/*
====================
CL_PlayDemo_f
play [demoname]
====================
*/
void CL_PlayDemo_f (void)
{
char name[256];
if (Cmd_Argc() != 2)
{
Con_Printf ("play <demoname> : plays a demo\n");
return;
}
//
// disconnect from server
//
CL_Disconnect ();
//
// open the demo file
//
strcpy (name, Cmd_Argv(1));
COM_DefaultExtension (name, ".qwd");
Con_Printf ("Playing demo from %s.\n", name);
COM_FOpenFile (name, &cls.demofile);
if (!cls.demofile)
{
Con_Printf ("ERROR: couldn't open.\n");
cls.demonum = -1; // stop demo loop
return;
}
cls.demoplayback = true;
cls.state = ca_demostart;
Netchan_Setup (&cls.netchan, net_from, 0);
realtime = 0;
}
/*
* TV_Upstream_ClientConnectPacket
* ClientConnect in client code
*/
static void TV_Upstream_ClientConnectPacket( upstream_t *upstream, msg_t *msg ) {
if( upstream->state != CA_CONNECTING ) {
return;
}
Netchan_Setup( &upstream->netchan, upstream->socket, &upstream->serveraddress, Netchan_GamePort() );
upstream->state = CA_HANDSHAKE;
TV_Upstream_AddReliableCommand( upstream, "new" );
Com_Printf( "%s" S_COLOR_WHITE ": Connected\n", upstream->name );
}
edict_t *SV_CreateBot ()
{
int i, numclients;
client_t *cl, *newcl;
edict_t *ent;
numclients = 0;
newcl = NULL;
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++) {
if (cl->state == cs_free) {
if (!newcl)
newcl = cl;
continue;
}
if (!cl->spectator)
numclients++;
}
if (numclients >= maxclients.value || !newcl)
return sv.edicts; // all player spots full, return world
newcl->clear();
newcl->state = cs_spawned;
newcl->bot = true;
newcl->userid = SV_GenerateUserID();
newcl->extensions = CLIENT_EXTENSIONS; // bots always use latest ZQuake :-)
// init a bogus network connection
SZ_Init (&newcl->datagram, newcl->datagram_buf, sizeof(newcl->datagram_buf));
newcl->datagram.allowoverflow = true;
Netchan_Setup (NS_SERVER, &newcl->netchan, net_null, 0);
// set up the edict
ent = EDICT_NUM((newcl - svs.clients) + 1);
newcl->edict = ent;
// Com_DPrintf ("Bot %s connected\n", newcl->name.c_str());
SetUpClientEdict (newcl, ent);
return ent;
}
void CheckQizmoCompletion (void)
{
DWORD ExitCode;
if (!hQizmoProcess)
return;
if (!GetExitCodeProcess (hQizmoProcess, &ExitCode)) {
Com_Printf ("WARINING: GetExitCodeProcess failed\n");
hQizmoProcess = NULL;
qwz_unpacking = false;
qwz_playback = false;
cls.demoplayback = cls.timedemo = false;
StopQWZPlayback ();
return;
}
if (ExitCode == STILL_ACTIVE)
return;
hQizmoProcess = NULL;
if (!qwz_unpacking || !cls.demoplayback) {
StopQWZPlayback ();
return;
}
qwz_unpacking = false;
cls.demofile = fopen (tempqwd_name, "rb");
if (!cls.demofile) {
Com_Printf ("Couldn't open %s\n", tempqwd_name);
qwz_playback = false;
cls.demoplayback = cls.timedemo = false;
return;
}
// start playback
cls.demoplayback = true;
cls.state = ca_demostart;
Netchan_Setup (NS_CLIENT, &cls.netchan, net_null, 0);
cls.demotime = 0;
}
/*
==================
SV_DirectConnect
A "connect" OOB command has been received
==================
*/
void SV_DirectConnect( netadr_t from, const Cmd::Args& args )
{
if ( args.Argc() < 2 )
{
return;
}
Log::Debug( "SVC_DirectConnect ()" );
InfoMap userinfo = InfoStringToMap(args.Argv(1));
// DHM - Nerve :: Update Server allows any protocol to connect
// NOTE TTimo: but we might need to store the protocol around for potential non http/ftp clients
int version = atoi( userinfo["protocol"].c_str() );
if ( version != PROTOCOL_VERSION )
{
Net::OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\nServer uses protocol version %i (yours is %i).", PROTOCOL_VERSION, version );
Log::Debug( " rejected connect from version %i", version );
return;
}
int qport = atoi( userinfo["qport"].c_str() );
auto clients_begin = svs.clients;
auto clients_end = clients_begin + sv_maxclients->integer;
client_t* reconnecting = std::find_if(clients_begin, clients_end,
[&from, qport](const client_t& client)
{
return NET_CompareBaseAdr( from, client.netchan.remoteAddress )
&& ( client.netchan.qport == qport || from.port == client.netchan.remoteAddress.port );
}
);
if ( reconnecting != clients_end &&
svs.time - reconnecting->lastConnectTime < sv_reconnectlimit->integer * 1000 )
{
Log::Debug( "%s: reconnect rejected: too soon", NET_AdrToString( from ) );
return;
}
if ( NET_IsLocalAddress( from ) )
{
userinfo["ip"] = "loopback";
}
else
{
// see if the challenge is valid (local clients don't need to challenge)
Challenge::Duration ping_duration;
if ( !ChallengeManager::MatchString( from, userinfo["challenge"], &ping_duration ) )
{
Net::OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\n[err_dialog]No or bad challenge for address." );
return;
}
userinfo["ip"] = NET_AdrToString( from );
}
client_t *new_client = nullptr;
// if there is already a slot for this IP address, reuse it
if ( reconnecting != clients_end )
{
Log::Notice( "%s:reconnect\n", NET_AdrToString( from ) );
new_client = reconnecting;
}
else
{
// find a client slot
// if "sv_privateClients" is set > 0, then that number
// of client slots will be reserved for connections that
// have "password" set to the value of "sv_privatePassword"
// Info requests will report the maxclients as if the private
// slots didn't exist, to prevent people from trying to connect
// to a full server.
// This is to allow us to reserve a couple slots here on our
// servers so we can play without having to kick people.
// check for privateClient password
int startIndex = 0;
if ( userinfo["password"] != sv_privatePassword->string )
{
// skip past the reserved slots
startIndex = sv_privateClients->integer;
}
new_client = std::find_if(clients_begin, clients_end,
[](const client_t& client) {
return client.state == clientState_t::CS_FREE;
});
if ( new_client == clients_end )
{
if ( NET_IsLocalAddress( from ) )
{
int count = std::count_if(clients_begin+startIndex, clients_end,
[](const client_t& client) { return SV_IsBot(&client); }
);
// if they're all bots
if ( count >= sv_maxclients->integer - startIndex )
{
SV_DropClient( &svs.clients[ sv_maxclients->integer - 1 ], "only bots on server" );
new_client = &svs.clients[ sv_maxclients->integer - 1 ];
}
else
{
Com_Error( errorParm_t::ERR_FATAL, "server is full on local connect" );
}
}
else
{
Net::OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\n%s", sv_fullmsg->string );
Log::Debug( "Rejected a connection." );
return;
}
}
}
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
memset( new_client, 0, sizeof( client_t ) );
int clientNum = new_client - svs.clients;
#ifdef HAVE_GEOIP
const char * country = NET_GeoIP_Country( &from );
if ( country )
{
Log::Notice( "Client %i connecting from %s\n", clientNum, country );
userinfo["geoip"] = country;
}
else
{
Log::Notice( "Client %i connecting from somewhere unknown\n", clientNum );
}
#else
Log::Notice( "Client %i connecting\n", clientNum );
#endif
new_client->gentity = SV_GentityNum( clientNum );
new_client->gentity->r.svFlags = 0;
// save the address
Netchan_Setup( netsrc_t::NS_SERVER, &new_client->netchan, from, qport );
// init the netchan queue
// Save the pubkey
Q_strncpyz( new_client->pubkey, userinfo["pubkey"].c_str(), sizeof( new_client->pubkey ) );
userinfo.erase("pubkey");
// save the userinfo
Q_strncpyz( new_client->userinfo, InfoMapToString(userinfo).c_str(), sizeof( new_client->userinfo ) );
// get the game a chance to reject this connection or modify the userinfo
char reason[ MAX_STRING_CHARS ];
if ( gvm.GameClientConnect( reason, sizeof( reason ), clientNum, true, false ) )
{
Net::OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\n[err_dialog]%s", reason );
Log::Debug( "Game rejected a connection: %s.", reason );
return;
}
SV_UserinfoChanged( new_client );
// send the connect packet to the client
Net::OutOfBandPrint( netsrc_t::NS_SERVER, from, "connectResponse" );
Log::Debug( "Going from CS_FREE to CS_CONNECTED for %s", new_client->name );
new_client->state = clientState_t::CS_CONNECTED;
new_client->nextSnapshotTime = svs.time;
new_client->lastPacketTime = svs.time;
new_client->lastConnectTime = svs.time;
// when we receive the first packet from the client, we will
// notice that it is from a different serverid and that the
// gamestate message was not just sent, forcing a retransmit
new_client->gamestateMessageNum = -1;
// if this was the first client on the server, or the last client
// the server can hold, send a heartbeat to the master.
int count = std::count_if(clients_begin, clients_end,
[](const client_t& client) {
return client.state >= clientState_t::CS_CONNECTED;
});
if ( count == 1 || count == sv_maxclients->integer )
{
SV_Heartbeat_f();
}
}
/*
* ==================
* SVC_DirectConnect
*
* A connection request that did not come from the master
* ==================
*/
void SVC_DirectConnect(void)
{
char userinfo[MAX_INFO_STRING];
netadr_t adr;
int i;
client_t *cl, *newcl;
client_t temp;
edict_t *ent;
int edictnum;
int version;
int qport;
int challenge;
int previousclients; // rich: connection limit per IP
adr = net_from;
Com_DPrintf("SVC_DirectConnect ()\n");
version = atoi(Cmd_Argv(1));
if (version != PROTOCOL_VERSION)
{
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\nServer is version %4.2f.\n", VERSION);
Com_DPrintf(" rejected connect from version %i\n", version);
return;
}
qport = atoi(Cmd_Argv(2));
challenge = atoi(Cmd_Argv(3));
// r1ch: limit connections from a single IP
previousclients = 0;
for (i = 0, cl = svs.clients; i < (int)maxclients->value; i++, cl++)
{
if (cl->state == cs_free)
{
continue;
}
if (NET_CompareBaseAdr(adr, cl->netchan.remote_address))
{
// r1ch: zombies are less dangerous
if (cl->state == cs_zombie)
{
previousclients++;
}
else
{
previousclients += 2;
}
}
}
if (previousclients >= (int)sv_iplimit->value * 2)
{
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\nToo many connections from your host.\n");
Com_DPrintf(" too many connections\n");
return;
}
// end r1ch fix
strncpy(userinfo, Cmd_Argv(4), sizeof(userinfo) - 1);
userinfo[sizeof(userinfo) - 1] = 0;
// force the IP key/value pair so the game can filter based on ip
Info_SetValueForKey(userinfo, "ip", NET_AdrToString(net_from));
// attractloop servers are ONLY for local clients
if (sv.attractloop)
{
if (!NET_IsLocalAddress(adr))
{
Com_Printf("Remote connect in attract loop. Ignored.\n");
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\nConnection refused.\n");
return;
}
}
// see if the challenge is valid
if (!NET_IsLocalAddress(adr))
{
for (i = 0; i < MAX_CHALLENGES; i++)
{
if (NET_CompareBaseAdr(net_from, svs.challenges[i].adr))
{
if (challenge == svs.challenges[i].challenge)
{
break; // good
}
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\nBad challenge.\n");
return;
}
}
if (i == MAX_CHALLENGES)
{
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\nNo challenge for address.\n");
return;
}
}
newcl = &temp;
memset(newcl, 0, sizeof(client_t));
// if there is already a slot for this ip, reuse it
for (i = 0, cl = svs.clients; i < maxclients->value; i++, cl++)
{
if (cl->state == cs_free)
{
continue;
}
if (NET_CompareBaseAdr(adr, cl->netchan.remote_address) &&
((cl->netchan.qport == qport) ||
(adr.port == cl->netchan.remote_address.port)))
{
if (!NET_IsLocalAddress(adr) && ((svs.realtime - cl->lastconnect) < ((int)sv_reconnect_limit->value * 1000)))
{
Com_DPrintf("%s:reconnect rejected : too soon\n", NET_AdrToString(adr));
return;
}
// r1ch: !! fix nasty bug where non-disconnected clients (from dropped disconnect
// packets) could be overwritten!
if (cl->state != cs_zombie)
{
Com_DPrintf(" client already found\n");
// If we legitly get here, spoofed udp isn't possible (passed challenge) and client addr/port combo
// is exactly the same, so we can assume its really a dropped/crashed client. i hope...
Com_Printf("Dropping %s, ghost reconnect\n", cl->name);
SV_DropClient(cl);
}
// end r1ch fix
Com_Printf("%s:reconnect\n", NET_AdrToString(adr));
SV_CleanClient(cl); // r1ch: clean up last client data
newcl = cl;
goto gotnewcl;
}
}
// find a client slot
newcl = NULL;
for (i = 0, cl = svs.clients; i < maxclients->value; i++, cl++)
{
if (cl->state == cs_free)
{
newcl = cl;
break;
}
}
if (!newcl)
{
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\nServer is full.\n");
Com_DPrintf("Rejected a connection.\n");
return;
}
gotnewcl:
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
*newcl = temp;
sv_client = newcl;
edictnum = (newcl - svs.clients) + 1;
ent = EDICT_NUM(edictnum);
newcl->edict = ent;
newcl->challenge = challenge; // save challenge for checksumming
// get the game a chance to reject this connection or modify the userinfo
if (!(ge->ClientConnect(ent, userinfo)))
{
if (*Info_ValueForKey(userinfo, "rejmsg"))
{
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\n%s\nConnection refused.\n",
Info_ValueForKey(userinfo, "rejmsg"));
}
else
{
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\nConnection refused.\n");
}
Com_DPrintf("Game rejected a connection.\n");
return;
}
// parse some info from the info strings
strncpy(newcl->userinfo, userinfo, sizeof(newcl->userinfo) - 1);
SV_UserinfoChanged(newcl);
// send the connect packet to the client
Netchan_OutOfBandPrint(NS_SERVER, adr, "client_connect");
Netchan_Setup(NS_SERVER, &newcl->netchan, adr, qport);
newcl->state = cs_connected;
SZ_Init(&newcl->datagram, newcl->datagram_buf, sizeof(newcl->datagram_buf));
newcl->datagram.allowoverflow = true;
newcl->lastmessage = svs.realtime; // don't timeout
newcl->lastconnect = svs.realtime;
}
/*
==================
SV_DirectConnect
A "connect" OOB command has been received
==================
*/
void SV_DirectConnect( netadr_t from ) {
char userinfo[MAX_INFO_STRING];
int i;
client_t *cl, *newcl;
MAC_STATIC client_t temp;
sharedEntity_t *ent;
int clientNum;
int version;
int qport;
int challenge;
char *password;
int startIndex;
char *denied;
int count;
char *ip;
#ifdef _XBOX
bool reconnect = false;
#endif
Com_DPrintf ("SVC_DirectConnect ()\n");
Q_strncpyz( userinfo, Cmd_Argv(1), sizeof(userinfo) );
version = atoi( Info_ValueForKey( userinfo, "protocol" ) );
if ( version != PROTOCOL_VERSION ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer uses protocol version %i.\n", PROTOCOL_VERSION );
Com_DPrintf (" rejected connect from version %i\n", version);
return;
}
challenge = atoi( Info_ValueForKey( userinfo, "challenge" ) );
qport = atoi( Info_ValueForKey( userinfo, "qport" ) );
// quick reject
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
/* This was preventing sv_reconnectlimit from working. It seems like commenting this
out has solved the problem. HOwever, if there is a future problem then it could
be this.
if ( cl->state == CS_FREE ) {
continue;
}
*/
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) ) {
if (( svs.time - cl->lastConnectTime)
< (sv_reconnectlimit->integer * 1000)) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nReconnect rejected : too soon\n" );
Com_DPrintf ("%s:reconnect rejected : too soon\n", NET_AdrToString (from));
return;
}
break;
}
}
// don't let "ip" overflow userinfo string
if ( NET_IsLocalAddress (from) )
ip = "localhost";
else
ip = (char *)NET_AdrToString( from );
if( ( strlen( ip ) + strlen( userinfo ) + 4 ) >= MAX_INFO_STRING ) {
NET_OutOfBandPrint( NS_SERVER, from,
"print\nUserinfo string length exceeded. "
"Try removing setu cvars from your config.\n" );
return;
}
Info_SetValueForKey( userinfo, "ip", ip );
// see if the challenge is valid (LAN clients don't need to challenge)
if ( !NET_IsLocalAddress (from) ) {
int ping;
for (i=0 ; i<MAX_CHALLENGES ; i++) {
if (NET_CompareAdr(from, svs.challenges[i].adr)) {
if ( challenge == svs.challenges[i].challenge ) {
break; // good
}
}
}
if (i == MAX_CHALLENGES) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nNo or bad challenge for address.\n" );
return;
}
ping = svs.time - svs.challenges[i].pingTime;
Com_Printf( SE_GetString("MP_SVGAME", "CLIENT_CONN_WITH_PING"), i, ping);//"Client %i connecting with %i challenge ping\n", i, ping );
svs.challenges[i].connected = qtrue;
// never reject a LAN client based on ping
if ( !Sys_IsLANAddress( from ) ) {
if ( sv_minPing->value && ping < sv_minPing->value ) {
// don't let them keep trying until they get a big delay
NET_OutOfBandPrint( NS_SERVER, from, va("print\n%s\n", SE_GetString("MP_SVGAME", "SERVER_FOR_HIGH_PING")));//Server is for high pings only\n" );
Com_DPrintf (SE_GetString("MP_SVGAME", "CLIENT_REJECTED_LOW_PING"), i);//"Client %i rejected on a too low ping\n", i);
// reset the address otherwise their ping will keep increasing
// with each connect message and they'd eventually be able to connect
svs.challenges[i].adr.port = 0;
return;
}
if ( sv_maxPing->value && ping > sv_maxPing->value ) {
NET_OutOfBandPrint( NS_SERVER, from, va("print\n%s\n", SE_GetString("MP_SVGAME", "SERVER_FOR_LOW_PING")));//Server is for low pings only\n" );
Com_DPrintf (SE_GetString("MP_SVGAME", "CLIENT_REJECTED_HIGH_PING"), i);//"Client %i rejected on a too high ping\n", i);
return;
}
}
} else {
// force the "ip" info key to "localhost"
Info_SetValueForKey( userinfo, "ip", "localhost" );
}
newcl = &temp;
Com_Memset (newcl, 0, sizeof(client_t));
// if there is already a slot for this ip, reuse it
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( cl->state == CS_FREE ) {
continue;
}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) ) {
Com_Printf ("%s:reconnect\n", NET_AdrToString (from));
newcl = cl;
#ifdef _XBOX
reconnect = true;
#endif
// VVFIXME - both SOF2 and Wolf remove this call, claiming it blows away the user's info
// disconnect the client from the game first so any flags the
// player might have are dropped
VM_Call( gvm, GAME_CLIENT_DISCONNECT, newcl - svs.clients );
//
goto gotnewcl;
}
}
// find a client slot
// if "sv_privateClients" is set > 0, then that number
// of client slots will be reserved for connections that
// have "password" set to the value of "sv_privatePassword"
// Info requests will report the maxclients as if the private
// slots didn't exist, to prevent people from trying to connect
// to a full server.
// This is to allow us to reserve a couple slots here on our
// servers so we can play without having to kick people.
// check for privateClient password
password = Info_ValueForKey( userinfo, "password" );
if ( !strcmp( password, sv_privatePassword->string ) ) {
startIndex = 0;
} else {
// skip past the reserved slots
startIndex = sv_privateClients->integer;
}
newcl = NULL;
for ( i = startIndex; i < sv_maxclients->integer ; i++ ) {
cl = &svs.clients[i];
if (cl->state == CS_FREE) {
newcl = cl;
break;
}
}
if ( !newcl ) {
if ( NET_IsLocalAddress( from ) ) {
count = 0;
for ( i = startIndex; i < sv_maxclients->integer ; i++ ) {
cl = &svs.clients[i];
if (cl->netchan.remoteAddress.type == NA_BOT) {
count++;
}
}
// if they're all bots
if (count >= sv_maxclients->integer - startIndex) {
SV_DropClient(&svs.clients[sv_maxclients->integer - 1], "only bots on server");
newcl = &svs.clients[sv_maxclients->integer - 1];
}
else {
Com_Error( ERR_FATAL, "server is full on local connect\n" );
return;
}
}
else {
const char *SV_GetStringEdString(char *refSection, char *refName);
NET_OutOfBandPrint( NS_SERVER, from, va("print\n%s\n", SV_GetStringEdString("MP_SVGAME","SERVER_IS_FULL")));
Com_DPrintf ("Rejected a connection.\n");
return;
}
}
// we got a newcl, so reset the reliableSequence and reliableAcknowledge
cl->reliableAcknowledge = 0;
cl->reliableSequence = 0;
gotnewcl:
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
*newcl = temp;
clientNum = newcl - svs.clients;
ent = SV_GentityNum( clientNum );
newcl->gentity = ent;
// save the challenge
newcl->challenge = challenge;
// save the address
Netchan_Setup (NS_SERVER, &newcl->netchan , from, qport);
// save the userinfo
Q_strncpyz( newcl->userinfo, userinfo, sizeof(newcl->userinfo) );
// get the game a chance to reject this connection or modify the userinfo
denied = (char *)VM_Call( gvm, GAME_CLIENT_CONNECT, clientNum, qtrue, qfalse ); // firstTime = qtrue
if ( denied ) {
// we can't just use VM_ArgPtr, because that is only valid inside a VM_Call
denied = (char *)VM_ExplicitArgPtr( gvm, (int)denied );
NET_OutOfBandPrint( NS_SERVER, from, "print\n%s\n", denied );
Com_DPrintf ("Game rejected a connection: %s.\n", denied);
return;
}
SV_UserinfoChanged( newcl );
// send the connect packet to the client
NET_OutOfBandPrint( NS_SERVER, from, "connectResponse" );
Com_DPrintf( "Going from CS_FREE to CS_CONNECTED for %s\n", newcl->name );
newcl->state = CS_CONNECTED;
newcl->nextSnapshotTime = svs.time;
newcl->lastPacketTime = svs.time;
newcl->lastConnectTime = svs.time;
// when we receive the first packet from the client, we will
// notice that it is from a different serverid and that the
// gamestate message was not just sent, forcing a retransmit
newcl->gamestateMessageNum = -1;
newcl->lastUserInfoChange = 0; //reset the delay
newcl->lastUserInfoCount = 0; //reset the count
// if this was the first client on the server, or the last client
// the server can hold, send a heartbeat to the master.
count = 0;
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( svs.clients[i].state >= CS_CONNECTED ) {
count++;
}
}
if ( count == 1 || count == sv_maxclients->integer ) {
SV_Heartbeat_f();
}
}
void SV_DirectConnect( netadr_t from ) {
char userinfo[MAX_INFO_STRING];
int i;
client_t *cl, *newcl;
client_t temp;
sharedEntity_t *ent;
int clientNum;
int qport;
int challenge;
char *password;
int startIndex;
intptr_t denied;
int count;
Com_DPrintf ("SVC_DirectConnect ()\n");
Q_strncpyz( userinfo, Cmd_Argv(1), sizeof(userinfo) );
if ( Q_stricmp( Info_ValueForKey( userinfo, "protocol" ), PROTOCOL_VERSION ) ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer uses protocol version "PROTOCOL_VERSION".\n" );
Com_DPrintf (" rejected connect from version %s\n", Info_ValueForKey( userinfo, "protocol" ));
return;
}
challenge = atoi( Info_ValueForKey( userinfo, "challenge" ) );
qport = atoi( Info_ValueForKey( userinfo, "qport" ) );
// quick reject
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( cl->state == CS_FREE ) {
continue;
}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) ) {
if (( svs.time - cl->lastConnectTime)
< (sv_reconnectlimit->integer * 1000)) {
Com_DPrintf ("%s:reconnect rejected : too soon\n", NET_AdrToString (from));
return;
}
break;
}
}
// see if the challenge is valid (LAN clients don't need to challenge)
if ( !NET_IsLocalAddress (from) ) {
int ping;
for (i=0 ; i<MAX_CHALLENGES ; i++) {
if (NET_CompareAdr(from, svs.challenges[i].adr)) {
if ( challenge == svs.challenges[i].challenge ) {
break; // good
}
}
}
if (i == MAX_CHALLENGES) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nNo or bad challenge for address.\n" );
return;
}
// force the IP key/value pair so the game can filter based on ip
Info_SetValueForKey( userinfo, "ip", NET_AdrToString( from ) );
ping = svs.time - svs.challenges[i].pingTime;
Com_Printf( "Client %i connecting with %i challenge ping\n", i, ping );
svs.challenges[i].connected = qtrue;
// never reject a LAN client based on ping
if ( !Sys_IsLANAddress( from ) ) {
if ( sv_minPing->value && ping < sv_minPing->value ) {
// don't let them keep trying until they get a big delay
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer is for high pings only\n" );
Com_DPrintf ("Client %i rejected on a too low ping\n", i);
// reset the address otherwise their ping will keep increasing
// with each connect message and they'd eventually be able to connect
svs.challenges[i].adr.port = 0;
return;
}
if ( sv_maxPing->value && ping > sv_maxPing->value ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer is for low pings only\n" );
Com_DPrintf ("Client %i rejected on a too high ping\n", i);
return;
}
}
} else {
// force the "ip" info key to "localhost"
Info_SetValueForKey( userinfo, "ip", "localhost" );
}
newcl = &temp;
Com_Memset (newcl, 0, sizeof(client_t));
// if there is already a slot for this ip, reuse it
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( cl->state == CS_FREE ) {
continue;
}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) ) {
Com_Printf ("%s:reconnect\n", NET_AdrToString (from));
newcl = cl;
// this doesn't work because it nukes the players userinfo
// // disconnect the client from the game first so any flags the
// // player might have are dropped
// VM_Call( gvm, GAME_CLIENT_DISCONNECT, newcl - svs.clients );
//
goto gotnewcl;
}
}
// find a client slot
// if "sv_privateClients" is set > 0, then that number
// of client slots will be reserved for connections that
// have "password" set to the value of "sv_privatePassword"
// Info requests will report the maxclients as if the private
// slots didn't exist, to prevent people from trying to connect
// to a full server.
// This is to allow us to reserve a couple slots here on our
// servers so we can play without having to kick people.
// check for privateClient password
password = Info_ValueForKey( userinfo, "password" );
if ( !strcmp( password, sv_privatePassword->string ) ) {
startIndex = 0;
} else {
// skip past the reserved slots
startIndex = sv_privateClients->integer;
}
newcl = NULL;
for ( i = startIndex; i < MAX_PLAYERS ; i++ ) {
cl = &svs.clients[i];
if (cl->state == CS_FREE) {
newcl = cl;
break;
}
}
if ( !newcl ) {
if ( NET_IsLocalAddress( from ) ) {
count = 0;
for ( i = startIndex; i < sv_maxclients->integer ; i++ ) {
cl = &svs.clients[i];
if (cl->netchan.remoteAddress.type == NA_BOT) {
count++;
}
}
// if they're all bots
if (count >= sv_maxclients->integer - startIndex) {
SV_DropClient(&svs.clients[sv_maxclients->integer - 1], "only bots on server");
newcl = &svs.clients[sv_maxclients->integer - 1];
}
else {
Com_Error( ERR_FATAL, "server is full on local connect\n" );
return;
}
}
else {
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer is full.\n" );
Com_DPrintf ("Rejected a connection.\n");
return;
}
}
// we got a newcl, so reset the reliableSequence and reliableAcknowledge
cl->reliableAcknowledge = 0;
cl->reliableSequence = 0;
gotnewcl:
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
*newcl = temp;
clientNum = newcl - svs.clients;
ent = SV_GentityNum( clientNum );
newcl->gentity = ent;
// save the challenge
newcl->challenge = challenge;
// save the address
Netchan_Setup (NS_SERVER, &newcl->netchan , from, qport);
// init the netchan queue
newcl->netchan_end_queue = &newcl->netchan_start_queue;
// save the userinfo
Q_strncpyz( newcl->userinfo, userinfo, sizeof(newcl->userinfo) );
// get the game a chance to reject this connection or modify the userinfo
denied = VM_Call( gvm, GAME_CLIENT_CONNECT, clientNum, qtrue, qfalse ); // firstTime = qtrue
if ( denied ) {
// we can't just use VM_ArgPtr, because that is only valid inside a VM_Call
char *str = VM_ExplicitArgPtr( gvm, denied );
NET_OutOfBandPrint( NS_SERVER, from, "error\n%s\n", str );
Com_DPrintf ("Game rejected a connection: %s.\n", str);
return;
}
SV_UserinfoChanged( newcl );
// send the connect packet to the client
NET_OutOfBandPrint( NS_SERVER, from, "connectResponse" );
Com_DPrintf( "Going from CS_FREE to CS_CONNECTED for %s\n", newcl->name );
newcl->state = CS_CONNECTED;
newcl->nextSnapshotTime = svs.time;
newcl->lastPacketTime = svs.time;
newcl->lastConnectTime = svs.time;
// when we receive the first packet from the client, we will
// notice that it is from a different serverid and that the
// gamestate message was not just sent, forcing a retransmit
newcl->gamestateMessageNum = -1;
// if this was the first client on the server, or the last client
// the server can hold, send a heartbeat to the master.
count = 0;
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( svs.clients[i].state >= CS_CONNECTED ) {
count++;
}
}
if ( count == 1 || count == sv_maxclients->integer ) {
SV_Heartbeat_f();
}
}
/*
* TV_Downstream_ClientConnect
*/
static bool TV_Downstream_ClientConnect( const socket_t *socket, const netadr_t *address, client_t *client,
char *userinfo, int game_port, int challenge, bool tv_client )
{
assert( socket );
assert( address );
assert( client );
assert( userinfo );
// it may actually happen that we reuse a client slot (same IP, same port),
// which is "attached" to an active relay, so we need to notify the relay that client
// isn't active anymore, otherwise it'll get confused after we set the client's state
// to CS_CONNECTING down below
if( client->relay )
TV_Relay_ClientDisconnect( client->relay, client );
if( !TV_Lobby_CanConnect( client, userinfo ) )
return false;
TV_Lobby_ClientConnect( client );
// the upstream is accepted, set up the client slot
client->challenge = challenge; // save challenge for checksumming
client->tv = (tv_client ? true : false);
switch( socket->type )
{
#ifdef TCP_ALLOW_TVCONNECT
case SOCKET_TCP:
client->reliable = true;
client->individual_socket = true;
client->socket = *socket;
break;
#endif
case SOCKET_UDP:
case SOCKET_LOOPBACK:
client->reliable = false;
client->individual_socket = false;
client->socket.open = false;
break;
default:
assert( false );
}
TV_Downstream_ClientResetCommandBuffers( client, true );
// reset timeouts
client->lastPacketReceivedTime = tvs.realtime;
client->lastconnect = tvs.realtime;
// init the upstream
client->state = CS_CONNECTING;
if( client->individual_socket )
Netchan_Setup( &client->netchan, &client->socket, address, game_port );
else
Netchan_Setup( &client->netchan, socket, address, game_port );
// parse some info from the info strings
Q_strncpyz( client->userinfo, userinfo, sizeof( client->userinfo ) );
TV_Downstream_UserinfoChanged( client );
Com_Printf( "%s" S_COLOR_WHITE " connected\n", client->name );
return true;
}
/*
==================
SV_DirectConnect
A "connect" OOB command has been received
==================
*/
void SV_DirectConnect( netadr_t from ) {
char userinfo[MAX_INFO_STRING];
int i;
client_t *cl, *newcl;
MAC_STATIC client_t temp;
gentity_t *ent;
int clientNum;
int version;
int qport;
int challenge;
char *denied;
Com_DPrintf ("SVC_DirectConnect ()\n");
Q_strncpyz( userinfo, Cmd_Argv(1), sizeof(userinfo) );
version = atoi( Info_ValueForKey( userinfo, "protocol" ) );
if ( version != PROTOCOL_VERSION ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer uses protocol version %i.\n", PROTOCOL_VERSION );
Com_DPrintf (" rejected connect from version %i\n", version);
return;
}
qport = atoi( Info_ValueForKey( userinfo, "qport" ) );
challenge = atoi( Info_ValueForKey( userinfo, "challenge" ) );
// see if the challenge is valid (local clients don't need to challenge)
if ( !NET_IsLocalAddress (from) ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nNo challenge for address.\n" );
return;
} else {
// force the "ip" info key to "localhost"
Info_SetValueForKey( userinfo, "ip", "localhost" );
}
newcl = &temp;
memset (newcl, 0, sizeof(client_t));
// if there is already a slot for this ip, reuse it
for (i=0,cl=svs.clients ; i < 1 ; i++,cl++)
{
if ( cl->state == CS_FREE ) {
continue;
}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) )
{
if (( sv.time - cl->lastConnectTime)
< (sv_reconnectlimit->integer * 1000))
{
Com_DPrintf ("%s:reconnect rejected : too soon\n", NET_AdrToString (from));
return;
}
Com_Printf ("%s:reconnect\n", NET_AdrToString (from));
newcl = cl;
goto gotnewcl;
}
}
newcl = NULL;
for ( i = 0; i < 1 ; i++ ) {
cl = &svs.clients[i];
if (cl->state == CS_FREE) {
newcl = cl;
break;
}
}
if ( !newcl ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer is full.\n" );
Com_DPrintf ("Rejected a connection.\n");
return;
}
gotnewcl:
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
*newcl = temp;
clientNum = newcl - svs.clients;
ent = SV_GentityNum( clientNum );
newcl->gentity = ent;
// save the address
Netchan_Setup (NS_SERVER, &newcl->netchan , from, qport);
// save the userinfo
Q_strncpyz( newcl->userinfo, userinfo, sizeof(newcl->userinfo) );
// get the game a chance to reject this connection or modify the userinfo
denied = ge->ClientConnect( clientNum, qtrue, eSavedGameJustLoaded ); // firstTime = qtrue
if ( denied ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\n%s\n", denied );
Com_DPrintf ("Game rejected a connection: %s.\n", denied);
return;
}
SV_UserinfoChanged( newcl );
// send the connect packet to the client
NET_OutOfBandPrint( NS_SERVER, from, "connectResponse" );
newcl->state = CS_CONNECTED;
newcl->nextSnapshotTime = sv.time;
newcl->lastPacketTime = sv.time;
newcl->lastConnectTime = sv.time;
// when we receive the first packet from the client, we will
// notice that it is from a different serverid and that the
// gamestate message was not just sent, forcing a retransmit
newcl->gamestateMessageNum = -1;
}
/*
==================
SVC_DirectConnect
A connection request that did not come from the master
==================
*/
static void SVC_DirectConnect (void)
{
char userinfo[1024];
static int userid;
netadr_t adr;
int i;
client_t *cl, *newcl;
client_t temp;
edict_t *ent;
int edictnum;
const char *s;
int clients, spectators;
qboolean spectator;
q_strlcpy (userinfo, Cmd_Argv(2), sizeof(userinfo));
// check for password or spectator_password
s = Info_ValueForKey (userinfo, "spectator");
if (s[0] && strcmp(s, "0"))
{
if (spectator_password.string[0] &&
q_strcasecmp(spectator_password.string, "none") &&
strcmp(spectator_password.string, s) )
{ // failed
Con_Printf ("%s:spectator password failed\n", NET_AdrToString (net_from));
Netchan_OutOfBandPrint (net_from, "%c\nrequires a spectator password\n\n", A2C_PRINT);
return;
}
Info_SetValueForStarKey (userinfo, "*spectator", "1", MAX_INFO_STRING);
spectator = true;
Info_RemoveKey (userinfo, "spectator"); // remove passwd
}
else
{
s = Info_ValueForKey (userinfo, "password");
if (password.string[0] &&
q_strcasecmp(password.string, "none") &&
strcmp(password.string, s) )
{
Con_Printf ("%s:password failed\n", NET_AdrToString (net_from));
Netchan_OutOfBandPrint (net_from, "%c\nserver requires a password\n\n", A2C_PRINT);
return;
}
spectator = false;
Info_RemoveKey (userinfo, "password"); // remove passwd
}
adr = net_from;
userid++; // so every client gets a unique id
newcl = &temp;
memset (newcl, 0, sizeof(client_t));
newcl->userid = userid;
newcl->portals = atoi(Cmd_Argv(1));
// works properly
if (!sv_highchars.integer)
{
byte *p, *q;
for (p = (byte *)newcl->userinfo, q = (byte *)userinfo;
*q && p < (byte *)newcl->userinfo + sizeof(newcl->userinfo)-1; q++)
{
if (*q > 31 && *q <= 127)
*p++ = *q;
}
}
else
{
q_strlcpy (newcl->userinfo, userinfo, sizeof(newcl->userinfo));
}
// if there is already a slot for this ip, drop it
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
{
if (cl->state == cs_free)
continue;
if (NET_CompareAdr (adr, cl->netchan.remote_address))
{
Con_Printf ("%s:reconnect\n", NET_AdrToString (adr));
SV_DropClient (cl);
break;
}
}
// count up the clients and spectators
clients = 0;
spectators = 0;
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
{
if (cl->state == cs_free)
continue;
if (cl->spectator)
spectators++;
else
clients++;
}
// if at server limits, refuse connection
if (maxclients.integer > MAX_CLIENTS)
Cvar_SetValue ("maxclients", MAX_CLIENTS);
if (maxspectators.integer > MAX_CLIENTS)
Cvar_SetValue ("maxspectators", MAX_CLIENTS);
if (maxspectators.integer + maxclients.integer > MAX_CLIENTS)
Cvar_SetValue ("maxspectators", MAX_CLIENTS - maxspectators.integer + maxclients.integer);
if ( (spectator && spectators >= maxspectators.integer)
|| (!spectator && clients >= maxclients.integer) )
{
Con_Printf ("%s:full connect\n", NET_AdrToString (adr));
Netchan_OutOfBandPrint (adr, "%c\nserver is full\n\n", A2C_PRINT);
return;
}
// find a client slot
newcl = NULL;
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
{
if (cl->state == cs_free)
{
newcl = cl;
break;
}
}
if (!newcl)
{
Con_Printf ("WARNING: miscounted available clients\n");
return;
}
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
*newcl = temp;
Netchan_OutOfBandPrint (adr, "%c", S2C_CONNECTION );
edictnum = (newcl-svs.clients)+1;
Netchan_Setup (&newcl->netchan, adr);
newcl->state = cs_connected;
SZ_Init (&newcl->datagram, newcl->datagram_buf, sizeof(newcl->datagram_buf));
newcl->datagram.allowoverflow = true;
// spectator mode can ONLY be set at join time
newcl->spectator = spectator;
ent = EDICT_NUM(edictnum);
newcl->edict = ent;
ED_ClearEdict (ent);
// parse some info from the info strings
SV_ExtractFromUserinfo (newcl);
// JACK: Init the floodprot stuff.
for (i = 0; i < 10; i++)
newcl->whensaid[i] = 0.0;
newcl->whensaidhead = 0;
newcl->lockedtill = 0;
// call the progs to get default spawn parms for the new client
PR_ExecuteProgram (pr_global_struct->SetNewParms);
for (i = 0; i < NUM_SPAWN_PARMS; i++)
newcl->spawn_parms[i] = (&pr_global_struct->parm1)[i];
if (newcl->spectator)
Con_Printf ("Spectator %s connected\n", newcl->name);
else
Con_DPrintf ("Client %s connected\n", newcl->name);
}
/*
==================
SV_DirectConnect
A "connect" OOB command has been received
==================
*/
void SV_DirectConnect( netadr_t from ) {
char userinfo[MAX_INFO_STRING];
int i;
client_t *cl, *newcl;
client_t temp;
sharedEntity_t *ent;
int clientNum;
int version;
int qport;
int challenge;
char *password;
int startIndex;
char *denied;
int count;
char *ip;
Com_DPrintf ("SVC_DirectConnect ()\n");
// Check whether this client is banned.
if ( SV_IsBanned( &from, qfalse ) )
{
NET_OutOfBandPrint( NS_SERVER, from, "print\nYou are banned from this server.\n" );
Com_DPrintf( " rejected connect from %s (banned)\n", NET_AdrToString(from) );
return;
}
Q_strncpyz( userinfo, Cmd_Argv(1), sizeof(userinfo) );
version = atoi( Info_ValueForKey( userinfo, "protocol" ) );
if ( version != PROTOCOL_VERSION ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer uses protocol version %i (yours is %i).\n", PROTOCOL_VERSION, version );
Com_DPrintf (" rejected connect from version %i\n", version);
return;
}
challenge = atoi( Info_ValueForKey( userinfo, "challenge" ) );
qport = atoi( Info_ValueForKey( userinfo, "qport" ) );
// quick reject
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
/* This was preventing sv_reconnectlimit from working. It seems like commenting this
out has solved the problem. HOwever, if there is a future problem then it could
be this.
if ( cl->state == CS_FREE ) {
continue;
}
*/
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) ) {
if (( svs.time - cl->lastConnectTime)
< (sv_reconnectlimit->integer * 1000)) {
NET_OutOfBandPrint( NS_SERVER, from, "print\nReconnect rejected : too soon\n" );
Com_DPrintf ("%s:reconnect rejected : too soon\n", NET_AdrToString (from));
return;
}
break;
}
}
// don't let "ip" overflow userinfo string
if ( NET_IsLocalAddress (from) )
ip = "localhost";
else
ip = (char *)NET_AdrToString( from );
if( ( strlen( ip ) + strlen( userinfo ) + 4 ) >= MAX_INFO_STRING ) {
NET_OutOfBandPrint( NS_SERVER, from,
"print\nUserinfo string length exceeded. "
"Try removing setu cvars from your config.\n" );
return;
}
Info_SetValueForKey( userinfo, "ip", ip );
// see if the challenge is valid (localhost clients don't need to challenge)
if (!NET_IsLocalAddress(from))
{
// Verify the received challenge against the expected challenge
if (!SV_VerifyChallenge(challenge, from))
{
NET_OutOfBandPrint( NS_SERVER, from, "print\nIncorrect challenge for your address.\n" );
return;
}
}
newcl = &temp;
Com_Memset (newcl, 0, sizeof(client_t));
// if there is already a slot for this ip, reuse it
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( cl->state == CS_FREE ) {
continue;
}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) ) {
Com_Printf ("%s:reconnect\n", NET_AdrToString (from));
newcl = cl;
// VVFIXME - both SOF2 and Wolf remove this call, claiming it blows away the user's info
// disconnect the client from the game first so any flags the
// player might have are dropped
GVM_ClientDisconnect( newcl - svs.clients );
//
goto gotnewcl;
}
}
// find a client slot
// if "sv_privateClients" is set > 0, then that number
// of client slots will be reserved for connections that
// have "password" set to the value of "sv_privatePassword"
// Info requests will report the maxclients as if the private
// slots didn't exist, to prevent people from trying to connect
// to a full server.
// This is to allow us to reserve a couple slots here on our
// servers so we can play without having to kick people.
// check for privateClient password
password = Info_ValueForKey( userinfo, "password" );
if ( !strcmp( password, sv_privatePassword->string ) ) {
startIndex = 0;
} else {
// skip past the reserved slots
startIndex = sv_privateClients->integer;
}
newcl = NULL;
for ( i = startIndex; i < sv_maxclients->integer ; i++ ) {
cl = &svs.clients[i];
if (cl->state == CS_FREE) {
newcl = cl;
break;
}
}
if ( !newcl ) {
if ( NET_IsLocalAddress( from ) ) {
count = 0;
for ( i = startIndex; i < sv_maxclients->integer ; i++ ) {
cl = &svs.clients[i];
if (cl->netchan.remoteAddress.type == NA_BOT) {
count++;
}
}
// if they're all bots
if (count >= sv_maxclients->integer - startIndex) {
SV_DropClient(&svs.clients[sv_maxclients->integer - 1], "only bots on server");
newcl = &svs.clients[sv_maxclients->integer - 1];
}
else {
Com_Error( ERR_FATAL, "server is full on local connect\n" );
return;
}
}
else {
const char *SV_GetStringEdString(char *refSection, char *refName);
NET_OutOfBandPrint( NS_SERVER, from, va("print\n%s\n", SV_GetStringEdString("MP_SVGAME","SERVER_IS_FULL")));
Com_DPrintf ("Rejected a connection.\n");
return;
}
}
// we got a newcl, so reset the reliableSequence and reliableAcknowledge
cl->reliableAcknowledge = 0;
cl->reliableSequence = 0;
gotnewcl:
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
*newcl = temp;
clientNum = newcl - svs.clients;
ent = SV_GentityNum( clientNum );
newcl->gentity = ent;
// save the challenge
newcl->challenge = challenge;
// save the address
Netchan_Setup (NS_SERVER, &newcl->netchan , from, qport);
// save the userinfo
Q_strncpyz( newcl->userinfo, userinfo, sizeof(newcl->userinfo) );
// get the game a chance to reject this connection or modify the userinfo
denied = GVM_ClientConnect( clientNum, qtrue, qfalse ); // firstTime = qtrue
if ( denied ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\n%s\n", denied );
Com_DPrintf ("Game rejected a connection: %s.\n", denied);
return;
}
SV_UserinfoChanged( newcl );
// send the connect packet to the client
NET_OutOfBandPrint( NS_SERVER, from, "connectResponse" );
Com_DPrintf( "Going from CS_FREE to CS_CONNECTED for %s\n", newcl->name );
newcl->state = CS_CONNECTED;
newcl->nextSnapshotTime = svs.time;
newcl->lastPacketTime = svs.time;
newcl->lastConnectTime = svs.time;
// when we receive the first packet from the client, we will
// notice that it is from a different serverid and that the
// gamestate message was not just sent, forcing a retransmit
newcl->gamestateMessageNum = -1;
newcl->lastUserInfoChange = 0; //reset the delay
newcl->lastUserInfoCount = 0; //reset the count
// if this was the first client on the server, or the last client
// the server can hold, send a heartbeat to the master.
count = 0;
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( svs.clients[i].state >= CS_CONNECTED ) {
count++;
}
}
if ( count == 1 || count == sv_maxclients->integer ) {
SV_Heartbeat_f();
}
}
/*
====================
CL_PlayDemo_f
playdemo <demoname>
====================
*/
void CL_PlayDemo_f( void )
{
string filename;
string demoname;
int i;
if( Cmd_Argc() != 2 )
{
Msg( "Usage: playdemo <demoname>\n" );
return;
}
if( cls.demoplayback )
{
CL_StopPlayback();
}
if( cls.demorecording )
{
Msg( "Can't playback during demo record.\n");
return;
}
Q_strncpy( demoname, Cmd_Argv( 1 ), sizeof( demoname ) - 1 );
Q_snprintf( filename, sizeof( filename ), "demos/%s.dem", demoname );
if( !FS_FileExists( filename, true ))
{
MsgDev( D_ERROR, "couldn't open %s\n", filename );
cls.demonum = -1; // stop demo loop
return;
}
cls.demofile = FS_Open( filename, "rb", true );
Q_strncpy( cls.demoname, demoname, sizeof( cls.demoname ));
Q_strncpy( menu.globals->demoname, demoname, sizeof( menu.globals->demoname ));
// read in the m_DemoHeader
FS_Read( cls.demofile, &demo.header, sizeof( demoheader_t ));
if( demo.header.id != IDEMOHEADER )
{
MsgDev( D_ERROR, "%s is not a demo file\n", filename );
FS_Close( cls.demofile );
cls.demofile = NULL;
cls.demonum = -1; // stop demo loop
return;
}
if( demo.header.net_protocol != PROTOCOL_VERSION || demo.header.dem_protocol != DEMO_PROTOCOL )
{
MsgDev( D_ERROR, "demo protocol outdated\n"
"Demo file protocols Network(%i), Demo(%i)\n"
"Server protocol is at Network(%i), Demo(%i)\n",
demo.header.net_protocol,
demo.header.dem_protocol,
PROTOCOL_VERSION,
DEMO_PROTOCOL
);
FS_Close( cls.demofile );
cls.demofile = NULL;
cls.demonum = -1; // stop demo loop
return;
}
// now read in the directory structure.
FS_Seek( cls.demofile, demo.header.directory_offset, SEEK_SET );
FS_Read( cls.demofile, &demo.directory.numentries, sizeof( int ));
if( demo.directory.numentries < 1 || demo.directory.numentries > 1024 )
{
MsgDev( D_ERROR, "demo had bogus # of directory entries: %i\n", demo.directory.numentries );
FS_Close( cls.demofile );
cls.demofile = NULL;
cls.demonum = -1; // stop demo loop
cls.changedemo = false;
return;
}
if( cls.changedemo )
{
S_StopAllSounds();
SCR_BeginLoadingPlaque( false );
CL_ClearState ();
CL_InitEdicts (); // re-arrange edicts
}
else
{
// NOTE: at this point demo is still valid
CL_Disconnect();
Host_ShutdownServer();
Con_Close();
UI_SetActiveMenu( false );
}
// allocate demo entries
demo.directory.entries = Mem_Alloc( cls.mempool, sizeof( demoentry_t ) * demo.directory.numentries );
for( i = 0; i < demo.directory.numentries; i++ )
{
FS_Read( cls.demofile, &demo.directory.entries[i], sizeof( demoentry_t ));
}
demo.entryIndex = 0;
demo.entry = &demo.directory.entries[demo.entryIndex];
FS_Seek( cls.demofile, demo.entry->offset, SEEK_SET );
cls.demoplayback = true;
cls.state = ca_connected;
cl.background = (cls.demonum != -1) ? true : false;
demo.starttime = CL_GetDemoPlaybackClock(); // for determining whether to read another message
Netchan_Setup( NS_CLIENT, &cls.netchan, net_from, net_qport->integer );
demo.framecount = 0;
cls.lastoutgoingcommand = -1;
cls.nextcmdtime = host.realtime;
// g-cont. is this need?
Q_strncpy( cls.servername, demoname, sizeof( cls.servername ));
// begin a playback demo
}
/*
====================
CL_PlayDemo_f
play [demoname]
====================
*/
void CL_PlayDemo_f (void)
{
char name[256];
qbool try_dem;
if (Cmd_Argc() != 2)
{
Com_Printf ("playdemo <demoname> : plays a demo\n");
return;
}
//
// disconnect from server
//
Host_EndGame ();
//
// open the demo file
//
strlcpy (name, Cmd_Argv(1), sizeof(name)-4);
#ifdef _WIN32
if (strlen(name) > 4 && !Q_stricmp(name + strlen(name) - 4, ".qwz")) {
PlayQWZDemo ();
return;
}
#endif
if (COM_FileExtension(name)[0] == 0) {
COM_DefaultExtension (name, ".qwd");
try_dem = true; // if we can't open the .qwd, try .dem also
}
else
try_dem = false;
try_again:
if (!strncmp(name, "../", 3) || !strncmp(name, "..\\", 3))
cls.demofile = fopen (va("%s/%s", com_basedir, name+3), "rb");
else
FS_FOpenFile (name, &cls.demofile);
if (!cls.demofile && try_dem) {
COM_StripExtension (name, name);
strcat (name, ".dem");
try_dem = false;
goto try_again;
}
if (!cls.demofile) {
Com_Printf ("ERROR: couldn't open \"%s\"\n", Cmd_Argv(1));
cls.playdemos = 0;
return;
}
Com_Printf ("Playing demo from %s.\n", COM_SkipPath(name));
cls.nqdemoplayback = !Q_stricmp(COM_FileExtension(name), "dem");
if (cls.nqdemoplayback) {
NQD_StartPlayback ();
}
#ifdef MVDPLAY
cls.mvdplayback = !Q_stricmp(COM_FileExtension(name), "mvd");
#endif
cls.demoplayback = true;
cls.state = ca_demostart;
Netchan_Setup (NS_CLIENT, &cls.netchan, net_null, 0);
cls.demotime = 0;
#ifdef MVDPLAY
cls.mvd_newtime = cls.mvd_oldtime = 0;
cls.mvd_findtarget = true;
cls.mvd_lasttype = 0;
cls.mvd_lastto = 0;
MVD_ClearPredict();
#endif
}
void PlayQWZDemo (void)
{
extern cvar_t qizmo_dir;
STARTUPINFO si;
PROCESS_INFORMATION pi;
char *name;
char qwz_name[256];
char cmdline[512];
char *p;
if (hQizmoProcess) {
Com_Printf ("Cannot unpack -- Qizmo still running!\n");
return;
}
name = Cmd_Argv(1);
if (!strncmp(name, "../", 3) || !strncmp(name, "..\\", 3))
strlcpy (qwz_name, va("%s/%s", com_basedir, name+3), sizeof(qwz_name));
else
if (name[0] == '/' || name[0] == '\\')
strlcpy (qwz_name, va("%s/%s", cls.gamedir, name+1), sizeof(qwz_name));
else
strlcpy (qwz_name, va("%s/%s", cls.gamedir, name), sizeof(qwz_name));
// Qizmo needs an absolute file name
_fullpath (qwz_name, qwz_name, sizeof(qwz_name)-1);
qwz_name[sizeof(qwz_name)-1] = 0;
// check if the file exists
cls.demofile = fopen (qwz_name, "rb");
if (!cls.demofile)
{
Com_Printf ("Couldn't open %s\n", name);
return;
}
fclose (cls.demofile);
strlcpy (tempqwd_name, qwz_name, sizeof(tempqwd_name)-4);
#if 0
// the right way
strcpy (tempqwd_name + strlen(tempqwd_name) - 4, ".qwd");
#else
// the way Qizmo does it, sigh
p = strstr (tempqwd_name, ".qwz");
if (!p)
p = strstr (tempqwd_name, ".QWZ");
if (!p)
p = tempqwd_name + strlen(tempqwd_name);
strcpy (p, ".qwd");
#endif
cls.demofile = fopen (tempqwd_name, "rb");
if (cls.demofile) {
// .qwd already exists, so just play it
cls.demoplayback = true;
cls.state = ca_demostart;
Netchan_Setup (NS_CLIENT, &cls.netchan, net_null, 0);
cls.demotime = 0;
return;
}
Com_Printf ("Unpacking %s...\n", COM_SkipPath(name));
// start Qizmo to unpack the demo
memset (&si, 0, sizeof(si));
si.cb = sizeof(si);
si.wShowWindow = SW_HIDE;
si.dwFlags = STARTF_USESHOWWINDOW;
strlcpy (cmdline, va("%s/%s/qizmo.exe -q -u -D \"%s\"", com_basedir,
qizmo_dir.string, qwz_name), sizeof(cmdline));
if (!CreateProcess (NULL, cmdline, NULL, NULL,
FALSE, 0/* | HIGH_PRIORITY_CLASS*/,
NULL, va("%s/%s", com_basedir, qizmo_dir.string), &si, &pi))
{
Com_Printf ("Couldn't execute %s/%s/qizmo.exe\n",
com_basedir, qizmo_dir.string);
return;
}
hQizmoProcess = pi.hProcess;
qwz_unpacking = true;
qwz_playback = true;
// demo playback doesn't actually start yet, we just set
// cls.demoplayback so that CL_StopPlayback() will be called
// if CL_Disconnect() is issued
cls.demoplayback = true;
cls.demofile = NULL;
cls.state = ca_demostart;
Netchan_Setup (NS_CLIENT, &cls.netchan, net_null, 0);
cls.demotime = 0;
}
void SV_DirectConnect( netadr_t from ) {
char userinfo[MAX_INFO_STRING];
int i;
client_t *cl, *newcl;
client_t temp;
sharedEntity_t *ent;
int clientNum;
int version;
int qport;
int challenge;
char *password;
int startIndex;
intptr_t denied;
int count;
char *ip;
const char *stringEd;
#ifdef LEGACY_PROTOCOL
qboolean compat = qfalse;
#endif
Com_DPrintf ("SVC_DirectConnect ()\n");
// Check whether this client is banned.
if(SV_IsBanned(&from, qfalse))
{
NET_OutOfBandPrint(NS_SERVER, from, "print\nYou are banned from this server.\n");
return;
}
Q_strncpyz( userinfo, Cmd_Argv(1), sizeof(userinfo) );
version = atoi(Info_ValueForKey(userinfo, "protocol"));
#ifdef LEGACY_PROTOCOL
if(version > 0 && com_legacyprotocol->integer == version)
compat = qtrue;
else
#endif
{
if(version != com_protocol->integer)
{
NET_OutOfBandPrint(NS_SERVER, from, "print\nServer uses protocol version %i "
"(yours is %i).\n", com_protocol->integer, version);
Com_DPrintf(" rejected connect from version %i\n", version);
return;
}
}
challenge = atoi( Info_ValueForKey( userinfo, "challenge" ) );
qport = atoi( Info_ValueForKey( userinfo, "qport" ) );
// quick reject
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( cl->state == CS_FREE ) {
continue;
}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) ) {
if (( svs.time - cl->lastConnectTime)
< (sv_reconnectlimit->integer * 1000)) {
Com_DPrintf ("%s:reconnect rejected : too soon\n", NET_AdrToString (from));
return;
}
break;
}
}
// don't let "ip" overflow userinfo string
if ( NET_IsLocalAddress (from) )
ip = "localhost";
else
ip = (char *)NET_AdrToString( from );
if( ( strlen( ip ) + strlen( userinfo ) + 4 ) >= MAX_INFO_STRING ) {
NET_OutOfBandPrint( NS_SERVER, from,
"print\nUserinfo string length exceeded. "
"Try removing setu cvars from your config.\n" );
return;
}
Info_SetValueForKey( userinfo, "ip", ip );
// see if the challenge is valid (LAN clients don't need to challenge)
if (!NET_IsLocalAddress(from))
{
int ping;
challenge_t *challengeptr;
for (i=0; i<MAX_CHALLENGES; i++)
{
if (NET_CompareAdr(from, svs.challenges[i].adr))
{
if(challenge == svs.challenges[i].challenge)
break;
}
}
if (i == MAX_CHALLENGES)
{
NET_OutOfBandPrint( NS_SERVER, from, "print\nNo or bad challenge for your address.\n" );
return;
}
challengeptr = &svs.challenges[i];
if(challengeptr->wasrefused)
{
// Return silently, so that error messages written by the server keep being displayed.
return;
}
ping = svs.time - challengeptr->pingTime;
// never reject a LAN client based on ping
if ( !Sys_IsLANAddress( from ) ) {
if ( sv_minPing->value && ping < sv_minPing->value ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\n%s", SV_StringEdString("SERVER_FOR_HIGH_PING") );
stringEd = SV_GetString("CLIENT_REJECTED_LOW_PING");
Com_DPrintf (stringEd, i);
challengeptr->wasrefused = qtrue;
return;
}
if ( sv_maxPing->value && ping > sv_maxPing->value ) {
NET_OutOfBandPrint( NS_SERVER, from, "print\n%s", SV_StringEdString("SERVER_FOR_LOW_PING") );
stringEd = SV_GetString("CLIENT_REJECTED_LOW_PING");
Com_DPrintf (stringEd, i);
challengeptr->wasrefused = qtrue;
return;
}
}
stringEd = SV_GetString("CLIENT_CONN_WITH_PING");
Com_Printf(stringEd, i, ping);
challengeptr->connected = qtrue;
}
newcl = &temp;
Com_Memset (newcl, 0, sizeof(client_t));
// if there is already a slot for this ip, reuse it
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( cl->state == CS_FREE ) {
continue;
}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) ) {
Com_Printf ("%s:reconnect\n", NET_AdrToString (from));
newcl = cl;
// this doesn't work because it nukes the players userinfo
// // disconnect the client from the game first so any flags the
// // player might have are dropped
// VM_Call( gvm, GAME_CLIENT_DISCONNECT, newcl - svs.clients );
//
goto gotnewcl;
}
}
// find a client slot
// if "sv_privateClients" is set > 0, then that number
// of client slots will be reserved for connections that
// have "password" set to the value of "sv_privatePassword"
// Info requests will report the maxclients as if the private
// slots didn't exist, to prevent people from trying to connect
// to a full server.
// This is to allow us to reserve a couple slots here on our
// servers so we can play without having to kick people.
// check for privateClient password
password = Info_ValueForKey( userinfo, "password" );
if ( !strcmp( password, sv_privatePassword->string ) ) {
startIndex = 0;
} else {
// skip past the reserved slots
startIndex = sv_privateClients->integer;
}
newcl = NULL;
for ( i = startIndex; i < sv_maxclients->integer ; i++ ) {
cl = &svs.clients[i];
if (cl->state == CS_FREE) {
newcl = cl;
break;
}
}
if ( !newcl ) {
if ( NET_IsLocalAddress( from ) ) {
count = 0;
for ( i = startIndex; i < sv_maxclients->integer ; i++ ) {
cl = &svs.clients[i];
if (cl->netchan.remoteAddress.type == NA_BOT) {
count++;
}
}
// if they're all bots
if (count >= sv_maxclients->integer - startIndex) {
SV_DropClient(&svs.clients[sv_maxclients->integer - 1], "only bots on server");
newcl = &svs.clients[sv_maxclients->integer - 1];
}
else {
Com_Error( ERR_FATAL, "server is full on local connect" );
return;
}
}
else {
NET_OutOfBandPrint( NS_SERVER, from, "print\n%s\n", SV_StringEdString("SERVER_IS_FULL") );
Com_DPrintf ("Rejected a connection.\n");
return;
}
}
// we got a newcl, so reset the reliableSequence and reliableAcknowledge
cl->reliableAcknowledge = 0;
cl->reliableSequence = 0;
gotnewcl:
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
*newcl = temp;
clientNum = newcl - svs.clients;
ent = SV_GentityNum( clientNum );
newcl->gentity = ent;
// save the challenge
newcl->challenge = challenge;
// save the address
#ifdef LEGACY_PROTOCOL
newcl->compat = compat;
Netchan_Setup(NS_SERVER, &newcl->netchan, from, qport, challenge, compat);
#else
Netchan_Setup(NS_SERVER, &newcl->netchan, from, qport, challenge, qfalse);
#endif
// init the netchan queue
newcl->netchan_end_queue = &newcl->netchan_start_queue;
// save the userinfo
Q_strncpyz( newcl->userinfo, userinfo, sizeof(newcl->userinfo) );
// get the game a chance to reject this connection or modify the userinfo
denied = VM_Call( gvm, GAME_CLIENT_CONNECT, clientNum, qtrue, qfalse ); // firstTime = qtrue
if ( denied ) {
// we can't just use VM_ArgPtr, because that is only valid inside a VM_Call
char *str = VM_ExplicitArgPtr( gvm, denied );
NET_OutOfBandPrint( NS_SERVER, from, "print\n%s\n", str );
Com_DPrintf ("Game rejected a connection: %s.\n", str);
return;
}
SV_UserinfoChanged( newcl );
// send the connect packet to the client
NET_OutOfBandPrint(NS_SERVER, from, "connectResponse %d", challenge);
Com_DPrintf( "Going from CS_FREE to CS_CONNECTED for %s\n", newcl->name );
newcl->state = CS_CONNECTED;
newcl->lastSnapshotTime = 0;
newcl->lastPacketTime = svs.time;
newcl->lastConnectTime = svs.time;
// when we receive the first packet from the client, we will
// notice that it is from a different serverid and that the
// gamestate message was not just sent, forcing a retransmit
newcl->gamestateMessageNum = -1;
// if this was the first client on the server, or the last client
// the server can hold, send a heartbeat to the master.
count = 0;
for (i=0,cl=svs.clients ; i < sv_maxclients->integer ; i++,cl++) {
if ( svs.clients[i].state >= CS_CONNECTED ) {
count++;
}
}
if ( count == 1 || count == sv_maxclients->integer ) {
SV_Heartbeat_f();
}
}
/*
=================
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 );
}
/*
* SV_ClientConnect
* accept the new client
* this is the only place a client_t is ever initialized
*/
qboolean SV_ClientConnect( const socket_t *socket, const netadr_t *address, client_t *client, char *userinfo,
int game_port, int challenge, qboolean fakeClient, qboolean tvClient,
unsigned int ticket_id, int session_id )
{
int i;
edict_t *ent;
int edictnum;
edictnum = ( client - svs.clients ) + 1;
ent = EDICT_NUM( edictnum );
// give mm a chance to reject if the server is locked ready for mm
// must be called before ge->ClientConnect
// ch : rly ignore fakeClient and tvClient here?
session_id = SV_MM_ClientConnect( address, userinfo, ticket_id, session_id );
if( !session_id )
return qfalse;
// we need to set local sessions to userinfo ourselves
if( session_id < 0 )
Info_SetValueForKey( userinfo, "cl_mm_session", va("%d", session_id) );
// get the game a chance to reject this connection or modify the userinfo
if( !ge->ClientConnect( ent, userinfo, fakeClient, tvClient ) )
return qfalse;
// the connection is accepted, set up the client slot
memset( client, 0, sizeof( *client ) );
client->edict = ent;
client->challenge = challenge; // save challenge for checksumming
client->tvclient = tvClient;
client->mm_session = session_id;
client->mm_ticket = ticket_id;
if( socket )
{
switch( socket->type )
{
#ifdef TCP_ALLOW_CONNECT
case SOCKET_TCP:
client->reliable = qtrue;
client->individual_socket = qtrue;
client->socket = *socket;
break;
#endif
case SOCKET_UDP:
case SOCKET_LOOPBACK:
client->reliable = qfalse;
client->individual_socket = qfalse;
client->socket.open = qfalse;
break;
default:
assert( qfalse );
}
}
else
{
assert( fakeClient );
client->reliable = qfalse;
client->individual_socket = qfalse;
client->socket.open = qfalse;
}
SV_ClientResetCommandBuffers( client );
// reset timeouts
client->lastPacketReceivedTime = svs.realtime;
client->lastconnect = svs.realtime;
// init the connection
client->state = CS_CONNECTING;
if( fakeClient )
{
client->netchan.remoteAddress.type = NA_NOTRANSMIT; // fake-clients can't transmit
// TODO: if mm_debug_reportbots
Info_SetValueForKey( userinfo, "cl_mm_session", va("%d", client->mm_session) );
}
else
{
if( client->individual_socket )
{
Netchan_Setup( &client->netchan, &client->socket, address, game_port );
}
else
{
Netchan_Setup( &client->netchan, socket, address, game_port );
}
}
// create default rating for the client and current gametype
ge->AddDefaultRating( ent, NULL );
// parse some info from the info strings
Q_strncpyz( client->userinfo, userinfo, sizeof( client->userinfo ) );
SV_UserinfoChanged( client );
// generate session id
for( i = 0; i < sizeof( svs.clients[0].session ) - 1; i++ ) {
const unsigned char symbols[65] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
client->session[i] = symbols[rand() % (sizeof( symbols )-1)];
}
client->session[i] = '\0';
return qtrue;
}
/*
=================
CL_ConnectionlessPacket
Responses to broadcasts, etc
=================
*/
void CL_ConnectionlessPacket( netadr_t from, msg_t *msg ) {
char *s;
char *c;
MSG_BeginReading( msg );
MSG_ReadLong( msg ); // skip the -1
s = MSG_ReadStringLine( msg );
Cmd_TokenizeString( s );
c = Cmd_Argv(0);
Com_DPrintf ("CL packet %s: %s\n", NET_AdrToString(from), c);
// challenge from the server we are connecting to
if ( !strcmp(c, "challengeResponse") ) {
if ( cls.state != CA_CONNECTING ) {
Com_Printf( "Unwanted challenge response received. Ignored.\n" );
} else {
// start sending challenge repsonse instead of challenge request packets
clc.challenge = atoi(Cmd_Argv(1));
cls.state = CA_CHALLENGING;
clc.connectPacketCount = 0;
clc.connectTime = -99999;
// take this address as the new server address. This allows
// a server proxy to hand off connections to multiple servers
clc.serverAddress = from;
}
return;
}
// server connection
if ( !strcmp(c, "connectResponse") ) {
if ( cls.state >= CA_CONNECTED ) {
Com_Printf ("Dup connect received. Ignored.\n");
return;
}
if ( cls.state != CA_CHALLENGING ) {
Com_Printf ("connectResponse packet while not connecting. Ignored.\n");
return;
}
if ( !NET_CompareBaseAdr( from, clc.serverAddress ) ) {
Com_Printf( "connectResponse from a different address. Ignored.\n" );
Com_Printf( "%s should have been %s\n", NET_AdrToString( from ),
NET_AdrToString( clc.serverAddress ) );
return;
}
Netchan_Setup (NS_CLIENT, &clc.netchan, from, Cvar_VariableIntegerValue( "qport" ) );
cls.state = CA_CONNECTED;
clc.lastPacketSentTime = -9999; // send first packet immediately
return;
}
// a disconnect message from the server, which will happen if the server
// dropped the connection but it is still getting packets from us
if (!strcmp(c, "disconnect")) {
CL_DisconnectPacket( from );
return;
}
// echo request from server
if ( !strcmp(c, "echo") ) {
NET_OutOfBandPrint( NS_CLIENT, from, "%s", Cmd_Argv(1) );
return;
}
// print request from server
if ( !strcmp(c, "print") ) {
s = MSG_ReadString( msg );
UI_UpdateConnectionMessageString( s );
Com_Printf( "%s", s );
return;
}
Com_DPrintf ("Unknown connectionless packet command.\n");
}
/*
* @brief A connection request that did not come from the master.
*/
static void Svc_Connect(void) {
char user_info[MAX_USER_INFO_STRING];
sv_client_t *cl, *client;
int32_t i;
Com_Debug("Svc_Connect()\n");
net_addr_t *addr = &net_from;
const int32_t version = strtol(Cmd_Argv(1), NULL, 0);
// resolve protocol
if (version != PROTOCOL) {
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nServer is version %d.\n", PROTOCOL);
return;
}
const uint8_t qport = strtoul(Cmd_Argv(2), NULL, 0);
const uint32_t challenge = strtoul(Cmd_Argv(3), NULL, 0);
// copy user_info, leave room for ip stuffing
g_strlcpy(user_info, Cmd_Argv(4), sizeof(user_info) - 25);
if (*user_info == '\0') { // catch empty user_info
Com_Print("Empty user_info from %s\n", Net_NetaddrToString(addr));
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nConnection refused\n");
return;
}
if (strchr(user_info, '\xFF')) { // catch end of message in string exploit
Com_Print("Illegal user_info contained xFF from %s\n", Net_NetaddrToString(addr));
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nConnection refused\n");
return;
}
if (strlen(GetUserInfo(user_info, "ip"))) { // catch spoofed ips
Com_Print("Illegal user_info contained ip from %s\n", Net_NetaddrToString(addr));
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nConnection refused\n");
return;
}
if (!ValidateUserInfo(user_info)) { // catch otherwise invalid user_info
Com_Print("Invalid user_info from %s\n", Net_NetaddrToString(addr));
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nConnection refused\n");
return;
}
// force the ip so the game can filter on it
SetUserInfo(user_info, "ip", Net_NetaddrToString(addr));
// enforce a valid challenge to avoid denial of service attack
for (i = 0; i < MAX_CHALLENGES; i++) {
if (Net_CompareClientNetaddr(addr, &svs.challenges[i].addr)) {
if (challenge == svs.challenges[i].challenge) {
svs.challenges[i].challenge = 0;
break; // good
}
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nBad challenge\n");
return;
}
}
if (i == MAX_CHALLENGES) {
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nNo challenge for address\n");
return;
}
// resolve the client slot
client = NULL;
// first check for an ungraceful reconnect (client crashed, perhaps)
for (i = 0, cl = svs.clients; i < sv_max_clients->integer; i++, cl++) {
const net_chan_t *ch = &cl->net_chan;
if (cl->state == SV_CLIENT_FREE) // not in use, not interested
continue;
// the base address and either the qport or real port must match
if (Net_CompareClientNetaddr(addr, &ch->remote_address)) {
if (addr->port == ch->remote_address.port || qport == ch->qport) {
client = cl;
break;
}
}
}
// otherwise, treat as a fresh connect to a new slot
if (!client) {
for (i = 0, cl = svs.clients; i < sv_max_clients->integer; i++, cl++) {
if (cl->state == SV_CLIENT_FREE && !cl->edict->ai) { // we have a free one
client = cl;
break;
}
}
}
// no soup for you, next!!
if (!client) {
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nServer is full\n");
Com_Debug("Rejected a connection\n");
return;
}
// give the game a chance to reject this connection or modify the user_info
if (!(svs.game->ClientConnect(client->edict, user_info))) {
const char *rejmsg = GetUserInfo(user_info, "rejmsg");
if (strlen(rejmsg)) {
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\n%s\nConnection refused\n", rejmsg);
} else {
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "print\nConnection refused\n");
}
Com_Debug("Game rejected a connection\n");
return;
}
// parse some info from the info strings
g_strlcpy(client->user_info, user_info, sizeof(client->user_info));
Sv_UserInfoChanged(client);
// send the connect packet to the client
Netchan_OutOfBandPrint(NS_UDP_SERVER, addr, "client_connect %s", sv_download_url->string);
Netchan_Setup(NS_UDP_SERVER, &client->net_chan, addr, qport);
Mem_InitBuffer(&client->datagram.buffer, client->datagram.data, sizeof(client->datagram.data));
client->datagram.buffer.allow_overflow = true;
client->last_message = svs.real_time; // don't timeout
client->state = SV_CLIENT_CONNECTED;
}
/*
==================
SVC_DirectConnect
A connection request that did not come from the master
==================
*/
void SVC_DirectConnect (void)
{
char userinfo[1024];
netadr_t adr;
int i;
client_t *cl, *newcl;
edict_t *ent;
int edictnum;
char *s;
int clients, spectators;
qbool spectator;
int qport;
int version;
int challenge;
version = atoi(Cmd_Argv(1));
if (version != PROTOCOL_VERSION)
{
Netchan_OutOfBandPrint (NS_SERVER, net_from, "%c\nServer is version %4.2f.\n", A2C_PRINT, QW_VERSION);
Com_Printf ("* rejected connect from version %i\n", version);
return;
}
qport = atoi(Cmd_Argv(2));
challenge = atoi(Cmd_Argv(3));
// note an extra byte is needed to replace spectator key
strlcpy (userinfo, Cmd_Argv(4), sizeof(userinfo)-1);
// see if the challenge is valid
if (net_from.type != NA_LOOPBACK)
{
for (i=0 ; i<MAX_CHALLENGES ; i++)
{
if (NET_CompareBaseAdr (net_from, svs.challenges[i].adr))
{
if (challenge == svs.challenges[i].challenge)
break; // good
Netchan_OutOfBandPrint (NS_SERVER, net_from, "%c\nBad challenge.\n", A2C_PRINT);
return;
}
}
if (i == MAX_CHALLENGES)
{
Netchan_OutOfBandPrint (NS_SERVER, net_from, "%c\nNo challenge for address.\n", A2C_PRINT);
return;
}
}
// check for password or spectator_password
s = Info_ValueForKey (userinfo, "spectator");
if (s[0] && strcmp(s, "0"))
{
if (sv_spectatorPassword.string[0] &&
Q_stricmp(sv_spectatorPassword.string, "none") &&
strcmp(sv_spectatorPassword.string, s) )
{ // failed
Com_Printf ("%s:spectator password failed\n", NET_AdrToString (net_from));
Netchan_OutOfBandPrint (NS_SERVER, net_from, "%c\nrequires a spectator password\n\n", A2C_PRINT);
return;
}
Info_RemoveKey (userinfo, "spectator");
Info_SetValueForStarKey (userinfo, "*spectator", "1", MAX_INFO_STRING);
spectator = true;
}
else
{
s = Info_ValueForKey (userinfo, "password");
if (sv_password.string[0] &&
Q_stricmp(sv_password.string, "none") &&
strcmp(sv_password.string, s) )
{
Com_Printf ("%s:password failed\n", NET_AdrToString (net_from));
Netchan_OutOfBandPrint (NS_SERVER, net_from, "%c\nserver requires a password\n\n", A2C_PRINT);
return;
}
spectator = false;
Info_RemoveKey (userinfo, "password");
}
#ifdef MAUTH
// Check that the client is allowed to connect...
if( net_from.type != NA_LOOPBACK && !COM_CheckParm("-nomauth") )
{
authclient_t *authclient;
// Try the auth token queue first...
authclient = SV_AuthListFind(&authtokq, Info_ValueForKey(userinfo, "name"));
if( authclient == NULL )
{
// Fall back to checking if they had already connected and are in the
// client queue already (i.e. were on here before a map change)...
authclient = SV_AuthListFind(&authclientq, Info_ValueForKey(userinfo, "name"));
if( authclient == NULL )
{
// FIXME drop with reason
Com_Printf ("MAUTH: Client %s not in a queue; connect refused.\n", Info_ValueForKey(userinfo, "name"));
return;
}
}
else
{
// They're valid, so move them to the main client queue from the
// auth cache queue...
SV_AuthListMove(&authtokq, &authclientq, authclient);
}
// Move to auth'd clients queue if they're valid...
if( !authclient->valid )
{
// FIXME drop with reason
Com_Printf ("MAUTH: Client %s not validated yet; connect refused.\n", Info_ValueForKey(userinfo, "name"));
return;
}
//SV_AuthListPrint(&authtokq);
//SV_AuthListPrint(&authclientq);
Com_Printf ("MAUTH: Client %s connection allowed.\n", Info_ValueForKey(userinfo, "name"));
}
else
{
Com_Printf("MAUTH: loopback or disabled; allowing client connection.\n");
}
#endif
adr = net_from;
// if there is already a slot for this ip, reuse it
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
{
if (cl->state == cs_free)
continue;
if (NET_CompareBaseAdr (adr, cl->netchan.remote_address)
&& ( cl->netchan.qport == qport
|| adr.port == cl->netchan.remote_address.port ))
{
if (cl->state == cs_connected) {
Com_Printf ("%s:dup connect\n", NET_AdrToString (adr));
return;
}
Com_Printf ("%s:reconnect\n", NET_AdrToString (adr));
if (cl->state == cs_spawned)
{
SV_DropClient (cl);
SV_ClearReliable (cl); // don't send the disconnect
}
cl->state = cs_free;
break;
}
}
// count up the clients and spectators and find an empty client slot
clients = spectators = 0;
newcl = NULL;
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++,cl++)
{
if (cl->state == cs_free) {
if (!newcl)
newcl = cl; // grab first available slot
continue;
}
if (cl->spectator)
spectators++;
else
clients++;
}
// if at server limits, refuse connection
if ( (spectator && spectators >= (int)maxspectators.value)
|| (!spectator && clients >= (int)maxclients.value)
|| !newcl)
{
Com_Printf ("%s:full connect\n", NET_AdrToString (adr));
Netchan_OutOfBandPrint (NS_SERVER, adr, "%c\nserver is full\n\n", A2C_PRINT);
return;
}
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
memset (newcl, 0, sizeof(*newcl));
newcl->userid = SV_GenerateUserID();
strlcpy (newcl->userinfo, userinfo, sizeof(newcl->userinfo));
Netchan_OutOfBandPrint (NS_SERVER, adr, "%c", S2C_CONNECTION );
Netchan_Setup (NS_SERVER, &newcl->netchan, adr, qport);
newcl->state = cs_connected;
SZ_Init (&newcl->datagram, newcl->datagram_buf, sizeof(newcl->datagram_buf));
newcl->datagram.allowoverflow = true;
// spectator mode can ONLY be set at join time
newcl->spectator = spectator;
// extract extensions bits
newcl->extensions = atoi(Info_ValueForKey(newcl->userinfo, "*z_ext"));
Info_RemoveKey (newcl->userinfo, "*z_ext");
#ifdef VWEP_TEST
newcl->extensions |= atoi(Info_ValueForKey(newcl->userinfo, "*vwtest")) ? Z_EXT_VWEP : 0;
Info_RemoveKey (newcl->userinfo, "*vwtest");
#endif
// See if the client is using a proxy. The best test I can come up with for now...
newcl->uses_proxy = *Info_ValueForKey(newcl->userinfo, "Qizmo") ? true : false;
edictnum = (newcl - svs.clients) + 1;
ent = EDICT_NUM(edictnum);
ent->inuse = true;
newcl->edict = ent;
// parse some info from the info strings
SV_ExtractFromUserinfo (newcl);
// JACK: Init the floodprot stuff.
for (i=0; i<10; i++)
newcl->whensaid[i] = 0.0;
newcl->whensaidhead = 0;
newcl->lockedtill = 0;
// call the progs to get default spawn parms for the new client
PR_ExecuteProgram (pr_global_struct->SetNewParms);
for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
newcl->spawn_parms[i] = (&pr_global_struct->parm1)[i];
if (newcl->spectator)
Com_Printf ("Spectator %s connected\n", newcl->name);
else
Com_DPrintf ("Client %s connected\n", newcl->name);
newcl->sendinfo = true;
}
/*
=================
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 );
}
/*
* A connection request that did not come from the master
*/
void
SVC_DirectConnect(void)
{
char userinfo[MAX_INFO_STRING];
netadr_t adr;
int i;
client_t *cl, *newcl;
client_t temp;
edict_t *ent;
int edictnum;
int version;
int qport;
int challenge;
adr = net_from;
Com_DPrintf("SVC_DirectConnect ()\n");
version = (int)strtol(Cmd_Argv(1), (char **)NULL, 10);
if (version != PROTOCOL_VERSION)
{
Netchan_OutOfBandPrint(NS_SERVER, adr,
"print\nServer is version %s.\n", YQ2VERSION);
Com_DPrintf(" rejected connect from version %i\n", version);
return;
}
qport = (int)strtol(Cmd_Argv(2), (char **)NULL, 10);
challenge = (int)strtol(Cmd_Argv(3), (char **)NULL, 10);
Q_strlcpy(userinfo, Cmd_Argv(4), sizeof(userinfo));
/* force the IP key/value pair so the game can filter based on ip */
Info_SetValueForKey(userinfo, "ip", NET_AdrToString(net_from));
/* attractloop servers are ONLY for local clients */
if (sv.attractloop)
{
if (!NET_IsLocalAddress(adr))
{
Com_Printf("Remote connect in attract loop. Ignored.\n");
Netchan_OutOfBandPrint(NS_SERVER, adr,
"print\nConnection refused.\n");
return;
}
}
/* see if the challenge is valid */
if (!NET_IsLocalAddress(adr))
{
for (i = 0; i < MAX_CHALLENGES; i++)
{
if (NET_CompareBaseAdr(net_from, svs.challenges[i].adr))
{
if (challenge == svs.challenges[i].challenge)
{
break; /* good */
}
Netchan_OutOfBandPrint(NS_SERVER, adr,
"print\nBad challenge.\n");
return;
}
}
if (i == MAX_CHALLENGES)
{
Netchan_OutOfBandPrint(NS_SERVER, adr,
"print\nNo challenge for address.\n");
return;
}
}
newcl = &temp;
memset(newcl, 0, sizeof(client_t));
/* if there is already a slot for this ip, reuse it */
for (i = 0, cl = svs.clients; i < maxclients->value; i++, cl++)
{
if (cl->state < cs_connected)
{
continue;
}
if (NET_CompareBaseAdr(adr, cl->netchan.remote_address) &&
((cl->netchan.qport == qport) ||
(adr.port == cl->netchan.remote_address.port)))
{
if (!NET_IsLocalAddress(adr))
{
Com_DPrintf("%s:reconnect rejected : too soon\n",
NET_AdrToString(adr));
return;
}
Com_Printf("%s:reconnect\n", NET_AdrToString(adr));
newcl = cl;
goto gotnewcl;
}
}
/* find a client slot */
newcl = NULL;
for (i = 0, cl = svs.clients; i < maxclients->value; i++, cl++)
{
if (cl->state == cs_free)
{
newcl = cl;
break;
}
}
if (!newcl)
{
Netchan_OutOfBandPrint(NS_SERVER, adr, "print\nServer is full.\n");
Com_DPrintf("Rejected a connection.\n");
return;
}
gotnewcl:
/* build a new connection accept the new client this
is the only place a client_t is ever initialized */
*newcl = temp;
sv_client = newcl;
edictnum = (newcl - svs.clients) + 1;
ent = EDICT_NUM(edictnum);
newcl->edict = ent;
newcl->challenge = challenge; /* save challenge for checksumming */
/* get the game a chance to reject this connection or modify the userinfo */
if (!(ge->ClientConnect(ent, userinfo)))
{
if (*Info_ValueForKey(userinfo, "rejmsg"))
{
Netchan_OutOfBandPrint(NS_SERVER, adr,
"print\n%s\nConnection refused.\n",
Info_ValueForKey(userinfo, "rejmsg"));
}
else
{
Netchan_OutOfBandPrint(NS_SERVER, adr,
"print\nConnection refused.\n");
}
Com_DPrintf("Game rejected a connection.\n");
return;
}
/* parse some info from the info strings */
Q_strlcpy(newcl->userinfo, userinfo, sizeof(newcl->userinfo));
SV_UserinfoChanged(newcl);
/* send the connect packet to the client */
Netchan_OutOfBandPrint(NS_SERVER, adr, "client_connect");
Netchan_Setup(NS_SERVER, &newcl->netchan, adr, qport);
newcl->state = cs_connected;
SZ_Init(&newcl->datagram, newcl->datagram_buf, sizeof(newcl->datagram_buf));
newcl->datagram.allowoverflow = true;
newcl->lastmessage = svs.realtime; /* don't timeout */
newcl->lastconnect = svs.realtime;
}
/*
==================
SV_DirectConnect
A "connect" OOB command has been received
==================
*/
void SV_DirectConnect( netadr_t from, const Cmd::Args& args )
{
char userinfo[ MAX_INFO_STRING ];
int i;
client_t *cl, *newcl;
client_t temp;
sharedEntity_t *ent;
int clientNum;
int version;
int qport;
int challenge;
const char *password;
int startIndex;
bool denied;
char reason[ MAX_STRING_CHARS ];
int count;
const char *ip;
#ifdef HAVE_GEOIP
const char *country = nullptr;
#endif
if ( args.Argc() < 2 )
{
return;
}
Log::Debug( "SVC_DirectConnect ()" );
Q_strncpyz( userinfo, args.Argv(1).c_str(), sizeof( userinfo ) );
// DHM - Nerve :: Update Server allows any protocol to connect
// NOTE TTimo: but we might need to store the protocol around for potential non http/ftp clients
version = atoi( Info_ValueForKey( userinfo, "protocol" ) );
if ( version != PROTOCOL_VERSION )
{
NET_OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\nServer uses protocol version %i (yours is %i).", PROTOCOL_VERSION, version );
Log::Debug( " rejected connect from version %i", version );
return;
}
challenge = atoi( Info_ValueForKey( userinfo, "challenge" ) );
qport = atoi( Info_ValueForKey( userinfo, "qport" ) );
// quick reject
for ( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ )
{
// DHM - Nerve :: This check was allowing clients to reconnect after zombietime(2 secs)
//if ( cl->state == CS_FREE ) {
//continue;
//}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) )
{
if ( ( svs.time - cl->lastConnectTime )
< ( sv_reconnectlimit->integer * 1000 ) )
{
Log::Debug( "%s: reconnect rejected: too soon", NET_AdrToString( from ) );
return;
}
break;
}
}
if ( NET_IsLocalAddress( from ) )
{
ip = "localhost";
}
else
{
ip = NET_AdrToString( from );
}
if ( ( strlen( ip ) + strlen( userinfo ) + 4 ) >= MAX_INFO_STRING )
{
NET_OutOfBandPrint( netsrc_t::NS_SERVER, from,
"print\nUserinfo string length exceeded. "
"Try removing setu cvars from your config." );
return;
}
Info_SetValueForKey( userinfo, "ip", ip, false );
// see if the challenge is valid (local clients don't need to challenge)
if ( !NET_IsLocalAddress( from ) )
{
int ping;
for ( i = 0; i < MAX_CHALLENGES; i++ )
{
if ( NET_CompareAdr( from, svs.challenges[ i ].adr ) )
{
if ( challenge == svs.challenges[ i ].challenge )
{
break; // good
}
}
}
if ( i == MAX_CHALLENGES )
{
NET_OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\n[err_dialog]No or bad challenge for address." );
return;
}
// force the IP address key/value pair, so the game can filter based on it
Info_SetValueForKey( userinfo, "ip", NET_AdrToString( from ), false );
if ( svs.challenges[ i ].firstPing == 0 )
{
ping = svs.time - svs.challenges[ i ].pingTime;
svs.challenges[ i ].firstPing = ping;
}
else
{
ping = svs.challenges[ i ].firstPing;
}
#ifdef HAVE_GEOIP
country = NET_GeoIP_Country( &from );
if ( country )
{
Log::Notice( "Client %i connecting from %s with %i challenge ping\n", i, country, ping );
}
else
{
Log::Notice( "Client %i connecting from somewhere unknown with %i challenge ping\n", i, ping );
}
#else
Log::Notice( "Client %i connecting with %i challenge ping\n", i, ping );
#endif
svs.challenges[ i ].connected = true;
// never reject a LAN client based on ping
if ( !Sys_IsLANAddress( from ) )
{
if ( sv_minPing->value && ping < sv_minPing->value )
{
NET_OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\n[err_dialog]Server is for high pings only" );
Log::Debug( "Client %i rejected on a too low ping", i );
return;
}
if ( sv_maxPing->value && ping > sv_maxPing->value )
{
NET_OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\n[err_dialog]Server is for low pings only" );
Log::Debug( "Client %i rejected on a too high ping: %i", i, ping );
return;
}
}
}
else
{
// force the "ip" info key to "localhost"
Info_SetValueForKey( userinfo, "ip", "localhost", false );
}
newcl = &temp;
memset( newcl, 0, sizeof( client_t ) );
// if there is already a slot for this IP address, reuse it
for ( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ )
{
if ( cl->state == clientState_t::CS_FREE )
{
continue;
}
if ( NET_CompareBaseAdr( from, cl->netchan.remoteAddress )
&& ( cl->netchan.qport == qport
|| from.port == cl->netchan.remoteAddress.port ) )
{
Log::Notice( "%s:reconnect\n", NET_AdrToString( from ) );
newcl = cl;
// this doesn't work because it nukes the players userinfo
// // disconnect the client from the game first so any flags the
// // player might have are dropped
// VM_Call( gvm, GAME_CLIENT_DISCONNECT, newcl - svs.clients );
//
goto gotnewcl;
}
}
// find a client slot
// if "sv_privateClients" is set > 0, then that number
// of client slots will be reserved for connections that
// have "password" set to the value of "sv_privatePassword"
// Info requests will report the maxclients as if the private
// slots didn't exist, to prevent people from trying to connect
// to a full server.
// This is to allow us to reserve a couple slots here on our
// servers so we can play without having to kick people.
// check for privateClient password
password = Info_ValueForKey( userinfo, "password" );
if ( !strcmp( password, sv_privatePassword->string ) )
{
startIndex = 0;
}
else
{
// skip past the reserved slots
startIndex = sv_privateClients->integer;
}
newcl = nullptr;
for ( i = startIndex; i < sv_maxclients->integer; i++ )
{
cl = &svs.clients[ i ];
if ( cl->state == clientState_t::CS_FREE )
{
newcl = cl;
break;
}
}
if ( !newcl )
{
if ( NET_IsLocalAddress( from ) )
{
count = 0;
for ( i = startIndex; i < sv_maxclients->integer; i++ )
{
cl = &svs.clients[ i ];
if ( SV_IsBot(cl) )
{
count++;
}
}
// if they're all bots
if ( count >= sv_maxclients->integer - startIndex )
{
SV_DropClient( &svs.clients[ sv_maxclients->integer - 1 ], "only bots on server" );
newcl = &svs.clients[ sv_maxclients->integer - 1 ];
}
else
{
Com_Error( errorParm_t::ERR_FATAL, "server is full on local connect" );
}
}
else
{
NET_OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\n%s", sv_fullmsg->string );
Log::Debug( "Rejected a connection." );
return;
}
}
// we got a newcl, so reset the reliableSequence and reliableAcknowledge
cl->reliableAcknowledge = 0;
cl->reliableSequence = 0;
gotnewcl:
// build a new connection
// accept the new client
// this is the only place a client_t is ever initialized
*newcl = std::move(temp);
clientNum = newcl - svs.clients;
ent = SV_GentityNum( clientNum );
newcl->gentity = ent;
ent->r.svFlags = 0;
#ifdef HAVE_GEOIP
if ( country )
{
Info_SetValueForKey( userinfo, "geoip", country, false );
}
#endif
// save the challenge
newcl->challenge = challenge;
// save the address
Netchan_Setup( netsrc_t::NS_SERVER, &newcl->netchan, from, qport );
// init the netchan queue
// Save the pubkey
Q_strncpyz( newcl->pubkey, Info_ValueForKey( userinfo, "pubkey" ), sizeof( newcl->pubkey ) );
Info_RemoveKey( userinfo, "pubkey", false );
// save the userinfo
Q_strncpyz( newcl->userinfo, userinfo, sizeof( newcl->userinfo ) );
// get the game a chance to reject this connection or modify the userinfo
denied = gvm.GameClientConnect( reason, sizeof( reason ), clientNum, true, false ); // firstTime = true
if ( denied )
{
NET_OutOfBandPrint( netsrc_t::NS_SERVER, from, "print\n[err_dialog]%s", reason );
Log::Debug( "Game rejected a connection: %s.", reason );
return;
}
SV_UserinfoChanged( newcl );
// DHM - Nerve :: Clear out firstPing now that client is connected
svs.challenges[ i ].firstPing = 0;
// send the connect packet to the client
NET_OutOfBandPrint( netsrc_t::NS_SERVER, from, "connectResponse" );
Log::Debug( "Going from CS_FREE to CS_CONNECTED for %s", newcl->name );
newcl->state = clientState_t::CS_CONNECTED;
newcl->nextSnapshotTime = svs.time;
newcl->lastPacketTime = svs.time;
newcl->lastConnectTime = svs.time;
// when we receive the first packet from the client, we will
// notice that it is from a different serverid and that the
// gamestate message was not just sent, forcing a retransmit
newcl->gamestateMessageNum = -1;
// if this was the first client on the server, or the last client
// the server can hold, send a heartbeat to the master.
count = 0;
for ( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ )
{
if ( svs.clients[ i ].state >= clientState_t::CS_CONNECTED )
{
count++;
}
}
if ( count == 1 || count == sv_maxclients->integer )
{
SV_Heartbeat_f();
}
}
