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quakeforge/qw/source/sv_main.c
Jeff Teunissen 7c134a6f95 Fix up the watervis stuff. Whoops! :)
2002-04-25 14:34:15 +00:00

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/*
sv_main.c
(description)
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
static const char rcsid[] =
"$Id$";
#ifdef __sun
/* Sun's model_t in sys/model.h conflicts w/ Quake's model_t */
# define model_t sunmodel_t
#endif
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
# define INET6
# include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_WINSOCK_H
# include <winsock.h>
#endif
#include <stdarg.h>
#include <stdlib.h>
#include <setjmp.h>
#ifdef __sun
# undef model_t // allow qf to use it's model_t
#endif
#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/cvar.h"
#include "QF/dstring.h"
#include "QF/model.h"
#include "QF/msg.h"
#include "QF/plugin.h"
#include "QF/qargs.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "QF/ver_check.h"
#include "QF/vfs.h"
#include "QF/zone.h"
#include "bothdefs.h"
#include "buildnum.h"
#include "compat.h"
#include "client.h" //FIXME needed by cls below (for netchan)
#include "crudefile.h"
#include "game.h"
#include "net.h"
#include "pmove.h"
#include "server.h"
#include "sv_progs.h"
SERVER_PLUGIN_PROTOS
static plugin_list_t server_plugin_list[] = {
SERVER_PLUGIN_LIST
};
client_t *host_client; // current client
client_static_t cls; //FIXME needed by netchan :/
double sv_frametime;
double realtime; // without any filtering or bounding
int host_hunklevel;
netadr_t master_adr[MAX_MASTERS]; // address of group servers
quakeparms_t host_parms;
qboolean host_initialized; // true if into command execution
qboolean rcon_from_user;
// DoS protection
// FLOOD_PING, FLOOD_LOG, FLOOD_CONNECT, FLOOD_STATUS, FLOOD_RCON, FLOOD_BAN
// FIXME: these default values need to be tweaked after more testing
double netdosexpire[DOSFLOODCMDS] = { 1, 1, 2, 0.9, 1, 5 };
double netdosvalues[DOSFLOODCMDS] = { 12, 1, 3, 1, 1, 1 };
cvar_t *fs_globalcfg;
cvar_t *fs_usercfg;
cvar_t *sv_mem_size;
cvar_t *sv_console_plugin;
cvar_t *sv_allow_status;
cvar_t *sv_allow_log;
cvar_t *sv_allow_ping;
cvar_t *sv_extensions; // Use the extended protocols
cvar_t *sv_mintic; // bound the size of the
cvar_t *sv_maxtic; // physics time tic
cvar_t *sv_netdosprotect; // tone down DoS from quake servers
cvar_t *timeout; // seconds without any message
cvar_t *zombietime; // seconds to sink messages after
// disconnect
cvar_t *rcon_password; // password for remote server
cvar_t *admin_password; // password for admin commands
cvar_t *password; // password for entering the game
cvar_t *spectator_password; // password for entering as a
// spectator
cvar_t *allow_download;
cvar_t *allow_download_skins;
cvar_t *allow_download_models;
cvar_t *allow_download_sounds;
cvar_t *allow_download_maps;
cvar_t *sv_highchars;
cvar_t *sv_phs;
cvar_t *pausable;
cvar_t *sv_minqfversion; // Minimum QF version allowed to
// connect
cvar_t *sv_maxrate; // Maximum allowable rate (silently
// capped)
cvar_t *sv_timestamps;
cvar_t *sv_timefmt;
// game rules mirrored in svs.info
cvar_t *fraglimit;
cvar_t *timelimit;
cvar_t *teamplay;
cvar_t *samelevel;
cvar_t *maxclients;
cvar_t *maxspectators;
cvar_t *deathmatch; // 0, 1, or 2
cvar_t *spawn;
cvar_t *watervis;
cvar_t *hostname;
VFile *sv_logfile;
VFile *sv_fraglogfile;
cvar_t *pr_gc;
cvar_t *pr_gc_interval;
int pr_gc_count = 0;
void SV_AcceptClient (netadr_t adr, int userid, char *userinfo);
void Master_Shutdown (void);
const char *client_info_filters[] = { // Info keys needed by client
"name",
"topcolor",
"bottomcolor",
"rate",
"msg",
"skin",
"team",
"noaim",
"pmodel",
"emodel",
"spectator",
"*spectator",
"*ver",
NULL
};
qboolean
ServerPaused (void)
{
return sv.paused;
}
/*
SV_Shutdown
Quake calls this before calling Sys_Quit or Sys_Error
*/
void
SV_Shutdown (void)
{
Master_Shutdown ();
if (sv_logfile) {
Qclose (sv_logfile);
sv_logfile = NULL;
}
if (sv_fraglogfile) {
Qclose (sv_fraglogfile);
sv_logfile = NULL;
}
NET_Shutdown ();
Con_Shutdown ();
}
/*
SV_Error
Sends a datagram to all the clients informing them of the server crash,
then exits
*/
void
SV_Error (const char *error, va_list argptr)
{
dstring_t *string;
static qboolean inerror = false;
if (inerror)
return;
string = dstring_new ();
inerror = true;
dvsprintf (string, error, argptr);
dstring_insertstr (string, "server crashed: ", 0);
dstring_appendstr (string, "\n");
SV_FinalMessage (string->str);
if (con_module)
con_module->functions->console->pC_Print (error, argptr);
else
Sys_Print (stderr, error, argptr);
}
/*
SV_FinalMessage
Used by SV_Error and SV_Quit_f to send a final message to all connected
clients before the server goes down. The messages are sent immediately,
not just stuck on the outgoing message list, because the server is going
to totally exit after returning from this function.
*/
void
SV_FinalMessage (const char *message)
{
client_t *cl;
int i;
SZ_Clear (net_message->message);
MSG_WriteByte (net_message->message, svc_print);
MSG_WriteByte (net_message->message, PRINT_HIGH);
MSG_WriteString (net_message->message, message);
MSG_WriteByte (net_message->message, svc_disconnect);
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
if (cl->state >= cs_spawned)
Netchan_Transmit (&cl->netchan, net_message->message->cursize,
net_message->message->data);
}
/*
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.
*/
void
SV_DropClient (client_t *drop)
{
SV_SavePenaltyFilter (drop, ft_mute, drop->lockedtill);
SV_SavePenaltyFilter (drop, ft_cuff, drop->cuff_time);
// add the disconnect
MSG_WriteByte (&drop->netchan.message, svc_disconnect);
if (drop->state == cs_spawned) {
if (!drop->spectator) {
// call the prog function for removing a client
// this will set the body to a dead frame, among other things
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, drop->edict);
PR_ExecuteProgram (&sv_pr_state, sv_funcs.ClientDisconnect);
} else if (SpectatorDisconnect) {
// call the prog function for removing a client
// this will set the body to a dead frame, among other things
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, drop->edict);
PR_ExecuteProgram (&sv_pr_state, SpectatorDisconnect);
}
}
if (drop->spectator)
SV_Printf ("Spectator %s removed\n", drop->name);
else
SV_Printf ("Client %s removed\n", drop->name);
if (drop->download) {
Qclose (drop->download);
drop->download = NULL;
}
if (drop->upload) {
Qclose (drop->upload);
drop->upload = NULL;
}
*drop->uploadfn = 0;
drop->state = cs_zombie; // become free in a few seconds
drop->connection_started = realtime; // for zombie timeout
drop->old_frags = 0;
SVfloat (drop->edict, frags) = 0;
drop->name[0] = 0;
if (drop->userinfo)
Info_Destroy (drop->userinfo);
drop->userinfo = 0;
// send notification to all remaining clients
SV_FullClientUpdate (drop, &sv.reliable_datagram);
}
int
SV_CalcPing (client_t *cl)
{
float ping;
int count, i;
register client_frame_t *frame;
ping = 0;
count = 0;
for (frame = cl->frames, i = 0; i < UPDATE_BACKUP; i++, frame++) {
if (frame->ping_time > 0) {
ping += frame->ping_time;
count++;
}
}
if (!count)
return 9999;
ping /= count;
return ping * 1000;
}
static int
make_info_string_filter (const char *key)
{
return *key == '_' || !Info_FilterForKey (key, client_info_filters);
}
/*
SV_FullClientUpdate
Writes all update values to a sizebuf
*/
void
SV_FullClientUpdate (client_t *client, sizebuf_t *buf)
{
char *info;
int i;
i = client - svs.clients;
// SV_Printf("SV_FullClientUpdate: Updated frags for client %d\n", i);
MSG_WriteByte (buf, svc_updatefrags);
MSG_WriteByte (buf, i);
MSG_WriteShort (buf, client->old_frags);
MSG_WriteByte (buf, svc_updateping);
MSG_WriteByte (buf, i);
MSG_WriteShort (buf, SV_CalcPing (client));
MSG_WriteByte (buf, svc_updatepl);
MSG_WriteByte (buf, i);
MSG_WriteByte (buf, client->lossage);
MSG_WriteByte (buf, svc_updateentertime);
MSG_WriteByte (buf, i);
MSG_WriteFloat (buf, realtime - client->connection_started);
info = client->userinfo ? Info_MakeString (client->userinfo,
make_info_string_filter) : "";
MSG_WriteByte (buf, svc_updateuserinfo);
MSG_WriteByte (buf, i);
MSG_WriteLong (buf, client->userid);
MSG_WriteString (buf, info);
}
/*
SV_FullClientUpdateToClient
Writes all update values to a client's reliable stream
*/
void
SV_FullClientUpdateToClient (client_t *client, client_t *cl)
{
if (client->state < cs_connected)
return;
ClientReliableCheckBlock (cl, 24 + client->userinfo->cursize);
if (cl->num_backbuf) {
SV_FullClientUpdate (client, &cl->backbuf);
ClientReliable_FinishWrite (cl);
} else
SV_FullClientUpdate (client, &cl->netchan.message);
}
/* CONNECTIONLESS COMMANDS */
/*
CheckForFlood :: EXPERIMENTAL
Makes it more difficult to use Quake servers for DoS attacks against
other sites.
Bad sides: affects gamespy and spytools somewhat...
*/
int
CheckForFlood (flood_enum_t cmdtype)
{
double currenttime;
double oldestTime;
static double lastmessagetime = 0;
static flood_t floodstatus[DOSFLOODCMDS][DOSFLOODIP];
int oldest, i;
static qboolean firsttime = true;
if (!sv_netdosprotect->int_val)
return 0;
oldestTime = 0x7fffffff;
oldest = 0;
if (firsttime) {
memset (floodstatus, sizeof (flood_t) * DOSFLOODCMDS * DOSFLOODIP, 0);
firsttime = false;
}
currenttime = Sys_DoubleTime ();
for (i = 0; i < DOSFLOODIP; i++) {
if (NET_CompareBaseAdr (net_from, floodstatus[cmdtype][i].adr))
break;
if (floodstatus[cmdtype][i].issued < oldestTime) {
oldestTime = floodstatus[cmdtype][i].issued;
oldest = i;
}
}
if (i < DOSFLOODIP && floodstatus[cmdtype][i].issued) {
if ((floodstatus[cmdtype][i].issued + netdosexpire[cmdtype])
> currenttime) {
floodstatus[cmdtype][i].floodcount += 1;
if (floodstatus[cmdtype][i].floodcount > netdosvalues[cmdtype]) {
if ((lastmessagetime + 5) < currenttime)
SV_Printf ("Blocking type %d flood from (or to) %s\n",
cmdtype, NET_AdrToString (net_from));
floodstatus[cmdtype][i].floodcount = 0;
floodstatus[cmdtype][i].issued = currenttime;
floodstatus[cmdtype][i].cmdcount += 1;
lastmessagetime = currenttime;
return 1;
}
} else {
floodstatus[cmdtype][i].floodcount = 0;
}
}
if (i == DOSFLOODIP) {
i = oldest;
floodstatus[cmdtype][i].adr = net_from;
floodstatus[cmdtype][i].firstseen = currenttime;
floodstatus[cmdtype][i].cmdcount = 0;
floodstatus[cmdtype][i].floodcount = 0;
}
floodstatus[cmdtype][i].issued = currenttime;
floodstatus[cmdtype][i].cmdcount += 1;
return 0;
}
/*
SVC_Status
Responds with all the info that qplug or qspy can see
This message can be up to around 5k with worst case string lengths.
*/
void
SVC_Status (void)
{
client_t *cl;
int ping, bottom, top, i;
if (!sv_allow_status->int_val)
return;
if (CheckForFlood (FLOOD_STATUS))
return;
con_printf_no_log = 1;
Cmd_TokenizeString ("status", true);
SV_BeginRedirect (RD_PACKET);
SV_Printf ("%s\n", Info_MakeString (svs.info, 0));
for (i = 0; i < MAX_CLIENTS; i++) {
cl = &svs.clients[i];
if ((cl->state == cs_connected || cl->state == cs_spawned)
&& !cl->spectator) {
top = atoi (Info_ValueForKey (cl->userinfo, "topcolor"));
bottom = atoi (Info_ValueForKey (cl->userinfo, "bottomcolor"));
top = (top < 0) ? 0 : ((top > 13) ? 13 : top);
bottom = (bottom < 0) ? 0 : ((bottom > 13) ? 13 : bottom);
ping = SV_CalcPing (cl);
SV_Printf ("%i %i %i %i \"%s\" \"%s\" %i %i\n", cl->userid,
cl->old_frags,
(int) (realtime - cl->connection_started) / 60, ping,
cl->name, Info_ValueForKey (cl->userinfo, "skin"), top,
bottom);
}
}
SV_EndRedirect ();
con_printf_no_log = 0;
}
/* SV_CheckLog */
#define LOG_HIGHWATER 4096
#define LOG_FLUSH 10*60
void
SV_CheckLog (void)
{
sizebuf_t *sz;
sz = &svs.log[svs.logsequence & 1];
// bump sequence if allmost full, or ten minutes have passed and
// there is something still sitting there
if (sz->cursize > LOG_HIGHWATER
|| (realtime - svs.logtime > LOG_FLUSH && sz->cursize)) {
// swap buffers and bump sequence
svs.logtime = realtime;
svs.logsequence++;
sz = &svs.log[svs.logsequence & 1];
sz->cursize = 0;
SV_Printf ("beginning fraglog sequence %i\n", svs.logsequence);
}
}
/*
SVC_Log
Responds with all the logged frags for ranking programs.
If a sequence number is passed as a parameter and it is
the same as the current sequence, an A2A_NACK will be returned
instead of the data.
*/
void
SVC_Log (void)
{
char data[MAX_DATAGRAM + 64];
int seq;
if (!sv_allow_log->int_val)
return;
if (CheckForFlood (FLOOD_LOG))
return;
if (Cmd_Argc () == 2)
seq = atoi (Cmd_Argv (1));
else
seq = -1;
if (seq == svs.logsequence - 1 || !sv_fraglogfile) {
// they already have this data, or we aren't logging frags
data[0] = A2A_NACK;
NET_SendPacket (1, data, net_from);
return;
}
Con_DPrintf ("sending log %i to %s\n", svs.logsequence - 1,
NET_AdrToString (net_from));
// snprintf (data, sizeof (data), "stdlog %i\n", svs.logsequence-1);
// strncat (data, (char *)svs.log_buf[((svs.logsequence-1)&1)],
// sizeof(data) - strlen (data));
snprintf (data, sizeof (data), "stdlog %i\n%s",
svs.logsequence - 1,
(char *) svs.log_buf[((svs.logsequence - 1) & 1)]);
NET_SendPacket (strlen (data) + 1, data, net_from);
}
/*
SVC_Ping
Just responds with an acknowledgement
*/
void
SVC_Ping (void)
{
char data;
if (!sv_allow_ping->int_val)
return;
if (CheckForFlood (FLOOD_PING))
return;
data = A2A_ACK;
NET_SendPacket (1, &data, net_from);
}
/*
SVC_GetChallenge
Returns a challenge number that can be used
in a subsequent client_connect 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.
*/
void
SVC_GetChallenge (void)
{
int oldest, oldestTime, i;
char *extended = "";
oldest = 0;
oldestTime = 0x7fffffff;
// see if we already have a challenge for this ip
for (i = 0; i < MAX_CHALLENGES; i++) {
if (NET_CompareBaseAdr (net_from, svs.challenges[i].adr))
break;
if (svs.challenges[i].time < oldestTime) {
oldestTime = svs.challenges[i].time;
oldest = i;
}
}
if (i == MAX_CHALLENGES) {
// overwrite the oldest
svs.challenges[oldest].challenge = (rand () << 16) ^ rand ();
svs.challenges[oldest].adr = net_from;
svs.challenges[oldest].time = realtime;
i = oldest;
}
if (sv_extensions->int_val) {
extended = " QF";
}
// send it to the client
Netchan_OutOfBandPrint (net_from, "%c%i%s", S2C_CHALLENGE,
svs.challenges[i].challenge, extended);
}
/*
SVC_DirectConnect
A connection request that did not come from the master
*/
void
SVC_DirectConnect (void)
{
info_t *userinfo = 0;
const char *s;
client_t *cl, *newcl;
client_t temp;
edict_t *ent;
int challenge, clients, edictnum, qport, spectators, version, i;
static int userid;
netadr_t adr;
qboolean spectator;
if (CheckForFlood (FLOOD_CONNECT))
return;
version = atoi (Cmd_Argv (1));
if (version != PROTOCOL_VERSION) {
Netchan_OutOfBandPrint (net_from, "%c\nServer is version %s.\n",
A2C_PRINT, QW_VERSION);
SV_Printf ("* rejected connect from version %i\n", version);
return;
}
qport = atoi (Cmd_Argv (2));
challenge = atoi (Cmd_Argv (3));
if (strlen (Cmd_Argv (4)) < MAX_INFO_STRING)
userinfo = Info_ParseString (Cmd_Argv (4), 1023);
// Validate the userinfo string.
if (!userinfo) {
Netchan_OutOfBandPrint (net_from, "%c\nInvalid userinfo string.\n",
A2C_PRINT);
return;
}
// see if the challenge is valid
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 (net_from, "%c\nBad challenge.\n",
A2C_PRINT);
return;
}
}
if (i == MAX_CHALLENGES) {
Netchan_OutOfBandPrint (net_from, "%c\nNo challenge for address.\n",
A2C_PRINT);
return;
}
s = Info_ValueForKey (userinfo, "*qf_version");
if ((!s[0]) || sv_minqfversion->string[0]) { // kick old clients?
if (ver_compare (s, sv_minqfversion->string) < 0) {
SV_Printf ("%s: Version %s is less than minimum version %s.\n",
NET_AdrToString (net_from), s,
sv_minqfversion->string);
Netchan_OutOfBandPrint (net_from, "%c\nserver requires QuakeForge "
"v%s or greater. Get it from "
"http://www.quakeforge.net/\n", A2C_PRINT,
sv_minqfversion->string);
return;
}
}
// check for password or spectator_password
s = Info_ValueForKey (userinfo, "spectator");
if (s[0] && strcmp (s, "0")) {
if (spectator_password->string[0] &&
!strcaseequal (spectator_password->string, "none") &&
!strequal (spectator_password->string, s)) { // failed
SV_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_RemoveKey (userinfo, "spectator"); // remove passwd
Info_SetValueForStarKey (userinfo, "*spectator", "1",
!sv_highchars->int_val);
spectator = true;
} else {
s = Info_ValueForKey (userinfo, "password");
if (password->string[0]
&& !strcaseequal (password->string, "none")
&& !strequal (password->string, s)) {
SV_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;
// works properly
if (!sv_highchars->int_val) {
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
newcl->userinfo = userinfo;
// if there is allready 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_CompareBaseAdr (adr, cl->netchan.remote_address)
&& (cl->netchan.qport == qport
|| adr.port == cl->netchan.remote_address.port)) {
if (cl->state == cs_connected) {
SV_Printf ("%s:dup connect\n", NET_AdrToString (adr));
userid--;
return;
}
SV_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->int_val > MAX_CLIENTS)
Cvar_SetValue (maxclients, MAX_CLIENTS);
if (maxspectators->int_val > MAX_CLIENTS)
Cvar_SetValue (maxspectators, MAX_CLIENTS);
if (maxspectators->int_val + maxclients->int_val > MAX_CLIENTS)
Cvar_SetValue (maxspectators, MAX_CLIENTS - maxclients->int_val);
if ((spectator && spectators >= maxspectators->int_val)
|| (!spectator && clients >= maxclients->int_val)) {
SV_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) {
SV_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, qport);
newcl->state = cs_connected;
newcl->prespawned = false;
newcl->spawned = false;
svs.num_clients++;
newcl->datagram.allowoverflow = true;
newcl->datagram.data = newcl->datagram_buf;
newcl->datagram.maxsize = sizeof (newcl->datagram_buf);
// spectator mode can ONLY be set at join time
newcl->spectator = spectator;
ent = EDICT_NUM (&sv_pr_state, edictnum);
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 = SV_RestorePenaltyFilter(newcl, ft_mute);
// call the progs to get default spawn parms for the new client
PR_ExecuteProgram (&sv_pr_state, sv_funcs.SetNewParms);
for (i = 0; i < NUM_SPAWN_PARMS; i++)
newcl->spawn_parms[i] = sv_globals.parms[i];
if (newcl->spectator)
SV_Printf ("Spectator %s (%s) connected\n", newcl->name,
NET_AdrToString (adr));
else
SV_Printf ("Client %s (%s) connected\n", newcl->name,
NET_AdrToString (adr));
newcl->sendinfo = true;
// QuakeForge stuff.
newcl->msecs = 0;
newcl->msec_cheating = 0;
newcl->last_check = -1;
newcl->cuff_time = SV_RestorePenaltyFilter(newcl, ft_cuff);
}
int
Rcon_Validate (cvar_t *pass)
{
if (!strlen (pass->string))
return 0;
if (strcmp (Cmd_Argv (1), pass->string))
return 0;
return 1;
}
char *
Name_of_sender (void)
{
client_t *cl;
int i;
for (i=0, cl=svs.clients ; i<MAX_CLIENTS ; i++,cl++) {
if (cl->state == cs_free)
continue;
if (!NET_CompareBaseAdr(net_from, cl->netchan.remote_address))
continue;
if (cl->netchan.remote_address.port != net_from.port)
continue;
return cl->name;
}
return NULL;
}
/*
SVC_RemoteCommand
A client issued an rcon command.
Shift down the remaining args
Redirect all printfs
*/
void
SVC_RemoteCommand (void)
{
const char *command;
char *name;
qboolean admin_cmd = false;
qboolean do_cmd = false;
if (CheckForFlood (FLOOD_RCON))
return;
if (Rcon_Validate (rcon_password)) {
do_cmd = true;
} else if (Rcon_Validate (admin_password)) {
admin_cmd = true;
if (strcmp(Cmd_Argv(2), "say") == 0
|| strcmp(Cmd_Argv(2), "kick") == 0
|| strcmp(Cmd_Argv(2), "ban") == 0
|| strcmp(Cmd_Argv(2), "mute") == 0
|| strcmp(Cmd_Argv(2), "cuff") == 0
|| strcmp(Cmd_Argv(2), "exec") == 0
|| strcmp(Cmd_Argv(2), "addip") == 0
|| strcmp(Cmd_Argv(2), "listip") == 0
|| strcmp(Cmd_Argv(2), "writeip") == 0
|| strcmp(Cmd_Argv(2), "removeip") == 0)
do_cmd = true;
}
if ((name = Name_of_sender())) { // log issuer
if (do_cmd && admin_cmd) {
SV_BroadcastPrintf (PRINT_HIGH, "Admin %s issued %s command:\n",
name, Cmd_Argv(2));
} else if (admin_cmd) {
SV_Printf ("Admin %s issued %s command:\n", name, Cmd_Argv(2));
} else {
SV_Printf("User %s %s rcon command:\n", name,
do_cmd? "issued":"attempted");
}
}
if (do_cmd) {
command = Cmd_Args (2);
SV_Printf ("Rcon from %s:\n\trcon (hidden) %s\n",
NET_AdrToString (net_from), command);
SV_BeginRedirect (RD_PACKET);
if (name)
rcon_from_user = true;
Cmd_ExecuteString (command, src_command);
rcon_from_user = false;
} else {
SV_Printf ("Bad rcon from %s:\n%s\n", NET_AdrToString (net_from),
net_message->message->data + 4);
SV_BeginRedirect (RD_PACKET);
if (admin_cmd) {
SV_Printf("Command not valid with admin password.\n");
} else {
SV_Printf ("Bad rcon_password.\n");
}
}
SV_EndRedirect ();
}
/*
SV_ConnectionlessPacket
A connectionless packet has four leading 0xff
characters to distinguish it from a game channel.
Clients that are in the game can still send
connectionless packets.
*/
void
SV_ConnectionlessPacket (void)
{
const char *c, *s;
MSG_BeginReading (net_message);
MSG_ReadLong (net_message); // skip the -1 marker
s = MSG_ReadString (net_message);
Cmd_TokenizeString (s, true);
c = Cmd_Argv (0);
if (!strcmp (c, "ping")
|| (c[0] == A2A_PING && (c[1] == 0 || c[1] == '\n'))) {
SVC_Ping ();
return;
}
if (c[0] == A2A_ACK && (c[1] == 0 || c[1] == '\n')) {
SV_Printf ("A2A_ACK from %s\n", NET_AdrToString (net_from));
return;
} else if (!strcmp (c, "status")) {
SVC_Status ();
return;
} else if (!strcmp (c, "log")) {
SVC_Log ();
return;
} else if (!strcmp (c, "connect")) {
SVC_DirectConnect ();
return;
} else if (!strcmp (c, "getchallenge")) {
SVC_GetChallenge ();
return;
} else if (!strcmp (c, "rcon"))
SVC_RemoteCommand ();
else
SV_Printf ("bad connectionless packet from %s:\n%s\n",
NET_AdrToString (net_from), s);
}
/*
PACKET FILTERING
You can add or remove addresses from the filter list with:
addip <ip>
removeip <ip>
The ip address is specified in dot format, and any unspecified digits
will match any value, so you can specify an entire class C network with
"addip 192.246.40".
Removeip will only remove an address specified exactly the same way.
You cannot addip a subnet, then removeip a single host.
listip
Prints the current list of filters.
writeip
Dumps "addip <ip>" commands to listip.cfg so it can be execed at a
later date. The filter lists are not saved and restored by default,
because I beleive it would cause too much confusion.
filterban <0 or 1>
If 1 (the default), then ip addresses matching the current list will be
prohibited from entering the game. This is the default setting.
If 0, then only addresses matching the list will be allowed. This lets
you easily set up a private game, or a game that only allows players
from your local network.
*/
typedef struct {
int mask;
#ifdef HAVE_IPV6
byte ip[16];
#else
byte ip[4];
#endif
double time;
filtertype_t type;
} ipfilter_t;
#define MAX_IPFILTERS 1024
cvar_t *filterban;
cvar_t *sv_filter_automask;
int numipfilters;
ipfilter_t ipfilters[MAX_IPFILTERS];
unsigned int ipmasks[33]; // network byte order
void
SV_GenerateIPMasks (void)
{
int i;
unsigned long int j = 0xFFFFFFFF;
for (i = 32; i >= 0; i--) {
ipmasks[i] = htonl (j);
j = j << 1;
}
}
// Note: this function is non-reentrant and not threadsafe
const char *
SV_PrintIP (byte *ip)
{
#ifdef HAVE_IPV6
static char buf[INET6_ADDRSTRLEN];
if (!inet_ntop (AF_INET6, ip, buf, INET6_ADDRSTRLEN))
#else
# ifdef WIN32
static char buf[16];
strcpy (buf, inet_ntoa (*(struct in_addr*)ip));
if (0)
# else
static char buf[INET_ADDRSTRLEN];
if (!inet_ntop (AF_INET, ip, buf, INET_ADDRSTRLEN))
# endif
#endif
Sys_Error ("SV_CleanIPList: inet_ntop_failed. wtf?\n");
return buf;
}
static inline void
SV_MaskIPTrim (byte *ip, int mask)
{
int i;
#ifdef HAVE_IPV6
int intcount = 4;
#else
int intcount = 1;
#endif
for (i = 0; i < intcount; i++) {
((unsigned int *)ip)[i] &= ipmasks[mask > 32 ? 32 : mask];
if ((mask -= 32) < 0)
mask = 0;
}
}
// assumes b has already been masked
static inline qboolean
SV_MaskIPCompare (byte *a, byte *b, int mask)
{
int i;
#ifdef HAVE_IPV6
int intcount = 4;
#else
int intcount = 1;
#endif
for (i = 0; i < intcount; i++) {
if ((((unsigned int *)a)[i] & ipmasks[mask > 32 ? 32 : mask]) != ((unsigned int *)b)[i])
return false;
if ((mask -= 32) < 0)
mask = 0;
}
return true;
}
static inline qboolean
SV_IPCompare (byte *a, byte *b)
{
int i;
#ifdef HAVE_IPV6
int intcount = 4;
#else
int intcount = 1;
#endif
for (i = 0; i < intcount; i++)
if (((unsigned int *)a)[i] != ((unsigned int *)b)[i])
return false;
return true;
}
static inline void
SV_IPCopy (byte *dest, byte *src)
{
int i;
#ifdef HAVE_IPV6
int intcount = 4;
#else
int intcount = 1;
#endif
for (i = 0; i < intcount; i++)
((unsigned int *)dest)[i] = ((unsigned int *)src)[i];
}
qboolean
SV_StringToFilter (const char *address, ipfilter_t *f)
{
#ifdef HAVE_IPV6
byte b[16] = {};
#else
byte b[4] = {};
#endif
int mask = 0;
int i;
char *s;
char *slash;
char *c;
s = strdup (address);
if (!s)
Sys_Error ("SV_StringToFilter: memory allocation failure\n");
// Parse out the mask (the /8 part)
if ((slash = strchr (s, '/'))) {
char *endptr;
*slash = '\0';
slash++;
if (*slash < '0' || *slash > '9' || strchr (slash, '/'))
goto bad_address;
mask = strtol (slash, &endptr, 10);
if (!*slash || *endptr)
goto bad_address;
} else
mask = -1;
// parse the ip for ipv6
#ifdef HAVE_IPV6
if (inet_pton (AF_INET6, s, b) != 1) {
b[10] = 0xFF; // Prefix bytes for hosts that don't support ipv6
b[11] = 0xFF; // (see RFC 2373, section 2.5.4)
i = 12;
#else
i = 0;
#endif
c = s;
// parse for ipv4, as dotted quad, only we have implicit trailing segments
do {
int j;
if (*c == '.')
c++;
j = strtol (c, &c, 10);
if (j < 0 || j > 255 || i >= sizeof (b))
goto bad_address;
b[i++] = j;
} while (*c == '.');
if (*c)
goto bad_address;
// change trailing 0 segments to be a mask, eg 1.2.0.0 gives a /16 mask
if (mask == -1) {
if (sv_filter_automask->int_val) {
mask = sizeof (b) * 8;
i = sizeof (b) - 1;
while (i >= 0 && !b[i]) {
mask -= 8;
i--;
}
} else
mask = 0;
}
#ifdef HAVE_IPV6
}
#endif
#ifdef HAVE_IPV6
if (mask > 128)
#else
if (mask > 32)
#endif
goto bad_address;
// incase they did 1.2.3.4/16, change it to 1.2.0.0 for easier comparison
SV_MaskIPTrim (b, mask);
// yada :)
f->mask = mask;
SV_IPCopy (f->ip, b);
free (s);
return true;
bad_address:
SV_Printf ("Bad filter address: %s\n", address);
free (s);
return false;
}
void
SV_RemoveIPFilter (int i)
{
for (; i + 1 < numipfilters; i++)
ipfilters[i] = ipfilters[i + 1];
numipfilters--;
}
void
SV_CleanIPList (void)
{
int i;
char *type;
for (i = 0; i < numipfilters;) {
if (ipfilters[i].time && (ipfilters[i].time <= realtime)) {
switch (ipfilters[i].type) {
case ft_ban: type = "Ban"; break;
case ft_mute: type = "Mute"; break;
case ft_cuff: type = "Cuff"; break;
default: Sys_Error ("SV_CleanIPList: invalid filter type");
}
SV_Printf ("SV_CleanIPList: %s for %s/%d removed\n", type,
SV_PrintIP (ipfilters[i].ip), ipfilters[i].mask);
SV_RemoveIPFilter (i);
} else
i++;
}
}
void
SV_AddIP_f (void)
{
int i;
double bantime;
filtertype_t type;
if (Cmd_Argc () < 2 || Cmd_Argc () > 4) {
SV_Printf ("Usage: addip <ip>/<mask> [<time> [<ban/mute/cuff>] ]\n");
return;
}
if (Cmd_Argc () >= 3)
bantime = atof (Cmd_Argv (2)) * 60;
else
bantime = 0.0;
if (Cmd_Argc () >= 4) {
if (strequal ("ban", Cmd_Argv (3)))
type = ft_ban;
else if (strequal ("mute", Cmd_Argv (3)))
type = ft_mute;
else if (strequal ("cuff", Cmd_Argv (3)))
type = ft_cuff;
else {
SV_Printf ("Unknown filter type '%s'\n", Cmd_Argv (3));
return;
}
} else
type = ft_ban;
if (numipfilters == MAX_IPFILTERS) {
SV_Printf ("IP filter list is full\n");
return;
}
if (SV_StringToFilter (Cmd_Argv (1), &ipfilters[numipfilters])) {
ipfilters[numipfilters].time = bantime ? realtime + bantime : 0.0;
ipfilters[numipfilters].type = type;
// FIXME: this should boot any matching clients
for (i = 0; i < MAX_CLIENTS; i++) {
client_t *cl = &svs.clients[i];
char text[1024];
char *typestr;
char timestr[1024];
if (cl->state == cs_free)
continue;
if (SV_MaskIPCompare (cl->netchan.remote_address.ip,
ipfilters[numipfilters].ip,
ipfilters[numipfilters].mask)) {
switch (type) {
case ft_ban:
typestr = "banned";
SV_DropClient (cl);
break;
case ft_mute:
typestr = "muted";
cl->lockedtill = bantime;
break;
case ft_cuff:
typestr = "cuffed";
cl->cuff_time = bantime;
break;
default:
Sys_Error ("SV_AddIP_f: unknown filter type %d", type);
}
if (bantime)
snprintf (timestr, sizeof (timestr), "for %.1f minutes",
bantime / 60);
else
strncpy (timestr, "permanently", sizeof (timestr));
snprintf (text, sizeof (text), "You are %s %s\n%s",
typestr, timestr, type == ft_ban ? "" :
"\nReconnecting won't help...");
ClientReliableWrite_Begin (cl, svc_centerprint, strlen (text) + 2);
ClientReliableWrite_String (cl, text);
// FIXME: print on the console too
}
}
SV_Printf ("Added IP Filter for %s/%u\n",
SV_PrintIP (ipfilters[numipfilters].ip),
ipfilters[numipfilters].mask);
numipfilters++;
}
}
void
SV_RemoveIP_f (void)
{
int i;
ipfilter_t f;
if (!SV_StringToFilter (Cmd_Argv (1), &f))
return;
for (i = 0; i < numipfilters; i++)
if (ipfilters[i].mask == f.mask && SV_IPCompare (ipfilters[i].ip, f.ip)) {
SV_RemoveIPFilter (i);
SV_Printf ("Removed IP Filter for %s/%u.\n",
SV_PrintIP (f.ip), f.mask);
return;
}
SV_Printf ("Didn't find %s/%u.\n", SV_PrintIP (f.ip), f.mask);
}
void
SV_ListIP_f (void)
{
int i;
char *type;
char timestr[30];
SV_Printf ("IP Filter list:\n");
for (i = 0; i < numipfilters; i++) {
switch (ipfilters[i].type) {
case ft_ban: type = "Ban:"; break;
case ft_mute: type = "Mute:"; break;
case ft_cuff: type = "Cuff:"; break;
default: Sys_Error ("SV_ListIP_f: invalid filter type");
}
if (ipfilters[i].time)
snprintf (timestr, sizeof (timestr), "%ds",
(int) (ipfilters[i].time ? ipfilters[i].time - realtime : 0));
else
strcpy (timestr, "Permanent");
SV_Printf ("%-5s %-10s %s/%u\n", type, timestr,
SV_PrintIP (ipfilters[i].ip), ipfilters[i].mask);
}
SV_Printf ("%d IP Filter%s\n", numipfilters,
numipfilters == 1 ? "" : "s");
}
void
SV_WriteIP_f (void)
{
char name[MAX_OSPATH];
int i;
VFile *f;
char *type;
snprintf (name, sizeof (name), "%s/listip.cfg", com_gamedir);
SV_Printf ("Writing IP Filters to %s.\n", name);
f = Qopen (name, "wb");
if (!f) {
SV_Printf ("Couldn't open %s\n", name);
return;
}
for (i = 0; i < numipfilters; i++) {
switch (ipfilters[i].type) {
case ft_ban: type = "ban"; break;
case ft_mute: type = "mute"; break;
case ft_cuff: type = "cuff"; break;
default: Sys_Error ("SV_WriteIP_f: invalid filter type");
}
Qprintf (f, "addip %s/%u 0 %s\n", SV_PrintIP (ipfilters[i].ip),
ipfilters[i].mask, type);
}
Qclose (f);
}
void
SV_netDoSexpire_f (void)
{
int arg1, i;
if (Cmd_Argc () == 1) {
SV_Printf ("Current DoS prot. expire settings: ");
for (i = 0; i < DOSFLOODCMDS; i++)
SV_Printf ("%f ", netdosexpire[i]);
SV_Printf ("\n");
if (!sv_netdosprotect->int_val)
SV_Printf ("(disabled)\n");
return;
}
if (Cmd_Argc () != DOSFLOODCMDS + 1) {
SV_Printf ("Usage: netdosexpire <ping> <log> <connect> <status> "
"<rcon> <ban>\n");
return;
}
for (i = 0; i < DOSFLOODCMDS; i++) {
arg1 = atoi (Cmd_Argv (i + 1));
if (arg1 > 0)
netdosexpire[i] = arg1;
}
return;
}
void
SV_netDoSvalues_f (void)
{
int arg1, i;
if (Cmd_Argc () == 1) {
SV_Printf ("Current DoS prot. value settings: ");
for (i = 0; i < DOSFLOODCMDS; i++)
SV_Printf ("%f ", netdosvalues[i]);
SV_Printf ("\n");
if (!sv_netdosprotect->int_val)
SV_Printf ("(disabled)\n");
return;
}
if (Cmd_Argc () != DOSFLOODCMDS + 1) {
SV_Printf ("Usage: netdosvalues <ping> <log> <connect> <status> "
"<rcon> <ban>\n");
return;
}
for (i = 0; i < DOSFLOODCMDS; i++) {
arg1 = atoi (Cmd_Argv (i + 1));
if (arg1 > 0)
netdosvalues[i] = arg1;
}
return;
}
void
SV_SendBan (double till)
{
char data[128];
// char *data2;
if (CheckForFlood (FLOOD_BAN))
return;
data[0] = data[1] = data[2] = data[3] = 0xff;
data[4] = A2C_PRINT;
if (till) {
snprintf (data + 5, sizeof (data) - 5,
"\nbanned for %.1f more minutes.\n", (till - realtime)/60.0);
} else {
snprintf (data + 5, sizeof (data) - 5, "\nbanned permanently.\n");
}
NET_SendPacket (strlen (data), data, net_from);
/* data[4] = A2C_CLIENT_COMMAND;
snprintf (data + 5, sizeof (data) - 5, "disconnect\n");
data2 = data + strlen (data) + 1;
snprintf (data2, sizeof (data) - (data2 - data), "12345");
NET_SendPacket (strlen (data) + strlen (data2) + 2, data, net_from);*/
// FIXME: this should send a disconnect to the client!
}
qboolean
SV_FilterIP (byte *ip, double *until)
{
int i;
*until = 0;
for (i = 0; i < numipfilters; i++) {
if (ipfilters[i].type != ft_ban)
continue;
if (SV_MaskIPCompare (ip, ipfilters[i].ip, ipfilters[i].mask)) {
if (!ipfilters[i].time) {
// normal ban
return filterban->int_val;
} else if (ipfilters[i].time > realtime) {
*until = ipfilters[i].time;
return true; // banned no matter what
} else {
// time expired, set free
SV_RemoveIPFilter (i);
i--; // counter the increment, so we don't skip any
}
}
}
return !filterban->int_val;
}
void
SV_SavePenaltyFilter (client_t *cl, filtertype_t type, double pentime)
{
int i;
byte *b;
if (pentime < realtime) // no point
return;
b = cl->netchan.remote_address.ip;
for (i = 0; i < numipfilters; i++)
if (ipfilters[i].mask == 32 && SV_IPCompare (ipfilters[i].ip, b)
&& ipfilters[i].type == type) {
SV_Printf ("Penalty for user %d already exists\n", cl->userid);
return;
}
if (numipfilters == MAX_IPFILTERS) {
SV_Printf ("IP filter list is full\n");
return;
}
SV_Printf ("Penalty saved for user %d\n", cl->userid);
ipfilters[numipfilters].mask = 32;
SV_IPCopy (ipfilters[numipfilters].ip, b);
ipfilters[numipfilters].time = pentime;
ipfilters[numipfilters].type = type;
numipfilters++;
return;
}
double
SV_RestorePenaltyFilter (client_t *cl, filtertype_t type)
{
int i;
byte *ip;
ip = cl->netchan.remote_address.ip;
// search for existing penalty filter of same type
for (i = 0; i < numipfilters; i++) {
if (type == ipfilters[i].type && SV_IPCompare (ip, ipfilters[i].ip)) {
SV_Printf ("Penalty restored for user %d\n", cl->userid);
return ipfilters[i].time;
}
}
return 0.0;
}
void
SV_ReadPackets (void)
{
//NOTE star volatile, not volatile star
client_t *volatile cl; // * volatile for longjmp
int qport, i;
qboolean good;
double until;
good = false;
while (NET_GetPacket ()) {
if (SV_FilterIP (net_from.ip, &until)) {
SV_SendBan (until); // tell them we aren't listening...
continue;
}
// check for connectionless packet (0xffffffff) first
if (*(int *) net_message->message->data == -1) {
SV_ConnectionlessPacket ();
continue;
}
if (net_message->message->cursize < 11) {
SV_Printf ("%s: Runt packet\n", NET_AdrToString (net_from));
continue;
}
// read the qport out of the message so we can fix up
// stupid address translating routers
MSG_BeginReading (net_message);
MSG_ReadLong (net_message); // sequence number
MSG_ReadLong (net_message); // sequence number
qport = MSG_ReadShort (net_message) & 0xffff;
// check for packets from connected clients
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++) {
if (cl->state == cs_free)
continue;
if (!NET_CompareBaseAdr (net_from, cl->netchan.remote_address))
continue;
if (cl->netchan.qport != qport)
continue;
if (cl->netchan.remote_address.port != net_from.port) {
Con_DPrintf ("SV_ReadPackets: fixing up a translated port\n");
cl->netchan.remote_address.port = net_from.port;
}
if (Netchan_Process (&cl->netchan)) {
// this is a valid, sequenced packet, so process it
svs.stats.packets++;
good = true;
cl->send_message = true; // reply at end of frame
if (cl->state != cs_zombie) {
SV_ExecuteClientMessage (cl);
}
}
break;
}
if (i != MAX_CLIENTS)
continue;
// packet is not from a known client
// SV_Printf ("%s:sequenced packet without connection\n",
// NET_AdrToString(net_from));
}
}
/*
SV_CheckTimeouts
If a packet has not been received from a client in timeout.value
seconds, drop the conneciton.
When a client is normally dropped, the client_t goes into a zombie
state for a few seconds to make sure any final reliable message gets
resent if necessary
*/
void
SV_CheckTimeouts (void)
{
client_t *cl;
float droptime;
int nclients, i;
droptime = realtime - timeout->value;
nclients = 0;
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++) {
if (cl->state == cs_connected || cl->state == cs_spawned) {
if (!cl->spectator)
nclients++;
if (cl->netchan.last_received < droptime) {
SV_BroadcastPrintf (PRINT_HIGH, "%s timed out\n", cl->name);
SV_DropClient (cl);
cl->state = cs_free; // don't bother with zombie state
svs.num_clients--;
}
}
if (cl->state == cs_zombie &&
realtime - cl->connection_started > zombietime->value) {
cl->state = cs_free; // can now be reused
svs.num_clients--;
}
}
if (sv.paused && !nclients) {
// nobody left, unpause the server
SV_TogglePause ("Pause released since no players are left.\n");
}
}
/*
SV_GetConsoleCommands
Add them exactly as if they had been typed at the console
*/
void
SV_GetConsoleCommands (void)
{
Con_ProcessInput ();
}
/*
SV_CheckVars
*/
void
SV_CheckVars (void)
{
static char const *pw, *spw;
int v;
if (password->string == pw && spectator_password->string == spw)
return;
pw = password->string;
spw = spectator_password->string;
v = 0;
if (pw && pw[0] && strcmp (pw, "none"))
v |= 1;
if (spw && spw[0] && strcmp (spw, "none"))
v |= 2;
SV_Printf ("Updated needpass.\n");
if (!v)
Info_SetValueForKey (svs.info, "needpass", "",
!sv_highchars->int_val);
else
Info_SetValueForKey (svs.info, "needpass", va ("%i", v),
!sv_highchars->int_val);
}
/*
SV_GarbageCollect
Run string GC on progs every pr_gc_interval frames
*/
void
SV_GarbageCollect ()
{
if (pr_gc->int_val == 1
|| (pr_gc->int_val == 2 && sv_pr_state.progs->version == PROG_VERSION)) {
pr_gc_count++;
if (pr_gc_count >= pr_gc_interval->int_val) {
pr_gc_count = 0;
PR_GarbageCollect (&sv_pr_state);
}
} else {
// Make sure the count gets reset if the gc is disabled. I
// could use a callback, but I'm lazy
pr_gc_count = 0;
}
}
void
SV_Frame (float time)
{
static double start, end;
start = Sys_DoubleTime ();
svs.stats.idle += start - end;
// keep the random time dependent
rand ();
// decide the simulation time
if (!sv.paused) {
realtime += time;
sv.time += time;
}
// check timeouts
SV_CheckTimeouts ();
// toggle the log buffer if full
SV_CheckLog ();
// clean out expired bans/cuffs/mutes
SV_CleanIPList ();
// move autonomous things around if enough time has passed
if (!sv.paused) {
static double old_time;
// don't bother running a frame if sys_ticrate seconds haven't passed
sv_frametime = realtime - old_time;
if (sv_frametime >= sv_mintic->value) {
if (sv_frametime > sv_maxtic->value)
sv_frametime = sv_maxtic->value;
old_time = realtime;
*sv_globals.frametime = sv_frametime;
SV_Physics ();
}
}
// get packets
SV_ReadPackets ();
// check for commands typed to the host
SV_GetConsoleCommands ();
// process console commands
Cbuf_Execute ();
SV_CheckVars ();
// send messages back to the clients that had packets read this frame
SV_SendClientMessages ();
// send a heartbeat to the master if needed
Master_Heartbeat ();
SV_GarbageCollect ();
// collect timing statistics
end = Sys_DoubleTime ();
svs.stats.active += end - start;
if (++svs.stats.count == STATFRAMES) {
svs.stats.latched_active = svs.stats.active;
svs.stats.latched_idle = svs.stats.idle;
svs.stats.latched_packets = svs.stats.packets;
svs.stats.active = 0;
svs.stats.idle = 0;
svs.stats.packets = 0;
svs.stats.count = 0;
}
Con_ProcessInput (); //XXX evil hack to get the cursor in the right place
}
void
SV_InitLocal (void)
{
int i;
SV_UserInit ();
rcon_password = Cvar_Get ("rcon_password", "", CVAR_NONE, NULL, "Set the "
"password for rcon 'root' commands");
admin_password = Cvar_Get ("admin_password", "", CVAR_NONE, NULL, "Set "
"the password for rcon admin commands");
password = Cvar_Get ("password", "", CVAR_NONE, NULL, "Set the server "
"password for players");
spectator_password = Cvar_Get ("spectator_password", "", CVAR_NONE, NULL,
"Set the spectator password");
sv_mintic = Cvar_Get ("sv_mintic", "0.03", CVAR_NONE, NULL, "The minimum "
"amount of time the server will wait before sending "
"packets to a client. Set to .5 to make modem users "
"happy");
sv_maxtic = Cvar_Get ("sv_maxtic", "0.1", CVAR_NONE, NULL, "The maximum "
"amount of time in seconds before a client a "
"receives an update from the server");
fraglimit = Cvar_Get ("fraglimit", "0", CVAR_SERVERINFO, Cvar_Info,
"Amount of frags a player must attain in order to "
"exit the level");
timelimit = Cvar_Get ("timelimit", "0", CVAR_SERVERINFO, Cvar_Info,
"Sets the amount of time in minutes that is needed "
"before advancing to the next level");
teamplay = Cvar_Get ("teamplay", "0", CVAR_SERVERINFO, Cvar_Info,
"Determines teamplay rules. 0 off, 1 You cannot hurt "
"yourself nor your teammates, 2 You can hurt "
"yourself, your teammates, and you will lose one "
"frag for killing a teammate, 3 You can hurt "
"yourself but you cannot hurt your teammates");
samelevel = Cvar_Get ("samelevel", "0", CVAR_SERVERINFO, Cvar_Info,
"Determines the rules for level changing and "
"exiting. 0 Allows advancing to the next level,"
"1 The same level will be played until someone "
"exits, 2 The same level will be played and the "
"exit will kill anybody that tries to exit, 3 The "
"same level will be played and the exit will kill "
"anybody that tries to exit, except on the Start "
"map.");
maxclients = Cvar_Get ("maxclients", "8", CVAR_SERVERINFO, Cvar_Info,
"Sets how many clients can connect to your "
"server, this includes spectators and players");
maxspectators = Cvar_Get ("maxspectators", "8", CVAR_SERVERINFO, Cvar_Info,
"Sets how many spectators can connect to your "
"server. The maxclients value takes precedence "
"over this value so this value should always be "
"equal-to or less-then the maxclients value");
hostname = Cvar_Get ("hostname", "unnamed", CVAR_SERVERINFO, Cvar_Info,
"Report or sets the server name");
deathmatch = Cvar_Get ("deathmatch", "1", CVAR_SERVERINFO, Cvar_Info,
"Sets the rules for weapon and item respawning. "
"1 Does not leave weapons on the map. You can "
"pickup weapons and items and they will respawn, "
"2 Leaves weapons on the map. You can only pick up "
"a weapon once. Picked up items will not respawn, "
"3 Leaves weapons on the map. You can only pick up "
"a weapon once. Picked up items will respawn.");
spawn = Cvar_Get ("spawn", "0", CVAR_SERVERINFO, Cvar_Info,
"Spawn the player entity");
watervis = Cvar_Get ("watervis", "0", CVAR_SERVERINFO, Cvar_Info,
"Set nonzero to enable r_wateralpha on clients");
timeout = Cvar_Get ("timeout", "65", CVAR_NONE, NULL, "Sets the amount of "
"time in seconds before a client is considered "
"disconnected if the server does not receive a "
"packet");
zombietime = Cvar_Get ("zombietime", "2", CVAR_NONE, NULL, "The number of "
"seconds that the server will keep the character "
"of a player on the map who seems to have "
"disconnected");
sv_maxvelocity = Cvar_Get ("sv_maxvelocity", "2000", CVAR_NONE, NULL,
"Sets the maximum velocity an object can "
"travel");
sv_extensions = Cvar_Get ("sv_extensions", "1", CVAR_NONE, NULL,
"Use protocol extensions for QuakeForge "
"clients");
sv_gravity = Cvar_Get ("sv_gravity", "800", CVAR_NONE, NULL,
"Sets the global value for the amount of gravity");
sv_stopspeed = Cvar_Get ("sv_stopspeed", "100", CVAR_NONE, NULL,
"Sets the value that determines how fast the "
"player should come to a complete stop");
sv_maxspeed = Cvar_Get ("sv_maxspeed", "320", CVAR_NONE, NULL,
"Sets the maximum speed a player can move");
sv_spectatormaxspeed = Cvar_Get ("sv_spectatormaxspeed", "500", CVAR_NONE,
NULL, "Sets the maximum speed a "
"spectator can move");
sv_accelerate = Cvar_Get ("sv_accelerate", "10", CVAR_NONE, NULL,
"Sets the acceleration value for the players");
sv_airaccelerate = Cvar_Get ("sv_airaccelerate", "0.7", CVAR_NONE, NULL,
"Sets how quickly the players accelerate in "
"air");
sv_wateraccelerate = Cvar_Get ("sv_wateraccelerate", "10", CVAR_NONE, NULL,
"Sets the water acceleration value");
sv_friction = Cvar_Get ("sv_friction", "4", CVAR_NONE, NULL,
"Sets the friction value for the players");
sv_waterfriction = Cvar_Get ("sv_waterfriction", "4", CVAR_NONE, NULL,
"Sets the water friction value");
sv_aim = Cvar_Get ("sv_aim", "2", CVAR_NONE, NULL,
"Sets the value for auto-aiming leniency");
sv_timekick = Cvar_Get ("sv_timekick", "3", CVAR_SERVERINFO, Cvar_Info,
"Time cheat protection");
sv_timekick_fuzz = Cvar_Get ("sv_timekick_fuzz", "15", CVAR_NONE, NULL,
"Time cheat \"fuzz factor\"");
sv_timekick_interval = Cvar_Get ("sv_timekick_interval", "30", CVAR_NONE,
NULL, "Time cheat check interval");
sv_minqfversion = Cvar_Get ("sv_minqfversion", "0", CVAR_SERVERINFO,
Cvar_Info, "Minimum QF version on client");
sv_maxrate = Cvar_Get ("sv_maxrate", "0", CVAR_SERVERINFO, Cvar_Info,
"Maximum allowable rate");
sv_allow_log = Cvar_Get ("sv_allow_log", "1", CVAR_NONE, NULL,
"Allow remote logging");
sv_allow_status = Cvar_Get ("sv_allow_status", "1", CVAR_NONE, NULL,
"Allow remote status queries (qstat etc)");
sv_allow_ping = Cvar_Get ("sv_allow_pings", "1", CVAR_NONE, NULL,
"Allow remote pings (qstat etc)");
sv_netdosprotect = Cvar_Get ("sv_netdosprotect", "0", CVAR_NONE, NULL,
"DoS flood attack protection");
sv_timestamps = Cvar_Get ("sv_timestamps", "0", CVAR_NONE, NULL,
"Time/date stamps in log entries");
sv_timefmt = Cvar_Get ("sv_timefmt", "[%b %e %X] ", CVAR_NONE, NULL,
"Time/date format to use");
filterban = Cvar_Get ("filterban", "1", CVAR_NONE, NULL,
"Determines the rules for the IP list "
"0 Only IP addresses on the Ban list will be "
"allowed onto the server, 1 Only IP addresses NOT "
"on the Ban list will be allowed onto the server");
sv_filter_automask = Cvar_Get ("sv_filter_automask", "1", CVAR_NONE, NULL,
"Automatically determine the mask length "
"when it is not explicitely given. e.g. "
"\"addip 1.2.0.0\" would be the same as "
"\"addip 1.2.0.0/16\"");
allow_download = Cvar_Get ("allow_download", "1", CVAR_NONE, NULL,
"Toggle if clients can download game data from "
"the server");
allow_download_skins = Cvar_Get ("allow_download_skins", "1", CVAR_NONE,
NULL, "Toggle if clients can download "
"skins from the server");
allow_download_models = Cvar_Get ("allow_download_models", "1", CVAR_NONE,
NULL, "Toggle if clients can download "
"models from the server");
allow_download_sounds = Cvar_Get ("allow_download_sounds", "1", CVAR_NONE,
NULL, "Toggle if clients can download "
"sounds from the server");
allow_download_maps = Cvar_Get ("allow_download_maps", "1", CVAR_NONE,
NULL, "Toggle if clients can download "
"maps from the server");
sv_highchars = Cvar_Get ("sv_highchars", "1", CVAR_NONE, NULL,
"Toggle the use of high character color names "
"for players");
sv_phs = Cvar_Get ("sv_phs", "1", CVAR_NONE, NULL, "Possibly Hearable "
"Set. If set to zero, the server calculates sound "
"hearability in realtime");
pausable = Cvar_Get ("pausable", "1", CVAR_NONE, NULL,
"Toggle if server can be paused 1 is on, 0 is off");
pr_gc = Cvar_Get ("pr_gc", "2", CVAR_NONE, NULL, "Enable/disable the "
"garbage collector. 0 is off, 1 is on, 2 is auto (on "
"for newer qfcc progs, off otherwise)");
pr_gc_interval = Cvar_Get ("pr_gc_interval", "50", CVAR_NONE, NULL,
"Number of frames to wait before running "
"string garbage collector.");
pr_double_remove = Cvar_Get ("pr_double_remove", "1", CVAR_NONE, NULL,
"Handling of double entity remove. "
"0 is silently ignore, 1 prints a "
"traceback, and 2 gives an error.\n"
"Only works if debugging is available "
"and enabled");
// DoS protection
Cmd_AddCommand ("netdosexpire", SV_netDoSexpire_f, "FIXME: part of DoS "
"protection obviously, but I don't know what it does. No "
"Description");
Cmd_AddCommand ("netdosvalues", SV_netDoSvalues_f, "FIXME: part of DoS "
"protection obviously, but I don't know what it does. No "
"Description");
Cmd_AddCommand ("addip", SV_AddIP_f, "Add a single IP or a domain of IPs "
"to the IP list of the server.\n"
"Useful for banning people. (addip (ipnumber))");
Cmd_AddCommand ("removeip", SV_RemoveIP_f, "Remove an IP address from the "
"server IP list. (removeip (ipnumber))");
Cmd_AddCommand ("listip", SV_ListIP_f, "Print out the current list of IPs "
"on the server list.");
Cmd_AddCommand ("writeip", SV_WriteIP_f, "Record all IP addresses on the "
"server IP list. The file name is listip.cfg");
for (i = 0; i < MAX_MODELS; i++)
snprintf (localmodels[i], sizeof (localmodels[i]), "*%i", i);
Info_SetValueForStarKey (svs.info, "*version", QW_VERSION,
!sv_highchars->int_val);
// Brand server as QF, with appropriate QSG standards version --KB
Info_SetValueForStarKey (svs.info, "*qf_version", VERSION,
!sv_highchars->int_val);
Info_SetValueForStarKey (svs.info, "*qsg_version", QW_QSG_VERSION,
!sv_highchars->int_val);
CF_Init ();
// init fraglog stuff
svs.logsequence = 1;
svs.logtime = realtime;
svs.log[0].data = svs.log_buf[0];
svs.log[0].maxsize = sizeof (svs.log_buf[0]);
svs.log[0].cursize = 0;
svs.log[0].allowoverflow = true;
svs.log[1].data = svs.log_buf[1];
svs.log[1].maxsize = sizeof (svs.log_buf[1]);
svs.log[1].cursize = 0;
svs.log[1].allowoverflow = true;
}
/*
Master_Heartbeat
Send a message to the master every few minutes to
let it know we are alive, and log information
*/
#define HEARTBEAT_SECONDS 300
void
Master_Heartbeat (void)
{
char string[2048];
int active, i;
if (realtime - svs.last_heartbeat < HEARTBEAT_SECONDS)
return; // not time to send yet
svs.last_heartbeat = realtime;
// count active users
active = 0;
for (i = 0; i < MAX_CLIENTS; i++)
if (svs.clients[i].state == cs_connected ||
svs.clients[i].state == cs_spawned) active++;
svs.heartbeat_sequence++;
snprintf (string, sizeof (string), "%c\n%i\n%i\n", S2M_HEARTBEAT,
svs.heartbeat_sequence, active);
// send to group master
for (i = 0; i < MAX_MASTERS; i++)
if (master_adr[i].port) {
SV_Printf ("Sending heartbeat to %s\n",
NET_AdrToString (master_adr[i]));
NET_SendPacket (strlen (string), string, master_adr[i]);
}
}
/*
Master_Shutdown
Informs all masters that this server is going down
*/
void
Master_Shutdown (void)
{
char string[2048];
int i;
snprintf (string, sizeof (string), "%c\n", S2M_SHUTDOWN);
// send to group master
for (i = 0; i < MAX_MASTERS; i++)
if (master_adr[i].port) {
SV_Printf ("Sending heartbeat to %s\n",
NET_AdrToString (master_adr[i]));
NET_SendPacket (strlen (string), string, master_adr[i]);
}
}
static inline qboolean
iswhitespace (char c)
{
return c == ' ' || c == '\r' || c == '\n' || c == '\t';
}
/*
SV_ExtractFromUserinfo
Pull specific info from a newly changed userinfo string
into a more C friendly form.
*/
void
SV_ExtractFromUserinfo (client_t *cl)
{
const char *val;
const char *p;
char *r;
char newname[MAX_NAME];
client_t *client;
int i;
qboolean badname = false;
// name from the info string
val = Info_ValueForKey (cl->userinfo, "name");
// copy it, while converting \r, \n, and \t to space, trimming any
// leading/trailing whitespace, and merging consecutive spaces
for (p = val; iswhitespace (*p); p++);
for (r = newname; *p && r != newname + sizeof (newname) - 1; p++) {
if (iswhitespace (*p)) {
if (!iswhitespace (p[1]) && p[1] != '\0')
*r++ = *p;
} else
*r++ = *p;
}
*r = '\0';
// empty (or whitespace only) name
if (!*newname)
badname = true;
// impersonating an user-xxx name. if they're using it
// legitimately it'll be a no-op later on
if (!strncasecmp (newname, "user-", 5))
badname = true;
// impersonating the admin
if (strcasestr (newname, "console") || strcasestr (newname, "admin"))
badname = true;
// check for duplicate names
for (i = 0, client = svs.clients; i < MAX_CLIENTS; i++, client++) {
if (client->state != cs_spawned || client == cl)
continue;
if (!strcasecmp (client->name, val)) {
badname = true;
break;
}
}
// give them a name we like
if (badname)
snprintf (newname, sizeof (newname), "user-%d", cl->userid);
// set the name
if (strcmp (newname, val) || strcmp (cl->name, newname)) {
Info_SetValueForKey (cl->userinfo, "name", newname,
!sv_highchars->int_val);
val = Info_ValueForKey (cl->userinfo, "name");
SVstring (cl->edict, netname) = PR_SetString (&sv_pr_state, newname);
// If the new name was not set (due to the info string being too
// long), drop the client.
if (strcmp (val, newname)) {
Netchan_OutOfBandPrint (net_from, "%c\nPlease choose a "
"different name.\n", A2C_PRINT);
SV_ClientPrintf (cl, PRINT_HIGH, "Please choose a "
"different name.\n");
SV_Printf("Client %d kicked for having a invalid name\n",
cl->userid);
cl->drop = true;
return;
}
// check for spamming
if (!sv.paused) {
if (!cl->lastnametime || realtime - cl->lastnametime > 5) {
cl->lastnamecount = 0;
cl->lastnametime = realtime;
} else if (cl->lastnamecount++ > 4) {
SV_BroadcastPrintf (PRINT_HIGH, "%s was kicked for "
"name spam\n", cl->name);
SV_ClientPrintf (cl, PRINT_HIGH, "You were kicked "
"from the game for name spamming\n");
cl->drop = true;
return;
}
}
// finally, report it to all our friends
// if (cl->state >= cs_spawned && !cl->spectator)
if (*cl->name)
SV_BroadcastPrintf (PRINT_HIGH, "%s changed name to %s\n",
cl->name, newname);
strcpy (cl->name, newname);
}
// rate command
val = Info_ValueForKey (cl->userinfo, "rate");
if (strlen (val)) {
i = atoi (val);
if ((sv_maxrate->int_val) && (i > sv_maxrate->int_val)) {
i = bound (500, i, sv_maxrate->int_val);
} else {
i = bound (500, i, 10000);
}
cl->netchan.rate = 1.0 / i;
}
// msg command
val = Info_ValueForKey (cl->userinfo, "msg");
if (strlen (val)) {
cl->messagelevel = atoi (val);
}
cl->stdver = atof (Info_ValueForKey (cl->userinfo, "*qsg_version"));
}
void
SV_InitNet (void)
{
int port, p;
SV_GenerateIPMasks ();
port = PORT_SERVER;
p = COM_CheckParm ("-port");
if (p && p < com_argc) {
port = atoi (com_argv[p + 1]);
SV_Printf ("Port: %i\n", port);
}
NET_Init (port);
Netchan_Init ();
Net_Log_Init(sv.sound_precache);
// heartbeats will always be sent to the id master
svs.last_heartbeat = -99999; // send immediately
// NET_StringToAdr ("192.246.40.70:27000", &idmaster_adr);
}
void
SV_Init_Memory (void)
{
int mem_parm = COM_CheckParm ("-mem");
int mem_size;
void *mem_base;
sv_mem_size = Cvar_Get ("sv_mem_size", "8", CVAR_NONE, NULL,
"Amount of memory (in MB) to allocate for the "
PROGRAM " heap");
if (mem_parm)
Cvar_Set (sv_mem_size, com_argv[mem_parm + 1]);
if (COM_CheckParm ("-minmemory"))
Cvar_SetValue (sv_mem_size, MINIMUM_MEMORY / (1024 * 1024.0));
Cvar_SetFlags (sv_mem_size, sv_mem_size->flags | CVAR_ROM);
mem_size = (int) (sv_mem_size->value * 1024 * 1024);
if (mem_size < MINIMUM_MEMORY)
Sys_Error ("Only %4.1f megs of memory reported, can't execute game",
mem_size / (float) 0x100000);
mem_base = malloc (mem_size);
if (!mem_base)
Sys_Error ("Can't allocate %d\n", mem_size);
Memory_Init (mem_base, mem_size);
}
void
SV_Init (void)
{
COM_InitArgv (host_parms.argc, (const char**)host_parms.argv);
// COM_AddParm ("-game");
// COM_AddParm ("qw");
Sys_RegisterShutdown (SV_Shutdown);
Cvar_Init_Hash ();
Cmd_Init_Hash ();
Cvar_Init ();
Sys_Init_Cvars ();
Sys_Init ();
Cvar_Get ("cmd_warncmd", "1", CVAR_NONE, NULL, NULL);
Cbuf_Init ();
Cmd_Init ();
// execute +set as early as possible
Cmd_StuffCmds_f ();
Cbuf_Execute_Sets ();
// execute the global configuration file if it exists
// would have been nice if Cmd_Exec_f could have been used, but it
// only reads from within the quake file system, and changing that is
// probably Not A Good Thing (tm).
fs_globalcfg = Cvar_Get ("fs_globalcfg", FS_GLOBALCFG,
CVAR_ROM, 0, "global configuration file");
Cmd_Exec_File (fs_globalcfg->string);
Cbuf_Execute_Sets ();
// execute +set again to override the config file
Cmd_StuffCmds_f ();
Cbuf_Execute_Sets ();
fs_usercfg = Cvar_Get ("fs_usercfg", FS_USERCFG,
CVAR_ROM, 0, "user configuration file");
Cmd_Exec_File (fs_usercfg->string);
Cbuf_Execute_Sets ();
// execute +set again to override the config file
Cmd_StuffCmds_f ();
Cbuf_Execute_Sets ();
SV_Init_Memory ();
svs.maxclients = MAX_CLIENTS;
svs.info = Info_ParseString ("", MAX_SERVERINFO_STRING);
localinfo = Info_ParseString ("", 0); // unlimited
SV_InitOperatorCommands ();
PI_Init ();
sv_console_plugin = Cvar_Get ("sv_console_plugin", "server",
CVAR_ROM, 0, "Plugin used for the console");
PI_RegisterPlugins (server_plugin_list);
Con_Init (sv_console_plugin->string);
Sys_SetStdPrintf (SV_Print);
Sys_SetErrPrintf (SV_Error);
COM_Filesystem_Init_Cvars ();
Game_Init_Cvars ();
COM_Init_Cvars ();
Mod_Init_Cvars ();
Netchan_Init_Cvars ();
Pmove_Init_Cvars ();
SV_Progs_Init_Cvars ();
PR_Init_Cvars ();
// and now reprocess the cmdline's sets for overrides
Cmd_StuffCmds_f ();
Cbuf_Execute_Sets ();
COM_Filesystem_Init ();
Game_Init ();
COM_Init ();
PR_Init ();
SV_Progs_Init ();
Mod_Init ();
SV_InitNet ();
SV_InitLocal ();
Pmove_Init ();
Hunk_AllocName (0, "-HOST_HUNKLEVEL-");
host_hunklevel = Hunk_LowMark ();
Cbuf_InsertText ("exec server.cfg\n");
host_initialized = true;
// SV_Printf ("Exe: "__TIME__" "__DATE__"\n");
SV_Printf ("%4.1f megabyte heap\n", sv_mem_size->value);
SV_Printf ("\n");
SV_Printf ("%s server, Version %s (build %04d)\n", PROGRAM, VERSION,
build_number ());
SV_Printf ("\n");
SV_Printf ("<==> %s initialized <==>\n", PROGRAM);
// process command line arguments
Cmd_Exec_File (fs_usercfg->string);
Cmd_StuffCmds_f ();
Cbuf_Execute ();
// if a map wasn't specified on the command line, spawn start.map
if (sv.state == ss_dead)
Cmd_ExecuteString ("map start", src_command);
if (sv.state == ss_dead)
Sys_Error ("Could not initialize server");
}
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