/*
=================
CL_ConnectionlessPacket
Responses to broadcasts, etc
=================
*/
void CL_ConnectionlessPacket( netadr_t from, sizebuf_t *msg )
{
char *args;
char *c, buf[MAX_SYSPATH];
int len = sizeof( buf ), i = 0;
netadr_t servadr;
BF_Clear( msg );
BF_ReadLong( msg ); // skip the -1
args = BF_ReadStringLine( msg );
Cmd_TokenizeString( args );
c = Cmd_Argv( 0 );
MsgDev( D_NOTE, "CL_ConnectionlessPacket: %s : %s\n", NET_AdrToString( from ), c );
// server connection
if( !Q_strcmp( c, "client_connect" ))
{
if( cls.state == ca_connected )
{
MsgDev( D_INFO, "Dup connect received. Ignored.\n");
return;
}
Netchan_Setup( NS_CLIENT, &cls.netchan, from, net_qport->integer);
BF_WriteByte( &cls.netchan.message, clc_stringcmd );
BF_WriteString( &cls.netchan.message, "new" );
cls.state = ca_connected;
cl.validsequence = 0; // haven't gotten a valid frame update yet
cl.delta_sequence = -1; // we'll request a full delta from the baseline
cls.lastoutgoingcommand = -1; // we don't have a backed up cmd history yet
cls.nextcmdtime = host.realtime; // we can send a cmd right away
CL_StartupDemoHeader ();
}
else if( !Q_strcmp( c, "info" ))
{
// server responding to a status broadcast
CL_ParseStatusMessage( from, msg );
}
else if( !Q_strcmp( c, "netinfo" ))
{
// server responding to a status broadcast
CL_ParseNETInfoMessage( from, msg );
}
else if( !Q_strcmp( c, "cmd" ))
{
// remote command from gui front end
if( !NET_IsLocalAddress( from ))
{
Msg( "Command packet from remote host. Ignored.\n" );
return;
}
#ifdef XASH_SDL
SDL_RestoreWindow( host.hWnd );
#endif
args = BF_ReadString( msg );
Cbuf_AddText( args );
Cbuf_AddText( "\n" );
}
else if( !Q_strcmp( c, "print" ))
{
// print command from somewhere
Msg("remote: %s\n", BF_ReadString( msg ) );
}
else if( !Q_strcmp( c, "ping" ))
{
// ping from somewhere
Netchan_OutOfBandPrint( NS_CLIENT, from, "ack" );
}
else if( !Q_strcmp( c, "challenge" ))
{
// challenge from the server we are connecting to
cls.challenge = Q_atoi( Cmd_Argv( 1 ));
CL_SendConnectPacket();
return;
}
else if( !Q_strcmp( c, "echo" ))
{
// echo request from server
Netchan_OutOfBandPrint( NS_CLIENT, from, "%s", Cmd_Argv( 1 ));
}
else if( !Q_strcmp( c, "disconnect" ))
{
// a disconnect message from the server, which will happen if the server
// dropped the connection but it is still getting packets from us
CL_Disconnect();
CL_ClearEdicts();
}
else if( !Q_strcmp( c, "f") )
{
// serverlist got from masterserver
while( !msg->bOverflow )
{
servadr.type = NA_IP;
// 4 bytes for IP
BF_ReadBytes( msg, servadr.ip, sizeof( servadr.ip ));
// 2 bytes for Port
servadr.port = BF_ReadShort( msg );
if( !servadr.port )
break;
MsgDev( D_INFO, "Found server: %s\n", NET_AdrToString( servadr ));
NET_Config( true ); // allow remote
Netchan_OutOfBandPrint( NS_CLIENT, servadr, "info %i", PROTOCOL_VERSION );
}
// execute at next frame preventing relation on fps
Cbuf_AddText("menu_resetping\n");
}
else if( clgame.dllFuncs.pfnConnectionlessPacket( &from, args, buf, &len ))
{
// user out of band message (must be handled in CL_ConnectionlessPacket)
if( len > 0 ) Netchan_OutOfBand( NS_SERVER, from, len, (byte *)buf );
}
else MsgDev( D_ERROR, "Bad connectionless packet from %s:\n%s\n", NET_AdrToString( from ), args );
}
/*
=================
CL_ConnectionlessPacket
Responses to broadcasts, etc
=================
*/
void CL_ConnectionlessPacket( netadr_t from, sizebuf_t *msg )
{
char *args;
char *c, buf[MAX_SYSPATH];
int len = sizeof( buf );
int dataoffset = 0;
netadr_t servadr;
BF_Clear( msg );
BF_ReadLong( msg ); // skip the -1
args = BF_ReadStringLine( msg );
Cmd_TokenizeString( args );
c = Cmd_Argv( 0 );
MsgDev( D_NOTE, "CL_ConnectionlessPacket: %s : %s\n", NET_AdrToString( from ), c );
// server connection
if( !Q_strcmp( c, "client_connect" ))
{
if( cls.state == ca_connected )
{
MsgDev( D_INFO, "dup connect received. ignored\n");
return;
}
Netchan_Setup( NS_CLIENT, &cls.netchan, from, Cvar_VariableValue( "net_qport" ));
BF_WriteByte( &cls.netchan.message, clc_stringcmd );
BF_WriteString( &cls.netchan.message, "new" );
cls.state = ca_connected;
cl.validsequence = 0; // haven't gotten a valid frame update yet
cl.delta_sequence = -1; // we'll request a full delta from the baseline
cls.lastoutgoingcommand = -1; // we don't have a backed up cmd history yet
cls.nextcmdtime = host.realtime; // we can send a cmd right away
CL_StartupDemoHeader ();
UI_SetActiveMenu( false );
}
else if( !Q_strcmp( c, "info" ))
{
// server responding to a status broadcast
CL_ParseStatusMessage( from, msg );
}
else if( !Q_strcmp( c, "netinfo" ))
{
// server responding to a status broadcast
CL_ParseNETInfoMessage( from, msg );
}
else if( !Q_strcmp( c, "cmd" ))
{
// remote command from gui front end
if( !NET_IsLocalAddress( from ))
{
Msg( "Command packet from remote host. Ignored.\n" );
return;
}
ShowWindow( host.hWnd, SW_RESTORE );
SetForegroundWindow ( host.hWnd );
args = BF_ReadString( msg );
Cbuf_AddText( args );
Cbuf_AddText( "\n" );
}
else if( !Q_strcmp( c, "print" ))
{
// print command from somewhere
args = BF_ReadString( msg );
Msg( args );
}
else if( !Q_strcmp( c, "ping" ))
{
// ping from somewhere
Netchan_OutOfBandPrint( NS_CLIENT, from, "ack" );
}
else if( !Q_strcmp( c, "challenge" ))
{
// challenge from the server we are connecting to
cls.challenge = Q_atoi( Cmd_Argv( 1 ));
CL_SendConnectPacket();
return;
}
else if( !Q_strcmp( c, "echo" ))
{
// echo request from server
Netchan_OutOfBandPrint( NS_CLIENT, from, "%s", Cmd_Argv( 1 ));
}
else if( !Q_strcmp( c, "disconnect" ))
{
// a disconnect message from the server, which will happen if the server
// dropped the connection but it is still getting packets from us
CL_Disconnect();
}
else if( clgame.dllFuncs.pfnConnectionlessPacket( &from, args, buf, &len ))
{
// user out of band message (must be handled in CL_ConnectionlessPacket)
if( len > 0 ) Netchan_OutOfBand( NS_SERVER, from, len, buf );
}
else if( msg->pData[0] == 0xFF && msg->pData[1] == 0xFF && msg->pData[2] == 0xFF && msg->pData[3] == 0xFF && msg->pData[4] == 0x66 && msg->pData[5] == 0x0A )
{
dataoffset = 6;
while( 1 )
{
servadr.type = NA_IP;
servadr.ip[0] = msg->pData[dataoffset + 0];
servadr.ip[1] = msg->pData[dataoffset + 1];
servadr.ip[2] = msg->pData[dataoffset + 2];
servadr.ip[3] = msg->pData[dataoffset + 3];
servadr.port = *(word *)&msg->pData[dataoffset + 4];
if( !servadr.port )
break;
MsgDev( D_INFO, "Found server: %s\n", NET_AdrToString( servadr ));
NET_Config( true ); // allow remote
Netchan_OutOfBandPrint( NS_CLIENT, servadr, "info %i", PROTOCOL_VERSION );
dataoffset += 6;
}
}
else MsgDev( D_ERROR, "bad connectionless packet from %s:\n%s\n", NET_AdrToString( from ), args );
}
