示例#1
0
/*
 * =================
 * SV_ReadPackets
 * =================
 */
void SV_ReadPackets(void)
{
    int      i;
    client_t *cl;
    int      qport;

    while (NET_GetPacket(NS_SERVER, &net_from, &net_message))
    {
        // check for connectionless packet (0xffffffff) first
        if (*(int *)net_message.data == -1)
        {
            SV_ConnectionlessPacket();
            continue;
        }

        // read the qport out of the message so we can fix up
        // stupid address translating routers
        MSG_BeginReading(&net_message);
        MSG_ReadLong(&net_message);                     // sequence number
        MSG_ReadLong(&net_message);                     // sequence number
        qport = MSG_ReadShort(&net_message) & 0xffff;

        // check for packets from connected clients
        for (i = 0, cl = svs.clients; i < maxclients->value; i++, cl++)
        {
            if (cl->state == cs_free)
            {
                continue;
            }
            if (!NET_CompareBaseAdr(net_from, cl->netchan.remote_address))
            {
                continue;
            }
            if (cl->netchan.qport != qport)
            {
                continue;
            }
            if (cl->netchan.remote_address.port != net_from.port)
            {
                Com_Printf("SV_ReadPackets: fixing up a translated port\n");
                cl->netchan.remote_address.port = net_from.port;
            }

            if (Netchan_Process(&cl->netchan, &net_message))
            {                   // this is a valid, sequenced packet, so process it
                if (cl->state != cs_zombie)
                {
                    cl->lastmessage = svs.realtime;                     // don't timeout
                    SV_ExecuteClientMessage(cl);
                }
            }
            break;
        }

        if (i != maxclients->value)
        {
            continue;
        }
    }
}
示例#2
0
void NET_Event(fd_set *fdr)
{
	byte bufData[MAX_MSGLEN + 1];
	netadr_t from;
	msg_t netmsg;
	
	while(1)
	{
		MSG_Init(&netmsg, bufData, sizeof(bufData));

		if(NET_GetPacket(&from, &netmsg, fdr))
		{
			if(net_dropsim->value > 0.0f && net_dropsim->value <= 100.0f)
			{
				// com_dropsim->value percent of incoming packets get dropped.
				if(rand() < (int) (((double) RAND_MAX) / 100.0 * (double) net_dropsim->value))
					continue;          // drop this packet
			}

			if(com_sv_running->integer)
				Com_RunAndTimeServerPacket(&from, &netmsg);
			else
				CL_PacketEvent(from, &netmsg);
		}
		else
			break;
	}
}
示例#3
0
文件: cl_main.c 项目: Reedych/xash3d
/*
====================
CL_GetMessage

Handles recording and playback of demos, on top of NET_ code
====================
*/
static qboolean CL_GetMessage( byte *data, size_t *length )
{
	if( cls.demoplayback )
	{
		return CL_DemoReadMessage( data, length );
	}

	return NET_GetPacket( NS_CLIENT, &net_from, data, length );
}
示例#4
0
void SV_ReadPackets()
{
	guard(SV_ReadPackets);

	while (NET_GetPacket(NS_SERVER, &net_from, &net_message))
	{
		// check for connectionless packet (0xffffffff) first
		if (*(int *)net_message.data == -1)
		{
			SV_ConnectionlessPacket();
			continue;
		}

		// read the qport out of the message so we can fix up
		// stupid address translating routers
		net_message.BeginReading();
		MSG_ReadLong(&net_message);		// sequence number
		MSG_ReadLong(&net_message);		// sequence number
		int qport = MSG_ReadShort(&net_message) & 0xFFFF;

		// check for packets from connected clients
		int		i;
		client_t *cl;
		for (i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++)
		{
			if (cl->state == cs_free)
				continue;
			// compare address: ignore network port, but use qport
			if (!NET_CompareBaseAdr(&net_from, &cl->netchan.remote_address))
				continue;
			if (cl->netchan.port != qport)
				continue;
			// found a client
			if (cl->netchan.remote_address.port != net_from.port)
			{
				appWPrintf("SV_ReadPackets: fixing up a translated port\n");
				cl->netchan.remote_address.port = net_from.port;
			}

			if (cl->netchan.Process(&net_message))
			{	// this is a valid, sequenced packet, so process it
				if (cl->state != cs_zombie)
				{
					cl->lastmessage = svs.realtime;	// don't timeout
					SV_ExecuteClientMessage(cl);
				}
			}
			break;
		}

//		if (i != sv_maxclients->integer) continue;
	}

	unguard;
}
示例#5
0
/*
====================
CL_GetMessage

Handles recording and playback of demos, on top of NET_ code
====================
*/
qboolean CL_GetMessage (void)
{
	if	(cls.demoplayback)
		return CL_GetDemoMessage ();

	if (!NET_GetPacket ())
		return false;

	CL_WriteDemoMessage (&net_message);
	
	return true;
}
示例#6
0
/*
====================
CL_GetMessage

Handles recording and playback of demos, on top of NET_ code
====================
*/
int CL_GetMessage( byte *data, size_t *length )
{
	if( cls.demoplayback )
	{
		if( CL_DemoReadMessage( data, length ))
			return true;
		return false;
	}

	if( NET_GetPacket( NS_CLIENT, &net_from, data, length ))
		return true;
	return false;
}
示例#7
0
static void
qtv_read_packets (void)
{
	connection_t *con;

	while (NET_GetPacket ()) {
		if ((con = Connection_Find (&net_from))) {
			con->handler (con, con->object);
		} else if (*(int *) net_message->message->data == -1) {
			qtv_connectionless_packet ();
		}
	}
}
示例#8
0
/*
=================
SV_ReadPackets
=================
*/
static void SV_ReadPackets (void)
{
	int			i;
	client_t	*cl;

	while (NET_GetPacket ())
	{
		if (SV_FilterPacket ())
		{
			SV_SendBan ();	// tell them we aren't listening...
			continue;
		}

		// check for connectionless packet (0xffffffff) first
		if (*(int *)net_message.data == -1)
		{
			SV_ConnectionlessPacket ();
			continue;
		}

		// check for packets from connected clients
		for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
		{
			if (cl->state == cs_free)
				continue;
			if (!NET_CompareAdr (net_from, cl->netchan.remote_address))
				continue;
			if (Netchan_Process(&cl->netchan))
			{	// this is a valid, sequenced packet, so process it
				svs.stats.packets++;
				cl->send_message = true;	// reply at end of frame
				if (cl->state != cs_zombie)
					SV_ExecuteClientMessage (cl);
			}
			break;
		}

		if (i != MAX_CLIENTS)
			continue;

		// packet is not from a known client
		//	Con_Printf ("%s:sequenced packet without connection\n", NET_AdrToString(net_from));
	}
}
示例#9
0
文件: sv_main.c 项目: matatk/agrip
/*
=================
SV_ReadPackets
=================
*/
void SV_ReadPackets (void)
{
	int			i;
	client_t	*cl;
	int			qport;

	// first deal with delayed packets from connected clients
	for (i = 0, cl=svs.clients; i < MAX_CLIENTS; i++, cl++) {
		if (cl->state == cs_free)
			continue;

		net_from = cl->netchan.remote_address;

		while (cl->packets && svs.realtime - cl->packets->time >= cl->delay) {
			SZ_Clear(&net_message);
			SZ_Write(&net_message, cl->packets->msg.data, cl->packets->msg.cursize);
			SV_ExecuteClientMessage(cl);
			SV_FreeHeadDelayedPacket(cl);
		}		
	}

	// now deal with new packets
	while (NET_GetPacket(NS_SERVER))
	{
		if (SV_FilterPacket ())
		{
			SV_SendBan ();	// tell them we aren't listening...
			continue;
		}

		// check for connectionless packet (0xffffffff) first
		if (*(int *)net_message.data == -1)
		{
			SV_ConnectionlessPacket ();
			continue;
		}
		
		// read the qport out of the message so we can fix up
		// stupid address translating routers
		MSG_BeginReading ();
		MSG_ReadLong ();		// sequence number
		MSG_ReadLong ();		// sequence number
		qport = MSG_ReadShort () & 0xffff;

		// check which client sent this packet
		for (i=0, cl=svs.clients ; i<MAX_CLIENTS ; i++,cl++)
		{
			if (cl->state == cs_free)
				continue;
			if (!NET_CompareBaseAdr (net_from, cl->netchan.remote_address))
				continue;
			if (cl->netchan.qport != qport)
				continue;
			if (cl->netchan.remote_address.port != net_from.port)
			{
				Com_DPrintf ("SV_ReadPackets: fixing up a translated port\n");
				cl->netchan.remote_address.port = net_from.port;
			}

			break;
		}

		if (i == MAX_CLIENTS)
			continue;

		// ok, we know who sent this packet, but do we need to delay executing it?
		if (cl->delay > 0) {
			if (!svs.free_packets) // packet has to be dropped..
				break;

			// insert at end of list
			if (!cl->packets) {
				cl->last_packet = cl->packets = svs.free_packets;
			} else {
				// this works because '=' associates from right to left
				cl->last_packet = cl->last_packet->next = svs.free_packets;
			}

			svs.free_packets = svs.free_packets->next;
			cl->last_packet->next = NULL;
			
			cl->last_packet->time = svs.realtime;
			SZ_Clear(&cl->last_packet->msg);
			SZ_Write(&cl->last_packet->msg, net_message.data, net_message.cursize);
		} else {
			SV_ExecuteClientMessage (cl);
		}
	}
}
示例#10
0
void G_Ticker (void)
{
	int 		buf;
	gamestate_t	oldgamestate;
	size_t i;

	// Run client tics;
	CL_RunTics ();

	// do player reborns if needed
	if(serverside)
		for (i = 0; i < players.size(); i++)
			if (players[i].ingame() && players[i].playerstate == PST_REBORN)
				G_DoReborn (players[i]);

	// do things to change the game state
	oldgamestate = gamestate;
	while (gameaction != ga_nothing)
	{
		switch (gameaction)
		{
		case ga_loadlevel:
			G_DoLoadLevel (-1);
			break;
		case ga_newgame:
			G_DoNewGame ();
			break;
		case ga_loadgame:
			gameaction = ga_nothing;
			break;
		case ga_savegame:
			gameaction = ga_nothing;
			break;
		case ga_playdemo:
			G_DoPlayDemo ();
			break;
		case ga_completed:
			G_DoCompleted ();
			break;
		case ga_victory:
		    gameaction = ga_nothing;
			break;
		case ga_worlddone:
			G_DoWorldDone ();
			break;
		case ga_screenshot:
			I_ScreenShot(shotfile.c_str());
			gameaction = ga_nothing;
			break;
		case ga_fullconsole:
			C_FullConsole ();
			gameaction = ga_nothing;
			break;
		case ga_nothing:
			break;
		}
		C_AdjustBottom ();
	}

    // get commands
    buf = gametic%BACKUPTICS;
	memcpy (&consoleplayer().cmd, &consoleplayer().netcmds[buf], sizeof(ticcmd_t));

    static int realrate = 0;
    int packet_size;

	if (demoplayback)
		G_ReadDemoTiccmd(); // play all player commands
	if (demorecording)
		G_WriteDemoTiccmd(); // read in all player commands

    if (connected)
    {
       while ((packet_size = NET_GetPacket()) )
       {
		   // denis - don't accept candy from strangers
		   if(!NET_CompareAdr(serveraddr, net_from))
			  break;

           realrate += packet_size;
		   last_received = gametic;
		   noservermsgs = false;

		   CL_ReadPacketHeader();
           CL_ParseCommands();

		   if (gameaction == ga_fullconsole) // Host_EndGame was called
			   return;
       }

       if (!(gametic%TICRATE))
       {
          netin = realrate;
          realrate = 0;
       }

       if (!noservermsgs)
		   CL_SendCmd();  // send console commands to the server

       CL_SaveCmd();      // save console commands

       if (!(gametic%TICRATE))
       {
           netout = outrate;
           outrate = 0;
       }

	   if (gametic - last_received > 65)
		   noservermsgs = true;
	}
	else if (NET_GetPacket() )
	{
		// denis - don't accept candy from strangers
		if((gamestate == GS_DOWNLOAD || gamestate == GS_CONNECTING)
			&& NET_CompareAdr(serveraddr, net_from))
		{
			int type = MSG_ReadLong();

			if(type == CHALLENGE)
			{
				CL_PrepareConnect();
			}
			else if(type == 0)
			{
				if (!CL_Connect())
					memset (&serveraddr, 0, sizeof(serveraddr));

				connecttimeout = 0;
			}
			else
			{
				// we are already connected to this server, quit first
				MSG_WriteMarker(&net_buffer, clc_disconnect);
				NET_SendPacket(net_buffer, serveraddr);
			}
		}
	}

	// check for special buttons
	if(serverside && consoleplayer().ingame())
    {
		player_t &player = consoleplayer();

		if (player.cmd.ucmd.buttons & BT_SPECIAL)
		{
			switch (player.cmd.ucmd.buttons & BT_SPECIALMASK)
			{
			  case BTS_PAUSE:
				paused ^= 1;
				if (paused)
					S_PauseSound ();
				else
					S_ResumeSound ();
				break;

			  case BTS_SAVEGAME:
				if (!savedescription[0])
					strcpy (savedescription, "NET GAME");
				savegameslot =  (player.cmd.ucmd.buttons & BTS_SAVEMASK)>>BTS_SAVESHIFT;
				gameaction = ga_savegame;
				break;
			}
		}
    }
示例#11
0
文件: sv_main.c 项目: n00ner/xash3d
/*
=================
SV_ReadPackets
=================
*/
void SV_ReadPackets( void )
{
	sv_client_t	*cl;
	int		i, qport, curSize;

	while( NET_GetPacket( NS_SERVER, &net_from, net_message_buffer, &curSize ))
	{
		BF_Init( &net_message, "ClientPacket", net_message_buffer, curSize );

		// check for connectionless packet (0xffffffff) first
		if( BF_GetMaxBytes( &net_message ) >= 4 && *(int *)net_message.pData == -1 )
		{
			SV_ConnectionlessPacket( net_from, &net_message );
			continue;
		}

		// read the qport out of the message so we can fix up
		// stupid address translating routers
		BF_Clear( &net_message );
		BF_ReadLong( &net_message );	// sequence number
		BF_ReadLong( &net_message );	// sequence number
		qport = (int)BF_ReadShort( &net_message ) & 0xffff;

		// check for packets from connected clients
		for( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ )
		{
			if( cl->state == cs_free || cl->fakeclient )
				continue;

			if( !NET_CompareBaseAdr( net_from, cl->netchan.remote_address ))
				continue;

			if( cl->netchan.qport != qport )
				continue;

			if( cl->netchan.remote_address.port != net_from.port )
			{
				MsgDev( D_INFO, "SV_ReadPackets: fixing up a translated port\n");
				cl->netchan.remote_address.port = net_from.port;
			}

			if( Netchan_Process( &cl->netchan, &net_message ))
			{	
				cl->send_message = true; // reply at end of frame

				// this is a valid, sequenced packet, so process it
				if( cl->state != cs_zombie )
				{
					cl->lastmessage = host.realtime; // don't timeout
					SV_ExecuteClientMessage( cl, &net_message );
					svgame.globals->frametime = host.frametime;
					svgame.globals->time = sv.time;
				}
			}

			// fragmentation/reassembly sending takes priority over all game messages, want this in the future?
			if( Netchan_IncomingReady( &cl->netchan ))
			{
				if( Netchan_CopyNormalFragments( &cl->netchan, &net_message ))
				{
					BF_Clear( &net_message );
					SV_ExecuteClientMessage( cl, &net_message );
				}

				if( Netchan_CopyFileFragments( &cl->netchan, &net_message ))
				{
					SV_ProcessFile( cl, cl->netchan.incomingfilename );
				}
			}
			break;
		}

		if( i != sv_maxclients->integer )
			continue;
	}
}
示例#12
0
文件: sv_main.c 项目: hettoo/racesow
/*
* SV_ReadPackets
*/
static void SV_ReadPackets( void )
{
	int i, socketind, ret;
	client_t *cl;
#ifdef TCP_SUPPORT
	socket_t newsocket;
	netadr_t mmserver;
#endif
	int game_port;
	socket_t *socket;
	netadr_t address;

	static msg_t msg;
	static qbyte msgData[MAX_MSGLEN];

	socket_t* sockets [] =
	{
		&svs.socket_loopback,
		&svs.socket_udp,
		&svs.socket_udp6,
	};

#ifdef TCP_SUPPORT

	if( SV_MM_Initialized() ) 
		SV_MM_NetAddress( &mmserver );

	if( svs.socket_tcp.open )
	{
		while( qtrue )
		{
			// find a free slot
			for( i = 0; i < MAX_INCOMING_CONNECTIONS; i++ )
			{
				if( !svs.incoming[i].active )
					break;
			}
			if( i == MAX_INCOMING_CONNECTIONS )
				break;

			if( ( ret = NET_Accept( &svs.socket_tcp, &newsocket, &address ) ) == 0 )
				break;
			if( ret == -1 )
			{
				Com_Printf( "NET_Accept: Error: %s\n", NET_ErrorString() );
				continue;
			}

			Com_Printf( "New TCP connection from %s\n", NET_AddressToString( &address ) );

			svs.incoming[i].active = qtrue;
			svs.incoming[i].socket = newsocket;
			svs.incoming[i].address = address;
			svs.incoming[i].time = svs.realtime;
		}
	}

	for( i = 0; i < MAX_INCOMING_CONNECTIONS; i++ )
	{
		if( !svs.incoming[i].active )
			continue;

		ret = NET_GetPacket( &svs.incoming[i].socket, &address, &msg );
		if( ret == -1 )
		{
			Com_Printf( "NET_GetPacket: Error: %s\n", NET_ErrorString() );
			NET_CloseSocket( &svs.incoming[i].socket );
			svs.incoming[i].active = qfalse;
		}
		else if( ret == 1 )
		{
			if( SV_MM_Initialized() && NET_CompareBaseAddress( &mmserver, &address ) )
			{
				Com_DPrintf( "TCP packet from matchmaker\n" );
				SV_MM_SetConnection( &svs.incoming[i] );
				SV_MM_Packet( &msg );
				SV_MM_SetConnection( NULL );
				continue;
			}
			if( *(int *)msg.data != -1 )
			{
				Com_Printf( "Sequence packet without connection\n" );
				NET_CloseSocket( &svs.incoming[i].socket );
				svs.incoming[i].active = qfalse;
				continue;
			}

			Com_Printf( "Connectionless TCP packet from: %s\n", NET_AddressToString( &address ) );

			SV_ConnectionlessPacket( &svs.incoming[i].socket, &address, &msg );
		}
	}
#endif

	MSG_Init( &msg, msgData, sizeof( msgData ) );

	for( socketind = 0; socketind < sizeof( sockets ) / sizeof( sockets[0] ); socketind++ )
	{
		socket = sockets[socketind];

		if( !socket->open )
			continue;

		while( ( ret = NET_GetPacket( socket, &address, &msg ) ) != 0 )
		{
			if( ret == -1 )
			{
				Com_Printf( "NET_GetPacket: Error: %s\n", NET_ErrorString() );
				continue;
			}

			// check for connectionless packet (0xffffffff) first
			if( *(int *)msg.data == -1 )
			{
				SV_ConnectionlessPacket( socket, &address, &msg );
				continue;
			}

			// read the game port out of the message so we can fix up
			// stupid address translating routers
			MSG_BeginReading( &msg );
			MSG_ReadLong( &msg ); // sequence number
			MSG_ReadLong( &msg ); // sequence number
			game_port = MSG_ReadShort( &msg ) & 0xffff;
			// data follows

			// check for packets from connected clients
			for( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ )
			{
				unsigned short addr_port;

				if( cl->state == CS_FREE || cl->state == CS_ZOMBIE )
					continue;
				if( cl->edict && ( cl->edict->r.svflags & SVF_FAKECLIENT ) )
					continue;
				if( !NET_CompareBaseAddress( &address, &cl->netchan.remoteAddress ) )
					continue;
				if( cl->netchan.game_port != game_port )
					continue;

				addr_port = NET_GetAddressPort( &address );
				if( NET_GetAddressPort( &cl->netchan.remoteAddress ) != addr_port )
				{
					Com_Printf( "SV_ReadPackets: fixing up a translated port\n" );
					NET_SetAddressPort( &cl->netchan.remoteAddress, addr_port );
				}

				if( SV_ProcessPacket( &cl->netchan, &msg ) ) // this is a valid, sequenced packet, so process it
				{
					cl->lastPacketReceivedTime = svs.realtime;
					SV_ParseClientMessage( cl, &msg );
				}
				break;
			}
		}
	}

	// handle clients with individual sockets
	for( i = 0; i < sv_maxclients->integer; i++ )
	{
		cl = &svs.clients[i];

		if( cl->state == CS_ZOMBIE || cl->state == CS_FREE )
			continue;

		if( !cl->individual_socket )
			continue;

		// not while, we only handle one packet per client at a time here
		if( ( ret = NET_GetPacket( cl->netchan.socket, &address, &msg ) ) != 0 )
		{
			if( ret == -1 )
			{
				Com_Printf( "Error receiving packet from %s: %s\n", NET_AddressToString( &cl->netchan.remoteAddress ),
					NET_ErrorString() );
				if( cl->reliable )
					SV_DropClient( cl, DROP_TYPE_GENERAL, "Error receiving packet: %s", NET_ErrorString() );
			}
			else
			{
				if( SV_ProcessPacket( &cl->netchan, &msg ) )
				{
					// this is a valid, sequenced packet, so process it
					cl->lastPacketReceivedTime = svs.realtime;
					SV_ParseClientMessage( cl, &msg );
				}
			}
		}
	}
}
示例#13
0
文件: peer.c 项目: deurk/qwfwd
static void FWD_network_update(void)
{
	fd_set rfds;
	struct timeval tv;
	int retval;
	int i1;
	peer_t *p;

	FD_ZERO(&rfds);

	// select on main server socket
	FD_SET(net_socket, &rfds);
	i1 = net_socket + 1;

	for (p = peers; p; p = p->next)
	{
		// select on peers sockets
		FD_SET(p->s, &rfds);
		if (p->s >= i1)
			i1 = p->s + 1;
	}

// if not DLL - read stdin
#ifndef APP_DLL
	#ifndef _WIN32
	// try read stdin only if connected to a terminal.
	if (isatty(STDIN) && isatty(STDOUT))
	{
		FD_SET(STDIN, &rfds);
		if (STDIN >= i1)
			i1 = STDIN + 1;
	}
	#endif // _WIN32
#endif

	/* Sleep for some time, wake up immidiately if there input packet. */
	tv.tv_sec = 0;
	tv.tv_usec = 100000; // 100 ms
	retval = select(i1, &rfds, (fd_set *)0, (fd_set *)0, &tv);

	// read console input.
	// NOTE: we do not do that if we are in DLL mode...
	Sys_ReadSTDIN(&ps, rfds);

	if (retval <= 0)
		return;

	// if we have input packet on main server/proxy socket, then read it
	if(FD_ISSET(net_socket, &rfds))
	{
		qbool connectionless;
		int cnt;

		// read it
		for(;;)
		{
			if (!NET_GetPacket(net_socket, &net_message))
				break;

			// check for bans.
			if (SV_IsBanned(&net_from))
				continue;

			if (net_message.cursize == 1 && net_message.data[0] == A2A_ACK)
			{
				QRY_SV_PingReply();

				continue;
			}

			MSG_BeginReading();
			connectionless = (MSG_ReadLong() == -1);

			if (connectionless)
			{
				if (MSG_BadRead())
					continue;

				if (!SV_ConnectionlessPacket())
					continue; // seems we do not need forward it
			}

			// search in peers
			for (p = peers; p; p = p->next)
			{
				// we have this peer already, so forward/send packet to remote server
				if (NET_CompareAddress(&p->from, &net_from))
					break;
			}

			// peer was not found
			if (!p)
				continue;

			// forward data to the server/proxy
			if (p->ps >= ps_connected)
			{
				cnt = 1; // one packet by default

				// check for "drop" aka client disconnect,
				// first 10 bytes for NON connectionless packet is netchan related shit in QW
				if (p->proto == pr_qw && !connectionless && net_message.cursize > 10 && net_message.data[10] == clc_stringcmd)
				{
					if (!strcmp((char*)net_message.data + 10 + 1, "drop"))
					{
//						Sys_Printf("peer drop detected\n");
						p->ps = ps_drop; // drop peer ASAP
						cnt = 3; // send few packets due to possibile packet lost
					}
				}

				for ( ; cnt > 0; cnt--)
					NET_SendPacket(p->s, net_message.cursize, net_message.data, &p->to);
			}

			time(&p->last);
		}
	}

	// now lets check peers sockets, perhaps we have input packets too
	for (p = peers; p; p = p->next)
	{
		if(FD_ISSET(p->s, &rfds))
		{
			// yeah, we have packet, read it then
			for (;;)
			{
				if (!NET_GetPacket(p->s, &net_message))
					break;

				// check for bans.
				if (SV_IsBanned(&net_from))
					continue;

				// we should check is this packet from remote server, this may be some evil packet from haxors...
				if (!NET_CompareAddress(&p->to, &net_from))
					continue;

				MSG_BeginReading();
				if (MSG_ReadLong() == -1)
				{
					if (MSG_BadRead())
						continue;

					if (!CL_ConnectionlessPacket(p))
						continue; // seems we do not need forward it

					NET_SendPacket(net_socket, net_message.cursize, net_message.data, &p->from);
					continue;
				}

				if (p->ps >= ps_connected)
					NET_SendPacket(net_socket, net_message.cursize, net_message.data, &p->from);

// qqshka: commented out
//				time(&p->last);

			} // for (;;)
		} // if(FD_ISSET(p->s, &rfds))

		if (p->ps == ps_challenge)
		{
			// send challenge time to time
			if (time(NULL) - p->connect > 2)
			{
				p->connect = time(NULL);
				Netchan_OutOfBandPrint(p->s, &p->to, "getchallenge%s", p->proto == pr_qw ? "\n" : "");
			}
		}
	} // for (p = peers; p; p = p->next)
}
示例#14
0
/*
* TV_Downstream_ReadPackets
*/
void TV_Downstream_ReadPackets( void )
{
	int i, socketind, ret, game_port;
	client_t *cl;
#ifdef TCP_SUPPORT
	socket_t newsocket;
#endif
	socket_t *socket;
	netadr_t address;
	msg_t msg;
	qbyte msgData[MAX_MSGLEN];

	socket_t* sockets [] =
	{
		&tvs.socket_udp,
		&tvs.socket_udp6,
	};

#ifdef TCP_SUPPORT
	if( tvs.socket_tcp.open )
	{
		while( qtrue )
		{
			// find a free slot
			for( i = 0; i < MAX_INCOMING_CONNECTIONS; i++ )
			{
				if( !tvs.incoming[i].active )
					break;
			}
			if( i == MAX_INCOMING_CONNECTIONS )
				break;

			if( ( ret = NET_Accept( &tvs.socket_tcp, &newsocket, &address ) ) == 0 )
				break;
			if( ret == -1 )
			{
				Com_Printf( "NET_Accept: Error: %s\n", NET_ErrorString() );
				continue;
			}

			tvs.incoming[i].active = qtrue;
			tvs.incoming[i].socket = newsocket;
			tvs.incoming[i].address = address;
			tvs.incoming[i].time = tvs.realtime;
		}
	}

	for( i = 0; i < MAX_INCOMING_CONNECTIONS; i++ )
	{
		if( !tvs.incoming[i].active )
			continue;

		ret = NET_GetPacket( &tvs.incoming[i].socket, &address, &msg );
		if( ret == -1 )
		{
			NET_CloseSocket( &tvs.incoming[i].socket );
			tvs.incoming[i].active = qfalse;
		}
		else if( ret == 1 )
		{
			if( *(int *)msg.data != -1 )
			{                  // sequence packet without upstreams
				NET_CloseSocket( &tvs.incoming[i].socket );
				tvs.incoming[i].active = qfalse;
				continue;
			}

			TV_Downstream_UpstreamlessPacket( &tvs.incoming[i].socket, &address, &msg );
		}
	}
#endif

	MSG_Init( &msg, msgData, sizeof( msgData ) );

	for( socketind = 0; socketind < sizeof( sockets ) / sizeof( sockets[0] ); socketind++ )
	{
		socket = sockets[socketind];

		while( socket->open && ( ret = NET_GetPacket( socket, &address, &msg ) ) != 0 )
		{
			if( ret == -1 )
			{
				Com_Printf( "NET_GetPacket: Error: %s\n", NET_ErrorString() );
				continue;
			}

			// check for upstreamless packet (0xffffffff) first
			if( *(int *)msg.data == -1 )
			{
				TV_Downstream_UpstreamlessPacket( socket, &address, &msg );
				continue;
			}

			// read the game port out of the message so we can fix up
			// stupid address translating routers
			MSG_BeginReading( &msg );
			MSG_ReadLong( &msg ); // sequence number
			MSG_ReadLong( &msg ); // sequence number
			game_port = MSG_ReadShort( &msg ) & 0xffff;
			// data follows

			// check for packets from connected clients
			for( i = 0, cl = tvs.clients; i < tv_maxclients->integer; i++, cl++ )
			{
				unsigned short remoteaddr_port, addr_port;

				if( cl->state == CS_FREE || cl->state == CS_ZOMBIE )
					continue;
				if( !NET_CompareBaseAddress( &address, &cl->netchan.remoteAddress ) )
					continue;
				if( cl->netchan.game_port != game_port )
					continue;

				remoteaddr_port = NET_GetAddressPort( &cl->netchan.remoteAddress );
				addr_port = NET_GetAddressPort( &address );
				if( remoteaddr_port != addr_port )
				{
					Com_DPrintf( "%s" S_COLOR_WHITE ": Fixing up a translated port from %i to %i\n", cl->name,
						remoteaddr_port, addr_port );
					NET_SetAddressPort( &cl->netchan.remoteAddress, addr_port );
				}

				if( TV_Downstream_ProcessPacket( &cl->netchan, &msg ) )
				{                                           // this is a valid, sequenced packet, so process it
					cl->lastPacketReceivedTime = tvs.realtime;
					TV_Downstream_ParseClientMessage( cl, &msg );
				}
				break;
			}
		}
	}

	// handle clients with individual sockets
	for( i = 0; i < tv_maxclients->integer; i++ )
	{
		cl = &tvs.clients[i];

		if( cl->state == CS_ZOMBIE || cl->state == CS_FREE )
			continue;

		if( !cl->individual_socket )
			continue;

		// not while, we only handle one packet per client at a time here
		if( ( ret = NET_GetPacket( cl->netchan.socket, &address, &msg ) ) != 0 )
		{
			if( ret == -1 )
			{
				Com_Printf( "%s" S_COLOR_WHITE ": Error receiving packet: %s\n", cl->name, NET_ErrorString() );
				if( cl->reliable )
					TV_Downstream_DropClient( cl, DROP_TYPE_GENERAL, "Error receiving packet: %s", NET_ErrorString() );
			}
			else
			{
				if( *(int *)msg.data == -1 )
				{
					TV_Downstream_UpstreamlessPacket( cl->netchan.socket, &address, &msg );
				}
				else
				{
					if( TV_Downstream_ProcessPacket( &cl->netchan, &msg ) )
					{
						cl->lastPacketReceivedTime = tvs.realtime;
						TV_Downstream_ParseClientMessage( cl, &msg );
					}
				}
			}
		}
	}
}