static
void SV_UserVoip( client_t *cl, msg_t *msg ) {
const int sender = (int) (cl - svs.clients);
const int generation = MSG_ReadByte(msg);
const int sequence = MSG_ReadLong(msg);
const int frames = MSG_ReadByte(msg);
const int recip1 = MSG_ReadLong(msg);
const int recip2 = MSG_ReadLong(msg);
const int recip3 = MSG_ReadLong(msg);
const int packetsize = MSG_ReadShort(msg);
byte encoded[sizeof (cl->voipPacket[0].data)];
client_t *client = NULL;
voipServerPacket_t *packet = NULL;
int i;
if (generation < 0)
return; // short/invalid packet, bail.
else if (sequence < 0)
return; // short/invalid packet, bail.
else if (frames < 0)
return; // short/invalid packet, bail.
else if (recip1 < 0)
return; // short/invalid packet, bail.
else if (recip2 < 0)
return; // short/invalid packet, bail.
else if (recip3 < 0)
return; // short/invalid packet, bail.
else if (packetsize < 0)
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?
// (the three recip* values are 31 bits each (ignores sign bit so we can
// get a -1 error from MSG_ReadLong() ... ), allowing for 93 clients.)
assert( sv_maxclients->integer < 93 );
// 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 support disabled.
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.
else if ( ((i >= 0) && (i < 31)) && ((recip1 & (1 << (i-0))) == 0) )
continue; // not addressed to this player.
else if ( ((i >= 31) && (i < 62)) && ((recip2 & (1 << (i-31))) == 0) )
continue; // not addressed to this player.
else if ( ((i >= 62) && (i < 93)) && ((recip3 & (1 << (i-62))) == 0) )
continue; // not addressed to this player.
// Transmit this packet to the client.
// !!! FIXME: I don't like this queueing system.
if (client->queuedVoipPackets >= (sizeof (client->voipPacket) / sizeof (client->voipPacket[0]))) {
Com_Printf("Too many VoIP packets queued for client #%d\n", i);
continue; // no room for another packet right now.
}
packet = &client->voipPacket[client->queuedVoipPackets];
packet->sender = sender;
packet->frames = frames;
packet->len = packetsize;
packet->generation = generation;
packet->sequence = sequence;
memcpy(packet->data, encoded, packetsize);
client->queuedVoipPackets++;
}
}
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++;
}
}
