Files
webmin/shorewall/shorewall-lib.pl
Paul Gear dacac43e55 BUG: Corrected mis-handling of nested zones introduced in 1.350.
Removed debugging cruft added in 1.350.
Added support for end-of-line comments in zones, params, and shorewall.conf.
Added support for display of long zone names under the new zones format.
Added module option to disable display of long zone names in the rules file.
2007-08-08 08:50:58 +00:00

1875 lines
54 KiB
Perl

# shorewall-lib.pl
# Common functions for the shorewall configuration files
# FIXME:
# - rule sections
# - read_shorewall_config & standard_parser do not allow quoted comment characters
do '../web-lib.pl';
&init_config();
do '../ui-lib.pl';
# Get the version
$shorewall_version = &get_shorewall_version(0);
%shorewall_config = &read_shorewall_config();
#&dump_shorewall_config();
# get access permissions
%access = &get_module_acl();
@shorewall_files = ( 'zones', 'interfaces', 'policy', 'rules', 'tos',
'masq', 'nat', 'proxyarp', 'routestopped',
'tunnels', 'hosts', 'blacklist',
( &version_atleast(2, 3) ? ( 'providers' ) : ( ) ),
'params', 'shorewall.conf',
);
@comment_tables = ( 'masq', 'nat', 'rules', 'tcrules' );
sub debug_message
{
print STDERR scalar(localtime).": shorewall-lib: @_\n";
}
# version_atleast(v1, v2, v3, ...)
# - Check if the Shorewall version is greater than or equal to the one supplied.
sub version_atleast
{
local @vsp = split(/\./, $shorewall_version);
local $i;
for($i=0; $i<@vsp || $i<@_; $i++) {
return 0 if ($vsp[$i] < $_[$i]);
return 1 if ($vsp[$i] > $_[$i]);
}
return 1; # same!
}
sub read_shorewall_config
{
local @ret;
open(SHOREWALL_CONF, "$config{'config_dir'}/shorewall.conf");
while (<SHOREWALL_CONF>) {
chomp;
s/\r//;
s/#.*$//;
@F = split( /=/, $_, 2 );
next if $#F != 1;
push @ret, ( $F[0], $F[1] );
}
close(SHOREWALL_CONF);
return @ret;
}
# dump_shorewall_config()
# - Debugging code
sub dump_shorewall_config
{
for (sort keys %shorewall_config) {
print STDERR "$_=$shorewall_config{$_}\n";
}
}
# shorewall_config(var)
sub shorewall_config
{
if (exists $shorewall_config{$_[0]} && defined $shorewall_config{$_[0]}) {
return $shorewall_config{$_[0]};
}
return '';
}
# return true if new zones format is in use
sub new_zones_format
{
# Shorewall 3.4.0 - 3.4.4 have a bug that prevents the old format from being used.
if (&version_atleast(3, 4) && !&version_atleast(3, 4, 5)) {
return 1;
}
# Zones table is in new format in Shorewall 3, unless shorewall.conf has IPSECFILE=ipsec
if (!&version_atleast(3) || &shorewall_config('IPSECFILE') eq 'ipsec') {
return 0;
}
return 1;
}
# read_table_file(table, &parserfunc)
sub read_table_file
{
local @rv;
local $func = $_[1];
open(FILE, "$config{'config_dir'}/$_[0]");
while(<FILE>) {
s/\r|\n//g;
local $l = &$func($_);
push(@rv, $l) if ($l);
}
close(FILE);
return @rv;
}
# read_table_struct(table, &parserfunc)
sub read_table_struct
{
if (!defined($read_table_cache{$_[0]})) {
local @rv;
local $func = $_[1];
open(FILE, "$config{'config_dir'}/$_[0]");
local $lnum = 0;
while(<FILE>) {
s/\r|\n//g;
local $cmt;
if (s/#\s*(.*)$//) {
$cmt = $1;
}
local $l = &$func($_);
if ($l) {
push(@rv, { 'line' => $lnum,
'file' => "$config{'config_dir'}/$_[0]",
'table' => $_[0],
'index' => scalar(@rv),
'values' => $l,
'comment' => $cmt });
}
$lnum++;
}
close(FILE);
$read_table_cache{$_[0]} = \@rv;
}
return $read_table_cache{$_[0]};
}
# find_line_num(&lref, &parserfunc, index)
sub find_line_num
{
local $lref = $_[0];
local $func = $_[1];
local $idx = 0;
for($i=0; $i<@$lref; $i++) {
if (&$func($lref->[$i])) {
if ($idx++ == $_[2]) {
return $i;
}
}
}
return undef;
}
# delete_table_row(table, &parserfunc, index)
sub delete_table_row
{
local $lref = &read_file_lines("$config{'config_dir'}/$_[0]");
local $lnum = &find_line_num($lref, $_[1], $_[2]);
splice(@$lref, $lnum, 1) if (defined($lnum));
&flush_file_lines();
}
# delete_table_struct(&struct)
sub delete_table_struct
{
local $lref = &read_file_lines($_[0]->{'file'});
splice(@$lref, $_[0]->{'line'}, 1);
&flush_file_lines();
local $cache = $read_table_cache{$_[0]->{'table'}};
local $idx = &indexof($_[0], @$cache);
if ($idx >= 0) {
splice(@$cache, $idx, 1);
}
local $c;
foreach $c (@$cache) {
$c->{'line'}-- if ($c->{'line'} > $_[0]->{'line'});
$c->{'index'}-- if ($c->{'index'} > $_[0]->{'index'});
}
}
# create_table_row(table, &parserfunc, line, [insert-index])
sub create_table_row
{
local $lref = &read_file_lines("$config{'config_dir'}/$_[0]");
local ($i, $idx);
for($i=0; $i<@$lref; $i++) {
if ($lref->[$i] =~ /^#+\s*LAST\s+LINE/) {
$idx = $i;
last;
}
}
if (defined($_[3])) {
local $lnum = &find_line_num($lref, $_[1], $_[3]);
$lnum = $idx if (!defined($lnum));
splice(@$lref, $lnum, 0, &simplify_line($_[2]));
}
else {
splice(@$lref, $idx, 0, &simplify_line($_[2]));
}
&flush_file_lines();
}
# create_table_struct(&struct, parserfunc, [&insert-before])
sub create_table_struct
{
local $lref = &read_file_lines("$config{'config_dir'}/$_[0]->{'table'}");
local ($i, $idx);
for($i=0; $i<@$lref; $i++) {
if ($lref->[$i] =~ /^#+\s*LAST\s+LINE/) {
$idx = $i;
last;
}
}
if (!defined($idx)) {
$idx = @$lref;
}
local $cache = &read_table_struct($_[0]->{'table'}, $_[1]);
if ($_[2]) {
# Insert into file
splice(@$lref, $_[2]->{'line'}, 0, &make_struct($_[0]));
$_[0]->{'file'} = "$config{'config_dir'}/$_[0]->{'table'}";
$_[0]->{'line'} = $_[2]->{'line'};
$_[0]->{'index'} = $_[2]->{'index'};
local $c;
foreach $c (@$cache) {
$_[0]->{'line'}++ if ($c->{'line'} >= $_[2]->{'line'});
$_[0]->{'index'}++ if ($c->{'index'} >= $_[2]->{'index'});
}
local $iidx = &indexof($_[2], @$cache);
splice(@$cache, $iidx, 0, $_[0]);
}
else {
# Append to file
splice(@$lref, $idx, 0, &make_struct($_[0]));
$_[0]->{'file'} = "$config{'config_dir'}/$_[0]->{'table'}";
$_[0]->{'line'} = $idx;
$_[0]->{'index'} = @$cache;
push(@$cache, $_[0]->{'index'});
}
&flush_file_lines();
}
# modify_table_row(table, &parserfunc, index, line)
sub modify_table_row
{
local $lref = &read_file_lines("$config{'config_dir'}/$_[0]");
local $lnum = &find_line_num($lref, $_[1], $_[2]);
$lref->[$lnum] = &simplify_line($_[3]) if (defined($lnum));
&flush_file_lines();
}
# modify_table_struct(&newstruct, &oldstruct)
sub modify_table_struct
{
local $lref = &read_file_lines("$config{'config_dir'}/$_[1]->{'table'}");
$lref->[$_[1]->{'line'}] = &make_struct($_[0]);
if ($_[0] ne $_[1]) {
$_[0]->{'line'} = $_[1]->{'line'};
$_[0]->{'index'} = $_[1]->{'index'};
local $cache = $read_table_cache{$_[1]->{'table'}};
local $idx = &indexof($_[1], @$cache);
$cache->[$idx] = $_[0];
}
&flush_file_lines();
}
# swap_table_rows(table, &parserfunc, index1, index2)
sub swap_table_rows
{
local $lref = &read_file_lines("$config{'config_dir'}/$_[0]");
local $lnum1 = &find_line_num($lref, $_[1], $_[2]);
local $lnum2 = &find_line_num($lref, $_[1], $_[3]);
($lref->[$lnum1], $lref->[$lnum2]) = ($lref->[$lnum2], $lref->[$lnum1]);
&flush_file_lines();
}
# make_struct(&struct)
sub make_struct
{
local $line = join("\t", @{$_[0]->{'values'}});
if ($_[0]->{'comment'}) {
$line .= "\t# $_[0]->{'comment'}";
}
return &simplify_line($line);
}
# simplify_line(line)
# Removes blank fields from the end of a line
sub simplify_line
{
local $rv = $_[0];
while($rv =~ s/\s+$// || $rv =~ s/\-$//) { }
return $rv;
}
sub lock_table
{
&lock_file("$config{'config_dir'}/$_[0]");
}
sub unlock_table
{
&unlock_file("$config{'config_dir'}/$_[0]");
}
# parser for whitespace-separated config files
sub standard_parser
{
local $l = $_[0];
$l =~ s/#.*$//;
local @sp = split(/\s+/, $l);
return undef if ($sp[0] eq "SECTION");
return @sp ? \@sp : undef;
}
# parser for shell-style config files
sub config_parser
{
local $l = $_[0];
$l =~ s/#\s*(.*?)\s*$//; # save the comment we strip
local @sp = split(/=/, $l, 2);
if ($#sp > -1 && defined $1) {
push @sp, $1; # add back the saved comment, if present
}
return @sp ? \@sp : undef;
}
# determine which parser function to use
sub get_parser_func
{
local $hashref = $_[0];
&get_clean_table_name($hashref);
local $pfunc = $hashref->{'tableclean'}."_parser";
if (!defined(&$pfunc)) {
if ($hashref->{'tableclean'} =~ /^(params|shorewall_conf)$/) {
$pfunc = "config_parser";
}
else {
$pfunc = "standard_parser";
}
}
return $pfunc;
}
# ensure that the passed string contains only characters valid in shell variable identifiers
sub clean_name
{
local $str = $_[0];
$str =~ s/\W/_/g;
return $str;
}
# get a table name that is clean enough to use as a function prefix
sub get_clean_table_name
{
local $hashref = $_[0];
if (!exists hashref->{'tableclean'}) {
$hashref->{'tableclean'} = &clean_name($in{'table'});
}
}
# zone_field(name, value, othermode, simplemode)
sub zone_field
{
local @ztable = &read_table_file("zones", \&zones_parser);
local $found = 0;
print "<select name=$_[0]>\n";
if ($_[3] == 2) {
$found = !$_[1];
}
elsif ($_[3] == 1) {
printf "<option value=- %s>%s\n",
$_[1] eq '-' ? "selected" : "", "&lt;$text{'list_any'}&gt;";
$found = !$_[1] || $_[1] eq '-';
}
elsif ($_[3] == 0) {
printf "<option value=all %s>%s\n",
$_[1] eq 'all' ? "selected" : "", "&lt;$text{'list_any'}&gt;";
printf "<option value=\$FW %s>%s\n",
&is_fw($_[1]) ? "selected" : "", "&lt;$text{'list_fw'}&gt;";
$found = !$_[1] || $_[1] eq 'all' || &is_fw($_[1]);
}
foreach $z (@ztable) {
printf "<option value=%s %s>%s\n",
$z->[0], $_[1] eq $z->[0] ? "selected" : "", &convert_zone($z->[0]);
$found++ if ($_[1] eq $z->[0]);
}
if ($_[2]) {
printf "<option value='' %s>%s\n",
$found ? "" : "selected", $text{'list_other'};
}
else {
print "<option value=$_[1] selected>$_[1]\n" if (!$found);
}
print "</select>\n";
return $found;
}
# iface_field(name, value)
sub iface_field
{
local @itable = &read_table_file("interfaces", \&standard_parser);
print "<select name=$_[0]>\n";
local $found = !$_[1];
foreach $i (@itable) {
printf "<option value=%s %s>%s\n",
$i->[1], $_[1] eq $i->[1] ? "selected" : "", $i->[1];
$found++ if ($_[1] eq $i->[1]);
}
print "<option value=$_[1] selected>$_[1]\n" if (!$found);
print "</select>\n";
}
# convert_zone(name)
# Given a zone name, returns a description
# FIXME: inefficient - should be able to pass ztable into this function
sub convert_zone
{
local @ztable = &read_table_file("zones", \&zones_parser);
foreach $z (@ztable) {
if ($_[0] eq $z->[0]) {
if (&new_zones_format()) {
# No descriptions in new format - use comment field if present
if (defined $z->[6] && $z->[6] ne "") {
$ret = $_[0]." - ".$z->[6];
}
else {
$ret = $_[0];
}
}
else {
$ret = $z->[1];
}
}
}
if (&is_fw($_[0])) {
$ret = $text{'list_fw'};
}
return $ret || $_[0];
}
# nice_host_list(list)
# Convert a comma-separate host string to space-separated
sub nice_host_list
{
local @hosts = split(/,/, $_[0]);
if (@host > 5) {
return join(", ", @hosts[0..5]).", ...";
}
else {
return join(", ", @hosts);
}
}
# is_fw(zone)
# - Checks if the supplied zone is the firewall zone.
# Now handles renaming of firewall zone in shorewall.conf.
sub is_fw
{
local $fw = &shorewall_config('FW');
$fw = 'fw' if ($fw eq '');
return $_[0] eq '$FW' || $_[0] eq $fw;
}
################################# zones #######################################
sub zones_parser
{
if (&new_zones_format()) {
# New format
local $l = $_[0];
$l =~ s/#\s*(.*?)\s*$//; # save the stripped comment
local $comment = $1 if defined $1;
local @r = split(/\s+/, $l, 6);
if ($#r > -1) {
local $zone = shift @r;
# split out parent if it is present in the zone field
local $parent;
$zone =~ m/(.*?):(.*)/;
if (defined $2) {
$zone = $1;
$parent = $2;
}
else {
$parent = "";
}
unshift @r, $zone, $parent;
# put the saved comment back
if (defined $comment) {
# ensure option fields are present
while ($#r < 5) {
push @r, "";
}
# add the comment field
push @r, $comment;
}
}
return scalar(@r) ? \@r : undef;
}
else {
# Old format
local $l = $_[0];
$l =~ s/#.*$//;
if ($l =~ /^(\S+)\s+(\S+)\s*(.*)/) {
return [ $1, $2, $3 ];
}
else {
return undef;
}
}
}
sub zones_columns
{
return &new_zones_format() ? 4 : 3;
}
# format a parsed row for display in list form
sub zones_row
{
if (&new_zones_format()) {
return ( $_[0], $_[1], $text{'zones_'.$_[2]} || $_[2], $_[6] );
}
else {
return @_;
}
}
sub zones_colnames
{
if (&new_zones_format()) {
return ( $text{'zones_0'}, $text{'zones_1new'}, $text{'zones_2new'},
# The option fields are not displayed in the main list.
# $text{'zones_3new'}, $text{'zones_4new'}, $text{'zones_5new'},
$text{'zones_6new'} );
}
else {
return ( $text{'zones_0'}, $text{'zones_1'}, $text{'zones_2'} );
}
}
sub zones_form
{
if (&new_zones_format()) {
# Shorewall 3 zones format
print "<tr> <td><b>$text{'zones_0'}</b></td>\n";
print "<td>",&ui_textbox("id", $_[0], 8),"</td>\n";
print "<td><b>$text{'zones_1new'}</b></td>\n";
print "<td>\n";
&zone_field("parent", $_[1], 0, 1);
print "</td> </tr>\n";
print "<td><b>$text{'zones_2new'}</b></td>\n";
print "<td>",&ui_select("type", $_[2],
[ [ "ipv4", $text{'zones_ipv4'} ],
[ "ipsec", $text{'zones_ipsec'} ],
[ "firewall", $text{'zones_firewall'} ] ]),"</td> </tr>\n";
print "<tr> <td><b>$text{'zones_3new'}</b></td>\n";
print "<td>",&ui_textbox("opts", $_[3], 50),"</td> </tr>\n";
print "<tr> <td><b>$text{'zones_4new'}</b></td>\n";
print "<td>",&ui_textbox("opts_in", $_[4], 50),"</td> </tr>\n";
print "<tr> <td><b>$text{'zones_5new'}</b></td>\n";
print "<td>",&ui_textbox("opts_out", $_[5], 50),"</td> </tr>\n";
print "<tr> <td><b>$text{'zones_6new'}</b></td>\n";
print "<td>",&ui_textbox("comment", $_[6], 50),"</td> </tr>\n";
}
else {
# Shorewall 2 zones format
print "<tr> <td><b>$text{'zones_0'}</b></td>\n";
print "<td><input name=id size=8 value='$_[0]'></td> </tr>\n";
print "<tr> <td><b>$text{'zones_1'}</b></td>\n";
print "<td><input name=name size=15 value='$_[1]'></td> </tr>\n";
print "<tr> <td><b>$text{'zones_2'}</b></td>\n";
print "<td><input name=desc size=70 value='$_[2]'></td> </tr>\n";
}
}
sub zones_validate
{
$in{'id'} =~ /^\S+$/ || &error($text{'zones_eid'});
&is_fw($in{'id'}) && &error($text{'zones_efwid'});
if (&new_zones_format()) {
# Parse new format
$in{'opts'} =~ /^\S*$/ || &error($text{'zones_eopts'});
$in{'opts_in'} =~ /^\S*$/ || &error($text{'zones_eopts_in'});
$in{'opts_out'} =~ /^\S*$/ || &error($text{'zones_eopts_out'});
if (!defined $in{'parent'} || $in{'parent'} eq "-") {
return ( $in{'id'}, $in{'type'}, $in{'opts'},
$in{'opts_in'}, $in{'opts_out'}, "# $in{'comment'}" );
}
else {
return ( $in{'id'}.":".$in{'parent'}, $in{'type'}, $in{'opts'},
$in{'opts_in'}, $in{'opts_out'}, "# $in{'comment'}" );
}
}
else {
# Parse old format
$in{'name'} =~ /^\S+$/ || &error($text{'zones_ename'});
$in{'desc'} =~ /\S/ || &error($text{'zones_edesc'});
return ( $in{'id'}, $in{'name'}, $in{'desc'} );
}
}
################################# interfaces ###################################
sub interfaces_row
{
return ( $_[1],
$_[0] eq '-' ? $text{'list_any'} : $_[0],
$_[2] eq 'detect' ? $text{'list_auto'} :
$_[2] eq '-' || $_[2] eq '' ? $text{'list_none'} : $_[2],
$_[3] ? $_[3] : $text{'list_none'} );
}
@interfaces_opts = ( 'dhcp', 'noping', 'filterping', 'routestopped', 'norfc1918',
'multi', 'routefilter', 'dropunclean', 'logunclean',
'blacklist', 'maclist', 'tcpflags', 'proxyarp' );
if (&version_atleast(3)) {
push(@interfaces_opts, "logmartians", "routeback", "arp_filter",
"arp_ignore", "nosmurfs", "detectnets", "upnp");
}
sub interfaces_form
{
print "<tr> <td><b>$text{'interfaces_0'}</b></td>\n";
print "<td><input name=iface size=6 value='$_[1]'></td>\n";
local @ztable = &read_table_file("zones", \&zones_parser);
print "<td><b>$text{'interfaces_1'}</b></td>\n";
print "<td>\n";
&zone_field("zone", $_[0], 0, 1);
print "</td> </tr>\n";
local $bmode = $_[2] eq 'detect' ? 2 :
$_[2] eq '-' || $_[2] eq '' ? 1 : 0;
print "<tr> <td><b>$text{'interfaces_2'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=broad_mode value=1 %s> %s\n",
$bmode == 1 ? "checked" : "", $text{'list_none'};
printf "<input type=radio name=broad_mode value=2 %s> %s\n",
$bmode == 2 ? "checked" : "", $text{'list_auto'};
printf "<input type=radio name=broad_mode value=0 %s>\n",
$bmode == 0 ? "checked" : "";
printf "<input name=broad size=50 value='%s'></td> </tr>\n",
$bmode == 0 ? $_[2] : "";
# options
local %opts = map { $_, 1 } split(/,/, $_[3]);
print "<tr> <td valign=top><b>$text{'interfaces_3'}</b></td> <td colspan=3>\n";
&options_input("opts", $_[3], \@interfaces_opts);
print "</td> </tr>\n";
}
sub interfaces_validate
{
$in{'iface'} =~ /^[a-z]+\d*(\.\d+)?$/ ||
$in{'iface'} =~ /^[a-z]+\+$/ || &error($text{'interfaces_eiface'});
$in{'broad_mode'} || $in{'broad'} =~ /^[0-9\.,]+$/ ||
&error($text{'interfaces_ebroad'});
return ( $in{'zone'}, $in{'iface'},
$in{'broad_mode'} == 2 ? 'detect' :
$in{'broad_mode'} == 1 ? '-' : $in{'broad'},
join(",", split(/\0/, $in{'opts'})) );
}
################################# policy #######################################
sub policy_row
{
return ( $_[0] eq 'all' ? $text{'list_any'} :
&is_fw($_[0]) ? $text{'list_fw'} : $_[0],
$_[1] eq 'all' ? $text{'list_any'} :
&is_fw($_[1]) ? $text{'list_fw'} : $_[1],
$_[2], $_[3] eq '-' || $_[3] eq '' ? $text{'list_none'} : $_[3],
$_[4] =~ /(\d+):(\d+)/ ? &text('policy_limit', "$1", "$2")
: $text{'list_none'} );
}
@policy_list = ( "ACCEPT", "DROP", "REJECT", "CONTINUE" );
sub policy_form
{
local $found;
print "<tr> <td><b>$text{'policy_0'}</b></td>\n";
print "<td>\n";
&zone_field("source", $_[0], 0);
print "</td>\n";
print "<td><b>$text{'policy_1'}</b></td>\n";
print "<td>\n";
&zone_field("dest", $_[1], 0);
print "</td> </tr>\n";
print "<tr> <td><b>$text{'policy_2'}</b></td>\n";
print "<td><select name=policy>\n";
$found = !$_[2];
foreach $p (@policy_list) {
printf "<option value=%s %s>%s\n",
$p, lc($p) eq lc($_[2]) ? "selected" : "", $p;
$found++ if (lc($p) eq lc($_[2]));
}
print "<option value=$_[2] selected>$_[2]\n" if (!$found);
print "</select></td>\n";
print "<td><b>$text{'policy_3'}</b></td>\n";
print "<td><select name=log>\n";
printf "<option value=- %s>%s\n",
$_[3] eq '-' || !$_[3] ? "selected" : "", "&lt;$text{'policy_nolog'}&gt;";
printf "<option value=ULOG %s>%s\n",
$_[3] eq 'ULOG' ? "selected" : "", "&lt;$text{'policy_ulog'}&gt;";
$found = !$_[3] || $_[3] eq '-' || $_[3] eq 'ULOG';
&foreign_require("syslog", "syslog-lib.pl");
foreach $l (&syslog::list_priorities()) {
printf "<option value=%s %s>%s\n",
$l, $_[3] eq $l ? "selected" : "", $l;
$found++ if ($_[3] eq $l);
}
print "<option value=$_[3] selected>$_[3]\n" if (!$found);
print "</select></td> </tr>\n";
local ($l, $b) = $_[4] =~ /(\d+):(\d+)/ ? ($1, $2) : ( );
print "<tr> <td><b>$text{'policy_4'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=limit_def value=1 %s> %s\n",
$l eq '' ? "checked" : "", $text{'list_none'};
printf "<input type=radio name=limit_def value=0 %s>\n",
$l eq '' ? "" : "checked";
print &text('policy_limit',
"<input name=limit size=5 value='$l'>",
"<input name=burst size=5 value='$b'>"),"</td> </tr>\n";
}
sub policy_validate
{
&is_fw($in{'source'}) && &is_fw($in{'dest'}) && &error($text{'policy_efw'});
if (!$in{'limit_def'}) {
$in{'limit'} =~ /^\d+$/ || &error($text{'policy_elimit'});
$in{'burst'} =~ /^\d+$/ || &error($text{'policy_eburst'});
}
return ( $in{'source'}, $in{'dest'}, $in{'policy'}, $in{'log'},
$in{'limit_def'} ? ( ) : ( "$in{'limit'}:$in{'burst'}" ) );
}
################################# rules #######################################
sub rules_row
{
return ( $_[0] =~ /^(\S+):/ ? "$1" : $_[0],
&is_fw($_[1]) ? $text{'list_fw'} :
$_[1] eq 'all' ? $text{'list_any'} :
$config{'display_zone_descriptions'} == 0 ? $_[1] :
$_[1] =~ /^([^:]+):(\S+)$/ ?
&text('rules_hosts', &convert_zone("$1"), &nice_host_list("$2")) :
&text('rules_zone', &convert_zone($_[1])),
&is_fw($_[2]) ? $text{'list_fw'} :
$_[2] eq 'all' ? $text{'list_any'} :
$_[2] =~ /^\d+$/ ? &text('rules_rport', $_[2]) :
$config{'display_zone_descriptions'} == 0 ? $_[2] :
$_[2] =~ /^([^:]+):(\S+)$/ ?
&text('rules_hosts', &convert_zone("$1"), &nice_host_list("$2")) :
&text('rules_zone', &convert_zone($_[2])),
$_[3] eq 'all' ? $text{'list_any'} :
$_[3] eq 'related' ? $text{'rules_related'} : uc($_[3]),
$_[3] eq 'all' || $_[3] eq 'related' ? "" :
$_[5] eq '-' || $_[5] eq '' ? $text{'list_any'} : $_[5],
$_[4] eq '-' || $_[4] eq '' ? "" : $_[4],
&version_atleast(1, 4, 7) ? (
$_[7] eq "-" ? "" : $_[7],
$_[8] eq "-" ? "" : $_[8] ) :
( )
);
}
@rules_actions = ( 'ACCEPT', 'DROP', 'REJECT', 'DNAT', 'DNAT-', 'REDIRECT' );
if (&version_atleast(2, 0, 0)) {
push(@rules_actions, 'CONTINUE');
push(@rules_actions, 'ACCEPT+');
push(@rules_actions, 'NONAT');
push(@rules_actions, 'REDIRECT-');
push(@rules_actions, 'LOG');
}
if (&version_atleast(3)) {
push(@rules_actions, 'DNAT-');
push(@rules_actions, 'SAME');
push(@rules_actions, 'SAME-');
push(@rules_actions, 'QUEUE');
}
@rules_protos = ( 'all', 'related', 'tcp', 'udp', 'icmp' );
sub rules_form
{
local $found;
local @ztable = &read_table_file("zones", \&zones_parser);
local ($action, $log) = split(/:/, $_[0]);
local $macroarg;
if ($action =~ /^(.*)\/(.*)$/) {
$action = $1;
$macroarg = $2;
}
# Rule action
print "<tr> <td><b>$text{'rules_0'}</b></td>\n";
print "<td colspan=3><select name=action>\n";
$found = !$_[0];
foreach $a ((sort { $a cmp $b } @rules_actions),
"-------- Actions --------",
&list_standard_actions(),
(&version_atleast(3) ? ( "-------- Macros --------",
&list_standard_macros() ) : ( ) )) {
printf "<option value=%s %s>%s\n",
$a, $action eq $a ? "selected" : "", $a;
$found++ if ($action eq $a);
}
print "<option value=$action selected>$action\n" if (!$found);
print "</select>\n";
# Logging level
print "<b>$text{'rules_log'}</b> <select name=log>\n";
printf "<option value='' %s>%s\n",
!$log ? "selected" : "", "&lt;$text{'rules_nolog'}&gt;";
printf "<option value=ULOG %s>%s\n",
$log eq 'ULOG' ? "selected" : "", "&lt;$text{'policy_ulog'}&gt;";
$found = !$log || $log eq '-' || $log eq 'ULOG';
&foreign_require("syslog", "syslog-lib.pl");
foreach $l (&syslog::list_priorities()) {
printf "<option value=%s %s>%s\n",
$l, $log eq $l ? "selected" : "", $l;
$found++ if ($log eq $l);
}
print "<option value=$log selected>$log\n" if (!$found);
print "</select></td> </tr>\n";
if (&version_atleast(3)) {
print "<tr> <td valign=top><b>$text{'rules_macro'}</b></td>\n";
print "<td colspan=3 nowrap>\n";
print &ui_select("macro", $macroarg,
[ [ "", "&lt;$text{'rules_none2'}&gt;" ],
map { [ $_ ] } (sort { $a cmp $b } @rules_actions) ],
1, 0, $macroarg);
print "</td> </tr>\n";
}
# Source zone and hosts
local ($zone, $host) = split(/:/, $_[1], 2);
print "<tr> <td valign=top><b>$text{'rules_1z'}</b></td>\n";
print "<td colspan=3 nowrap>\n";
$found = &zone_field("source", $zone, 1);
printf "<input name=sother size=10 value='%s'>\n",
$found ? "" : $zone;
print "<br><b>$text{'rules_inzone'}</b>\n";
printf "<input type=checkbox name=sinzone_def value=1 %s> %s\n",
$host ? "checked" : "", $text{'rules_addr'};
printf "<input name=sinzone size=50 value='%s'></td> </tr>\n",
join(" ", split(/,/, $host));
($zone, $host) = split(/:/, $_[2], 2);
print "<tr> <td valign=top><b>$text{'rules_2z'}</b></td>\n";
print "<td colspan=3 nowrap>\n";
$found = &zone_field("dest", $zone, 1);
printf "<input name=dother size=10 value='%s'>\n",
$found ? "" : $zone;
print "<br><b>$text{'rules_inzone'}</b>\n";
printf "<input type=checkbox name=dinzone_def value=1 %s> %s\n",
$host ? "checked" : "", $text{'rules_addr'};
printf "<input name=dinzone size=50 value='%s'>\n",
join(" ", split(/,/, $host));
print "<br>$text{'rules_dnat_dest'}</td> </tr>\n";
print "<tr> <td><b>$text{'rules_3'}</b></td>\n";
print "<td colspan=3><select name=proto>\n";
$found = !$_[3];
foreach $p (@rules_protos) {
printf "<option value=%s %s>%s\n",
$p, $p eq $_[3] ? "selected" : "",
$p eq 'all' ? "&lt;$text{'list_any'}&gt;" :
$p eq 'related' ? "&lt;$text{'rules_related'}&gt;" : uc($p);
$found++ if ($p eq $_[3]);
}
printf "<option value='' %s>%s\n",
$found ? "" : "selected", $text{'list_other'};
print "</select>\n";
printf "<input name=pother size=5 value='%s'></td> </tr>\n",
$found ? "" : $_[3];
print "<tr> <td><b>$text{'rules_4'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=sport_def value=1 %s> %s\n",
$_[5] eq '' || $_[5] eq '-' ? "checked" : "", $text{'list_any'};
printf "<input type=radio name=sport_def value=0 %s> %s\n",
$_[5] eq '' || $_[5] eq '-' ? "" : "checked", $text{'rules_ranges'};
printf "<input name=sport size=30 value='%s'></td> </tr>\n",
$_[5] eq '' || $_[5] eq '-' ? "" : join(" ", split(/,/, $_[5]));
print "<tr> <td><b>$text{'rules_5'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=dport_def value=1 %s> %s\n",
$_[4] eq '' || $_[4] eq '-' ? "checked" : "", $text{'list_any'};
printf "<input type=radio name=dport_def value=0 %s> %s\n",
$_[4] eq '' || $_[4] eq '-' ? "" : "checked", $text{'rules_ranges'};
printf "<input name=dport size=30 value='%s'>\n",
$_[4] eq '' || $_[4] eq '-' ? "" : join(" ", split(/,/, $_[4]));
print "<br>$text{'rules_dnat_port'}</td> </tr>\n";
print "<tr> <td><b>$text{'rules_dnat'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=dnat_def value=1 %s> %s\n",
$_[6] eq '' || $_[6] eq '-' ? "checked" : "", $text{'list_none'};
printf "<input type=radio name=dnat_def value=0 %s>\n",
$_[6] eq '' || $_[6] eq '-' ? "" : "checked";
printf "<input name=dnat size=30 value='%s'></td> </tr>\n",
$_[6] eq '' || $_[6] eq '-' ? "" : $_[6];
if (&version_atleast(1, 4, 7)) {
print "<tr> <td><b>$text{'rules_rate'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=rate_def value=1 %s> %s\n",
$_[7] eq "-" || !$_[7] ? "checked" : "", $text{'rules_norate'};
printf "<input type=radio name=rate_def value=0 %s>\n",
$_[7] eq "-" || !$_[7] ? "" : "checked";
printf "<input name=rate size=15 value='%s'></td> </tr>\n",
$_[7] eq "-" ? "" : $_[7];
print "<tr> <td><b>$text{'rules_set'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=set_def value=1 %s> %s\n",
$_[8] eq "-" || !$_[8] ? "checked" : "", $text{'rules_noset'};
printf "<input type=radio name=set_def value=0 %s>\n",
$_[8] eq "-" || !$_[8] ? "" : "checked";
printf "<input name=set size=15 value='%s'></td> </tr>\n",
$_[8] eq "-" ? "" : $_[8];
}
}
sub rules_validate
{
$in{'action'} !~ /----/ || &error($text{'rules_eaction'});
$in{'source'} || $in{'sother'} =~ /^\S+$/ || &error($text{'rules_esother'});
!$in{'sinzone_def'} || $in{'sinzone'} =~ /\S/ || &error($text{'rules_esinzone'});
$in{'dest'} || $in{'dother'} =~ /^\S+$/ || &error($text{'rules_edother'});
!$in{'dinzone_def'} || $in{'dinzone'} =~ /\S/ || &error($text{'rules_edinzone'});
$in{'proto'} || $in{'pother'} =~ /^\S+$/ || &error($text{'rules_epother'});
$in{'sport_def'} || $in{'sport'} =~ /\S/ || &error($text{'rules_esport'});
$in{'dport_def'} || $in{'dport'} =~ /\S/ || &error($text{'rules_edport'});
$in{'dnat_def'} || &check_ipaddress($in{'dnat'}) ||
($in{'dnat'} =~ /^([0-9\.]+):([0-9\.]+)$/ &&
&check_ipaddress("$1") && &check_ipaddress("$2")) ||
($in{'dnat'} =~ /^\!([0-9\.]+)$/ && &check_ipaddress("$1")) ||
($in{'dnat'} =~ /^\!([0-9\.]+),([0-9\.]+)(\/\d+)?$/ &&
&check_ipaddress("$1") && &check_ipaddress("$2")) ||
($in{'dnat'} =~ /^\!([0-9\.,]+)$/ &&
scalar(grep { &check_ipaddress($_) } split(/,/, $1))) ||
&error($text{'rules_ednat'});
$in{'action'} ne 'DNAT' && $in{'action'} ne 'REDIRECT' && $in{'action'} ne 'DNAT-' &&
!$in{'dnat_def'} && &error($text{'rules_ednat2'});
$in{'sinzone'} =~ s/\s+/,/g;
$in{'dinzone'} =~ s/\s+/,/g;
$in{'sport'} =~ s/\s+/,/g;
$in{'dport'} =~ s/\s+/,/g;
if (&version_atleast(1, 4, 7)) {
$in{'rate_def'} || $in{'rate'} =~ /^\S+$/ ||
&error($text{'rules_erate'});
$in{'set_def'} || $in{'set'} =~ /^\S+$/ ||
&error($text{'rules_eset'});
}
if ($in{'macro'} && &indexof($in{'action'}, &list_standard_macros()) >= 0) {
$in{'action'} .= "/".$in{'macro'};
$in{'proto'} = $in{'pother'} = undef;
}
return ( $in{'log'} ? "$in{'action'}:$in{'log'}" : $in{'action'},
($in{'source'} || $in{'sother'}).
($in{'sinzone_def'} ? ":$in{'sinzone'}" : ""),
($in{'dest'} || $in{'dother'}).
($in{'dinzone_def'} ? ":$in{'dinzone'}" : ""),
$in{'proto'} || $in{'pother'},
$in{'dport_def'} ? "-" : $in{'dport'},
$in{'sport_def'} ? "-" : $in{'sport'},
$in{'dnat_def'} ? ( "-" ) : ( $in{'dnat'} ),
&version_atleast(1, 4, 7) ? (
( $in{'rate_def'} ? "-" : $in{'rate'} ),
( $in{'set_def'} ? "-" : $in{'set'} )
) : ( )
);
}
sub rules_columns
{
return &version_atleast(1, 4, 7) ? 6 : 8;
}
################################# tos #########################################
%tos_map = ( 0, 'Normal-Service',
2, 'Minimize-Cost',
4, 'Maximize-Reliability',
8, 'Maximize-Throughput',
16, 'Minimize-Delay' );
@tos_protos = ( 'tcp', 'udp', 'icmp' );
sub tos_row
{
return ( &is_fw($_[0]) ? $text{'list_fw'} :
$_[0] eq 'all' ? $text{'list_any'} :
$_[0] =~ /^([^:]+):(\S+)$/ ? &text('rules_hosts', "$1", "$2") :
&text('rules_zone', $_[0]),
&is_fw($_[1]) ? $text{'list_fw'} :
$_[1] eq 'all' ? $text{'list_any'} :
$_[1] =~ /^([^:]+):(\S+)$/ ? &text('rules_hosts', "$1", "$2") :
&text('rules_zone', $_[1]),
uc($_[2]),
$_[3] eq '-' || $_[3] eq '' ? $text{'list_any'} : $_[3],
$_[4] eq '-' || $_[4] eq '' ? $text{'list_any'} : $_[4],
$tos_map{$_[5]} || $_[5] );
}
sub tos_form
{
local ($zone, $host) = split(/:/, $_[0], 2);
print "<tr> <td valign=top><b>$text{'tos_0z'}</b></td>\n";
print "<td colspan=3 nowrap>\n";
$found = &zone_field("source", $zone, 1);
printf "<input name=sother size=10 value='%s'>\n",
$found ? "" : $zone;
print "<br><b>$text{'rules_inzone'}</b>\n";
printf "<input type=checkbox name=sinzone_def value=1 %s> %s\n",
$host ? "checked" : "", $text{'rules_addr'};
printf "<input name=sinzone size=50 value='%s'></td> </tr>\n",
join(" ", split(/,/, $host));
($zone, $host) = split(/:/, $_[1], 2);
print "<tr> <td valign=top><b>$text{'tos_1z'}</b></td>\n";
print "<td colspan=3 nowrap>\n";
$found = &zone_field("dest", $zone, 1);
printf "<input name=dother size=10 value='%s'>\n",
$found ? "" : $zone;
print "<br><b>$text{'rules_inzone'}</b>\n";
printf "<input type=checkbox name=dinzone_def value=1 %s> %s\n",
$host ? "checked" : "", $text{'rules_addr'};
printf "<input name=dinzone size=50 value='%s'></td> </tr>\n",
join(" ", split(/,/, $host));
print "<tr> <td><b>$text{'tos_2'}</b></td>\n";
print "<td><select name=proto>\n";
$found = !$_[2];
foreach $p (@tos_protos) {
printf "<option value=%s %s>%s\n",
$p, $p eq $_[2] ? "selected" : "", uc($p);
$found++ if ($p eq $_[2]);
}
printf "<option value='' %s>%s\n",
$found ? "" : "selected", $text{'list_other'};
print "</select>\n";
printf "<input name=pother size=5 value='%s'></td> </tr>\n",
$found ? "" : $_[2];
print "<tr> <td><b>$text{'tos_3'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=sport_def value=1 %s> %s\n",
$_[3] eq '' || $_[3] eq '-' ? "checked" : "", $text{'list_any'};
printf "<input type=radio name=sport_def value=0 %s> %s\n",
$_[3] eq '' || $_[3] eq '-' ? "" : "checked", $text{'rules_ranges'};
printf "<input name=sport size=30 value='%s'></td> </tr>\n",
$_[3] eq '' || $_[3] eq '-' ? "" : join(" ", split(/,/, $_[3]));
print "<tr> <td><b>$text{'tos_4'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=dport_def value=1 %s> %s\n",
$_[4] eq '' || $_[4] eq '-' ? "checked" : "", $text{'list_any'};
printf "<input type=radio name=dport_def value=0 %s> %s\n",
$_[4] eq '' || $_[4] eq '-' ? "" : "checked", $text{'rules_ranges'};
printf "<input name=dport size=30 value='%s'></td> </tr>\n",
$_[4] eq '' || $_[4] eq '-' ? "" : join(" ", split(/,/, $_[4]));
print "<tr> <td><b>$text{'tos_5'}</b></td>\n";
print "<td><select name=tos>\n";
$found = !$_[5];
foreach $t (sort { $a <=> $b } keys %tos_map) {
printf "<option value=%s %s>%s\n",
$t, $_[5] == $t ? "selected" : "", $tos_map{$t};
$found++ if ($_[5] == $t);
}
print "<option value=$_[5] selected>$_[5]\n" if (!$found);
print "</select></td> </tr>\n";
}
sub tos_validate
{
$in{'source'} || $in{'sother'} =~ /^\S+$/ || &error($text{'rules_esother'});
!$in{'sinzone_def'} || $in{'sinzone'} =~ /\S/ || &error($text{'rules_esinzone'});
$in{'dest'} || $in{'dother'} =~ /^\S+$/ || &error($text{'rules_edother'});
!$in{'dinzone_def'} || $in{'dinzone'} =~ /\S/ || &error($text{'rules_edinzone'});
$in{'proto'} || $in{'pother'} =~ /^\S+$/ || &error($text{'rules_epother'});
$in{'sport_def'} || $in{'sport'} =~ /\S/ || &error($text{'rules_esport'});
$in{'dport_def'} || $in{'dport'} =~ /\S/ || &error($text{'rules_edport'});
return ( ($in{'source'} || $in{'sother'}).
($in{'sinzone_def'} ? ":$in{'sinzone'}" : ""),
($in{'dest'} || $in{'dother'}).
($in{'dinzone_def'} ? ":$in{'dinzone'}" : ""),
$in{'proto'} || $in{'pother'},
$in{'sport_def'} ? "-" : join(",", split(/\s+/, $in{'sport'})),
$in{'dport_def'} ? "-" : join(",", split(/\s+/, $in{'dport'})),
$in{'tos'} );
}
################################# masq #########################################
sub masq_row
{
return ( $_[0] =~ /^(\S+):(\S+)$/ ? &text('masq_in', "$1", "$2") : $_[0],
$_[1] =~ /^[0-9\.\/]+$/ ? $_[1] :
$_[1] =~ /^([a-z]+\d*)\!(\S+)$/ ? &text('masq_ex', "$1", "$2") :
&text('masq_iface', $_[1]),
$_[2] eq "" ? "" : $_[2] );
}
sub masq_columns
{
return 3;
}
sub masq_form
{
local ($iface, $net) = split(/:/, $_[0], 2);
print "<tr> <td><b>$text{'masq_0'}</b></td> <td colspan=3>\n";
&iface_field("iface", $iface);
printf "<input type=checkbox name=net_def value=1 %s> %s\n",
$net ? "checked" : "", $text{'masq_net'};
print "<input name=net size=20 value='$net'></td> </tr>\n";
local ($mnet, $miface, $mode);
if ($_[1] =~ /^[0-9\.\/]+$/) {
$mnet = $_[1];
$mode = 0;
}
elsif ($_[1] =~ /^([a-z]+\d*)\!(\S+)$/) {
$miface = $1;
$mnet = $2;
$mode = 1;
}
else {
$miface = $_[1];
$mode = 1;
}
print "<tr> <td valign=top><b>$text{'masq_1'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=mode value=0 %s> %s\n",
$mode == 0 ? "checked" : "", $text{'masq_mode0'};
printf "<input name=mnet size=20 value='%s'><br>\n",
$mode == 0 ? $mnet : "";
printf "<input type=radio name=mode value=1 %s> %s\n",
$mode == 1 ? "checked" : "", $text{'masq_mode1'};
&iface_field("miface", $mode == 1 ? $miface : undef);
printf "<input type=checkbox name=mnet_def value=1 %s> %s\n",
$mode == 1 && $mnet ? "checked" : "", $text{'masq_except'};
printf "<input name=mnete size=20 value='%s'>\n",
$mode == 1 ? join(" ", split(/,/, $mnet)) : "";
print "</td> </tr>\n";
print "<tr> <td><b>$text{'masq_2'}</b></td> <td colspan=3>\n";
printf "<input type=radio name=snat_def value=1 %s> %s\n",
$_[2] eq '' || $_[2] eq '-' ? "checked" : "", $text{'list_none'};
printf "<input type=radio name=snat_def value=0 %s>\n",
$_[2] eq '' || $_[2] eq '-' ? "" : "checked";
printf "<input name=snat size=15 value='%s'></td> </tr>\n",
$_[2] eq '' || $_[2] eq '-' ? "" : $_[2];
if (&version_atleast(3)) {
print "<tr> <td><b>$text{'masq_3'}</b></td> <td colspan=3>\n";
print &ui_radio("proto_def", $_[3] ? 0 : 1,
[ [ 1, $text{'masq_any'} ],
[ 0, " " ] ]),"\n",
&ui_select("proto", $_[3],
[ map { [ $_, uc($_) ] } &list_protocols() ],
1, 0, $_[3] ? 1 : 0),"</td> </tr>\n";
print "<tr> <td><b>$text{'masq_4'}</b></td> <td colspan=3>\n";
print &ui_opt_textbox("ports", $_[4], 40, $text{'masq_all'}),
"</td> </tr>\n";
print "<tr> <td><b>$text{'masq_5'}</b></td> <td colspan=3>\n";
print &ui_opt_textbox("ipsec", $_[5], 40, $text{'default'}),
"</td> </tr>\n";
}
}
sub masq_validate
{
!$in{'net_def'} || $in{'net'} =~ /^\S+$/ || &error($text{'masq_enet'});
if ($in{'mode'} == 0) {
$in{'mnet'} =~ /^\S+$/ || &error($text{'masq_emnet'});
}
else {
!$in{'mnet_def'} || $in{'mnete'} =~ /\S/ ||&error($text{'masq_emnete'});
}
$in{'snat_def'} || &check_ipaddress($in{'snat'}) || &error($text{'masq_esnat'});
local @rv = ( $in{'iface'}.(!$in{'net_def'} ? "" : ":$in{'net'}"),
$in{'mode'} == 0 ? $in{'mnet'} :
$in{'miface'}.(!$in{'mnet_def'} ? "" :
"!".join(",", split(/\s+/, $in{'mnete'}))),
$in{'snat_def'} ? ( "" ) : ( $in{'snat'} ) );
if (&version_atleast(3)) {
push(@rv, $in{'proto_def'} ? "" : $in{'proto'});
if ($in{'ports_def'}) {
push(@rv, "");
}
else {
$in{'ports'} =~ /^\S+$/ || &error($text{'masq_eports'});
push(@rv, $in{'ports'});
}
if ($in{'ipsec_def'}) {
push(@rv, "");
}
else {
$in{'ipsec'} =~ /^\S+$/ || &error($text{'masq_eipsec'});
push(@rv, $in{'ipsec'});
}
}
return @rv;
}
################################# nat #########################################
sub nat_form
{
print "<tr> <td><b>$text{'nat_0'}</b></td>\n";
print "<td><input name=ext size=15 value='$_[0]'></td>\n";
print "<td><b>$text{'nat_1'}</b></td>\n";
print "<td>";
if (&version_atleast(1, 3, 14)) {
local ($iface, $virt) = split(/:/, $_[1]);
&iface_field("iface", $iface);
print "<b>$text{'nat_virt'}</b>\n";
print "<input name=virt size=3 value='$virt'>\n";
print "</td> </tr>\n";
}
else {
&iface_field("iface", $_[1]);
print "</td> </tr>\n";
}
print "<tr> <td><b>$text{'nat_2'}</b></td>\n";
print "<td><input name=int size=15 value='$_[2]'></td> </tr>\n";
local $all = $_[3] eq '-' || $_[3] eq '' || $_[3] =~ /yes/i;
print "<tr> <td><b>$text{'nat_all'}</b></td>\n";
printf "<td><input type=radio name=all value=1 %s> %s\n",
$all ? "checked" : "", $text{'yes'};
printf "<input type=radio name=all value=0 %s> %s</td>\n",
$all ? "" : "checked", $text{'no'};
local $local = $_[4] =~ /yes/i;
print "<td><b>$text{'nat_local'}</b></td>\n";
printf "<td><input type=radio name=local value=1 %s> %s\n",
$local ? "checked" : "", $text{'yes'};
printf "<input type=radio name=local value=0 %s> %s</td> </tr>\n",
$local ? "" : "checked", $text{'no'};
}
sub nat_validate
{
&check_ipaddress($in{'ext'}) || &error($text{'nat_eext'});
&check_ipaddress($in{'int'}) || &error($text{'nat_eint'});
$in{'virt'} =~ /^\d*$/ || &error($text{'nat_evirt'});
return ( $in{'ext'},
$in{'virt'} ne '' ? $in{'iface'}.":".$in{'virt'} : $in{'iface'},
$in{'int'},
$in{'all'} ? "yes" : "no",
$in{'local'} ? "yes" : "no" );
}
################################# proxyarp #######################################
sub proxyarp_row
{
return ( $_[0],
$_[1] eq '-' || $_[1] eq '' ? $text{'list_auto'} : $_[1],
$_[2],
&version_atleast(2, 0, 0) ?
( $_[4] =~ /yes/i ? $text{'yes'} : $text{'no'} ) : ( ) );
}
sub proxyarp_form
{
print "<tr> <td><b>$text{'proxyarp_0'}</b></td>\n";
print "<td><input name=addr size=15 value='$_[0]'></td>\n";
print "<td><b>$text{'proxyarp_1'}</b></td>\n";
printf "<td><input type=radio name=int_def value=1 %s> %s\n",
$_[1] eq '-' || $_[1] eq '' ? "checked" : "", $text{'list_auto'};
printf "<input type=radio name=int_def value=0 %s>\n",
$_[1] eq '-' || $_[1] eq '' ? "" : "checked";
&iface_field("int", $_[1] eq '-' ? undef : $_[1]);
print "</td> </tr>";
local $have = $_[3] =~ /yes/i;
print "<tr> <td><b>$text{'proxyarp_have'}</b></td>\n";
printf "<td><input type=radio name=have value=1 %s> %s\n",
$have ? "checked" : "", $text{'yes'};
printf "<input type=radio name=have value=0 %s> %s</td>\n",
$have ? "" : "checked", $text{'no'};
print "<td><b>$text{'proxyarp_2'}</b></td>\n";
print "<td>";
&iface_field("ext", $_[2]);
print "</td> </tr>";
if (&version_atleast(2, 0, 0)) {
local $pers = $_[4] =~ /yes/i;
print "<tr> <td><b>$text{'proxyarp_pers'}</b></td>\n";
printf "<td><input type=radio name=pers value=1 %s> %s\n",
$pers ? "checked" : "", $text{'yes'};
printf "<input type=radio name=pers value=0 %s> %s</td>\n",
$pers ? "" : "checked", $text{'no'};
}
}
sub proxyarp_validate
{
&check_ipaddress($in{'addr'}) || &error($text{'proxyarp_eaddr'});
return ( $in{'addr'},
$in{'int_def'} ? "-" : $in{'int'},
$in{'ext'},
$in{'have'} ? "yes" : "no",
&version_atleast(2, 0, 0) ? ( $in{'pers'} ? "yes" : "no" ) : ( )
);
}
sub proxyarp_columns
{
return &version_atleast(2, 0, 0) ? 4 : 3;
}
################################ routestopped ##################################
sub routestopped_row
{
return ( $_[0], $_[1],
$_[2] eq '-' || $_[2] eq '' ? $text{'default'} : $_[2],
$_[3] eq '-' || $_[3] eq '' ? $text{'tunnels_gnone'} : $_[3] );
}
sub routestopped_columns
{
return 2;
}
@routestopped_options = ( "routeback", "source", "dest", "critical" );
sub routestopped_form
{
print "<tr> <td valign=top><b>$text{'routestopped_0'}</b></td>\n";
print "<td valign=top>";
&iface_field("iface", $_[0]);
print "</td>\n";
local $none = $_[1] eq '' || $_[1] eq '-' || $_[1] eq '0.0.0.0/0';
print "<td valign=top><b>$text{'routestopped_1'}</b></td>\n";
printf "<td><input type=radio name=addr_def value=1 %s> %s<br>\n",
$none ? "checked" : "", $text{'routestopped_all'};
printf "<input type=radio name=addr_def value=0 %s> %s<br>\n",
$none ? "" : "checked", $text{'routestopped_list'};
print "<textarea name=addr rows=5 cols=20>",
$none ? "" : join("\n", split(/,/, $_[1])),
"</textarea></td> </tr>\n";
if (&version_atleast(3)) {
print "<tr> <td valign=top><b>$text{'routestopped_2'}</b></td>\n";
print "<td colspan=3>\n";
&options_input("opts", $_[2], \@routestopped_options);
print "</td> </tr>\n";
}
}
sub routestopped_validate
{
$in{'addr_def'} || $in{'addr'} =~ /\S/ || &error($text{'routestopped_eaddr'});
return ( $in{'iface'},
$in{'addr_def'} ? "-" : join(",", split(/\s+/, $in{'addr'})),
join(",", split(/\0/, $in{'opts'})) );
}
################################ tunnels ##################################
sub tunnels_row
{
local $tt = $_[0];
$tt =~ s/^(openvpn|generic):.*$/$1/;
return ( $text{'tunnels_'.$tt} || $tt,
$_[1] eq '-' || $_[1] eq '' ? $text{'routestopped_all'} : $_[1],
$_[2], $_[3] );
}
sub tunnels_form
{
print "<tr> <td><b>$text{'tunnels_0'}</b></td>\n";
print "<td><select name=type>\n";
local $tt;
local $found = !$_[0];
local $ttype = $_[0];
local $tport;
if ($ttype =~ s/^(openvpn|generic):(.*)$/$1/) {
$tport = $2;
}
foreach $tt ('ipsec', 'ipsecnat',
(&version_atleast(2, 0, 0) ? ( 'ipsec:noah', 'ipsecnat:noah' )
: ( )),
'ip', 'gre', 'pptpclient', 'pptpserver', 'generic',
(&version_atleast(1, 3, 14) ? ( 'openvpn' ) : ( )) ) {
printf "<option value=%s %s>%s\n",
$tt, $ttype eq $tt ? "selected" : "",
$text{'tunnels_'.$tt.'_l'} || $text{'tunnels_'.$tt};
$found++ if ($ttype eq $tt);
}
print "<option value=$ttype selected>",uc($ttype),"\n" if (!$found);
print "</select>\n";
print "<input name=tport size=10 value='$tport'>\n";
print "</td>\n";
print "<tr> <td><b>$text{'tunnels_1'}</b></td>\n";
print "<td>";
&zone_field("zone", $_[1], 0, 0);
print "</td> </tr>\n";
local $none = $_[2] eq '' || $_[2] eq '-';
print "<tr> <td><b>$text{'tunnels_2'}</b></td> <td valign=top>\n";
printf "<input type=radio name=gateway_def value=1 %s> %s\n",
$none ? "checked" : "", $text{'default'};
printf "<input type=radio name=gateway_def value=0 %s> %s\n",
$none ? "" : "checked", $text{'tunnels_sel'};
printf "<input name=gateway size=20 value='%s'></td> </tr>\n", $_[2];
local $none = $_[2] eq '' || $_[2] eq '-';
print "<tr> <td><b>$text{'tunnels_3'}</b></td> <td valign=top>\n";
printf "<input type=radio name=gzones_def value=1 %s> %s\n",
$none ? "checked" : "", $text{'tunnels_gnone'};
printf "<input type=radio name=gzones_def value=0 %s> %s\n",
$none ? "" : "checked", $text{'tunnels_gsel'};
printf "<input name=gzones size=50 value='%s'></td> </tr>\n",
join(" ", split(/,/, $_[3]));
}
sub tunnels_validate
{
$in{'gateway_def'} || &check_ipaddress($in{'gateway'}) ||
($in{'gateway'} =~ /^(\S+)\/(\d+)$/ && &check_ipaddress($1)) ||
&error($text{'tunnels_egateway'});
if ($in{'type'} eq "openvpn") {
$in{'tport'} =~ /^\d*$/ || &error($text{'tunnels_eopenvpn'});
$in{'type'} .= ":".$in{'tport'} if ($in{'tport'});
}
elsif ($in{'type'} eq 'generic') {
$in{'tport'} =~ /^\S+$/ || &error($text{'tunnels_egeneric'});
$in{'type'} .= ":".$in{'tport'};
}
return ( $in{'type'}, $in{'zone'},
$in{'gateway_def'} ? '-' : $in{'gateway'},
$in{'gzones_def'} ? '-' : join(",", split(/\s+/, $in{'gzones'})) );
}
################################ hosts ##################################
sub hosts_row
{
return ( $_[0], $_[1] =~ /^(\S+):(\S+)$/ ? ( $1, $2 ) : ( undef, undef ) );
}
@host_options = ( "maclist", "routeback" );
if (&version_atleast(3)) {
push(@host_options, "norfc1918", "blacklist", "tcpflags",
"nosmurfs", "ipsec");
}
sub hosts_form
{
print "<tr> <td><b>$text{'hosts_0'}</b></td>\n";
print "<td>";
&zone_field("zone", $_[0], 0, 2);
print "</td> </tr>\n";
local ($iface, $net) = split(/:/, $_[1]);
print "<tr> <td><b>$text{'hosts_1'}</b></td>\n";
print "<td>";
&iface_field("iface", $iface);
print "</td> </tr>\n";
print "<tr> <td><b>$text{'hosts_2'}</b></td>\n";
print "<td><input name=net size=50 value='$net'></td> </tr>\n";
print "<tr> <td valign=top><b>$text{'hosts_opts'}</b></td> <td>\n";
&options_input("opts", $_[2], \@host_options);
print "</td> </tr>\n";
}
sub hosts_validate
{
&check_ipaddress($in{'net'}) ||
$in{'net'} =~ /^(\S+)\/(\d+)$/ && &check_ipaddress($1) ||
&error($text{'hosts_enet'});
return ( $in{'zone'}, $in{'iface'}.":".$in{'net'},
join(",", split(/\0/, $in{'opts'})) );
}
################################ blacklist ##################################
sub blacklist_row
{
return ( $_[0], uc($_[1]) || $text{'blacklist_any'},
$_[2] || $text{'blacklist_any'} );
}
@blacklist_protos = ( undef, 'tcp', 'udp', 'icmp' );
sub blacklist_form
{
print "<tr> <td valign=top><b>$text{'blacklist_host'}</b></td> <td colspan=3>\n";
local ($mode, $ipset, $mac, $ip);
if ($_[0] =~ /^\+(.*)/) {
$mode = 2; $ipset = $1;
}
elsif ($_[0] =~ /^\~(.*)$/) {
$mode = 1; $mac = $1;
}
else {
$mode = 0; $ip = $_[0];
}
print &ui_radio("host_def", $mode,
[ [ 0, &text('hosts_ip', &ui_textbox("host", $ip, 30))."<br>" ],
[ 1, &text('hosts_mac', &ui_textbox("mac", $mac, 30))."<br>" ],
&version_atleast(3) ?
( [ 2, &text('hosts_ipset', &ui_textbox("ipset", $ipset, 15)) ] ) : ( ),
]);
print "</td> </tr>\n";
print "<tr> <td><b>$text{'blacklist_proto'}</b></td>\n";
print "<td colspan=3><select name=proto>\n";
$found = !$_[1];
foreach $p (@blacklist_protos) {
printf "<option value='%s' %s>%s\n",
$p, $p eq $_[1] ? "selected" : "",
$p eq '' ? "&lt;$text{'list_any'}&gt;" : uc($p);
$found++ if ($p eq $_[1]);
}
printf "<option value='*' %s>%s\n",
$found ? "" : "selected", $text{'list_other'};
print "</select>\n";
printf "<input name=pother size=5 value='%s'></td> </tr>\n",
$found ? "" : $_[1];
print "<tr> <td><b>$text{'blacklist_ports'}</b></td>\n";
print "<td colspan=3><input name=ports size=20 value='$_[2]'></td> </tr>\n";
}
sub blacklist_validate
{
local $host;
if ($in{'host_def'} == 0) {
&check_ipaddress($in{'host'}) ||
$in{'host'} =~ /^(\S+)\/(\d+)$/ && &check_ipaddress($1) ||
&error($text{'blacklist_ehost'});
$host = $in{'host'};
}
elsif ($in{'host_def'} == 1) {
$in{'mac'} =~ s/:/-/g;
$in{'mac'} =~ /^[0-9a-f]{2}(\-[0-9a-f]{2}){5}$/ ||
&error($text{'blacklist_emac'});
$host = "~".$in{'mac'};
}
elsif ($in{'host_def'} == 2) {
$in{'ipset'} =~ /^\S+$/ || &error($text{'blacklist_eipset'});
$host = "+".$in{'ipset'};
}
local $proto;
if ($in{'proto'} eq '*') {
$in{'pother'} =~ /^\d+$/ ||
defined(getprotobyname($in{'pother'})) ||
&error($text{'blacklist_eproto'});
$proto = lc($in{'pother'});
}
else {
$proto = lc($in{'proto'});
}
if ($proto eq "tcp" || $proto eq "udp") {
$in{'ports'} =~ /^\S+$/ || &error($text{'blacklist_eports'});
}
elsif ($in{'ports'}) {
&error($text{'blacklist_eports2'});
}
return ( $host, $proto, $in{'ports'} );
}
################################ providers ##################################
sub providers_row
{
return ( $_[0], $_[1], $_[2], $_[4], $_[5] );
}
@providers_opts = ( "track", "balance", "loose" );
sub providers_form
{
print "<tr> <td><b>$text{'providers_name'}</b></td>\n";
print "<td><input name=name size=20 value='$_[0]'></td>\n";
print "<td><b>$text{'providers_number'}</b></td>\n";
print "<td><input name=number size=4 value='$_[1]'></td> </tr>\n";
print "<tr> <td><b>$text{'providers_iface'}</b></td>\n";
print "<td>";
&iface_field("iface", $_[4]);
print "</td>\n";
print "<td><b>$text{'providers_mark'}</b></td>\n";
print "<td><input name=mark size=4 value='$_[2]'></td> </tr>\n";
print "<tr> <td><b>$text{'providers_gateway'}</b></td>\n";
print "<td><input name=gateway size=15 value='$_[5]'></td>\n";
local $ddef = $_[3] eq "-" || $_[3] eq "" ? 0 : $_[3] eq "main" ? 1 : 2;
print "<td><b>$text{'providers_dup'}</b></td>\n";
print "<td>",&ui_radio("dup_def", $ddef,
[ [ 0, $text{'default'} ],
[ 1, $text{'providers_main'} ],
[ 2, &ui_textbox("dup", $ddef == 2 ? $_[3] : "", 5) ] ]),
"</td> </tr>\n";
local %opts = map { $_, 1 } split(/,/, $_[6]);
print "<tr> <td valign=top><b>$text{'providers_opts'}</b></td> <td>\n";
foreach my $o (@providers_opts) {
print &ui_checkbox("opts", $o, $text{'providers_'.$o}, $opts{$o})."<br>\n";
delete($opts{$o});
}
foreach my $o (keys %opts) {
print &ui_hidden("opts", $o),"\n";
}
print "</td>\n";
print "<td valign=top><b>$text{'providers_copy'}</b></td>\n";
print "<td valign=top><input name=copy size=15 value='$_[7]'></td> </tr>\n";
}
sub providers_validate
{
$in{'name'} =~ /^\S+$/ || &error($text{'providers_ename'});
$in{'number'} =~ /^\d+$/ || &error($text{'providers_enumber'});
$in{'mark'} =~ /^\d+$/ || &error($text{'providers_emark'});
$in{'dup_def'} < 2 || $in{'dup'} =~ /^\S+$/ || &error($text{'providers_edup'});
&check_ipaddress($in{'gateway'}) || &error($text{'providers_egateway'});
return ( $in{'name'}, $in{'number'}, $in{'mark'},
$in{'dup_def'} == 0 ? '-' : $in{'dup_def'} == 1 ? 'main' : $in{'dup'},
$in{'iface'}, $in{'gateway'},
join(",", split(/\0/, $in{'opts'})) || "-",
$in{'copy'} || "-" );
}
################################ shorewall.conf ##################################
sub conf_form
{
local ($msg1, $msg2, $msg3, $field1, $field2, $field3, $dummy) = @_;
$field1 =~ s/"/&#34;/g;
print "<tr><td><b>$msg1</b></td>\n";
print "<td><input name=var size=50 value=\"$field1\"></td></tr>\n";
$field2 =~ s/"/&#34;/g;
print "<tr><td><b>$msg2</b></td>\n";
print "<td><input name=val size=50 value=\"$field2\"></td></tr>\n";
$field3 =~ s/"/&#34;/g;
print "<tr><td><b>$msg3</b></td>\n";
print "<td><input name=comment size=50 value=\"$field3\"></td></tr>\n";
print "</td></tr>\n";
}
################################ shorewall.conf ##################################
sub shorewall_conf_columns
{
return 3;
}
sub shorewall_conf_form
{
&conf_form($text{'shorewall_conf_0'}, $text{'shorewall_conf_1'}, $text{'shorewall_conf_2'}, @_);
}
sub shorewall_conf_validate
{
&error($text{'shorewall_conf_varname'}) unless $in{'var'} =~ /^\w+$/;
local $comment = "";
$comment = "\t# ".$in{'comment'} if (exists $in{'comment'} and $in{'comment'} ne "");
return ($in{'var'}.'='.$in{'val'}.$comment);
}
################################ params ##################################
sub params_columns
{
return 3;
}
sub params_form
{
&conf_form($text{'params_0'}, $text{'params_1'}, $text{'params_2'}, @_);
}
sub params_validate
{
&error($text{'params_varname'}) unless $in{'var'} =~ /^\w+$/;
local $comment = "";
$comment = "\t# ".$in{'comment'} if (exists $in{'comment'} and $in{'comment'} ne "");
return ($in{'var'}.'='.$in{'val'}.$comment);
}
#############################################################################
# can_access(file)
sub can_access
{
if ($access{'files'} eq '*') {
return 1;
}
else {
local @acc = split(/\s+/, $access{'files'});
return &indexof($_[0], @acc) >= 0;
}
}
# run_before_apply_command()
# Runs the before-applying command, if any. If it failes, returns the error
# message output
sub run_before_apply_command
{
if ($config{'before_apply_cmd'}) {
local $out = &backquote_logged("($config{'before_apply_cmd'}) </dev/null 2>&1");
return $out if ($?);
}
return undef;
}
# run_after_apply_command()
# Runs the after-applying command, if any
sub run_after_apply_command
{
if ($config{'after_apply_cmd'}) {
&system_logged("($config{'after_apply_cmd'}) </dev/null >/dev/null 2>&1");
}
}
# list_standard_actions()
# Returns a list of standard Shorewall actions
sub list_standard_actions
{
local @rv;
foreach my $a (split(/\t+/, $config{'actions'})) {
open(ACTIONS, $a);
while(<ACTIONS>) {
s/\r|\n//g;
s/#.*$//;
s/\s+$//;
if (/\S/) {
push(@rv, $_);
}
}
close(ACTIONS);
}
if (&version_atleast(3)) {
# Add built-in actions
push(@rv, "allowBcast", "dropBcast", "dropNotSyn", "rejNotSyn",
"dropInvalid", "allowInvalid", "allowoutUPnP", "allowinUPnP",
"forwardUPnP");
}
return &unique(@rv);
}
# list_standard_macros()
# Returns a list of all macro. actions
sub list_standard_macros
{
local @rv;
foreach my $a ($config{'config_dir'}, $config{'macros'}) {
opendir(DIR, $a);
foreach my $f (readdir(DIR)) {
push(@rv, $1) if ($f =~ /^macro\.(.*)$/);
}
closedir(DIR);
}
return &unique(@rv);
}
$BETA_STR = "-Beta";
$BETA_NUM = "\.0000\.";
# get_shorewall_version(nocache)
sub get_shorewall_version
{
local ($nocache) = @_;
local $version;
if (!$nocache && open(VERSION, "$module_config_directory/version")) {
chop($version = <VERSION>);
close(VERSION);
}
if (!$version) {
local $out = `$config{'shorewall'} version 2>&1`;
$out =~ s/\r//g;
$out =~ s/$BETA_STR/$BETA_NUM/i; # Convert beta string to version number.
if ($out =~ /(\n|^)([0-9\.]+)\n/) {
$version = $2;
}
}
return $version;
}
sub get_printable_version($)
{
local $out = $_[0];
$out =~ s/$BETA_NUM/$BETA_STR/i; # Convert version number back to string.
return $out;
}
sub list_protocols
{
local @stdprotos = ( 'tcp', 'udp', 'icmp' );
local @otherprotos;
open(PROTOS, "/etc/protocols");
while(<PROTOS>) {
s/\r|\n//g;
s/#.*$//;
push(@otherprotos, $1) if (/^(\S+)\s+(\d+)/);
}
close(PROTOS);
@otherprotos = sort { lc($a) cmp lc($b) } @otherprotos;
return &unique(@stdprotos, @otherprotos);
}
# options_input(name, value, &opts)
sub options_input
{
local ($name, $value, $opts) = @_;
local %opts = map { $_, 1 } split(/,/, $value);
print "<table width=100%>\n";
local $i = 0;
foreach my $o (@$opts) {
print "<tr>\n" if ($i%3 == 0);
printf "<td><input type=checkbox name=$name value=%s %s> %s</td>\n",
$o, $opts{$o} ? "checked" : "", $text{'opts_'.$o} || $o;
print "</tr>\n" if ($i%3 == 2);
delete($opts{$o});
$i++;
}
foreach $o (keys %opts) {
print "<input type=hidden name=opts value=$o>\n";
}
print "</table>\n";
}
1;