79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
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/* tinyproxy - A fast light-weight HTTP proxy
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* Copyright (C) 1998 Steven Young <sdyoung@miranda.org>
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* Copyright (C) 1999-2005 Robert James Kaes <rjkaes@users.sourceforge.net>
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* Copyright (C) 2009 Michael Adam <obnox@samba.org>
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "connect-ports.h"
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#include "vector.h"
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#include "log.h"
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/*
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* This is a global variable which stores which ports are allowed by
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* the CONNECT method. It's a security thing.
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*/
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static vector_t ports_allowed_by_connect = NULL;
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/*
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* Now, this routine adds a "port" to the list. It also creates the list if
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* it hasn't already by done.
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*/
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void add_connect_port_allowed (int port)
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{
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if (!ports_allowed_by_connect) {
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ports_allowed_by_connect = vector_create ();
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if (!ports_allowed_by_connect) {
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log_message (LOG_WARNING,
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"Could not create a list of allowed CONNECT ports");
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return;
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}
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}
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log_message (LOG_INFO,
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"Adding Port [%d] to the list allowed by CONNECT", port);
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vector_append (ports_allowed_by_connect, (void **) &port,
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sizeof (port));
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}
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/*
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* This routine checks to see if a port is allowed in the CONNECT method.
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*
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* Returns: 1 if allowed
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* 0 if denied
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*/
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int check_allowed_connect_ports (int port)
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{
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size_t i;
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int *data;
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/*
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* A port list is REQUIRED for a CONNECT request to function
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* properly. This closes a potential security hole.
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*/
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if (!ports_allowed_by_connect)
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return 0;
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for (i = 0; i != (size_t) vector_length (ports_allowed_by_connect); ++i) {
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data =
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(int *) vector_getentry (ports_allowed_by_connect, i, NULL);
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if (data && *data == port)
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return 1;
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}
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return 0;
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}
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