NetConn_OpenClientPort(net_address_ipv6.string, port);
797 void NetConn_CloseServerPorts(void)
799 for (;sv_numsockets > 0;sv_numsockets--)
800 if (sv_sockets[sv_numsockets - 1])
801 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
804 void NetConn_OpenServerPort(const char *addressstring, int defaultport)
806 lhnetaddress_t address;
809 char addressstring2[1024];
811 for (port = defaultport; port <= defaultport + 100; port++)
813 if (LHNETADDRESS_FromString(&address, addressstring, port))
815 if ((s = LHNET_OpenSocket_Connectionless(&address)))
817 sv_sockets[sv_numsockets++] = s;
818 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
819 Con_Printf("Server listening on address %s\n", addressstring2);
824 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
825 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
830 Con_Printf("Server unable to parse address %s\n", addressstring);
831 // if it cant parse one address, it wont be able to parse another for sure
837 void NetConn_OpenServerPorts(int opennetports)
840 NetConn_CloseServerPorts();
841 NetConn_UpdateSockets();
842 port = bound(0, sv_netport.integer, 65535);
845 Con_Printf("Server using port %i\n", port);
846 if (sv_netport.integer != port)
847 Cvar_SetValueQuick(&sv_netport, port);
848 if (cls.state != ca_dedicated)
849 NetConn_OpenServerPort("local:1", 0);
852 NetConn_OpenServerPort(net_address.string, port);
853 //NetConn_OpenServerPort(net_address_ipv6.string, port);
855 if (sv_numsockets == 0)
856 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
859 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
861 int i, a = LHNETADDRESS_GetAddressType(address);
862 for (i = 0;i < cl_numsockets;i++)
863 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
864 return cl_sockets[i];
868 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
870 int i, a = LHNETADDRESS_GetAddressType(address);
871 for (i = 0;i < sv_numsockets;i++)
872 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
873 return sv_sockets[i];
877 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
880 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
881 conn->mysocket = mysocket;
882 conn->peeraddress = *peeraddress;
883 conn->lastMessageTime = realtime;
884 conn->message.data = conn->messagedata;
885 conn->message.maxsize = sizeof(conn->messagedata);
886 conn->message.cursize = 0;
887 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
888 // reduce effectiveness of connection request floods
889 conn->timeout = realtime + net_connecttimeout.value;
890 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
891 conn->next = netconn_list;
896 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress);
897 void NetConn_Close(netconn_t *conn)
900 // remove connection from list
902 // allow the client to reconnect immediately
903 NetConn_ClearConnectFlood(&(conn->peeraddress));
905 if (conn == netconn_list)
906 netconn_list = conn->next;
909 for (c = netconn_list;c;c = c->next)
913 c->next = conn->next;
917 // not found in list, we'll avoid crashing here...
925 static int clientport = -1;
926 static int clientport2 = -1;
927 static int hostport = -1;
928 void NetConn_UpdateSockets(void)
930 if (cls.state != ca_dedicated)
932 if (clientport2 != cl_netport.integer)
934 clientport2 = cl_netport.integer;
935 if (cls.state == ca_connected)
936 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
938 if (cls.state == ca_disconnected && clientport != clientport2)
940 clientport = clientport2;
941 NetConn_CloseClientPorts();
943 if (cl_numsockets == 0)
944 NetConn_OpenClientPorts();
947 if (hostport != sv_netport.integer)
949 hostport = sv_netport.integer;
951 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
955 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout)
957 int originallength = length;
961 if (protocol == PROTOCOL_QUAKEWORLD)
963 int sequence, sequence_ack;
964 int reliable_ack, reliable_message;
968 sequence = LittleLong(*((int *)(data + 0)));
969 sequence_ack = LittleLong(*((int *)(data + 4)));
973 if (conn != cls.netcon)
978 // 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?)
979 qport = LittleShort(*((int *)(data + 8)));
985 reliable_message = (sequence >> 31) & 1;
986 reliable_ack = (sequence_ack >> 31) & 1;
987 sequence &= ~(1<<31);
988 sequence_ack &= ~(1<<31);
989 if (sequence <= conn->qw.incoming_sequence)
991 //Con_DPrint("Got a stale datagram\n");
994 count = sequence - (conn->qw.incoming_sequence + 1);
997 droppedDatagrams += count;
998 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1001 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1002 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1003 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1004 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1007 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1008 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1009 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1010 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1011 if (reliable_ack == conn->qw.reliable_sequence)
1013 // received, now we will be able to send another reliable message
1014 conn->sendMessageLength = 0;
1015 reliableMessagesReceived++;
1017 conn->qw.incoming_sequence = sequence;
1018 if (conn == cls.netcon)
1019 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
1020 conn->qw.incoming_acknowledged = sequence_ack;
1021 conn->qw.incoming_reliable_acknowledged = reliable_ack;
1022 if (reliable_message)
1023 conn->qw.incoming_reliable_sequence ^= 1;
1024 conn->lastMessageTime = realtime;
1025 conn->timeout = realtime + newtimeout;
1026 unreliableMessagesReceived++;
1027 SZ_Clear(&net_message);
1028 SZ_Write(&net_message, data, length);
1036 unsigned int sequence;
1039 qlength = (unsigned int)BigLong(((int *)data)[0]);
1040 flags = qlength & ~NETFLAG_LENGTH_MASK;
1041 qlength &= NETFLAG_LENGTH_MASK;
1042 // control packets were already handled
1043 if (!(flags & NETFLAG_CTL) && qlength == length)
1045 sequence = BigLong(((int *)data)[1]);
1049 if (flags & NETFLAG_UNRELIABLE)
1051 if (sequence >= conn->nq.unreliableReceiveSequence)
1053 if (sequence > conn->nq.unreliableReceiveSequence)
1055 count = sequence - conn->nq.unreliableReceiveSequence;
1056 droppedDatagrams += count;
1057 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1060 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1061 conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET;
1062 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1063 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1066 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1067 conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength;
1068 conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1069 conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET;
1070 conn->nq.unreliableReceiveSequence = sequence + 1;
1071 conn->lastMessageTime = realtime;
1072 conn->timeout = realtime + newtimeout;
1073 unreliableMessagesReceived++;
1076 SZ_Clear(&net_message);
1077 SZ_Write(&net_message, data, length);
1083 // Con_DPrint("Got a stale datagram\n");
1086 else if (flags & NETFLAG_ACK)
1088 conn->incoming_acksize[conn->incoming_packetcounter] += originallength;
1089 if (sequence == (conn->nq.sendSequence - 1))
1091 if (sequence == conn->nq.ackSequence)
1093 conn->nq.ackSequence++;
1094 if (conn->nq.ackSequence != conn->nq.sendSequence)
1095 Con_DPrint("ack sequencing error\n");
1096 conn->lastMessageTime = realtime;
1097 conn->timeout = realtime + newtimeout;
1098 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1100 unsigned int packetLen;
1101 unsigned int dataLen;
1103 unsigned int *header;
1105 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1106 memmove(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1108 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1110 dataLen = conn->sendMessageLength;
1115 dataLen = MAX_PACKETFRAGMENT;
1119 packetLen = NET_HEADERSIZE + dataLen;
1121 header = (unsigned int *)sendbuffer;
1122 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
1123 header[1] = BigLong(conn->nq.sendSequence);
1124 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1126 conn->nq.sendSequence++;
1128 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1130 conn->lastSendTime = realtime;
1135 conn->sendMessageLength = 0;
1138 // Con_DPrint("Duplicate ACK received\n");
1141 // Con_DPrint("Stale ACK received\n");
1144 else if (flags & NETFLAG_DATA)
1146 unsigned int temppacket[2];
1147 conn->incoming_reliablesize[conn->incoming_packetcounter] += originallength;
1148 conn->outgoing_acksize[conn->outgoing_packetcounter] += 8;
1149 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1150 temppacket[1] = BigLong(sequence);
1151 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1152 if (sequence == conn->nq.receiveSequence)
1154 conn->lastMessageTime = realtime;
1155 conn->timeout = realtime + newtimeout;
1156 conn->nq.receiveSequence++;
1157 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1158 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1159 conn->receiveMessageLength += length;
1161 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1162 "Dropping the message!\n", sequence );
1163 conn->receiveMessageLength = 0;
1166 if (flags & NETFLAG_EOM)
1168 reliableMessagesReceived++;
1169 length = conn->receiveMessageLength;
1170 conn->receiveMessageLength = 0;
1173 SZ_Clear(&net_message);
1174 SZ_Write(&net_message, conn->receiveMessage, length);
1181 receivedDuplicateCount++;
1189 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1191 cls.connect_trying = false;
1192 M_Update_Return_Reason("");
1193 // the connection request succeeded, stop current connection and set up a new connection
1195 // if we're connecting to a remote server, shut down any local server
1196 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1197 Host_ShutdownServer ();
1198 // allocate a net connection to keep track of things
1199 cls.netcon = NetConn_Open(mysocket, peeraddress);
1200 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1201 key_dest = key_game;
1203 cls.demonum = -1; // not in the demo loop now
1204 cls.state = ca_connected;
1205 cls.signon = 0; // need all the signon messages before playing
1206 cls.protocol = initialprotocol;
1207 // reset move sequence numbering on this new connection
1208 cls.movesequence = 1;
1209 cls.servermovesequence = 0;
1210 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1211 Cmd_ForwardStringToServer("new");
1212 if (cls.protocol == PROTOCOL_QUAKE)
1214 // write a keepalive (clc_nop) as it seems to greatly improve the
1215 // chances of connecting to a netquake server
1217 unsigned char buf[4];
1218 memset(&msg, 0, sizeof(msg));
1220 msg.maxsize = sizeof(buf);
1221 MSG_WriteChar(&msg, clc_nop);
1222 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000, false);
1226 int NetConn_IsLocalGame(void)
1228 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1233 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1237 serverlist_entry_t *entry = NULL;
1239 // search the cache for this server and update it
1240 for (n = 0;n < serverlist_cachecount;n++) {
1241 entry = &serverlist_cache[ n ];
1242 if (!strcmp(addressstring, entry->info.cname))
1246 if (n == serverlist_cachecount)
1248 // LAN search doesnt require an answer from the master server so we wont
1249 // know the ping nor will it be initialized already...
1252 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1255 entry = &serverlist_cache[n];
1257 memset(entry, 0, sizeof(*entry));
1258 // store the data the engine cares about (address and ping)
1259 strlcpy(entry->info.cname, addressstring, sizeof(entry->info.cname));
1260 entry->info.ping = 100000;
1261 entry->querytime = realtime;
1262 // if not in the slist menu we should print the server to console
1263 if (serverlist_consoleoutput)
1264 Con_Printf("querying %s\n", addressstring);
1265 ++serverlist_cachecount;
1267 // if this is the first reply from this server, count it as having replied
1268 pingtime = (int)((realtime - entry->querytime) * 1000.0 + 0.5);
1269 pingtime = bound(0, pingtime, 9999);
1270 if (entry->query == SQS_REFRESHING) {
1271 entry->info.ping = pingtime;
1272 entry->query = SQS_QUERIED;
1274 // convert to unsigned to catch the -1
1275 // 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]
1276 entry->info.ping = min((unsigned) entry->info.ping, (unsigned) pingtime);
1280 // other server info is updated by the caller
1284 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1286 serverlist_entry_t *entry = &serverlist_cache[n];
1287 serverlist_info_t *info = &entry->info;
1288 // update description strings for engine menu and console output
1289 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);
1290 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);
1291 if (entry->query == SQS_QUERIED)
1293 if(!serverlist_paused)
1294 ServerList_ViewList_Remove(entry);
1296 // if not in the slist menu we should print the server to console (if wanted)
1297 else if( serverlist_consoleoutput )
1298 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1299 // and finally, update the view set
1300 if(!serverlist_paused)
1301 ServerList_ViewList_Insert( entry );
1302 // update the entry's state
1303 serverlist_cache[n].query = SQS_QUERIED;
1306 // returns true, if it's sensible to continue the processing
1307 static qboolean NetConn_ClientParsePacket_ServerList_PrepareQuery( int protocol, const char *ipstring ) {
1309 serverlist_entry_t *entry;
1311 // ignore the rest of the message if the serverlist is full
1312 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1314 // also ignore it if we have already queried it (other master server response)
1315 for( n = 0 ; n < serverlist_cachecount ; n++ )
1316 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1319 entry = &serverlist_cache[n];
1321 if( n < serverlist_cachecount ) {
1322 // the entry has already been queried once or
1326 memset(entry, 0, sizeof(entry));
1327 entry->protocol = protocol;
1328 // store the data the engine cares about (address and ping)
1329 strlcpy (entry->info.cname, ipstring, sizeof(entry->info.cname));
1331 // no, then reset the ping right away
1332 entry->info.ping = -1;
1333 // we also want to increase the serverlist_cachecount then
1334 serverlist_cachecount++;
1337 entry->query = SQS_QUERYING;
1342 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1344 qboolean fromserver;
1345 int ret, c, control;
1347 char *string, addressstring2[128], ipstring[32];
1348 char stringbuf[16384];
1350 // quakeworld ingame packet
1351 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1353 // convert the address to a string incase we need it
1354 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1356 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1358 // received a command string - strip off the packaging and put it
1359 // into our string buffer with NULL termination
1362 length = min(length, (int)sizeof(stringbuf) - 1);
1363 memcpy(stringbuf, data, length);
1364 stringbuf[length] = 0;
1367 if (developer_networking.integer)
1369 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1370 Com_HexDumpToConsole(data, length);
1373 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1375 // darkplaces or quake3
1376 char protocolnames[1400];
1377 Protocol_Names(protocolnames, sizeof(protocolnames));
1378 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1379 M_Update_Return_Reason("Got challenge response");
1380 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1381 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1382 // TODO: add userinfo stuff here instead of using NQ commands?
1383 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1386 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1388 // darkplaces or quake3
1389 M_Update_Return_Reason("Accepted");
1390 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1393 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1395 char rejectreason[32];
1396 cls.connect_trying = false;
1398 length = max(length - 7, (int)sizeof(rejectreason) - 1);
1399 memcpy(rejectreason, string, length);
1400 rejectreason[length] = 0;
1401 M_Update_Return_Reason(rejectreason);
1404 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1406 serverlist_info_t *info;
1410 // search the cache for this server and update it
1411 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1415 info = &serverlist_cache[n].info;
1420 info->protocol = -1;
1421 info->numplayers = 0;
1423 info->maxplayers = 0;
1424 info->gameversion = 0;
1425 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1426 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1427 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1428 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1429 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1430 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1431 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1432 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1433 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1434 info->numhumans = info->numplayers - max(0, info->numbots);
1435 info->freeslots = info->maxplayers - info->numplayers;
1437 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1441 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1443 // Extract the IP addresses
1447 if (serverlist_consoleoutput)
1448 Con_Print("received DarkPlaces server list...\n");
1449 while (length >= 7 && data[0] == '\\' && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF) && data[5] * 256 + data[6] != 0)
1451 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[1], data[2], data[3], data[4], data[5] * 256 + data[6]);
1452 if (serverlist_consoleoutput && developer_networking.integer)
1453 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1455 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, ipstring ) ) {
1459 // move on to next address in packet
1463 // begin or resume serverlist queries
1464 serverlist_querysleep = false;
1465 serverlist_querywaittime = realtime + 3;
1468 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1470 // Extract the IP addresses
1474 if (serverlist_consoleoutput)
1475 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1476 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1478 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1479 if (serverlist_consoleoutput && developer_networking.integer)
1480 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1482 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, ipstring ) ) {
1486 // move on to next address in packet
1490 // begin or resume serverlist queries
1491 serverlist_querysleep = false;
1492 serverlist_querywaittime = realtime + 3;
1495 if (!strncmp(string, "extResponse ", 12))
1497 ++net_extresponse_count;
1498 if(net_extresponse_count > NET_EXTRESPONSE_MAX)
1499 net_extresponse_count = NET_EXTRESPONSE_MAX;
1500 net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1501 dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
1504 if (!strncmp(string, "ping", 4))
1506 if (developer.integer >= 10)
1507 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
1508 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1511 if (!strncmp(string, "ack", 3))
1513 // QuakeWorld compatibility
1514 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1516 // challenge message
1517 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1518 M_Update_Return_Reason("Got QuakeWorld challenge response");
1519 cls.qw_qport = qport.integer;
1520 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1521 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1522 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1525 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1528 M_Update_Return_Reason("QuakeWorld Accepted");
1529 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1532 if (length > 2 && !memcmp(string, "n\\", 2))
1534 serverlist_info_t *info;
1538 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1539 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1542 // search the cache for this server and update it
1543 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1547 info = &serverlist_cache[n].info;
1548 strlcpy(info->game, "QuakeWorld", sizeof(info->game));;
1549 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1550 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1551 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1553 info->numplayers = 0; // updated below
1554 info->numhumans = 0; // updated below
1555 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1556 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1558 // count active players on server
1559 // (we could gather more info, but we're just after the number)
1560 s = strchr(string, '\n');
1564 while (s < string + length)
1566 for (;s < string + length && *s != '\n';s++)
1568 if (s >= string + length)
1576 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1580 if (string[0] == 'n')
1583 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1585 // we may not have liked the packet, but it was a command packet, so
1586 // we're done processing this packet now
1589 // quakeworld ingame packet
1590 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1593 CL_ParseServerMessage();
1596 // netquake control packets, supported for compatibility only
1597 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1600 serverlist_info_t *info;
1604 SZ_Clear(&net_message);
1605 SZ_Write(&net_message, data, length);
1611 if (developer.integer >= 10)
1612 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1613 if (cls.connect_trying)
1615 lhnetaddress_t clientportaddress;
1616 clientportaddress = *peeraddress;
1617 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1618 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1619 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1620 M_Update_Return_Reason("Accepted");
1621 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1625 if (developer.integer >= 10)
1626 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1627 cls.connect_trying = false;
1628 M_Update_Return_Reason((char *)MSG_ReadString());
1630 case CCREP_SERVER_INFO:
1631 if (developer.integer >= 10)
1632 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1633 // LordHavoc: because the quake server may report weird addresses
1634 // we just ignore it and keep the real address
1636 // search the cache for this server and update it
1637 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1641 info = &serverlist_cache[n].info;
1642 strlcpy(info->game, "Quake", sizeof(info->game));
1643 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1644 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1645 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1646 info->numplayers = MSG_ReadByte();
1647 info->maxplayers = MSG_ReadByte();
1648 info->protocol = MSG_ReadByte();
1650 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1653 case CCREP_PLAYER_INFO:
1654 // we got a CCREP_PLAYER_INFO??
1655 //if (developer.integer >= 10)
1656 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1658 case CCREP_RULE_INFO:
1659 // we got a CCREP_RULE_INFO??
1660 //if (developer.integer >= 10)
1661 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1666 SZ_Clear(&net_message);
1667 // we may not have liked the packet, but it was a valid control
1668 // packet, so we're done processing this packet now
1672 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1673 CL_ParseServerMessage();
1677 void NetConn_QueryQueueFrame(void)
1683 static double querycounter = 0;
1685 if(!net_slist_pause.integer && serverlist_paused)
1686 ServerList_RebuildViewList();
1687 serverlist_paused = net_slist_pause.integer;
1689 if (serverlist_querysleep)
1692 // apply a cool down time after master server replies,
1693 // to avoid messing up the ping times on the servers
1694 if (serverlist_querywaittime > realtime)
1697 // each time querycounter reaches 1.0 issue a query
1698 querycounter += cl.realframetime * net_slist_queriespersecond.value;
1699 maxqueries = (int)querycounter;
1700 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1701 querycounter -= maxqueries;
1703 if( maxqueries == 0 ) {
1707 // scan serverlist and issue queries as needed
1708 serverlist_querysleep = true;
1710 timeouttime = realtime - net_slist_timeout.value;
1711 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
1713 serverlist_entry_t *entry = &serverlist_cache[ index ];
1714 if( entry->query != SQS_QUERYING && entry->query != SQS_REFRESHING )
1719 serverlist_querysleep = false;
1720 if( entry->querycounter != 0 && entry->querytime > timeouttime )
1725 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
1727 lhnetaddress_t address;
1730 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
1731 if (entry->protocol == PROTOCOL_QUAKEWORLD)
1733 for (socket = 0; socket < cl_numsockets ; socket++)
1734 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
1738 for (socket = 0; socket < cl_numsockets ; socket++)
1739 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address);
1742 // update the entry fields
1743 entry->querytime = realtime;
1744 entry->querycounter++;
1746 // if not in the slist menu we should print the server to console
1747 if (serverlist_consoleoutput)
1748 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
1754 // have we tried to refresh this server?
1755 if( entry->query == SQS_REFRESHING ) {
1756 // yes, so update the reply count (since its not responding anymore)
1758 if(!serverlist_paused)
1759 ServerList_ViewList_Remove(entry);
1761 entry->query = SQS_TIMEDOUT;
1766 void NetConn_ClientFrame(void)
1769 lhnetaddress_t peeraddress;
1770 NetConn_UpdateSockets();
1771 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
1773 if (cls.connect_remainingtries == 0)
1774 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
1775 cls.connect_nextsendtime = realtime + 1;
1776 cls.connect_remainingtries--;
1777 if (cls.connect_remainingtries <= -10)
1779 cls.connect_trying = false;
1780 M_Update_Return_Reason("Connect: Failed");
1783 // try challenge first (newer DP server or QW)
1784 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
1785 // then try netquake as a fallback (old server, or netquake)
1786 SZ_Clear(&net_message);
1787 // save space for the header, filled in later
1788 MSG_WriteLong(&net_message, 0);
1789 MSG_WriteByte(&net_message, CCREQ_CONNECT);
1790 MSG_WriteString(&net_message, "QUAKE");
1791 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
1792 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
1793 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
1794 SZ_Clear(&net_message);
1796 for (i = 0;i < cl_numsockets;i++)
1797 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
1798 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
1799 NetConn_QueryQueueFrame();
1800 if (cls.netcon && realtime > cls.netcon->timeout && !sv.active)
1802 Con_Print("Connection timed out\n");
1804 Host_ShutdownServer ();
1808 #define MAX_CHALLENGES 128
1811 lhnetaddress_t address;
1815 challenge[MAX_CHALLENGES];
1817 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
1821 for (i = 0;i < bufferlength - 1;i++)
1825 c = rand () % (127 - 33) + 33;
1826 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
1832 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
1834 unsigned int nb_clients = 0, nb_bots = 0, i;
1837 // How many clients are there?
1838 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1840 if (svs.clients[i].active)
1843 if (!svs.clients[i].netconnection)
1848 // TODO: we should add more information for the full status string
1849 length = dpsnprintf(out_msg, out_size,
1850 "\377\377\377\377%s\x0A"
1851 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
1852 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
1855 fullstatus ? "statusResponse" : "infoResponse",
1856 gamename, com_modname, gameversion.integer, svs.maxclients,
1857 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
1858 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
1859 fullstatus ? "\n" : "");
1861 // Make sure it fits in the buffer
1870 ptr = out_msg + length;
1871 left = (int)out_size - length;
1873 for (i = 0;i < (unsigned int)svs.maxclients;i++)
1875 client_t *cl = &svs.clients[i];
1878 int nameind, cleanind, pingvalue;
1880 char cleanname [sizeof(cl->name)];
1882 // Remove all characters '"' and '\' in the player name
1887 curchar = cl->name[nameind++];
1888 if (curchar != '"' && curchar != '\\')
1890 cleanname[cleanind++] = curchar;
1891 if (cleanind == sizeof(cleanname) - 1)
1894 } while (curchar != '\0');
1896 pingvalue = (int)(cl->ping * 1000.0f);
1897 if(cl->netconnection)
1898 pingvalue = bound(1, pingvalue, 9999);
1901 length = dpsnprintf(ptr, left, "%d %d \"%s\"\n",
1916 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
1918 int floodslotnum, bestfloodslotnum;
1919 double bestfloodtime;
1920 lhnetaddress_t noportpeeraddress;
1921 // see if this is a connect flood
1922 noportpeeraddress = *peeraddress;
1923 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1924 bestfloodslotnum = 0;
1925 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
1926 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1928 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
1930 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
1931 bestfloodslotnum = floodslotnum;
1933 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1935 // this address matches an ongoing flood address
1936 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
1938 // renew the ban on this address so it does not expire
1939 // until the flood has subsided
1940 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
1941 //Con_Printf("Flood detected!\n");
1944 // the flood appears to have subsided, so allow this
1945 bestfloodslotnum = floodslotnum; // reuse the same slot
1949 // begin a new timeout on this address
1950 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
1951 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
1952 //Con_Printf("Flood detection initiated!\n");
1956 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
1959 lhnetaddress_t noportpeeraddress;
1960 // see if this is a connect flood
1961 noportpeeraddress = *peeraddress;
1962 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
1963 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
1965 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
1967 // this address matches an ongoing flood address
1969 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
1970 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
1971 //Con_Printf("Flood cleared!\n");
1976 qboolean RCon_Authenticate(const char *password, const char *s, const char *endpos)
1980 if(!strcmp(rcon_password.string, password))
1983 if(strcmp(rcon_restricted_password.string, password))
1986 for(text = s; text != endpos; ++text)
1987 if(*text > 0 && (*text < ' ' || *text == ';'))
1988 return false; // block possible exploits against the parser/alias expansion
1992 size_t l = strlen(s);
1997 if (!COM_ParseToken_Console(&text))
2000 // com_token now contains the command
2001 if(!strstr(va(" %s ", rcon_restricted_commands.string), va(" %s ", com_token)))
2010 extern void SV_SendServerinfo (client_t *client);
2011 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
2013 int i, ret, clientnum, best;
2016 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
2017 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
2022 // convert the address to a string incase we need it
2023 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
2025 // see if we can identify the sender as a local player
2026 // (this is necessary for rcon to send a reliable reply if the client is
2027 // actually on the server, not sending remotely)
2028 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2029 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
2031 if (i == svs.maxclients)
2034 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
2036 // received a command string - strip off the packaging and put it
2037 // into our string buffer with NULL termination
2040 length = min(length, (int)sizeof(stringbuf) - 1);
2041 memcpy(stringbuf, data, length);
2042 stringbuf[length] = 0;
2045 if (developer.integer >= 10)
2047 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
2048 Com_HexDumpToConsole(data, length);
2051 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
2053 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
2055 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
2057 if (besttime > challenge[i].time)
2058 besttime = challenge[best = i].time;
2060 // if we did not find an exact match, choose the oldest and
2061 // update address and string
2062 if (i == MAX_CHALLENGES)
2065 challenge[i].address = *peeraddress;
2066 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
2068 challenge[i].time = realtime;
2069 // send the challenge
2070 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
2073 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
2078 if (!(s = SearchInfostring(string, "challenge")))
2080 // validate the challenge
2081 for (i = 0;i < MAX_CHALLENGES;i++)
2082 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
2084 // if the challenge is not recognized, drop the packet
2085 if (i == MAX_CHALLENGES)
2088 // check engine protocol
2089 if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3"))
2091 if (developer.integer >= 10)
2092 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
2093 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
2097 // see if this is a duplicate connection request or a disconnected
2098 // client who is rejoining to the same client slot
2099 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2101 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2103 // this is a known client...
2104 if (client->spawned)
2106 // client crashed and is coming back,
2107 // keep their stuff intact
2108 if (developer.integer >= 10)
2109 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2110 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2112 SV_SendServerinfo(client);
2117 // client is still trying to connect,
2118 // so we send a duplicate reply
2119 if (developer.integer >= 10)
2120 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2121 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2127 if (NetConn_PreventConnectFlood(peeraddress))
2130 // find an empty client slot for this new client
2131 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2134 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2136 // allocated connection
2137 if (developer.integer >= 10)
2138 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2139 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2140 // now set up the client
2142 SV_ConnectClient(clientnum, conn);
2144 NetConn_Heartbeat(1);
2149 // no empty slots found - server is full
2150 if (developer.integer >= 10)
2151 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2152 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2156 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2158 const char *challenge = NULL;
2160 // If there was a challenge in the getinfo message
2161 if (length > 8 && string[7] == ' ')
2162 challenge = string + 8;
2164 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2166 if (developer.integer >= 10)
2167 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
2168 NetConn_WriteString(mysocket, response, peeraddress);
2172 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2174 const char *challenge = NULL;
2176 // If there was a challenge in the getinfo message
2177 if (length > 10 && string[9] == ' ')
2178 challenge = string + 10;
2180 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2182 if (developer.integer >= 10)
2183 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
2184 NetConn_WriteString(mysocket, response, peeraddress);
2188 if (length >= 5 && !memcmp(string, "rcon ", 5))
2191 char *s = string + 5;
2192 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2194 for (i = 0;*s > ' ';s++)
2195 if (i < (int)sizeof(password) - 1)
2197 if(*s <= ' ' && s != endpos) // skip leading ugly space
2200 if (password[0] > ' ')
2202 if (RCon_Authenticate(password, s, endpos))
2204 // looks like a legitimate rcon command with the correct password
2206 Con_Printf("server received rcon command from %s:\n", host_client ? host_client->name : addressstring2);
2207 while(s_ptr != endpos)
2209 size_t l = strlen(s_ptr);
2211 Con_Printf(" %s;", s_ptr);
2215 rcon_redirect = true;
2216 rcon_redirect_bufferpos = 0;
2219 size_t l = strlen(s);
2221 Cmd_ExecuteString(s, src_command);
2224 rcon_redirect_buffer[rcon_redirect_bufferpos] = 0;
2225 rcon_redirect = false;
2226 // print resulting text to client
2227 // if client is playing, send a reliable reply instead of
2231 // if the netconnection is loop, then this is the
2232 // local player on a listen mode server, and it would
2233 // result in duplicate printing to the console
2234 // (not that the local player should be using rcon
2235 // when they have the console)
2236 if (host_client->netconnection && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2237 SV_ClientPrintf("%s", rcon_redirect_buffer);
2242 dpsnprintf(response, sizeof(response), "\377\377\377\377n%s", rcon_redirect_buffer);
2243 NetConn_WriteString(mysocket, response, peeraddress);
2248 Con_Printf("server denied rcon access to %s\n", host_client ? host_client->name : addressstring2);
2253 if (!strncmp(string, "ping", 4))
2255 if (developer.integer >= 10)
2256 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
2257 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2260 if (!strncmp(string, "ack", 3))
2262 // we may not have liked the packet, but it was a command packet, so
2263 // we're done processing this packet now
2266 // netquake control packets, supported for compatibility only, and only
2267 // when running game protocols that are normally served via this connection
2269 // (this protects more modern protocols against being used for
2270 // Quake packet flood Denial Of Service attacks)
2271 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))
2275 const char *protocolname;
2278 SZ_Clear(&net_message);
2279 SZ_Write(&net_message, data, length);
2285 if (developer.integer >= 10)
2286 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2287 if(!islocal && sv_public.integer <= -2)
2290 protocolname = MSG_ReadString();
2291 protocolnumber = MSG_ReadByte();
2292 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2294 if (developer.integer >= 10)
2295 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2296 SZ_Clear(&net_message);
2297 // save space for the header, filled in later
2298 MSG_WriteLong(&net_message, 0);
2299 MSG_WriteByte(&net_message, CCREP_REJECT);
2300 MSG_WriteString(&net_message, "Incompatible version.\n");
2301 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2302 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2303 SZ_Clear(&net_message);
2307 // see if this connect request comes from a known client
2308 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2310 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2312 // this is either a duplicate connection request
2313 // or coming back from a timeout
2314 // (if so, keep their stuff intact)
2317 if (developer.integer >= 10)
2318 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2319 SZ_Clear(&net_message);
2320 // save space for the header, filled in later
2321 MSG_WriteLong(&net_message, 0);
2322 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2323 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2324 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2325 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2326 SZ_Clear(&net_message);
2328 // if client is already spawned, re-send the
2329 // serverinfo message as they'll need it to play
2330 if (client->spawned)
2333 SV_SendServerinfo(client);
2340 // this is a new client, check for connection flood
2341 if (NetConn_PreventConnectFlood(peeraddress))
2344 // find a slot for the new client
2345 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2348 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2350 // connect to the client
2351 // everything is allocated, just fill in the details
2352 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2353 if (developer.integer >= 10)
2354 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2355 // send back the info about the server connection
2356 SZ_Clear(&net_message);
2357 // save space for the header, filled in later
2358 MSG_WriteLong(&net_message, 0);
2359 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2360 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2361 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2362 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2363 SZ_Clear(&net_message);
2364 // now set up the client struct
2366 SV_ConnectClient(clientnum, conn);
2368 NetConn_Heartbeat(1);
2373 if (developer.integer >= 10)
2374 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2375 // no room; try to let player know
2376 SZ_Clear(&net_message);
2377 // save space for the header, filled in later
2378 MSG_WriteLong(&net_message, 0);
2379 MSG_WriteByte(&net_message, CCREP_REJECT);
2380 MSG_WriteString(&net_message, "Server is full.\n");
2381 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2382 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2383 SZ_Clear(&net_message);
2385 case CCREQ_SERVER_INFO:
2386 if (developer.integer >= 10)
2387 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2388 if(!islocal && sv_public.integer <= -1)
2390 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2393 char myaddressstring[128];
2394 if (developer.integer >= 10)
2395 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2396 SZ_Clear(&net_message);
2397 // save space for the header, filled in later
2398 MSG_WriteLong(&net_message, 0);
2399 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2400 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2401 MSG_WriteString(&net_message, myaddressstring);
2402 MSG_WriteString(&net_message, hostname.string);
2403 MSG_WriteString(&net_message, sv.name);
2404 // How many clients are there?
2405 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2406 if (svs.clients[i].active)
2408 MSG_WriteByte(&net_message, numclients);
2409 MSG_WriteByte(&net_message, svs.maxclients);
2410 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2411 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2412 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2413 SZ_Clear(&net_message);
2416 case CCREQ_PLAYER_INFO:
2417 if (developer.integer >= 10)
2418 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2419 if(!islocal && sv_public.integer <= -1)
2423 int playerNumber, activeNumber, clientNumber;
2426 playerNumber = MSG_ReadByte();
2428 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2429 if (client->active && ++activeNumber == playerNumber)
2431 if (clientNumber != svs.maxclients)
2433 SZ_Clear(&net_message);
2434 // save space for the header, filled in later
2435 MSG_WriteLong(&net_message, 0);
2436 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2437 MSG_WriteByte(&net_message, playerNumber);
2438 MSG_WriteString(&net_message, client->name);
2439 MSG_WriteLong(&net_message, client->colors);
2440 MSG_WriteLong(&net_message, client->frags);
2441 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2442 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2443 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2444 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2445 SZ_Clear(&net_message);
2449 case CCREQ_RULE_INFO:
2450 if (developer.integer >= 10)
2451 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2452 if(!islocal && sv_public.integer <= -1)
2459 // find the search start location
2460 prevCvarName = MSG_ReadString();
2461 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2463 // send the response
2464 SZ_Clear(&net_message);
2465 // save space for the header, filled in later
2466 MSG_WriteLong(&net_message, 0);
2467 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2470 MSG_WriteString(&net_message, var->name);
2471 MSG_WriteString(&net_message, var->string);
2473 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2474 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2475 SZ_Clear(&net_message);
2481 SZ_Clear(&net_message);
2482 // we may not have liked the packet, but it was a valid control
2483 // packet, so we're done processing this packet now
2488 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
2491 SV_ReadClientMessage();
2499 void NetConn_ServerFrame(void)
2502 lhnetaddress_t peeraddress;
2503 for (i = 0;i < sv_numsockets;i++)
2504 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2505 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2506 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2508 // never timeout loopback connections
2509 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2511 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
2513 SV_DropClient(false);
2519 void NetConn_SleepMicroseconds(int microseconds)
2521 LHNET_SleepUntilPacket_Microseconds(microseconds);
2524 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
2528 lhnetaddress_t masteraddress;
2529 lhnetaddress_t broadcastaddress;
2532 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
2535 // 26000 is the default quake server port, servers on other ports will not
2537 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
2538 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
2542 for (i = 0;i < cl_numsockets;i++)
2546 // search LAN for Quake servers
2547 SZ_Clear(&net_message);
2548 // save space for the header, filled in later
2549 MSG_WriteLong(&net_message, 0);
2550 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
2551 MSG_WriteString(&net_message, "QUAKE");
2552 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2553 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2554 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
2555 SZ_Clear(&net_message);
2557 // search LAN for DarkPlaces servers
2558 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getinfo", &broadcastaddress);
2560 // build the getservers message to send to the dpmaster master servers
2561 dpsnprintf(request, sizeof(request), "\377\377\377\377getservers %s %u empty full\x0A", gamename, NET_PROTOCOL_VERSION);
2564 for (masternum = 0;sv_masters[masternum].name;masternum++)
2566 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])))
2569 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
2576 // only query QuakeWorld servers when the user wants to
2579 for (i = 0;i < cl_numsockets;i++)
2583 // search LAN for QuakeWorld servers
2584 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
2586 // build the getservers message to send to the qwmaster master servers
2587 // note this has no -1 prefix, and the trailing nul byte is sent
2588 dpsnprintf(request, sizeof(request), "c\n");
2591 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
2593 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
2595 if (m_state != m_slist)
2597 char lookupstring[128];
2598 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
2599 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
2602 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
2608 if (!masterquerycount)
2610 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
2611 M_Update_Return_Reason("No network");
2615 void NetConn_Heartbeat(int priority)
2617 lhnetaddress_t masteraddress;
2619 lhnetsocket_t *mysocket;
2621 // if it's a state change (client connected), limit next heartbeat to no
2622 // more than 30 sec in the future
2623 if (priority == 1 && nextheartbeattime > realtime + 30.0)
2624 nextheartbeattime = realtime + 30.0;
2626 // limit heartbeatperiod to 30 to 270 second range,
2627 // lower limit is to avoid abusing master servers with excess traffic,
2628 // upper limit is to avoid timing out on the master server (which uses
2630 if (sv_heartbeatperiod.value < 30)
2631 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
2632 if (sv_heartbeatperiod.value > 270)
2633 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
2635 // make advertising optional and don't advertise singleplayer games, and
2636 // only send a heartbeat as often as the admin wants
2637 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
2639 nextheartbeattime = realtime + sv_heartbeatperiod.value;
2640 for (masternum = 0;sv_masters[masternum].name;masternum++)
2641 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
2642 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
2646 static void Net_Heartbeat_f(void)
2649 NetConn_Heartbeat(2);
2651 Con_Print("No server running, can not heartbeat to master server.\n");
2654 void PrintStats(netconn_t *conn)
2656 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
2657 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->qw.outgoing_sequence, conn->qw.incoming_sequence);
2659 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
2662 void Net_Stats_f(void)
2665 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
2666 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
2667 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
2668 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
2669 Con_Printf("packetsSent = %i\n", packetsSent);
2670 Con_Printf("packetsReSent = %i\n", packetsReSent);
2671 Con_Printf("packetsReceived = %i\n", packetsReceived);
2672 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
2673 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
2674 Con_Print("connections =\n");
2675 for (conn = netconn_list;conn;conn = conn->next)
2679 void Net_Refresh_f(void)
2681 if (m_state != m_slist) {
2682 Con_Print("Sending new requests to master servers\n");
2683 ServerList_QueryList(false, true, false, true);
2684 Con_Print("Listening for replies...\n");
2686 ServerList_QueryList(false, true, false, false);
2689 void Net_Slist_f(void)
2691 ServerList_ResetMasks();
2692 serverlist_sortbyfield = SLIF_PING;
2693 serverlist_sortdescending = false;
2694 if (m_state != m_slist) {
2695 Con_Print("Sending requests to master servers\n");
2696 ServerList_QueryList(true, true, false, true);
2697 Con_Print("Listening for replies...\n");
2699 ServerList_QueryList(true, true, false, false);
2702 void Net_SlistQW_f(void)
2704 ServerList_ResetMasks();
2705 serverlist_sortbyfield = SLIF_PING;
2706 serverlist_sortdescending = false;
2707 if (m_state != m_slist) {
2708 Con_Print("Sending requests to master servers\n");
2709 ServerList_QueryList(true, false, true, true);
2710 serverlist_consoleoutput = true;
2711 Con_Print("Listening for replies...\n");
2713 ServerList_QueryList(true, false, true, false);
2716 void NetConn_Init(void)
2719 lhnetaddress_t tempaddress;
2720 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
2721 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
2722 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
2723 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
2724 Cmd_AddCommand("net_refresh", Net_Refresh_f, "query dp master servers and refresh all server information");
2725 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
2726 Cvar_RegisterVariable(&rcon_restricted_password);
2727 Cvar_RegisterVariable(&rcon_restricted_commands);
2728 Cvar_RegisterVariable(&net_slist_queriespersecond);
2729 Cvar_RegisterVariable(&net_slist_queriesperframe);
2730 Cvar_RegisterVariable(&net_slist_timeout);
2731 Cvar_RegisterVariable(&net_slist_maxtries);
2732 Cvar_RegisterVariable(&net_slist_pause);
2733 Cvar_RegisterVariable(&net_messagetimeout);
2734 Cvar_RegisterVariable(&net_connecttimeout);
2735 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
2736 Cvar_RegisterVariable(&cl_netlocalping);
2737 Cvar_RegisterVariable(&cl_netpacketloss_send);
2738 Cvar_RegisterVariable(&cl_netpacketloss_receive);
2739 Cvar_RegisterVariable(&hostname);
2740 Cvar_RegisterVariable(&developer_networking);
2741 Cvar_RegisterVariable(&cl_netport);
2742 Cvar_RegisterVariable(&sv_netport);
2743 Cvar_RegisterVariable(&net_address);
2744 //Cvar_RegisterVariable(&net_address_ipv6);
2745 Cvar_RegisterVariable(&sv_public);
2746 Cvar_RegisterVariable(&sv_heartbeatperiod);
2747 for (i = 0;sv_masters[i].name;i++)
2748 Cvar_RegisterVariable(&sv_masters[i]);
2749 Cvar_RegisterVariable(&gameversion);
2750 // 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.
2751 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
2753 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
2755 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
2756 Cvar_SetQuick(&net_address, com_argv[i + 1]);
2759 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
2761 // 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
2762 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
2764 i = atoi(com_argv[i + 1]);
2765 if (i >= 0 && i < 65536)
2767 Con_Printf("-port option used, setting port cvar to %i\n", i);
2768 Cvar_SetValueQuick(&sv_netport, i);
2771 Con_Printf("-port option used, but %i is not a valid port number\n", i);
2775 net_message.data = net_message_buf;
2776 net_message.maxsize = sizeof(net_message_buf);
2777 net_message.cursize = 0;
2781 void NetConn_Shutdown(void)
2783 NetConn_CloseClientPorts();
2784 NetConn_CloseServerPorts();