//*****************************************************************************
//
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 NETWORK_Construct( USHORT usPort, bool bAllocateLANSocket )
{
char szString[128];
ULONG ulArg;
USHORT usNewPort;
bool bSuccess;
// Initialize the Huffman buffer.
HUFFMAN_Construct( );
#ifdef __WIN32__
// [BB] Linux doesn't know WSADATA, so this may not be moved outside the ifdef.
WSADATA WSAData;
if ( WSAStartup( 0x0101, &WSAData ))
network_Error( "Winsock initialization failed!\n" );
Printf( "Winsock initialization succeeded!\n" );
#endif
ULONG ulInAddr = INADDR_ANY;
const char* pszIPAddress = Args->CheckValue( "-useip" );
// [BB] An IP was specfied. Check if it's valid and if it is, try to bind our socket to it.
if ( pszIPAddress )
{
ULONG requestedIP = inet_addr( pszIPAddress );
if ( requestedIP == INADDR_NONE )
{
sprintf( szString, "NETWORK_Construct: %s is not a valid IP address\n", pszIPAddress );
network_Error( szString );
}
else
ulInAddr = requestedIP;
}
g_usLocalPort = usPort;
// Allocate a socket, and attempt to bind it to the given port.
g_NetworkSocket = network_AllocateSocket( );
// [BB] If we can't allocate a socket, sending / receiving net packets won't work.
if ( g_NetworkSocket == INVALID_SOCKET )
network_Error( "NETWORK_Construct: Couldn't allocate socket. You will not be able to host or join servers.\n" );
else if ( network_BindSocketToPort( g_NetworkSocket, ulInAddr, g_usLocalPort, false ) == false )
{
bSuccess = true;
bool bSuccessIP = true;
usNewPort = g_usLocalPort;
while ( network_BindSocketToPort( g_NetworkSocket, ulInAddr, ++usNewPort, false ) == false )
{
// Didn't find an available port. Oh well...
if ( usNewPort == g_usLocalPort )
{
// [BB] We couldn't use the specified IP, so just try any.
if ( ulInAddr != INADDR_ANY )
{
ulInAddr = INADDR_ANY;
bSuccessIP = false;
continue;
}
bSuccess = false;
break;
}
}
if ( bSuccess == false )
{
sprintf( szString, "NETWORK_Construct: Couldn't bind socket to port: %d\n", g_usLocalPort );
network_Error( szString );
}
else if ( bSuccessIP == false )
{
sprintf( szString, "NETWORK_Construct: Couldn't bind socket to IP %s, using the default IP instead:\n", pszIPAddress );
network_Error( szString );
}
else
{
Printf( "NETWORK_Construct: Couldn't bind to %d. Binding to %d instead...\n", g_usLocalPort, usNewPort );
g_usLocalPort = usNewPort;
}
}
ulArg = true;
if ( ioctlsocket( g_NetworkSocket, FIONBIO, &ulArg ) == -1 )
printf( "network_AllocateSocket: ioctl FIONBIO: %s", strerror( errno ));
// If we're not starting a server, setup a socket to listen for LAN servers.
if ( bAllocateLANSocket )
{
g_LANSocket = network_AllocateSocket( );
if ( network_BindSocketToPort( g_LANSocket, ulInAddr, DEFAULT_BROADCAST_PORT, true ) == false )
{
sprintf( szString, "network_BindSocketToPort: Couldn't bind LAN socket to port: %d. You will not be able to see LAN servers in the browser.", DEFAULT_BROADCAST_PORT );
network_Error( szString );
// [BB] The socket won't work in this case, make sure not to use it.
g_bLANSocketInvalid = true;
}
if ( ioctlsocket( g_LANSocket, FIONBIO, &ulArg ) == -1 )
printf( "network_AllocateSocket: ioctl FIONBIO: %s", strerror( errno ));
}
// Init our read buffer.
// [BB] Vortex Cortex pointed us to the fact that the smallest huffman code is only 3 bits
// and it turns into 8 bits when it's decompressed. Thus we need to allocate a buffer that
// can hold the biggest possible size we may get after decompressing (aka Huffman decoding)
// the incoming UDP packet.
NETWORK_InitBuffer( &g_NetworkMessage, ((MAX_UDP_PACKET * 8) / 3 + 1), BUFFERTYPE_READ );
NETWORK_ClearBuffer( &g_NetworkMessage );
// [BB] Get and save our local IP.
if ( ( ulInAddr == INADDR_ANY ) || ( pszIPAddress == NULL ) )
g_LocalAddress = NETWORK_GetLocalAddress( );
// [BB] We are using a specified IP, so we don't need to figure out what IP we have, but just use the specified one.
else
{
NETWORK_StringToAddress ( pszIPAddress, &g_LocalAddress );
g_LocalAddress.usPort = htons ( NETWORK_GetLocalPort() );
}
// Print out our local IP address.
Printf( "IP address %s\n", NETWORK_AddressToString( g_LocalAddress ));
// If hosting, update the server GUI.
if( NETWORK_GetState() == NETSTATE_SERVER )
SERVERCONSOLE_UpdateIP( g_LocalAddress );
// [BB] Initialize the checksum of the non-map lumps that need to be authenticated when connecting a new player.
std::vector<std::string> lumpsToAuthenticate;
std::vector<LumpAuthenticationMode> lumpsToAuthenticateMode;
lumpsToAuthenticate.push_back( "COLORMAP" );
lumpsToAuthenticateMode.push_back( LAST_LUMP );
lumpsToAuthenticate.push_back( "PLAYPAL" );
lumpsToAuthenticateMode.push_back( LAST_LUMP );
lumpsToAuthenticate.push_back( "HTICDEFS" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
lumpsToAuthenticate.push_back( "HEXNDEFS" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
lumpsToAuthenticate.push_back( "STRFDEFS" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
lumpsToAuthenticate.push_back( "DOOMDEFS" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
lumpsToAuthenticate.push_back( "GLDEFS" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
lumpsToAuthenticate.push_back( "DECORATE" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
lumpsToAuthenticate.push_back( "LOADACS" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
lumpsToAuthenticate.push_back( "DEHACKED" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
lumpsToAuthenticate.push_back( "GAMEMODE" );
lumpsToAuthenticateMode.push_back( ALL_LUMPS );
FString checksum, longChecksum;
bool noProtectedLumpsAutoloaded = true;
// [BB] All precompiled ACS libraries need to be authenticated. The only way to find all of them
// at this point is to parse all LOADACS lumps.
{
int lump, lastlump = 0;
while ((lump = Wads.FindLump ("LOADACS", &lastlump)) != -1)
{
FScanner sc(lump);
while (sc.GetString())
{
NETWORK_AddLumpForAuthentication ( Wads.CheckNumForName (sc.String, ns_acslibrary) );
}
}
}
// [BB] First check the lumps that were marked for authentication while initializing. This
// includes for example those lumps included by DECORATE lumps. It's much easier to mark those
// lumps while the engine parses the DECORATE code than trying to find all included lumps from
// the DECORATE lumps directly.
for ( unsigned int i = 0; i < g_LumpNumsToAuthenticate.Size(); ++i )
{
if ( !network_GenerateLumpMD5HashAndWarnIfNeeded( g_LumpNumsToAuthenticate[i], Wads.GetLumpFullName (g_LumpNumsToAuthenticate[i]), checksum ) )
noProtectedLumpsAutoloaded = false;
longChecksum += checksum;
}
for ( unsigned int i = 0; i < lumpsToAuthenticate.size(); i++ )
{
switch ( lumpsToAuthenticateMode[i] ){
case LAST_LUMP:
int lump;
lump = Wads.CheckNumForName(lumpsToAuthenticate[i].c_str());
// [BB] Possibly we find the COLORMAP lump only in the colormaps name space.
if ( ( lump == -1 ) && ( lumpsToAuthenticate[i].compare ( "COLORMAP" ) == 0 ) )
lump = Wads.CheckNumForName("COLORMAP", ns_colormaps);
if ( lump == -1 )
{
Printf ( PRINT_BOLD, "Warning: Can't find lump %s for authentication!\n", lumpsToAuthenticate[i].c_str() );
continue;
}
if ( !network_GenerateLumpMD5HashAndWarnIfNeeded( lump, lumpsToAuthenticate[i].c_str(), checksum ) )
noProtectedLumpsAutoloaded = false;
// [BB] To make Doom and Freedoom network compatible, substitue the Freedoom PLAYPAL/COLORMAP hash
// by the corresponding Doom hash.
// 4804c7f34b5285c334a7913dd98fae16 Doom PLAYPAL hash
// 061a4c0f80aa8029f2c1bc12dc2e261e Doom COLORMAP hash
// 2e01ae6258f2a0fdad32125537efe1af Freedoom PLAYPAL hash
// bb535e66cae508e3833a5d2de974267b Freedoom COLORMAP hash
if ( ( stricmp ( lumpsToAuthenticate[i].c_str(), "PLAYPAL" ) == 0 ) && ( stricmp ( checksum.GetChars(), "2e01ae6258f2a0fdad32125537efe1af" ) == 0 ) )
checksum = "4804c7f34b5285c334a7913dd98fae16";
else if ( ( stricmp ( lumpsToAuthenticate[i].c_str(), "COLORMAP" ) == 0 ) && ( stricmp ( checksum.GetChars(), "bb535e66cae508e3833a5d2de974267b" ) == 0 ) )
checksum = "061a4c0f80aa8029f2c1bc12dc2e261e";
longChecksum += checksum;
break;
case ALL_LUMPS:
int workingLump, lastLump;
lastLump = 0;
while ((workingLump = Wads.FindLump(lumpsToAuthenticate[i].c_str(), &lastLump)) != -1)
{
if ( !network_GenerateLumpMD5HashAndWarnIfNeeded( workingLump, lumpsToAuthenticate[i].c_str(), checksum ) )
noProtectedLumpsAutoloaded = false;
longChecksum += checksum;
}
break;
}
}
CMD5Checksum::GetMD5( reinterpret_cast<const BYTE *>(longChecksum.GetChars()), longChecksum.Len(), g_lumpsAuthenticationChecksum );
// [BB] Warn the user about problematic auto-loaded files.
if ( noProtectedLumpsAutoloaded == false )
{
Printf ( PRINT_BOLD, "Warning: Above auto-loaded files contain protected lumps.\n" );
if ( Args->CheckParm( "-host" ) )
Printf ( PRINT_BOLD, "Clients without these files can't connect to this server.\n" );
else
Printf ( PRINT_BOLD, "You can't connect to servers without these files.\n" );
}
// [BB] Initialize the actor network class indices.
for ( unsigned int i = 0; i < PClass::m_Types.Size(); i++ )
{
PClass* cls = PClass::m_Types[i];
if ( (cls->IsDescendantOf(RUNTIME_CLASS(AActor)))
// [BB] The server only binaries don't know DynamicLight and derived classes.
&& !(cls->IsDescendantOf(PClass::FindClass("DynamicLight"))) )
cls->ActorNetworkIndex = 1 + g_ActorNetworkIndexClassPointerMap.Push ( cls );
else
cls->ActorNetworkIndex = 0;
}
// [RC/BB] Init the list of PWADs.
network_InitPWADList( );
// Call NETWORK_Destruct() when Skulltag closes.
atterm( NETWORK_Destruct );
Printf( "UDP Initialized.\n" );
}