108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/***************************************************************************
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* Copyright (C) 03/2005 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <string.h>
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#include "netpkt.h"
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#include "plugin.h"
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#include "plugin_helper.h"
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static struct scan_ports port_arr[] = {
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{ 2302, 2302, 30 }, /* halo(30) */
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{ 3455, 3455, 37 }, /* painkiller(34) */
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{ 10481, 10482, 44 }, /* swat4 (44) */
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{ 29900, 29910, 45 }, /* battlefield2 (45) */
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{ 0, 0, 0 }
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};
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static char scanmsg[] = { 0xFE, 0xFD, 0x00, 0xDE, 0xAD, 0xBE, 0xEF, 0xFF, 0x00, 0x00 };
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static char replymsg[] = { 0x00, 0xDE, 0xAD, 0xBE, 0xEF };
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static char search_hostport[] = "hostport";
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static char search_gamename[] = "gamename";
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static char reply_bf2[] = "battlefield2";
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static int scan(void)
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{
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pkt_send_portarr(NULL, port_arr, scanmsg, sizeof(scanmsg));
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return 1;
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}
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static int parse(struct net_pkt *pkt)
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{
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int gameid, pos1, pos3, port;
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if (!(gameid = pkt_check_portarr(pkt, port_arr)))
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return PARSE_REJECT;
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if (pkt_memcmp(pkt, 0, replymsg, sizeof(replymsg)))
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return PARSE_REJECT;
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pos1 = pkt_memmem(pkt, 0, search_gamename, strlen(search_gamename));
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pos1 += strlen(search_gamename) +1;
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/* hostport angabe suchen */
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pos3 = pkt_memmem(pkt, 0, search_hostport, strlen(search_hostport));
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if (pos3 != -1)
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pkt_parse_int(pkt, pos3 + strlen(search_hostport) +1, &port);
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switch (gameid) {
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case 30:/* halo */
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case 37:/* painkiller */
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break;
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case 44:/* swat4 */
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if (pos3 != -1)
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gameid = 44;
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else
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return PARSE_REJECT;
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break;
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case 45:/* battlefield 2 */
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// todo: pos3 check noetig?
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if (!pkt_memcmp(pkt, pos1, reply_bf2, strlen(reply_bf2)) && pos3 != -1)
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gameid = 45;
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else
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return PARSE_REJECT;
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break;
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default:
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return PARSE_REJECT;
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break;
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}
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/*
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* wenn ein hostport angegeben wurde, und das nicht der src port ist
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* beide ports in die serverliste uebernehmen
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*/
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if ((pos3 != -1) && (port != ntohs(pkt->addr.sin_port))) {
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server_add(gameid, pkt->addr.sin_addr.s_addr, port, ntohs(pkt->addr.sin_port));
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} else {
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server_add_pkt(gameid, pkt);
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}
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return PARSE_ACCEPT;
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}
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struct hlswmaster_plugin plugin = {
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.name = "gamespy2",
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.scan = &scan,
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.parse = &parse,
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};
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