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Editing: shorewall-lib.pl
# shorewall-lib.pl # Common functions for the shorewall configuration files # FIXME: # - rule sections # - read_shorewall_config & standard_parser do not allow quoted comment characters BEGIN { push(@INC, ".."); }; use WebminCore; &init_config(); # 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', 'route_rules' ) : ( ) ), '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); $idx = -1; for($i=0; $i<@$lref; $i++) { if ($lref->[$i] =~ /^#+\s*LAST\s+LINE/) { $idx = $i; last; } elsif ($lref->[$i] =~ /^\??SECTION\s+NEW/) { $idx = $i+1; last; } elsif ($lref->[$i] =~ /^\??FORMAT\s+[1-2]/) { $idx = $i+1; last; } } if (defined($_[3])) { local $lnum = &find_line_num($lref, $_[1], $_[3]); $lnum = $idx if (!defined($lnum)); if ($lnum < 0) { push(@$lref, &simplify_line($_[2])); } else { splice(@$lref, $lnum, 0, &simplify_line($_[2])); } } else { if ($idx < 0) { push(@$lref, &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'}"); my $idx = -1; for(my $i=0; $i<@$lref; $i++) { if ($lref->[$i] =~ /^#+\s*LAST\s+LINE/) { $idx = $i; last; } } if ($idx < 0) { # Add at end $idx = scalar(@$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] =~ /\??SECTION/ || $sp[0] =~ /\??FORMAT/); 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</option>\n", $_[1] eq '-' ? "selected" : "", "<$text{'list_any'}>"; $found = !$_[1] || $_[1] eq '-'; } elsif ($_[3] == 0) { printf "<option value=all %s>%s</option>\n", $_[1] eq 'all' ? "selected" : "", "<$text{'list_any'}>"; printf "<option value=\$FW %s>%s</option>\n", &is_fw($_[1]) ? "selected" : "", "<$text{'list_fw'}>"; $found = !$_[1] || $_[1] eq 'all' || &is_fw($_[1]); } foreach $z (@ztable) { printf "<option value=%s %s>%s</option>\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</option>\n", $found ? "" : "selected", $text{'list_other'}; } else { print "<option value=$_[1] selected>$_[1]</option>\n" if (!$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</option>\n", $i->[1], $_[1] eq $i->[1] ? "selected" : "", $i->[1]; $found++ if ($_[1] eq $i->[1]); } print "<option value=$_[1] selected>$_[1]</option>\n" if (!$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'}, $in{'desc'} ); } } ################################# interfaces ################################### sub new_interfaces_format { if (&version_atleast(4, 5, 3)) { open(FILE, "<$config{'config_dir'}/interfaces"); while(<FILE>) { s/\r|\n//g; if ($_ =~ /\??FORMAT\s+2/) { return 1; } } close(FILE); } return 0; } sub interfaces_row { if (&new_interfaces_format()) { return ( $_[1], $_[0] eq '-' ? $text{'list_any'} : $_[0], $_[2] eq '-' || $_[2] eq '' ? $text{'list_none'} : $_[2] ); } else { return ( $_[1], $_[0] eq '-' ? $text{'list_any'} : $_[0], $_[2] eq 'detect' ? $text{'list_auto'} : $_[2] eq '-' || $_[2] eq '' ? $text{'list_none'} : $_[2], $_[3] eq '-' || $_[3] eq '' ? $text{'list_none'} : $_[3] ); } } @interfaces_opts = ( 'dhcp', 'multi', 'routefilter', 'maclist', 'tcpflags', 'proxyarp' ); if (!&version_atleast(5, 0, 4)) { push(@interfaces_opts, 'noping', 'filterping', 'routestopped', 'norfc1918', 'dropunclean', 'logunclean', 'blacklist'); } if (&version_atleast(3)) { push(@interfaces_opts, "logmartians", "routeback", "arp_filter", "arp_ignore", "nosmurfs", "detectnets", "upnp"); } sub interfaces_form { print "<tr> <td><b>$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"; if (&new_interfaces_format()) { local %opts = map { $_, 1 } split(/,/, $_[2]); print "<tr> <td valign=top><b>$text{'interfaces_3'}</b></td> <td colspan=3>\n"; &options_input("opts", $_[2], \@interfaces_opts); print "</td> </tr>\n"; } else { 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] : ""; 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 { $in{'iface'} =~ /^[a-z]+\d*(s\d*)?(\.\d+)?$/ || $in{'iface'} =~ /^[a-z]+\+$/ || &error($text{'interfaces_eiface'}); local @result = ( $in{'zone'}, $in{'iface'}); if (not &new_interfaces_format()) { $in{'broad_mode'} || $in{'broad'} =~ /^[0-9\.,]+$/ || &error($text{'interfaces_ebroad'}); push(@result, $in{'broad_mode'} == 2 ? 'detect' : $in{'broad_mode'} == 1 ? '-' : $in{'broad'}); } push(@result, join(",", split(/\0/, $in{'opts'}))); return @result; } sub interfaces_columns { return &new_interfaces_format() ? 3 : 4; } sub interfaces_colnames { local @result = ( $text{'interfaces_0'}, $text{'interfaces_1'} ); if (not &new_interfaces_format()) { push(@result, $text{'interfaces_2'}); } push(@result, $text{'interfaces_3'}); return @result; } ################################# 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</option>\n", $p, lc($p) eq lc($_[2]) ? "selected" : "", $p; $found++ if (lc($p) eq lc($_[2])); } print "<option value=$_[2] selected>$_[2]</option>\n" if (!$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</option>\n", $_[3] eq '-' || !$_[3] ? "selected" : "", "<$text{'policy_nolog'}>"; printf "<option value=ULOG %s>%s</option>\n", $_[3] eq 'ULOG' ? "selected" : "", "<$text{'policy_ulog'}>"; $found = !$_[3] || $_[3] eq '-' || $_[3] eq 'ULOG'; &foreign_require("syslog", "syslog-lib.pl"); foreach $l (&syslog::list_priorities()) { printf "<option value=%s %s>%s</option>\n", $l, $_[3] eq $l ? "selected" : "", $l; $found++ if ($_[3] eq $l); } print "<option value=$_[3] selected>$_[3]</option>\n" if (!$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</option>\n", $a, $action eq $a ? "selected" : "", $a; $found++ if ($action eq $a); } print "<option value=$action selected>$action</option>\n" if (!$found); print "</select>\n"; # Logging level print "<b>$text{'rules_log'}</b> <select name=log>\n"; printf "<option value='' %s>%s</option>\n", !$log ? "selected" : "", "<$text{'rules_nolog'}>"; printf "<option value=ULOG %s>%s</option>\n", $log eq 'ULOG' ? "selected" : "", "<$text{'policy_ulog'}>"; $found = !$log || $log eq '-' || $log eq 'ULOG'; &foreign_require("syslog", "syslog-lib.pl"); foreach $l (&syslog::list_priorities()) { printf "<option value=%s %s>%s</option>\n", $l, $log eq $l ? "selected" : "", $l; $found++ if ($log eq $l); } print "<option value=$log selected>$log</option>\n" if (!$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", $macroarg, [ [ "", "<$text{'rules_none2'}>" ], 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</option>\n", $p, $p eq $_[3] ? "selected" : "", $p eq 'all' ? "<$text{'list_any'}>" : $p eq 'related' ? "<$text{'rules_related'}>" : uc($p); $found++ if ($p eq $_[3]); } printf "<option value='' %s>%s</option>\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], $_[6] eq '-' ? $text{'list_none'} : $_[6] ); } sub tos_form { local ($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</option>\n", $p, $p eq $_[2] ? "selected" : "", uc($p); $found++ if ($p eq $_[2]); } printf "<option value='' %s>%s</option>\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</option>\n", $t, $_[5] == $t ? "selected" : "", $tos_map{$t}; $found++ if ($_[5] == $t); } print "<option value=$_[5] selected>$_[5]</option>\n" if (!$found); print "</select></td> </tr>\n"; print "<tr> <td><b>$text{'tos_6'}</b></td>\n"; printf "<td><input name=mark size=50 value='%s'></td> </tr>\n", $_[6] eq "-" ? "" : $_[6]; } 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'}, $in{'mark'} || "-" ); } ################################# 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\.\/]+(,[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=60 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</option>\n", $tt, $ttype eq $tt ? "selected" : "", $text{'tunnels_'.$tt.'_l'} || $text{'tunnels_'.$tt}; $found++ if ($ttype eq $tt); } print "<option value=$ttype selected>",uc($ttype),"</option>\n" if (!$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] eq '-' ? $text{'blacklist_any'} : $_[0], uc($_[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 = $1; } elsif ($_[0] eq '-') { $mode = 3; } 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>" ], [ 3, $text{'hosts_any'}."<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</option>\n", $p, $p eq $_[1] ? "selected" : "", $p eq '' ? "<$text{'list_any'}>" : uc($p); $found++ if ($p eq $_[1]); } printf "<option value='*' %s>%s</option>\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'}; } elsif ($in{'host_def'} == 3) { $host = "-"; } 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'} || "-" ); } ############################## route_rules ################################ sub route_rules_row { return ( $_[0] eq "-" ? $text{'list_any'} : $_[0], $_[1] eq "-" ? $text{'list_any'} : $_[1], $_[2], $_[3], $_[4] ); } sub route_rules_form { print "<tr> <td><b>$text{'route_rules_src'}</b></td>\n"; print "<td>",&ui_opt_textbox("src", $_[0] eq "-" ? "" : $_[0], 20, $text{'list_any'}, $text{'route_rules_ip'}), "</td> </tr>\n"; print "<tr> <td><b>$text{'route_rules_dst'}</b></td>\n"; print "<td>",&ui_opt_textbox("dst", $_[1] eq "-" ? "" : $_[1], 20, $text{'list_any'}, $text{'route_rules_ip'}), "</td> </tr>\n"; local @ptable = &read_table_file("providers", \&standard_parser); print "<tr> <td><b>$text{'route_rules_prov'}</b></td>\n"; print "<td>",&ui_select("prov", $_[2] eq "254" ? "main" : $_[2], [ [ "main", $text{'route_rules_main'} ], map { $_->[0] } @ptable ]),"</td> </tr>\n"; print "<tr> <td><b>$text{'route_rules_pri'}</b></td>\n"; print "<td>",&ui_textbox("pri", $_[3], 10),"</td> </tr>\n"; print "<tr> <td><b>$text{'route_rules_mark'}</b></td>\n"; print "<td>",&ui_opt_textbox("mark", $_[4] eq "-" ? $_[4] : "", 10, $text{'route_rules_nomark'}),"</td> </tr>\n"; } sub route_rules_validate { $in{'src_def'} || $in{'src'} =~ /^\S+$/ || &error($text{'route_rules_esrc'}); $in{'dst_def'} || $in{'dst'} =~ /^\S+$/ || &error($text{'route_rules_edst'}); $in{'pri'} =~ /^\d+$/ || &error($text{'route_rules_epri'}); $in{'mark_def'} || $in{'mark'} =~ /^\d+(\/\d+)?$/ || &error($text{'route_rules_emark'}); return ( $in{'src_def'} ? "-" : $in{'src'}, $in{'dst_def'} ? "-" : $in{'dst'}, $in{'prov'}, $in{'pri'}, $in{'mark_def'} ? ( ) : ( $in{'mark'} ) ); } ################################ shorewall.conf ################################## sub conf_form { local ($msg1, $msg2, $msg3, $field1, $field2, $field3, $dummy) = @_; $field1 =~ s/"/"/g; print "<tr><td><b>$msg1</b></td>\n"; print "<td><input name=var size=50 value=\"$field1\"></td></tr>\n"; $field2 =~ s/"/"/g; print "<tr><td><b>$msg2</b></td>\n"; print "<td><input name=val size=50 value=\"$field2\"></td></tr>\n"; $field3 =~ s/"/"/g; print "<tr><td><b>$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 fails, 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"); } } # run_before_refresh_command() # Runs the before-refresh command, if any. If it fails, returns the error # message output sub run_before_refresh_command { if ($config{'before_refresh_cmd'}) { local $out = &backquote_logged("($config{'before_refresh_cmd'}) </dev/null 2>&1"); return $out if ($?); } return undef; } # run_after_refresh_command() # Runs the after-refresh command, if any sub run_after_refresh_command { if ($config{'after_refresh_cmd'}) { &system_logged("($config{'after_refresh_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(sort(@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;
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