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 // for secure rcon authentication
31 #define QWMASTER_PORT 27000
32 #define DPMASTER_PORT 27950
34 // note this defaults on for dedicated servers, off for listen servers
35 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"};
36 static cvar_t sv_heartbeatperiod = {CVAR_SAVE, "sv_heartbeatperiod", "120", "how often to send heartbeat in seconds (only used if sv_public is 1)"};
38 static cvar_t sv_masters [] =
40 {CVAR_SAVE, "sv_master1", "", "user-chosen master server 1"},
41 {CVAR_SAVE, "sv_master2", "", "user-chosen master server 2"},
42 {CVAR_SAVE, "sv_master3", "", "user-chosen master server 3"},
43 {CVAR_SAVE, "sv_master4", "", "user-chosen master server 4"},
44 {0, "sv_masterextra1", "69.59.212.88", "ghdigital.com - default master server 1 (admin: LordHavoc)"}, // admin: LordHavoc
45 {0, "sv_masterextra2", "64.22.107.125", "dpmaster.deathmask.net - default master server 2 (admin: Willis)"}, // admin: Willis
46 {0, "sv_masterextra3", "92.62.40.73", "dpmaster.tchr.no - default master server 3 (admin: tChr)"}, // admin: tChr
50 static cvar_t sv_qwmasters [] =
52 {CVAR_SAVE, "sv_qwmaster1", "", "user-chosen qwmaster server 1"},
53 {CVAR_SAVE, "sv_qwmaster2", "", "user-chosen qwmaster server 2"},
54 {CVAR_SAVE, "sv_qwmaster3", "", "user-chosen qwmaster server 3"},
55 {CVAR_SAVE, "sv_qwmaster4", "", "user-chosen qwmaster server 4"},
56 {0, "sv_qwmasterextra1", "master.quakeservers.net:27000", "Global master server. (admin: unknown)"},
57 {0, "sv_qwmasterextra2", "asgaard.morphos-team.net:27000", "Global master server. (admin: unknown)"},
58 {0, "sv_qwmasterextra3", "qwmaster.ocrana.de:27000", "German master server. (admin: unknown)"},
59 {0, "sv_qwmasterextra4", "masterserver.exhale.de:27000", "German master server. (admin: unknown)"},
60 {0, "sv_qwmasterextra5", "kubus.rulez.pl:27000", "Poland master server. (admin: unknown)"},
64 static double nextheartbeattime = 0;
66 sizebuf_t net_message;
67 static unsigned char net_message_buf[NET_MAXMESSAGE];
69 cvar_t net_messagetimeout = {0, "net_messagetimeout","300", "drops players who have not sent any packets for this many seconds"};
70 cvar_t net_connecttimeout = {0, "net_connecttimeout","15", "after requesting a connection, the client must reply within this many seconds or be dropped (cuts down on connect floods). Must be above 10 seconds."};
71 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)"};
72 cvar_t hostname = {CVAR_SAVE, "hostname", "UNNAMED", "server message to show in server browser"};
73 cvar_t developer_networking = {0, "developer_networking", "0", "prints all received and sent packets (recommended only for debugging)"};
75 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)"};
76 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)"};
77 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)"};
78 static cvar_t net_slist_queriespersecond = {0, "net_slist_queriespersecond", "20", "how many server information requests to send per second"};
79 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)"};
80 static cvar_t net_slist_timeout = {0, "net_slist_timeout", "4", "how long to listen for a server information response before giving up"};
81 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"};
82 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)"};
83 static cvar_t net_slist_favorites = {CVAR_SAVE | CVAR_NQUSERINFOHACK, "net_slist_favorites", "", "contains a list of IP addresses and ports to always query explicitly"};
84 static cvar_t gameversion = {0, "gameversion", "0", "version of game data (mod-specific) to be sent to querying clients"};
85 static cvar_t gameversion_min = {0, "gameversion_min", "-1", "minimum version of game data (mod-specific), when client and server gameversion mismatch in the server browser the server is shown as incompatible; if -1, gameversion is used alone"};
86 static cvar_t gameversion_max = {0, "gameversion_max", "-1", "maximum version of game data (mod-specific), when client and server gameversion mismatch in the server browser the server is shown as incompatible; if -1, gameversion is used alone"};
87 static cvar_t rcon_restricted_password = {CVAR_PRIVATE, "rcon_restricted_password", "", "password to authenticate rcon commands in restricted mode; may be set to a string of the form user1:pass1 user2:pass2 user3:pass3 to allow multiple user accounts - the client then has to specify ONE of these combinations"};
88 static cvar_t rcon_restricted_commands = {0, "rcon_restricted_commands", "", "allowed commands for rcon when the restricted mode password was used"};
89 static cvar_t rcon_secure_maxdiff = {0, "rcon_secure_maxdiff", "5", "maximum time difference between rcon request and server system clock (to protect against replay attack)"};
90 extern cvar_t rcon_secure;
91 extern cvar_t rcon_secure_challengetimeout;
93 /* statistic counters */
94 static int packetsSent = 0;
95 static int packetsReSent = 0;
96 static int packetsReceived = 0;
97 static int receivedDuplicateCount = 0;
98 static int droppedDatagrams = 0;
100 static int unreliableMessagesSent = 0;
101 static int unreliableMessagesReceived = 0;
102 static int reliableMessagesSent = 0;
103 static int reliableMessagesReceived = 0;
105 double masterquerytime = -1000;
106 int masterquerycount = 0;
107 int masterreplycount = 0;
108 int serverquerycount = 0;
109 int serverreplycount = 0;
111 /// this is only false if there are still servers left to query
112 static qboolean serverlist_querysleep = true;
113 static qboolean serverlist_paused = false;
114 /// this is pushed a second or two ahead of realtime whenever a master server
115 /// reply is received, to avoid issuing queries while master replies are still
116 /// flooding in (which would make a mess of the ping times)
117 static double serverlist_querywaittime = 0;
119 static unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
120 static unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
122 static int cl_numsockets;
123 static lhnetsocket_t *cl_sockets[16];
124 static int sv_numsockets;
125 static lhnetsocket_t *sv_sockets[16];
127 netconn_t *netconn_list = NULL;
128 mempool_t *netconn_mempool = NULL;
130 cvar_t cl_netport = {0, "cl_port", "0", "forces client to use chosen port number if not 0"};
131 cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to"};
132 cvar_t net_address = {0, "net_address", "", "network address to open ipv4 ports on (if empty, use default interfaces)"};
133 cvar_t net_address_ipv6 = {0, "net_address_ipv6", "", "network address to open ipv6 ports on (if empty, use default interfaces)"};
135 char cl_net_extresponse[NET_EXTRESPONSE_MAX][1400];
136 int cl_net_extresponse_count = 0;
137 int cl_net_extresponse_last = 0;
139 char sv_net_extresponse[NET_EXTRESPONSE_MAX][1400];
140 int sv_net_extresponse_count = 0;
141 int sv_net_extresponse_last = 0;
143 // ServerList interface
144 serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT];
145 serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT];
147 serverlist_infofield_t serverlist_sortbyfield;
148 int serverlist_sortflags;
150 int serverlist_viewcount = 0;
151 serverlist_entry_t *serverlist_viewlist[SERVERLIST_VIEWLISTSIZE];
153 int serverlist_cachecount;
154 serverlist_entry_t serverlist_cache[SERVERLIST_TOTALSIZE];
156 qboolean serverlist_consoleoutput;
158 static int nFavorites = 0;
159 static lhnetaddress_t favorites[256];
161 void NetConn_UpdateFavorites(void)
165 p = net_slist_favorites.string;
166 while((size_t) nFavorites < sizeof(favorites) / sizeof(*favorites) && COM_ParseToken_Console(&p))
168 if(LHNETADDRESS_FromString(&favorites[nFavorites], com_token, 26000))
173 /// helper function to insert a value into the viewset
174 /// spare entries will be removed
175 static void _ServerList_ViewList_Helper_InsertBefore( int index, serverlist_entry_t *entry )
178 if( serverlist_viewcount < SERVERLIST_VIEWLISTSIZE ) {
179 i = serverlist_viewcount++;
181 i = SERVERLIST_VIEWLISTSIZE - 1;
184 for( ; i > index ; i-- )
185 serverlist_viewlist[ i ] = serverlist_viewlist[ i - 1 ];
187 serverlist_viewlist[index] = entry;
190 /// we suppose serverlist_viewcount to be valid, ie > 0
191 static void _ServerList_ViewList_Helper_Remove( int index )
193 serverlist_viewcount--;
194 for( ; index < serverlist_viewcount ; index++ )
195 serverlist_viewlist[index] = serverlist_viewlist[index + 1];
198 /// \returns true if A should be inserted before B
199 static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_entry_t *B )
201 int result = 0; // > 0 if for numbers A > B and for text if A < B
203 if( serverlist_sortflags & SLSF_FAVORITESFIRST )
205 if(A->info.isfavorite != B->info.isfavorite)
206 return A->info.isfavorite;
209 switch( serverlist_sortbyfield ) {
211 result = A->info.ping - B->info.ping;
213 case SLIF_MAXPLAYERS:
214 result = A->info.maxplayers - B->info.maxplayers;
216 case SLIF_NUMPLAYERS:
217 result = A->info.numplayers - B->info.numplayers;
220 result = A->info.numbots - B->info.numbots;
223 result = A->info.numhumans - B->info.numhumans;
226 result = A->info.freeslots - B->info.freeslots;
229 result = A->info.protocol - B->info.protocol;
232 result = strcmp( B->info.cname, A->info.cname );
235 result = strcasecmp( B->info.game, A->info.game );
238 result = strcasecmp( B->info.map, A->info.map );
241 result = strcasecmp( B->info.mod, A->info.mod );
244 result = strcasecmp( B->info.name, A->info.name );
247 result = strcasecmp( B->info.qcstatus, A->info.qcstatus ); // not really THAT useful, though
249 case SLIF_ISFAVORITE:
250 result = !!B->info.isfavorite - !!A->info.isfavorite;
253 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
259 if( serverlist_sortflags & SLSF_DESCENDING )
265 // if the chosen sort key is identical, sort by index
266 // (makes this a stable sort, so that later replies from servers won't
267 // shuffle the servers around when they have the same ping)
271 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
273 // This should actually be done with some intermediate and end-of-function return
285 case SLMO_GREATEREQUAL:
287 case SLMO_NOTCONTAIN:
288 case SLMO_STARTSWITH:
289 case SLMO_NOTSTARTSWITH:
292 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
297 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
300 char bufferA[ 1400 ], bufferB[ 1400 ]; // should be more than enough
301 COM_StringDecolorize(A, 0, bufferA, sizeof(bufferA), false);
302 for (i = 0;i < (int)sizeof(bufferA)-1 && bufferA[i];i++)
303 bufferA[i] = (bufferA[i] >= 'A' && bufferA[i] <= 'Z') ? (bufferA[i] + 'a' - 'A') : bufferA[i];
305 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
306 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
309 // Same here, also using an intermediate & final return would be more appropriate
313 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
314 case SLMO_NOTCONTAIN:
315 return !*bufferB || !strstr( bufferA, bufferB );
316 case SLMO_STARTSWITH:
317 //Con_Printf("startsWith: %s %s\n", bufferA, bufferB);
318 return *bufferB && !memcmp(bufferA, bufferB, strlen(bufferB));
319 case SLMO_NOTSTARTSWITH:
320 return !*bufferB || memcmp(bufferA, bufferB, strlen(bufferB));
322 return strcmp( bufferA, bufferB ) < 0;
324 return strcmp( bufferA, bufferB ) <= 0;
326 return strcmp( bufferA, bufferB ) == 0;
328 return strcmp( bufferA, bufferB ) > 0;
330 return strcmp( bufferA, bufferB ) != 0;
331 case SLMO_GREATEREQUAL:
332 return strcmp( bufferA, bufferB ) >= 0;
334 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
339 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
341 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
343 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
345 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
347 if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) )
349 if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) )
351 if( !_ServerList_CompareInt( info->freeslots, mask->tests[SLIF_FREESLOTS], mask->info.freeslots ) )
353 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
355 if( *mask->info.cname
356 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
359 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
362 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
365 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
368 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
370 if( *mask->info.qcstatus
371 && !_ServerList_CompareStr( info->qcstatus, mask->tests[SLIF_QCSTATUS], mask->info.qcstatus ) )
373 if( *mask->info.players
374 && !_ServerList_CompareStr( info->players, mask->tests[SLIF_PLAYERS], mask->info.players ) )
376 if( !_ServerList_CompareInt( info->isfavorite, mask->tests[SLIF_ISFAVORITE], mask->info.isfavorite ))
381 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
383 int start, end, mid, i;
386 // reject incompatible servers
388 entry->info.gameversion != gameversion.integer
391 gameversion_min.integer >= 0 // min/max range set by user/mod?
392 && gameversion_max.integer >= 0
393 && gameversion_min.integer >= entry->info.gameversion // version of server in min/max range?
394 && gameversion_max.integer <= entry->info.gameversion
399 // refresh the "favorite" status
400 entry->info.isfavorite = false;
401 if(LHNETADDRESS_FromString(&addr, entry->info.cname, 26000))
403 for(i = 0; i < nFavorites; ++i)
405 if(LHNETADDRESS_Compare(&addr, &favorites[i]) == 0)
407 entry->info.isfavorite = true;
413 // FIXME: change this to be more readable (...)
414 // now check whether it passes through the masks
415 for( start = 0 ; start < SERVERLIST_ANDMASKCOUNT && serverlist_andmasks[start].active; start++ )
416 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
419 for( start = 0 ; start < SERVERLIST_ORMASKCOUNT && serverlist_ormasks[start].active ; start++ )
420 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
422 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
425 if( !serverlist_viewcount ) {
426 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
429 // ok, insert it, we just need to find out where exactly:
432 // check whether to insert it as new first item
433 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
434 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
436 } // check whether to insert it as new last item
437 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
438 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
442 end = serverlist_viewcount - 1;
443 while( end > start + 1 )
445 mid = (start + end) / 2;
446 // test the item that lies in the middle between start and end
447 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
448 // the item has to be in the upper half
451 // the item has to be in the lower half
454 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
457 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
460 for( i = 0; i < serverlist_viewcount; i++ )
462 if (serverlist_viewlist[i] == entry)
464 _ServerList_ViewList_Helper_Remove(i);
470 void ServerList_RebuildViewList(void)
474 serverlist_viewcount = 0;
475 for( i = 0 ; i < serverlist_cachecount ; i++ ) {
476 serverlist_entry_t *entry = &serverlist_cache[i];
477 // also display entries that are currently being refreshed [11/8/2007 Black]
478 if( entry->query == SQS_QUERIED || entry->query == SQS_REFRESHING )
479 ServerList_ViewList_Insert( entry );
483 void ServerList_ResetMasks(void)
487 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
488 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
489 // numbots needs to be compared to -1 to always succeed
490 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
491 serverlist_andmasks[i].info.numbots = -1;
492 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
493 serverlist_ormasks[i].info.numbots = -1;
496 void ServerList_GetPlayerStatistics(int *numplayerspointer, int *maxplayerspointer)
499 int numplayers = 0, maxplayers = 0;
500 for (i = 0;i < serverlist_cachecount;i++)
502 if (serverlist_cache[i].query == SQS_QUERIED)
504 numplayers += serverlist_cache[i].info.numhumans;
505 maxplayers += serverlist_cache[i].info.maxplayers;
508 *numplayerspointer = numplayers;
509 *maxplayerspointer = maxplayers;
513 static void _ServerList_Test(void)
516 for( i = 0 ; i < 1024 ; i++ ) {
517 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
518 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
519 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
520 serverlist_cache[serverlist_cachecount].finished = true;
521 dpsnprintf( serverlist_cache[serverlist_cachecount].line1, sizeof(serverlist_cache[serverlist_cachecount].info.line1), "%i %s", serverlist_cache[serverlist_cachecount].info.ping, serverlist_cache[serverlist_cachecount].info.name );
522 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
523 serverlist_cachecount++;
528 void ServerList_QueryList(qboolean resetcache, qboolean querydp, qboolean queryqw, qboolean consoleoutput)
530 masterquerytime = realtime;
531 masterquerycount = 0;
532 masterreplycount = 0;
534 serverquerycount = 0;
535 serverreplycount = 0;
536 serverlist_cachecount = 0;
537 serverlist_viewcount = 0;
539 // refresh all entries
541 for( n = 0 ; n < serverlist_cachecount ; n++ ) {
542 serverlist_entry_t *entry = &serverlist_cache[ n ];
543 entry->query = SQS_REFRESHING;
544 entry->querycounter = 0;
547 serverlist_consoleoutput = consoleoutput;
549 //_ServerList_Test();
551 NetConn_QueryMasters(querydp, queryqw);
556 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
558 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
562 if (cl_netpacketloss_receive.integer)
563 for (i = 0;i < cl_numsockets;i++)
564 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer)
566 if (developer_networking.integer)
568 char addressstring[128], addressstring2[128];
569 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
572 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
573 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", (void *)mysocket, addressstring, (void *)data, maxlength, (void *)peeraddress, length, addressstring2);
574 Com_HexDumpToConsole((unsigned char *)data, length);
577 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", (void *)mysocket, addressstring, (void *)data, maxlength, (void *)peeraddress, length);
582 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
586 if (cl_netpacketloss_send.integer)
587 for (i = 0;i < cl_numsockets;i++)
588 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer)
590 ret = LHNET_Write(mysocket, data, length, peeraddress);
591 if (developer_networking.integer)
593 char addressstring[128], addressstring2[128];
594 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
595 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
596 Con_Printf("LHNET_Write(%p (%s), %p, %i, %p (%s)) = %i%s\n", (void *)mysocket, addressstring, (void *)data, length, (void *)peeraddress, addressstring2, length, ret == length ? "" : " (ERROR)");
597 Com_HexDumpToConsole((unsigned char *)data, length);
602 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
604 // note this does not include the trailing NULL because we add that in the parser
605 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
608 qboolean NetConn_CanSend(netconn_t *conn)
610 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
611 conn->outgoing_netgraph[conn->outgoing_packetcounter].time = realtime;
612 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_NOPACKET;
613 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
614 conn->outgoing_netgraph[conn->outgoing_packetcounter].ackbytes = NETGRAPH_NOPACKET;
615 if (realtime > conn->cleartime)
619 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_CHOKEDPACKET;
624 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate, qboolean quakesignon_suppressreliables)
628 // if this packet was supposedly choked, but we find ourselves sending one
629 // anyway, make sure the size counting starts at zero
630 // (this mostly happens on level changes and disconnects and such)
631 if (conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes == NETGRAPH_CHOKEDPACKET)
632 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_NOPACKET;
634 if (protocol == PROTOCOL_QUAKEWORLD)
637 qboolean sendreliable;
639 // note that it is ok to send empty messages to the qw server,
640 // otherwise it won't respond to us at all
642 sendreliable = false;
643 // if the remote side dropped the last reliable message, resend it
644 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
646 // if the reliable transmit buffer is empty, copy the current message out
647 if (!conn->sendMessageLength && conn->message.cursize)
649 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
650 conn->sendMessageLength = conn->message.cursize;
651 SZ_Clear(&conn->message); // clear the message buffer
652 conn->qw.reliable_sequence ^= 1;
655 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
656 StoreLittleLong(sendbuffer, (unsigned int)conn->outgoing_unreliable_sequence | ((unsigned int)sendreliable<<31));
657 // last received unreliable packet number, and last received reliable packet number (0 or 1)
658 StoreLittleLong(sendbuffer + 4, (unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
660 conn->outgoing_unreliable_sequence++;
661 // client sends qport in every packet
662 if (conn == cls.netcon)
664 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
666 // also update cls.qw_outgoing_sequence
667 cls.qw_outgoing_sequence = conn->outgoing_unreliable_sequence;
669 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
671 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
675 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes += packetLen + 28;
677 // add the reliable message if there is one
680 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += conn->sendMessageLength + 28;
681 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
682 packetLen += conn->sendMessageLength;
683 conn->qw.last_reliable_sequence = conn->outgoing_unreliable_sequence;
686 // add the unreliable message if possible
687 if (packetLen + data->cursize <= 1400)
689 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes += data->cursize + 28;
690 memcpy(sendbuffer + packetLen, data->data, data->cursize);
691 packetLen += data->cursize;
694 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
697 unreliableMessagesSent++;
699 totallen += packetLen + 28;
703 unsigned int packetLen;
704 unsigned int dataLen;
707 // if a reliable message fragment has been lost, send it again
708 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
710 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
712 dataLen = conn->sendMessageLength;
717 dataLen = MAX_PACKETFRAGMENT;
721 packetLen = NET_HEADERSIZE + dataLen;
723 StoreBigLong(sendbuffer, packetLen | (NETFLAG_DATA | eom));
724 StoreBigLong(sendbuffer + 4, conn->nq.sendSequence - 1);
725 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
727 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += packetLen + 28;
729 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
731 conn->lastSendTime = realtime;
735 totallen += packetLen + 28;
738 // if we have a new reliable message to send, do so
739 if (!conn->sendMessageLength && conn->message.cursize && !quakesignon_suppressreliables)
741 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
743 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
744 conn->message.overflowed = true;
748 if (developer_networking.integer && conn == cls.netcon)
750 Con_Print("client sending reliable message to server:\n");
751 SZ_HexDumpToConsole(&conn->message);
754 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
755 conn->sendMessageLength = conn->message.cursize;
756 SZ_Clear(&conn->message);
758 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
760 dataLen = conn->sendMessageLength;
765 dataLen = MAX_PACKETFRAGMENT;
769 packetLen = NET_HEADERSIZE + dataLen;
771 StoreBigLong(sendbuffer, packetLen | (NETFLAG_DATA | eom));
772 StoreBigLong(sendbuffer + 4, conn->nq.sendSequence);
773 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
775 conn->nq.sendSequence++;
777 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += packetLen + 28;
779 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
781 conn->lastSendTime = realtime;
783 reliableMessagesSent++;
785 totallen += packetLen + 28;
788 // if we have an unreliable message to send, do so
791 packetLen = NET_HEADERSIZE + data->cursize;
793 if (packetLen > (int)sizeof(sendbuffer))
795 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
799 StoreBigLong(sendbuffer, packetLen | NETFLAG_UNRELIABLE);
800 StoreBigLong(sendbuffer + 4, conn->outgoing_unreliable_sequence);
801 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
803 conn->outgoing_unreliable_sequence++;
805 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes += packetLen + 28;
807 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
810 unreliableMessagesSent++;
812 totallen += packetLen + 28;
816 // delay later packets to obey rate limit
817 if (conn->cleartime < realtime - 0.1)
818 conn->cleartime = realtime - 0.1;
819 conn->cleartime = conn->cleartime + (double)totallen / (double)rate;
820 if (conn->cleartime < realtime)
821 conn->cleartime = realtime;
826 qboolean NetConn_HaveClientPorts(void)
828 return !!cl_numsockets;
831 qboolean NetConn_HaveServerPorts(void)
833 return !!sv_numsockets;
836 void NetConn_CloseClientPorts(void)
838 for (;cl_numsockets > 0;cl_numsockets--)
839 if (cl_sockets[cl_numsockets - 1])
840 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
843 void NetConn_OpenClientPort(const char *addressstring, lhnetaddresstype_t addresstype, int defaultport)
845 lhnetaddress_t address;
848 char addressstring2[1024];
849 if (addressstring && addressstring[0])
850 success = LHNETADDRESS_FromString(&address, addressstring, defaultport);
852 success = LHNETADDRESS_FromPort(&address, addresstype, defaultport);
855 if ((s = LHNET_OpenSocket_Connectionless(&address)))
857 cl_sockets[cl_numsockets++] = s;
858 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
859 if (addresstype != LHNETADDRESSTYPE_LOOP)
860 Con_Printf("Client opened a socket on address %s\n", addressstring2);
864 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
865 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
869 Con_Printf("Client unable to parse address %s\n", addressstring);
872 void NetConn_OpenClientPorts(void)
875 NetConn_CloseClientPorts();
876 port = bound(0, cl_netport.integer, 65535);
877 if (cl_netport.integer != port)
878 Cvar_SetValueQuick(&cl_netport, port);
880 Con_Printf("Client using an automatically assigned port\n");
882 Con_Printf("Client using port %i\n", port);
883 NetConn_OpenClientPort(NULL, LHNETADDRESSTYPE_LOOP, 2);
884 NetConn_OpenClientPort(net_address.string, LHNETADDRESSTYPE_INET4, port);
886 NetConn_OpenClientPort(net_address_ipv6.string, LHNETADDRESSTYPE_INET6, port);
890 void NetConn_CloseServerPorts(void)
892 for (;sv_numsockets > 0;sv_numsockets--)
893 if (sv_sockets[sv_numsockets - 1])
894 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
897 qboolean NetConn_OpenServerPort(const char *addressstring, lhnetaddresstype_t addresstype, int defaultport, int range)
899 lhnetaddress_t address;
902 char addressstring2[1024];
905 for (port = defaultport; port <= defaultport + range; port++)
907 if (addressstring && addressstring[0])
908 success = LHNETADDRESS_FromString(&address, addressstring, port);
910 success = LHNETADDRESS_FromPort(&address, addresstype, port);
913 if ((s = LHNET_OpenSocket_Connectionless(&address)))
915 sv_sockets[sv_numsockets++] = s;
916 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
917 if (addresstype != LHNETADDRESSTYPE_LOOP)
918 Con_Printf("Server listening on address %s\n", addressstring2);
923 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
924 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
929 Con_Printf("Server unable to parse address %s\n", addressstring);
930 // if it cant parse one address, it wont be able to parse another for sure
937 void NetConn_OpenServerPorts(int opennetports)
940 NetConn_CloseServerPorts();
941 NetConn_UpdateSockets();
942 port = bound(0, sv_netport.integer, 65535);
945 Con_Printf("Server using port %i\n", port);
946 if (sv_netport.integer != port)
947 Cvar_SetValueQuick(&sv_netport, port);
948 if (cls.state != ca_dedicated)
949 NetConn_OpenServerPort(NULL, LHNETADDRESSTYPE_LOOP, 1, 1);
953 qboolean ip4success = NetConn_OpenServerPort(net_address.string, LHNETADDRESSTYPE_INET4, port, 100);
954 NetConn_OpenServerPort(net_address_ipv6.string, LHNETADDRESSTYPE_INET6, port, ip4success ? 1 : 100);
956 NetConn_OpenServerPort(net_address.string, LHNETADDRESSTYPE_INET4, port, 100);
959 if (sv_numsockets == 0)
960 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
963 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
965 int i, a = LHNETADDRESS_GetAddressType(address);
966 for (i = 0;i < cl_numsockets;i++)
967 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
968 return cl_sockets[i];
972 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
974 int i, a = LHNETADDRESS_GetAddressType(address);
975 for (i = 0;i < sv_numsockets;i++)
976 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
977 return sv_sockets[i];
981 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
984 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
985 conn->mysocket = mysocket;
986 conn->peeraddress = *peeraddress;
987 conn->lastMessageTime = realtime;
988 conn->message.data = conn->messagedata;
989 conn->message.maxsize = sizeof(conn->messagedata);
990 conn->message.cursize = 0;
991 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
992 // reduce effectiveness of connection request floods
993 conn->timeout = realtime + net_connecttimeout.value;
994 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
995 conn->next = netconn_list;
1000 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress);
1001 void NetConn_Close(netconn_t *conn)
1004 // remove connection from list
1006 // allow the client to reconnect immediately
1007 NetConn_ClearConnectFlood(&(conn->peeraddress));
1009 if (conn == netconn_list)
1010 netconn_list = conn->next;
1013 for (c = netconn_list;c;c = c->next)
1015 if (c->next == conn)
1017 c->next = conn->next;
1021 // not found in list, we'll avoid crashing here...
1029 static int clientport = -1;
1030 static int clientport2 = -1;
1031 static int hostport = -1;
1032 void NetConn_UpdateSockets(void)
1036 if (cls.state != ca_dedicated)
1038 if (clientport2 != cl_netport.integer)
1040 clientport2 = cl_netport.integer;
1041 if (cls.state == ca_connected)
1042 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
1044 if (cls.state == ca_disconnected && clientport != clientport2)
1046 clientport = clientport2;
1047 NetConn_CloseClientPorts();
1049 if (cl_numsockets == 0)
1050 NetConn_OpenClientPorts();
1053 if (hostport != sv_netport.integer)
1055 hostport = sv_netport.integer;
1057 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
1060 for (j = 0;j < MAX_RCONS;j++)
1062 i = (cls.rcon_ringpos + j + 1) % MAX_RCONS;
1063 if(cls.rcon_commands[i][0])
1065 if(realtime > cls.rcon_timeout[i])
1068 LHNETADDRESS_ToString(&cls.rcon_addresses[i], s, sizeof(s), true);
1069 Con_Printf("rcon to %s (for command %s) failed: challenge request timed out\n", s, cls.rcon_commands[i]);
1070 cls.rcon_commands[i][0] = 0;
1078 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout)
1080 int originallength = length;
1084 if (protocol == PROTOCOL_QUAKEWORLD)
1086 int sequence, sequence_ack;
1087 int reliable_ack, reliable_message;
1091 sequence = LittleLong(*((int *)(data + 0)));
1092 sequence_ack = LittleLong(*((int *)(data + 4)));
1096 if (conn != cls.netcon)
1101 // 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?)
1102 qport = LittleShort(*((int *)(data + 8)));
1108 reliable_message = (sequence >> 31) & 1;
1109 reliable_ack = (sequence_ack >> 31) & 1;
1110 sequence &= ~(1<<31);
1111 sequence_ack &= ~(1<<31);
1112 if (sequence <= conn->qw.incoming_sequence)
1114 //Con_DPrint("Got a stale datagram\n");
1117 count = sequence - (conn->qw.incoming_sequence + 1);
1120 droppedDatagrams += count;
1121 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1124 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1125 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1126 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = NETGRAPH_LOSTPACKET;
1127 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1128 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1131 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1132 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1133 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = originallength + 28;
1134 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1135 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1136 if (reliable_ack == conn->qw.reliable_sequence)
1138 // received, now we will be able to send another reliable message
1139 conn->sendMessageLength = 0;
1140 reliableMessagesReceived++;
1142 conn->qw.incoming_sequence = sequence;
1143 if (conn == cls.netcon)
1144 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
1145 conn->qw.incoming_acknowledged = sequence_ack;
1146 conn->qw.incoming_reliable_acknowledged = reliable_ack;
1147 if (reliable_message)
1148 conn->qw.incoming_reliable_sequence ^= 1;
1149 conn->lastMessageTime = realtime;
1150 conn->timeout = realtime + newtimeout;
1151 unreliableMessagesReceived++;
1152 SZ_Clear(&net_message);
1153 SZ_Write(&net_message, data, length);
1161 unsigned int sequence;
1164 qlength = (unsigned int)BuffBigLong(data);
1165 flags = qlength & ~NETFLAG_LENGTH_MASK;
1166 qlength &= NETFLAG_LENGTH_MASK;
1167 // control packets were already handled
1168 if (!(flags & NETFLAG_CTL) && qlength == length)
1170 sequence = BuffBigLong(data + 4);
1174 if (flags & NETFLAG_UNRELIABLE)
1176 if (sequence >= conn->nq.unreliableReceiveSequence)
1178 if (sequence > conn->nq.unreliableReceiveSequence)
1180 count = sequence - conn->nq.unreliableReceiveSequence;
1181 droppedDatagrams += count;
1182 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1185 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1186 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1187 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = NETGRAPH_LOSTPACKET;
1188 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1189 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1192 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1193 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1194 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = originallength + 28;
1195 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1196 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1197 conn->nq.unreliableReceiveSequence = sequence + 1;
1198 conn->lastMessageTime = realtime;
1199 conn->timeout = realtime + newtimeout;
1200 unreliableMessagesReceived++;
1203 SZ_Clear(&net_message);
1204 SZ_Write(&net_message, data, length);
1210 // Con_DPrint("Got a stale datagram\n");
1213 else if (flags & NETFLAG_ACK)
1215 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes += originallength + 28;
1216 if (sequence == (conn->nq.sendSequence - 1))
1218 if (sequence == conn->nq.ackSequence)
1220 conn->nq.ackSequence++;
1221 if (conn->nq.ackSequence != conn->nq.sendSequence)
1222 Con_DPrint("ack sequencing error\n");
1223 conn->lastMessageTime = realtime;
1224 conn->timeout = realtime + newtimeout;
1225 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1227 unsigned int packetLen;
1228 unsigned int dataLen;
1231 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1232 memmove(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1234 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1236 dataLen = conn->sendMessageLength;
1241 dataLen = MAX_PACKETFRAGMENT;
1245 packetLen = NET_HEADERSIZE + dataLen;
1247 StoreBigLong(sendbuffer, packetLen | (NETFLAG_DATA | eom));
1248 StoreBigLong(sendbuffer + 4, conn->nq.sendSequence);
1249 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1251 conn->nq.sendSequence++;
1253 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1255 conn->lastSendTime = realtime;
1260 conn->sendMessageLength = 0;
1263 // Con_DPrint("Duplicate ACK received\n");
1266 // Con_DPrint("Stale ACK received\n");
1269 else if (flags & NETFLAG_DATA)
1271 unsigned char temppacket[8];
1272 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes += originallength + 28;
1273 conn->outgoing_netgraph[conn->outgoing_packetcounter].ackbytes += 8 + 28;
1274 StoreBigLong(temppacket, 8 | NETFLAG_ACK);
1275 StoreBigLong(temppacket + 4, sequence);
1276 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1277 if (sequence == conn->nq.receiveSequence)
1279 conn->lastMessageTime = realtime;
1280 conn->timeout = realtime + newtimeout;
1281 conn->nq.receiveSequence++;
1282 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1283 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1284 conn->receiveMessageLength += length;
1286 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1287 "Dropping the message!\n", sequence );
1288 conn->receiveMessageLength = 0;
1291 if (flags & NETFLAG_EOM)
1293 reliableMessagesReceived++;
1294 length = conn->receiveMessageLength;
1295 conn->receiveMessageLength = 0;
1298 SZ_Clear(&net_message);
1299 SZ_Write(&net_message, conn->receiveMessage, length);
1306 receivedDuplicateCount++;
1314 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1316 cls.connect_trying = false;
1317 M_Update_Return_Reason("");
1318 // the connection request succeeded, stop current connection and set up a new connection
1320 // if we're connecting to a remote server, shut down any local server
1321 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1322 Host_ShutdownServer ();
1323 // allocate a net connection to keep track of things
1324 cls.netcon = NetConn_Open(mysocket, peeraddress);
1325 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1326 key_dest = key_game;
1328 cls.demonum = -1; // not in the demo loop now
1329 cls.state = ca_connected;
1330 cls.signon = 0; // need all the signon messages before playing
1331 cls.protocol = initialprotocol;
1332 // reset move sequence numbering on this new connection
1333 cls.servermovesequence = 0;
1334 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1335 Cmd_ForwardStringToServer("new");
1336 if (cls.protocol == PROTOCOL_QUAKE)
1338 // write a keepalive (clc_nop) as it seems to greatly improve the
1339 // chances of connecting to a netquake server
1341 unsigned char buf[4];
1342 memset(&msg, 0, sizeof(msg));
1344 msg.maxsize = sizeof(buf);
1345 MSG_WriteChar(&msg, clc_nop);
1346 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000, false);
1350 int NetConn_IsLocalGame(void)
1352 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1357 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1361 serverlist_entry_t *entry = NULL;
1363 // search the cache for this server and update it
1364 for (n = 0;n < serverlist_cachecount;n++) {
1365 entry = &serverlist_cache[ n ];
1366 if (!strcmp(addressstring, entry->info.cname))
1370 if (n == serverlist_cachecount)
1372 // LAN search doesnt require an answer from the master server so we wont
1373 // know the ping nor will it be initialized already...
1376 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1379 entry = &serverlist_cache[n];
1381 memset(entry, 0, sizeof(*entry));
1382 // store the data the engine cares about (address and ping)
1383 strlcpy(entry->info.cname, addressstring, sizeof(entry->info.cname));
1384 entry->info.ping = 100000;
1385 entry->querytime = realtime;
1386 // if not in the slist menu we should print the server to console
1387 if (serverlist_consoleoutput)
1388 Con_Printf("querying %s\n", addressstring);
1389 ++serverlist_cachecount;
1391 // if this is the first reply from this server, count it as having replied
1392 pingtime = (int)((realtime - entry->querytime) * 1000.0 + 0.5);
1393 pingtime = bound(0, pingtime, 9999);
1394 if (entry->query == SQS_REFRESHING) {
1395 entry->info.ping = pingtime;
1396 entry->query = SQS_QUERIED;
1398 // convert to unsigned to catch the -1
1399 // 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]
1400 entry->info.ping = min((unsigned) entry->info.ping, (unsigned) pingtime);
1404 // other server info is updated by the caller
1408 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1410 serverlist_entry_t *entry = &serverlist_cache[n];
1411 serverlist_info_t *info = &entry->info;
1412 // update description strings for engine menu and console output
1413 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);
1414 dpsnprintf(entry->line2, sizeof(serverlist_cache[n].line2), "^4%-21.21s %-19.19s ^%c%-17.17s^4 %-20.20s", info->cname, info->game,
1416 info->gameversion != gameversion.integer
1419 gameversion_min.integer >= 0 // min/max range set by user/mod?
1420 && gameversion_max.integer >= 0
1421 && gameversion_min.integer >= info->gameversion // version of server in min/max range?
1422 && gameversion_max.integer <= info->gameversion
1425 info->mod, info->map);
1426 if (entry->query == SQS_QUERIED)
1428 if(!serverlist_paused)
1429 ServerList_ViewList_Remove(entry);
1431 // if not in the slist menu we should print the server to console (if wanted)
1432 else if( serverlist_consoleoutput )
1433 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1434 // and finally, update the view set
1435 if(!serverlist_paused)
1436 ServerList_ViewList_Insert( entry );
1437 // update the entry's state
1438 serverlist_cache[n].query = SQS_QUERIED;
1441 // returns true, if it's sensible to continue the processing
1442 static qboolean NetConn_ClientParsePacket_ServerList_PrepareQuery( int protocol, const char *ipstring, qboolean isfavorite ) {
1444 serverlist_entry_t *entry;
1446 // ignore the rest of the message if the serverlist is full
1447 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1449 // also ignore it if we have already queried it (other master server response)
1450 for( n = 0 ; n < serverlist_cachecount ; n++ )
1451 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1454 entry = &serverlist_cache[n];
1456 if( n < serverlist_cachecount ) {
1457 // the entry has already been queried once or
1461 memset(entry, 0, sizeof(entry));
1462 entry->protocol = protocol;
1463 // store the data the engine cares about (address and ping)
1464 strlcpy (entry->info.cname, ipstring, sizeof(entry->info.cname));
1466 entry->info.isfavorite = isfavorite;
1468 // no, then reset the ping right away
1469 entry->info.ping = -1;
1470 // we also want to increase the serverlist_cachecount then
1471 serverlist_cachecount++;
1474 entry->query = SQS_QUERYING;
1479 static void NetConn_ClientParsePacket_ServerList_ParseDPList(lhnetaddress_t *senderaddress, const unsigned char *data, int length, qboolean isextended)
1482 if (serverlist_consoleoutput)
1483 Con_Printf("received DarkPlaces %sserver list...\n", isextended ? "extended " : "");
1486 char ipstring [128];
1489 if (data[0] == '\\')
1491 unsigned short port = data[5] * 256 + data[6];
1493 if (port != 0 && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF))
1494 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%hu", data[1], data[2], data[3], data[4], port);
1496 // move on to next address in packet
1501 else if (data[0] == '/' && isextended && length >= 19)
1503 unsigned short port = data[17] * 256 + data[18];
1509 /// \TODO: make some basic checks of the IP address (broadcast, ...)
1511 ifname = LHNETADDRESS_GetInterfaceName(senderaddress);
1514 dpsnprintf (ipstring, sizeof (ipstring), "[%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x%%%s]:%hu",
1515 data[1], data[2], data[3], data[4], data[5], data[6], data[7], data[8],
1516 data[9], data[10], data[11], data[12], data[13], data[14], data[15], data[16],
1521 dpsnprintf (ipstring, sizeof (ipstring), "[%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x]:%hu",
1522 data[1], data[2], data[3], data[4], data[5], data[6], data[7], data[8],
1523 data[9], data[10], data[11], data[12], data[13], data[14], data[15], data[16],
1528 // move on to next address in packet
1534 Con_Print("Error while parsing the server list\n");
1538 if (serverlist_consoleoutput && developer_networking.integer)
1539 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1541 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, ipstring, false ) ) {
1547 // begin or resume serverlist queries
1548 serverlist_querysleep = false;
1549 serverlist_querywaittime = realtime + 3;
1552 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1554 qboolean fromserver;
1555 int ret, c, control;
1557 char *string, addressstring2[128], ipstring[32];
1558 char stringbuf[16384];
1560 // quakeworld ingame packet
1561 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1563 // convert the address to a string incase we need it
1564 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1566 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1568 // received a command string - strip off the packaging and put it
1569 // into our string buffer with NULL termination
1572 length = min(length, (int)sizeof(stringbuf) - 1);
1573 memcpy(stringbuf, data, length);
1574 stringbuf[length] = 0;
1577 if (developer_networking.integer)
1579 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1580 Com_HexDumpToConsole(data, length);
1583 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.rcon_trying)
1586 for (j = 0;j < MAX_RCONS;j++)
1588 i = (cls.rcon_ringpos + j) % MAX_RCONS;
1589 if(cls.rcon_commands[i][0])
1590 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[i]))
1599 dpsnprintf(argbuf, sizeof(argbuf), "%s %s", string + 10, cls.rcon_commands[i]);
1600 memcpy(buf, "\377\377\377\377srcon HMAC-MD4 CHALLENGE ", 29);
1602 e = strchr(rcon_password.string, ' ');
1603 n = e ? e-rcon_password.string : (int)strlen(rcon_password.string);
1605 if(HMAC_MDFOUR_16BYTES((unsigned char *) (buf + 29), (unsigned char *) argbuf, strlen(argbuf), (unsigned char *) rcon_password.string, n))
1608 strlcpy(buf + 46, argbuf, sizeof(buf) - 46);
1609 NetConn_Write(mysocket, buf, 46 + strlen(buf + 46), peeraddress);
1610 cls.rcon_commands[i][0] = 0;
1613 for (i = 0;i < MAX_RCONS;i++)
1614 if(cls.rcon_commands[i][0])
1615 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[i]))
1619 NetConn_WriteString(mysocket, "\377\377\377\377getchallenge", peeraddress);
1620 // extend the timeout on other requests as we asked for a challenge
1621 for (i = 0;i < MAX_RCONS;i++)
1622 if(cls.rcon_commands[i][0])
1623 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[i]))
1624 cls.rcon_timeout[i] = realtime + rcon_secure_challengetimeout.value;
1627 return true; // we used up the challenge, so we can't use this oen for connecting now anyway
1631 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1633 // darkplaces or quake3
1634 char protocolnames[1400];
1635 Protocol_Names(protocolnames, sizeof(protocolnames));
1636 Con_DPrintf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1637 M_Update_Return_Reason("Got challenge response");
1638 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1639 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1640 // TODO: add userinfo stuff here instead of using NQ commands?
1641 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1644 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1646 // darkplaces or quake3
1647 M_Update_Return_Reason("Accepted");
1648 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1651 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1653 char rejectreason[32];
1654 cls.connect_trying = false;
1656 length = min(length - 7, (int)sizeof(rejectreason) - 1);
1657 memcpy(rejectreason, string, length);
1658 rejectreason[length] = 0;
1659 M_Update_Return_Reason(rejectreason);
1662 if (length >= 15 && !memcmp(string, "statusResponse\x0A", 15))
1664 serverlist_info_t *info;
1669 // search the cache for this server and update it
1670 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1674 info = &serverlist_cache[n].info;
1679 info->qcstatus[0] = 0;
1680 info->players[0] = 0;
1681 info->protocol = -1;
1682 info->numplayers = 0;
1684 info->maxplayers = 0;
1685 info->gameversion = 0;
1687 p = strchr(string, '\n');
1690 *p = 0; // cut off the string there
1694 Con_Printf("statusResponse without players block?\n");
1696 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1697 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1698 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1699 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1700 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1701 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1702 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1703 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1704 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1705 if ((s = SearchInfostring(string, "qcstatus" )) != NULL) strlcpy(info->qcstatus, s, sizeof(info->qcstatus));
1706 if (p != NULL) strlcpy(info->players, p, sizeof(info->players));
1707 info->numhumans = info->numplayers - max(0, info->numbots);
1708 info->freeslots = info->maxplayers - info->numplayers;
1710 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1714 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1716 serverlist_info_t *info;
1720 // search the cache for this server and update it
1721 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1725 info = &serverlist_cache[n].info;
1730 info->qcstatus[0] = 0;
1731 info->players[0] = 0;
1732 info->protocol = -1;
1733 info->numplayers = 0;
1735 info->maxplayers = 0;
1736 info->gameversion = 0;
1738 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1739 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1740 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1741 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1742 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1743 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1744 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1745 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1746 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1747 if ((s = SearchInfostring(string, "qcstatus" )) != NULL) strlcpy(info->qcstatus, s, sizeof(info->qcstatus));
1748 info->numhumans = info->numplayers - max(0, info->numbots);
1749 info->freeslots = info->maxplayers - info->numplayers;
1751 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1755 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1757 // Extract the IP addresses
1760 NetConn_ClientParsePacket_ServerList_ParseDPList(peeraddress, data, length, false);
1763 if (!strncmp(string, "getserversExtResponse", 21) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1765 // Extract the IP addresses
1768 NetConn_ClientParsePacket_ServerList_ParseDPList(peeraddress, data, length, true);
1771 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1773 // Extract the IP addresses
1777 if (serverlist_consoleoutput)
1778 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1779 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1781 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1782 if (serverlist_consoleoutput && developer_networking.integer)
1783 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1785 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, ipstring, false ) ) {
1789 // move on to next address in packet
1793 // begin or resume serverlist queries
1794 serverlist_querysleep = false;
1795 serverlist_querywaittime = realtime + 3;
1798 if (!strncmp(string, "extResponse ", 12))
1800 ++cl_net_extresponse_count;
1801 if(cl_net_extresponse_count > NET_EXTRESPONSE_MAX)
1802 cl_net_extresponse_count = NET_EXTRESPONSE_MAX;
1803 cl_net_extresponse_last = (cl_net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1804 dpsnprintf(cl_net_extresponse[cl_net_extresponse_last], sizeof(cl_net_extresponse[cl_net_extresponse_last]), "\"%s\" %s", addressstring2, string + 12);
1807 if (!strncmp(string, "ping", 4))
1809 if (developer_extra.integer)
1810 Con_DPrintf("Received ping from %s, sending ack\n", addressstring2);
1811 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1814 if (!strncmp(string, "ack", 3))
1816 // QuakeWorld compatibility
1817 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1819 // challenge message
1820 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1821 M_Update_Return_Reason("Got QuakeWorld challenge response");
1822 cls.qw_qport = qport.integer;
1823 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1824 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1825 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1828 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1831 M_Update_Return_Reason("QuakeWorld Accepted");
1832 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1835 if (length > 2 && !memcmp(string, "n\\", 2))
1837 serverlist_info_t *info;
1841 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1842 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1845 // search the cache for this server and update it
1846 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1850 info = &serverlist_cache[n].info;
1851 strlcpy(info->game, "QuakeWorld", sizeof(info->game));
1852 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1853 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1854 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1856 info->numplayers = 0; // updated below
1857 info->numhumans = 0; // updated below
1858 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1859 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1861 // count active players on server
1862 // (we could gather more info, but we're just after the number)
1863 s = strchr(string, '\n');
1867 while (s < string + length)
1869 for (;s < string + length && *s != '\n';s++)
1871 if (s >= string + length)
1879 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1883 if (string[0] == 'n')
1886 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1888 // we may not have liked the packet, but it was a command packet, so
1889 // we're done processing this packet now
1892 // quakeworld ingame packet
1893 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1896 CL_ParseServerMessage();
1899 // netquake control packets, supported for compatibility only
1900 if (length >= 5 && (control = BuffBigLong(data)) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1903 serverlist_info_t *info;
1907 SZ_Clear(&net_message);
1908 SZ_Write(&net_message, data, length);
1914 if (developer_extra.integer)
1915 Con_DPrintf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1916 if (cls.connect_trying)
1918 lhnetaddress_t clientportaddress;
1919 clientportaddress = *peeraddress;
1920 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1921 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1922 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1923 M_Update_Return_Reason("Accepted");
1924 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1928 if (developer_extra.integer)
1929 Con_DPrintf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1930 cls.connect_trying = false;
1931 M_Update_Return_Reason((char *)MSG_ReadString());
1933 case CCREP_SERVER_INFO:
1934 if (developer_extra.integer)
1935 Con_DPrintf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1936 // LordHavoc: because the quake server may report weird addresses
1937 // we just ignore it and keep the real address
1939 // search the cache for this server and update it
1940 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1944 info = &serverlist_cache[n].info;
1945 strlcpy(info->game, "Quake", sizeof(info->game));
1946 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1947 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1948 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1949 info->numplayers = MSG_ReadByte();
1950 info->maxplayers = MSG_ReadByte();
1951 info->protocol = MSG_ReadByte();
1953 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1956 case CCREP_RCON: // RocketGuy: ProQuake rcon support
1957 if (developer_extra.integer)
1958 Con_DPrintf("Datagram_ParseConnectionless: received CCREP_RCON from %s.\n", addressstring2);
1960 Con_Printf("%s\n", MSG_ReadString());
1962 case CCREP_PLAYER_INFO:
1963 // we got a CCREP_PLAYER_INFO??
1964 //if (developer_extra.integer)
1965 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1967 case CCREP_RULE_INFO:
1968 // we got a CCREP_RULE_INFO??
1969 //if (developer_extra.integer)
1970 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1975 SZ_Clear(&net_message);
1976 // we may not have liked the packet, but it was a valid control
1977 // packet, so we're done processing this packet now
1981 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1982 CL_ParseServerMessage();
1986 void NetConn_QueryQueueFrame(void)
1992 static double querycounter = 0;
1994 if(!net_slist_pause.integer && serverlist_paused)
1995 ServerList_RebuildViewList();
1996 serverlist_paused = net_slist_pause.integer != 0;
1998 if (serverlist_querysleep)
2001 // apply a cool down time after master server replies,
2002 // to avoid messing up the ping times on the servers
2003 if (serverlist_querywaittime > realtime)
2006 // each time querycounter reaches 1.0 issue a query
2007 querycounter += cl.realframetime * net_slist_queriespersecond.value;
2008 maxqueries = (int)querycounter;
2009 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
2010 querycounter -= maxqueries;
2012 if( maxqueries == 0 ) {
2016 // scan serverlist and issue queries as needed
2017 serverlist_querysleep = true;
2019 timeouttime = realtime - net_slist_timeout.value;
2020 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
2022 serverlist_entry_t *entry = &serverlist_cache[ index ];
2023 if( entry->query != SQS_QUERYING && entry->query != SQS_REFRESHING )
2028 serverlist_querysleep = false;
2029 if( entry->querycounter != 0 && entry->querytime > timeouttime )
2034 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
2036 lhnetaddress_t address;
2039 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
2040 if (entry->protocol == PROTOCOL_QUAKEWORLD)
2042 for (socket = 0; socket < cl_numsockets ; socket++)
2043 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
2047 for (socket = 0; socket < cl_numsockets ; socket++)
2048 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getstatus", &address);
2051 // update the entry fields
2052 entry->querytime = realtime;
2053 entry->querycounter++;
2055 // if not in the slist menu we should print the server to console
2056 if (serverlist_consoleoutput)
2057 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
2063 // have we tried to refresh this server?
2064 if( entry->query == SQS_REFRESHING ) {
2065 // yes, so update the reply count (since its not responding anymore)
2067 if(!serverlist_paused)
2068 ServerList_ViewList_Remove(entry);
2070 entry->query = SQS_TIMEDOUT;
2075 void NetConn_ClientFrame(void)
2078 lhnetaddress_t peeraddress;
2079 NetConn_UpdateSockets();
2080 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
2082 if (cls.connect_remainingtries == 0)
2083 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
2084 cls.connect_nextsendtime = realtime + 1;
2085 cls.connect_remainingtries--;
2086 if (cls.connect_remainingtries <= -10)
2088 cls.connect_trying = false;
2089 M_Update_Return_Reason("Connect: Failed");
2092 // try challenge first (newer DP server or QW)
2093 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
2094 // then try netquake as a fallback (old server, or netquake)
2095 SZ_Clear(&net_message);
2096 // save space for the header, filled in later
2097 MSG_WriteLong(&net_message, 0);
2098 MSG_WriteByte(&net_message, CCREQ_CONNECT);
2099 MSG_WriteString(&net_message, "QUAKE");
2100 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2101 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2102 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
2103 SZ_Clear(&net_message);
2105 for (i = 0;i < cl_numsockets;i++)
2106 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2107 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
2108 NetConn_QueryQueueFrame();
2109 if (cls.netcon && realtime > cls.netcon->timeout && !sv.active)
2111 Con_Print("Connection timed out\n");
2113 Host_ShutdownServer ();
2117 #define MAX_CHALLENGES 128
2120 lhnetaddress_t address;
2124 challenge[MAX_CHALLENGES];
2126 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
2130 for (i = 0;i < bufferlength - 1;i++)
2134 c = rand () % (127 - 33) + 33;
2135 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
2141 /// (div0) build the full response only if possible; better a getinfo response than no response at all if getstatus won't fit
2142 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
2145 unsigned int nb_clients = 0, nb_bots = 0, i;
2151 // How many clients are there?
2152 for (i = 0;i < (unsigned int)svs.maxclients;i++)
2154 if (svs.clients[i].active)
2157 if (!svs.clients[i].netconnection)
2163 if(prog->globaloffsets.worldstatus >= 0)
2165 const char *str = PRVM_G_STRING(prog->globaloffsets.worldstatus);
2171 for(q = str; *q; ++q)
2172 if(*q != '\\' && *q != '\n')
2178 /// \TODO: we should add more information for the full status string
2179 length = dpsnprintf(out_msg, out_size,
2180 "\377\377\377\377%s\x0A"
2181 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
2182 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
2186 fullstatus ? "statusResponse" : "infoResponse",
2187 gamename, com_modname, gameversion.integer, svs.maxclients,
2188 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
2189 *qcstatus ? "\\qcstatus\\" : "", qcstatus,
2190 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
2191 fullstatus ? "\n" : "");
2193 // Make sure it fits in the buffer
2203 savelength = length;
2205 ptr = out_msg + length;
2206 left = (int)out_size - length;
2208 for (i = 0;i < (unsigned int)svs.maxclients;i++)
2210 client_t *cl = &svs.clients[i];
2213 int nameind, cleanind, pingvalue;
2215 char cleanname [sizeof(cl->name)];
2217 // Remove all characters '"' and '\' in the player name
2222 curchar = cl->name[nameind++];
2223 if (curchar != '"' && curchar != '\\')
2225 cleanname[cleanind++] = curchar;
2226 if (cleanind == sizeof(cleanname) - 1)
2229 } while (curchar != '\0');
2230 cleanname[cleanind] = 0; // cleanind is always a valid index even at this point
2232 pingvalue = (int)(cl->ping * 1000.0f);
2233 if(cl->netconnection)
2234 pingvalue = bound(1, pingvalue, 9999);
2239 if(prog->fieldoffsets.clientstatus >= 0)
2241 const char *str = PRVM_E_STRING(PRVM_EDICT_NUM(i + 1), prog->fieldoffsets.clientstatus);
2247 for(q = str; *q && p != qcstatus + sizeof(qcstatus) - 1; ++q)
2248 if(*q != '\\' && *q != '"' && !ISWHITESPACE(*q))
2254 if ((gamemode == GAME_NEXUIZ) && (teamplay.integer > 0))
2256 if(cl->frags == -666) // spectator
2257 strlcpy(teambuf, " 0", sizeof(teambuf));
2258 else if(cl->colors == 0x44) // red team
2259 strlcpy(teambuf, " 1", sizeof(teambuf));
2260 else if(cl->colors == 0xDD) // blue team
2261 strlcpy(teambuf, " 2", sizeof(teambuf));
2262 else if(cl->colors == 0xCC) // yellow team
2263 strlcpy(teambuf, " 3", sizeof(teambuf));
2264 else if(cl->colors == 0x99) // pink team
2265 strlcpy(teambuf, " 4", sizeof(teambuf));
2267 strlcpy(teambuf, " 0", sizeof(teambuf));
2272 // note: team number is inserted according to SoF2 protocol
2274 length = dpsnprintf(ptr, left, "%s %d%s \"%s\"\n",
2280 length = dpsnprintf(ptr, left, "%d %d%s \"%s\"\n",
2289 // turn it into an infoResponse!
2290 out_msg[savelength] = 0;
2291 memcpy(out_msg + 4, "infoResponse\x0A", 13);
2292 memmove(out_msg + 17, out_msg + 19, savelength - 19);
2309 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
2311 int floodslotnum, bestfloodslotnum;
2312 double bestfloodtime;
2313 lhnetaddress_t noportpeeraddress;
2314 // see if this is a connect flood
2315 noportpeeraddress = *peeraddress;
2316 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
2317 bestfloodslotnum = 0;
2318 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
2319 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
2321 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
2323 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
2324 bestfloodslotnum = floodslotnum;
2326 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
2328 // this address matches an ongoing flood address
2329 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
2331 // renew the ban on this address so it does not expire
2332 // until the flood has subsided
2333 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
2334 //Con_Printf("Flood detected!\n");
2337 // the flood appears to have subsided, so allow this
2338 bestfloodslotnum = floodslotnum; // reuse the same slot
2342 // begin a new timeout on this address
2343 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
2344 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
2345 //Con_Printf("Flood detection initiated!\n");
2349 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
2352 lhnetaddress_t noportpeeraddress;
2353 // see if this is a connect flood
2354 noportpeeraddress = *peeraddress;
2355 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
2356 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
2358 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
2360 // this address matches an ongoing flood address
2362 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
2363 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
2364 //Con_Printf("Flood cleared!\n");
2369 typedef qboolean (*rcon_matchfunc_t) (lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen);
2371 qboolean hmac_mdfour_time_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2376 t1 = (long) time(NULL);
2377 t2 = strtol(s, NULL, 0);
2378 if(abs(t1 - t2) > rcon_secure_maxdiff.integer)
2381 if(!HMAC_MDFOUR_16BYTES((unsigned char *) mdfourbuf, (unsigned char *) s, slen, (unsigned char *) password, strlen(password)))
2384 return !memcmp(mdfourbuf, hash, 16);
2387 qboolean hmac_mdfour_challenge_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2392 if(slen < (int)(sizeof(challenge[0].string)) - 1)
2395 // validate the challenge
2396 for (i = 0;i < MAX_CHALLENGES;i++)
2397 if(challenge[i].time > 0)
2398 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strncmp(challenge[i].string, s, sizeof(challenge[0].string) - 1))
2400 // if the challenge is not recognized, drop the packet
2401 if (i == MAX_CHALLENGES)
2404 if(!HMAC_MDFOUR_16BYTES((unsigned char *) mdfourbuf, (unsigned char *) s, slen, (unsigned char *) password, strlen(password)))
2407 if(memcmp(mdfourbuf, hash, 16))
2410 // unmark challenge to prevent replay attacks
2411 challenge[i].time = 0;
2416 qboolean plaintext_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2418 return !strcmp(password, hash);
2421 /// returns a string describing the user level, or NULL for auth failure
2422 const char *RCon_Authenticate(lhnetaddress_t *peeraddress, const char *password, const char *s, const char *endpos, rcon_matchfunc_t comparator, const char *cs, int cslen)
2424 const char *text, *userpass_start, *userpass_end, *userpass_startpass;
2425 char buf[MAX_INPUTLINE];
2427 qboolean restricted = false;
2428 qboolean have_usernames = false;
2430 userpass_start = rcon_password.string;
2431 while((userpass_end = strchr(userpass_start, ' ')))
2433 have_usernames = true;
2434 strlcpy(buf, userpass_start, ((size_t)(userpass_end-userpass_start) >= sizeof(buf)) ? (int)(sizeof(buf)) : (int)(userpass_end-userpass_start+1));
2436 if(comparator(peeraddress, buf, password, cs, cslen))
2438 userpass_start = userpass_end + 1;
2440 if(userpass_start[0])
2442 userpass_end = userpass_start + strlen(userpass_start);
2443 if(comparator(peeraddress, userpass_start, password, cs, cslen))
2448 have_usernames = false;
2449 userpass_start = rcon_restricted_password.string;
2450 while((userpass_end = strchr(userpass_start, ' ')))
2452 have_usernames = true;
2453 strlcpy(buf, userpass_start, ((size_t)(userpass_end-userpass_start) >= sizeof(buf)) ? (int)(sizeof(buf)) : (int)(userpass_end-userpass_start+1));
2455 if(comparator(peeraddress, buf, password, cs, cslen))
2457 userpass_start = userpass_end + 1;
2459 if(userpass_start[0])
2461 userpass_end = userpass_start + strlen(userpass_start);
2462 if(comparator(peeraddress, userpass_start, password, cs, cslen))
2466 return NULL; // DENIED
2469 for(text = s; text != endpos; ++text)
2470 if((signed char) *text > 0 && ((signed char) *text < (signed char) ' ' || *text == ';'))
2471 return NULL; // block possible exploits against the parser/alias expansion
2475 size_t l = strlen(s);
2478 hasquotes = (strchr(s, '"') != NULL);
2479 // sorry, we can't allow these substrings in wildcard expressions,
2480 // as they can mess with the argument counts
2481 text = rcon_restricted_commands.string;
2482 while(COM_ParseToken_Console(&text))
2484 // com_token now contains a pattern to check for...
2485 if(strchr(com_token, '*') || strchr(com_token, '?')) // wildcard expression, * can only match a SINGLE argument
2488 if(matchpattern_with_separator(s, com_token, true, " ", true)) // note how we excluded tab, newline etc. above
2491 else if(strchr(com_token, ' ')) // multi-arg expression? must match in whole
2493 if(!strcmp(com_token, s))
2496 else // single-arg expression? must match the beginning of the command
2498 if(!strcmp(com_token, s))
2500 if(!memcmp(va("%s ", com_token), s, strlen(com_token) + 1))
2504 // if we got here, nothing matched!
2512 userpass_startpass = strchr(userpass_start, ':');
2513 if(have_usernames && userpass_startpass && userpass_startpass < userpass_end)
2514 return va("%srcon (username %.*s)", restricted ? "restricted " : "", (int)(userpass_startpass-userpass_start), userpass_start);
2516 return va("%srcon", restricted ? "restricted " : "");
2518 return "restricted rcon";
2521 void RCon_Execute(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, const char *addressstring2, const char *userlevel, const char *s, const char *endpos)
2525 // looks like a legitimate rcon command with the correct password
2526 const char *s_ptr = s;
2527 Con_Printf("server received %s command from %s: ", userlevel, host_client ? host_client->name : addressstring2);
2528 while(s_ptr != endpos)
2530 size_t l = strlen(s_ptr);
2532 Con_Printf(" %s;", s_ptr);
2537 if (!host_client || !host_client->netconnection || LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2538 Con_Rcon_Redirect_Init(mysocket, peeraddress);
2541 size_t l = strlen(s);
2544 client_t *host_client_save = host_client;
2545 Cmd_ExecuteString(s, src_command);
2546 host_client = host_client_save;
2547 // in case it is a command that changes host_client (like restart)
2551 Con_Rcon_Redirect_End();
2555 Con_Printf("server denied rcon access to %s\n", host_client ? host_client->name : addressstring2);
2559 extern void SV_SendServerinfo (client_t *client);
2560 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
2562 int i, ret, clientnum, best;
2565 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
2566 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
2571 // convert the address to a string incase we need it
2572 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
2574 // see if we can identify the sender as a local player
2575 // (this is necessary for rcon to send a reliable reply if the client is
2576 // actually on the server, not sending remotely)
2577 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2578 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
2580 if (i == svs.maxclients)
2583 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
2585 // received a command string - strip off the packaging and put it
2586 // into our string buffer with NULL termination
2589 length = min(length, (int)sizeof(stringbuf) - 1);
2590 memcpy(stringbuf, data, length);
2591 stringbuf[length] = 0;
2594 if (developer_extra.integer)
2596 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
2597 Com_HexDumpToConsole(data, length);
2600 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
2602 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
2604 if(challenge[i].time > 0)
2605 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
2607 if (besttime > challenge[i].time)
2608 besttime = challenge[best = i].time;
2610 // if we did not find an exact match, choose the oldest and
2611 // update address and string
2612 if (i == MAX_CHALLENGES)
2615 challenge[i].address = *peeraddress;
2616 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
2618 challenge[i].time = realtime;
2619 // send the challenge
2620 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
2623 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
2628 if (!(s = SearchInfostring(string, "challenge")))
2630 // validate the challenge
2631 for (i = 0;i < MAX_CHALLENGES;i++)
2632 if(challenge[i].time > 0)
2633 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
2635 // if the challenge is not recognized, drop the packet
2636 if (i == MAX_CHALLENGES)
2639 // check engine protocol
2640 if(!(s = SearchInfostring(string, "protocol")) || strcmp(s, "darkplaces 3"))
2642 if (developer_extra.integer)
2643 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
2644 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
2648 // see if this is a duplicate connection request or a disconnected
2649 // client who is rejoining to the same client slot
2650 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2652 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2654 // this is a known client...
2655 if (client->spawned)
2657 // client crashed and is coming back,
2658 // keep their stuff intact
2659 if (developer_extra.integer)
2660 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2661 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2663 SV_SendServerinfo(client);
2668 // client is still trying to connect,
2669 // so we send a duplicate reply
2670 if (developer_extra.integer)
2671 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2672 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2678 if (NetConn_PreventConnectFlood(peeraddress))
2681 // find an empty client slot for this new client
2682 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2685 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2687 // allocated connection
2688 if (developer_extra.integer)
2689 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2690 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2691 // now set up the client
2693 SV_ConnectClient(clientnum, conn);
2695 NetConn_Heartbeat(1);
2700 // no empty slots found - server is full
2701 if (developer_extra.integer)
2702 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2703 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2707 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2709 const char *challenge = NULL;
2711 // If there was a challenge in the getinfo message
2712 if (length > 8 && string[7] == ' ')
2713 challenge = string + 8;
2715 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2717 if (developer_extra.integer)
2718 Con_DPrintf("Sending reply to master %s - %s\n", addressstring2, response);
2719 NetConn_WriteString(mysocket, response, peeraddress);
2723 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2725 const char *challenge = NULL;
2727 // If there was a challenge in the getinfo message
2728 if (length > 10 && string[9] == ' ')
2729 challenge = string + 10;
2731 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2733 if (developer_extra.integer)
2734 Con_DPrintf("Sending reply to client %s - %s\n", addressstring2, response);
2735 NetConn_WriteString(mysocket, response, peeraddress);
2739 if (length >= 37 && !memcmp(string, "srcon HMAC-MD4 TIME ", 20))
2741 char *password = string + 20;
2742 char *timeval = string + 37;
2743 char *s = strchr(timeval, ' ');
2744 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2745 const char *userlevel;
2747 if(rcon_secure.integer > 1)
2751 return true; // invalid packet
2754 userlevel = RCon_Authenticate(peeraddress, password, s, endpos, hmac_mdfour_time_matching, timeval, endpos - timeval - 1); // not including the appended \0 into the HMAC
2755 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos);
2758 if (length >= 42 && !memcmp(string, "srcon HMAC-MD4 CHALLENGE ", 25))
2760 char *password = string + 25;
2761 char *challenge = string + 42;
2762 char *s = strchr(challenge, ' ');
2763 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2764 const char *userlevel;
2766 return true; // invalid packet
2769 userlevel = RCon_Authenticate(peeraddress, password, s, endpos, hmac_mdfour_challenge_matching, challenge, endpos - challenge - 1); // not including the appended \0 into the HMAC
2770 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos);
2773 if (length >= 5 && !memcmp(string, "rcon ", 5))
2776 char *s = string + 5;
2777 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2780 if(rcon_secure.integer > 0)
2783 for (i = 0;!ISWHITESPACE(*s);s++)
2784 if (i < (int)sizeof(password) - 1)
2786 if(ISWHITESPACE(*s) && s != endpos) // skip leading ugly space
2789 if (!ISWHITESPACE(password[0]))
2791 const char *userlevel = RCon_Authenticate(peeraddress, password, s, endpos, plaintext_matching, NULL, 0);
2792 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos);
2796 if (!strncmp(string, "extResponse ", 12))
2798 ++sv_net_extresponse_count;
2799 if(sv_net_extresponse_count > NET_EXTRESPONSE_MAX)
2800 sv_net_extresponse_count = NET_EXTRESPONSE_MAX;
2801 sv_net_extresponse_last = (sv_net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
2802 dpsnprintf(sv_net_extresponse[sv_net_extresponse_last], sizeof(sv_net_extresponse[sv_net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
2805 if (!strncmp(string, "ping", 4))
2807 if (developer_extra.integer)
2808 Con_DPrintf("Received ping from %s, sending ack\n", addressstring2);
2809 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2812 if (!strncmp(string, "ack", 3))
2814 // we may not have liked the packet, but it was a command packet, so
2815 // we're done processing this packet now
2818 // netquake control packets, supported for compatibility only, and only
2819 // when running game protocols that are normally served via this connection
2821 // (this protects more modern protocols against being used for
2822 // Quake packet flood Denial Of Service attacks)
2823 if (length >= 5 && (i = BuffBigLong(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))
2827 const char *protocolname;
2830 SZ_Clear(&net_message);
2831 SZ_Write(&net_message, data, length);
2837 if (developer_extra.integer)
2838 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2839 if(!islocal && sv_public.integer <= -2)
2842 protocolname = MSG_ReadString();
2843 protocolnumber = MSG_ReadByte();
2844 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2846 if (developer_extra.integer)
2847 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2848 SZ_Clear(&net_message);
2849 // save space for the header, filled in later
2850 MSG_WriteLong(&net_message, 0);
2851 MSG_WriteByte(&net_message, CCREP_REJECT);
2852 MSG_WriteString(&net_message, "Incompatible version.\n");
2853 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2854 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2855 SZ_Clear(&net_message);
2859 // see if this connect request comes from a known client
2860 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2862 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2864 // this is either a duplicate connection request
2865 // or coming back from a timeout
2866 // (if so, keep their stuff intact)
2869 if (developer_extra.integer)
2870 Con_DPrintf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2871 SZ_Clear(&net_message);
2872 // save space for the header, filled in later
2873 MSG_WriteLong(&net_message, 0);
2874 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2875 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2876 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2877 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2878 SZ_Clear(&net_message);
2880 // if client is already spawned, re-send the
2881 // serverinfo message as they'll need it to play
2882 if (client->spawned)
2885 SV_SendServerinfo(client);
2892 // this is a new client, check for connection flood
2893 if (NetConn_PreventConnectFlood(peeraddress))
2896 // find a slot for the new client
2897 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2900 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2902 // connect to the client
2903 // everything is allocated, just fill in the details
2904 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2905 if (developer_extra.integer)
2906 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2907 // send back the info about the server connection
2908 SZ_Clear(&net_message);
2909 // save space for the header, filled in later
2910 MSG_WriteLong(&net_message, 0);
2911 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2912 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2913 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2914 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2915 SZ_Clear(&net_message);
2916 // now set up the client struct
2918 SV_ConnectClient(clientnum, conn);
2920 NetConn_Heartbeat(1);
2925 if (developer_extra.integer)
2926 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2927 // no room; try to let player know
2928 SZ_Clear(&net_message);
2929 // save space for the header, filled in later
2930 MSG_WriteLong(&net_message, 0);
2931 MSG_WriteByte(&net_message, CCREP_REJECT);
2932 MSG_WriteString(&net_message, "Server is full.\n");
2933 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2934 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2935 SZ_Clear(&net_message);
2937 case CCREQ_SERVER_INFO:
2938 if (developer_extra.integer)
2939 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2940 if(!islocal && sv_public.integer <= -1)
2942 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2945 char myaddressstring[128];
2946 if (developer_extra.integer)
2947 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2948 SZ_Clear(&net_message);
2949 // save space for the header, filled in later
2950 MSG_WriteLong(&net_message, 0);
2951 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2952 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2953 MSG_WriteString(&net_message, myaddressstring);
2954 MSG_WriteString(&net_message, hostname.string);
2955 MSG_WriteString(&net_message, sv.name);
2956 // How many clients are there?
2957 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2958 if (svs.clients[i].active)
2960 MSG_WriteByte(&net_message, numclients);
2961 MSG_WriteByte(&net_message, svs.maxclients);
2962 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2963 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2964 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2965 SZ_Clear(&net_message);
2968 case CCREQ_PLAYER_INFO:
2969 if (developer_extra.integer)
2970 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2971 if(!islocal && sv_public.integer <= -1)
2975 int playerNumber, activeNumber, clientNumber;
2978 playerNumber = MSG_ReadByte();
2980 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2981 if (client->active && ++activeNumber == playerNumber)
2983 if (clientNumber != svs.maxclients)
2985 SZ_Clear(&net_message);
2986 // save space for the header, filled in later
2987 MSG_WriteLong(&net_message, 0);
2988 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2989 MSG_WriteByte(&net_message, playerNumber);
2990 MSG_WriteString(&net_message, client->name);
2991 MSG_WriteLong(&net_message, client->colors);
2992 MSG_WriteLong(&net_message, client->frags);
2993 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2994 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2995 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2996 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2997 SZ_Clear(&net_message);
3001 case CCREQ_RULE_INFO:
3002 if (developer_extra.integer)
3003 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
3004 if(!islocal && sv_public.integer <= -1)
3011 // find the search start location
3012 prevCvarName = MSG_ReadString();
3013 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
3015 // send the response
3016 SZ_Clear(&net_message);
3017 // save space for the header, filled in later
3018 MSG_WriteLong(&net_message, 0);
3019 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
3022 MSG_WriteString(&net_message, var->name);
3023 MSG_WriteString(&net_message, var->string);
3025 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
3026 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
3027 SZ_Clear(&net_message);
3033 SZ_Clear(&net_message);
3034 // we may not have liked the packet, but it was a valid control
3035 // packet, so we're done processing this packet now
3040 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
3043 SV_ReadClientMessage();
3051 void NetConn_ServerFrame(void)
3054 lhnetaddress_t peeraddress;
3055 for (i = 0;i < sv_numsockets;i++)
3056 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
3057 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
3058 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
3060 // never timeout loopback connections
3061 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
3063 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
3065 SV_DropClient(false);
3071 void NetConn_SleepMicroseconds(int microseconds)
3073 LHNET_SleepUntilPacket_Microseconds(microseconds);
3076 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
3080 lhnetaddress_t masteraddress;
3081 lhnetaddress_t broadcastaddress;
3084 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
3087 // 26000 is the default quake server port, servers on other ports will not
3089 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
3090 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
3094 for (i = 0;i < cl_numsockets;i++)
3098 const char *cmdname, *extraoptions;
3099 int af = LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i]));
3101 if(LHNETADDRESS_GetAddressType(&broadcastaddress) == af)
3103 // search LAN for Quake servers
3104 SZ_Clear(&net_message);
3105 // save space for the header, filled in later
3106 MSG_WriteLong(&net_message, 0);
3107 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
3108 MSG_WriteString(&net_message, "QUAKE");
3109 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
3110 StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
3111 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
3112 SZ_Clear(&net_message);
3114 // search LAN for DarkPlaces servers
3115 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getstatus", &broadcastaddress);
3118 // build the getservers message to send to the dpmaster master servers
3119 if (LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == LHNETADDRESSTYPE_INET6)
3121 cmdname = "getserversExt";
3122 extraoptions = " ipv4 ipv6"; // ask for IPv4 and IPv6 servers
3126 cmdname = "getservers";
3129 dpsnprintf(request, sizeof(request), "\377\377\377\377%s %s %u empty full%s", cmdname, gamename, NET_PROTOCOL_VERSION, extraoptions);
3132 for (masternum = 0;sv_masters[masternum].name;masternum++)
3134 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == af)
3137 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
3141 // search favorite servers
3142 for(j = 0; j < nFavorites; ++j)
3144 if(LHNETADDRESS_GetAddressType(&favorites[j]) == af)
3146 if(LHNETADDRESS_ToString(&favorites[j], request, sizeof(request), true))
3147 NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, request, true );
3154 // only query QuakeWorld servers when the user wants to
3157 for (i = 0;i < cl_numsockets;i++)
3161 int af = LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i]));
3163 if(LHNETADDRESS_GetAddressType(&broadcastaddress) == af)
3165 // search LAN for QuakeWorld servers
3166 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
3168 // build the getservers message to send to the qwmaster master servers
3169 // note this has no -1 prefix, and the trailing nul byte is sent
3170 dpsnprintf(request, sizeof(request), "c\n");
3174 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
3176 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
3178 if (m_state != m_slist)
3180 char lookupstring[128];
3181 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
3182 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
3185 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
3189 // search favorite servers
3190 for(j = 0; j < nFavorites; ++j)
3192 if(LHNETADDRESS_GetAddressType(&favorites[j]) == af)
3194 if(LHNETADDRESS_ToString(&favorites[j], request, sizeof(request), true))
3196 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &favorites[j]);
3197 NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, request, true );
3204 if (!masterquerycount)
3206 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
3207 M_Update_Return_Reason("No network");
3211 void NetConn_Heartbeat(int priority)
3213 lhnetaddress_t masteraddress;
3215 lhnetsocket_t *mysocket;
3217 // if it's a state change (client connected), limit next heartbeat to no
3218 // more than 30 sec in the future
3219 if (priority == 1 && nextheartbeattime > realtime + 30.0)
3220 nextheartbeattime = realtime + 30.0;
3222 // limit heartbeatperiod to 30 to 270 second range,
3223 // lower limit is to avoid abusing master servers with excess traffic,
3224 // upper limit is to avoid timing out on the master server (which uses
3226 if (sv_heartbeatperiod.value < 30)
3227 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
3228 if (sv_heartbeatperiod.value > 270)
3229 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
3231 // make advertising optional and don't advertise singleplayer games, and
3232 // only send a heartbeat as often as the admin wants
3233 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
3235 nextheartbeattime = realtime + sv_heartbeatperiod.value;
3236 for (masternum = 0;sv_masters[masternum].name;masternum++)
3237 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
3238 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
3242 static void Net_Heartbeat_f(void)
3245 NetConn_Heartbeat(2);
3247 Con_Print("No server running, can not heartbeat to master server.\n");
3250 void PrintStats(netconn_t *conn)
3252 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
3253 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->outgoing_unreliable_sequence, conn->qw.incoming_sequence);
3255 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
3258 void Net_Stats_f(void)
3261 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
3262 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
3263 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
3264 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
3265 Con_Printf("packetsSent = %i\n", packetsSent);
3266 Con_Printf("packetsReSent = %i\n", packetsReSent);
3267 Con_Printf("packetsReceived = %i\n", packetsReceived);
3268 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
3269 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
3270 Con_Print("connections =\n");
3271 for (conn = netconn_list;conn;conn = conn->next)
3275 void Net_Refresh_f(void)
3277 if (m_state != m_slist) {
3278 Con_Print("Sending new requests to master servers\n");
3279 ServerList_QueryList(false, true, false, true);
3280 Con_Print("Listening for replies...\n");
3282 ServerList_QueryList(false, true, false, false);
3285 void Net_Slist_f(void)
3287 ServerList_ResetMasks();
3288 serverlist_sortbyfield = SLIF_PING;
3289 serverlist_sortflags = 0;
3290 if (m_state != m_slist) {
3291 Con_Print("Sending requests to master servers\n");
3292 ServerList_QueryList(true, true, false, true);
3293 Con_Print("Listening for replies...\n");
3295 ServerList_QueryList(true, true, false, false);
3298 void Net_SlistQW_f(void)
3300 ServerList_ResetMasks();
3301 serverlist_sortbyfield = SLIF_PING;
3302 serverlist_sortflags = 0;
3303 if (m_state != m_slist) {
3304 Con_Print("Sending requests to master servers\n");
3305 ServerList_QueryList(true, false, true, true);
3306 serverlist_consoleoutput = true;
3307 Con_Print("Listening for replies...\n");
3309 ServerList_QueryList(true, false, true, false);
3312 void NetConn_Init(void)
3315 lhnetaddress_t tempaddress;
3316 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
3317 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
3318 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
3319 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
3320 Cmd_AddCommand("net_refresh", Net_Refresh_f, "query dp master servers and refresh all server information");
3321 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
3322 Cvar_RegisterVariable(&rcon_restricted_password);
3323 Cvar_RegisterVariable(&rcon_restricted_commands);
3324 Cvar_RegisterVariable(&rcon_secure_maxdiff);
3325 Cvar_RegisterVariable(&net_slist_queriespersecond);
3326 Cvar_RegisterVariable(&net_slist_queriesperframe);
3327 Cvar_RegisterVariable(&net_slist_timeout);
3328 Cvar_RegisterVariable(&net_slist_maxtries);
3329 Cvar_RegisterVariable(&net_slist_favorites);
3330 Cvar_RegisterVariable(&net_slist_pause);
3331 Cvar_RegisterVariable(&net_messagetimeout);
3332 Cvar_RegisterVariable(&net_connecttimeout);
3333 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
3334 Cvar_RegisterVariable(&cl_netlocalping);
3335 Cvar_RegisterVariable(&cl_netpacketloss_send);
3336 Cvar_RegisterVariable(&cl_netpacketloss_receive);
3337 Cvar_RegisterVariable(&hostname);
3338 Cvar_RegisterVariable(&developer_networking);
3339 Cvar_RegisterVariable(&cl_netport);
3340 Cvar_RegisterVariable(&sv_netport);
3341 Cvar_RegisterVariable(&net_address);
3342 Cvar_RegisterVariable(&net_address_ipv6);
3343 Cvar_RegisterVariable(&sv_public);
3344 Cvar_RegisterVariable(&sv_heartbeatperiod);
3345 for (i = 0;sv_masters[i].name;i++)
3346 Cvar_RegisterVariable(&sv_masters[i]);
3347 Cvar_RegisterVariable(&gameversion);
3348 Cvar_RegisterVariable(&gameversion_min);
3349 Cvar_RegisterVariable(&gameversion_max);
3350 // 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.
3351 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
3353 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
3355 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
3356 Cvar_SetQuick(&net_address, com_argv[i + 1]);
3359 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
3361 // 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
3362 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
3364 i = atoi(com_argv[i + 1]);
3365 if (i >= 0 && i < 65536)
3367 Con_Printf("-port option used, setting port cvar to %i\n", i);
3368 Cvar_SetValueQuick(&sv_netport, i);
3371 Con_Printf("-port option used, but %i is not a valid port number\n", i);
3375 net_message.data = net_message_buf;
3376 net_message.maxsize = sizeof(net_message_buf);
3377 net_message.cursize = 0;
3381 void NetConn_Shutdown(void)
3383 NetConn_CloseClientPorts();
3384 NetConn_CloseServerPorts();