//*****************************************************************************
//
void SERVER_AUTH_Negotiate ( const char *Username, const unsigned int ClientSessionID )
{
NETWORK_ClearBuffer( &g_AuthServerBuffer );
NETWORK_WriteLong( &g_AuthServerBuffer.ByteStream, SERVER_AUTH_NEGOTIATE );
NETWORK_WriteByte( &g_AuthServerBuffer.ByteStream, AUTH_PROTOCOL_VERSION );
NETWORK_WriteLong( &g_AuthServerBuffer.ByteStream, ClientSessionID);
NETWORK_WriteString( &g_AuthServerBuffer.ByteStream, Username );
NETWORK_LaunchPacket( &g_AuthServerBuffer, g_AuthServerAddress );
}
//*****************************************************************************
//
void SERVER_AUTH_SRPMessage ( const int MagicNumber, const int SessionID, const TArray<unsigned char> &Bytes )
{
NETWORK_ClearBuffer( &g_AuthServerBuffer );
NETWORK_WriteLong( &g_AuthServerBuffer.ByteStream, MagicNumber );
NETWORK_WriteLong( &g_AuthServerBuffer.ByteStream, SessionID );
NETWORK_WriteShort( &g_AuthServerBuffer.ByteStream, Bytes.Size() );
for ( unsigned int i = 0; i < Bytes.Size(); ++i )
NETWORK_WriteByte( &g_AuthServerBuffer.ByteStream, Bytes[i] );
NETWORK_LaunchPacket( &g_AuthServerBuffer, g_AuthServerAddress );
}
//*****************************************************************************
//
void ZANDRONUM_QueryServer( SERVER_s *pServer )
{
// Clear out the buffer, and write out launcher challenge.
NETWORK_ClearBuffer( &g_MessageBuffer );
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, LAUNCHER_SERVER_CHALLENGE );
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, SQF_NUMPLAYERS|SQF_PLAYERDATA|SQF_GAMETYPE );
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, 0 );
// Send the server our packet.
NETWORK_LaunchPacket( &g_MessageBuffer, pServer->Address, true );
}
//*****************************************************************************
//
void SERVER_MASTER_Tick( void )
{
UCVarValue Val;
while (( g_lStoredQueryIPHead != g_lStoredQueryIPTail ) && ( gametic >= g_StoredQueryIPs[g_lStoredQueryIPHead].lNextAllowedGametic ))
{
g_lStoredQueryIPHead++;
g_lStoredQueryIPHead = g_lStoredQueryIPHead % MAX_STORED_QUERY_IPS;
}
// Send an update to the master server every 30 seconds.
if ( gametic % ( TICRATE * 30 ))
return;
// User doesn't wish to update the master server.
if ( sv_updatemaster == false )
return;
NETWORK_ClearBuffer( &g_MasterServerBuffer );
Val = sv_masterip.GetGenericRep( CVAR_String );
NETWORK_StringToAddress( Val.String, &g_AddressMasterServer );
I_SetPort( g_AddressMasterServer, g_lMasterPort );
// Write to our packet a challenge to the master server.
Val = sv_masteroverrideip.GetGenericRep( CVAR_String );
if ( Val.String[0] == '\0' )
NETWORK_WriteLong( &g_MasterServerBuffer, SERVER_MASTER_CHALLENGE );
else
{
netadr_t OverrideIP;
NETWORK_WriteLong( &g_MasterServerBuffer, SERVER_MASTER_CHALLENGE_OVERRIDE );
NETWORK_StringToAddress( Val.String, &OverrideIP );
NETWORK_WriteByte( &g_MasterServerBuffer, OverrideIP.ip[0] );
NETWORK_WriteByte( &g_MasterServerBuffer, OverrideIP.ip[1] );
NETWORK_WriteByte( &g_MasterServerBuffer, OverrideIP.ip[2] );
NETWORK_WriteByte( &g_MasterServerBuffer, OverrideIP.ip[3] );
NETWORK_WriteShort( &g_MasterServerBuffer, NETWORK_GetLocalPort( ));
}
// Send the master server our packet.
// NETWORK_LaunchPacket( &g_MasterServerBuffer, g_AddressMasterServer, true );
NETWORK_LaunchPacket( &g_MasterServerBuffer, g_AddressMasterServer );
}
//*****************************************************************************
//
void MASTERSERVER_RequestServerVerification( const SERVER_s &Server )
{
NETWORK_ClearBuffer( &g_MessageBuffer );
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, MASTER_SERVER_VERIFICATION );
NETWORK_WriteString( &g_MessageBuffer.ByteStream, Server.MasterBanlistVerificationString.c_str() );
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, Server.ServerVerificationInt );
NETWORK_LaunchPacket( &g_MessageBuffer, Server.Address );
}
//*****************************************************************************
//
void MASTERSERVER_SendBanlistToServer( const SERVER_s &Server )
{
// [BB] If the server supports it, potentially split the ban list over multiple packets.
if ( Server.iServerRevision >= 2907 )
{
BanlistPacketSender sender ( Server );
sender.start();
// Write all the bans.
for ( unsigned int i = 0; i < g_BannedIPs.size( ); ++i )
sender.writeBanEntry ( g_BannedIPs.getEntryAsString( i, false, false, false ).c_str( ), MSB_BAN );
// Write all the exceptions.
for ( unsigned int i = 0; i < g_BannedIPExemptions.size( ); ++i )
sender.writeBanEntry ( g_BannedIPExemptions.getEntryAsString( i, false, false, false ).c_str( ), MSB_BANEXEMPTION );
sender.end();
}
else
{
NETWORK_ClearBuffer( &g_MessageBuffer );
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, MASTER_SERVER_BANLIST );
// [BB] If the server sent us a verification string, send it along with the ban list.
// This allows the server to verify that the list actually was sent from our master
// (and is not just a packet with forged source IP).
if ( Server.MasterBanlistVerificationString.size() )
NETWORK_WriteString( &g_MessageBuffer.ByteStream, Server.MasterBanlistVerificationString.c_str() );
// Write all the bans.
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, g_BannedIPs.size( ));
for ( ULONG i = 0; i < g_BannedIPs.size( ); i++ )
NETWORK_WriteString( &g_MessageBuffer.ByteStream, g_BannedIPs.getEntryAsString( i, false, false, false ).c_str( ));
// Write all the exceptions.
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, g_BannedIPExemptions.size( ));
for ( ULONG i = 0; i < g_BannedIPExemptions.size( ); i++ )
NETWORK_WriteString( &g_MessageBuffer.ByteStream, g_BannedIPExemptions.getEntryAsString( i, false, false, false ).c_str( ));
NETWORK_LaunchPacket( &g_MessageBuffer, Server.Address );
}
Server.bHasLatestBanList = true;
Server.bVerifiedLatestBanList = false;
printf( "-> Banlist sent to %s.\n", NETWORK_AddressToString( Server.Address ));
}
//*****************************************************************************
//
void ZANDRONUM_QueryMasterServer( void )
{
// Clear out the buffer, and write out launcher challenge.
NETWORK_ClearBuffer( &g_MessageBuffer );
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, LAUNCHER_MASTER_CHALLENGE );
NETWORK_WriteShort( &g_MessageBuffer.ByteStream, MASTER_SERVER_VERSION );
// Send the master server our packet.
NETWORK_LaunchPacket( &g_MessageBuffer, g_AddressMasterServer, true );
}
//*****************************************************************************
//
void NETWORK_WriteFloat( BYTESTREAM_s *pByteStream, float Float )
{
union
{
float f;
int l;
} dat;
dat.f = Float;
NETWORK_WriteLong( pByteStream, dat.l );
}
//*****************************************************************************
//
void SERVER_MASTER_SendServerInfo( netadr_t Address, ULONG ulFlags, ULONG ulTime )
{
UCVarValue Val;
char szAddress[4][4];
ULONG ulIdx;
ULONG ulBits;
ULONG ulNumPWADs;
// Let's just use the master server buffer! It gets cleared again when we need it anyway!
NETWORK_ClearBuffer( &g_MasterServerBuffer );
// First, check to see if we've been queried by this address recently.
if ( g_lStoredQueryIPHead != g_lStoredQueryIPTail )
{
ulIdx = g_lStoredQueryIPHead;
while ( ulIdx != (ULONG)g_lStoredQueryIPTail )
{
// Check to see if this IP exists in our stored query IP list. If it does, then
// ignore it, since it queried us less than 10 seconds ago.
if ( NETWORK_CompareAddress( Address, g_StoredQueryIPs[ulIdx].Address, true ))
{
// Write our header.
NETWORK_WriteLong( &g_MasterServerBuffer, SERVER_LAUNCHER_IGNORING );
// Send the time the launcher sent to us.
NETWORK_WriteLong( &g_MasterServerBuffer, ulTime );
// Send the packet.
// NETWORK_LaunchPacket( &g_MasterServerBuffer, Address, true );
NETWORK_LaunchPacket( &g_MasterServerBuffer, Address );
if ( sv_showlauncherqueries )
Printf( "Ignored IP launcher challenge.\n" );
// Nothing more to do here.
return;
}
ulIdx++;
ulIdx = ulIdx % MAX_STORED_QUERY_IPS;
}
}
// Now, check to see if this IP has been banend from this server.
itoa( Address.ip[0], szAddress[0], 10 );
itoa( Address.ip[1], szAddress[1], 10 );
itoa( Address.ip[2], szAddress[2], 10 );
itoa( Address.ip[3], szAddress[3], 10 );
if (( sv_enforcebans ) && ( SERVERBAN_IsIPBanned( szAddress[0], szAddress[1], szAddress[2], szAddress[3] )))
{
// Write our header.
NETWORK_WriteLong( &g_MasterServerBuffer, SERVER_LAUNCHER_BANNED );
// Send the time the launcher sent to us.
NETWORK_WriteLong( &g_MasterServerBuffer, ulTime );
// Send the packet.
NETWORK_LaunchPacket( &g_MasterServerBuffer, Address );
if ( sv_showlauncherqueries )
Printf( "Denied BANNED IP launcher challenge.\n" );
// Nothing more to do here.
return;
}
// This IP didn't exist in the list. and it wasn't banned.
// So, add it, and keep it there for 10 seconds.
g_StoredQueryIPs[g_lStoredQueryIPTail].Address = Address;
g_StoredQueryIPs[g_lStoredQueryIPTail].lNextAllowedGametic = gametic + ( TICRATE * ( sv_queryignoretime ));
g_lStoredQueryIPTail++;
g_lStoredQueryIPTail = g_lStoredQueryIPTail % MAX_STORED_QUERY_IPS;
if ( g_lStoredQueryIPTail == g_lStoredQueryIPHead )
Printf( "SERVER_MASTER_SendServerInfo: WARNING! g_lStoredQueryIPTail == g_lStoredQueryIPHead\n" );
// Write our header.
NETWORK_WriteLong( &g_MasterServerBuffer, SERVER_LAUNCHER_CHALLENGE );
// Send the time the launcher sent to us.
NETWORK_WriteLong( &g_MasterServerBuffer, ulTime );
// Send our version.
NETWORK_WriteString( &g_MasterServerBuffer, DOTVERSIONSTR );
// Send the information about the data that will be sent.
ulBits = ulFlags;
// If the launcher desires to know the team damage, but we're not in a game mode where
// team damage applies, then don't send back team damage information.
if (( teamplay || teamgame || teamlms || teampossession || teamcoop || (( deathmatch == false ) && ( teamgame == false ))) == false )
{
if ( ulBits & SQF_TEAMDAMAGE )
ulBits &= ~SQF_TEAMDAMAGE;
}
// If the launcher desires to know the team score, but we're not in a game mode where
// teams have scores, then don't send back team score information.
if (( teamplay || teamgame || teamlms || teampossession || teamcoop ) == false )
{
if ( ulBits & SQF_TEAMSCORES )
ulBits &= ~SQF_TEAMSCORES;
}
// If the launcher wants to know player data, then we have to tell them how many players
// are in the server.
if ( ulBits & SQF_PLAYERDATA )
ulBits |= SQF_NUMPLAYERS;
NETWORK_WriteLong( &g_MasterServerBuffer, ulBits );
// Send the server name.
if ( ulBits & SQF_NAME )
{
Val = sv_hostname.GetGenericRep( CVAR_String );
NETWORK_WriteString( &g_MasterServerBuffer, Val.String );
}
// Send the website URL.
if ( ulBits & SQF_URL )
{
Val = sv_website.GetGenericRep( CVAR_String );
NETWORK_WriteString( &g_MasterServerBuffer, Val.String );
}
// Send the host's e-mail address.
if ( ulBits & SQF_EMAIL )
{
Val = sv_hostemail.GetGenericRep( CVAR_String );
NETWORK_WriteString( &g_MasterServerBuffer, Val.String );
}
if ( ulBits & SQF_MAPNAME )
NETWORK_WriteString( &g_MasterServerBuffer, level.mapname );
if ( ulBits & SQF_MAXCLIENTS )
NETWORK_WriteByte( &g_MasterServerBuffer, sv_maxclients );
if ( ulBits & SQF_MAXPLAYERS )
NETWORK_WriteByte( &g_MasterServerBuffer, sv_maxplayers );
// Send out the PWAD information.
if ( ulBits & SQF_PWADS )
{
ulNumPWADs = 0;
for ( ulIdx = 0; Wads.GetWadName( ulIdx ) != NULL; ulIdx++ )
{
// Skip the IWAD file index, skulltag.wad/pk3, and files that were automatically
// loaded from subdirectories (such as skin files).
if (( ulIdx == FWadCollection::IWAD_FILENUM ) ||
( stricmp( Wads.GetWadName( ulIdx ), "scoredoomst.wad" ) == 0 ) ||
( stricmp( Wads.GetWadName( ulIdx ), "scoredoomst.pk3" ) == 0 ) ||
( Wads.GetLoadedAutomatically( ulIdx )))
{
continue;
}
ulNumPWADs++;
}
NETWORK_WriteByte( &g_MasterServerBuffer, ulNumPWADs );
for ( ulIdx = 0; Wads.GetWadName( ulIdx ) != NULL; ulIdx++ )
{
// Skip the IWAD file index, skulltag.wad/pk3, and files that were automatically
// loaded from subdirectories (such as skin files).
if (( ulIdx == FWadCollection::IWAD_FILENUM ) ||
( stricmp( Wads.GetWadName( ulIdx ), "scoredoomst.wad" ) == 0 ) ||
( stricmp( Wads.GetWadName( ulIdx ), "scoredoomst.pk3" ) == 0 ) ||
( Wads.GetLoadedAutomatically( ulIdx )))
{
continue;
}
NETWORK_WriteString( &g_MasterServerBuffer, (char *)Wads.GetWadName( ulIdx ));
}
}
if ( ulBits & SQF_GAMETYPE )
{
NETWORK_WriteByte( &g_MasterServerBuffer, GAME_GetGameType( ));
NETWORK_WriteByte( &g_MasterServerBuffer, instagib );
NETWORK_WriteByte( &g_MasterServerBuffer, buckshot );
}
if ( ulBits & SQF_GAMENAME )
NETWORK_WriteString( &g_MasterServerBuffer, SERVER_MASTER_GetGameName( ));
if ( ulBits & SQF_IWAD )
NETWORK_WriteString( &g_MasterServerBuffer, (char *)Wads.GetWadName( FWadCollection::IWAD_FILENUM ));
if ( ulBits & SQF_FORCEPASSWORD )
NETWORK_WriteByte( &g_MasterServerBuffer, sv_forcepassword );
if ( ulBits & SQF_FORCEJOINPASSWORD )
NETWORK_WriteByte( &g_MasterServerBuffer, sv_forcejoinpassword );
if ( ulBits & SQF_GAMESKILL )
NETWORK_WriteByte( &g_MasterServerBuffer, gameskill );
if ( ulBits & SQF_BOTSKILL )
NETWORK_WriteByte( &g_MasterServerBuffer, botskill );
if ( ulBits & SQF_DMFLAGS )
{
NETWORK_WriteLong( &g_MasterServerBuffer, dmflags );
NETWORK_WriteLong( &g_MasterServerBuffer, dmflags2 );
NETWORK_WriteLong( &g_MasterServerBuffer, compatflags );
}
if ( ulBits & SQF_LIMITS )
{
NETWORK_WriteShort( &g_MasterServerBuffer, fraglimit );
NETWORK_WriteShort( &g_MasterServerBuffer, (SHORT)timelimit );
if ( timelimit )
{
LONG lTimeLeft;
lTimeLeft = (LONG)( timelimit - ( level.totaltime / ( TICRATE * 60 ))); //ghk
if ( lTimeLeft < 0 )
lTimeLeft = 0;
NETWORK_WriteShort( &g_MasterServerBuffer, lTimeLeft );
}
NETWORK_WriteShort( &g_MasterServerBuffer, duellimit );
NETWORK_WriteLong( &g_MasterServerBuffer, pointlimit ); //ghk writelong
NETWORK_WriteShort( &g_MasterServerBuffer, winlimit );
}
// Send the team damage scale.
if ( teamplay || teamgame || teamlms || teampossession || teamcoop || (( deathmatch == false ) && ( teamgame == false )))
{
if ( ulBits & SQF_TEAMDAMAGE )
NETWORK_WriteFloat( &g_MasterServerBuffer, teamdamage );
}
// Send the team scores.
if ( teamplay || teamgame || teamlms || teampossession || teamcoop )
{
if ( ulBits & SQF_TEAMSCORES )
{
for ( ulIdx = 0; ulIdx < NUM_TEAMS; ulIdx++ )
{
if ( teamplay )
NETWORK_WriteShort( &g_MasterServerBuffer, TEAM_GetFragCount( ulIdx ));
else if ( teamlms )
NETWORK_WriteShort( &g_MasterServerBuffer, TEAM_GetWinCount( ulIdx ));
else
NETWORK_WriteShort( &g_MasterServerBuffer, TEAM_GetScore( ulIdx )); //ghk writelong?
}
}
}
if ( ulBits & SQF_NUMPLAYERS )
NETWORK_WriteByte( &g_MasterServerBuffer, SERVER_CalcNumPlayers( ));
if ( ulBits & SQF_PLAYERDATA )
{
for ( ulIdx = 0; ulIdx < MAXPLAYERS; ulIdx++ )
{
if ( playeringame[ulIdx] == false )
continue;
NETWORK_WriteString( &g_MasterServerBuffer, players[ulIdx].userinfo.netname );
if ( teamgame || possession || teampossession || cooperative || teamcoop )
NETWORK_WriteLong( &g_MasterServerBuffer, players[ulIdx].lPointCount );//ghk writelong
else if ( deathmatch )
NETWORK_WriteLong( &g_MasterServerBuffer, players[ulIdx].fragcount ); //ghk writelong
else
NETWORK_WriteLong( &g_MasterServerBuffer, players[ulIdx].killcount ); //ghk writelong
NETWORK_WriteShort( &g_MasterServerBuffer, players[ulIdx].ulPing );
NETWORK_WriteByte( &g_MasterServerBuffer, PLAYER_IsTrueSpectator( &players[ulIdx] ));
NETWORK_WriteByte( &g_MasterServerBuffer, players[ulIdx].bIsBot );
if ( teamplay || teamgame || teamlms || teampossession || teamcoop )
{
if ( players[ulIdx].bOnTeam == false )
NETWORK_WriteByte( &g_MasterServerBuffer, 255 );
else
NETWORK_WriteByte( &g_MasterServerBuffer, players[ulIdx].ulTeam );
}
NETWORK_WriteByte( &g_MasterServerBuffer, players[ulIdx].ulTime / ( TICRATE * 60 ));
}
}
// NETWORK_LaunchPacket( &g_MasterServerBuffer, Address, true );
NETWORK_LaunchPacket( &g_MasterServerBuffer, Address );
}
//*****************************************************************************
//
void MASTERSERVER_ParseCommands( BYTESTREAM_s *pByteStream )
{
long lCommand;
NETADDRESS_s AddressFrom;
AddressFrom = NETWORK_GetFromAddress( );
// [RC] If this IP is in our flood queue, ignore it completely.
if ( g_floodProtectionIPQueue.addressInQueue( AddressFrom ) || g_ShortFloodQueue.addressInQueue( AddressFrom ))
{
while ( NETWORK_ReadByte( pByteStream ) != -1 ) // [RC] Is this really necessary?
;
return;
}
// Is this IP banned? Send the user an explanation, and ignore the IP for 30 seconds.
if ( !g_BannedIPExemptions.isIPInList( AddressFrom ) && g_BannedIPs.isIPInList( AddressFrom ))
{
NETWORK_ClearBuffer( &g_MessageBuffer );
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, MSC_IPISBANNED );
NETWORK_LaunchPacket( &g_MessageBuffer, AddressFrom );
printf( "* Received challenge from banned IP (%s). Ignoring for 10 seconds.\n", NETWORK_AddressToString( AddressFrom ));
g_queryIPQueue.addAddress( AddressFrom, g_lCurrentTime, &std::cerr );
return;
}
lCommand = NETWORK_ReadLong( pByteStream );
switch ( lCommand )
{
// Server is telling master server of its existence.
case SERVER_MASTER_CHALLENGE:
{
// Certain IPs can be blocked from just hosting.
if ( !g_BannedIPExemptions.isIPInList( AddressFrom ) && g_BlockedIPs.isIPInList( AddressFrom ))
{
NETWORK_ClearBuffer( &g_MessageBuffer );
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, MSC_IPISBANNED );
NETWORK_LaunchPacket( &g_MessageBuffer, AddressFrom );
printf( "* Received server challenge from blocked IP (%s). Ignoring for 10 seconds.\n", NETWORK_AddressToString( AddressFrom ));
g_queryIPQueue.addAddress( AddressFrom, g_lCurrentTime, &std::cerr );
return;
}
SERVER_s newServer;
newServer.Address = AddressFrom;
// [BB] If no verification string was send, NETWORK_ReadString just returns an empty string.
// Thus, this is still compatible with older servers that don't send the string.
newServer.MasterBanlistVerificationString = NETWORK_ReadString( pByteStream );
// [BB] If no value was send, NETWORK_ReadByte just returns -1.
// Thus, this is still compatible with older servers that don't tell us whether they enforce our bans
// and gives them the benefit of the doubt, i.e. it assumes that they enforce our bans.
const int temp = NETWORK_ReadByte( pByteStream );
newServer.bEnforcesBanList = ( temp != 0 );
newServer.bNewFormatServer = ( temp != -1 );
newServer.iServerRevision = ( ( pByteStream->pbStreamEnd - pByteStream->pbStream ) >= 4 ) ? NETWORK_ReadLong( pByteStream ) : NETWORK_ReadShort( pByteStream );
std::set<SERVER_s, SERVERCompFunc>::iterator currentServer = g_Servers.find ( newServer );
// This is a new server; add it to the list.
if ( currentServer == g_Servers.end() )
{
unsigned int iNumOtherServers = 0;
// First count the number of servers from this IP.
for( std::set<SERVER_s, SERVERCompFunc>::const_iterator it = g_Servers.begin(); it != g_Servers.end(); ++it )
{
if ( NETWORK_CompareAddress( it->Address, AddressFrom, true ))
iNumOtherServers++;
}
if ( iNumOtherServers >= 10 && !g_MultiServerExceptions.isIPInList( AddressFrom ))
printf( "* More than 10 servers received from %s. Ignoring request...\n", NETWORK_AddressToString( AddressFrom ));
else
{
// [BB] 3021 is 98d, don't put those servers on the list.
if ( ( newServer.bNewFormatServer ) && ( newServer.iServerRevision != 3021 ) )
{
std::set<SERVER_s, SERVERCompFunc>::iterator currentUnverifiedServer = g_UnverifiedServers.find ( newServer );
// [BB] This is a new server, but we still need to verify it.
if ( currentUnverifiedServer == g_UnverifiedServers.end() )
{
srand ( time(NULL) );
newServer.ServerVerificationInt = rand() + rand() * rand() + rand() * rand() * rand();
// [BB] We don't send the ban list to unverified servers, so just pretent the server already has the list.
newServer.bHasLatestBanList = true;
MASTERSERVER_RequestServerVerification ( newServer );
MASTERSERVER_AddServer( newServer, g_UnverifiedServers );
}
}
else
{
printf( "* Received server challenge from old server (%s). Ignoring IP for 10 seconds.\n", NETWORK_AddressToString( newServer.Address ));
g_queryIPQueue.addAddress( newServer.Address, g_lCurrentTime, &std::cerr );
}
}
}
// Command is from a server already on the list. It's just sending us a heartbeat.
else
{
// [BB] Only if the verification string matches.
if ( stricmp ( currentServer->MasterBanlistVerificationString.c_str(), newServer.MasterBanlistVerificationString.c_str() ) == 0 )
{
currentServer->lLastReceived = g_lCurrentTime;
// [BB] The server possibly changed the ban setting, so update it.
currentServer->bEnforcesBanList = newServer.bEnforcesBanList;
}
}
// Ignore IP for 10 seconds.
// if ( !g_MultiServerExceptions.isIPInList( Address ) )
// g_floodProtectionIPQueue.addAddress( AddressFrom, g_lCurrentTime, &std::cerr );
return;
}
case SERVER_MASTER_VERIFICATION:
{
SERVER_s newServer;
newServer.Address = AddressFrom;
newServer.MasterBanlistVerificationString = NETWORK_ReadString( pByteStream );
newServer.ServerVerificationInt = NETWORK_ReadLong( pByteStream );
std::set<SERVER_s, SERVERCompFunc>::iterator currentServer = g_UnverifiedServers.find ( newServer );
// [BB] Apparently, we didn't request any verification from this server, so ignore it.
if ( currentServer == g_UnverifiedServers.end() )
return;
if ( ( stricmp ( newServer.MasterBanlistVerificationString.c_str(), currentServer->MasterBanlistVerificationString.c_str() ) == 0 )
&& ( newServer.ServerVerificationInt == currentServer->ServerVerificationInt ) )
{
MASTERSERVER_AddServer( *currentServer, g_Servers );
g_UnverifiedServers.erase ( currentServer );
}
return;
}
case SERVER_MASTER_BANLIST_RECEIPT:
{
SERVER_s server;
server.Address = AddressFrom;
server.MasterBanlistVerificationString = NETWORK_ReadString( pByteStream );
std::set<SERVER_s, SERVERCompFunc>::iterator currentServer = g_Servers.find ( server );
// [BB] We don't know the server. Just ignore it.
if ( currentServer == g_Servers.end() )
return;
if ( stricmp ( server.MasterBanlistVerificationString.c_str(), currentServer->MasterBanlistVerificationString.c_str() ) == 0 )
{
currentServer->bVerifiedLatestBanList = true;
std::cerr << NETWORK_AddressToString ( AddressFrom ) << " acknowledged receipt of the banlist.\n";
}
}
return;
// Launcher is asking master server for server list.
case LAUNCHER_SERVER_CHALLENGE:
case LAUNCHER_MASTER_CHALLENGE:
{
NETWORK_ClearBuffer( &g_MessageBuffer );
// Did this IP query us recently? If so, send it an explanation, and ignore it completely for 3 seconds.
if ( g_queryIPQueue.addressInQueue( AddressFrom ))
{
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, MSC_REQUESTIGNORED );
NETWORK_LaunchPacket( &g_MessageBuffer, AddressFrom );
printf( "* Extra launcher challenge from %s. Ignoring for 3 seconds.\n", NETWORK_AddressToString( AddressFrom ));
g_ShortFloodQueue.addAddress( AddressFrom, g_lCurrentTime, &std::cerr );
return;
}
// [BB] The launcher only sends the protocol version with LAUNCHER_MASTER_CHALLENGE.
if ( lCommand == LAUNCHER_MASTER_CHALLENGE )
{
// [BB] Check if the requested version of the protocol matches ours.
const unsigned short usVersion = NETWORK_ReadShort( pByteStream );
if ( usVersion != MASTER_SERVER_VERSION )
{
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, MSC_WRONGVERSION );
NETWORK_LaunchPacket( &g_MessageBuffer, AddressFrom );
return;
}
}
printf( "-> Sending server list to %s.\n", NETWORK_AddressToString( AddressFrom ));
// Wait 10 seconds before sending this IP the server list again.
g_queryIPQueue.addAddress( AddressFrom, g_lCurrentTime, &std::cerr );
switch ( lCommand )
{
case LAUNCHER_SERVER_CHALLENGE:
// Send the list of servers.
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, MSC_BEGINSERVERLIST );
for( std::set<SERVER_s, SERVERCompFunc>::const_iterator it = g_Servers.begin(); it != g_Servers.end(); ++it )
{
// [BB] Possibly omit servers that don't enforce our ban list.
if ( ( it->bEnforcesBanList == true ) || ( g_bHideBanIgnoringServers == false ) )
MASTERSERVER_SendServerIPToLauncher ( it->Address, &g_MessageBuffer.ByteStream );
}
// Tell the launcher that we're done sending servers.
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, MSC_ENDSERVERLIST );
// Send the launcher our packet.
NETWORK_LaunchPacket( &g_MessageBuffer, AddressFrom );
return;
case LAUNCHER_MASTER_CHALLENGE:
const unsigned long ulMaxPacketSize = 1024;
unsigned long ulPacketNum = 0;
std::set<SERVER_s, SERVERCompFunc>::const_iterator it = g_Servers.begin();
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, MSC_BEGINSERVERLISTPART );
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, ulPacketNum );
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, MSC_SERVERBLOCK );
unsigned long ulSizeOfPacket = 6; // 4 (MSC_BEGINSERVERLISTPART) + 1 (0) + 1 (MSC_SERVERBLOCK)
while ( it != g_Servers.end() )
{
NETADDRESS_s serverAddress = it->Address;
std::vector<USHORT> serverPortList;
do {
// [BB] Possibly omit servers that don't enforce our ban list.
if ( ( it->bEnforcesBanList == true ) || ( g_bHideBanIgnoringServers == false ) )
serverPortList.push_back ( it->Address.usPort );
++it;
} while ( ( it != g_Servers.end() ) && NETWORK_CompareAddress( it->Address, serverAddress, true ) );
// [BB] All servers on this IP ignore the list, nothing to send.
if ( serverPortList.size() == 0 )
continue;
const unsigned long ulServerBlockNetSize = MASTERSERVER_CalcServerIPBlockNetSize( serverAddress, serverPortList );
// [BB] If sending this block would cause the current packet to exceed ulMaxPacketSize ...
if ( ulSizeOfPacket + ulServerBlockNetSize > ulMaxPacketSize - 1 )
{
// [BB] ... close the current packet and start a new one.
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, 0 ); // [BB] Terminate MSC_SERVERBLOCK by sending 0 ports.
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, MSC_ENDSERVERLISTPART );
NETWORK_LaunchPacket( &g_MessageBuffer, AddressFrom );
NETWORK_ClearBuffer( &g_MessageBuffer );
++ulPacketNum;
ulSizeOfPacket = 5;
NETWORK_WriteLong( &g_MessageBuffer.ByteStream, MSC_BEGINSERVERLISTPART );
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, ulPacketNum );
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, MSC_SERVERBLOCK );
}
ulSizeOfPacket += ulServerBlockNetSize;
MASTERSERVER_SendServerIPBlockToLauncher ( serverAddress, serverPortList, &g_MessageBuffer.ByteStream );
}
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, 0 ); // [BB] Terminate MSC_SERVERBLOCK by sending 0 ports.
NETWORK_WriteByte( &g_MessageBuffer.ByteStream, MSC_ENDSERVERLIST );
NETWORK_LaunchPacket( &g_MessageBuffer, AddressFrom );
return;
}
}
}
printf( "* Received unknown challenge (%ld) from %s. Ignoring for 10 seconds...\n", lCommand, NETWORK_AddressToString( AddressFrom ));
g_floodProtectionIPQueue.addAddress( AddressFrom, g_lCurrentTime, &std::cerr );
}
