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.
27 // for secure rcon authentication
32 #define QWMASTER_PORT 27000
33 #define DPMASTER_PORT 27950
35 // note this defaults on for dedicated servers, off for listen servers
36 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; -3: already block at getchallenge level"};
37 cvar_t sv_public_rejectreason = {0, "sv_public_rejectreason", "The server is closing.", "Rejection reason for connects when sv_public is -2"};
38 static cvar_t sv_heartbeatperiod = {CVAR_SAVE, "sv_heartbeatperiod", "120", "how often to send heartbeat in seconds (only used if sv_public is 1)"};
39 extern cvar_t sv_status_privacy;
41 static cvar_t sv_masters [] =
43 {CVAR_SAVE, "sv_master1", "", "user-chosen master server 1"},
44 {CVAR_SAVE, "sv_master2", "", "user-chosen master server 2"},
45 {CVAR_SAVE, "sv_master3", "", "user-chosen master server 3"},
46 {CVAR_SAVE, "sv_master4", "", "user-chosen master server 4"},
47 {0, "sv_masterextra1", "ghdigital.com", "ghdigital.com - default master server 1 (admin: LordHavoc)"}, // admin: LordHavoc
48 {0, "sv_masterextra2", "dpmaster.deathmask.net", "dpmaster.deathmask.net - default master server 2 (admin: Willis)"}, // admin: Willis
49 {0, "sv_masterextra3", "dpmaster.tchr.no", "dpmaster.tchr.no - default master server 3 (admin: tChr)"}, // admin: tChr
54 static cvar_t sv_qwmasters [] =
56 {CVAR_SAVE, "sv_qwmaster1", "", "user-chosen qwmaster server 1"},
57 {CVAR_SAVE, "sv_qwmaster2", "", "user-chosen qwmaster server 2"},
58 {CVAR_SAVE, "sv_qwmaster3", "", "user-chosen qwmaster server 3"},
59 {CVAR_SAVE, "sv_qwmaster4", "", "user-chosen qwmaster server 4"},
60 {0, "sv_qwmasterextra1", "master.quakeservers.net:27000", "Global master server. (admin: unknown)"},
61 {0, "sv_qwmasterextra2", "asgaard.morphos-team.net:27000", "Global master server. (admin: unknown)"},
62 {0, "sv_qwmasterextra3", "qwmaster.ocrana.de:27000", "German master server. (admin: unknown)"},
63 {0, "sv_qwmasterextra4", "qwmaster.fodquake.net:27000", "Global master server. (admin: unknown)"},
68 static double nextheartbeattime = 0;
72 static unsigned char cl_message_buf[NET_MAXMESSAGE];
73 static unsigned char sv_message_buf[NET_MAXMESSAGE];
74 char cl_readstring[MAX_INPUTLINE];
75 char sv_readstring[MAX_INPUTLINE];
77 cvar_t net_test = {0, "net_test", "0", "internal development use only, leave it alone (usually does nothing anyway)"};
78 cvar_t net_usesizelimit = {0, "net_usesizelimit", "2", "use packet size limiting (0: never, 1: in non-CSQC mode, 2: always)"};
79 cvar_t net_burstreserve = {0, "net_burstreserve", "0.3", "how much of the burst time to reserve for packet size spikes"};
80 cvar_t net_messagetimeout = {0, "net_messagetimeout","300", "drops players who have not sent any packets for this many seconds"};
81 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."};
82 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). Note that this does not include retries from the same IP; these are handled earlier and let in."};
83 cvar_t net_challengefloodblockingtimeout = {0, "net_challengefloodblockingtimeout", "0.5", "when a challenge packet is received, it will block all future challenge packets from that IP address for this many seconds (cuts down on challenge floods). DarkPlaces clients retry once per second, so this should be <= 1. Failure here may lead to connect attempts failing."};
84 cvar_t net_getstatusfloodblockingtimeout = {0, "net_getstatusfloodblockingtimeout", "1", "when a getstatus packet is received, it will block all future getstatus packets from that IP address for this many seconds (cuts down on getstatus floods). DarkPlaces retries every 4 seconds, and qstat retries once per second, so this should be <= 1. Failure here may lead to server not showing up in the server list."};
85 cvar_t hostname = {CVAR_SAVE, "hostname", "UNNAMED", "server message to show in server browser"};
86 cvar_t developer_networking = {0, "developer_networking", "0", "prints all received and sent packets (recommended only for debugging)"};
88 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)"};
89 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)"};
90 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)"};
91 static cvar_t net_slist_queriespersecond = {0, "net_slist_queriespersecond", "20", "how many server information requests to send per second"};
92 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)"};
93 static cvar_t net_slist_timeout = {0, "net_slist_timeout", "4", "how long to listen for a server information response before giving up"};
94 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"};
95 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)"};
96 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"};
97 static cvar_t net_tos_dscp = {CVAR_SAVE, "net_tos_dscp", "32", "DiffServ Codepoint for network sockets (may need game restart to apply)"};
98 static cvar_t gameversion = {0, "gameversion", "0", "version of game data (mod-specific) to be sent to querying clients"};
99 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"};
100 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"};
101 static cvar_t rcon_restricted_password = {CVAR_PRIVATE, "rcon_restricted_password", "", "password to authenticate rcon commands in restricted mode; may be set to a string of the form user1:pass1 user2:pass2 user3:pass3 to allow multiple user accounts - the client then has to specify ONE of these combinations"};
102 static cvar_t rcon_restricted_commands = {0, "rcon_restricted_commands", "", "allowed commands for rcon when the restricted mode password was used"};
103 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)"};
104 extern cvar_t rcon_secure;
105 extern cvar_t rcon_secure_challengetimeout;
107 double masterquerytime = -1000;
108 int masterquerycount = 0;
109 int masterreplycount = 0;
110 int serverquerycount = 0;
111 int serverreplycount = 0;
113 challenge_t challenge[MAX_CHALLENGES];
116 /// this is only false if there are still servers left to query
117 static qboolean serverlist_querysleep = true;
118 static qboolean serverlist_paused = false;
119 /// this is pushed a second or two ahead of realtime whenever a master server
120 /// reply is received, to avoid issuing queries while master replies are still
121 /// flooding in (which would make a mess of the ping times)
122 static double serverlist_querywaittime = 0;
125 static int cl_numsockets;
126 static lhnetsocket_t *cl_sockets[16];
127 static int sv_numsockets;
128 static lhnetsocket_t *sv_sockets[16];
130 netconn_t *netconn_list = NULL;
131 mempool_t *netconn_mempool = NULL;
132 void *netconn_mutex = NULL;
134 cvar_t cl_netport = {0, "cl_port", "0", "forces client to use chosen port number if not 0"};
135 cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to"};
136 cvar_t net_address = {0, "net_address", "", "network address to open ipv4 ports on (if empty, use default interfaces)"};
137 cvar_t net_address_ipv6 = {0, "net_address_ipv6", "", "network address to open ipv6 ports on (if empty, use default interfaces)"};
139 char cl_net_extresponse[NET_EXTRESPONSE_MAX][1400];
140 int cl_net_extresponse_count = 0;
141 int cl_net_extresponse_last = 0;
143 char sv_net_extresponse[NET_EXTRESPONSE_MAX][1400];
144 int sv_net_extresponse_count = 0;
145 int sv_net_extresponse_last = 0;
148 // ServerList interface
149 serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT];
150 serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT];
152 serverlist_infofield_t serverlist_sortbyfield;
153 int serverlist_sortflags;
155 int serverlist_viewcount = 0;
156 unsigned short serverlist_viewlist[SERVERLIST_VIEWLISTSIZE];
158 int serverlist_maxcachecount = 0;
159 int serverlist_cachecount = 0;
160 serverlist_entry_t *serverlist_cache = NULL;
162 qboolean serverlist_consoleoutput;
164 static int nFavorites = 0;
165 static lhnetaddress_t favorites[MAX_FAVORITESERVERS];
166 static int nFavorites_idfp = 0;
167 static char favorites_idfp[MAX_FAVORITESERVERS][FP64_SIZE+1];
169 void NetConn_UpdateFavorites(void)
174 p = net_slist_favorites.string;
175 while((size_t) nFavorites < sizeof(favorites) / sizeof(*favorites) && COM_ParseToken_Console(&p))
177 if(com_token[0] != '[' && strlen(com_token) == FP64_SIZE && !strchr(com_token, '.'))
178 // currently 44 bytes, longest possible IPv6 address: 39 bytes, so this works
179 // (if v6 address contains port, it must start with '[')
181 strlcpy(favorites_idfp[nFavorites_idfp], com_token, sizeof(favorites_idfp[nFavorites_idfp]));
186 if(LHNETADDRESS_FromString(&favorites[nFavorites], com_token, 26000))
192 /// helper function to insert a value into the viewset
193 /// spare entries will be removed
194 static void _ServerList_ViewList_Helper_InsertBefore( int index, serverlist_entry_t *entry )
197 if( serverlist_viewcount < SERVERLIST_VIEWLISTSIZE ) {
198 i = serverlist_viewcount++;
200 i = SERVERLIST_VIEWLISTSIZE - 1;
203 for( ; i > index ; i-- )
204 serverlist_viewlist[ i ] = serverlist_viewlist[ i - 1 ];
206 serverlist_viewlist[index] = (int)(entry - serverlist_cache);
209 /// we suppose serverlist_viewcount to be valid, ie > 0
210 static void _ServerList_ViewList_Helper_Remove( int index )
212 serverlist_viewcount--;
213 for( ; index < serverlist_viewcount ; index++ )
214 serverlist_viewlist[index] = serverlist_viewlist[index + 1];
217 /// \returns true if A should be inserted before B
218 static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_entry_t *B )
220 int result = 0; // > 0 if for numbers A > B and for text if A < B
222 if( serverlist_sortflags & SLSF_CATEGORIES )
224 result = A->info.category - B->info.category;
229 if( serverlist_sortflags & SLSF_FAVORITES )
231 if(A->info.isfavorite != B->info.isfavorite)
232 return A->info.isfavorite;
235 switch( serverlist_sortbyfield ) {
237 result = A->info.ping - B->info.ping;
239 case SLIF_MAXPLAYERS:
240 result = A->info.maxplayers - B->info.maxplayers;
242 case SLIF_NUMPLAYERS:
243 result = A->info.numplayers - B->info.numplayers;
246 result = A->info.numbots - B->info.numbots;
249 result = A->info.numhumans - B->info.numhumans;
252 result = A->info.freeslots - B->info.freeslots;
255 result = A->info.protocol - B->info.protocol;
258 result = strcmp( B->info.cname, A->info.cname );
261 result = strcasecmp( B->info.game, A->info.game );
264 result = strcasecmp( B->info.map, A->info.map );
267 result = strcasecmp( B->info.mod, A->info.mod );
270 result = strcasecmp( B->info.name, A->info.name );
273 result = strcasecmp( B->info.qcstatus, A->info.qcstatus ); // not really THAT useful, though
276 result = A->info.category - B->info.category;
278 case SLIF_ISFAVORITE:
279 result = !!B->info.isfavorite - !!A->info.isfavorite;
282 Con_DPrint( "_ServerList_Entry_Compare: Bad serverlist_sortbyfield!\n" );
288 if( serverlist_sortflags & SLSF_DESCENDING )
294 // if the chosen sort key is identical, sort by index
295 // (makes this a stable sort, so that later replies from servers won't
296 // shuffle the servers around when they have the same ping)
300 static qboolean _ServerList_CompareInt( int A, serverlist_maskop_t op, int B )
302 // This should actually be done with some intermediate and end-of-function return
314 case SLMO_GREATEREQUAL:
316 case SLMO_NOTCONTAIN:
317 case SLMO_STARTSWITH:
318 case SLMO_NOTSTARTSWITH:
321 Con_DPrint( "_ServerList_CompareInt: Bad op!\n" );
326 static qboolean _ServerList_CompareStr( const char *A, serverlist_maskop_t op, const char *B )
329 char bufferA[ 1400 ], bufferB[ 1400 ]; // should be more than enough
330 COM_StringDecolorize(A, 0, bufferA, sizeof(bufferA), false);
331 for (i = 0;i < (int)sizeof(bufferA)-1 && bufferA[i];i++)
332 bufferA[i] = (bufferA[i] >= 'A' && bufferA[i] <= 'Z') ? (bufferA[i] + 'a' - 'A') : bufferA[i];
334 for (i = 0;i < (int)sizeof(bufferB)-1 && B[i];i++)
335 bufferB[i] = (B[i] >= 'A' && B[i] <= 'Z') ? (B[i] + 'a' - 'A') : B[i];
338 // Same here, also using an intermediate & final return would be more appropriate
342 return *bufferB && !!strstr( bufferA, bufferB ); // we want a real bool
343 case SLMO_NOTCONTAIN:
344 return !*bufferB || !strstr( bufferA, bufferB );
345 case SLMO_STARTSWITH:
346 //Con_Printf("startsWith: %s %s\n", bufferA, bufferB);
347 return *bufferB && !memcmp(bufferA, bufferB, strlen(bufferB));
348 case SLMO_NOTSTARTSWITH:
349 return !*bufferB || memcmp(bufferA, bufferB, strlen(bufferB));
351 return strcmp( bufferA, bufferB ) < 0;
353 return strcmp( bufferA, bufferB ) <= 0;
355 return strcmp( bufferA, bufferB ) == 0;
357 return strcmp( bufferA, bufferB ) > 0;
359 return strcmp( bufferA, bufferB ) != 0;
360 case SLMO_GREATEREQUAL:
361 return strcmp( bufferA, bufferB ) >= 0;
363 Con_DPrint( "_ServerList_CompareStr: Bad op!\n" );
368 static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info_t *info )
370 if( !_ServerList_CompareInt( info->ping, mask->tests[SLIF_PING], mask->info.ping ) )
372 if( !_ServerList_CompareInt( info->maxplayers, mask->tests[SLIF_MAXPLAYERS], mask->info.maxplayers ) )
374 if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) )
376 if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) )
378 if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) )
380 if( !_ServerList_CompareInt( info->freeslots, mask->tests[SLIF_FREESLOTS], mask->info.freeslots ) )
382 if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol ))
384 if( *mask->info.cname
385 && !_ServerList_CompareStr( info->cname, mask->tests[SLIF_CNAME], mask->info.cname ) )
388 && !_ServerList_CompareStr( info->game, mask->tests[SLIF_GAME], mask->info.game ) )
391 && !_ServerList_CompareStr( info->mod, mask->tests[SLIF_MOD], mask->info.mod ) )
394 && !_ServerList_CompareStr( info->map, mask->tests[SLIF_MAP], mask->info.map ) )
397 && !_ServerList_CompareStr( info->name, mask->tests[SLIF_NAME], mask->info.name ) )
399 if( *mask->info.qcstatus
400 && !_ServerList_CompareStr( info->qcstatus, mask->tests[SLIF_QCSTATUS], mask->info.qcstatus ) )
402 if( *mask->info.players
403 && !_ServerList_CompareStr( info->players, mask->tests[SLIF_PLAYERS], mask->info.players ) )
405 if( !_ServerList_CompareInt( info->category, mask->tests[SLIF_CATEGORY], mask->info.category ) )
407 if( !_ServerList_CompareInt( info->isfavorite, mask->tests[SLIF_ISFAVORITE], mask->info.isfavorite ))
412 static void ServerList_ViewList_Insert( serverlist_entry_t *entry )
414 int start, end, mid, i;
417 // reject incompatible servers
419 entry->info.gameversion != gameversion.integer
422 gameversion_min.integer >= 0 // min/max range set by user/mod?
423 && gameversion_max.integer >= 0
424 && gameversion_min.integer <= entry->info.gameversion // version of server in min/max range?
425 && gameversion_max.integer >= entry->info.gameversion
430 // refresh the "favorite" status
431 entry->info.isfavorite = false;
432 if(LHNETADDRESS_FromString(&addr, entry->info.cname, 26000))
434 char idfp[FP64_SIZE+1];
435 for(i = 0; i < nFavorites; ++i)
437 if(LHNETADDRESS_Compare(&addr, &favorites[i]) == 0)
439 entry->info.isfavorite = true;
443 if(Crypto_RetrieveHostKey(&addr, 0, NULL, 0, idfp, sizeof(idfp), NULL, NULL))
445 for(i = 0; i < nFavorites_idfp; ++i)
447 if(!strcmp(idfp, favorites_idfp[i]))
449 entry->info.isfavorite = true;
456 // refresh the "category"
457 entry->info.category = MR_GetServerListEntryCategory(entry);
459 // FIXME: change this to be more readable (...)
460 // now check whether it passes through the masks
461 for( start = 0 ; start < SERVERLIST_ANDMASKCOUNT && serverlist_andmasks[start].active; start++ )
462 if( !_ServerList_Entry_Mask( &serverlist_andmasks[start], &entry->info ) )
465 for( start = 0 ; start < SERVERLIST_ORMASKCOUNT && serverlist_ormasks[start].active ; start++ )
466 if( _ServerList_Entry_Mask( &serverlist_ormasks[start], &entry->info ) )
468 if( start == SERVERLIST_ORMASKCOUNT || (start > 0 && !serverlist_ormasks[start].active) )
471 if( !serverlist_viewcount ) {
472 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
475 // ok, insert it, we just need to find out where exactly:
478 // check whether to insert it as new first item
479 if( _ServerList_Entry_Compare( entry, ServerList_GetViewEntry(0) ) ) {
480 _ServerList_ViewList_Helper_InsertBefore( 0, entry );
482 } // check whether to insert it as new last item
483 else if( !_ServerList_Entry_Compare( entry, ServerList_GetViewEntry(serverlist_viewcount - 1) ) ) {
484 _ServerList_ViewList_Helper_InsertBefore( serverlist_viewcount, entry );
488 end = serverlist_viewcount - 1;
489 while( end > start + 1 )
491 mid = (start + end) / 2;
492 // test the item that lies in the middle between start and end
493 if( _ServerList_Entry_Compare( entry, ServerList_GetViewEntry(mid) ) )
494 // the item has to be in the upper half
497 // the item has to be in the lower half
500 _ServerList_ViewList_Helper_InsertBefore( start + 1, entry );
503 static void ServerList_ViewList_Remove( serverlist_entry_t *entry )
506 for( i = 0; i < serverlist_viewcount; i++ )
508 if (ServerList_GetViewEntry(i) == entry)
510 _ServerList_ViewList_Helper_Remove(i);
516 void ServerList_RebuildViewList(void)
520 serverlist_viewcount = 0;
521 for( i = 0 ; i < serverlist_cachecount ; i++ ) {
522 serverlist_entry_t *entry = &serverlist_cache[i];
523 // also display entries that are currently being refreshed [11/8/2007 Black]
524 if( entry->query == SQS_QUERIED || entry->query == SQS_REFRESHING )
525 ServerList_ViewList_Insert( entry );
529 void ServerList_ResetMasks(void)
533 memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) );
534 memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) );
535 // numbots needs to be compared to -1 to always succeed
536 for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i)
537 serverlist_andmasks[i].info.numbots = -1;
538 for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i)
539 serverlist_ormasks[i].info.numbots = -1;
542 void ServerList_GetPlayerStatistics(int *numplayerspointer, int *maxplayerspointer)
545 int numplayers = 0, maxplayers = 0;
546 for (i = 0;i < serverlist_cachecount;i++)
548 if (serverlist_cache[i].query == SQS_QUERIED)
550 numplayers += serverlist_cache[i].info.numhumans;
551 maxplayers += serverlist_cache[i].info.maxplayers;
554 *numplayerspointer = numplayers;
555 *maxplayerspointer = maxplayers;
559 static void _ServerList_Test(void)
562 if (serverlist_maxcachecount <= 1024)
564 serverlist_maxcachecount = 1024;
565 serverlist_cache = (serverlist_entry_t *)Mem_Realloc(netconn_mempool, (void *)serverlist_cache, sizeof(serverlist_entry_t) * serverlist_maxcachecount);
567 for( i = 0 ; i < 1024 ; i++ ) {
568 memset( &serverlist_cache[serverlist_cachecount], 0, sizeof( serverlist_entry_t ) );
569 serverlist_cache[serverlist_cachecount].info.ping = 1000 + 1024 - i;
570 dpsnprintf( serverlist_cache[serverlist_cachecount].info.name, sizeof(serverlist_cache[serverlist_cachecount].info.name), "Black's ServerList Test %i", i );
571 serverlist_cache[serverlist_cachecount].finished = true;
572 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 );
573 ServerList_ViewList_Insert( &serverlist_cache[serverlist_cachecount] );
574 serverlist_cachecount++;
579 void ServerList_QueryList(qboolean resetcache, qboolean querydp, qboolean queryqw, qboolean consoleoutput)
581 masterquerytime = realtime;
582 masterquerycount = 0;
583 masterreplycount = 0;
585 serverquerycount = 0;
586 serverreplycount = 0;
587 serverlist_cachecount = 0;
588 serverlist_viewcount = 0;
589 serverlist_maxcachecount = 0;
590 serverlist_cache = (serverlist_entry_t *)Mem_Realloc(netconn_mempool, (void *)serverlist_cache, sizeof(serverlist_entry_t) * serverlist_maxcachecount);
592 // refresh all entries
594 for( n = 0 ; n < serverlist_cachecount ; n++ ) {
595 serverlist_entry_t *entry = &serverlist_cache[ n ];
596 entry->query = SQS_REFRESHING;
597 entry->querycounter = 0;
600 serverlist_consoleoutput = consoleoutput;
602 //_ServerList_Test();
604 NetConn_QueryMasters(querydp, queryqw);
610 int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddress_t *peeraddress)
614 if (mysocket->address.addresstype == LHNETADDRESSTYPE_LOOP && netconn_mutex)
615 Thread_LockMutex(netconn_mutex);
616 length = LHNET_Read(mysocket, data, maxlength, peeraddress);
617 if (mysocket->address.addresstype == LHNETADDRESSTYPE_LOOP && netconn_mutex)
618 Thread_UnlockMutex(netconn_mutex);
621 if (cl_netpacketloss_receive.integer)
622 for (i = 0;i < cl_numsockets;i++)
623 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer)
625 if (developer_networking.integer)
627 char addressstring[128], addressstring2[128];
628 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
631 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
632 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i from %s:\n", (void *)mysocket, addressstring, (void *)data, maxlength, (void *)peeraddress, length, addressstring2);
633 Com_HexDumpToConsole((unsigned char *)data, length);
636 Con_Printf("LHNET_Read(%p (%s), %p, %i, %p) = %i\n", (void *)mysocket, addressstring, (void *)data, maxlength, (void *)peeraddress, length);
641 int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const lhnetaddress_t *peeraddress)
645 if (cl_netpacketloss_send.integer)
646 for (i = 0;i < cl_numsockets;i++)
647 if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer)
649 if (mysocket->address.addresstype == LHNETADDRESSTYPE_LOOP && netconn_mutex)
650 Thread_LockMutex(netconn_mutex);
651 ret = LHNET_Write(mysocket, data, length, peeraddress);
652 if (mysocket->address.addresstype == LHNETADDRESSTYPE_LOOP && netconn_mutex)
653 Thread_UnlockMutex(netconn_mutex);
654 if (developer_networking.integer)
656 char addressstring[128], addressstring2[128];
657 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), addressstring, sizeof(addressstring), true);
658 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
659 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)");
660 Com_HexDumpToConsole((unsigned char *)data, length);
665 int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnetaddress_t *peeraddress)
667 // note this does not include the trailing NULL because we add that in the parser
668 return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress);
671 qboolean NetConn_CanSend(netconn_t *conn)
673 conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS;
674 conn->outgoing_netgraph[conn->outgoing_packetcounter].time = realtime;
675 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_NOPACKET;
676 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
677 conn->outgoing_netgraph[conn->outgoing_packetcounter].ackbytes = NETGRAPH_NOPACKET;
678 conn->outgoing_netgraph[conn->outgoing_packetcounter].cleartime = conn->cleartime;
679 if (realtime > conn->cleartime)
683 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_CHOKEDPACKET;
688 static void NetConn_UpdateCleartime(double *cleartime, int rate, int burstsize, int len)
690 double bursttime = burstsize / (double)rate;
692 // delay later packets to obey rate limit
693 if (*cleartime < realtime - bursttime)
694 *cleartime = realtime - bursttime;
695 *cleartime = *cleartime + len / (double)rate;
697 // limit bursts to one packet in size ("dialup mode" emulating old behaviour)
698 if (net_test.integer)
700 if (*cleartime < realtime)
701 *cleartime = realtime;
705 static int NetConn_AddCryptoFlag(crypto_t *crypto)
707 // HACK: if an encrypted connection is used, randomly set some unused
708 // flags. When AES encryption is enabled, that will make resends differ
709 // from the original, so that e.g. substring filters in a router/IPS
710 // are unlikely to match a second time. See also "startkeylogger".
712 if (crypto->authenticated)
714 // Let's always set at least one of the bits.
715 int r = rand() % 7 + 1;
717 flag |= NETFLAG_CRYPTO0;
719 flag |= NETFLAG_CRYPTO1;
721 flag |= NETFLAG_CRYPTO2;
726 int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate, int burstsize, qboolean quakesignon_suppressreliables)
729 unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
730 unsigned char cryptosendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE+CRYPTO_HEADERSIZE];
732 // if this packet was supposedly choked, but we find ourselves sending one
733 // anyway, make sure the size counting starts at zero
734 // (this mostly happens on level changes and disconnects and such)
735 if (conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes == NETGRAPH_CHOKEDPACKET)
736 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes = NETGRAPH_NOPACKET;
738 conn->outgoing_netgraph[conn->outgoing_packetcounter].cleartime = conn->cleartime;
740 if (protocol == PROTOCOL_QUAKEWORLD)
743 qboolean sendreliable;
745 // note that it is ok to send empty messages to the qw server,
746 // otherwise it won't respond to us at all
748 sendreliable = false;
749 // if the remote side dropped the last reliable message, resend it
750 if (conn->qw.incoming_acknowledged > conn->qw.last_reliable_sequence && conn->qw.incoming_reliable_acknowledged != conn->qw.reliable_sequence)
752 // if the reliable transmit buffer is empty, copy the current message out
753 if (!conn->sendMessageLength && conn->message.cursize)
755 memcpy (conn->sendMessage, conn->message.data, conn->message.cursize);
756 conn->sendMessageLength = conn->message.cursize;
757 SZ_Clear(&conn->message); // clear the message buffer
758 conn->qw.reliable_sequence ^= 1;
761 // outgoing unreliable packet number, and outgoing reliable packet number (0 or 1)
762 StoreLittleLong(sendbuffer, conn->outgoing_unreliable_sequence | (((unsigned int)sendreliable)<<31));
763 // last received unreliable packet number, and last received reliable packet number (0 or 1)
764 StoreLittleLong(sendbuffer + 4, conn->qw.incoming_sequence | (((unsigned int)conn->qw.incoming_reliable_sequence)<<31));
766 conn->outgoing_unreliable_sequence++;
767 // client sends qport in every packet
768 if (conn == cls.netcon)
770 *((short *)(sendbuffer + 8)) = LittleShort(cls.qw_qport);
772 // also update cls.qw_outgoing_sequence
773 cls.qw_outgoing_sequence = conn->outgoing_unreliable_sequence;
775 if (packetLen + (sendreliable ? conn->sendMessageLength : 0) > 1400)
777 Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize);
781 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes += packetLen + 28;
783 // add the reliable message if there is one
786 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += conn->sendMessageLength + 28;
787 memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength);
788 packetLen += conn->sendMessageLength;
789 conn->qw.last_reliable_sequence = conn->outgoing_unreliable_sequence;
792 // add the unreliable message if possible
793 if (packetLen + data->cursize <= 1400)
795 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes += data->cursize + 28;
796 memcpy(sendbuffer + packetLen, data->data, data->cursize);
797 packetLen += data->cursize;
800 NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress);
803 conn->unreliableMessagesSent++;
805 totallen += packetLen + 28;
809 unsigned int packetLen;
810 unsigned int dataLen;
815 // if a reliable message fragment has been lost, send it again
816 if (conn->sendMessageLength && (realtime - conn->lastSendTime) > 1.0)
818 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
820 dataLen = conn->sendMessageLength;
825 dataLen = MAX_PACKETFRAGMENT;
829 packetLen = NET_HEADERSIZE + dataLen;
831 StoreBigLong(sendbuffer, packetLen | (NETFLAG_DATA | eom | NetConn_AddCryptoFlag(&conn->crypto)));
832 StoreBigLong(sendbuffer + 4, conn->nq.sendSequence - 1);
833 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
835 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += packetLen + 28;
837 sendme = Crypto_EncryptPacket(&conn->crypto, &sendbuffer, packetLen, &cryptosendbuffer, &sendmelen, sizeof(cryptosendbuffer));
838 if (sendme && NetConn_Write(conn->mysocket, sendme, (int)sendmelen, &conn->peeraddress) == (int)sendmelen)
840 conn->lastSendTime = realtime;
841 conn->packetsReSent++;
844 totallen += (int)sendmelen + 28;
847 // if we have a new reliable message to send, do so
848 if (!conn->sendMessageLength && conn->message.cursize && !quakesignon_suppressreliables)
850 if (conn->message.cursize > (int)sizeof(conn->sendMessage))
852 Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage));
853 conn->message.overflowed = true;
857 if (developer_networking.integer && conn == cls.netcon)
859 Con_Print("client sending reliable message to server:\n");
860 SZ_HexDumpToConsole(&conn->message);
863 memcpy(conn->sendMessage, conn->message.data, conn->message.cursize);
864 conn->sendMessageLength = conn->message.cursize;
865 SZ_Clear(&conn->message);
867 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
869 dataLen = conn->sendMessageLength;
874 dataLen = MAX_PACKETFRAGMENT;
878 packetLen = NET_HEADERSIZE + dataLen;
880 StoreBigLong(sendbuffer, packetLen | (NETFLAG_DATA | eom | NetConn_AddCryptoFlag(&conn->crypto)));
881 StoreBigLong(sendbuffer + 4, conn->nq.sendSequence);
882 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
884 conn->nq.sendSequence++;
886 conn->outgoing_netgraph[conn->outgoing_packetcounter].reliablebytes += packetLen + 28;
888 sendme = Crypto_EncryptPacket(&conn->crypto, &sendbuffer, packetLen, &cryptosendbuffer, &sendmelen, sizeof(cryptosendbuffer));
890 NetConn_Write(conn->mysocket, sendme, (int)sendmelen, &conn->peeraddress);
892 conn->lastSendTime = realtime;
894 conn->reliableMessagesSent++;
896 totallen += (int)sendmelen + 28;
899 // if we have an unreliable message to send, do so
902 packetLen = NET_HEADERSIZE + data->cursize;
904 if (packetLen > (int)sizeof(sendbuffer))
906 Con_Printf("NetConn_SendUnreliableMessage: message too big %u\n", data->cursize);
910 StoreBigLong(sendbuffer, packetLen | NETFLAG_UNRELIABLE | NetConn_AddCryptoFlag(&conn->crypto));
911 StoreBigLong(sendbuffer + 4, conn->outgoing_unreliable_sequence);
912 memcpy(sendbuffer + NET_HEADERSIZE, data->data, data->cursize);
914 conn->outgoing_unreliable_sequence++;
916 conn->outgoing_netgraph[conn->outgoing_packetcounter].unreliablebytes += packetLen + 28;
918 sendme = Crypto_EncryptPacket(&conn->crypto, &sendbuffer, packetLen, &cryptosendbuffer, &sendmelen, sizeof(cryptosendbuffer));
920 NetConn_Write(conn->mysocket, sendme, (int)sendmelen, &conn->peeraddress);
923 conn->unreliableMessagesSent++;
925 totallen += (int)sendmelen + 28;
929 NetConn_UpdateCleartime(&conn->cleartime, rate, burstsize, totallen);
934 qboolean NetConn_HaveClientPorts(void)
936 return !!cl_numsockets;
939 qboolean NetConn_HaveServerPorts(void)
941 return !!sv_numsockets;
944 void NetConn_CloseClientPorts(void)
946 for (;cl_numsockets > 0;cl_numsockets--)
947 if (cl_sockets[cl_numsockets - 1])
948 LHNET_CloseSocket(cl_sockets[cl_numsockets - 1]);
951 static void NetConn_OpenClientPort(const char *addressstring, lhnetaddresstype_t addresstype, int defaultport)
953 lhnetaddress_t address;
956 char addressstring2[1024];
957 if (addressstring && addressstring[0])
958 success = LHNETADDRESS_FromString(&address, addressstring, defaultport);
960 success = LHNETADDRESS_FromPort(&address, addresstype, defaultport);
963 if ((s = LHNET_OpenSocket_Connectionless(&address)))
965 cl_sockets[cl_numsockets++] = s;
966 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
967 if (addresstype != LHNETADDRESSTYPE_LOOP)
968 Con_Printf("Client opened a socket on address %s\n", addressstring2);
972 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
973 Con_Printf("Client failed to open a socket on address %s\n", addressstring2);
977 Con_Printf("Client unable to parse address %s\n", addressstring);
980 void NetConn_OpenClientPorts(void)
983 NetConn_CloseClientPorts();
985 SV_LockThreadMutex(); // FIXME recursive?
986 Crypto_LoadKeys(); // client sockets
987 SV_UnlockThreadMutex();
989 port = bound(0, cl_netport.integer, 65535);
990 if (cl_netport.integer != port)
991 Cvar_SetValueQuick(&cl_netport, port);
993 Con_Printf("Client using an automatically assigned port\n");
995 Con_Printf("Client using port %i\n", port);
996 NetConn_OpenClientPort(NULL, LHNETADDRESSTYPE_LOOP, 2);
997 NetConn_OpenClientPort(net_address.string, LHNETADDRESSTYPE_INET4, port);
998 #ifndef NOSUPPORTIPV6
999 NetConn_OpenClientPort(net_address_ipv6.string, LHNETADDRESSTYPE_INET6, port);
1003 void NetConn_CloseServerPorts(void)
1005 for (;sv_numsockets > 0;sv_numsockets--)
1006 if (sv_sockets[sv_numsockets - 1])
1007 LHNET_CloseSocket(sv_sockets[sv_numsockets - 1]);
1010 static qboolean NetConn_OpenServerPort(const char *addressstring, lhnetaddresstype_t addresstype, int defaultport, int range)
1012 lhnetaddress_t address;
1015 char addressstring2[1024];
1018 for (port = defaultport; port <= defaultport + range; port++)
1020 if (addressstring && addressstring[0])
1021 success = LHNETADDRESS_FromString(&address, addressstring, port);
1023 success = LHNETADDRESS_FromPort(&address, addresstype, port);
1026 if ((s = LHNET_OpenSocket_Connectionless(&address)))
1028 sv_sockets[sv_numsockets++] = s;
1029 LHNETADDRESS_ToString(LHNET_AddressFromSocket(s), addressstring2, sizeof(addressstring2), true);
1030 if (addresstype != LHNETADDRESSTYPE_LOOP)
1031 Con_Printf("Server listening on address %s\n", addressstring2);
1036 LHNETADDRESS_ToString(&address, addressstring2, sizeof(addressstring2), true);
1037 Con_Printf("Server failed to open socket on address %s\n", addressstring2);
1042 Con_Printf("Server unable to parse address %s\n", addressstring);
1043 // if it cant parse one address, it wont be able to parse another for sure
1050 void NetConn_OpenServerPorts(int opennetports)
1053 NetConn_CloseServerPorts();
1055 SV_LockThreadMutex(); // FIXME recursive?
1056 Crypto_LoadKeys(); // server sockets
1057 SV_UnlockThreadMutex();
1059 NetConn_UpdateSockets();
1060 port = bound(0, sv_netport.integer, 65535);
1063 Con_Printf("Server using port %i\n", port);
1064 if (sv_netport.integer != port)
1065 Cvar_SetValueQuick(&sv_netport, port);
1066 if (cls.state != ca_dedicated)
1067 NetConn_OpenServerPort(NULL, LHNETADDRESSTYPE_LOOP, 1, 1);
1070 #ifndef NOSUPPORTIPV6
1071 qboolean ip4success = NetConn_OpenServerPort(net_address.string, LHNETADDRESSTYPE_INET4, port, 100);
1072 NetConn_OpenServerPort(net_address_ipv6.string, LHNETADDRESSTYPE_INET6, port, ip4success ? 1 : 100);
1074 NetConn_OpenServerPort(net_address.string, LHNETADDRESSTYPE_INET4, port, 100);
1077 if (sv_numsockets == 0)
1078 Host_Error("NetConn_OpenServerPorts: unable to open any ports!");
1081 lhnetsocket_t *NetConn_ChooseClientSocketForAddress(lhnetaddress_t *address)
1083 int i, a = LHNETADDRESS_GetAddressType(address);
1084 for (i = 0;i < cl_numsockets;i++)
1085 if (cl_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == a)
1086 return cl_sockets[i];
1090 lhnetsocket_t *NetConn_ChooseServerSocketForAddress(lhnetaddress_t *address)
1092 int i, a = LHNETADDRESS_GetAddressType(address);
1093 for (i = 0;i < sv_numsockets;i++)
1094 if (sv_sockets[i] && LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(sv_sockets[i])) == a)
1095 return sv_sockets[i];
1099 netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress)
1102 conn = (netconn_t *)Mem_Alloc(netconn_mempool, sizeof(*conn));
1103 conn->mysocket = mysocket;
1104 conn->peeraddress = *peeraddress;
1105 conn->lastMessageTime = realtime;
1106 conn->message.data = conn->messagedata;
1107 conn->message.maxsize = sizeof(conn->messagedata);
1108 conn->message.cursize = 0;
1109 // LordHavoc: (inspired by ProQuake) use a short connect timeout to
1110 // reduce effectiveness of connection request floods
1111 conn->timeout = realtime + net_connecttimeout.value;
1112 LHNETADDRESS_ToString(&conn->peeraddress, conn->address, sizeof(conn->address), true);
1113 conn->next = netconn_list;
1114 netconn_list = conn;
1118 void NetConn_ClearFlood(lhnetaddress_t *peeraddress, server_floodaddress_t *floodlist, size_t floodlength);
1119 void NetConn_Close(netconn_t *conn)
1122 // remove connection from list
1124 // allow the client to reconnect immediately
1125 NetConn_ClearFlood(&(conn->peeraddress), sv.connectfloodaddresses, sizeof(sv.connectfloodaddresses) / sizeof(sv.connectfloodaddresses[0]));
1127 if (conn == netconn_list)
1128 netconn_list = conn->next;
1131 for (c = netconn_list;c;c = c->next)
1133 if (c->next == conn)
1135 c->next = conn->next;
1139 // not found in list, we'll avoid crashing here...
1147 static int clientport = -1;
1148 static int clientport2 = -1;
1149 static int hostport = -1;
1150 void NetConn_UpdateSockets(void)
1154 // TODO add logic to automatically close sockets if needed
1155 LHNET_DefaultDSCP(net_tos_dscp.integer);
1157 if (cls.state != ca_dedicated)
1159 if (clientport2 != cl_netport.integer)
1161 clientport2 = cl_netport.integer;
1162 if (cls.state == ca_connected)
1163 Con_Print("Changing \"cl_port\" will not take effect until you reconnect.\n");
1165 if (cls.state == ca_disconnected && clientport != clientport2)
1167 clientport = clientport2;
1168 NetConn_CloseClientPorts();
1170 if (cl_numsockets == 0)
1171 NetConn_OpenClientPorts();
1174 if (hostport != sv_netport.integer)
1176 hostport = sv_netport.integer;
1178 Con_Print("Changing \"port\" will not take effect until \"map\" command is executed.\n");
1181 for (j = 0;j < MAX_RCONS;j++)
1183 i = (cls.rcon_ringpos + j + 1) % MAX_RCONS;
1184 if(cls.rcon_commands[i][0])
1186 if(realtime > cls.rcon_timeout[i])
1189 LHNETADDRESS_ToString(&cls.rcon_addresses[i], s, sizeof(s), true);
1190 Con_Printf("rcon to %s (for command %s) failed: challenge request timed out\n", s, cls.rcon_commands[i]);
1191 cls.rcon_commands[i][0] = 0;
1199 static int NetConn_ReceivedMessage(netconn_t *conn, const unsigned char *data, size_t length, protocolversion_t protocol, double newtimeout)
1201 int originallength = (int)length;
1202 unsigned char sendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
1203 unsigned char cryptosendbuffer[NET_HEADERSIZE+NET_MAXMESSAGE+CRYPTO_HEADERSIZE];
1204 unsigned char cryptoreadbuffer[NET_HEADERSIZE+NET_MAXMESSAGE+CRYPTO_HEADERSIZE];
1208 if (protocol == PROTOCOL_QUAKEWORLD)
1210 unsigned int sequence, sequence_ack;
1211 qboolean reliable_ack, reliable_message;
1215 sequence = LittleLong(*((int *)(data + 0)));
1216 sequence_ack = LittleLong(*((int *)(data + 4)));
1220 if (conn != cls.netcon)
1225 // 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?)
1226 //qport = LittleShort(*((int *)(data + 8)));
1231 conn->packetsReceived++;
1232 reliable_message = (sequence >> 31) != 0;
1233 reliable_ack = (sequence_ack >> 31) != 0;
1234 sequence &= ~(1<<31);
1235 sequence_ack &= ~(1<<31);
1236 if (sequence <= conn->qw.incoming_sequence)
1238 //Con_DPrint("Got a stale datagram\n");
1241 count = sequence - (conn->qw.incoming_sequence + 1);
1244 conn->droppedDatagrams += count;
1245 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1246 // If too may packets have been dropped, only write the
1247 // last NETGRAPH_PACKETS ones to the netgraph. Why?
1248 // Because there's no point in writing more than
1249 // these as the netgraph is going to be full anyway.
1250 if (count > NETGRAPH_PACKETS)
1251 count = NETGRAPH_PACKETS;
1254 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1255 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1256 conn->incoming_netgraph[conn->incoming_packetcounter].cleartime = conn->incoming_cleartime;
1257 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = NETGRAPH_LOSTPACKET;
1258 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1259 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1262 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1263 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1264 conn->incoming_netgraph[conn->incoming_packetcounter].cleartime = conn->incoming_cleartime;
1265 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = originallength + 28;
1266 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1267 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1268 NetConn_UpdateCleartime(&conn->incoming_cleartime, cl_rate.integer, cl_rate_burstsize.integer, originallength + 28);
1270 // limit bursts to one packet in size ("dialup mode" emulating old behaviour)
1271 if (net_test.integer)
1273 if (conn->cleartime < realtime)
1274 conn->cleartime = realtime;
1277 if (reliable_ack == conn->qw.reliable_sequence)
1279 // received, now we will be able to send another reliable message
1280 conn->sendMessageLength = 0;
1281 conn->reliableMessagesReceived++;
1283 conn->qw.incoming_sequence = sequence;
1284 if (conn == cls.netcon)
1285 cls.qw_incoming_sequence = conn->qw.incoming_sequence;
1286 conn->qw.incoming_acknowledged = sequence_ack;
1287 conn->qw.incoming_reliable_acknowledged = reliable_ack;
1288 if (reliable_message)
1289 conn->qw.incoming_reliable_sequence ^= 1;
1290 conn->lastMessageTime = realtime;
1291 conn->timeout = realtime + newtimeout;
1292 conn->unreliableMessagesReceived++;
1293 if (conn == cls.netcon)
1295 SZ_Clear(&cl_message);
1296 SZ_Write(&cl_message, data, (int)length);
1297 MSG_BeginReading(&cl_message);
1301 SZ_Clear(&sv_message);
1302 SZ_Write(&sv_message, data, (int)length);
1303 MSG_BeginReading(&sv_message);
1311 unsigned int sequence;
1316 originallength = (int)length;
1317 data = (const unsigned char *) Crypto_DecryptPacket(&conn->crypto, data, length, cryptoreadbuffer, &length, sizeof(cryptoreadbuffer));
1323 qlength = (unsigned int)BuffBigLong(data);
1324 flags = qlength & ~NETFLAG_LENGTH_MASK;
1325 qlength &= NETFLAG_LENGTH_MASK;
1326 // control packets were already handled
1327 if (!(flags & NETFLAG_CTL) && qlength == length)
1329 sequence = BuffBigLong(data + 4);
1330 conn->packetsReceived++;
1333 if (flags & NETFLAG_UNRELIABLE)
1335 if (sequence >= conn->nq.unreliableReceiveSequence)
1337 if (sequence > conn->nq.unreliableReceiveSequence)
1339 count = sequence - conn->nq.unreliableReceiveSequence;
1340 conn->droppedDatagrams += count;
1341 //Con_DPrintf("Dropped %u datagram(s)\n", count);
1342 // If too may packets have been dropped, only write the
1343 // last NETGRAPH_PACKETS ones to the netgraph. Why?
1344 // Because there's no point in writing more than
1345 // these as the netgraph is going to be full anyway.
1346 if (count > NETGRAPH_PACKETS)
1347 count = NETGRAPH_PACKETS;
1350 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1351 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1352 conn->incoming_netgraph[conn->incoming_packetcounter].cleartime = conn->incoming_cleartime;
1353 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = NETGRAPH_LOSTPACKET;
1354 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1355 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1358 conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS;
1359 conn->incoming_netgraph[conn->incoming_packetcounter].time = realtime;
1360 conn->incoming_netgraph[conn->incoming_packetcounter].cleartime = conn->incoming_cleartime;
1361 conn->incoming_netgraph[conn->incoming_packetcounter].unreliablebytes = originallength + 28;
1362 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes = NETGRAPH_NOPACKET;
1363 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes = NETGRAPH_NOPACKET;
1364 NetConn_UpdateCleartime(&conn->incoming_cleartime, cl_rate.integer, cl_rate_burstsize.integer, originallength + 28);
1366 conn->nq.unreliableReceiveSequence = sequence + 1;
1367 conn->lastMessageTime = realtime;
1368 conn->timeout = realtime + newtimeout;
1369 conn->unreliableMessagesReceived++;
1372 if (conn == cls.netcon)
1374 SZ_Clear(&cl_message);
1375 SZ_Write(&cl_message, data, (int)length);
1376 MSG_BeginReading(&cl_message);
1380 SZ_Clear(&sv_message);
1381 SZ_Write(&sv_message, data, (int)length);
1382 MSG_BeginReading(&sv_message);
1388 // Con_DPrint("Got a stale datagram\n");
1391 else if (flags & NETFLAG_ACK)
1393 conn->incoming_netgraph[conn->incoming_packetcounter].ackbytes += originallength + 28;
1394 NetConn_UpdateCleartime(&conn->incoming_cleartime, cl_rate.integer, cl_rate_burstsize.integer, originallength + 28);
1396 if (sequence == (conn->nq.sendSequence - 1))
1398 if (sequence == conn->nq.ackSequence)
1400 conn->nq.ackSequence++;
1401 if (conn->nq.ackSequence != conn->nq.sendSequence)
1402 Con_DPrint("ack sequencing error\n");
1403 conn->lastMessageTime = realtime;
1404 conn->timeout = realtime + newtimeout;
1405 if (conn->sendMessageLength > MAX_PACKETFRAGMENT)
1407 unsigned int packetLen;
1408 unsigned int dataLen;
1411 conn->sendMessageLength -= MAX_PACKETFRAGMENT;
1412 memmove(conn->sendMessage, conn->sendMessage+MAX_PACKETFRAGMENT, conn->sendMessageLength);
1414 if (conn->sendMessageLength <= MAX_PACKETFRAGMENT)
1416 dataLen = conn->sendMessageLength;
1421 dataLen = MAX_PACKETFRAGMENT;
1425 packetLen = NET_HEADERSIZE + dataLen;
1427 StoreBigLong(sendbuffer, packetLen | (NETFLAG_DATA | eom | NetConn_AddCryptoFlag(&conn->crypto)));
1428 StoreBigLong(sendbuffer + 4, conn->nq.sendSequence);
1429 memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen);
1431 conn->nq.sendSequence++;
1433 sendme = Crypto_EncryptPacket(&conn->crypto, &sendbuffer, packetLen, &cryptosendbuffer, &sendmelen, sizeof(cryptosendbuffer));
1434 if (sendme && NetConn_Write(conn->mysocket, sendme, (int)sendmelen, &conn->peeraddress) == (int)sendmelen)
1436 conn->lastSendTime = realtime;
1437 conn->packetsSent++;
1441 conn->sendMessageLength = 0;
1444 // Con_DPrint("Duplicate ACK received\n");
1447 // Con_DPrint("Stale ACK received\n");
1450 else if (flags & NETFLAG_DATA)
1452 unsigned char temppacket[8];
1453 conn->incoming_netgraph[conn->incoming_packetcounter].reliablebytes += originallength + 28;
1454 NetConn_UpdateCleartime(&conn->incoming_cleartime, cl_rate.integer, cl_rate_burstsize.integer, originallength + 28);
1456 conn->outgoing_netgraph[conn->outgoing_packetcounter].ackbytes += 8 + 28;
1458 StoreBigLong(temppacket, 8 | NETFLAG_ACK | NetConn_AddCryptoFlag(&conn->crypto));
1459 StoreBigLong(temppacket + 4, sequence);
1460 sendme = Crypto_EncryptPacket(&conn->crypto, temppacket, 8, &cryptosendbuffer, &sendmelen, sizeof(cryptosendbuffer));
1462 NetConn_Write(conn->mysocket, sendme, (int)sendmelen, &conn->peeraddress);
1463 if (sequence == conn->nq.receiveSequence)
1465 conn->lastMessageTime = realtime;
1466 conn->timeout = realtime + newtimeout;
1467 conn->nq.receiveSequence++;
1468 if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) {
1469 memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length);
1470 conn->receiveMessageLength += (int)length;
1472 Con_Printf( "Reliable message (seq: %i) too big for message buffer!\n"
1473 "Dropping the message!\n", sequence );
1474 conn->receiveMessageLength = 0;
1477 if (flags & NETFLAG_EOM)
1479 conn->reliableMessagesReceived++;
1480 length = conn->receiveMessageLength;
1481 conn->receiveMessageLength = 0;
1484 if (conn == cls.netcon)
1486 SZ_Clear(&cl_message);
1487 SZ_Write(&cl_message, conn->receiveMessage, (int)length);
1488 MSG_BeginReading(&cl_message);
1492 SZ_Clear(&sv_message);
1493 SZ_Write(&sv_message, conn->receiveMessage, (int)length);
1494 MSG_BeginReading(&sv_message);
1501 conn->receivedDuplicateCount++;
1509 static void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, protocolversion_t initialprotocol)
1512 cls.connect_trying = false;
1514 M_Update_Return_Reason("");
1516 // the connection request succeeded, stop current connection and set up a new connection
1518 // if we're connecting to a remote server, shut down any local server
1519 if (LHNETADDRESS_GetAddressType(peeraddress) != LHNETADDRESSTYPE_LOOP && sv.active)
1521 SV_LockThreadMutex();
1522 Host_ShutdownServer ();
1523 SV_UnlockThreadMutex();
1525 // allocate a net connection to keep track of things
1526 cls.netcon = NetConn_Open(mysocket, peeraddress);
1527 crypto = &cls.netcon->crypto;
1528 if(cls.crypto.authenticated)
1530 Crypto_FinishInstance(crypto, &cls.crypto);
1531 Con_Printf("%s connection to %s has been established: server is %s@%s%.*s, I am %.*s@%s%.*s\n",
1532 crypto->use_aes ? "Encrypted" : "Authenticated",
1533 cls.netcon->address,
1534 crypto->server_idfp[0] ? crypto->server_idfp : "-",
1535 (crypto->server_issigned || !crypto->server_keyfp[0]) ? "" : "~",
1536 crypto_keyfp_recommended_length, crypto->server_keyfp[0] ? crypto->server_keyfp : "-",
1537 crypto_keyfp_recommended_length, crypto->client_idfp[0] ? crypto->client_idfp : "-",
1538 (crypto->client_issigned || !crypto->client_keyfp[0]) ? "" : "~",
1539 crypto_keyfp_recommended_length, crypto->client_keyfp[0] ? crypto->client_keyfp : "-"
1542 Con_Printf("Connection accepted to %s\n", cls.netcon->address);
1543 key_dest = key_game;
1547 cls.demonum = -1; // not in the demo loop now
1548 cls.state = ca_connected;
1549 cls.signon = 0; // need all the signon messages before playing
1550 cls.protocol = initialprotocol;
1551 // reset move sequence numbering on this new connection
1552 cls.servermovesequence = 0;
1553 if (cls.protocol == PROTOCOL_QUAKEWORLD)
1554 Cmd_ForwardStringToServer("new");
1555 if (cls.protocol == PROTOCOL_QUAKE)
1557 // write a keepalive (clc_nop) as it seems to greatly improve the
1558 // chances of connecting to a netquake server
1560 unsigned char buf[4];
1561 memset(&msg, 0, sizeof(msg));
1563 msg.maxsize = sizeof(buf);
1564 MSG_WriteChar(&msg, clc_nop);
1565 NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000, 0, false);
1569 int NetConn_IsLocalGame(void)
1571 if (cls.state == ca_connected && sv.active && cl.maxclients == 1)
1577 static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *addressstring)
1581 serverlist_entry_t *entry = NULL;
1583 // search the cache for this server and update it
1584 for (n = 0;n < serverlist_cachecount;n++) {
1585 entry = &serverlist_cache[ n ];
1586 if (!strcmp(addressstring, entry->info.cname))
1590 if (n == serverlist_cachecount)
1592 // LAN search doesnt require an answer from the master server so we wont
1593 // know the ping nor will it be initialized already...
1596 if (serverlist_cachecount == SERVERLIST_TOTALSIZE)
1599 if (serverlist_maxcachecount <= serverlist_cachecount)
1601 serverlist_maxcachecount += 64;
1602 serverlist_cache = (serverlist_entry_t *)Mem_Realloc(netconn_mempool, (void *)serverlist_cache, sizeof(serverlist_entry_t) * serverlist_maxcachecount);
1604 entry = &serverlist_cache[n];
1606 memset(entry, 0, sizeof(*entry));
1607 // store the data the engine cares about (address and ping)
1608 strlcpy(entry->info.cname, addressstring, sizeof(entry->info.cname));
1609 entry->info.ping = 100000;
1610 entry->querytime = realtime;
1611 // if not in the slist menu we should print the server to console
1612 if (serverlist_consoleoutput)
1613 Con_Printf("querying %s\n", addressstring);
1614 ++serverlist_cachecount;
1616 // if this is the first reply from this server, count it as having replied
1617 pingtime = (int)((realtime - entry->querytime) * 1000.0 + 0.5);
1618 pingtime = bound(0, pingtime, 9999);
1619 if (entry->query == SQS_REFRESHING) {
1620 entry->info.ping = pingtime;
1621 entry->query = SQS_QUERIED;
1623 // convert to unsigned to catch the -1
1624 // 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]
1625 entry->info.ping = min((unsigned) entry->info.ping, (unsigned) pingtime);
1629 // other server info is updated by the caller
1633 static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n)
1635 serverlist_entry_t *entry = &serverlist_cache[n];
1636 serverlist_info_t *info = &entry->info;
1637 // update description strings for engine menu and console output
1638 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);
1639 dpsnprintf(entry->line2, sizeof(serverlist_cache[n].line2), "^4%-21.21s %-19.19s ^%c%-17.17s^4 %-20.20s", info->cname, info->game,
1641 info->gameversion != gameversion.integer
1644 gameversion_min.integer >= 0 // min/max range set by user/mod?
1645 && gameversion_max.integer >= 0
1646 && gameversion_min.integer <= info->gameversion // version of server in min/max range?
1647 && gameversion_max.integer >= info->gameversion
1650 info->mod, info->map);
1651 if (entry->query == SQS_QUERIED)
1653 if(!serverlist_paused)
1654 ServerList_ViewList_Remove(entry);
1656 // if not in the slist menu we should print the server to console (if wanted)
1657 else if( serverlist_consoleoutput )
1658 Con_Printf("%s\n%s\n", serverlist_cache[n].line1, serverlist_cache[n].line2);
1659 // and finally, update the view set
1660 if(!serverlist_paused)
1661 ServerList_ViewList_Insert( entry );
1662 // update the entry's state
1663 serverlist_cache[n].query = SQS_QUERIED;
1666 // returns true, if it's sensible to continue the processing
1667 static qboolean NetConn_ClientParsePacket_ServerList_PrepareQuery( int protocol, const char *ipstring, qboolean isfavorite ) {
1669 serverlist_entry_t *entry;
1671 // ignore the rest of the message if the serverlist is full
1672 if( serverlist_cachecount == SERVERLIST_TOTALSIZE )
1674 // also ignore it if we have already queried it (other master server response)
1675 for( n = 0 ; n < serverlist_cachecount ; n++ )
1676 if( !strcmp( ipstring, serverlist_cache[ n ].info.cname ) )
1679 if( n < serverlist_cachecount ) {
1680 // the entry has already been queried once or
1684 if (serverlist_maxcachecount <= n)
1686 serverlist_maxcachecount += 64;
1687 serverlist_cache = (serverlist_entry_t *)Mem_Realloc(netconn_mempool, (void *)serverlist_cache, sizeof(serverlist_entry_t) * serverlist_maxcachecount);
1690 entry = &serverlist_cache[n];
1692 memset(entry, 0, sizeof(*entry));
1693 entry->protocol = protocol;
1694 // store the data the engine cares about (address and ping)
1695 strlcpy (entry->info.cname, ipstring, sizeof(entry->info.cname));
1697 entry->info.isfavorite = isfavorite;
1699 // no, then reset the ping right away
1700 entry->info.ping = -1;
1701 // we also want to increase the serverlist_cachecount then
1702 serverlist_cachecount++;
1705 entry->query = SQS_QUERYING;
1710 static void NetConn_ClientParsePacket_ServerList_ParseDPList(lhnetaddress_t *senderaddress, const unsigned char *data, int length, qboolean isextended)
1713 if (serverlist_consoleoutput)
1714 Con_Printf("received DarkPlaces %sserver list...\n", isextended ? "extended " : "");
1717 char ipstring [128];
1720 if (data[0] == '\\')
1722 unsigned short port = data[5] * 256 + data[6];
1724 if (port != 0 && (data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF || data[4] != 0xFF))
1725 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%hu", data[1], data[2], data[3], data[4], port);
1727 // move on to next address in packet
1732 else if (data[0] == '/' && isextended && length >= 19)
1734 unsigned short port = data[17] * 256 + data[18];
1742 /// \TODO: make some basic checks of the IP address (broadcast, ...)
1744 ifname = LHNETADDRESS_GetInterfaceName(senderaddress, ifnamebuf, sizeof(ifnamebuf));
1747 dpsnprintf (ipstring, sizeof (ipstring), "[%x:%x:%x:%x:%x:%x:%x:%x%%%s]:%hu",
1748 (data[1] << 8) | data[2], (data[3] << 8) | data[4], (data[5] << 8) | data[6], (data[7] << 8) | data[8],
1749 (data[9] << 8) | data[10], (data[11] << 8) | data[12], (data[13] << 8) | data[14], (data[15] << 8) | data[16],
1755 dpsnprintf (ipstring, sizeof (ipstring), "[%x:%x:%x:%x:%x:%x:%x:%x]:%hu",
1756 (data[1] << 8) | data[2], (data[3] << 8) | data[4], (data[5] << 8) | data[6], (data[7] << 8) | data[8],
1757 (data[9] << 8) | data[10], (data[11] << 8) | data[12], (data[13] << 8) | data[14], (data[15] << 8) | data[16],
1762 // move on to next address in packet
1768 Con_Print("Error while parsing the server list\n");
1772 if (serverlist_consoleoutput && developer_networking.integer)
1773 Con_Printf("Requesting info from DarkPlaces server %s\n", ipstring);
1775 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, ipstring, false ) ) {
1781 // begin or resume serverlist queries
1782 serverlist_querysleep = false;
1783 serverlist_querywaittime = realtime + 3;
1787 static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
1789 qboolean fromserver;
1791 char *string, addressstring2[128];
1792 char stringbuf[16384];
1793 char senddata[NET_HEADERSIZE+NET_MAXMESSAGE+CRYPTO_HEADERSIZE];
1796 char infostringvalue[MAX_INPUTLINE];
1802 // quakeworld ingame packet
1803 fromserver = cls.netcon && mysocket == cls.netcon->mysocket && !LHNETADDRESS_Compare(&cls.netcon->peeraddress, peeraddress);
1805 // convert the address to a string incase we need it
1806 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
1808 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
1810 // received a command string - strip off the packaging and put it
1811 // into our string buffer with NULL termination
1814 length = min(length, (int)sizeof(stringbuf) - 1);
1815 memcpy(stringbuf, data, length);
1816 stringbuf[length] = 0;
1819 if (developer_networking.integer)
1821 Con_Printf("NetConn_ClientParsePacket: %s sent us a command:\n", addressstring2);
1822 Com_HexDumpToConsole(data, length);
1825 sendlength = sizeof(senddata) - 4;
1826 switch(Crypto_ClientParsePacket(string, length, senddata+4, &sendlength, peeraddress))
1828 case CRYPTO_NOMATCH:
1834 memcpy(senddata, "\377\377\377\377", 4);
1835 NetConn_Write(mysocket, senddata, (int)sendlength+4, peeraddress);
1838 case CRYPTO_DISCARD:
1841 memcpy(senddata, "\377\377\377\377", 4);
1842 NetConn_Write(mysocket, senddata, (int)sendlength+4, peeraddress);
1846 case CRYPTO_REPLACE:
1847 string = senddata+4;
1848 length = (int)sendlength;
1852 if (length >= 10 && !memcmp(string, "challenge ", 10) && cls.rcon_trying)
1855 for (j = 0;j < MAX_RCONS;j++)
1857 // note: this value from i is used outside the loop too...
1858 i = (cls.rcon_ringpos + j) % MAX_RCONS;
1859 if(cls.rcon_commands[i][0])
1860 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[i]))
1869 dpsnprintf(argbuf, sizeof(argbuf), "%s %s", string + 10, cls.rcon_commands[i]);
1870 memcpy(buf, "\377\377\377\377srcon HMAC-MD4 CHALLENGE ", 29);
1872 e = strchr(rcon_password.string, ' ');
1873 n = e ? e-rcon_password.string : (int)strlen(rcon_password.string);
1875 if(HMAC_MDFOUR_16BYTES((unsigned char *) (buf + 29), (unsigned char *) argbuf, (int)strlen(argbuf), (unsigned char *) rcon_password.string, n))
1879 strlcpy(buf + 46, argbuf, sizeof(buf) - 46);
1880 NetConn_Write(mysocket, buf, 46 + (int)strlen(buf + 46), peeraddress);
1881 cls.rcon_commands[i][0] = 0;
1884 for (k = 0;k < MAX_RCONS;k++)
1885 if(cls.rcon_commands[k][0])
1886 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[k]))
1891 NetConn_WriteString(mysocket, "\377\377\377\377getchallenge", peeraddress);
1892 // extend the timeout on other requests as we asked for a challenge
1893 for (l = 0;l < MAX_RCONS;l++)
1894 if(cls.rcon_commands[l][0])
1895 if (!LHNETADDRESS_Compare(peeraddress, &cls.rcon_addresses[l]))
1896 cls.rcon_timeout[l] = realtime + rcon_secure_challengetimeout.value;
1899 return true; // we used up the challenge, so we can't use this oen for connecting now anyway
1903 if (length >= 10 && !memcmp(string, "challenge ", 10) && cls.connect_trying)
1905 // darkplaces or quake3
1906 char protocolnames[1400];
1907 Protocol_Names(protocolnames, sizeof(protocolnames));
1908 Con_DPrintf("\"%s\" received, sending connect request back to %s\n", string, addressstring2);
1910 M_Update_Return_Reason("Got challenge response");
1912 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
1913 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
1914 // TODO: add userinfo stuff here instead of using NQ commands?
1915 NetConn_WriteString(mysocket, va(vabuf, sizeof(vabuf), "\377\377\377\377connect\\protocol\\darkplaces 3\\protocols\\%s%s\\challenge\\%s", protocolnames, cls.connect_userinfo, string + 10), peeraddress);
1918 if (length == 6 && !memcmp(string, "accept", 6) && cls.connect_trying)
1920 // darkplaces or quake3
1922 M_Update_Return_Reason("Accepted");
1924 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_DARKPLACES3);
1927 if (length > 7 && !memcmp(string, "reject ", 7) && cls.connect_trying)
1929 char rejectreason[128];
1930 cls.connect_trying = false;
1932 length = min(length - 7, (int)sizeof(rejectreason) - 1);
1933 memcpy(rejectreason, string, length);
1934 rejectreason[length] = 0;
1936 M_Update_Return_Reason(rejectreason);
1941 if (length >= 15 && !memcmp(string, "statusResponse\x0A", 15))
1943 serverlist_info_t *info;
1948 // search the cache for this server and update it
1949 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
1953 info = &serverlist_cache[n].info;
1958 info->qcstatus[0] = 0;
1959 info->players[0] = 0;
1960 info->protocol = -1;
1961 info->numplayers = 0;
1963 info->maxplayers = 0;
1964 info->gameversion = 0;
1966 p = strchr(string, '\n');
1969 *p = 0; // cut off the string there
1973 Con_Printf("statusResponse without players block?\n");
1975 if ((s = InfoString_GetValue(string, "gamename" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->game, s, sizeof (info->game));
1976 if ((s = InfoString_GetValue(string, "modname" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
1977 if ((s = InfoString_GetValue(string, "mapname" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->map , s, sizeof (info->map ));
1978 if ((s = InfoString_GetValue(string, "hostname" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->name, s, sizeof (info->name));
1979 if ((s = InfoString_GetValue(string, "protocol" , infostringvalue, sizeof(infostringvalue))) != NULL) info->protocol = atoi(s);
1980 if ((s = InfoString_GetValue(string, "clients" , infostringvalue, sizeof(infostringvalue))) != NULL) info->numplayers = atoi(s);
1981 if ((s = InfoString_GetValue(string, "bots" , infostringvalue, sizeof(infostringvalue))) != NULL) info->numbots = atoi(s);
1982 if ((s = InfoString_GetValue(string, "sv_maxclients", infostringvalue, sizeof(infostringvalue))) != NULL) info->maxplayers = atoi(s);
1983 if ((s = InfoString_GetValue(string, "gameversion" , infostringvalue, sizeof(infostringvalue))) != NULL) info->gameversion = atoi(s);
1984 if ((s = InfoString_GetValue(string, "qcstatus" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->qcstatus, s, sizeof(info->qcstatus));
1985 if (p != NULL) strlcpy(info->players, p, sizeof(info->players));
1986 info->numhumans = info->numplayers - max(0, info->numbots);
1987 info->freeslots = info->maxplayers - info->numplayers;
1989 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
1993 if (length >= 13 && !memcmp(string, "infoResponse\x0A", 13))
1995 serverlist_info_t *info;
1999 // search the cache for this server and update it
2000 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
2004 info = &serverlist_cache[n].info;
2009 info->qcstatus[0] = 0;
2010 info->players[0] = 0;
2011 info->protocol = -1;
2012 info->numplayers = 0;
2014 info->maxplayers = 0;
2015 info->gameversion = 0;
2017 if ((s = InfoString_GetValue(string, "gamename" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->game, s, sizeof (info->game));
2018 if ((s = InfoString_GetValue(string, "modname" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));
2019 if ((s = InfoString_GetValue(string, "mapname" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->map , s, sizeof (info->map ));
2020 if ((s = InfoString_GetValue(string, "hostname" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->name, s, sizeof (info->name));
2021 if ((s = InfoString_GetValue(string, "protocol" , infostringvalue, sizeof(infostringvalue))) != NULL) info->protocol = atoi(s);
2022 if ((s = InfoString_GetValue(string, "clients" , infostringvalue, sizeof(infostringvalue))) != NULL) info->numplayers = atoi(s);
2023 if ((s = InfoString_GetValue(string, "bots" , infostringvalue, sizeof(infostringvalue))) != NULL) info->numbots = atoi(s);
2024 if ((s = InfoString_GetValue(string, "sv_maxclients", infostringvalue, sizeof(infostringvalue))) != NULL) info->maxplayers = atoi(s);
2025 if ((s = InfoString_GetValue(string, "gameversion" , infostringvalue, sizeof(infostringvalue))) != NULL) info->gameversion = atoi(s);
2026 if ((s = InfoString_GetValue(string, "qcstatus" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->qcstatus, s, sizeof(info->qcstatus));
2027 info->numhumans = info->numplayers - max(0, info->numbots);
2028 info->freeslots = info->maxplayers - info->numplayers;
2030 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
2034 if (!strncmp(string, "getserversResponse\\", 19) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
2036 // Extract the IP addresses
2039 NetConn_ClientParsePacket_ServerList_ParseDPList(peeraddress, data, length, false);
2042 if (!strncmp(string, "getserversExtResponse", 21) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
2044 // Extract the IP addresses
2047 NetConn_ClientParsePacket_ServerList_ParseDPList(peeraddress, data, length, true);
2050 if (!memcmp(string, "d\n", 2) && serverlist_cachecount < SERVERLIST_TOTALSIZE)
2052 // Extract the IP addresses
2056 if (serverlist_consoleoutput)
2057 Con_Printf("received QuakeWorld server list from %s...\n", addressstring2);
2058 while (length >= 6 && (data[0] != 0xFF || data[1] != 0xFF || data[2] != 0xFF || data[3] != 0xFF) && data[4] * 256 + data[5] != 0)
2060 dpsnprintf (ipstring, sizeof (ipstring), "%u.%u.%u.%u:%u", data[0], data[1], data[2], data[3], data[4] * 256 + data[5]);
2061 if (serverlist_consoleoutput && developer_networking.integer)
2062 Con_Printf("Requesting info from QuakeWorld server %s\n", ipstring);
2064 if( !NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, ipstring, false ) ) {
2068 // move on to next address in packet
2072 // begin or resume serverlist queries
2073 serverlist_querysleep = false;
2074 serverlist_querywaittime = realtime + 3;
2078 if (!strncmp(string, "extResponse ", 12))
2080 ++cl_net_extresponse_count;
2081 if(cl_net_extresponse_count > NET_EXTRESPONSE_MAX)
2082 cl_net_extresponse_count = NET_EXTRESPONSE_MAX;
2083 cl_net_extresponse_last = (cl_net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
2084 dpsnprintf(cl_net_extresponse[cl_net_extresponse_last], sizeof(cl_net_extresponse[cl_net_extresponse_last]), "\"%s\" %s", addressstring2, string + 12);
2087 if (!strncmp(string, "ping", 4))
2089 if (developer_extra.integer)
2090 Con_DPrintf("Received ping from %s, sending ack\n", addressstring2);
2091 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
2094 if (!strncmp(string, "ack", 3))
2096 // QuakeWorld compatibility
2097 if (length > 1 && string[0] == 'c' && (string[1] == '-' || (string[1] >= '0' && string[1] <= '9')) && cls.connect_trying)
2099 // challenge message
2100 Con_Printf("challenge %s received, sending QuakeWorld connect request back to %s\n", string + 1, addressstring2);
2102 M_Update_Return_Reason("Got QuakeWorld challenge response");
2104 cls.qw_qport = qport.integer;
2105 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
2106 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
2107 NetConn_WriteString(mysocket, va(vabuf, sizeof(vabuf), "\377\377\377\377connect %i %i %i \"%s%s\"\n", 28, cls.qw_qport, atoi(string + 1), cls.userinfo, cls.connect_userinfo), peeraddress);
2110 if (length >= 1 && string[0] == 'j' && cls.connect_trying)
2114 M_Update_Return_Reason("QuakeWorld Accepted");
2116 NetConn_ConnectionEstablished(mysocket, peeraddress, PROTOCOL_QUAKEWORLD);
2119 if (length > 2 && !memcmp(string, "n\\", 2))
2122 serverlist_info_t *info;
2126 if (serverlist_consoleoutput && developer_networking.integer >= 2)
2127 Con_Printf("QW server status from server at %s:\n%s\n", addressstring2, string + 1);
2130 // search the cache for this server and update it
2131 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
2135 info = &serverlist_cache[n].info;
2136 strlcpy(info->game, "QuakeWorld", sizeof(info->game));
2137 if ((s = InfoString_GetValue(string, "*gamedir" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0;
2138 if ((s = InfoString_GetValue(string, "map" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0;
2139 if ((s = InfoString_GetValue(string, "hostname" , infostringvalue, sizeof(infostringvalue))) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0;
2141 info->numplayers = 0; // updated below
2142 info->numhumans = 0; // updated below
2143 if ((s = InfoString_GetValue(string, "maxclients" , infostringvalue, sizeof(infostringvalue))) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0;
2144 if ((s = InfoString_GetValue(string, "gameversion" , infostringvalue, sizeof(infostringvalue))) != NULL) info->gameversion = atoi(s);else info->gameversion = 0;
2146 // count active players on server
2147 // (we could gather more info, but we're just after the number)
2148 s = strchr(string, '\n');
2152 while (s < string + length)
2154 for (;s < string + length && *s != '\n';s++)
2156 if (s >= string + length)
2164 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
2168 if (string[0] == 'n')
2171 Con_Printf("QW print command from server at %s:\n%s\n", addressstring2, string + 1);
2173 // we may not have liked the packet, but it was a command packet, so
2174 // we're done processing this packet now
2177 // quakeworld ingame packet
2178 if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
2181 CL_ParseServerMessage();
2184 // netquake control packets, supported for compatibility only
2185 if (length >= 5 && BuffBigLong(data) == ((int)NETFLAG_CTL | length) && !ENCRYPTION_REQUIRED)
2189 serverlist_info_t *info;
2194 SZ_Clear(&cl_message);
2195 SZ_Write(&cl_message, data, length);
2196 MSG_BeginReading(&cl_message);
2197 c = MSG_ReadByte(&cl_message);
2201 if (developer_extra.integer)
2202 Con_DPrintf("Datagram_ParseConnectionless: received CCREP_ACCEPT from %s.\n", addressstring2);
2203 if (cls.connect_trying)
2205 lhnetaddress_t clientportaddress;
2206 clientportaddress = *peeraddress;
2207 LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong(&cl_message));
2208 // extra ProQuake stuff
2210 cls.proquake_servermod = MSG_ReadByte(&cl_message); // MOD_PROQUAKE
2212 cls.proquake_servermod = 0;
2214 cls.proquake_serverversion = MSG_ReadByte(&cl_message); // version * 10
2216 cls.proquake_serverversion = 0;
2218 cls.proquake_serverflags = MSG_ReadByte(&cl_message); // flags (mainly PQF_CHEATFREE)
2220 cls.proquake_serverflags = 0;
2221 if (cls.proquake_servermod == 1)
2222 Con_Printf("Connected to ProQuake %.1f server, enabling precise aim\n", cls.proquake_serverversion / 10.0f);
2223 // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
2224 InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
2226 M_Update_Return_Reason("Accepted");
2228 NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE);
2232 if (developer_extra.integer)
2233 Con_DPrintf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2);
2234 cls.connect_trying = false;
2236 M_Update_Return_Reason((char *)MSG_ReadString(&cl_message, cl_readstring, sizeof(cl_readstring)));
2239 case CCREP_SERVER_INFO:
2240 if (developer_extra.integer)
2241 Con_DPrintf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2);
2243 // LordHavoc: because the quake server may report weird addresses
2244 // we just ignore it and keep the real address
2245 MSG_ReadString(&cl_message, cl_readstring, sizeof(cl_readstring));
2246 // search the cache for this server and update it
2247 n = NetConn_ClientParsePacket_ServerList_ProcessReply(addressstring2);
2251 info = &serverlist_cache[n].info;
2252 strlcpy(info->game, "Quake", sizeof(info->game));
2253 strlcpy(info->mod , "", sizeof(info->mod)); // mod name is not specified
2254 strlcpy(info->name, MSG_ReadString(&cl_message, cl_readstring, sizeof(cl_readstring)), sizeof(info->name));
2255 strlcpy(info->map , MSG_ReadString(&cl_message, cl_readstring, sizeof(cl_readstring)), sizeof(info->map));
2256 info->numplayers = MSG_ReadByte(&cl_message);
2257 info->maxplayers = MSG_ReadByte(&cl_message);
2258 info->protocol = MSG_ReadByte(&cl_message);
2260 NetConn_ClientParsePacket_ServerList_UpdateCache(n);
2263 case CCREP_RCON: // RocketGuy: ProQuake rcon support
2264 if (developer_extra.integer)
2265 Con_DPrintf("Datagram_ParseConnectionless: received CCREP_RCON from %s.\n", addressstring2);
2267 Con_Printf("%s\n", MSG_ReadString(&cl_message, cl_readstring, sizeof(cl_readstring)));
2269 case CCREP_PLAYER_INFO:
2270 // we got a CCREP_PLAYER_INFO??
2271 //if (developer_extra.integer)
2272 Con_Printf("Datagram_ParseConnectionless: received CCREP_PLAYER_INFO from %s.\n", addressstring2);
2274 case CCREP_RULE_INFO:
2275 // we got a CCREP_RULE_INFO??
2276 //if (developer_extra.integer)
2277 Con_Printf("Datagram_ParseConnectionless: received CCREP_RULE_INFO from %s.\n", addressstring2);
2282 SZ_Clear(&cl_message);
2283 // we may not have liked the packet, but it was a valid control
2284 // packet, so we're done processing this packet now
2288 if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2)
2289 CL_ParseServerMessage();
2294 void NetConn_QueryQueueFrame(void)
2300 static double querycounter = 0;
2302 if(!net_slist_pause.integer && serverlist_paused)
2303 ServerList_RebuildViewList();
2304 serverlist_paused = net_slist_pause.integer != 0;
2306 if (serverlist_querysleep)
2309 // apply a cool down time after master server replies,
2310 // to avoid messing up the ping times on the servers
2311 if (serverlist_querywaittime > realtime)
2314 // each time querycounter reaches 1.0 issue a query
2315 querycounter += cl.realframetime * net_slist_queriespersecond.value;
2316 maxqueries = (int)querycounter;
2317 maxqueries = bound(0, maxqueries, net_slist_queriesperframe.integer);
2318 querycounter -= maxqueries;
2320 if( maxqueries == 0 ) {
2324 // scan serverlist and issue queries as needed
2325 serverlist_querysleep = true;
2327 timeouttime = realtime - net_slist_timeout.value;
2328 for( index = 0, queries = 0 ; index < serverlist_cachecount && queries < maxqueries ; index++ )
2330 serverlist_entry_t *entry = &serverlist_cache[ index ];
2331 if( entry->query != SQS_QUERYING && entry->query != SQS_REFRESHING )
2336 serverlist_querysleep = false;
2337 if( entry->querycounter != 0 && entry->querytime > timeouttime )
2342 if( entry->querycounter != (unsigned) net_slist_maxtries.integer )
2344 lhnetaddress_t address;
2347 LHNETADDRESS_FromString(&address, entry->info.cname, 0);
2348 if (entry->protocol == PROTOCOL_QUAKEWORLD)
2350 for (socket = 0; socket < cl_numsockets ; socket++)
2351 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377status\n", &address);
2355 for (socket = 0; socket < cl_numsockets ; socket++)
2356 NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getstatus", &address);
2359 // update the entry fields
2360 entry->querytime = realtime;
2361 entry->querycounter++;
2363 // if not in the slist menu we should print the server to console
2364 if (serverlist_consoleoutput)
2365 Con_Printf("querying %25s (%i. try)\n", entry->info.cname, entry->querycounter);
2371 // have we tried to refresh this server?
2372 if( entry->query == SQS_REFRESHING ) {
2373 // yes, so update the reply count (since its not responding anymore)
2375 if(!serverlist_paused)
2376 ServerList_ViewList_Remove(entry);
2378 entry->query = SQS_TIMEDOUT;
2384 void NetConn_ClientFrame(void)
2387 lhnetaddress_t peeraddress;
2388 unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
2389 NetConn_UpdateSockets();
2390 if (cls.connect_trying && cls.connect_nextsendtime < realtime)
2393 if (cls.connect_remainingtries == 0)
2394 M_Update_Return_Reason("Connect: Waiting 10 seconds for reply");
2396 cls.connect_nextsendtime = realtime + 1;
2397 cls.connect_remainingtries--;
2398 if (cls.connect_remainingtries <= -10)
2400 cls.connect_trying = false;
2402 M_Update_Return_Reason("Connect: Failed");
2406 // try challenge first (newer DP server or QW)
2407 NetConn_WriteString(cls.connect_mysocket, "\377\377\377\377getchallenge", &cls.connect_address);
2408 // then try netquake as a fallback (old server, or netquake)
2409 SZ_Clear(&cl_message);
2410 // save space for the header, filled in later
2411 MSG_WriteLong(&cl_message, 0);
2412 MSG_WriteByte(&cl_message, CCREQ_CONNECT);
2413 MSG_WriteString(&cl_message, "QUAKE");
2414 MSG_WriteByte(&cl_message, NET_PROTOCOL_VERSION);
2415 // extended proquake stuff
2416 MSG_WriteByte(&cl_message, 1); // mod = MOD_PROQUAKE
2417 // this version matches ProQuake 3.40, the first version to support
2418 // the NAT fix, and it only supports the NAT fix for ProQuake 3.40 or
2419 // higher clients, so we pretend we are that version...
2420 MSG_WriteByte(&cl_message, 34); // version * 10
2421 MSG_WriteByte(&cl_message, 0); // flags
2422 MSG_WriteLong(&cl_message, 0); // password
2423 // write the packetsize now...
2424 StoreBigLong(cl_message.data, NETFLAG_CTL | (cl_message.cursize & NETFLAG_LENGTH_MASK));
2425 NetConn_Write(cls.connect_mysocket, cl_message.data, cl_message.cursize, &cls.connect_address);
2426 SZ_Clear(&cl_message);
2428 for (i = 0;i < cl_numsockets;i++)
2430 while (cl_sockets[i] && (length = NetConn_Read(cl_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
2432 // R_TimeReport("clientreadnetwork");
2433 NetConn_ClientParsePacket(cl_sockets[i], readbuffer, length, &peeraddress);
2434 // R_TimeReport("clientparsepacket");
2438 NetConn_QueryQueueFrame();
2440 if (cls.netcon && realtime > cls.netcon->timeout && !sv.active)
2442 Con_Print("Connection timed out\n");
2444 SV_LockThreadMutex();
2445 Host_ShutdownServer ();
2446 SV_UnlockThreadMutex();
2450 static void NetConn_BuildChallengeString(char *buffer, int bufferlength)
2454 for (i = 0;i < bufferlength - 1;i++)
2458 c = rand () % (127 - 33) + 33;
2459 } while (c == '\\' || c == ';' || c == '"' || c == '%' || c == '/');
2465 /// (div0) build the full response only if possible; better a getinfo response than no response at all if getstatus won't fit
2466 static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus)
2468 prvm_prog_t *prog = SVVM_prog;
2470 unsigned int nb_clients = 0, nb_bots = 0, i;
2473 const char *crypto_idstring;
2476 // How many clients are there?
2477 for (i = 0;i < (unsigned int)svs.maxclients;i++)
2479 if (svs.clients[i].active)
2482 if (!svs.clients[i].netconnection)
2488 str = PRVM_GetString(prog, PRVM_serverglobalstring(worldstatus));
2494 for(q = str; *q && (size_t)(p - qcstatus) < (sizeof(qcstatus) - 1); ++q)
2495 if(*q != '\\' && *q != '\n')
2500 /// \TODO: we should add more information for the full status string
2501 crypto_idstring = Crypto_GetInfoResponseDataString();
2502 length = dpsnprintf(out_msg, out_size,
2503 "\377\377\377\377%s\x0A"
2504 "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d"
2505 "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d"
2510 fullstatus ? "statusResponse" : "infoResponse",
2511 gamenetworkfiltername, com_modname, gameversion.integer, svs.maxclients,
2512 nb_clients, nb_bots, sv.worldbasename, hostname.string, NET_PROTOCOL_VERSION,
2513 *qcstatus ? "\\qcstatus\\" : "", qcstatus,
2514 challenge ? "\\challenge\\" : "", challenge ? challenge : "",
2515 crypto_idstring ? "\\d0_blind_id\\" : "", crypto_idstring ? crypto_idstring : "",
2516 fullstatus ? "\n" : "");
2518 // Make sure it fits in the buffer
2528 savelength = length;
2530 ptr = out_msg + length;
2531 left = (int)out_size - length;
2533 for (i = 0;i < (unsigned int)svs.maxclients;i++)
2535 client_t *cl = &svs.clients[i];
2538 int nameind, cleanind, pingvalue;
2540 char cleanname [sizeof(cl->name)];
2544 // Remove all characters '"' and '\' in the player name
2549 curchar = cl->name[nameind++];
2550 if (curchar != '"' && curchar != '\\')
2552 cleanname[cleanind++] = curchar;
2553 if (cleanind == sizeof(cleanname) - 1)
2556 } while (curchar != '\0');
2557 cleanname[cleanind] = 0; // cleanind is always a valid index even at this point
2559 pingvalue = (int)(cl->ping * 1000.0f);
2560 if(cl->netconnection)
2561 pingvalue = bound(1, pingvalue, 9999);
2566 ed = PRVM_EDICT_NUM(i + 1);
2567 str = PRVM_GetString(prog, PRVM_serveredictstring(ed, clientstatus));
2573 for(q = str; *q && p != qcstatus + sizeof(qcstatus) - 1; ++q)
2574 if(*q != '\\' && *q != '"' && !ISWHITESPACE(*q))
2579 if (IS_NEXUIZ_DERIVED(gamemode) && (teamplay.integer > 0))
2581 if(cl->frags == -666) // spectator
2582 strlcpy(teambuf, " 0", sizeof(teambuf));
2583 else if(cl->colors == 0x44) // red team
2584 strlcpy(teambuf, " 1", sizeof(teambuf));
2585 else if(cl->colors == 0xDD) // blue team
2586 strlcpy(teambuf, " 2", sizeof(teambuf));
2587 else if(cl->colors == 0xCC) // yellow team
2588 strlcpy(teambuf, " 3", sizeof(teambuf));
2589 else if(cl->colors == 0x99) // pink team
2590 strlcpy(teambuf, " 4", sizeof(teambuf));
2592 strlcpy(teambuf, " 0", sizeof(teambuf));
2597 // note: team number is inserted according to SoF2 protocol
2599 length = dpsnprintf(ptr, left, "%s %d%s \"%s\"\n",
2605 length = dpsnprintf(ptr, left, "%d %d%s \"%s\"\n",
2614 // turn it into an infoResponse!
2615 out_msg[savelength] = 0;
2616 memcpy(out_msg + 4, "infoResponse\x0A", 13);
2617 memmove(out_msg + 17, out_msg + 19, savelength - 19);
2632 static qboolean NetConn_PreventFlood(lhnetaddress_t *peeraddress, server_floodaddress_t *floodlist, size_t floodlength, double floodtime, qboolean renew)
2634 size_t floodslotnum, bestfloodslotnum;
2635 double bestfloodtime;
2636 lhnetaddress_t noportpeeraddress;
2637 // see if this is a connect flood
2638 noportpeeraddress = *peeraddress;
2639 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
2640 bestfloodslotnum = 0;
2641 bestfloodtime = floodlist[bestfloodslotnum].lasttime;
2642 for (floodslotnum = 0;floodslotnum < floodlength;floodslotnum++)
2644 if (bestfloodtime >= floodlist[floodslotnum].lasttime)
2646 bestfloodtime = floodlist[floodslotnum].lasttime;
2647 bestfloodslotnum = floodslotnum;
2649 if (floodlist[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &floodlist[floodslotnum].address) == 0)
2651 // this address matches an ongoing flood address
2652 if (realtime < floodlist[floodslotnum].lasttime + floodtime)
2656 // renew the ban on this address so it does not expire
2657 // until the flood has subsided
2658 floodlist[floodslotnum].lasttime = realtime;
2660 //Con_Printf("Flood detected!\n");
2663 // the flood appears to have subsided, so allow this
2664 bestfloodslotnum = floodslotnum; // reuse the same slot
2668 // begin a new timeout on this address
2669 floodlist[bestfloodslotnum].address = noportpeeraddress;
2670 floodlist[bestfloodslotnum].lasttime = realtime;
2671 //Con_Printf("Flood detection initiated!\n");
2675 void NetConn_ClearFlood(lhnetaddress_t *peeraddress, server_floodaddress_t *floodlist, size_t floodlength)
2677 size_t floodslotnum;
2678 lhnetaddress_t noportpeeraddress;
2679 // see if this is a connect flood
2680 noportpeeraddress = *peeraddress;
2681 LHNETADDRESS_SetPort(&noportpeeraddress, 0);
2682 for (floodslotnum = 0;floodslotnum < floodlength;floodslotnum++)
2684 if (floodlist[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &floodlist[floodslotnum].address) == 0)
2686 // this address matches an ongoing flood address
2688 floodlist[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE;
2689 floodlist[floodslotnum].lasttime = 0;
2690 //Con_Printf("Flood cleared!\n");
2695 typedef qboolean (*rcon_matchfunc_t) (lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen);
2697 static qboolean hmac_mdfour_time_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2702 t1 = (long) time(NULL);
2703 t2 = strtol(s, NULL, 0);
2704 if(abs(t1 - t2) > rcon_secure_maxdiff.integer)
2707 if(!HMAC_MDFOUR_16BYTES((unsigned char *) mdfourbuf, (unsigned char *) s, slen, (unsigned char *) password, (int)strlen(password)))
2710 return !memcmp(mdfourbuf, hash, 16);
2713 static qboolean hmac_mdfour_challenge_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2718 if(slen < (int)(sizeof(challenge[0].string)) - 1)
2721 // validate the challenge
2722 for (i = 0;i < MAX_CHALLENGES;i++)
2723 if(challenge[i].time > 0)
2724 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strncmp(challenge[i].string, s, sizeof(challenge[0].string) - 1))
2726 // if the challenge is not recognized, drop the packet
2727 if (i == MAX_CHALLENGES)
2730 if(!HMAC_MDFOUR_16BYTES((unsigned char *) mdfourbuf, (unsigned char *) s, slen, (unsigned char *) password, (int)strlen(password)))
2733 if(memcmp(mdfourbuf, hash, 16))
2736 // unmark challenge to prevent replay attacks
2737 challenge[i].time = 0;
2742 static qboolean plaintext_matching(lhnetaddress_t *peeraddress, const char *password, const char *hash, const char *s, int slen)
2744 return !strcmp(password, hash);
2747 /// returns a string describing the user level, or NULL for auth failure
2748 static 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)
2750 const char *text, *userpass_start, *userpass_end, *userpass_startpass;
2751 static char buf[MAX_INPUTLINE];
2753 qboolean restricted = false;
2754 qboolean have_usernames = false;
2755 static char vabuf[1024];
2757 userpass_start = rcon_password.string;
2758 while((userpass_end = strchr(userpass_start, ' ')))
2760 have_usernames = true;
2761 strlcpy(buf, userpass_start, ((size_t)(userpass_end-userpass_start) >= sizeof(buf)) ? (int)(sizeof(buf)) : (int)(userpass_end-userpass_start+1));
2763 if(comparator(peeraddress, buf, password, cs, cslen))
2765 userpass_start = userpass_end + 1;
2767 if(userpass_start[0])
2769 userpass_end = userpass_start + strlen(userpass_start);
2770 if(comparator(peeraddress, userpass_start, password, cs, cslen))
2775 have_usernames = false;
2776 userpass_start = rcon_restricted_password.string;
2777 while((userpass_end = strchr(userpass_start, ' ')))
2779 have_usernames = true;
2780 strlcpy(buf, userpass_start, ((size_t)(userpass_end-userpass_start) >= sizeof(buf)) ? (int)(sizeof(buf)) : (int)(userpass_end-userpass_start+1));
2782 if(comparator(peeraddress, buf, password, cs, cslen))
2784 userpass_start = userpass_end + 1;
2786 if(userpass_start[0])
2788 userpass_end = userpass_start + strlen(userpass_start);
2789 if(comparator(peeraddress, userpass_start, password, cs, cslen))
2793 return NULL; // DENIED
2796 for(text = s; text != endpos; ++text)
2797 if((signed char) *text > 0 && ((signed char) *text < (signed char) ' ' || *text == ';'))
2798 return NULL; // block possible exploits against the parser/alias expansion
2802 size_t l = strlen(s);
2805 hasquotes = (strchr(s, '"') != NULL);
2806 // sorry, we can't allow these substrings in wildcard expressions,
2807 // as they can mess with the argument counts
2808 text = rcon_restricted_commands.string;
2809 while(COM_ParseToken_Console(&text))
2811 // com_token now contains a pattern to check for...
2812 if(strchr(com_token, '*') || strchr(com_token, '?')) // wildcard expression, * can only match a SINGLE argument
2815 if(matchpattern_with_separator(s, com_token, true, " ", true)) // note how we excluded tab, newline etc. above
2818 else if(strchr(com_token, ' ')) // multi-arg expression? must match in whole
2820 if(!strcmp(com_token, s))
2823 else // single-arg expression? must match the beginning of the command
2825 if(!strcmp(com_token, s))
2827 if(!memcmp(va(vabuf, sizeof(vabuf), "%s ", com_token), s, strlen(com_token) + 1))
2831 // if we got here, nothing matched!
2839 userpass_startpass = strchr(userpass_start, ':');
2840 if(have_usernames && userpass_startpass && userpass_startpass < userpass_end)
2841 return va(vabuf, sizeof(vabuf), "%srcon (username %.*s)", restricted ? "restricted " : "", (int)(userpass_startpass-userpass_start), userpass_start);
2843 return va(vabuf, sizeof(vabuf), "%srcon", restricted ? "restricted " : "");
2846 static void RCon_Execute(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress, const char *addressstring2, const char *userlevel, const char *s, const char *endpos, qboolean proquakeprotocol)
2850 // looks like a legitimate rcon command with the correct password
2851 const char *s_ptr = s;
2852 Con_Printf("server received %s command from %s: ", userlevel, host_client ? host_client->name : addressstring2);
2853 while(s_ptr != endpos)
2855 size_t l = strlen(s_ptr);
2857 Con_Printf(" %s;", s_ptr);
2862 if (!host_client || !host_client->netconnection || LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
2863 Con_Rcon_Redirect_Init(mysocket, peeraddress, proquakeprotocol);
2866 size_t l = strlen(s);
2869 client_t *host_client_save = host_client;
2870 Cmd_ExecuteString(s, src_command, true);
2871 host_client = host_client_save;
2872 // in case it is a command that changes host_client (like restart)
2876 Con_Rcon_Redirect_End();
2880 Con_Printf("server denied rcon access to %s\n", host_client ? host_client->name : addressstring2);
2884 static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress)
2886 int i, ret, clientnum, best;
2889 char *s, *string, response[1400], addressstring2[128];
2890 static char stringbuf[16384]; // server only
2891 qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP);
2892 char senddata[NET_HEADERSIZE+NET_MAXMESSAGE+CRYPTO_HEADERSIZE];
2893 size_t sendlength, response_len;
2894 char infostringvalue[MAX_INPUTLINE];
2900 // convert the address to a string incase we need it
2901 LHNETADDRESS_ToString(peeraddress, addressstring2, sizeof(addressstring2), true);
2903 // see if we can identify the sender as a local player
2904 // (this is necessary for rcon to send a reliable reply if the client is
2905 // actually on the server, not sending remotely)
2906 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2907 if (host_client->netconnection && host_client->netconnection->mysocket == mysocket && !LHNETADDRESS_Compare(&host_client->netconnection->peeraddress, peeraddress))
2909 if (i == svs.maxclients)
2912 if (length >= 5 && data[0] == 255 && data[1] == 255 && data[2] == 255 && data[3] == 255)
2914 // received a command string - strip off the packaging and put it
2915 // into our string buffer with NULL termination
2918 length = min(length, (int)sizeof(stringbuf) - 1);
2919 memcpy(stringbuf, data, length);
2920 stringbuf[length] = 0;
2923 if (developer_extra.integer)
2925 Con_Printf("NetConn_ServerParsePacket: %s sent us a command:\n", addressstring2);
2926 Com_HexDumpToConsole(data, length);
2929 sendlength = sizeof(senddata) - 4;
2930 switch(Crypto_ServerParsePacket(string, length, senddata+4, &sendlength, peeraddress))
2932 case CRYPTO_NOMATCH:
2938 memcpy(senddata, "\377\377\377\377", 4);
2939 NetConn_Write(mysocket, senddata, (int)sendlength+4, peeraddress);
2942 case CRYPTO_DISCARD:
2945 memcpy(senddata, "\377\377\377\377", 4);
2946 NetConn_Write(mysocket, senddata, (int)sendlength+4, peeraddress);
2950 case CRYPTO_REPLACE:
2951 string = senddata+4;
2952 length = (int)sendlength;
2956 if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -3))
2958 for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++)
2960 if(challenge[i].time > 0)
2961 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address))
2963 if (besttime > challenge[i].time)
2964 besttime = challenge[best = i].time;
2966 // if we did not find an exact match, choose the oldest and
2967 // update address and string
2968 if (i == MAX_CHALLENGES)
2971 challenge[i].address = *peeraddress;
2972 NetConn_BuildChallengeString(challenge[i].string, sizeof(challenge[i].string));
2976 // flood control: drop if requesting challenge too often
2977 if(challenge[i].time > realtime - net_challengefloodblockingtimeout.value)
2980 challenge[i].time = realtime;
2981 // send the challenge
2982 dpsnprintf(response, sizeof(response), "\377\377\377\377challenge %s", challenge[i].string);
2983 response_len = strlen(response) + 1;
2984 Crypto_ServerAppendToChallenge(string, length, response, &response_len, sizeof(response));
2985 NetConn_Write(mysocket, response, (int)response_len, peeraddress);
2988 if (length > 8 && !memcmp(string, "connect\\", 8))
2990 crypto_t *crypto = Crypto_ServerGetInstance(peeraddress);
2994 if(crypto && crypto->authenticated)
2996 // no need to check challenge
2997 if(crypto_developer.integer)
2999 Con_Printf("%s connection to %s is being established: client is %s@%s%.*s, I am %.*s@%s%.*s\n",
3000 crypto->use_aes ? "Encrypted" : "Authenticated",
3002 crypto->client_idfp[0] ? crypto->client_idfp : "-",
3003 (crypto->client_issigned || !crypto->client_keyfp[0]) ? "" : "~",
3004 crypto_keyfp_recommended_length, crypto->client_keyfp[0] ? crypto->client_keyfp : "-",
3005 crypto_keyfp_recommended_length, crypto->server_idfp[0] ? crypto->server_idfp : "-",
3006 (crypto->server_issigned || !crypto->server_keyfp[0]) ? "" : "~",
3007 crypto_keyfp_recommended_length, crypto->server_keyfp[0] ? crypto->server_keyfp : "-"
3013 if ((s = InfoString_GetValue(string, "challenge", infostringvalue, sizeof(infostringvalue))))
3015 // validate the challenge
3016 for (i = 0;i < MAX_CHALLENGES;i++)
3017 if(challenge[i].time > 0)
3018 if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s))
3020 // if the challenge is not recognized, drop the packet
3021 if (i == MAX_CHALLENGES)
3026 if((s = InfoString_GetValue(string, "message", infostringvalue, sizeof(infostringvalue))))
3027 Con_DPrintf("Connecting client %s sent us the message: %s\n", addressstring2, s);
3029 if(!(islocal || sv_public.integer > -2))
3031 if (developer_extra.integer)
3032 Con_Printf("Datagram_ParseConnectionless: sending \"reject %s\" to %s.\n", sv_public_rejectreason.string, addressstring2);
3033 NetConn_WriteString(mysocket, va(vabuf, sizeof(vabuf), "\377\377\377\377reject %s", sv_public_rejectreason.string), peeraddress);
3037 // check engine protocol
3038 if(!(s = InfoString_GetValue(string, "protocol", infostringvalue, sizeof(infostringvalue))) || strcmp(s, "darkplaces 3"))
3040 if (developer_extra.integer)
3041 Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2);
3042 NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress);
3046 // see if this is a duplicate connection request or a disconnected
3047 // client who is rejoining to the same client slot
3048 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
3050 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
3052 // this is a known client...
3053 if(crypto && crypto->authenticated)
3055 // reject if changing key!
3056 if(client->netconnection->crypto.authenticated)
3059 strcmp(client->netconnection->crypto.client_idfp, crypto->client_idfp)
3061 strcmp(client->netconnection->crypto.server_idfp, crypto->server_idfp)
3063 strcmp(client->netconnection->crypto.client_keyfp, crypto->client_keyfp)
3065 strcmp(client->netconnection->crypto.server_keyfp, crypto->server_keyfp)
3068 if (developer_extra.integer)
3069 Con_Printf("Datagram_ParseConnectionless: sending \"reject Attempt to change key of crypto.\" to %s.\n", addressstring2);
3070 NetConn_WriteString(mysocket, "\377\377\377\377reject Attempt to change key of crypto.", peeraddress);
3077 // reject if downgrading!
3078 if(client->netconnection->crypto.authenticated)
3080 if (developer_extra.integer)
3081 Con_Printf("Datagram_ParseConnectionless: sending \"reject Attempt to downgrade crypto.\" to %s.\n", addressstring2);
3082 NetConn_WriteString(mysocket, "\377\377\377\377reject Attempt to downgrade crypto.", peeraddress);
3088 // client crashed and is coming back,
3089 // keep their stuff intact
3090 if (developer_extra.integer)
3091 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2);
3092 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
3093 if(crypto && crypto->authenticated)
3094 Crypto_FinishInstance(&client->netconnection->crypto, crypto);
3095 SV_SendServerinfo(client);
3099 // client is still trying to connect,
3100 // so we send a duplicate reply
3101 if (developer_extra.integer)
3102 Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2);
3103 if(crypto && crypto->authenticated)
3104 Crypto_FinishInstance(&client->netconnection->crypto, crypto);
3105 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
3111 if (NetConn_PreventFlood(peeraddress, sv.connectfloodaddresses, sizeof(sv.connectfloodaddresses) / sizeof(sv.connectfloodaddresses[0]), net_connectfloodblockingtimeout.value, true))
3114 // find an empty client slot for this new client
3115 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
3118 if (!client->active && (conn = NetConn_Open(mysocket, peeraddress)))
3120 // allocated connection
3121 if (developer_extra.integer)
3122 Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address);
3123 NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress);
3124 // now set up the client
3125 if(crypto && crypto->authenticated)
3126 Crypto_FinishInstance(&conn->crypto, crypto);
3127 SV_ConnectClient(clientnum, conn);
3128 NetConn_Heartbeat(1);
3133 // no empty slots found - server is full
3134 if (developer_extra.integer)
3135 Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2);
3136 NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress);
3140 if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1))
3142 const char *challenge = NULL;
3144 if (NetConn_PreventFlood(peeraddress, sv.getstatusfloodaddresses, sizeof(sv.getstatusfloodaddresses) / sizeof(sv.getstatusfloodaddresses[0]), net_getstatusfloodblockingtimeout.value, false))
3147 // If there was a challenge in the getinfo message
3148 if (length > 8 && string[7] == ' ')
3149 challenge = string + 8;
3151 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), false))
3153 if (developer_extra.integer)
3154 Con_DPrintf("Sending reply to master %s - %s\n", addressstring2, response);
3155 NetConn_WriteString(mysocket, response, peeraddress);
3159 if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1))
3161 const char *challenge = NULL;
3163 if (NetConn_PreventFlood(peeraddress, sv.getstatusfloodaddresses, sizeof(sv.getstatusfloodaddresses) / sizeof(sv.getstatusfloodaddresses[0]), net_getstatusfloodblockingtimeout.value, false))
3166 // If there was a challenge in the getinfo message
3167 if (length > 10 && string[9] == ' ')
3168 challenge = string + 10;
3170 if (NetConn_BuildStatusResponse(challenge, response, sizeof(response), true))
3172 if (developer_extra.integer)
3173 Con_DPrintf("Sending reply to client %s - %s\n", addressstring2, response);
3174 NetConn_WriteString(mysocket, response, peeraddress);
3178 if (length >= 37 && !memcmp(string, "srcon HMAC-MD4 TIME ", 20))
3180 char *password = string + 20;
3181 char *timeval = string + 37;
3182 char *s = strchr(timeval, ' ');
3183 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
3184 const char *userlevel;
3186 if(rcon_secure.integer > 1)
3190 return true; // invalid packet
3193 userlevel = RCon_Authenticate(peeraddress, password, s, endpos, hmac_mdfour_time_matching, timeval, endpos - timeval - 1); // not including the appended \0 into the HMAC
3194 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos, false);
3197 if (length >= 42 && !memcmp(string, "srcon HMAC-MD4 CHALLENGE ", 25))
3199 char *password = string + 25;
3200 char *challenge = string + 42;
3201 char *s = strchr(challenge, ' ');
3202 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
3203 const char *userlevel;
3205 return true; // invalid packet
3208 userlevel = RCon_Authenticate(peeraddress, password, s, endpos, hmac_mdfour_challenge_matching, challenge, endpos - challenge - 1); // not including the appended \0 into the HMAC
3209 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos, false);
3212 if (length >= 5 && !memcmp(string, "rcon ", 5))
3215 char *s = string + 5;
3216 char *endpos = string + length + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
3219 if(rcon_secure.integer > 0)
3222 for (i = 0;!ISWHITESPACE(*s);s++)
3223 if (i < (int)sizeof(password) - 1)
3225 if(ISWHITESPACE(*s) && s != endpos) // skip leading ugly space
3228 if (!ISWHITESPACE(password[0]))
3230 const char *userlevel = RCon_Authenticate(peeraddress, password, s, endpos, plaintext_matching, NULL, 0);
3231 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos, false);
3235 if (!strncmp(string, "extResponse ", 12))
3237 ++sv_net_extresponse_count;
3238 if(sv_net_extresponse_count > NET_EXTRESPONSE_MAX)
3239 sv_net_extresponse_count = NET_EXTRESPONSE_MAX;
3240 sv_net_extresponse_last = (sv_net_extresponse_last + 1) % NET_EXTRESPONSE_MAX;
3241 dpsnprintf(sv_net_extresponse[sv_net_extresponse_last], sizeof(sv_net_extresponse[sv_net_extresponse_last]), "'%s' %s", addressstring2, string + 12);
3244 if (!strncmp(string, "ping", 4))
3246 if (developer_extra.integer)
3247 Con_DPrintf("Received ping from %s, sending ack\n", addressstring2);
3248 NetConn_WriteString(mysocket, "\377\377\377\377ack", peeraddress);
3251 if (!strncmp(string, "ack", 3))
3253 // we may not have liked the packet, but it was a command packet, so
3254 // we're done processing this packet now
3257 // netquake control packets, supported for compatibility only, and only
3258 // when running game protocols that are normally served via this connection
3260 // (this protects more modern protocols against being used for
3261 // Quake packet flood Denial Of Service attacks)
3262 if (length >= 5 && (i = BuffBigLong(data)) && (i & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (i & NETFLAG_LENGTH_MASK) == length && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3) && !ENCRYPTION_REQUIRED)
3266 const char *protocolname;
3269 SZ_Clear(&sv_message);
3270 SZ_Write(&sv_message, data, length);
3271 MSG_BeginReading(&sv_message);
3272 c = MSG_ReadByte(&sv_message);
3276 if (developer_extra.integer)
3277 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2);
3278 if(!(islocal || sv_public.integer > -2))
3280 if (developer_extra.integer)
3281 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_REJECT \"%s\" to %s.\n", sv_public_rejectreason.string, addressstring2);
3282 SZ_Clear(&sv_message);
3283 // save space for the header, filled in later
3284 MSG_WriteLong(&sv_message, 0);
3285 MSG_WriteByte(&sv_message, CCREP_REJECT);
3286 MSG_WriteString(&sv_message, va(vabuf, sizeof(vabuf), "%s\n", sv_public_rejectreason.string));
3287 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3288 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3289 SZ_Clear(&sv_message);
3293 protocolname = MSG_ReadString(&sv_message, sv_readstring, sizeof(sv_readstring));
3294 protocolnumber = MSG_ReadByte(&sv_message);
3295 if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION)
3297 if (developer_extra.integer)
3298 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2);
3299 SZ_Clear(&sv_message);
3300 // save space for the header, filled in later
3301 MSG_WriteLong(&sv_message, 0);
3302 MSG_WriteByte(&sv_message, CCREP_REJECT);
3303 MSG_WriteString(&sv_message, "Incompatible version.\n");
3304 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3305 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3306 SZ_Clear(&sv_message);
3310 // see if this connect request comes from a known client
3311 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
3313 if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0)
3315 // this is either a duplicate connection request
3316 // or coming back from a timeout
3317 // (if so, keep their stuff intact)
3319 crypto_t *crypto = Crypto_ServerGetInstance(peeraddress);
3320 if((crypto && crypto->authenticated) || client->netconnection->crypto.authenticated)
3322 if (developer_extra.integer)
3323 Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Attempt to downgrade crypto.\" to %s.\n", addressstring2);
3324 SZ_Clear(&sv_message);
3325 // save space for the header, filled in later
3326 MSG_WriteLong(&sv_message, 0);
3327 MSG_WriteByte(&sv_message, CCREP_REJECT);
3328 MSG_WriteString(&sv_message, "Attempt to downgrade crypto.\n");
3329 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3330 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3331 SZ_Clear(&sv_message);
3336 if (developer_extra.integer)
3337 Con_DPrintf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2);
3338 SZ_Clear(&sv_message);
3339 // save space for the header, filled in later
3340 MSG_WriteLong(&sv_message, 0);
3341 MSG_WriteByte(&sv_message, CCREP_ACCEPT);
3342 MSG_WriteLong(&sv_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket)));
3343 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3344 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3345 SZ_Clear(&sv_message);
3347 // if client is already spawned, re-send the
3348 // serverinfo message as they'll need it to play
3350 SV_SendServerinfo(client);
3355 // this is a new client, check for connection flood
3356 if (NetConn_PreventFlood(peeraddress, sv.connectfloodaddresses, sizeof(sv.connectfloodaddresses) / sizeof(sv.connectfloodaddresses[0]), net_connectfloodblockingtimeout.value, true))
3359 // find a slot for the new client
3360 for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++)
3363 if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL)
3365 // connect to the client
3366 // everything is allocated, just fill in the details
3367 strlcpy (conn->address, addressstring2, sizeof (conn->address));
3368 if (developer_extra.integer)
3369 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2);
3370 // send back the info about the server connection
3371 SZ_Clear(&sv_message);
3372 // save space for the header, filled in later
3373 MSG_WriteLong(&sv_message, 0);
3374 MSG_WriteByte(&sv_message, CCREP_ACCEPT);
3375 MSG_WriteLong(&sv_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket)));
3376 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3377 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3378 SZ_Clear(&sv_message);
3379 // now set up the client struct
3380 SV_ConnectClient(clientnum, conn);
3381 NetConn_Heartbeat(1);
3386 if (developer_extra.integer)
3387 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2);
3388 // no room; try to let player know
3389 SZ_Clear(&sv_message);
3390 // save space for the header, filled in later
3391 MSG_WriteLong(&sv_message, 0);
3392 MSG_WriteByte(&sv_message, CCREP_REJECT);
3393 MSG_WriteString(&sv_message, "Server is full.\n");
3394 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3395 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3396 SZ_Clear(&sv_message);
3398 case CCREQ_SERVER_INFO:
3399 if (developer_extra.integer)
3400 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2);
3401 if(!(islocal || sv_public.integer > -1))
3404 if (NetConn_PreventFlood(peeraddress, sv.getstatusfloodaddresses, sizeof(sv.getstatusfloodaddresses) / sizeof(sv.getstatusfloodaddresses[0]), net_getstatusfloodblockingtimeout.value, false))
3407 if (sv.active && !strcmp(MSG_ReadString(&sv_message, sv_readstring, sizeof(sv_readstring)), "QUAKE"))
3410 char myaddressstring[128];
3411 if (developer_extra.integer)
3412 Con_DPrintf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2);
3413 SZ_Clear(&sv_message);
3414 // save space for the header, filled in later
3415 MSG_WriteLong(&sv_message, 0);
3416 MSG_WriteByte(&sv_message, CCREP_SERVER_INFO);
3417 LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true);
3418 MSG_WriteString(&sv_message, myaddressstring);
3419 MSG_WriteString(&sv_message, hostname.string);
3420 MSG_WriteString(&sv_message, sv.name);
3421 // How many clients are there?
3422 for (i = 0, numclients = 0;i < svs.maxclients;i++)
3423 if (svs.clients[i].active)
3425 MSG_WriteByte(&sv_message, numclients);
3426 MSG_WriteByte(&sv_message, svs.maxclients);
3427 MSG_WriteByte(&sv_message, NET_PROTOCOL_VERSION);
3428 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3429 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3430 SZ_Clear(&sv_message);
3433 case CCREQ_PLAYER_INFO:
3434 if (developer_extra.integer)
3435 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2);
3436 if(!(islocal || sv_public.integer > -1))
3439 if (NetConn_PreventFlood(peeraddress, sv.getstatusfloodaddresses, sizeof(sv.getstatusfloodaddresses) / sizeof(sv.getstatusfloodaddresses[0]), net_getstatusfloodblockingtimeout.value, false))
3444 int playerNumber, activeNumber, clientNumber;
3447 playerNumber = MSG_ReadByte(&sv_message);
3449 for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
3450 if (client->active && ++activeNumber == playerNumber)
3452 if (clientNumber != svs.maxclients)
3454 SZ_Clear(&sv_message);
3455 // save space for the header, filled in later
3456 MSG_WriteLong(&sv_message, 0);
3457 MSG_WriteByte(&sv_message, CCREP_PLAYER_INFO);
3458 MSG_WriteByte(&sv_message, playerNumber);
3459 MSG_WriteString(&sv_message, client->name);
3460 MSG_WriteLong(&sv_message, client->colors);
3461 MSG_WriteLong(&sv_message, client->frags);
3462 MSG_WriteLong(&sv_message, (int)(realtime - client->connecttime));
3463 if(sv_status_privacy.integer)
3464 MSG_WriteString(&sv_message, client->netconnection ? "hidden" : "botclient");
3466 MSG_WriteString(&sv_message, client->netconnection ? client->netconnection->address : "botclient");
3467 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3468 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3469 SZ_Clear(&sv_message);
3473 case CCREQ_RULE_INFO:
3474 if (developer_extra.integer)
3475 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2);
3476 if(!(islocal || sv_public.integer > -1))
3479 // no flood check here, as it only returns one cvar for one cvar and clients may iterate quickly
3486 // find the search start location
3487 prevCvarName = MSG_ReadString(&sv_message, sv_readstring, sizeof(sv_readstring));
3488 var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY);
3490 // send the response
3491 SZ_Clear(&sv_message);
3492 // save space for the header, filled in later
3493 MSG_WriteLong(&sv_message, 0);
3494 MSG_WriteByte(&sv_message, CCREP_RULE_INFO);
3497 MSG_WriteString(&sv_message, var->name);
3498 MSG_WriteString(&sv_message, var->string);
3500 StoreBigLong(sv_message.data, NETFLAG_CTL | (sv_message.cursize & NETFLAG_LENGTH_MASK));
3501 NetConn_Write(mysocket, sv_message.data, sv_message.cursize, peeraddress);
3502 SZ_Clear(&sv_message);
3506 if (developer_extra.integer)
3507 Con_DPrintf("Datagram_ParseConnectionless: received CCREQ_RCON from %s.\n", addressstring2);
3508 if (sv.active && !rcon_secure.integer)
3510 char password[2048];
3514 const char *userlevel;
3515 strlcpy(password, MSG_ReadString(&sv_message, sv_readstring, sizeof(sv_readstring)), sizeof(password));
3516 strlcpy(cmd, MSG_ReadString(&sv_message, sv_readstring, sizeof(sv_readstring)), sizeof(cmd));
3518 endpos = cmd + strlen(cmd) + 1; // one behind the NUL, so adding strlen+1 will eventually reach it
3519 userlevel = RCon_Authenticate(peeraddress, password, s, endpos, plaintext_matching, NULL, 0);
3520 RCon_Execute(mysocket, peeraddress, addressstring2, userlevel, s, endpos, true);
3527 SZ_Clear(&sv_message);
3528 // we may not have liked the packet, but it was a valid control
3529 // packet, so we're done processing this packet now
3534 if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->begun ? net_messagetimeout.value : net_connecttimeout.value)) == 2)
3536 SV_ReadClientMessage();
3543 void NetConn_ServerFrame(void)
3546 lhnetaddress_t peeraddress;
3547 unsigned char readbuffer[NET_HEADERSIZE+NET_MAXMESSAGE];
3548 for (i = 0;i < sv_numsockets;i++)
3549 while (sv_sockets[i] && (length = NetConn_Read(sv_sockets[i], readbuffer, sizeof(readbuffer), &peeraddress)) > 0)
3550 NetConn_ServerParsePacket(sv_sockets[i], readbuffer, length, &peeraddress);
3551 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
3553 // never timeout loopback connections
3554 if (host_client->netconnection && realtime > host_client->netconnection->timeout && LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) != LHNETADDRESSTYPE_LOOP)
3556 Con_Printf("Client \"%s\" connection timed out\n", host_client->name);
3557 SV_DropClient(false);
3562 void NetConn_SleepMicroseconds(int microseconds)
3564 LHNET_SleepUntilPacket_Microseconds(microseconds);
3568 void NetConn_QueryMasters(qboolean querydp, qboolean queryqw)
3572 lhnetaddress_t masteraddress;
3573 lhnetaddress_t broadcastaddress;
3576 if (serverlist_cachecount >= SERVERLIST_TOTALSIZE)
3579 // 26000 is the default quake server port, servers on other ports will not
3581 // note this is IPv4-only, I doubt there are IPv6-only LANs out there
3582 LHNETADDRESS_FromString(&broadcastaddress, "255.255.255.255", 26000);
3586 for (i = 0;i < cl_numsockets;i++)
3590 const char *cmdname, *extraoptions;
3591 int af = LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i]));
3593 if(LHNETADDRESS_GetAddressType(&broadcastaddress) == af)
3595 // search LAN for Quake servers
3596 SZ_Clear(&cl_message);
3597 // save space for the header, filled in later
3598 MSG_WriteLong(&cl_message, 0);
3599 MSG_WriteByte(&cl_message, CCREQ_SERVER_INFO);
3600 MSG_WriteString(&cl_message, "QUAKE");
3601 MSG_WriteByte(&cl_message, NET_PROTOCOL_VERSION);
3602 StoreBigLong(cl_message.data, NETFLAG_CTL | (cl_message.cursize & NETFLAG_LENGTH_MASK));
3603 NetConn_Write(cl_sockets[i], cl_message.data, cl_message.cursize, &broadcastaddress);
3604 SZ_Clear(&cl_message);
3606 // search LAN for DarkPlaces servers
3607 NetConn_WriteString(cl_sockets[i], "\377\377\377\377getstatus", &broadcastaddress);
3610 // build the getservers message to send to the dpmaster master servers
3611 if (LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])) == LHNETADDRESSTYPE_INET6)
3613 cmdname = "getserversExt";
3614 extraoptions = " ipv4 ipv6"; // ask for IPv4 and IPv6 servers
3618 cmdname = "getservers";
3621 dpsnprintf(request, sizeof(request), "\377\377\377\377%s %s %u empty full%s", cmdname, gamenetworkfiltername, NET_PROTOCOL_VERSION, extraoptions);
3624 for (masternum = 0;sv_masters[masternum].name;masternum++)
3626 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == af)
3629 NetConn_WriteString(cl_sockets[i], request, &masteraddress);
3633 // search favorite servers
3634 for(j = 0; j < nFavorites; ++j)
3636 if(LHNETADDRESS_GetAddressType(&favorites[j]) == af)
3638 if(LHNETADDRESS_ToString(&favorites[j], request, sizeof(request), true))
3639 NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_DARKPLACES7, request, true );
3646 // only query QuakeWorld servers when the user wants to
3649 for (i = 0;i < cl_numsockets;i++)
3653 int af = LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i]));
3655 if(LHNETADDRESS_GetAddressType(&broadcastaddress) == af)
3657 // search LAN for QuakeWorld servers
3658 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &broadcastaddress);
3660 // build the getservers message to send to the qwmaster master servers
3661 // note this has no -1 prefix, and the trailing nul byte is sent
3662 dpsnprintf(request, sizeof(request), "c\n");
3666 for (masternum = 0;sv_qwmasters[masternum].name;masternum++)
3668 if (sv_qwmasters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_qwmasters[masternum].string, QWMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i])))
3670 if (m_state != m_slist)
3672 char lookupstring[128];
3673 LHNETADDRESS_ToString(&masteraddress, lookupstring, sizeof(lookupstring), true);
3674 Con_Printf("Querying master %s (resolved from %s)\n", lookupstring, sv_qwmasters[masternum].string);
3677 NetConn_Write(cl_sockets[i], request, (int)strlen(request) + 1, &masteraddress);
3681 // search favorite servers
3682 for(j = 0; j < nFavorites; ++j)
3684 if(LHNETADDRESS_GetAddressType(&favorites[j]) == af)
3686 if(LHNETADDRESS_ToString(&favorites[j], request, sizeof(request), true))
3688 NetConn_WriteString(cl_sockets[i], "\377\377\377\377status\n", &favorites[j]);
3689 NetConn_ClientParsePacket_ServerList_PrepareQuery( PROTOCOL_QUAKEWORLD, request, true );
3696 if (!masterquerycount)
3698 Con_Print("Unable to query master servers, no suitable network sockets active.\n");
3699 M_Update_Return_Reason("No network");
3704 void NetConn_Heartbeat(int priority)
3706 lhnetaddress_t masteraddress;
3708 lhnetsocket_t *mysocket;
3710 // if it's a state change (client connected), limit next heartbeat to no
3711 // more than 30 sec in the future
3712 if (priority == 1 && nextheartbeattime > realtime + 30.0)
3713 nextheartbeattime = realtime + 30.0;
3715 // limit heartbeatperiod to 30 to 270 second range,
3716 // lower limit is to avoid abusing master servers with excess traffic,
3717 // upper limit is to avoid timing out on the master server (which uses
3719 if (sv_heartbeatperiod.value < 30)
3720 Cvar_SetValueQuick(&sv_heartbeatperiod, 30);
3721 if (sv_heartbeatperiod.value > 270)
3722 Cvar_SetValueQuick(&sv_heartbeatperiod, 270);
3724 // make advertising optional and don't advertise singleplayer games, and
3725 // only send a heartbeat as often as the admin wants
3726 if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime))
3728 nextheartbeattime = realtime + sv_heartbeatperiod.value;
3729 for (masternum = 0;sv_masters[masternum].name;masternum++)
3730 if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress)))
3731 NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress);
3735 static void Net_Heartbeat_f(void)
3738 NetConn_Heartbeat(2);
3740 Con_Print("No server running, can not heartbeat to master server.\n");
3743 static void PrintStats(netconn_t *conn)
3745 if ((cls.state == ca_connected && cls.protocol == PROTOCOL_QUAKEWORLD) || (sv.active && sv.protocol == PROTOCOL_QUAKEWORLD))
3746 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->outgoing_unreliable_sequence, conn->qw.incoming_sequence);
3748 Con_Printf("address=%21s canSend=%u sendSeq=%6u recvSeq=%6u\n", conn->address, !conn->sendMessageLength, conn->nq.sendSequence, conn->nq.receiveSequence);
3749 Con_Printf("unreliable messages sent = %i\n", conn->unreliableMessagesSent);
3750 Con_Printf("unreliable messages recv = %i\n", conn->unreliableMessagesReceived);
3751 Con_Printf("reliable messages sent = %i\n", conn->reliableMessagesSent);
3752 Con_Printf("reliable messages received = %i\n", conn->reliableMessagesReceived);
3753 Con_Printf("packetsSent = %i\n", conn->packetsSent);
3754 Con_Printf("packetsReSent = %i\n", conn->packetsReSent);
3755 Con_Printf("packetsReceived = %i\n", conn->packetsReceived);
3756 Con_Printf("receivedDuplicateCount = %i\n", conn->receivedDuplicateCount);
3757 Con_Printf("droppedDatagrams = %i\n", conn->droppedDatagrams);
3760 void Net_Stats_f(void)
3763 Con_Print("connections =\n");
3764 for (conn = netconn_list;conn;conn = conn->next)
3769 void Net_Refresh_f(void)
3771 if (m_state != m_slist) {
3772 Con_Print("Sending new requests to master servers\n");
3773 ServerList_QueryList(false, true, false, true);
3774 Con_Print("Listening for replies...\n");
3776 ServerList_QueryList(false, true, false, false);
3779 void Net_Slist_f(void)
3781 ServerList_ResetMasks();
3782 serverlist_sortbyfield = SLIF_PING;
3783 serverlist_sortflags = 0;
3784 if (m_state != m_slist) {
3785 Con_Print("Sending requests to master servers\n");
3786 ServerList_QueryList(true, true, false, true);
3787 Con_Print("Listening for replies...\n");
3789 ServerList_QueryList(true, true, false, false);
3792 void Net_SlistQW_f(void)
3794 ServerList_ResetMasks();
3795 serverlist_sortbyfield = SLIF_PING;
3796 serverlist_sortflags = 0;
3797 if (m_state != m_slist) {
3798 Con_Print("Sending requests to master servers\n");
3799 ServerList_QueryList(true, false, true, true);
3800 serverlist_consoleoutput = true;
3801 Con_Print("Listening for replies...\n");
3803 ServerList_QueryList(true, false, true, false);
3807 void NetConn_Init(void)
3810 lhnetaddress_t tempaddress;
3811 netconn_mempool = Mem_AllocPool("network connections", 0, NULL);
3812 Cmd_AddCommand("net_stats", Net_Stats_f, "print network statistics");
3814 Cmd_AddCommand("net_slist", Net_Slist_f, "query dp master servers and print all server information");
3815 Cmd_AddCommand("net_slistqw", Net_SlistQW_f, "query qw master servers and print all server information");
3816 Cmd_AddCommand("net_refresh", Net_Refresh_f, "query dp master servers and refresh all server information");
3818 Cmd_AddCommand("heartbeat", Net_Heartbeat_f, "send a heartbeat to the master server (updates your server information)");
3819 Cvar_RegisterVariable(&net_test);
3820 Cvar_RegisterVariable(&net_usesizelimit);
3821 Cvar_RegisterVariable(&net_burstreserve);
3822 Cvar_RegisterVariable(&rcon_restricted_password);
3823 Cvar_RegisterVariable(&rcon_restricted_commands);
3824 Cvar_RegisterVariable(&rcon_secure_maxdiff);
3825 Cvar_RegisterVariable(&net_slist_queriespersecond);
3826 Cvar_RegisterVariable(&net_slist_queriesperframe);
3827 Cvar_RegisterVariable(&net_slist_timeout);
3828 Cvar_RegisterVariable(&net_slist_maxtries);
3829 Cvar_RegisterVariable(&net_slist_favorites);
3830 Cvar_RegisterVariable(&net_slist_pause);
3831 if(LHNET_DefaultDSCP(-1) >= 0) // register cvar only if supported
3832 Cvar_RegisterVariable(&net_tos_dscp);
3833 Cvar_RegisterVariable(&net_messagetimeout);
3834 Cvar_RegisterVariable(&net_connecttimeout);
3835 Cvar_RegisterVariable(&net_connectfloodblockingtimeout);
3836 Cvar_RegisterVariable(&net_challengefloodblockingtimeout);
3837 Cvar_RegisterVariable(&net_getstatusfloodblockingtimeout);
3838 Cvar_RegisterVariable(&cl_netlocalping);
3839 Cvar_RegisterVariable(&cl_netpacketloss_send);
3840 Cvar_RegisterVariable(&cl_netpacketloss_receive);
3841 Cvar_RegisterVariable(&hostname);
3842 Cvar_RegisterVariable(&developer_networking);
3843 Cvar_RegisterVariable(&cl_netport);
3844 Cvar_RegisterVariable(&sv_netport);
3845 Cvar_RegisterVariable(&net_address);
3846 Cvar_RegisterVariable(&net_address_ipv6);
3847 Cvar_RegisterVariable(&sv_public);
3848 Cvar_RegisterVariable(&sv_public_rejectreason);
3849 Cvar_RegisterVariable(&sv_heartbeatperiod);
3850 for (i = 0;sv_masters[i].name;i++)
3851 Cvar_RegisterVariable(&sv_masters[i]);
3852 Cvar_RegisterVariable(&gameversion);
3853 Cvar_RegisterVariable(&gameversion_min);
3854 Cvar_RegisterVariable(&gameversion_max);
3855 // 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.
3856 if ((i = COM_CheckParm("-ip")) && i + 1 < com_argc)
3858 if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1)
3860 Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]);
3861 Cvar_SetQuick(&net_address, com_argv[i + 1]);
3864 Con_Printf("-ip option used, but unable to parse the address \"%s\"\n", com_argv[i + 1]);
3866 // 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
3867 if (((i = COM_CheckParm("-port")) || (i = COM_CheckParm("-ipport")) || (i = COM_CheckParm("-udpport"))) && i + 1 < com_argc)
3869 i = atoi(com_argv[i + 1]);
3870 if (i >= 0 && i < 65536)
3872 Con_Printf("-port option used, setting port cvar to %i\n", i);
3873 Cvar_SetValueQuick(&sv_netport, i);
3876 Con_Printf("-port option used, but %i is not a valid port number\n", i);
3880 cl_message.data = cl_message_buf;
3881 cl_message.maxsize = sizeof(cl_message_buf);
3882 cl_message.cursize = 0;
3883 sv_message.data = sv_message_buf;
3884 sv_message.maxsize = sizeof(sv_message_buf);
3885 sv_message.cursize = 0;
3887 if (Thread_HasThreads())
3888 netconn_mutex = Thread_CreateMutex();
3891 void NetConn_Shutdown(void)
3893 NetConn_CloseClientPorts();
3894 NetConn_CloseServerPorts();
3897 Thread_DestroyMutex(netconn_mutex);
3898 netconn_mutex = NULL;