static
void SV_UserVoip(client_t *cl, msg_t *msg)
{
int sender, generation, sequence, frames, packetsize;
uint8_t recips[(MAX_CLIENTS + 7) / 8];
int flags;
byte encoded[sizeof(cl->voipPacket[0]->data)];
client_t *client = NULL;
voipServerPacket_t *packet = NULL;
int i;
sender = cl - svs.clients;
generation = MSG_ReadByte(msg);
sequence = MSG_ReadLong(msg);
frames = MSG_ReadByte(msg);
MSG_ReadData(msg, recips, sizeof(recips));
flags = MSG_ReadByte(msg);
packetsize = MSG_ReadShort(msg);
if (msg->readcount > msg->cursize)
return; // short/invalid packet, bail.
if (packetsize > sizeof (encoded)) { // overlarge packet?
int bytesleft = packetsize;
while (bytesleft) {
int br = bytesleft;
if (br > sizeof (encoded))
br = sizeof (encoded);
MSG_ReadData(msg, encoded, br);
bytesleft -= br;
}
return; // overlarge packet, bail.
}
MSG_ReadData(msg, encoded, packetsize);
if (SV_ShouldIgnoreVoipSender(cl))
return; // Blacklisted, disabled, etc.
// !!! FIXME: see if we read past end of msg...
// !!! FIXME: reject if not speex narrowband codec.
// !!! FIXME: decide if this is bogus data?
// decide who needs this VoIP packet sent to them...
for (i = 0, client = svs.clients; i < sv_maxclients->integer ; i++, client++) {
if (client->state != CS_ACTIVE)
continue; // not in the game yet, don't send to this guy.
else if (i == sender)
continue; // don't send voice packet back to original author.
else if (!client->hasVoip)
continue; // no VoIP support, or unsupported protocol
else if (client->muteAllVoip)
continue; // client is ignoring everyone.
else if (client->ignoreVoipFromClient[sender])
continue; // client is ignoring this talker.
else if (*cl->downloadName) // !!! FIXME: possible to DoS?
continue; // no VoIP allowed if downloading, to save bandwidth.
if(Com_IsVoipTarget(recips, sizeof(recips), i))
flags |= VOIP_DIRECT;
else
flags &= ~VOIP_DIRECT;
if (!(flags & (VOIP_SPATIAL | VOIP_DIRECT)))
continue; // not addressed to this player.
// Transmit this packet to the client.
if (client->queuedVoipPackets >= ARRAY_LEN(client->voipPacket)) {
Com_Printf("Too many VoIP packets queued for client #%d\n", i);
continue; // no room for another packet right now.
}
packet = Z_Malloc(sizeof(*packet));
packet->sender = sender;
packet->frames = frames;
packet->len = packetsize;
packet->generation = generation;
packet->sequence = sequence;
packet->flags = flags;
memcpy(packet->data, encoded, packetsize);
client->voipPacket[(client->queuedVoipIndex + client->queuedVoipPackets) % ARRAY_LEN(client->voipPacket)] = packet;
client->queuedVoipPackets++;
}
}
/*
===================
CL_WritePacket
Create and send the command packet to the server
Including both the reliable commands and the usercmds
During normal gameplay, a client packet will contain something like:
4 sequence number
2 qport
4 serverid
4 acknowledged sequence number
4 clc.serverCommandSequence
<optional reliable commands>
1 clc_move or clc_moveNoDelta
1 command count
<count * usercmds>
===================
*/
void CL_WritePacket( void ) {
msg_t buf;
byte data[MAX_MSGLEN];
int i, j;
usercmd_t *cmd, *oldcmd;
usercmd_t nullcmd;
int packetNum;
int oldPacketNum;
int count, key;
// don't send anything if playing back a demo
if ( clc.demoplaying || clc.state == CA_CINEMATIC ) {
return;
}
Com_Memset( &nullcmd, 0, sizeof(nullcmd) );
oldcmd = &nullcmd;
MSG_Init( &buf, data, sizeof(data) );
MSG_Bitstream( &buf );
// write the current serverId so the server
// can tell if this is from the current gameState
MSG_WriteLong( &buf, cl.serverId );
// write the last message we received, which can
// be used for delta compression, and is also used
// to tell if we dropped a gamestate
MSG_WriteLong( &buf, clc.serverMessageSequence );
// write the last reliable message we received
MSG_WriteLong( &buf, clc.serverCommandSequence );
// write any unacknowledged clientCommands
for ( i = clc.reliableAcknowledge + 1 ; i <= clc.reliableSequence ; i++ ) {
MSG_WriteByte( &buf, clc_clientCommand );
MSG_WriteLong( &buf, i );
MSG_WriteString( &buf, clc.reliableCommands[ i & (MAX_RELIABLE_COMMANDS-1) ] );
}
// we want to send all the usercmds that were generated in the last
// few packet, so even if a couple packets are dropped in a row,
// all the cmds will make it to the server
if ( cl_packetdup->integer < 0 ) {
Cvar_Set( "cl_packetdup", "0" );
} else if ( cl_packetdup->integer > 5 ) {
Cvar_Set( "cl_packetdup", "5" );
}
oldPacketNum = (clc.netchan.outgoingSequence - 1 - cl_packetdup->integer) & PACKET_MASK;
count = cl.cmdNumber - cl.outPackets[ oldPacketNum ].p_cmdNumber;
if ( count > MAX_PACKET_USERCMDS ) {
count = MAX_PACKET_USERCMDS;
Com_Printf("MAX_PACKET_USERCMDS\n");
}
#ifdef USE_VOIP
if (clc.voipOutgoingDataSize > 0)
{
if((clc.voipFlags & VOIP_SPATIAL) || Com_IsVoipTarget(clc.voipTargets, sizeof(clc.voipTargets), -1))
{
MSG_WriteByte (&buf, clc_voip);
MSG_WriteByte (&buf, clc.voipOutgoingGeneration);
MSG_WriteLong (&buf, clc.voipOutgoingSequence);
MSG_WriteByte (&buf, clc.voipOutgoingDataFrames);
MSG_WriteData (&buf, clc.voipTargets, sizeof(clc.voipTargets));
MSG_WriteByte(&buf, clc.voipFlags);
MSG_WriteShort (&buf, clc.voipOutgoingDataSize);
MSG_WriteData (&buf, clc.voipOutgoingData, clc.voipOutgoingDataSize);
// If we're recording a demo, we have to fake a server packet with
// this VoIP data so it gets to disk; the server doesn't send it
// back to us, and we might as well eliminate concerns about dropped
// and misordered packets here.
if(clc.demorecording && !clc.demowaiting)
{
const int voipSize = clc.voipOutgoingDataSize;
msg_t fakemsg;
byte fakedata[MAX_MSGLEN];
MSG_Init (&fakemsg, fakedata, sizeof (fakedata));
MSG_Bitstream (&fakemsg);
MSG_WriteLong (&fakemsg, clc.reliableAcknowledge);
MSG_WriteByte (&fakemsg, svc_voip);
MSG_WriteShort (&fakemsg, clc.clientNum);
MSG_WriteByte (&fakemsg, clc.voipOutgoingGeneration);
MSG_WriteLong (&fakemsg, clc.voipOutgoingSequence);
MSG_WriteByte (&fakemsg, clc.voipOutgoingDataFrames);
MSG_WriteShort (&fakemsg, clc.voipOutgoingDataSize );
MSG_WriteBits (&fakemsg, clc.voipFlags, VOIP_FLAGCNT);
MSG_WriteData (&fakemsg, clc.voipOutgoingData, voipSize);
MSG_WriteByte (&fakemsg, svc_EOF);
CL_WriteDemoMessage (&fakemsg, 0);
}
clc.voipOutgoingSequence += clc.voipOutgoingDataFrames;
clc.voipOutgoingDataSize = 0;
clc.voipOutgoingDataFrames = 0;
}
else
{
// We have data, but no targets. Silently discard all data
clc.voipOutgoingDataSize = 0;
clc.voipOutgoingDataFrames = 0;
}
}
#endif
if ( count >= 1 ) {
if ( cl_showSend->integer ) {
Com_Printf( "(%i)", count );
}
// begin a client move command
if ( cl_nodelta->integer || !cl.snap.valid || clc.demowaiting
|| clc.serverMessageSequence != cl.snap.messageNum ) {
MSG_WriteByte (&buf, clc_moveNoDelta);
} else {
MSG_WriteByte (&buf, clc_move);
}
// write the command count
MSG_WriteByte( &buf, count );
// use the checksum feed in the key
key = clc.checksumFeed;
// also use the message acknowledge
key ^= clc.serverMessageSequence;
// also use the last acknowledged server command in the key
key ^= MSG_HashKey(clc.serverCommands[ clc.serverCommandSequence & (MAX_RELIABLE_COMMANDS-1) ], 32);
// write all the commands, including the predicted command
for ( i = 0 ; i < count ; i++ ) {
j = (cl.cmdNumber - count + i + 1) & CMD_MASK;
cmd = &cl.cmds[j];
MSG_WriteDeltaUsercmdKey (&buf, key, oldcmd, cmd);
oldcmd = cmd;
}
}
//
// deliver the message
//
packetNum = clc.netchan.outgoingSequence & PACKET_MASK;
cl.outPackets[ packetNum ].p_realtime = cls.realtime;
cl.outPackets[ packetNum ].p_serverTime = oldcmd->serverTime;
cl.outPackets[ packetNum ].p_cmdNumber = cl.cmdNumber;
clc.lastPacketSentTime = cls.realtime;
if ( cl_showSend->integer ) {
Com_Printf( "%i ", buf.cursize );
}
CL_Netchan_Transmit (&clc.netchan, &buf);
}
/*
===================
CL_WritePacket
Create and send the command packet to the server
Including both the reliable commands and the usercmds
A client packet will contain something like:
4 sequence number
2 qport
4 serverid
4 acknowledged sequence number
4 clc.serverCommandSequence
<optional reliable commands>
1 clc_move or clc_moveNoDelta
1 command count
<count * usercmds>
===================
*/
void CL_WritePacket()
{
msg_t buf;
byte data[ MAX_MSGLEN ];
int i, j;
usercmd_t *cmd, *oldcmd;
usercmd_t nullcmd;
int packetNum;
int oldPacketNum;
int count;
// don't send anything if playing back a demo
if ( clc.demoplaying || cls.state == CA_CINEMATIC )
{
return;
}
memset( &nullcmd, 0, sizeof( nullcmd ) );
oldcmd = &nullcmd;
MSG_Init( &buf, data, sizeof( data ) );
MSG_Bitstream( &buf );
// write the current serverId so the server
// can tell if this is from the current gameState
MSG_WriteLong( &buf, cl.serverId );
// write the last message we received, which can
// be used for delta compression, and is also used
// to tell if we dropped a gamestate
MSG_WriteLong( &buf, clc.serverMessageSequence );
// write the last reliable message we received
MSG_WriteLong( &buf, clc.serverCommandSequence );
// write any unacknowledged clientCommands
// NOTE TTimo: if you verbose this, you will see that there are quite a few duplicates
// typically several unacknowledged cp or userinfo commands stacked up
for ( i = clc.reliableAcknowledge + 1; i <= clc.reliableSequence; i++ )
{
MSG_WriteByte( &buf, clc_clientCommand );
MSG_WriteLong( &buf, i );
MSG_WriteString( &buf, clc.reliableCommands[ i & ( MAX_RELIABLE_COMMANDS - 1 ) ] );
}
// we want to send all the usercmds that were generated in the last
// few packet, so even if a couple packets are dropped in a row,
// all the cmds will make it to the server
if ( cl_packetdup->integer < 0 )
{
Cvar_Set( "cl_packetdup", "0" );
}
else if ( cl_packetdup->integer > 5 )
{
Cvar_Set( "cl_packetdup", "5" );
}
oldPacketNum = ( clc.netchan.outgoingSequence - 1 - cl_packetdup->integer ) & PACKET_MASK;
count = cl.cmdNumber - cl.outPackets[ oldPacketNum ].p_cmdNumber;
if ( count > MAX_PACKET_USERCMDS )
{
count = MAX_PACKET_USERCMDS;
Com_Printf( "MAX_PACKET_USERCMDS" );
}
#ifdef USE_VOIP
if ( clc.voipOutgoingDataSize > 0 )
{
if ( ( clc.voipFlags & VOIP_SPATIAL ) || Com_IsVoipTarget( clc.voipTargets, sizeof( clc.voipTargets ), -1 ) )
{
MSG_WriteByte( &buf, clc_voip );
MSG_WriteByte( &buf, clc.voipOutgoingGeneration );
MSG_WriteLong( &buf, clc.voipOutgoingSequence );
MSG_WriteByte( &buf, clc.voipOutgoingDataFrames );
MSG_WriteData( &buf, clc.voipTargets, sizeof( clc.voipTargets ) );
MSG_WriteByte( &buf, clc.voipFlags );
MSG_WriteShort( &buf, clc.voipOutgoingDataSize );
MSG_WriteData( &buf, clc.voipOutgoingData, clc.voipOutgoingDataSize );
// If we're recording a demo, we have to fake a server packet with
// this VoIP data so it gets to disk; the server doesn't send it
// back to us, and we might as well eliminate concerns about dropped
// and misordered packets here.
if ( clc.demorecording && !clc.demowaiting )
{
const int voipSize = clc.voipOutgoingDataSize;
msg_t fakemsg;
byte fakedata[ MAX_MSGLEN ];
MSG_Init( &fakemsg, fakedata, sizeof( fakedata ) );
MSG_Bitstream( &fakemsg );
MSG_WriteLong( &fakemsg, clc.reliableAcknowledge );
MSG_WriteByte( &fakemsg, svc_voip );
MSG_WriteShort( &fakemsg, clc.clientNum );
MSG_WriteByte( &fakemsg, clc.voipOutgoingGeneration );
MSG_WriteLong( &fakemsg, clc.voipOutgoingSequence );
MSG_WriteByte( &fakemsg, clc.voipOutgoingDataFrames );
MSG_WriteShort( &fakemsg, clc.voipOutgoingDataSize );
MSG_WriteBits( &fakemsg, clc.voipFlags, VOIP_FLAGCNT );
MSG_WriteData( &fakemsg, clc.voipOutgoingData, voipSize );
MSG_WriteByte( &fakemsg, svc_EOF );
CL_WriteDemoMessage( &fakemsg, 0 );
}
clc.voipOutgoingSequence += clc.voipOutgoingDataFrames;
clc.voipOutgoingDataSize = 0;
clc.voipOutgoingDataFrames = 0;
}
else
{
// We have data, but no targets. Silently discard all data
clc.voipOutgoingDataSize = 0;
clc.voipOutgoingDataFrames = 0;
}
}
#endif
if ( count >= 1 )
{
if ( cl_showSend->integer )
{
Com_Printf( "(%i)", count );
}
// begin a client move command
if ( cl_nodelta->integer || !cl.snap.valid || clc.demowaiting || clc.serverMessageSequence != cl.snap.messageNum )
{
MSG_WriteByte( &buf, clc_moveNoDelta );
}
else
{
MSG_WriteByte( &buf, clc_move );
}
// write the command count
MSG_WriteByte( &buf, count );
// write all the commands, including the predicted command
for ( i = 0; i < count; i++ )
{
j = ( cl.cmdNumber - count + i + 1 ) & CMD_MASK;
cmd = &cl.cmds[ j ];
MSG_WriteDeltaUsercmd( &buf, oldcmd, cmd );
oldcmd = cmd;
}
}
//
// deliver the message
//
packetNum = clc.netchan.outgoingSequence & PACKET_MASK;
cl.outPackets[ packetNum ].p_realtime = cls.realtime;
cl.outPackets[ packetNum ].p_serverTime = oldcmd->serverTime;
cl.outPackets[ packetNum ].p_cmdNumber = cl.cmdNumber;
clc.lastPacketSentTime = cls.realtime;
if ( cl_showSend->integer )
{
Com_Printf("%i ", buf.cursize );
}
MSG_WriteByte( &buf, clc_EOF );
CL_WriteBinaryMessage( &buf );
Netchan_Transmit( &clc.netchan, buf.cursize, buf.data );
// clients never really should have messages large enough
// to fragment, but in case they do, fire them all off
// at once
// TTimo: this causes a packet burst, which is bad karma for winsock
// added a WARNING message, we'll see if there are legit situations where this happens
while ( clc.netchan.unsentFragments )
{
if ( cl_showSend->integer )
{
Com_Printf( "WARNING: unsent fragments (not supposed to happen!)" );
}
Netchan_TransmitNextFragment( &clc.netchan );
}
}
