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/*
* active port forwarder - software for secure forwarding
* Copyright (C) 2003-2007 jeremian <jeremian [at] poczta.fm>
*
* 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 the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
/* This example module scan the message for specified string and perform
* appropriate action
*/
/* info
* return values:
* info about module
*/
char*
info(void)
{
return "Module tester v0.1";
}
/* allow
* return values:
* 0 - allow to connect
* !=0 - drop the connection
*/
int
allow(char* host, char* port)
{
return 0; /* allow to connect */
}
/* filter
* return values:
* 0 - allow to transfer
* 1 - drop the packet
* 2 - drop the connection
* 3 - release the module
* 4 - drop the packet and release the module
* 5 - drop the connection and release the module
*/
int
filter(char* host, unsigned char* message, int* length)
{
int i;
for (i = 1; i < *length; ++i) {
if (message[i-1] == 'M') {
if (message[i] == '1') {
return 1; /* ignored */
}
if (message[i] == '2') {
return 2; /* dropped */
}
if (message[i] == '3') {
return 3; /* release */
}
if (message[i] == '4') {
return 4; /* ignored + release */
}
if (message[i] == '5') {
return 5; /* dropped + release */
}
}
}
return 0; /* allow to transfer */
}
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