codemp/game/g_svcmds.c

Go to the documentation of this file.

// Copyright (C) 1999-2000 Id Software, Inc.
//

// this file holds commands that can be executed by the server console, but not remote clients

#include "g_local.h"


/*
==============================================================================

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.

g_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.


==============================================================================
*/

// extern       vmCvar_t        g_banIPs;
// extern       vmCvar_t        g_filterBan;


typedef struct ipFilter_s
{
        unsigned        mask;
        unsigned        compare;
} ipFilter_t;

// VVFIXME - We don't need this at all, but this is the quick way.
#ifdef _XBOX
#define MAX_IPFILTERS   1
#else
#define MAX_IPFILTERS   1024
#endif

static ipFilter_t       ipFilters[MAX_IPFILTERS];
static int                      numIPFilters;

/*
=================
StringToFilter
=================
*/
static qboolean StringToFilter (char *s, ipFilter_t *f)
{
        char    num[128];
        int             i, j;
        byte    b[4];
        byte    m[4];
        
        for (i=0 ; i<4 ; i++)
        {
                b[i] = 0;
                m[i] = 0;
        }
        
        for (i=0 ; i<4 ; i++)
        {
                if (*s < '0' || *s > '9')
                {
                        G_Printf( "Bad filter address: %s\n", s );
                        return qfalse;
                }
                
                j = 0;
                while (*s >= '0' && *s <= '9')
                {
                        num[j++] = *s++;
                }
                num[j] = 0;
                b[i] = atoi(num);
                if (b[i] != 0)
                        m[i] = 255;

                if (!*s)
                        break;
                s++;
        }
        
        f->mask = *(unsigned *)m;
        f->compare = *(unsigned *)b;
        
        return qtrue;
}

/*
=================
UpdateIPBans
=================
*/
static void UpdateIPBans (void)
{
        byte    b[4];
        int             i;
        char    iplist[MAX_INFO_STRING];

        *iplist = 0;
        for (i = 0 ; i < numIPFilters ; i++)
        {
                if (ipFilters[i].compare == 0xffffffff)
                        continue;

                *(unsigned *)b = ipFilters[i].compare;
                Com_sprintf( iplist + strlen(iplist), sizeof(iplist) - strlen(iplist), 
                        "%i.%i.%i.%i ", b[0], b[1], b[2], b[3]);
        }

        trap_Cvar_Set( "g_banIPs", iplist );
}

/*
=================
G_FilterPacket
=================
*/
qboolean G_FilterPacket (char *from)
{
        byte                    m[4];// = {'\0','\0','\0','\0'};
        int                             i = 0;
        unsigned int    in;
        char                    *p;

        while (i < 4)
        {
                m[i] = 0;
                i++;
        }

        i = 0;
        p = from;
        while (*p && i < 4) {
                while (*p >= '0' && *p <= '9') {
                        m[i] = m[i]*10 + (*p - '0');
                        p++;
                }
                if (!*p || *p == ':')
                        break;
                i++, p++;
        }
        
        in = *(unsigned int *)m;

        for (i=0 ; i<numIPFilters ; i++)
                if ( (in & ipFilters[i].mask) == ipFilters[i].compare)
                        return g_filterBan.integer != 0;

        return g_filterBan.integer == 0;
}

/*
=================
AddIP
=================
*/
static void AddIP( char *str )
{
        int             i;

        for (i = 0 ; i < numIPFilters ; i++)
                if (ipFilters[i].compare == 0xffffffff)
                        break;          // free spot
        if (i == numIPFilters)
        {
                if (numIPFilters == MAX_IPFILTERS)
                {
                        G_Printf ("IP filter list is full\n");
                        return;
                }
                numIPFilters++;
        }
        
        if (!StringToFilter (str, &ipFilters[i]))
                ipFilters[i].compare = 0xffffffffu;

        UpdateIPBans();
}

/*
=================
G_ProcessIPBans
=================
*/
void G_ProcessIPBans(void) 
{
        char *s, *t;
        char            str[MAX_TOKEN_CHARS];

        Q_strncpyz( str, g_banIPs.string, sizeof(str) );

        for (t = s = g_banIPs.string; *t; /* */ ) {
                s = strchr(s, ' ');
                if (!s)
                        break;
                while (*s == ' ')
                        *s++ = 0;
                if (*t)
                        AddIP( t );
                t = s;
        }
}


/*
=================
Svcmd_AddIP_f
=================
*/
void Svcmd_AddIP_f (void)
{
        char            str[MAX_TOKEN_CHARS];

        if ( trap_Argc() < 2 ) {
                G_Printf("Usage:  addip <ip-mask>\n");
                return;
        }

        trap_Argv( 1, str, sizeof( str ) );

        AddIP( str );

}

/*
=================
Svcmd_RemoveIP_f
=================
*/
void Svcmd_RemoveIP_f (void)
{
        ipFilter_t      f;
        int                     i;
        char            str[MAX_TOKEN_CHARS];

        if ( trap_Argc() < 2 ) {
                G_Printf("Usage:  sv removeip <ip-mask>\n");
                return;
        }

        trap_Argv( 1, str, sizeof( str ) );

        if (!StringToFilter (str, &f))
                return;

        for (i=0 ; i<numIPFilters ; i++) {
                if (ipFilters[i].mask == f.mask &&
                        ipFilters[i].compare == f.compare) {
                        ipFilters[i].compare = 0xffffffffu;
                        G_Printf ("Removed.\n");

                        UpdateIPBans();
                        return;
                }
        }

        G_Printf ( "Didn't find %s.\n", str );
}

/*
===================
Svcmd_EntityList_f
===================
*/
void    Svcmd_EntityList_f (void) {
        int                     e;
        gentity_t               *check;

        check = g_entities+1;
        for (e = 1; e < level.num_entities ; e++, check++) {
                if ( !check->inuse ) {
                        continue;
                }
                G_Printf("%3i:", e);
                switch ( check->s.eType ) {
                case ET_GENERAL:
                        G_Printf("ET_GENERAL          ");
                        break;
                case ET_PLAYER:
                        G_Printf("ET_PLAYER           ");
                        break;
                case ET_ITEM:
                        G_Printf("ET_ITEM             ");
                        break;
                case ET_MISSILE:
                        G_Printf("ET_MISSILE          ");
                        break;
                case ET_MOVER:
                        G_Printf("ET_MOVER            ");
                        break;
                case ET_BEAM:
                        G_Printf("ET_BEAM             ");
                        break;
                case ET_PORTAL:
                        G_Printf("ET_PORTAL           ");
                        break;
                case ET_SPEAKER:
                        G_Printf("ET_SPEAKER          ");
                        break;
                case ET_PUSH_TRIGGER:
                        G_Printf("ET_PUSH_TRIGGER     ");
                        break;
                case ET_TELEPORT_TRIGGER:
                        G_Printf("ET_TELEPORT_TRIGGER ");
                        break;
                case ET_INVISIBLE:
                        G_Printf("ET_INVISIBLE        ");
                        break;
                case ET_NPC:
                        G_Printf("ET_NPC              ");
                        break;
                default:
                        G_Printf("%3i                 ", check->s.eType);
                        break;
                }

                if ( check->classname ) {
                        G_Printf("%s", check->classname);
                }
                G_Printf("\n");
        }
}

gclient_t       *ClientForString( const char *s ) {
        gclient_t       *cl;
        int                     i;
        int                     idnum;

        // numeric values are just slot numbers
        if ( s[0] >= '0' && s[0] <= '9' ) {
                idnum = atoi( s );
                if ( idnum < 0 || idnum >= level.maxclients ) {
                        Com_Printf( "Bad client slot: %i\n", idnum );
                        return NULL;
                }

                cl = &level.clients[idnum];
                if ( cl->pers.connected == CON_DISCONNECTED ) {
                        G_Printf( "Client %i is not connected\n", idnum );
                        return NULL;
                }
                return cl;
        }

        // check for a name match
        for ( i=0 ; i < level.maxclients ; i++ ) {
                cl = &level.clients[i];
                if ( cl->pers.connected == CON_DISCONNECTED ) {
                        continue;
                }
                if ( !Q_stricmp( cl->pers.netname, s ) ) {
                        return cl;
                }
        }

        G_Printf( "User %s is not on the server\n", s );

        return NULL;
}

/*
===================
Svcmd_ForceTeam_f

forceteam <player> <team>
===================
*/
void    Svcmd_ForceTeam_f( void ) {
        gclient_t       *cl;
        char            str[MAX_TOKEN_CHARS];

        // find the player
        trap_Argv( 1, str, sizeof( str ) );
        cl = ClientForString( str );
        if ( !cl ) {
                return;
        }

        // set the team
        trap_Argv( 2, str, sizeof( str ) );
        SetTeam( &g_entities[cl - level.clients], str );
}

char    *ConcatArgs( int start );

/*
=================
ConsoleCommand

=================
*/
qboolean        ConsoleCommand( void ) {
        char    cmd[MAX_TOKEN_CHARS];

        trap_Argv( 0, cmd, sizeof( cmd ) );

        if ( Q_stricmp (cmd, "entitylist") == 0 ) {
                Svcmd_EntityList_f();
                return qtrue;
        }

        if ( Q_stricmp (cmd, "forceteam") == 0 ) {
                Svcmd_ForceTeam_f();
                return qtrue;
        }

        if (Q_stricmp (cmd, "game_memory") == 0) {
                Svcmd_GameMem_f();
                return qtrue;
        }

        if (Q_stricmp (cmd, "addbot") == 0) {
                Svcmd_AddBot_f();
                return qtrue;
        }

        if (Q_stricmp (cmd, "botlist") == 0) {
                Svcmd_BotList_f();
                return qtrue;
        }

/*      if (Q_stricmp (cmd, "abort_podium") == 0) {
                Svcmd_AbortPodium_f();
                return qtrue;
        }
*/
        if (Q_stricmp (cmd, "addip") == 0) {
                Svcmd_AddIP_f();
                return qtrue;
        }

        if (Q_stricmp (cmd, "removeip") == 0) {
                Svcmd_RemoveIP_f();
                return qtrue;
        }

        if (Q_stricmp (cmd, "listip") == 0) {
                trap_SendConsoleCommand( EXEC_NOW, "g_banIPs\n" );
                return qtrue;
        }

        if (g_dedicated.integer) {
                if (Q_stricmp (cmd, "say") == 0) {
                        trap_SendServerCommand( -1, va("print \"server: %s\n\"", ConcatArgs(1) ) );
                        return qtrue;
                }
                // everything else will also be printed as a say command
                trap_SendServerCommand( -1, va("print \"server: %s\n\"", ConcatArgs(0) ) );
                return qtrue;
        }

        return qfalse;
}