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sv_client.c
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sv_client.c
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/*
===========================================================================
Copyright (C) 2010-2013 Ninja and TheKelm of the IceOps-Team
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of CoD4X17a-Server source code.
CoD4X17a-Server source code is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
CoD4X17a-Server source code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
===========================================================================
*/
#include "q_shared.h"
#include "qcommon_io.h"
#include "qcommon_mem.h"
#include "qcommon.h"
#include "huffman.h"
#include "msg.h"
#include "server.h"
#include "net_game_conf.h"
#include "misc.h"
#include "g_sv_shared.h"
#include "plugin_handler.h"
#include "q_platform.h"
#include "sys_main.h"
#include "punkbuster.h"
#include "scr_vm.h"
#include "cmd.h"
#include "sys_thread.h"
#include "hl2rcon.h"
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
//AntiDoS
/*
int SV_ChallengeCookies(netadr_t from){
char string[128];
int var_01 = svs.time & 0xff000000;
Com_sprintf(string, sizeof(string), "");
return var_01;
}
*/
/*
=================
SV_GetChallenge
A "getchallenge" OOB command has been received
Returns a challenge number that can be used
in a subsequent connectResponse command.
We do this to prevent denial of service attacks that
flood the server with invalid connection IPs. With a
challenge, they must give a valid IP address.
If we are authorizing, a challenge request will cause a packet
to be sent to the authorize server.
When an authorizeip is returned, a challenge response will be
sent to that ip.
ioquake3: we added a possibility for clients to add a challenge
to their packets, to make it more difficult for malicious servers
to hi-jack client connections.
Also, the auth stuff is completely disabled for com_standalone games
as well as IPv6 connections, since there is no way to use the
v4-only auth server for these new types of connections.
=================
*/
__optimize3 __regparm1 void SV_GetChallenge(netadr_t *from)
{
int i;
int oldest;
int oldestTime;
int oldestClientTime;
int clientChallenge;
challenge_t *challenge;
oldest = 0;
oldestClientTime = oldestTime = 0x7fffffff;
// see if we already have a challenge for this ip
challenge = &svse.challenges[0];
clientChallenge = atoi(SV_Cmd_Argv(1));
for(i = 0 ; i < MAX_CHALLENGES ; i++, challenge++)
{
if(NET_CompareAdr(from, &challenge->adr))
{
if(challenge->connected){
Com_Memset(challenge, 0 ,sizeof(challenge_t));
continue;
}
if(challenge->time < oldestClientTime)
oldestClientTime = challenge->time;
break;
}
if(challenge->time < oldestTime)
{
oldestTime = challenge->time;
oldest = i;
}
}
if (i == MAX_CHALLENGES)
{
// this is the first time this client has asked for a challenge
challenge = &svse.challenges[oldest];
challenge->clientChallenge = clientChallenge;
challenge->adr = *from;
challenge->firstTime = svs.time;
challenge->connected = qfalse;
challenge->pbguid[31] = 0;
Q_strncpyz(challenge->pbguid, SV_Cmd_Argv(2),33);
challenge->ipAuthorize = 0;
challenge->challenge = ( (rand() << 16) ^ rand() ) ^ svs.time;
}
challenge->time = svs.time;
// Drop the authorize stuff if this client is coming in via IPv6 as the auth server does not support ipv6.
// Drop also for addresses coming in on local LAN and for stand-alone games independent from id's assets.
if(challenge->adr.type == NA_IP && svse.authorizeAddress.type != NA_DOWN && !Sys_IsLANAddress(from) && sv_authorizemode->integer != -1)
{
// look up the authorize server's IP
if(svse.authorizeAddress.type == NA_BAD)
{
Com_Printf( "Resolving %s\n", AUTHORIZE_SERVER_NAME );
if (NET_StringToAdr(AUTHORIZE_SERVER_NAME, &svse.authorizeAddress, NA_IP))
{
svse.authorizeAddress.port = BigShort( PORT_AUTHORIZE );
Com_Printf( "%s resolved to %s\n", AUTHORIZE_SERVER_NAME, NET_AdrToString(&svse.authorizeAddress));
}
}
// we couldn't contact the auth server, let them in.
if(svse.authorizeAddress.type == NA_BAD){
Com_Printf("Couldn't resolve auth server address\n");
svse.authorizeAddress.type = NA_DOWN;
return;
}
if(svse.authorizeAddress.type == NA_IP && challenge->adr.type == NA_IP && NET_CompareBaseAdr(from, &svse.authorizeAddress)){
//Reset the default socket so that this is forwarded to all sockets
if(NET_GetDefaultCommunicationSocket() == NULL){
NET_RegisterDefaultCommunicationSocket(from);
svse.authorizeAddress.sock = from->sock;
}
from->port = BigShort(PORT_AUTHORIZE);
NET_OutOfBandPrint( NS_SERVER, from, "getIpAuthorize %i %s \"\" 0", challenge->challenge, NET_AdrToStringShort(from));
return;
}
// if they have been challenging for a long time and we
// haven't heard anything from the authorize server, go ahead and
// let them in, assuming the id server is down
else if(svs.time - challenge->firstTime > AUTHORIZE_TIMEOUT)
Com_PrintWarning( "Activisions authorize server timed out - Accept client without validating him\n" );
else
{
if(!challenge->pbguid[31]){
return;
}
// otherwise send their ip to the authorize server
Com_DPrintf( "sending getIpAuthorize for %s\n", NET_AdrToString( from ));
// the 0 is for backwards compatibility with obsolete sv_allowanonymous flags
// getIpAuthorize <challenge> <IP> <game> 0 <auth-flag>
NET_OutOfBandPrint( NS_SERVER, from, "needcdkey");
NET_OutOfBandPrint( NS_SERVER, &svse.authorizeAddress,
"getIpAuthorize %i %s \"\" 0 PB \"%s\"",challenge->challenge, NET_AdrToStringShort(from), challenge->pbguid );
return;
}
}
if(!challenge->pbguid[31]){
return;
}
challenge->pingTime = com_frameTime;
NET_OutOfBandPrint(NS_SERVER, &challenge->adr, "challengeResponse %d %d",
challenge->challenge, clientChallenge);
}
/*
====================
SV_AuthorizeIpPacket
A packet has been returned from the authorize server.
If we have a challenge adr for that ip, send the
challengeResponse to it
====================
*/
__optimize3 __regparm1 void SV_AuthorizeIpPacket( netadr_t *from ) {
int challenge;
int i;
char *s;
char *r;
char *p;
if ( !NET_CompareBaseAdr( from, &svse.authorizeAddress )) {
Com_Printf( "SV_AuthorizeIpPacket: not from authorize server\n" );
return;
}
//This binds the serveraddress to a specific socket - No longer will this server be contacted over all sockets
if(NET_GetDefaultCommunicationSocket() == NULL){
NET_RegisterDefaultCommunicationSocket(from);
}
challenge = atoi( SV_Cmd_Argv( 1 ) );
for (i = 0 ; i < MAX_CHALLENGES ; i++) {
if ( svse.challenges[i].challenge == challenge ) {
break;
}
}
if ( i == MAX_CHALLENGES ) {
Com_Printf( "SV_AuthorizeIpPacket: challenge not found\n" );
return;
}
if(svse.challenges[i].connected){
return;
}
// send a packet back to the original client
s = SV_Cmd_Argv( 2 );
r = SV_Cmd_Argv( 3 ); // reason
p = SV_Cmd_Argv( 5 ); //pbguid
if ( !Q_stricmp( s, "demo" ) ) {
// they are a demo client trying to connect to a real server
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "error\nServer is not a demo server\n" );
// clear the challenge record so it won't timeout and let them through
Com_Memset( &svse.challenges[i], 0, sizeof( svse.challenges[i] ) );
return;
}
if ( !Q_stricmp( s, "accept" )) {
if(Q_stricmp( p, svse.challenges[i].pbguid)){
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "error\nEXE_ERR_BAD_CDKEY");
Com_Memset( &svse.challenges[i], 0, sizeof( svse.challenges[i] ));
return;
}else{
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "challengeResponse %i", svse.challenges[i].challenge);
svse.challenges[i].pingTime = com_frameTime;
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "print\n^2Success...");
svse.challenges[i].ipAuthorize = 1; //CD-KEY was valid
return;
}
}
if (!Q_stricmp( s, "deny" )) {
svse.challenges[i].ipAuthorize = -1;
if(!Q_stricmp(r, "CLIENT_UNKNOWN_TO_AUTH")){
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "print\nUnkown how to auth client\n");
if(sv_authorizemode->integer < 1){
if(svs.time - svse.challenges[i].firstTime > AUTHORIZE_TIMEOUT){
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "challengeResponse %i", svse.challenges[i].challenge);
}
return;
}
} else if(sv_authorizemode->integer < 1) {
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "print\n^1Failed. ^5Trying something else...");
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "challengeResponse %i", svse.challenges[i].challenge);
svse.challenges[i].pingTime = com_frameTime;
svse.challenges[i].ipAuthorize = -1; //CD-KEY was invalid
return;
} else if(!Q_stricmp(r, "INVALID_CDKEY")){
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "error\n^1Someone is using this CD Key");
} else if(r){
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "error\n^1Authorization Failed:\n%s\n", r );
}else{
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "error\n^1Someone is using this CD Key\n" );
}
Com_Memset( &svse.challenges[i], 0, sizeof( svse.challenges[i] ) );
return;
}
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "print\n^1Someone is using this CD Key\n" );
if(sv_authorizemode->integer < 1) {
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "print\n^1Failed. ^5Trying something else...");
NET_OutOfBandPrint( NS_SERVER, &svse.challenges[i].adr, "challengeResponse %i", svse.challenges[i].challenge);
svse.challenges[i].pingTime = com_frameTime;
svse.challenges[i].ipAuthorize = -1; //CD-KEY was invalid
}else{
Com_Memset( &svse.challenges[i], 0, sizeof( svse.challenges[i] ) );
}
}
/*
==================
SV_DirectConnect
A "connect" OOB command has been received
==================
*/
#define PB_MESSAGE "PunkBuster Q_strncpyz( userinfo, Cmd_Argv(1), sizeof(userinfo) );Anti-Cheat software must be installed " \
"and Enabled in order to join this server. An updated game patch can be downloaded from " \
"www.idsoftware.com"
__optimize3 __regparm1 void SV_DirectConnect( netadr_t *from ) {
char userinfo[MAX_INFO_STRING];
int reconnectTime;
int c;
int j;
int i;
client_t *cl, *newcl;
int count;
char nick[33];
char ip_str[128];
int clientNum;
int version;
int qport;
int challenge;
char *password;
const char *denied;
const char *PunkBusterStatus;
Q_strncpyz( userinfo, SV_Cmd_Argv(1), sizeof(userinfo) );
challenge = atoi( Info_ValueForKey( userinfo, "challenge" ) );
qport = atoi( Info_ValueForKey( userinfo, "qport" ) );
// see if the challenge is valid
int ping;
for (c=0 ; c < MAX_CHALLENGES ; c++) {
if (NET_CompareAdr(from, &svse.challenges[c].adr)) {
if ( challenge == svse.challenges[c].challenge ) {
break; // good
}
}
}
if (c == MAX_CHALLENGES || challenge == 0) {
NET_OutOfBandPrint( NS_SERVER, from, "error\nNo or bad challenge for address.\n" );
return;
}
newcl = NULL;
// quick reject
for (j=0, cl=svs.clients ; j < sv_maxclients->integer ; j++, cl++) {
if ( NET_CompareBaseAdr( from, &cl->netchan.remoteAddress ) && (cl->netchan.qport == qport || from->port == cl->netchan.remoteAddress.port )){
reconnectTime = (svs.time - cl->lastConnectTime);
if (reconnectTime < (sv_reconnectlimit->integer * 1000)) {
Com_Printf("%s -> reconnect rejected : too soon\n", NET_AdrToString (from));
NET_OutOfBandPrint( NS_SERVER, from, "print\nReconnect limit in effect... (%i)\n",
(sv_reconnectlimit->integer - (reconnectTime / 1000)));
return;
}else{
if(cl->state > CS_ZOMBIE){ //Free up used CGame-Resources first
SV_FreeClient( cl );
}
newcl = cl;
Com_Printf("reconnected: %s\n", NET_AdrToString(from));
cl->lastConnectTime = svs.time;
break;
}
}else if ( NET_CompareBaseAdr( from, &cl->netchan.remoteAddress ) && cl->state == CS_CONNECTED){
NET_OutOfBandPrint( NS_SERVER, from,
"error\nConnection refused:\nAn uncompleted connection from %s has been detected\nPlease try again later\n",
NET_AdrToString(&cl->netchan.remoteAddress));
Com_Printf("Rejected connection from %s. This is a Fake-Player-DoS protection\n", NET_AdrToString(&cl->netchan.remoteAddress));
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
}
// force the IP key/value pair so the game can filter based on ip
Com_sprintf(ip_str, sizeof(ip_str), "%s", NET_AdrToConnectionString( from ));
Info_SetValueForKey( userinfo, "ip", ip_str );
if(!newcl && svse.challenges[c].pingTime){
ping = com_frameTime - svse.challenges[c].pingTime;
Com_Printf( "Client %i connecting with %i challenge ping\n", c, ping );
svse.challenges[c].pingTime = 0;
if ( sv_minPing->integer && ping < sv_minPing->integer ) {
// don't let them keep trying until they get a big delay
NET_OutOfBandPrint( NS_SERVER, from, "error\nServer is for high ping players only minping: %i ms but your ping was: %i ms\n",sv_minPing->integer, ping);
Com_Printf("Client %i rejected on a too low ping\n", c);
// reset the address otherwise their ping will keep increasing
// with each connect message and they'd eventually be able to connect
svse.challenges[c].adr.port = 0;
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
if ( sv_maxPing->integer && ping > sv_maxPing->integer ) {
NET_OutOfBandPrint( NS_SERVER, from, "error\nServer is for low ping players only maxping: %i ms but your ping was: %i ms\n",sv_maxPing->integer, ping);
Com_Printf("Client %i rejected on a too high ping\n", c);
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
}
Q_strncpyz(nick, Info_ValueForKey( userinfo, "name" ),33);
denied = SV_PlayerBannedByip(from);
if(denied){
NET_OutOfBandPrint( NS_SERVER, from, "error\n%s\n", denied);
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
if(strlen(svse.challenges[c].pbguid) < 10){
NET_OutOfBandPrint( NS_SERVER, from, "error\nConnection rejected: No or invalid GUID found/provided.\n" );
Com_Printf("Rejected a connection: No or invalid GUID found/provided. Length: %i\n",
strlen(svse.challenges[c].pbguid));
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
version = atoi( Info_ValueForKey( userinfo, "protocol" ));
if ( version != PROTOCOL_VERSION ) {
NET_OutOfBandPrint( NS_SERVER, from, "error\nServer uses a different protocol version: %i\n You have to install the update to Call of Duty 4 v1.7", PROTOCOL_VERSION );
Com_Printf("rejected connect from version %i\n", version);
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
// 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.
//Get new slot for client
// check for privateClient password
password = Info_ValueForKey( userinfo, "password" );
if(!newcl){
if ( !strcmp( password, sv_privatePassword->string ) ) {
for ( j = 0; j < sv_privateClients->integer ; j++) {
cl = &svs.clients[j];
if (cl->state == CS_FREE) {
newcl = cl;
break;
}
}
}
}
if(*sv_password->string && Q_strncmp(sv_password->string, password, 32)){
NET_OutOfBandPrint( NS_SERVER, from, "error\nThis server has set a join-password\n^1Invalid Password\n");
Com_Printf("Connection rejected from %s - Invalid Password\n", NET_AdrToString(from));
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
//Process queue
for(i = 0 ; i < 10 ; i++){//Purge all older players from queue
if(svse.connectqueue[i].lasttime+21 < Com_GetRealtime()){
svse.connectqueue[i].lasttime = 0;
svse.connectqueue[i].firsttime = 0;
svse.connectqueue[i].challengeslot = 0;
svse.connectqueue[i].attempts = 0;
}
}
for(i = 0 ; i < 10 ; i++){//Move waiting players up in queue if there is a purged slot
if(svse.connectqueue[i].lasttime != 0){
if(svse.connectqueue[i+1].challengeslot == svse.connectqueue[i].challengeslot){
svse.connectqueue[i+1].lasttime = 0;
svse.connectqueue[i+1].firsttime = 0;
svse.connectqueue[i+1].challengeslot = 0;
svse.connectqueue[i+1].attempts = 0;
}
}else{
Com_Memcpy(&svse.connectqueue[i],&svse.connectqueue[i+1],(9-i)*sizeof(connectqueue_t));
}
}
for(i = 0 ; i < 10 ; i++){//Find highest slot or the one which is already assigned to this player
if(svse.connectqueue[i].firsttime == 0 || svse.connectqueue[i].challengeslot == c){
break;
}
}
if(i == 0 && !newcl){
for ( j = sv_privateClients->integer; j < sv_maxclients->integer ; j++) {
cl = &svs.clients[j];
if (cl->state == CS_FREE) {
newcl = cl;
svse.connectqueue[0].lasttime = 0;
svse.connectqueue[0].firsttime = 0;
svse.connectqueue[0].challengeslot = 0;
svse.connectqueue[0].attempts = 0;
break;
}
}
}
if ( !newcl ) {
if(i == 10){
NET_OutOfBandPrint( NS_SERVER, from, "error\nServer is full. More than 10 players are in queue.\n" );
return;
}else{
NET_OutOfBandPrint( NS_SERVER, from, "print\nServer is full. %i players wait before you.\n",i);
}
if(svse.connectqueue[i].attempts > 30){
NET_OutOfBandPrint( NS_SERVER, from, "error\nServer is full. %i players wait before you.\n",i);
svse.connectqueue[i].attempts = 0;
}else if(svse.connectqueue[i].attempts > 15 && i > 1){
NET_OutOfBandPrint( NS_SERVER, from, "error\nServer is full. %i players wait before you.\n",i);
svse.connectqueue[i].attempts = 0;
}else if(svse.connectqueue[i].attempts > 5 && i > 3){
NET_OutOfBandPrint( NS_SERVER, from, "error\nServer is full. %i players wait before you.\n",i);
svse.connectqueue[i].attempts = 0;
}
if(svse.connectqueue[i].firsttime == 0){
svse.connectqueue[i].firsttime = Com_GetRealtime();
}
svse.connectqueue[i].attempts++;
svse.connectqueue[i].lasttime = Com_GetRealtime();
svse.connectqueue[i].challengeslot = c;
return;
}
//gotnewcl:
Com_Memset(newcl, 0x00, sizeof(client_t));
newcl->authentication = svse.challenges[c].ipAuthorize;
newcl->power = 0; //Sets the default power for the client
newcl->challenge = svse.challenges[c].challenge; // save the challenge
// (build a new connection
// accept the new client
// this is the only place a client_t is ever initialized)
clientNum = newcl - svs.clients;
Q_strncpyz(cl->originguid, svse.challenges[c].pbguid, 33);
Q_strncpyz(cl->pbguid, svse.challenges[c].pbguid, 33); // save the pbguid
if(psvs.useuids != 1){
if(newcl->authentication != 1 && sv_authorizemode->integer != -1){
Com_Memset(newcl->pbguid, '0', 8);
}
}else{
char ret[33];
Com_sprintf(ret,sizeof(ret),"NoGUID*%.2x%.2x%.2x%.2x%.4x",from->ip[0],from->ip[1],from->ip[2],from->ip[3],from->port);
Q_strncpyz(newcl->pbguid, ret, sizeof(newcl->pbguid)); // save the pbguid
}
denied = NULL;
// save the userinfo
Q_strncpyz(newcl->userinfo, userinfo, 1024 );
PHandler_Event(PLUGINS_ONPLAYERCONNECT, clientNum, from, newcl->originguid, userinfo, newcl->authentication, &denied);
if(!psvs.useuids)
denied = SV_PlayerIsBanned(0, newcl->pbguid, from);
else if(newcl->uid != 0)
denied = SV_PlayerIsBanned(newcl->uid, NULL, from);
if(denied){
NET_OutOfBandPrint( NS_SERVER, from, "error\n%s", denied);
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
svse.connectqueue[i].lasttime = 0;
svse.connectqueue[i].firsttime = 0;
svse.connectqueue[i].challengeslot = 0;
svse.connectqueue[i].attempts = 0;
return;
}
if(strstr(Cvar_GetVariantString("noPbGuids"), newcl->originguid) && 32 == strlen(newcl->originguid) && newcl->authentication == 1){
newcl->noPb = qtrue;
}
if(newcl->noPb == qfalse){
PunkBusterStatus = PbAuthClient(NET_AdrToString(from), atoi(Info_ValueForKey( userinfo, "cl_punkbuster" )), newcl->pbguid);
if(PunkBusterStatus){
NET_OutOfBandPrint( NS_SERVER, from, "%s", PunkBusterStatus);
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
}
newcl->unknowndirectconnect1 = 0; //Whatever it is ???
newcl->hasVoip = 1;
newcl->gentity = SV_GentityNum(clientNum);
newcl->clscriptid = Scr_AllocArray();
// get the game a chance to reject this connection or modify the userinfo
denied = ClientConnect(clientNum, newcl->clscriptid);
if ( denied ) {
NET_OutOfBandPrint( NS_SERVER, from, "error\n%s\n", denied );
Com_Printf("Game rejected a connection: %s\n", denied);
SV_FreeClientScriptId(newcl);
Com_Memset( &svse.challenges[c], 0, sizeof( svse.challenges[c] ));
return;
}
svse.challenges[c].connected = qtrue;
Com_Printf( "Going from CS_FREE to CS_CONNECTED for %s num %i guid %s from: %s\n", nick, clientNum, newcl->pbguid, NET_AdrToConnectionString(from));
// save the addressgamestateMessageNum
// init the netchan queue
Netchan_Setup( NS_SERVER, &newcl->netchan, *from, qport,
newcl->unsentBuffer, sizeof(newcl->unsentBuffer),
newcl->fragmentBuffer, sizeof(newcl->fragmentBuffer));
/* for(index = 0; index < MAX_RELIABLE_COMMANDS; index++ ){
// if(index < MAX_RELIABLE_COMMANDS / 2){
cl->reliableCommands[index] = &cl->lowReliableCommands[index & (MAX_RELIABLE_COMMANDS - 1)];
// } else {
// cl->reliableCommands[index] = &svse.extclients[j].highReliableCommands[index & (MAX_RELIABLE_COMMANDS - 1)];
// }
}*/
newcl->state = CS_CONNECTED;
newcl->nextSnapshotTime = svs.time;
newcl->lastPacketTime = svs.time;
newcl->lastConnectTime = svs.time;
SV_UserinfoChanged(newcl);
// send the connect packet to the client
if(sv_modStats->boolean){
NET_OutOfBandPrint( NS_SERVER, from, "connectResponse %s", fs_game->string);
}else{
NET_OutOfBandPrint( NS_SERVER, from, "connectResponse");
}
// 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->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.
for (j=0, cl=svs.clients, count=0; j < sv_maxclients->integer; j++, cl++) {
if (cl->state >= CS_CONNECTED ) {
count++;
}
}
if ( count == 1 || count == sv_maxclients->integer ) {
SV_Heartbeat_f();
}
}
__optimize3 __regparm2 void SV_ReceiveStats(netadr_t *from, msg_t* msg){
short qport;
qport = MSG_ReadShort( msg );// & 0xffff;
client_t *cl;
int i;
byte curstatspacket;
byte var_02;
int buffersize;
// find which client the message is from
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 ) ) {
continue;
}
// it is possible to have multiple clients from a single IP
// address, so they are differentiated by the qport variable
if ( cl->netchan.qport != qport ) {
continue;
}
// the IP port can't be used to differentiate them, because
// some address translating routers periodically change UDP
// port assignments
if ( cl->netchan.remoteAddress.port != from->port ) {
Com_Printf( "SV_ReceiveStats: fixing up a translated port\n" );
cl->netchan.remoteAddress.port = from->port;
}
curstatspacket = MSG_ReadByte(msg);
if(curstatspacket > 6){
Com_Printf("Invalid stat packet %i of stats data\n", curstatspacket);
return;
}
Com_Printf("Received packet %i of stats data\n", curstatspacket);
if((curstatspacket+1)*1240 >= sizeof(cl->stats)){
buffersize = sizeof(cl->stats)-(curstatspacket*1240);
}else{
buffersize = 1240;
}
MSG_ReadData(msg, &cl->stats[1240*curstatspacket], buffersize);
cl->receivedstats |= (1 << curstatspacket);
var_02 = cl->receivedstats;
var_02 = ~var_02;
var_02 = var_02 & 127;
cl->lastPacketTime = svs.time;
NET_OutOfBandPrint( NS_SERVER, from, "statResponse %i", var_02 );
return;
}
Com_DPrintf("SV_ReceiveStats: Received statspacket from disconnected remote client: %s qport: %d\n", NET_AdrToString(from), qport);
}
/*
=================
SV_UserinfoChanged
Pull specific info from a newly changed userinfo string
into a more C friendly form.
=================
*/
void SV_UserinfoChanged( client_t *cl ) {
char *val;
char ip[128];
int i;
int len;
// name for C code
Q_strncpyz( cl->name, Info_ValueForKey (cl->userinfo, "name"), sizeof(cl->name) );
if(!Q_isprintstring(cl->name) || strstr(cl->name,"ID_") || Q_PrintStrlen(cl->name) < 3){
if(cl->state == CS_ACTIVE){
if(!Q_isprintstring(cl->name)) SV_SendServerCommand(cl, "c \"^5Playernames can not contain advanced ASCII-characters\"");
if(strlen(cl->name) < 3) SV_SendServerCommand(cl, "c \"^5Playernames can not be shorter than 3 characters\"");
}
if(cl->uid <= 0){
Com_sprintf(cl->name, 16, "ID_UNKNOWN_%i", cl - svs.clients);
cl->usernamechanged = UN_NEEDUID;
} else {
Com_sprintf(cl->name, 16, "ID_%i:%i", cl->uid / 100000000, cl->uid % 100000000);
cl->usernamechanged = UN_OK;
}
Info_SetValueForKey( cl->userinfo, "name", cl->name);
}else{
cl->usernamechanged = UN_VERIFYNAME;
}
Q_strncpyz(cl->shortname, cl->name, sizeof(cl->shortname));
// rate command
// if the client is on the same subnet as the server and we aren't running an
// internet public server, assume they don't need a rate choke
if ( Sys_IsLANAddress( &cl->netchan.remoteAddress )) {
cl->rate = 1048576; // lans should not rate limit
} else {
val = Info_ValueForKey (cl->userinfo, "rate");
if (strlen(val)) {
i = atoi(val);
cl->rate = i;
if (cl->rate < 2500) {
cl->rate = 2500;
} else if (cl->rate >= 25000) {
cl->rate = sv_maxRate->integer;
}
} else {
cl->rate = 2500;
}
}
// snaps command
val = Info_ValueForKey (cl->userinfo, "snaps");
if(strlen(val))
{
i = atoi(val);
if(i < 10)
i = 10;
else if(i > sv_fps->integer)
i = sv_fps->integer;
else if(i == 30)
i = sv_fps->integer;
cl->snapshotMsec = 1000 / i;
}
else
cl->snapshotMsec = 50;
val = Info_ValueForKey(cl->userinfo, "cl_voice");
cl->hasVoip = atoi(val);
// TTimo
// maintain the IP information
// the banning code relies on this being consistently present
if( NET_IsLocalAddress(cl->netchan.remoteAddress) )
Q_strncpyz(ip, "localhost", sizeof(ip));
else
Com_sprintf(ip, sizeof(ip), "%s", NET_AdrToConnectionString( &cl->netchan.remoteAddress ));
val = Info_ValueForKey( cl->userinfo, "ip" );
if( val[0] )
len = strlen( ip ) - strlen( val ) + strlen( cl->userinfo );
else
len = strlen( ip ) + 4 + strlen( cl->userinfo );
if( len >= MAX_INFO_STRING )
SV_DropClient( cl, "userinfo string length exceeded" );
else
Info_SetValueForKey( cl->userinfo, "ip", ip );
cl->wwwDownload = qfalse;
if(Info_ValueForKey(cl->userinfo, "cl_wwwDownload"))
cl->wwwDownload = qtrue;
}
/*
==================
SV_UpdateUserinfo_f
==================
*//*
static void SV_UpdateUserinfo_f( client_t *cl ) {
Q_strncpyz( cl->userinfo, Cmd_Argv(1), sizeof(cl->userinfo) );
SV_UserinfoChanged( cl );
// call prog code to allow overrides
VM_Call( gvm, GAME_CLIENT_USERINFO_CHANGED, cl - &svs.clients );
}*/
/*
=====================
SV_DropClient
Called when the player is totally leaving the server, either willingly
or unwillingly. This is NOT called if the entire server is quiting
or crashing -- SV_FinalMessage() will handle that
=====================
*/
__cdecl void SV_DropClient( client_t *drop, const char *reason ) {
int i;
int clientnum;
char var_01[2];
char dropmsg[1024];
const char *dropreason;
char clientName[16];
challenge_t *challenge;
if ( drop->state <= CS_ZOMBIE ) {
return; // already dropped
}
if(drop->demorecording)
{
SV_StopRecord(drop);
}
Q_strncpyz(clientName, drop->name, sizeof(clientName));
clientnum = drop - svs.clients;
if(drop->uid > 0 && strlen(drop->pbguid) == 32)
SV_EnterLeaveLog("^4Client %s %s ^4left this server from slot %d with uid %d guid %s", drop->name, NET_AdrToString(&drop->netchan.remoteAddress), clientnum, drop->uid, drop->pbguid);
else if(drop->uid > 0)
SV_EnterLeaveLog("^4Client %s %s ^4left this server from slot %d with uid %d", drop->name, NET_AdrToString(&drop->netchan.remoteAddress), clientnum, drop->uid);
else if(strlen(drop->pbguid) == 32)
SV_EnterLeaveLog("^4Client %s %s ^4left this server from slot %d with guid %s", drop->name, NET_AdrToString(&drop->netchan.remoteAddress), clientnum, drop->pbguid);
SV_FreeClient(drop);
G_DestroyAdsForPlayer(drop);
if ( !drop->gentity ) {
// see if we already (maybe still ??) have a challenge for this ip
challenge = &svse.challenges[0];
for ( i = 0 ; i < MAX_CHALLENGES ; i++, challenge++ ) {
if ( NET_CompareAdr( &drop->netchan.remoteAddress, &challenge->adr ) ) {
Com_Memset(challenge, 0, sizeof(challenge_t));
break;
}
}
}
clientnum = drop - svs.clients;
if(!reason)
reason = "";
if(!Q_stricmp(reason, "silent")){
//Just disconnect him and don't tell anyone about it
Com_Printf("Player %s^7, %i dropped: %s\n", clientName, clientnum, reason);
drop->state = CS_ZOMBIE; // become free in a few seconds
HL2Rcon_EventClientLeave(clientnum);
PHandler_Event(PLUGINS_ONPLAYERDC,(void*)drop); // Plugin event
return;
}
if(SEH_StringEd_GetString( reason )){
var_01[0] = 0x14;
var_01[1] = 0;
}else{
var_01[0] = 0;
}
if(!Q_stricmp(reason, "EXE_DISCONNECTED")){
dropreason = "EXE_LEFTGAME";
} else {
dropreason = reason;
}
// tell everyone why they got dropped
SV_SendServerCommand(NULL, "%c \"\x15%s^7 %s%s\"\0", 0x65, clientName, var_01, dropreason);
Com_Printf("Player %s^7, %i dropped: %s\n", clientName, clientnum, dropreason);
SV_SendServerCommand(NULL, "%c %d", 0x4b, clientnum);
// add the disconnect command
drop->reliableSequence = drop->reliableAcknowledge; //Reset unsentBuffer and Sequence to ommit the outstanding junk from beeing transmitted
drop->netchan.unsentFragments = qfalse;
// SV_SendServerCommand( drop, "%c \"%s\" PB\0", 0x77, dropreason);
Com_sprintf(dropmsg, sizeof(dropmsg), "%c \"%s\" PB\0", 0x77, dropreason);
SV_AddServerCommand_old( drop, 1, dropmsg);
if(drop->netchan.remoteAddress.type == NA_BOT){
drop->state = CS_FREE; // become free now
drop->netchan.remoteAddress.type = 0; //Reset the botflag
Com_DPrintf( "Going to CS_FREE for Bot %s\n", clientName );
}else{
drop->state = CS_ZOMBIE; // become free in a few seconds
Com_DPrintf( "Going to CS_ZOMBIE for %s\n", clientName );
}
HL2Rcon_EventClientLeave(clientnum);
PHandler_Event(PLUGINS_ONPLAYERDC,(void*)drop); // Plugin event
// if this was the last client on the server, send a heartbeat
// to the master so it is known the server is empty
// send a heartbeat now so the master will get up to date info
// if there is already a slot for this ip, reuse it
for ( i = 0 ; i < sv_maxclients->integer ; i++ ) {
if ( svs.clients[i].state >= CS_CONNECTED ) {
break;
}
}
if ( i == sv_maxclients->integer ) {
SV_Heartbeat_f();
}
}
/*
==================
SV_UserMove
The message usually contains all the movement commands
that were in the last three packets, so that the information
in dropped packets can be recovered.