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"};
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 net_extresponse[NET_EXTRESPONSE_MAX][1400];
136 int net_extresponse_count = 0;
137 int net_extresponse_last = 0;
139 // ServerList interface
140 serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT];
141 serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT];
143 serverlist_infofield_t serverlist_sortbyfield;
144 int serverlist_sortflags;
146 int serverlist_viewcount = 0;
147 serverlist_entry_t *serverlist_viewlist[SERVERLIST_VIEWLISTSIZE];
149 int serverlist_cachecount;
150 serverlist_entry_t serverlist_cache[SERVERLIST_TOTALSIZE];
152 qboolean serverlist_consoleoutput;
154 static int nFavorites = 0;
155 static lhnetaddress_t favorites[256];
157 void NetConn_UpdateFavorites(void)
161 p = net_slist_favorites.string;
162 while((size_t) nFavorites < sizeof(favorites) / sizeof(*favorites) && COM_ParseToken_Console(&p))
164 if(LHNETADDRESS_FromString(&favorites[nFavorites], com_token, 26000))
169 /// helper function to insert a value into the viewset
170 /// spare entries will be removed
171 static void _ServerList_ViewList_Helper_InsertBefore( int index, serverlist_entry_t *entry )
174 if( serverlist_viewcount < SERVERLIST_VIEWLISTSIZE ) {
175 i = serverlist_viewcount++;
177 i = SERVERLIST_VIEWLISTSIZE - 1;
180 for( ; i > index ; i-- )
181 serverlist_viewlist[ i ] = serverlist_viewlist[ i - 1 ];
183 serverlist_viewlist[index] = entry;
186 /// we suppose serverlist_viewcount to be valid, ie > 0
187 static void _ServerList_ViewList_Helper_Remove( int index )
189 serverlist_viewcount--;
190 for( ; index < serverlist_viewcount ; index++ )
191 serverlist_viewlist[index] = serverlist_viewlist[index + 1];
194 /// \returns true if A should be inserted before B
195 static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_entry_t *B )
197 int result = 0; // > 0 if for numbers A > B and for text if A < B
199 if( serverlist_sortflags & SLSF_FAVORITESFIRST )
201 if(A->info.isfavorite != B->info.isfavorite)
202 return A->info.isfavorite;
205 switch( serverlist_sortbyfield ) {
207 result = A->info.ping - B->info.ping;
209 case SLIF_MAXPLAYERS:
210 result = A->info.maxplayers - B->info.maxplayers;
212 case SLIF_NUMPLAYERS:
213 result = A->info.numplayers - B->info.numplayers;
216 result = A->info.numbots - B->info.numbots;
219 result = A->info.numhumans - B->info.numhumans;
222 result = A->info.freeslots - B->info.freeslots;
225 result = A->info.protocol - B->info.protocol;
228 result = strcmp( B->info.cname, A->info.cname );
231 result = strcasecmp( B->info.game, A->info.game );
234 result = strcasecmp( B->info.map, A->info.map );
237 result = strcasecmp( B->info.mod, A->info.mod );
240 result = strcasecmp( B->info.name, A->info.name );
243 result = strcasecmp( B->info.qcstatus, A->info.qcstatus ); // not really THAT useful, though
245 case SLIF_ISFAVORITE:
246 result = !!B->info.isfavorite - !!A->info.isfavorite;
249 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
255 if( serverlist_sortflags & SLSF_DESCENDING )
261 // if the chosen sort key is identical, sort by index
262 // (makes this a stable sort, so that later replies from servers won't
263 // shuffle the servers around when they have the same ping)
267 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
269 // This should actually be done with some intermediate and end-of-function return
281 case SLMO_GREATEREQUAL:
283 case SLMO_NOTCONTAIN:
284 case SLMO_STARTSWITH:
285 case SLMO_NOTSTARTSWITH:
288 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
293 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
296 char bufferA[ 1400 ], bufferB[ 1400 ]; // should be more than enough
297 COM_StringDecolorize(A, 0, bufferA, sizeof(bufferA), false);
298 for (i = 0;i < (int)sizeof(bufferA)-1 && bufferA[i];i++)
299 bufferA[i] = (bufferA[i] >= 'A' && bufferA[i] <= 'Z') ? (bufferA[i] + 'a' - 'A') : bufferA[i];
301 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
302 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
305 // Same here, also using an intermediate & final return would be more appropriate
309 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
310 case SLMO_NOTCONTAIN:
311 return !*bufferB || !strstr( bufferA, bufferB );
312 case SLMO_STARTSWITH:
313 //Con_Printf("startsWith: %s %s\n", bufferA, bufferB);
314 return *bufferB && !memcmp(bufferA, bufferB, strlen(bufferB));
315 case SLMO_NOTSTARTSWITH:
316 return !*bufferB || memcmp(bufferA, bufferB, strlen(bufferB));
318 return strcmp( bufferA, bufferB ) < 0;
320 return strcmp( bufferA, bufferB ) <= 0;
322 return strcmp( bufferA, bufferB ) == 0;
324 return strcmp( bufferA, bufferB ) > 0;
326 return strcmp( bufferA, bufferB ) != 0;
327 case SLMO_GREATEREQUAL:
328 return strcmp( bufferA, bufferB ) >= 0;
330 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
335 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
337 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
339 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
341 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
343 if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) )
345 if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) )
347 if( !_ServerList_CompareInt( info->freeslots, mask->tests[SLIF_FREESLOTS], mask->info.freeslots ) )
349 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
351 if( *mask->info.cname
352 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
355 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
358 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
361 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
364 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
366 if( *mask->info.qcstatus
367 && !_ServerList_CompareStr( info->qcstatus, mask->tests[SLIF_QCSTATUS], mask->info.qcstatus ) )
369 if( *mask->info.players
370 && !_ServerList_CompareStr( info->players, mask->tests[SLIF_PLAYERS], mask->info.players ) )
372 if( !_ServerList_CompareInt( info->isfavorite, mask->tests[SLIF_ISFAVORITE], mask->info.isfavorite ))
377 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
379 int start, end, mid, i;
382 // reject incompatible servers
384 entry->info.gameversion != gameversion.integer
387 gameversion_min.integer >= 0 // min/max range set by user/mod?
388 && gameversion_max.integer >= 0
389 && gameversion_min.integer >= entry->info.gameversion // version of server in min/max range?
390 && gameversion_max.integer <= entry->info.gameversion
395 // refresh the "favorite" status
396 entry->info.isfavorite = false;
397 if(LHNETADDRESS_FromString(&addr, entry->info.cname, 26000))
399 for(i = 0; i < nFavorites; ++i)
401 if(LHNETADDRESS_Compare(&addr, &favorites[i]) == 0)
403 entry->info.isfavorite = true;
409 // FIXME: change this to be more readable (...)
410 // now check whether it passes through the masks
411 for( start = 0 ; start < SERVERLIST_ANDMASKCOUNT && serverlist_andmasks[start].active; start++ )
412 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
415 for( start = 0 ; start < SERVERLIST_ORMASKCOUNT && serverlist_ormasks[start].active ; start++ )
416 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
418 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
421 if( !serverlist_viewcount ) {
422 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
425 // ok, insert it, we just need to find out where exactly:
428 // check whether to insert it as new first item
429 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[0] ) ) {
430 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
432 } // check whether to insert it as new last item
433 else if( !_ServerList_Entry_Compare( entry, serverlist_viewlist[serverlist_viewcount - 1] ) ) {
434 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
438 end = serverlist_viewcount - 1;
439 while( end > start + 1 )
441 mid = (start + end) / 2;
442 // test the item that lies in the middle between start and end
443 if( _ServerList_Entry_Compare( entry, serverlist_viewlist[mid] ) )
444 // the item has to be in the upper half
447 // the item has to be in the lower half
450 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
453 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
456 for( i = 0; i < serverlist_viewcount; i++ )
458 if (serverlist_viewlist[i] == entry)
460 _ServerList_ViewList_Helper_Remove(i);
466 void ServerList_RebuildViewList(void)
470 serverlist_viewcount = 0;
471 for( i = 0 ; i < serverlist_cachecount ; i++ ) {
472 serverlist_entry_t *entry = &serverlist_cache[i];
473 // also display entries that are currently being refreshed [11/8/2007 Black]
474 if( entry->query == SQS_QUERIED || entry->query == SQS_REFRESHING )
475 ServerList_ViewList_Insert( entry );
479 void ServerList_ResetMasks(void)
483 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
484 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
485 // numbots needs to be compared to -1 to always succeed
486 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
487 serverlist_andmasks[i].info.numbots = -1;
488 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
489 serverlist_ormasks[i].info.numbots = -1;
492 void ServerList_GetPlayerStatistics(int *numplayerspointer, int *maxplayerspointer)
495 int numplayers = 0, maxplayers = 0;
496 for (i = 0;i < serverlist_cachecount;i++)
498 if (serverlist_cache[i].query == SQS_QUERIED)
500 numplayers += serverlist_cache[i].info.numhumans;
501 maxplayers += serverlist_cache[i].info.maxplayers;
504 *numplayerspointer = numplayers;
505 *maxplayerspointer = maxplayers;
509 static void _ServerList_Test(void)
512 for( i = 0 ; i < 1024 ; i++ ) {
513 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
514 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
515 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
516 serverlist_cache[serverlist_cachecount].finished = true;
517 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 );
518 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
519 serverlist_cachecount++;
524 void ServerList_QueryList(qboolean resetcache, qboolean querydp, qboolean queryqw, qboolean consoleoutput)
526 masterquerytime = realtime;
527 masterquerycount = 0;
528 masterreplycount = 0;
530 serverquerycount = 0;
531 serverreplycount = 0;
532 serverlist_cachecount = 0;
533 serverlist_viewcount = 0;
535 // refresh all entries
537 for( n = 0 ; n < serverlist_cachecount ; n++ ) {
538 serverlist_entry_t *entry = &serverlist_cache[ n ];
539 entry->query = SQS_REFRESHING;
540 entry->querycounter = 0;
543 serverlist_consoleoutput = consoleoutput;
545 //_ServerList_Test();
547 NetConn_QueryMasters(querydp, queryqw);
552 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
554 int length = LHNET_Read(mysocket, data, maxlength, peeraddress);
558 if (cl_netpacketloss_receive.integer)
559 for (i = 0;i < cl_numsockets;i++)
560 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer)
562 if (developer_networking.integer)
564 char addressstring[128], addressstring2[128];
565 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
568 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
569 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", (void *)mysocket, addressstring, (void *)data, maxlength, (void *)peeraddress, length, addressstring2);
570 Com_HexDumpToConsole((unsigned char *)data, length);
573 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", (void *)mysocket, addressstring, (void *)data, maxlength, (void *)peeraddress, length);
578 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
582 if (cl_netpacketloss_send.integer)
583 for (i = 0;i < cl_numsockets;i++)
584 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer)
586 ret = LHNET_Write(mysocket, data, length, peeraddress);
587 if (developer_networking.integer)
589 char addressstring[128], addressstring2[128];
590 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
591 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
592 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)");
593 Com_HexDumpToConsole((unsigned char *)data, length);
598 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
600 // note this does not include the trailing NULL because we add that in the parser
601 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
604 qboolean NetConn_CanSend(netconn_t *conn)
606 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
607 conn->outgoing_netgraph[conn->outgoing_packetcounter].time = realtime;
608 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_NOPACKET;
609 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
610 conn->outgoing_netgraph[conn->outgoing_packetcounter].ackbytes = NETGRAPH_NOPACKET;
611 if (realtime > conn->cleartime)
615 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_CHOKEDPACKET;
620 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate, qboolean quakesignon_suppressreliables)
624 // if this packet was supposedly choked, but we find ourselves sending one
625 // anyway, make sure the size counting starts at zero
626 // (this mostly happens on level changes and disconnects and such)
627 if (conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes == NETGRAPH_CHOKEDPACKET)
628 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_NOPACKET;
630 if (protocol == PROTOCOL_QUAKEWORLD)
633 qboolean sendreliable;
635 // note that it is ok to send empty messages to the qw server,
636 // otherwise it won't respond to us at all
638 sendreliable = false;
639 // if the remote side dropped the last reliable message, resend it
640 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
642 // if the reliable transmit buffer is empty, copy the current message out
643 if (!conn->sendMessageLength && conn->message.cursize)
645 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
646 conn->sendMessageLength = conn->message.cursize;
647 SZ_Clear(&conn->message); // clear the message buffer
648 conn->qw.reliable_sequence ^= 1;
651 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
652 *((int *)(sendbuffer + 0)) = LittleLong((unsigned int)conn->outgoing_unreliable_sequence | ((unsigned int)sendreliable<<31));
653 // last received unreliable packet number, and last received reliable packet number (0 or 1)
654 *((int *)(sendbuffer + 4)) = LittleLong((unsigned int)conn->qw.incoming_sequence | ((unsigned int)conn->qw.incoming_reliable_sequence<<31));
656 conn->outgoing_unreliable_sequence++;
657 // client sends qport in every packet
658 if (conn == cls.netcon)
660 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
662 // also update cls.qw_outgoing_sequence
663 cls.qw_outgoing_sequence = conn->outgoing_unreliable_sequence;
665 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
667 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
671 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes += packetLen + 28;
673 // add the reliable message if there is one
676 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += conn->sendMessageLength + 28;
677 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
678 packetLen += conn->sendMessageLength;
679 conn->qw.last_reliable_sequence = conn->outgoing_unreliable_sequence;
682 // add the unreliable message if possible
683 if (packetLen + data->cursize <= 1400)
685 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes += data->cursize + 28;
686 memcpy(sendbuffer + packetLen, data->data, data->cursize);
687 packetLen += data->cursize;
690 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
693 unreliableMessagesSent++;
695 totallen += packetLen + 28;
699 unsigned int packetLen;
700 unsigned int dataLen;
702 unsigned int *header;
704 // if a reliable message fragment has been lost, send it again
705 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
707 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
709 dataLen = conn->sendMessageLength;
714 dataLen = MAX_PACKETFRAGMENT;
718 packetLen = NET_HEADERSIZE + dataLen;
720 header = (unsigned int *)sendbuffer;
721 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
722 header[1] = BigLong(conn->nq.sendSequence - 1);
723 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
725 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += packetLen + 28;
727 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
729 conn->lastSendTime = realtime;
733 totallen += packetLen + 28;
736 // if we have a new reliable message to send, do so
737 if (!conn->sendMessageLength && conn->message.cursize && !quakesignon_suppressreliables)
739 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
741 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
742 conn->message.overflowed = true;
746 if (developer_networking.integer && conn == cls.netcon)
748 Con_Print("client sending reliable message to server:\n");
749 SZ_HexDumpToConsole(&conn->message);
752 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
753 conn->sendMessageLength = conn->message.cursize;
754 SZ_Clear(&conn->message);
756 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
758 dataLen = conn->sendMessageLength;
763 dataLen = MAX_PACKETFRAGMENT;
767 packetLen = NET_HEADERSIZE + dataLen;
769 header = (unsigned int *)sendbuffer;
770 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
771 header[1] = BigLong(conn->nq.sendSequence);
772 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
774 conn->nq.sendSequence++;
776 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += packetLen + 28;
778 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
780 conn->lastSendTime = realtime;
782 reliableMessagesSent++;
784 totallen += packetLen + 28;
787 // if we have an unreliable message to send, do so
790 packetLen = NET_HEADERSIZE + data->cursize;
792 if (packetLen > (int)sizeof(sendbuffer))
794 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
798 header = (unsigned int *)sendbuffer;
799 header[0] = BigLong(packetLen | NETFLAG_UNRELIABLE);
800 header[1] = BigLong(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 Con_Printf("Client opened a socket on address %s\n", addressstring2);
863 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
864 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
868 Con_Printf("Client unable to parse address %s\n", addressstring);
871 void NetConn_OpenClientPorts(void)
874 NetConn_CloseClientPorts();
875 port = bound(0, cl_netport.integer, 65535);
876 if (cl_netport.integer != port)
877 Cvar_SetValueQuick(&cl_netport, port);
879 Con_Printf("Client using an automatically assigned port\n");
881 Con_Printf("Client using port %i\n", port);
882 NetConn_OpenClientPort(NULL, LHNETADDRESSTYPE_LOOP, 2);
883 NetConn_OpenClientPort(net_address.string, LHNETADDRESSTYPE_INET4, port);
884 NetConn_OpenClientPort(net_address_ipv6.string, LHNETADDRESSTYPE_INET6, port);
887 void NetConn_CloseServerPorts(void)
889 for (;sv_numsockets > 0;sv_numsockets--)
890 if (sv_sockets[sv_numsockets - 1])
891 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
894 qboolean NetConn_OpenServerPort(const char *addressstring, lhnetaddresstype_t addresstype, int defaultport, int range)
896 lhnetaddress_t address;
899 char addressstring2[1024];
902 for (port = defaultport; port <= defaultport + range; port++)
904 if (addressstring && addressstring[0])
905 success = LHNETADDRESS_FromString(&address, addressstring, port);
907 success = LHNETADDRESS_FromPort(&address, addresstype, port);
910 if ((s = LHNET_OpenSocket_Connectionless(&address)))
912 sv_sockets[sv_numsockets++] = s;
913 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
914 Con_Printf("Server listening on address %s\n", addressstring2);
919 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
920 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
925 Con_Printf("Server unable to parse address %s\n", addressstring);
926 // if it cant parse one address, it wont be able to parse another for sure
933 void NetConn_OpenServerPorts(int opennetports)
936 NetConn_CloseServerPorts();
937 NetConn_UpdateSockets();
938 port = bound(0, sv_netport.integer, 65535);
941 Con_Printf("Server using port %i\n", port);
942 if (sv_netport.integer != port)
943 Cvar_SetValueQuick(&sv_netport, port);
944 if (cls.state != ca_dedicated)
945 NetConn_OpenServerPort(NULL, LHNETADDRESSTYPE_LOOP, 1, 1);
948 qboolean ip4success = NetConn_OpenServerPort(net_address.string, LHNETADDRESSTYPE_INET4, port, 100);
949 NetConn_OpenServerPort(net_address_ipv6.string, LHNETADDRESSTYPE_INET6, port, ip4success ? 1 : 100);
951 if (sv_numsockets == 0)
952 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
955 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
957 int i, a = LHNETADDRESS_GetAddressType(address);
958 for (i = 0;i < cl_numsockets;i++)
959 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
960 return cl_sockets[i];
964 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
966 int i, a = LHNETADDRESS_GetAddressType(address);
967 for (i = 0;i < sv_numsockets;i++)
968 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
969 return sv_sockets[i];
973 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
976 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
977 conn->mysocket = mysocket;
978 conn->peeraddress = *peeraddress;
979 conn->lastMessageTime = realtime;
980 conn->message.data = conn->messagedata;
981 conn->message.maxsize = sizeof(conn->messagedata);
982 conn->message.cursize = 0;
983 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
984 // reduce effectiveness of connection request floods
985 conn->timeout = realtime + net_connecttimeout.value;
986 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
987 conn->next = netconn_list;
992 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress);
993 void NetConn_Close(netconn_t *conn)
996 // remove connection from list
998 // allow the client to reconnect immediately
999 NetConn_ClearConnectFlood(&(conn->peeraddress));
1001 if (conn == netconn_list)
1002 netconn_list = conn->next;
1005 for (c = netconn_list;c;c = c->next)
1007 if (c->next == conn)
1009 c->next = conn->next;
1013 // not found in list, we'll avoid crashing here...
1021 static int clientport = -1;
1022 static int clientport2 = -1;
1023 static int hostport = -1;
1024 void NetConn_UpdateSockets(void)
1028 if (cls.state != ca_dedicated)
1030 if (clientport2 != cl_netport.integer)
1032 clientport2 = cl_netport.integer;
1033 if (cls.state == ca_connected)
1034 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
1036 if (cls.state == ca_disconnected && clientport != clientport2)
1038 clientport = clientport2;
1039 NetConn_CloseClientPorts();
1041 if (cl_numsockets == 0)
1042 NetConn_OpenClientPorts();
1045 if (hostport != sv_netport.integer)
1047 hostport = sv_netport.integer;
1049 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
1052 for (j = 0;j < MAX_RCONS;j++)
1054 i = (cls.rcon_ringpos + j + 1) % MAX_RCONS;
1055 if(cls.rcon_commands[i][0])
1057 if(realtime > cls.rcon_timeout[i])
1060 LHNETADDRESS_ToString(&cls.rcon_addresses[i], s, sizeof(s), true);
1061 Con_Printf("rcon to %s (for command %s) failed: challenge request timed out\n", s, cls.rcon_commands[i]);
1062 cls.rcon_commands[i][0] = 0;
1070 static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout)
1072 int originallength = length;
1076 if (protocol == PROTOCOL_QUAKEWORLD)
1078 int sequence, sequence_ack;
1079 int reliable_ack, reliable_message;
1083 sequence = LittleLong(*((int *)(data + 0)));
1084 sequence_ack = LittleLong(*((int *)(data + 4)));
1088 if (conn != cls.netcon)
1093 // 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?)
1094 qport = LittleShort(*((int *)(data + 8)));
1100 reliable_message = (sequence >> 31) & 1;
1101 reliable_ack = (sequence_ack >> 31) & 1;
1102 sequence &= ~(1<<31);
1103 sequence_ack &= ~(1<<31);
1104 if (sequence <= conn->qw.incoming_sequence)
1106 //Con_DPrint("Got a stale datagram\n");
1109 count = sequence - (conn->qw.incoming_sequence + 1);
1112 droppedDatagrams += count;
1113 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1116 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1117 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1118 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = NETGRAPH_LOSTPACKET;
1119 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1120 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1123 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1124 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1125 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = originallength + 28;
1126 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1127 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1128 if (reliable_ack == conn->qw.reliable_sequence)
1130 // received, now we will be able to send another reliable message
1131 conn->sendMessageLength = 0;
1132 reliableMessagesReceived++;
1134 conn->qw.incoming_sequence = sequence;
1135 if (conn == cls.netcon)
1136 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
1137 conn->qw.incoming_acknowledged = sequence_ack;
1138 conn->qw.incoming_reliable_acknowledged = reliable_ack;
1139 if (reliable_message)
1140 conn->qw.incoming_reliable_sequence ^= 1;
1141 conn->lastMessageTime = realtime;
1142 conn->timeout = realtime + newtimeout;
1143 unreliableMessagesReceived++;
1144 SZ_Clear(&net_message);
1145 SZ_Write(&net_message, data, length);
1153 unsigned int sequence;
1156 qlength = (unsigned int)BigLong(((int *)data)[0]);
1157 flags = qlength & ~NETFLAG_LENGTH_MASK;
1158 qlength &= NETFLAG_LENGTH_MASK;
1159 // control packets were already handled
1160 if (!(flags & NETFLAG_CTL) && qlength == length)
1162 sequence = BigLong(((int *)data)[1]);
1166 if (flags & NETFLAG_UNRELIABLE)
1168 if (sequence >= conn->nq.unreliableReceiveSequence)
1170 if (sequence > conn->nq.unreliableReceiveSequence)
1172 count = sequence - conn->nq.unreliableReceiveSequence;
1173 droppedDatagrams += count;
1174 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1177 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1178 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1179 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = NETGRAPH_LOSTPACKET;
1180 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1181 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1184 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1185 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1186 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = originallength + 28;
1187 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1188 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1189 conn->nq.unreliableReceiveSequence = sequence + 1;
1190 conn->lastMessageTime = realtime;
1191 conn->timeout = realtime + newtimeout;
1192 unreliableMessagesReceived++;
1195 SZ_Clear(&net_message);
1196 SZ_Write(&net_message, data, length);
1202 // Con_DPrint("Got a stale datagram\n");
1205 else if (flags & NETFLAG_ACK)
1207 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes += originallength + 28;
1208 if (sequence == (conn->nq.sendSequence - 1))
1210 if (sequence == conn->nq.ackSequence)
1212 conn->nq.ackSequence++;
1213 if (conn->nq.ackSequence != conn->nq.sendSequence)
1214 Con_DPrint("ack sequencing error\n");
1215 conn->lastMessageTime = realtime;
1216 conn->timeout = realtime + newtimeout;
1217 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1219 unsigned int packetLen;
1220 unsigned int dataLen;
1222 unsigned int *header;
1224 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1225 memmove(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1227 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1229 dataLen = conn->sendMessageLength;
1234 dataLen = MAX_PACKETFRAGMENT;
1238 packetLen = NET_HEADERSIZE + dataLen;
1240 header = (unsigned int *)sendbuffer;
1241 header[0] = BigLong(packetLen | (NETFLAG_DATA | eom));
1242 header[1] = BigLong(conn->nq.sendSequence);
1243 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1245 conn->nq.sendSequence++;
1247 if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen)
1249 conn->lastSendTime = realtime;
1254 conn->sendMessageLength = 0;
1257 // Con_DPrint("Duplicate ACK received\n");
1260 // Con_DPrint("Stale ACK received\n");
1263 else if (flags & NETFLAG_DATA)
1265 unsigned int temppacket[2];
1266 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes += originallength + 28;
1267 conn->outgoing_netgraph[conn->outgoing_packetcounter].ackbytes += 8 + 28;
1268 temppacket[0] = BigLong(8 | NETFLAG_ACK);
1269 temppacket[1] = BigLong(sequence);
1270 NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress);
1271 if (sequence == conn->nq.receiveSequence)
1273 conn->lastMessageTime = realtime;
1274 conn->timeout = realtime + newtimeout;
1275 conn->nq.receiveSequence++;
1276 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1277 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1278 conn->receiveMessageLength += length;
1280 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1281 "Dropping the message!\n", sequence );
1282 conn->receiveMessageLength = 0;
1285 if (flags & NETFLAG_EOM)
1287 reliableMessagesReceived++;
1288 length = conn->receiveMessageLength;
1289 conn->receiveMessageLength = 0;
1292 SZ_Clear(&net_message);
1293 SZ_Write(&net_message, conn->receiveMessage, length);
1300 receivedDuplicateCount++;
1308 void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1310 cls.connect_trying = false;
1311 M_Update_Return_Reason("");
1312 // the connection request succeeded, stop current connection and set up a new connection
1314 // if we're connecting to a remote server, shut down any local server
1315 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1316 Host_ShutdownServer ();
1317 // allocate a net connection to keep track of things
1318 cls.netcon = NetConn_Open(mysocket, peeraddress);
1319 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1320 key_dest = key_game;
1322 cls.demonum = -1; // not in the demo loop now
1323 cls.state = ca_connected;
1324 cls.signon = 0; // need all the signon messages before playing
1325 cls.protocol = initialprotocol;
1326 // reset move sequence numbering on this new connection
1327 cls.servermovesequence = 0;
1328 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1329 Cmd_ForwardStringToServer("new");
1330 if (cls.protocol == PROTOCOL_QUAKE)
1332 // write a keepalive (clc_nop) as it seems to greatly improve the
1333 // chances of connecting to a netquake server
1335 unsigned char buf[4];
1336 memset(&msg, 0, sizeof(msg));
1338 msg.maxsize = sizeof(buf);
1339 MSG_WriteChar(&msg, clc_nop);
1340 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000, false);
1344 int NetConn_IsLocalGame(void)
1346 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1351 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1355 serverlist_entry_t *entry = NULL;
1357 // search the cache for this server and update it
1358 for (n = 0;n < serverlist_cachecount;n++) {
1359 entry = &serverlist_cache[ n ];
1360 if (!strcmp(addressstring, entry->info.cname))
1364 if (n == serverlist_cachecount)
1366 // LAN search doesnt require an answer from the master server so we wont
1367 // know the ping nor will it be initialized already...
1370 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1373 entry = &serverlist_cache[n];
1375 memset(entry, 0, sizeof(*entry));
1376 // store the data the engine cares about (address and ping)
1377 strlcpy(entry->info.cname, addressstring, sizeof(entry->info.cname));
1378 entry->info.ping = 100000;
1379 entry->querytime = realtime;
1380 // if not in the slist menu we should print the server to console
1381 if (serverlist_consoleoutput)
1382 Con_Printf("querying %s\n", addressstring);
1383 ++serverlist_cachecount;
1385 // if this is the first reply from this server, count it as having replied
1386 pingtime = (int)((realtime - entry->querytime) * 1000.0 + 0.5);
1387 pingtime = bound(0, pingtime, 9999);
1388 if (entry->query == SQS_REFRESHING) {
1389 entry->info.ping = pingtime;
1390 entry->query = SQS_QUERIED;
1392 // convert to unsigned to catch the -1
1393 // 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]
1394 entry->info.ping = min((unsigned) entry->info.ping, (unsigned) pingtime);
1398 // other server info is updated by the caller
1402 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1404 serverlist_entry_t *entry = &serverlist_cache[n];
1405 serverlist_info_t *info = &entry->info;
1406 // update description strings for engine menu and console output
1407 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);
1408 dpsnprintf(entry->line2, sizeof(serverlist_cache[n].line2), "^4%-21.21s %-19.19s ^%c%-17.17s^4 %-20.20s", info->cname, info->game,
1410 info->gameversion != gameversion.integer
1413 gameversion_min.integer >= 0 // min/max range set by user/mod?
1414 && gameversion_max.integer >= 0
1415 && gameversion_min.integer >= info->gameversion // version of server in min/max range?
1416 && gameversion_max.integer <= info->gameversion
1419 info->mod, info->map);
1420 if (entry->query == SQS_QUERIED)
1422 if(!serverlist_paused)
1423 ServerList_ViewList_Remove(entry);
1425 // if not in the slist menu we should print the server to console (if wanted)
1426 else if( serverlist_consoleoutput )
1427 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1428 // and finally, update the view set
1429 if(!serverlist_paused)
1430 ServerList_ViewList_Insert( entry );
1431 // update the entry's state
1432 serverlist_cache[n].query = SQS_QUERIED;
1435 // returns true, if it's sensible to continue the processing
1436 static qboolean NetConn_ClientParsePacket_ServerList_PrepareQuery( int protocol, const char *ipstring, qboolean isfavorite ) {
1438 serverlist_entry_t *entry;
1440 // ignore the rest of the message if the serverlist is full
1441 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1443 // also ignore it if we have already queried it (other master server response)
1444 for( n = 0 ; n < serverlist_cachecount ; n++ )
1445 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1448 entry = &serverlist_cache[n];
1450 if( n < serverlist_cachecount ) {
1451 // the entry has already been queried once or
1455 memset(entry, 0, sizeof(entry));
1456 entry->protocol = protocol;
1457 // store the data the engine cares about (address and ping)
1458 strlcpy (entry->info.cname, ipstring, sizeof(entry->info.cname));
1460 entry->info.isfavorite = isfavorite;
1462 // no, then reset the ping right away
1463 entry->info.ping = -1;
1464 // we also want to increase the serverlist_cachecount then
1465 serverlist_cachecount++;
1468 entry->query = SQS_QUERYING;
1473 static void NetConn_ClientParsePacket_ServerList_ParseDPList(lhnetaddress_t *senderaddress, const unsigned char *data, int length, qboolean isextended)
1476 if (serverlist_consoleoutput)
1477 Con_Printf("received DarkPlaces %sserver list...\n", isextended ? "extended " : "");
1480 char ipstring [128];
1483 if (data[0] == '\\')
1485 unsigned short port = data[5] * 256 + data[6];
1487 if (port != 0 && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF))
1488 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%hu", data[1], data[2], data[3], data[4], port);
1490 // move on to next address in packet
1495 else if (data[0] == '/' && isextended && length >= 19)
1497 unsigned short port = data[17] * 256 + data[18];
1503 /// \TODO: make some basic checks of the IP address (broadcast, ...)
1505 ifname = LHNETADDRESS_GetInterfaceName(senderaddress);
1508 dpsnprintf (ipstring, sizeof (ipstring), "[%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x%%%s]:%hu",
1509 data[1], data[2], data[3], data[4], data[5], data[6], data[7], data[8],
1510 data[9], data[10], data[11], data[12], data[13], data[14], data[15], data[16],
1515 dpsnprintf (ipstring, sizeof (ipstring), "[%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x:%x%02x]:%hu",
1516 data[1], data[2], data[3], data[4], data[5], data[6], data[7], data[8],
1517 data[9], data[10], data[11], data[12], data[13], data[14], data[15], data[16],
1522 // move on to next address in packet
1528 Con_Print("Error while parsing the server list\n");
1532 if (serverlist_consoleoutput && developer_networking.integer)
1533 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1535 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, ipstring, false ) ) {
1541 // begin or resume serverlist queries
1542 serverlist_querysleep = false;
1543 serverlist_querywaittime = realtime + 3;
1546 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1548 qboolean fromserver;
1549 int ret, c, control;
1551 char *string, addressstring2[128], ipstring[32];
1552 char stringbuf[16384];
1554 // quakeworld ingame packet
1555 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1557 // convert the address to a string incase we need it
1558 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1560 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1562 // received a command string - strip off the packaging and put it
1563 // into our string buffer with NULL termination
1566 length = min(length, (int)sizeof(stringbuf) - 1);
1567 memcpy(stringbuf, data, length);
1568 stringbuf[length] = 0;
1571 if (developer_networking.integer)
1573 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1574 Com_HexDumpToConsole(data, length);
1577 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.rcon_trying)
1580 for (j = 0;j < MAX_RCONS;j++)
1582 i = (cls.rcon_ringpos + j) % MAX_RCONS;
1583 if(cls.rcon_commands[i][0])
1584 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[i]))
1591 dpsnprintf(argbuf, sizeof(argbuf), "%s %s", string + 10, cls.rcon_commands[i]);
1592 memcpy(buf, "\377\377\377\377srcon HMAC-MD4 CHALLENGE ", 29);
1593 if(HMAC_MDFOUR_16BYTES((unsigned char *) (buf + 29), (unsigned char *) argbuf, strlen(argbuf), (unsigned char *) rcon_password.string, strlen(rcon_password.string)))
1596 strlcpy(buf + 46, argbuf, sizeof(buf) - 46);
1597 NetConn_Write(mysocket, buf, 46 + strlen(buf + 46), peeraddress);
1598 cls.rcon_commands[i][0] = 0;
1601 for (i = 0;i < MAX_RCONS;i++)
1602 if(cls.rcon_commands[i][0])
1603 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[i]))
1607 NetConn_WriteString(mysocket, "\377\377\377\377getchallenge", peeraddress);
1608 // extend the timeout on other requests as we asked for a challenge
1609 for (i = 0;i < MAX_RCONS;i++)
1610 if(cls.rcon_commands[i][0])
1611 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[i]))
1612 cls.rcon_timeout[i] = realtime + rcon_secure_challengetimeout.value;
1615 return true; // we used up the challenge, so we can't use this oen for connecting now anyway
1619 if (length > 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1621 // darkplaces or quake3
1622 char protocolnames[1400];
1623 Protocol_Names(protocolnames, sizeof(protocolnames));
1624 Con_Printf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1625 M_Update_Return_Reason("Got challenge response");
1626 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1627 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1628 // TODO: add userinfo stuff here instead of using NQ commands?
1629 NetConn_WriteString(mysocket, va("\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s\\challenge\\%s", protocolnames, string + 10), peeraddress);
1632 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1634 // darkplaces or quake3
1635 M_Update_Return_Reason("Accepted");
1636 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1639 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1641 char rejectreason[32];
1642 cls.connect_trying = false;
1644 length = min(length - 7, (int)sizeof(rejectreason) - 1);
1645 memcpy(rejectreason, string, length);
1646 rejectreason[length] = 0;
1647 M_Update_Return_Reason(rejectreason);
1650 if (length >= 15 && !memcmp(string, "statusResponse\x0A", 15))
1652 serverlist_info_t *info;
1657 // search the cache for this server and update it
1658 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1662 info = &serverlist_cache[n].info;
1667 info->qcstatus[0] = 0;
1668 info->players[0] = 0;
1669 info->protocol = -1;
1670 info->numplayers = 0;
1672 info->maxplayers = 0;
1673 info->gameversion = 0;
1675 p = strchr(string, '\n');
1678 *p = 0; // cut off the string there
1682 Con_Printf("statusResponse without players block?\n");
1684 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1685 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1686 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1687 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1688 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1689 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1690 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1691 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1692 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1693 if ((s = SearchInfostring(string, "qcstatus" )) != NULL) strlcpy(info->qcstatus, s, sizeof(info->qcstatus));
1694 if (p != NULL) strlcpy(info->players, p, sizeof(info->players));
1695 info->numhumans = info->numplayers - max(0, info->numbots);
1696 info->freeslots = info->maxplayers - info->numplayers;
1698 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1702 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1704 serverlist_info_t *info;
1708 // search the cache for this server and update it
1709 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1713 info = &serverlist_cache[n].info;
1718 info->qcstatus[0] = 0;
1719 info->players[0] = 0;
1720 info->protocol = -1;
1721 info->numplayers = 0;
1723 info->maxplayers = 0;
1724 info->gameversion = 0;
1726 if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));
1727 if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1728 if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1729 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));
1730 if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);
1731 if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);
1732 if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s);
1733 if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);
1734 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);
1735 if ((s = SearchInfostring(string, "qcstatus" )) != NULL) strlcpy(info->qcstatus, s, sizeof(info->qcstatus));
1736 info->numhumans = info->numplayers - max(0, info->numbots);
1737 info->freeslots = info->maxplayers - info->numplayers;
1739 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1743 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1745 // Extract the IP addresses
1748 NetConn_ClientParsePacket_ServerList_ParseDPList(peeraddress, data, length, false);
1751 if (!strncmp(string, "getserversExtResponse", 21) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1753 // Extract the IP addresses
1756 NetConn_ClientParsePacket_ServerList_ParseDPList(peeraddress, data, length, true);
1759 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
1761 // Extract the IP addresses
1765 if (serverlist_consoleoutput)
1766 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
1767 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
1769 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
1770 if (serverlist_consoleoutput && developer_networking.integer)
1771 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
1773 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, ipstring, false ) ) {
1777 // move on to next address in packet
1781 // begin or resume serverlist queries
1782 serverlist_querysleep = false;
1783 serverlist_querywaittime = realtime + 3;
1786 if (!strncmp(string, "extResponse ", 12))
1788 ++net_extresponse_count;
1789 if(net_extresponse_count > NET_EXTRESPONSE_MAX)
1790 net_extresponse_count = NET_EXTRESPONSE_MAX;
1791 net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
1792 dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
1795 if (!strncmp(string, "ping", 4))
1797 if (developer.integer >= 10)
1798 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
1799 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
1802 if (!strncmp(string, "ack", 3))
1804 // QuakeWorld compatibility
1805 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
1807 // challenge message
1808 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
1809 M_Update_Return_Reason("Got QuakeWorld challenge response");
1810 cls.qw_qport = qport.integer;
1811 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1812 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1813 NetConn_WriteString(mysocket, va("\377\377\377\377connect %i %i %i \"%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo), peeraddress);
1816 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
1819 M_Update_Return_Reason("QuakeWorld Accepted");
1820 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
1823 if (length > 2 && !memcmp(string, "n\\", 2))
1825 serverlist_info_t *info;
1829 if (serverlist_consoleoutput && developer_networking.integer >= 2)
1830 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
1833 // search the cache for this server and update it
1834 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1838 info = &serverlist_cache[n].info;
1839 strlcpy(info->game, "QuakeWorld", sizeof(info->game));
1840 if ((s = SearchInfostring(string, "*gamedir" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
1841 if ((s = SearchInfostring(string, "map" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
1842 if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
1844 info->numplayers = 0; // updated below
1845 info->numhumans = 0; // updated below
1846 if ((s = SearchInfostring(string, "maxclients" )) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
1847 if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
1849 // count active players on server
1850 // (we could gather more info, but we're just after the number)
1851 s = strchr(string, '\n');
1855 while (s < string + length)
1857 for (;s < string + length && *s != '\n';s++)
1859 if (s >= string + length)
1867 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1871 if (string[0] == 'n')
1874 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
1876 // we may not have liked the packet, but it was a command packet, so
1877 // we're done processing this packet now
1880 // quakeworld ingame packet
1881 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1884 CL_ParseServerMessage();
1887 // netquake control packets, supported for compatibility only
1888 if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length)
1891 serverlist_info_t *info;
1895 SZ_Clear(&net_message);
1896 SZ_Write(&net_message, data, length);
1902 if (developer.integer >= 10)
1903 Con_Printf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
1904 if (cls.connect_trying)
1906 lhnetaddress_t clientportaddress;
1907 clientportaddress = *peeraddress;
1908 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
1909 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1910 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1911 M_Update_Return_Reason("Accepted");
1912 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
1916 if (developer.integer >= 10)
1917 Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
1918 cls.connect_trying = false;
1919 M_Update_Return_Reason((char *)MSG_ReadString());
1921 case CCREP_SERVER_INFO:
1922 if (developer.integer >= 10)
1923 Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
1924 // LordHavoc: because the quake server may report weird addresses
1925 // we just ignore it and keep the real address
1927 // search the cache for this server and update it
1928 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1932 info = &serverlist_cache[n].info;
1933 strlcpy(info->game, "Quake", sizeof(info->game));
1934 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
1935 strlcpy(info->name, MSG_ReadString(), sizeof(info->name));
1936 strlcpy(info->map , MSG_ReadString(), sizeof(info->map));
1937 info->numplayers = MSG_ReadByte();
1938 info->maxplayers = MSG_ReadByte();
1939 info->protocol = MSG_ReadByte();
1941 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1944 case CCREP_RCON: // RocketGuy: ProQuake rcon support
1945 if (developer.integer >= 10)
1946 Con_Printf("Datagram_ParseConnectionless: received CCREP_RCON from %s.\n", addressstring2);
1948 Con_Printf("%s\n", MSG_ReadString());
1950 case CCREP_PLAYER_INFO:
1951 // we got a CCREP_PLAYER_INFO??
1952 //if (developer.integer >= 10)
1953 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
1955 case CCREP_RULE_INFO:
1956 // we got a CCREP_RULE_INFO??
1957 //if (developer.integer >= 10)
1958 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
1963 SZ_Clear(&net_message);
1964 // we may not have liked the packet, but it was a valid control
1965 // packet, so we're done processing this packet now
1969 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
1970 CL_ParseServerMessage();
1974 void NetConn_QueryQueueFrame(void)
1980 static double querycounter = 0;
1982 if(!net_slist_pause.integer && serverlist_paused)
1983 ServerList_RebuildViewList();
1984 serverlist_paused = net_slist_pause.integer != 0;
1986 if (serverlist_querysleep)
1989 // apply a cool down time after master server replies,
1990 // to avoid messing up the ping times on the servers
1991 if (serverlist_querywaittime > realtime)
1994 // each time querycounter reaches 1.0 issue a query
1995 querycounter += cl.realframetime * net_slist_queriespersecond.value;
1996 maxqueries = (int)querycounter;
1997 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
1998 querycounter -= maxqueries;
2000 if( maxqueries == 0 ) {
2004 // scan serverlist and issue queries as needed
2005 serverlist_querysleep = true;
2007 timeouttime = realtime - net_slist_timeout.value;
2008 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
2010 serverlist_entry_t *entry = &serverlist_cache[ index ];
2011 if( entry->query != SQS_QUERYING && entry->query != SQS_REFRESHING )
2016 serverlist_querysleep = false;
2017 if( entry->querycounter != 0 && entry->querytime > timeouttime )
2022 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
2024 lhnetaddress_t address;
2027 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
2028 if (entry->protocol == PROTOCOL_QUAKEWORLD)
2030 for (socket = 0; socket < cl_numsockets ; socket++)
2031 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
2035 for (socket = 0; socket < cl_numsockets ; socket++)
2036 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getstatus", &address);
2039 // update the entry fields
2040 entry->querytime = realtime;
2041 entry->querycounter++;
2043 // if not in the slist menu we should print the server to console
2044 if (serverlist_consoleoutput)
2045 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
2051 // have we tried to refresh this server?
2052 if( entry->query == SQS_REFRESHING ) {
2053 // yes, so update the reply count (since its not responding anymore)
2055 if(!serverlist_paused)
2056 ServerList_ViewList_Remove(entry);
2058 entry->query = SQS_TIMEDOUT;
2063 void NetConn_ClientFrame(void)
2066 lhnetaddress_t peeraddress;
2067 NetConn_UpdateSockets();
2068 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
2070 if (cls.connect_remainingtries == 0)
2071 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
2072 cls.connect_nextsendtime = realtime + 1;
2073 cls.connect_remainingtries--;
2074 if (cls.connect_remainingtries <= -10)
2076 cls.connect_trying = false;
2077 M_Update_Return_Reason("Connect: Failed");
2080 // try challenge first (newer DP server or QW)
2081 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
2082 // then try netquake as a fallback (old server, or netquake)
2083 SZ_Clear(&net_message);
2084 // save space for the header, filled in later
2085 MSG_WriteLong(&net_message, 0);
2086 MSG_WriteByte(&net_message, CCREQ_CONNECT);
2087 MSG_WriteString(&net_message, "QUAKE");
2088 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2089 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2090 NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
2091 SZ_Clear(&net_message);
2093 for (i = 0;i < cl_numsockets;i++)
2094 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2095 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
2096 NetConn_QueryQueueFrame();
2097 if (cls.netcon && realtime > cls.netcon->timeout && !sv.active)
2099 Con_Print("Connection timed out\n");
2101 Host_ShutdownServer ();
2105 #define MAX_CHALLENGES 128
2108 lhnetaddress_t address;
2112 challenge[MAX_CHALLENGES];
2114 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
2118 for (i = 0;i < bufferlength - 1;i++)
2122 c = rand () % (127 - 33) + 33;
2123 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
2129 /// (div0) build the full response only if possible; better a getinfo response than no response at all if getstatus won't fit
2130 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
2133 unsigned int nb_clients = 0, nb_bots = 0, i;
2139 // How many clients are there?
2140 for (i = 0;i < (unsigned int)svs.maxclients;i++)
2142 if (svs.clients[i].active)
2145 if (!svs.clients[i].netconnection)
2151 if(prog->globaloffsets.worldstatus >= 0)
2153 const char *str = PRVM_G_STRING(prog->globaloffsets.worldstatus);
2159 for(q = str; *q; ++q)
2160 if(*q != '\\' && *q != '\n')
2166 /// \TODO: we should add more information for the full status string
2167 length = dpsnprintf(out_msg, out_size,
2168 "\377\377\377\377%s\x0A"
2169 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
2170 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
2174 fullstatus ? "statusResponse" : "infoResponse",
2175 gamename, com_modname, gameversion.integer, svs.maxclients,
2176 nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION,
2177 *qcstatus ? "\\qcstatus\\" : "", qcstatus,
2178 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
2179 fullstatus ? "\n" : "");
2181 // Make sure it fits in the buffer
2191 savelength = length;
2193 ptr = out_msg + length;
2194 left = (int)out_size - length;
2196 for (i = 0;i < (unsigned int)svs.maxclients;i++)
2198 client_t *cl = &svs.clients[i];
2201 int nameind, cleanind, pingvalue;
2203 char cleanname [sizeof(cl->name)];
2205 // Remove all characters '"' and '\' in the player name
2210 curchar = cl->name[nameind++];
2211 if (curchar != '"' && curchar != '\\')
2213 cleanname[cleanind++] = curchar;
2214 if (cleanind == sizeof(cleanname) - 1)
2217 } while (curchar != '\0');
2218 cleanname[cleanind] = 0; // cleanind is always a valid index even at this point
2220 pingvalue = (int)(cl->ping * 1000.0f);
2221 if(cl->netconnection)
2222 pingvalue = bound(1, pingvalue, 9999);
2227 if(prog->fieldoffsets.clientstatus >= 0)
2229 const char *str = PRVM_E_STRING(PRVM_EDICT_NUM(i + 1), prog->fieldoffsets.clientstatus);
2235 for(q = str; *q && p != qcstatus + sizeof(qcstatus) - 1; ++q)
2236 if(*q != '\\' && *q != '"' && !ISWHITESPACE(*q))
2242 if ((gamemode == GAME_NEXUIZ) && (teamplay.integer > 0))
2244 if(cl->frags == -666) // spectator
2245 strlcpy(teambuf, " 0", sizeof(teambuf));
2246 else if(cl->colors == 0x44) // red team
2247 strlcpy(teambuf, " 1", sizeof(teambuf));
2248 else if(cl->colors == 0xDD) // blue team
2249 strlcpy(teambuf, " 2", sizeof(teambuf));
2250 else if(cl->colors == 0xCC) // yellow team
2251 strlcpy(teambuf, " 3", sizeof(teambuf));
2252 else if(cl->colors == 0x99) // pink team
2253 strlcpy(teambuf, " 4", sizeof(teambuf));
2255 strlcpy(teambuf, " 0", sizeof(teambuf));
2260 // note: team number is inserted according to SoF2 protocol
2262 length = dpsnprintf(ptr, left, "%s %d%s \"%s\"\n",
2268 length = dpsnprintf(ptr, left, "%d %d%s \"%s\"\n",
2277 // turn it into an infoResponse!
2278 out_msg[savelength] = 0;
2279 memcpy(out_msg + 4, "infoResponse\x0A", 13);
2280 memmove(out_msg + 17, out_msg + 19, savelength - 19);
2297 static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress)
2299 int floodslotnum, bestfloodslotnum;
2300 double bestfloodtime;
2301 lhnetaddress_t noportpeeraddress;
2302 // see if this is a connect flood
2303 noportpeeraddress = *peeraddress;
2304 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
2305 bestfloodslotnum = 0;
2306 bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime;
2307 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
2309 if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime)
2311 bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime;
2312 bestfloodslotnum = floodslotnum;
2314 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
2316 // this address matches an ongoing flood address
2317 if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value)
2319 // renew the ban on this address so it does not expire
2320 // until the flood has subsided
2321 sv.connectfloodaddresses[floodslotnum].lasttime = realtime;
2322 //Con_Printf("Flood detected!\n");
2325 // the flood appears to have subsided, so allow this
2326 bestfloodslotnum = floodslotnum; // reuse the same slot
2330 // begin a new timeout on this address
2331 sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress;
2332 sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime;
2333 //Con_Printf("Flood detection initiated!\n");
2337 void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress)
2340 lhnetaddress_t noportpeeraddress;
2341 // see if this is a connect flood
2342 noportpeeraddress = *peeraddress;
2343 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
2344 for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++)
2346 if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0)
2348 // this address matches an ongoing flood address
2350 sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
2351 sv.connectfloodaddresses[floodslotnum].lasttime = 0;
2352 //Con_Printf("Flood cleared!\n");
2357 typedef qboolean (*rcon_matchfunc_t) (lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen);
2359 qboolean hmac_mdfour_time_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2364 t1 = (long) time(NULL);
2365 t2 = strtol(s, NULL, 0);
2366 if(abs(t1 - t2) > rcon_secure_maxdiff.integer)
2369 if(!HMAC_MDFOUR_16BYTES((unsigned char *) mdfourbuf, (unsigned char *) s, slen, (unsigned char *) password, strlen(password)))
2372 return !memcmp(mdfourbuf, hash, 16);
2375 qboolean hmac_mdfour_challenge_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2380 if(slen < (int)(sizeof(challenge[0].string)) - 1)
2383 // validate the challenge
2384 for (i = 0;i < MAX_CHALLENGES;i++)
2385 if(challenge[i].time > 0)
2386 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strncmp(challenge[i].string, s, sizeof(challenge[0].string) - 1))
2388 // if the challenge is not recognized, drop the packet
2389 if (i == MAX_CHALLENGES)
2392 if(!HMAC_MDFOUR_16BYTES((unsigned char *) mdfourbuf, (unsigned char *) s, slen, (unsigned char *) password, strlen(password)))
2395 if(memcmp(mdfourbuf, hash, 16))
2398 // unmark challenge to prevent replay attacks
2399 challenge[i].time = 0;
2404 qboolean plaintext_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2406 return !strcmp(password, hash);
2409 /// returns a string describing the user level, or NULL for auth failure
2410 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)
2415 if(comparator(peeraddress, rcon_password.string, password, cs, cslen))
2418 if(!comparator(peeraddress, rcon_restricted_password.string, password, cs, cslen))
2421 for(text = s; text != endpos; ++text)
2422 if((signed char) *text > 0 && ((signed char) *text < (signed char) ' ' || *text == ';'))
2423 return NULL; // block possible exploits against the parser/alias expansion
2427 size_t l = strlen(s);
2430 hasquotes = (strchr(s, '"') != NULL);
2431 // sorry, we can't allow these substrings in wildcard expressions,
2432 // as they can mess with the argument counts
2433 text = rcon_restricted_commands.string;
2434 while(COM_ParseToken_Console(&text))
2436 // com_token now contains a pattern to check for...
2437 if(strchr(com_token, '*') || strchr(com_token, '?')) // wildcard expression, * can only match a SINGLE argument
2440 if(matchpattern_with_separator(s, com_token, true, " ", true)) // note how we excluded tab, newline etc. above
2443 else if(strchr(com_token, ' ')) // multi-arg expression? must match in whole
2445 if(!strcmp(com_token, s))
2448 else // single-arg expression? must match the beginning of the command
2450 if(!strcmp(com_token, s))
2452 if(!memcmp(va("%s ", com_token), s, strlen(com_token) + 1))
2456 // if we got here, nothing matched!
2463 return "restricted rcon";
2466 void RCon_Execute(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, const char *addressstring2, const char *userlevel, const char *s, const char *endpos)
2470 // looks like a legitimate rcon command with the correct password
2471 const char *s_ptr = s;
2472 Con_Printf("server received %s command from %s: ", userlevel, host_client ? host_client->name : addressstring2);
2473 while(s_ptr != endpos)
2475 size_t l = strlen(s_ptr);
2477 Con_Printf(" %s;", s_ptr);
2482 if (!host_client || !host_client->netconnection || LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2483 Con_Rcon_Redirect_Init(mysocket, peeraddress);
2486 size_t l = strlen(s);
2489 client_t *host_client_save = host_client;
2490 Cmd_ExecuteString(s, src_command);
2491 host_client = host_client_save;
2492 // in case it is a command that changes host_client (like restart)
2496 Con_Rcon_Redirect_End();
2500 Con_Printf("server denied rcon access to %s\n", host_client ? host_client->name : addressstring2);
2504 extern void SV_SendServerinfo (client_t *client);
2505 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
2507 int i, ret, clientnum, best;
2510 char *s, *string, response[1400], addressstring2[128], stringbuf[16384];
2511 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
2516 // convert the address to a string incase we need it
2517 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
2519 // see if we can identify the sender as a local player
2520 // (this is necessary for rcon to send a reliable reply if the client is
2521 // actually on the server, not sending remotely)
2522 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2523 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
2525 if (i == svs.maxclients)
2528 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
2530 // received a command string - strip off the packaging and put it
2531 // into our string buffer with NULL termination
2534 length = min(length, (int)sizeof(stringbuf) - 1);
2535 memcpy(stringbuf, data, length);
2536 stringbuf[length] = 0;
2539 if (developer.integer >= 10)
2541 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
2542 Com_HexDumpToConsole(data, length);
2545 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2))
2547 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
2549 if(challenge[i].time > 0)
2550 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
2552 if (besttime > challenge[i].time)
2553 besttime = challenge[best = i].time;
2555 // if we did not find an exact match, choose the oldest and
2556 // update address and string
2557 if (i == MAX_CHALLENGES)
2560 challenge[i].address = *peeraddress;
2561 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
2563 challenge[i].time = realtime;
2564 // send the challenge
2565 NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress);
2568 if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2))
2573 if (!(s = SearchInfostring(string, "challenge")))
2575 // validate the challenge
2576 for (i = 0;i < MAX_CHALLENGES;i++)
2577 if(challenge[i].time > 0)
2578 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
2580 // if the challenge is not recognized, drop the packet
2581 if (i == MAX_CHALLENGES)
2584 // check engine protocol
2585 if(!(s = SearchInfostring(string, "protocol")) || strcmp(s, "darkplaces 3"))
2587 if (developer.integer >= 10)
2588 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
2589 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
2593 // see if this is a duplicate connection request or a disconnected
2594 // client who is rejoining to the same client slot
2595 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2597 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2599 // this is a known client...
2600 if (client->spawned)
2602 // client crashed and is coming back,
2603 // keep their stuff intact
2604 if (developer.integer >= 10)
2605 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
2606 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2608 SV_SendServerinfo(client);
2613 // client is still trying to connect,
2614 // so we send a duplicate reply
2615 if (developer.integer >= 10)
2616 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
2617 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2623 if (NetConn_PreventConnectFlood(peeraddress))
2626 // find an empty client slot for this new client
2627 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2630 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
2632 // allocated connection
2633 if (developer.integer >= 10)
2634 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
2635 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
2636 // now set up the client
2638 SV_ConnectClient(clientnum, conn);
2640 NetConn_Heartbeat(1);
2645 // no empty slots found - server is full
2646 if (developer.integer >= 10)
2647 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
2648 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
2652 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
2654 const char *challenge = NULL;
2656 // If there was a challenge in the getinfo message
2657 if (length > 8 && string[7] == ' ')
2658 challenge = string + 8;
2660 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
2662 if (developer.integer >= 10)
2663 Con_Printf("Sending reply to master %s - %s\n", addressstring2, response);
2664 NetConn_WriteString(mysocket, response, peeraddress);
2668 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
2670 const char *challenge = NULL;
2672 // If there was a challenge in the getinfo message
2673 if (length > 10 && string[9] == ' ')
2674 challenge = string + 10;
2676 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
2678 if (developer.integer >= 10)
2679 Con_Printf("Sending reply to client %s - %s\n", addressstring2, response);
2680 NetConn_WriteString(mysocket, response, peeraddress);
2684 if (length >= 37 && !memcmp(string, "srcon HMAC-MD4 TIME ", 20))
2686 char *password = string + 20;
2687 char *timeval = string + 37;
2688 char *s = strchr(timeval, ' ');
2689 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2690 const char *userlevel;
2692 if(rcon_secure.integer > 1)
2696 return true; // invalid packet
2699 userlevel = RCon_Authenticate(peeraddress, password, s, endpos, hmac_mdfour_time_matching, timeval, endpos - timeval - 1); // not including the appended \0 into the HMAC
2700 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos);
2703 if (length >= 42 && !memcmp(string, "srcon HMAC-MD4 CHALLENGE ", 25))
2705 char *password = string + 25;
2706 char *challenge = string + 42;
2707 char *s = strchr(challenge, ' ');
2708 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2709 const char *userlevel;
2711 return true; // invalid packet
2714 userlevel = RCon_Authenticate(peeraddress, password, s, endpos, hmac_mdfour_challenge_matching, challenge, endpos - challenge - 1); // not including the appended \0 into the HMAC
2715 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos);
2718 if (length >= 5 && !memcmp(string, "rcon ", 5))
2721 char *s = string + 5;
2722 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
2725 if(rcon_secure.integer > 0)
2728 for (i = 0;!ISWHITESPACE(*s);s++)
2729 if (i < (int)sizeof(password) - 1)
2731 if(ISWHITESPACE(*s) && s != endpos) // skip leading ugly space
2734 if (!ISWHITESPACE(password[0]))
2736 const char *userlevel = RCon_Authenticate(peeraddress, password, s, endpos, plaintext_matching, NULL, 0);
2737 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos);
2741 if (!strncmp(string, "ping", 4))
2743 if (developer.integer >= 10)
2744 Con_Printf("Received ping from %s, sending ack\n", addressstring2);
2745 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2748 if (!strncmp(string, "ack", 3))
2750 // we may not have liked the packet, but it was a command packet, so
2751 // we're done processing this packet now
2754 // netquake control packets, supported for compatibility only, and only
2755 // when running game protocols that are normally served via this connection
2757 // (this protects more modern protocols against being used for
2758 // Quake packet flood Denial Of Service attacks)
2759 if (length >= 5 && (i = BigLong(*((int *)data))) && (i & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (i & NETFLAG_LENGTH_MASK) == length && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3))
2763 const char *protocolname;
2766 SZ_Clear(&net_message);
2767 SZ_Write(&net_message, data, length);
2773 if (developer.integer >= 10)
2774 Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
2775 if(!islocal && sv_public.integer <= -2)
2778 protocolname = MSG_ReadString();
2779 protocolnumber = MSG_ReadByte();
2780 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
2782 if (developer.integer >= 10)
2783 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
2784 SZ_Clear(&net_message);
2785 // save space for the header, filled in later
2786 MSG_WriteLong(&net_message, 0);
2787 MSG_WriteByte(&net_message, CCREP_REJECT);
2788 MSG_WriteString(&net_message, "Incompatible version.\n");
2789 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2790 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2791 SZ_Clear(&net_message);
2795 // see if this connect request comes from a known client
2796 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2798 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
2800 // this is either a duplicate connection request
2801 // or coming back from a timeout
2802 // (if so, keep their stuff intact)
2805 if (developer.integer >= 10)
2806 Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
2807 SZ_Clear(&net_message);
2808 // save space for the header, filled in later
2809 MSG_WriteLong(&net_message, 0);
2810 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2811 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
2812 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2813 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2814 SZ_Clear(&net_message);
2816 // if client is already spawned, re-send the
2817 // serverinfo message as they'll need it to play
2818 if (client->spawned)
2821 SV_SendServerinfo(client);
2828 // this is a new client, check for connection flood
2829 if (NetConn_PreventConnectFlood(peeraddress))
2832 // find a slot for the new client
2833 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
2836 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
2838 // connect to the client
2839 // everything is allocated, just fill in the details
2840 strlcpy (conn->address, addressstring2, sizeof (conn->address));
2841 if (developer.integer >= 10)
2842 Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
2843 // send back the info about the server connection
2844 SZ_Clear(&net_message);
2845 // save space for the header, filled in later
2846 MSG_WriteLong(&net_message, 0);
2847 MSG_WriteByte(&net_message, CCREP_ACCEPT);
2848 MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
2849 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2850 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2851 SZ_Clear(&net_message);
2852 // now set up the client struct
2854 SV_ConnectClient(clientnum, conn);
2856 NetConn_Heartbeat(1);
2861 if (developer.integer >= 10)
2862 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
2863 // no room; try to let player know
2864 SZ_Clear(&net_message);
2865 // save space for the header, filled in later
2866 MSG_WriteLong(&net_message, 0);
2867 MSG_WriteByte(&net_message, CCREP_REJECT);
2868 MSG_WriteString(&net_message, "Server is full.\n");
2869 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2870 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2871 SZ_Clear(&net_message);
2873 case CCREQ_SERVER_INFO:
2874 if (developer.integer >= 10)
2875 Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
2876 if(!islocal && sv_public.integer <= -1)
2878 if (sv.active && !strcmp(MSG_ReadString(), "QUAKE"))
2881 char myaddressstring[128];
2882 if (developer.integer >= 10)
2883 Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
2884 SZ_Clear(&net_message);
2885 // save space for the header, filled in later
2886 MSG_WriteLong(&net_message, 0);
2887 MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
2888 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
2889 MSG_WriteString(&net_message, myaddressstring);
2890 MSG_WriteString(&net_message, hostname.string);
2891 MSG_WriteString(&net_message, sv.name);
2892 // How many clients are there?
2893 for (i = 0, numclients = 0;i < svs.maxclients;i++)
2894 if (svs.clients[i].active)
2896 MSG_WriteByte(&net_message, numclients);
2897 MSG_WriteByte(&net_message, svs.maxclients);
2898 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
2899 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2900 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2901 SZ_Clear(&net_message);
2904 case CCREQ_PLAYER_INFO:
2905 if (developer.integer >= 10)
2906 Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
2907 if(!islocal && sv_public.integer <= -1)
2911 int playerNumber, activeNumber, clientNumber;
2914 playerNumber = MSG_ReadByte();
2916 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
2917 if (client->active && ++activeNumber == playerNumber)
2919 if (clientNumber != svs.maxclients)
2921 SZ_Clear(&net_message);
2922 // save space for the header, filled in later
2923 MSG_WriteLong(&net_message, 0);
2924 MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
2925 MSG_WriteByte(&net_message, playerNumber);
2926 MSG_WriteString(&net_message, client->name);
2927 MSG_WriteLong(&net_message, client->colors);
2928 MSG_WriteLong(&net_message, client->frags);
2929 MSG_WriteLong(&net_message, (int)(realtime - client->connecttime));
2930 MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient");
2931 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2932 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2933 SZ_Clear(&net_message);
2937 case CCREQ_RULE_INFO:
2938 if (developer.integer >= 10)
2939 Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
2940 if(!islocal && sv_public.integer <= -1)
2947 // find the search start location
2948 prevCvarName = MSG_ReadString();
2949 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
2951 // send the response
2952 SZ_Clear(&net_message);
2953 // save space for the header, filled in later
2954 MSG_WriteLong(&net_message, 0);
2955 MSG_WriteByte(&net_message, CCREP_RULE_INFO);
2958 MSG_WriteString(&net_message, var->name);
2959 MSG_WriteString(&net_message, var->string);
2961 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
2962 NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress);
2963 SZ_Clear(&net_message);
2969 SZ_Clear(&net_message);
2970 // we may not have liked the packet, but it was a valid control
2971 // packet, so we're done processing this packet now
2976 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
2979 SV_ReadClientMessage();
2987 void NetConn_ServerFrame(void)
2990 lhnetaddress_t peeraddress;
2991 for (i = 0;i < sv_numsockets;i++)
2992 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2993 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
2994 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2996 // never timeout loopback connections
2997 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2999 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
3001 SV_DropClient(false);
3007 void NetConn_SleepMicroseconds(int microseconds)
3009 LHNET_SleepUntilPacket_Microseconds(microseconds);
3012 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
3016 lhnetaddress_t masteraddress;
3017 lhnetaddress_t broadcastaddress;
3020 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
3023 // 26000 is the default quake server port, servers on other ports will not
3025 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
3026 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
3030 for (i = 0;i < cl_numsockets;i++)
3034 const char *cmdname, *extraoptions;
3035 int af = LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i]));
3037 if(LHNETADDRESS_GetAddressType(&broadcastaddress) == af)
3039 // search LAN for Quake servers
3040 SZ_Clear(&net_message);
3041 // save space for the header, filled in later
3042 MSG_WriteLong(&net_message, 0);
3043 MSG_WriteByte(&net_message, CCREQ_SERVER_INFO);
3044 MSG_WriteString(&net_message, "QUAKE");
3045 MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
3046 *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
3047 NetConn_Write(cl_sockets[i], net_message.data, net_message.cursize, &broadcastaddress);
3048 SZ_Clear(&net_message);
3050 // search LAN for DarkPlaces servers
3051 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getstatus", &broadcastaddress);
3054 // build the getservers message to send to the dpmaster master servers
3055 if (LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == LHNETADDRESSTYPE_INET6)
3057 cmdname = "getserversExt";
3058 extraoptions = " ipv4 ipv6"; // ask for IPv4 and IPv6 servers
3062 cmdname = "getservers";
3065 dpsnprintf(request, sizeof(request), "\377\377\377\377%s %s %u empty full%s", cmdname, gamename, NET_PROTOCOL_VERSION, extraoptions);
3068 for (masternum = 0;sv_masters[masternum].name;masternum++)
3070 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == af)
3073 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
3077 // search favorite servers
3078 for(j = 0; j < nFavorites; ++j)
3080 if(LHNETADDRESS_GetAddressType(&favorites[j]) == af)
3082 if(LHNETADDRESS_ToString(&favorites[j], request, sizeof(request), true))
3083 NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, request, true );
3090 // only query QuakeWorld servers when the user wants to
3093 for (i = 0;i < cl_numsockets;i++)
3097 int af = LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i]));
3099 if(LHNETADDRESS_GetAddressType(&broadcastaddress) == af)
3101 // search LAN for QuakeWorld servers
3102 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
3104 // build the getservers message to send to the qwmaster master servers
3105 // note this has no -1 prefix, and the trailing nul byte is sent
3106 dpsnprintf(request, sizeof(request), "c\n");
3110 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
3112 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
3114 if (m_state != m_slist)
3116 char lookupstring[128];
3117 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
3118 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
3121 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
3125 // search favorite servers
3126 for(j = 0; j < nFavorites; ++j)
3128 if(LHNETADDRESS_GetAddressType(&favorites[j]) == af)
3130 if(LHNETADDRESS_ToString(&favorites[j], request, sizeof(request), true))
3132 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &favorites[j]);
3133 NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, request, true );
3140 if (!masterquerycount)
3142 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
3143 M_Update_Return_Reason("No network");
3147 void NetConn_Heartbeat(int priority)
3149 lhnetaddress_t masteraddress;
3151 lhnetsocket_t *mysocket;
3153 // if it's a state change (client connected), limit next heartbeat to no
3154 // more than 30 sec in the future
3155 if (priority == 1 && nextheartbeattime > realtime + 30.0)
3156 nextheartbeattime = realtime + 30.0;
3158 // limit heartbeatperiod to 30 to 270 second range,
3159 // lower limit is to avoid abusing master servers with excess traffic,
3160 // upper limit is to avoid timing out on the master server (which uses
3162 if (sv_heartbeatperiod.value < 30)
3163 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
3164 if (sv_heartbeatperiod.value > 270)
3165 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
3167 // make advertising optional and don't advertise singleplayer games, and
3168 // only send a heartbeat as often as the admin wants
3169 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
3171 nextheartbeattime = realtime + sv_heartbeatperiod.value;
3172 for (masternum = 0;sv_masters[masternum].name;masternum++)
3173 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
3174 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
3178 static void Net_Heartbeat_f(void)
3181 NetConn_Heartbeat(2);
3183 Con_Print("No server running, can not heartbeat to master server.\n");
3186 void PrintStats(netconn_t *conn)
3188 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
3189 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->outgoing_unreliable_sequence, conn->qw.incoming_sequence);
3191 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
3194 void Net_Stats_f(void)
3197 Con_Printf("unreliable messages sent = %i\n", unreliableMessagesSent);
3198 Con_Printf("unreliable messages recv = %i\n", unreliableMessagesReceived);
3199 Con_Printf("reliable messages sent = %i\n", reliableMessagesSent);
3200 Con_Printf("reliable messages received = %i\n", reliableMessagesReceived);
3201 Con_Printf("packetsSent = %i\n", packetsSent);
3202 Con_Printf("packetsReSent = %i\n", packetsReSent);
3203 Con_Printf("packetsReceived = %i\n", packetsReceived);
3204 Con_Printf("receivedDuplicateCount = %i\n", receivedDuplicateCount);
3205 Con_Printf("droppedDatagrams = %i\n", droppedDatagrams);
3206 Con_Print("connections =\n");
3207 for (conn = netconn_list;conn;conn = conn->next)
3211 void Net_Refresh_f(void)
3213 if (m_state != m_slist) {
3214 Con_Print("Sending new requests to master servers\n");
3215 ServerList_QueryList(false, true, false, true);
3216 Con_Print("Listening for replies...\n");
3218 ServerList_QueryList(false, true, false, false);
3221 void Net_Slist_f(void)
3223 ServerList_ResetMasks();
3224 serverlist_sortbyfield = SLIF_PING;
3225 serverlist_sortflags = 0;
3226 if (m_state != m_slist) {
3227 Con_Print("Sending requests to master servers\n");
3228 ServerList_QueryList(true, true, false, true);
3229 Con_Print("Listening for replies...\n");
3231 ServerList_QueryList(true, true, false, false);
3234 void Net_SlistQW_f(void)
3236 ServerList_ResetMasks();
3237 serverlist_sortbyfield = SLIF_PING;
3238 serverlist_sortflags = 0;
3239 if (m_state != m_slist) {
3240 Con_Print("Sending requests to master servers\n");
3241 ServerList_QueryList(true, false, true, true);
3242 serverlist_consoleoutput = true;
3243 Con_Print("Listening for replies...\n");
3245 ServerList_QueryList(true, false, true, false);
3248 void NetConn_Init(void)
3251 lhnetaddress_t tempaddress;
3252 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
3253 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
3254 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
3255 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
3256 Cmd_AddCommand("net_refresh", Net_Refresh_f, "query dp master servers and refresh all server information");
3257 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
3258 Cvar_RegisterVariable(&rcon_restricted_password);
3259 Cvar_RegisterVariable(&rcon_restricted_commands);
3260 Cvar_RegisterVariable(&rcon_secure_maxdiff);
3261 Cvar_RegisterVariable(&net_slist_queriespersecond);
3262 Cvar_RegisterVariable(&net_slist_queriesperframe);
3263 Cvar_RegisterVariable(&net_slist_timeout);
3264 Cvar_RegisterVariable(&net_slist_maxtries);
3265 Cvar_RegisterVariable(&net_slist_favorites);
3266 Cvar_RegisterVariable(&net_slist_pause);
3267 Cvar_RegisterVariable(&net_messagetimeout);
3268 Cvar_RegisterVariable(&net_connecttimeout);
3269 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
3270 Cvar_RegisterVariable(&cl_netlocalping);
3271 Cvar_RegisterVariable(&cl_netpacketloss_send);
3272 Cvar_RegisterVariable(&cl_netpacketloss_receive);
3273 Cvar_RegisterVariable(&hostname);
3274 Cvar_RegisterVariable(&developer_networking);
3275 Cvar_RegisterVariable(&cl_netport);
3276 Cvar_RegisterVariable(&sv_netport);
3277 Cvar_RegisterVariable(&net_address);
3278 Cvar_RegisterVariable(&net_address_ipv6);
3279 Cvar_RegisterVariable(&sv_public);
3280 Cvar_RegisterVariable(&sv_heartbeatperiod);
3281 for (i = 0;sv_masters[i].name;i++)
3282 Cvar_RegisterVariable(&sv_masters[i]);
3283 Cvar_RegisterVariable(&gameversion);
3284 Cvar_RegisterVariable(&gameversion_min);
3285 Cvar_RegisterVariable(&gameversion_max);
3286 // 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.
3287 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
3289 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
3291 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
3292 Cvar_SetQuick(&net_address, com_argv[i + 1]);
3295 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
3297 // 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
3298 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
3300 i = atoi(com_argv[i + 1]);
3301 if (i >= 0 && i < 65536)
3303 Con_Printf("-port option used, setting port cvar to %i\n", i);
3304 Cvar_SetValueQuick(&sv_netport, i);
3307 Con_Printf("-port option used, but %i is not a valid port number\n", i);
3311 net_message.data = net_message_buf;
3312 net_message.maxsize = sizeof(net_message_buf);
3313 net_message.cursize = 0;
3317 void NetConn_Shutdown(void)
3319 NetConn_CloseClientPorts();
3320 NetConn_CloseServerPorts();