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#!/usr/bin/env perl
#-*- Mode: perl; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
# Time configurator. Designed to be architecture- and distribution independent.
#
# Copyright (C) 2000-2001 Ximian, Inc.
#
# Authors: Chema Celorio <chema@ximian.com>
# Arturo Espinosa <arturo@ximian.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library 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 Library General Public License for more details.
#
# You should have received a copy of the GNU Library 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.
# Best viewed with 100 columns of width.
BEGIN {
$SCRIPTSDIR = "@scriptsdir@";
if ($SCRIPTSDIR =~ /^@scriptsdir[@]/)
{
$SCRIPTSDIR = ".";
$DOTIN = ".in";
}
require "$SCRIPTSDIR/ishare.pl$DOTIN";
require "$SCRIPTSDIR/general.pl$DOTIN";
require "$SCRIPTSDIR/platform.pl$DOTIN";
require "$SCRIPTSDIR/util.pl$DOTIN";
require "$SCRIPTSDIR/file.pl$DOTIN";
require "$SCRIPTSDIR/xml.pl$DOTIN";
}
# --- Tool information --- #
$name = "internetsharing";
$version = "@VERSION@";
@platforms = ("redhat-7.0", "redhat-7.1", "redhat-7.2",
"mandrake-7.2",
"debian-2.2", "debian-woody");
$description =<<"end_of_description;";
Sets up firewall rules for a basic internet sharing (masq)
network.
end_of_description;
# --- XML parsing --- #
# Scan XML from standard input to an internal tree.
sub xml_parse
{
my ($tree, %hash, $elem);
# Scan XML to tree.
$tree = &gst_xml_scan ();
# Walk the tree recursively and extract configuration parameters.
# This is the top level - find and enter the "networking" tag.
while ($elem = shift @$tree)
{
if ($elem eq "internetsharing") { &xml_parse_internetsharing (shift @$tree, \%hash); }
else { &gst_report ("xml_unexp_tag", $elem); shift @$tree; }
}
return (\%hash);
}
sub xml_parse_internetsharing
{
my ($tree, $hash) = @_;
my ($elem, %interface);
shift @$tree; # Skip attributes.
while ($elem = shift @$tree)
{
if ($elem eq "fwrules") { $$hash{"fwrules"} = &xml_parse_fwrules (shift @$tree); }
elsif ($elem eq "dhcp") { $$hash{"dhcp"} = &xml_parse_dhcp (shift @$tree); }
elsif ($elem eq "interface") { &gst_network_xml_parse_interface (shift @$tree, \%interface); }
else { &gst_report ("xml_unexp_tag", $elem); shift @$tree; }
}
$$hash{"interface"} = \%interface unless scalar keys %interface == 0;
}
sub xml_parse_fwrules
{
my ($tree) = @_;
my ($elem, $hash, $landevs);
$hash = {};
$landevs = [];
shift @$tree; # Skip attributes.
while ($elem = shift @$tree)
{
if ($elem eq "tools") { $$hash{"tools"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "kerneltool") { $$hash{"kerneltool"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "configured") { $$hash{"configured"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "forwarding") { $$hash{"forwarding"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "masquerading") { $$hash{"masquerading"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "overwrite") { $$hash{"overwrite"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "active") { $$hash{"active"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "landev") { push @$landevs, &gst_xml_get_pcdata (shift @$tree); }
else { &gst_report ("xml_unexp_tag", $elem); shift @$tree; }
}
$$hash{"landev"} = $landevs;
return $hash;
}
sub xml_parse_dhcp
{
my ($tree) = @_;
my ($elem, $hash, $devs);
$hash = {};
$devs = [];
shift @$tree; # Skip attributes.
while ($elem = shift @$tree)
{
if ($elem eq "installed") { $$hash{"installed"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "configured") { $$hash{"configured"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "overwrite") { $$hash{"overwrite"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "active") { $$hash{"active"} = &gst_xml_get_pcdata (shift @$tree); }
elsif ($elem eq "dev") { push @$devs, &gst_xml_get_pcdata (shift @$tree); }
else { &gst_report ("xml_unexp_tag", $elem); shift @$tree; }
}
$$hash{"dev"} = $devs;
return $hash;
}
# --- XML printing --- #
sub xml_print
{
my ($h) = @_;
&gst_xml_print_begin ();
&gst_xml_print_hash ($$h{"fwrules"}, "fwrules");
&gst_xml_print_hash ($$h{"dhcp"}, "dhcp");
&gst_xml_print_hash_hash ($$h{"interface"}, "interface");
&gst_xml_print_end ();
}
# Main operations
sub get
{
my $hash;
$hash = &gst_ishare_conf_get ();
&gst_report_end ();
&xml_print ($hash);
}
sub get_interfaces
{
my $hash;
$hash = &gst_network_interfaces_get ();
&gst_report_end ();
&gst_xml_print_begin ();
&gst_xml_print_hash_hash ($hash, "interface");
&gst_xml_print_end ();
}
sub set
{
my $hash;
$hash = &xml_parse ();
&gst_ishare_conf_set ($hash);
&gst_report_end ();
}
# --- Filter config: XML in, XML out --- #
sub filter
{
my $hash;
$hash = &xml_parse ();
&gst_report_end ();
&xml_print ($hash);
}
# --- Main --- #
# get, set and filter are special cases that don't need more parameters than a ref to their function.
# Read general.pl.in:gst_run_directive to know about the format of this hash.
$directives = {
"get" => [ \&get, [], "" ],
"set" => [ \&set, [], "" ],
"filter" => [ \&filter, [], "" ],
"get_interfaces" => [ \&get_interfaces, [], "Get the interface tags only." ]
};
$tool = &gst_init ($name, $version, $description, $directives, @ARGV);
&gst_platform_ensure_supported ($tool, @platforms);
&gst_run ($tool);
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