Fix connection.cgi display for strongswan.
[people/pmueller/ipfire-2.x.git] / html / cgi-bin / connections.cgi
1 #!/usr/bin/perl
2 ###############################################################################
3 # #
4 # IPFire.org - A linux based firewall #
5 # Copyright (C) 2007 Michael Tremer & Christian Schmidt #
6 # #
7 # This program is free software: you can redistribute it and/or modify #
8 # it under the terms of the GNU General Public License as published by #
9 # the Free Software Foundation, either version 3 of the License, or #
10 # (at your option) any later version. #
11 # #
12 # This program is distributed in the hope that it will be useful, #
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of #
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15 # GNU General Public License for more details. #
16 # #
17 # You should have received a copy of the GNU General Public License #
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. #
19 # #
20 ###############################################################################
21
22 my @network=();
23 my @masklen=();
24 my @colour=();
25
26 use Net::IPv4Addr qw( :all );
27
28 use strict;
29
30 # enable only the following on debugging purpose
31 #use warnings;
32 #use CGI::Carp 'fatalsToBrowser';
33
34 require '/var/ipfire/general-functions.pl';
35 require "${General::swroot}/lang.pl";
36 require "${General::swroot}/header.pl";
37
38 #workaround to suppress a warning when a variable is used only once
39 my @dummy = ( ${Header::table1colour} );
40 undef (@dummy);
41
42 # Read various files
43
44 my %netsettings=();
45 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
46
47 open (ACTIVE, '/usr/local/bin/getiptstate |') or die 'Unable to open ip_conntrack';
48 my @active = <ACTIVE>;
49 close (ACTIVE);
50
51 if (open(IP, "${General::swroot}/red/local-ipaddress")) {
52 my $redip = <IP>;
53 close(IP);
54 chomp $redip;
55 push(@network, $redip);
56 push(@masklen, '255.255.255.255' );
57 push(@colour, ${Header::colourfw} );
58 }
59
60 my @vpn = `grep "rightsubnet=" /etc/ipsec.conf | cut -f2 -d"=" | sed "s|/| |g"`;
61 foreach my $route (@vpn) {
62 chomp($route);
63 my @temp = split(/[\t ]+/, $route);
64 if ( $temp[0] eq '$redip' ){next;}
65 push(@network, $temp[0]);
66 push(@masklen, $temp[1]);
67 push(@colour, ${Header::colourvpn} );
68 }
69
70 my $aliasfile = "${General::swroot}/ethernet/aliases";
71 open(ALIASES, $aliasfile) or die 'Unable to open aliases file.';
72 my @aliases = <ALIASES>;
73 close(ALIASES);
74
75 # Add Green Firewall Interface
76 push(@network, $netsettings{'GREEN_ADDRESS'});
77 push(@masklen, "255.255.255.255" );
78 push(@colour, ${Header::colourfw} );
79
80 # Add Green Network to Array
81 push(@network, $netsettings{'GREEN_NETADDRESS'});
82 push(@masklen, $netsettings{'GREEN_NETMASK'} );
83 push(@colour, ${Header::colourgreen} );
84
85 # Add Green Routes to Array
86 my @routes = `/sbin/route -n | /bin/grep $netsettings{'GREEN_DEV'}`;
87 foreach my $route (@routes) {
88 chomp($route);
89 my @temp = split(/[\t ]+/, $route);
90 push(@network, $temp[0]);
91 push(@masklen, $temp[2]);
92 push(@colour, ${Header::colourgreen} );
93 }
94
95 # Add Firewall Localhost 127.0.0.1
96 push(@network, '127.0.0.1');
97 push(@masklen, '255.255.255.255' );
98 push(@colour, ${Header::colourfw} );
99
100 # Add Orange Network
101 if ($netsettings{'ORANGE_DEV'}) {
102 push(@network, $netsettings{'ORANGE_NETADDRESS'});
103 push(@masklen, $netsettings{'ORANGE_NETMASK'} );
104 push(@colour, ${Header::colourorange} );
105 # Add Orange Routes to Array
106 @routes = `/sbin/route -n | /bin/grep $netsettings{'ORANGE_DEV'}`;
107 foreach my $route (@routes) {
108 chomp($route);
109 my @temp = split(/[\t ]+/, $route);
110 push(@network, $temp[0]);
111 push(@masklen, $temp[2]);
112 push(@colour, ${Header::colourorange} );
113 }
114 }
115
116 # Add Blue Firewall Interface
117 push(@network, $netsettings{'BLUE_ADDRESS'});
118 push(@masklen, "255.255.255.255" );
119 push(@colour, ${Header::colourfw} );
120
121 # Add Blue Network
122 if ($netsettings{'BLUE_DEV'}) {
123 push(@network, $netsettings{'BLUE_NETADDRESS'});
124 push(@masklen, $netsettings{'BLUE_NETMASK'} );
125 push(@colour, ${Header::colourblue} );
126 # Add Blue Routes to Array
127 @routes = `/sbin/route -n | /bin/grep $netsettings{'BLUE_DEV'}`;
128 foreach my $route (@routes) {
129 chomp($route);
130 my @temp = split(/[\t ]+/, $route);
131 push(@network, $temp[0]);
132 push(@masklen, $temp[2]);
133 push(@colour, ${Header::colourblue} );
134 }
135 }
136
137 # Add OpenVPN net and RED/BLUE/ORANGE entry (when appropriate)
138 if (-e "${General::swroot}/ovpn/settings") {
139 my %ovpnsettings = ();
140 &General::readhash("${General::swroot}/ovpn/settings", \%ovpnsettings);
141 my @tempovpnsubnet = split("\/",$ovpnsettings{'DOVPN_SUBNET'});
142
143 # add OpenVPN net
144 push(@network, $tempovpnsubnet[0]);
145 push(@masklen, $tempovpnsubnet[1]);
146 push(@colour, ${Header::colourovpn} );
147
148
149 if ( ($ovpnsettings{'ENABLED_BLUE'} eq 'on') && $netsettings{'BLUE_DEV'} ) {
150 # add BLUE:port / proto
151 push(@network, $netsettings{'BLUE_ADDRESS'} );
152 push(@masklen, '255.255.255.255' );
153 push(@colour, ${Header::colourovpn} );
154 }
155 if ( ($ovpnsettings{'ENABLED_ORANGE'} eq 'on') && $netsettings{'ORANGE_DEV'} ) {
156 # add ORANGE:port / proto
157 push(@network, $netsettings{'ORANGE_ADDRESS'} );
158 push(@masklen, '255.255.255.255' );
159 push(@colour, ${Header::colourovpn} );
160 }
161 }
162
163 # Add STATIC RED aliases
164 if ($netsettings{'RED_DEV'}) {
165 # We have a RED eth iface
166 if ($netsettings{'RED_TYPE'} eq 'STATIC') {
167 # We have a STATIC RED eth iface
168 foreach my $line (@aliases)
169 {
170 chomp($line);
171 my @temp = split(/\,/,$line);
172 if ( $temp[0] ) {
173 push(@network, $temp[0]);
174 push(@masklen, $netsettings{'RED_NETMASK'} );
175 push(@colour, ${Header::colourfw} );
176 }
177 }
178 }
179 }
180
181 # Add VPNs
182 if ( $vpn[0] ne 'none' ) {
183 foreach my $line (@vpn) {
184 my @temp = split(/[\t ]+/,$line);
185 my @temp1 = split(/[\/:]+/,$temp[3]);
186 push(@network, $temp1[0]);
187 push(@masklen, ipv4_cidr2msk($temp1[1]));
188 push(@colour, ${Header::colourvpn} );
189 }
190 }
191
192 #Establish simple filtering&sorting boxes on top of table
193
194 our %cgiparams;
195 &Header::getcgihash(\%cgiparams);
196
197 my @list_proto = ($Lang::tr{'all'}, 'icmp', 'udp', 'tcp');
198 my @list_state = ($Lang::tr{'all'}, 'SYN_SENT', 'SYN_RECV', 'ESTABLISHED', 'FIN_WAIT',
199 'CLOSE_WAIT', 'LAST_ACK', 'TIME_WAIT', 'CLOSE', 'LISTEN');
200 my @list_mark = ($Lang::tr{'all'}, '[ASSURED]', '[UNREPLIED]');
201 my @list_sort = ('orgsip','protocol', 'expires', 'status', 'orgdip', 'orgsp',
202 'orgdp', 'exsip', 'exdip', 'exsp', 'exdp', 'marked');
203
204 # init or silently correct unknown value...
205 if ( ! grep ( /^$cgiparams{'SEE_PROTO'}$/ , @list_proto )) { $cgiparams{'SEE_PROTO'} = $list_proto[0] };
206 if ( ! grep ( /^$cgiparams{'SEE_STATE'}$/ , @list_state )) { $cgiparams{'SEE_STATE'} = $list_state[0] };
207 if ( ($cgiparams{'SEE_MARK'} ne $Lang::tr{'all'}) && # ok the grep should work but it doesn't because of
208 ($cgiparams{'SEE_MARK'} ne '[ASSURED]') && # the '[' & ']' interpreted as list separator.
209 ($cgiparams{'SEE_MARK'} ne '[UNREPLIED]') # So, explicitly enumerate items.
210 ) { $cgiparams{'SEE_MARK'} = $list_mark[0] };
211 if ( ! grep ( /^$cgiparams{'SEE_SORT'}$/ , @list_sort )) { $cgiparams{'SEE_SORT'} = $list_sort[0] };
212 # *.*.*.* or a valid IP
213 if ( $cgiparams{'SEE_SRC'} !~ /^(\*\.\*\.\*\.\*\.|\d+\.\d+\.\d+\.\d+)$/) { $cgiparams{'SEE_SRC'} = '*.*.*.*' };
214 if ( $cgiparams{'SEE_DEST'} !~ /^(\*\.\*\.\*\.\*\.|\d+\.\d+\.\d+\.\d+)$/) { $cgiparams{'SEE_DEST'} = '*.*.*.*' };
215
216
217 our %entries = (); # will hold the lines analyzed correctly
218 my $unknownlines = ''; # should be empty all the time...
219 my $index = 0; # just a counter to make unique entryies in entries
220
221 &Header::showhttpheaders();
222 &Header::openpage($Lang::tr{'connections'}, 1, '');
223 &Header::openbigbox('100%', 'left');
224 &Header::openbox('100%', 'left', $Lang::tr{'connection tracking'});
225
226 # Build listbox objects
227 my $menu_proto = &make_select ('SEE_PROTO', $cgiparams{'SEE_PROTO'}, @list_proto);
228 my $menu_state = &make_select ('SEE_STATE', $cgiparams{'SEE_STATE'}, @list_state);
229
230 print <<END
231 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
232 <table width='100%'>
233 <tr><td align='center'><b>$Lang::tr{'legend'} : </b></td>
234 <td align='center' bgcolor='${Header::colourgreen}'><b><font color='#FFFFFF'>$Lang::tr{'lan'}</font></b></td>
235 <td align='center' bgcolor='${Header::colourred}'><b><font color='#FFFFFF'>$Lang::tr{'internet'}</font></b></td>
236 <td align='center' bgcolor='${Header::colourorange}'><b><font color='#FFFFFF'>$Lang::tr{'dmz'}</font></b></td>
237 <td align='center' bgcolor='${Header::colourblue}'><b><font color='#FFFFFF'>$Lang::tr{'wireless'}</font></b></td>
238 <td align='center' bgcolor='${Header::colourfw}'><b><font color='#FFFFFF'>IPFire</font></b></td>
239 <td align='center' bgcolor='${Header::colourvpn}'><b><font color='#FFFFFF'>$Lang::tr{'vpn'}</font></b></td>
240 <td align='center' bgcolor='${Header::colourovpn}'><b><font color='#FFFFFF'>$Lang::tr{'OpenVPN'}</font></b></td>
241 </tr>
242 </table>
243 <br />
244 <table width='100%'>
245 <tr><td align='center'><font size=2>$Lang::tr{'source ip and port'}</font></td>
246 <td>&nbsp;</td>
247 <td align='center'><font size=2>$Lang::tr{'dest ip and port'}</font></td>
248 <td>&nbsp;</td>
249 <td align='center'><font size=2>$Lang::tr{'protocol'}</font></td>
250 <td align='center'><font size=2>$Lang::tr{'connection'}<br></br>$Lang::tr{'status'}</font></td>
251 <td align='center'><font size=2>$Lang::tr{'expires'}<br></br>($Lang::tr{'seconds'})</font></td>
252
253 </tr>
254 <tr><td colspan='4'>&nbsp;</td>
255 <td align='center'>$menu_proto</td>
256 <td align='center'>$menu_state</td>
257 <td>&nbsp;</td>
258 </tr>
259 <tr>
260 <td align='center' colspan='7'></td>
261 </tr>
262 <tr>
263 <td align='center' colspan='7'><input type='submit' value="$Lang::tr{'update'}" /></td>
264 </tr>
265
266 END
267 ;
268
269 my $i=0;
270 foreach my $line (@active) {
271 $i++;
272 if ($i < 3) {
273 next;
274 }
275 chomp($line);
276 my @temp = split(' ',$line);
277
278 my ($sip, $sport) = split(':', $temp[0]);
279 my ($dip, $dport) = split(':', $temp[1]);
280 my $proto = $temp[2];
281 my $state; my $ttl;
282 if ( $proto eq "esp" ){$state = "";$ttl = $temp[3];}
283 elsif ( $proto eq "icmp" ){$state = "";$ttl = $temp[4];}
284 else{$state = $temp[3];$ttl = $temp[4];}
285
286 next if( !(
287 (($cgiparams{'SEE_PROTO'} eq $Lang::tr{'all'}) || ($proto eq $cgiparams{'SEE_PROTO'} ))
288 && (($cgiparams{'SEE_STATE'} eq $Lang::tr{'all'}) || ($state eq $cgiparams{'SEE_STATE'} ))
289 && (($cgiparams{'SEE_SRC'} eq "*.*.*.*") || ($sip eq $cgiparams{'SEE_SRC'} ))
290 && (($cgiparams{'SEE_DEST'} eq "*.*.*.*") || ($dip eq $cgiparams{'SEE_DEST'} ))
291 ));
292
293 if (($proto eq 'udp') && ($ttl eq '')) {
294 $ttl = $state;
295 $state = '&nbsp;';
296 }
297
298 my $sipcol = ipcolour($sip);
299 my $dipcol = ipcolour($dip);
300
301 my $sserv = '';
302 if ($sport < 1024) {
303 $sserv = uc(getservbyport($sport, lc($proto)));
304 if ($sserv ne '') {
305 $sserv = "&nbsp;($sserv)";
306 }
307 }
308
309 my $dserv = '';
310 if ($dport < 1024) {
311 $dserv = uc(getservbyport($dport, lc($proto)));
312 if ($dserv ne '') {
313 $dserv = "&nbsp;($dserv)";
314 }
315 }
316
317 print <<END
318 <tr >
319 <td align='center' bgcolor='$sipcol'>
320 <a href='/cgi-bin/ipinfo.cgi?ip=$sip'>
321 <font color='#FFFFFF'>$sip</font>
322 </a>
323 </td>
324 <td align='center' bgcolor='$sipcol'>
325 <a href='http://isc.sans.org/port_details.php?port=$sport' target='top'>
326 <font color='#FFFFFF'>$sport$sserv</font>
327 </a>
328 </td>
329 <td align='center' bgcolor='$dipcol'>
330 <a href='/cgi-bin/ipinfo.cgi?ip=$dip'>
331 <font color='#FFFFFF'>$dip</font>
332 </a>
333 </td>
334 <td align='center' bgcolor='$dipcol'>
335 <a href='http://isc.sans.org/port_details.php?port=$dport' target='top'>
336 <font color='#FFFFFF'>$dport$dserv</font>
337 </a>
338 </td>
339 <td align='center'>$proto</td>
340 <td align='center'>$state</td>
341 <td align='center'>$ttl</td>
342 </tr>
343 END
344 ;
345 }
346
347 print "</table></form>";
348
349 &Header::closebox();
350 &Header::closebigbox();
351 &Header::closepage();
352
353 sub ipcolour($) {
354 my $id = 0;
355 my $line;
356 my $colour = ${Header::colourred};
357 my ($ip) = $_[0];
358 my $found = 0;
359 foreach $line (@network) {
360 if ($network[$id] eq '') {
361 $id++;
362 } else {
363 if (!$found && ipv4_in_network( $network[$id] , $masklen[$id], $ip) ) {
364 $found = 1;
365 $colour = $colour[$id];
366 }
367 $id++;
368 }
369 }
370 return $colour
371 }
372
373 # Create a string containing a complete SELECT html object
374 # param1: name
375 # param2: current value selected
376 # param3: field list
377 sub make_select ($,$,$) {
378 my $select_name = shift;
379 my $selected = shift;
380 my $select = "<select name='$select_name'>";
381
382 foreach my $value (@_) {
383 my $check = $selected eq $value ? "selected='selected'" : '';
384 $select .= "<option $check value='$value'>$value</option>";
385 }
386 $select .= "</select>";
387 return $select;
388 }
389
390 # Build a list of IP obtained from the %entries hash
391 # param1: IP field name
392 sub get_known_ips ($) {
393 my $field = shift;
394 my $qs = $cgiparams{'SEE_SORT'}; # switch the sort order
395 $cgiparams{'SEE_SORT'} = $field;
396
397 my @liste=('*.*.*.*');
398 foreach my $entry ( sort sort_entries keys %entries) {
399 push (@liste, $entries{$entry}->{$field}) if (! grep (/^$entries{$entry}->{$field}$/,@liste) );
400 }
401
402 $cgiparams{'SEE_SORT'} = $qs; #restore sort order
403 return @liste;
404 }
405
406 # Used to sort the table containing the lines displayed.
407 sub sort_entries { #Reverse is not implemented
408 my $qs=$cgiparams{'SEE_SORT'};
409 if ($qs =~ /orgsip|orgdip|exsip|exdip/) {
410 my @a = split(/\./,$entries{$a}->{$qs});
411 my @b = split(/\./,$entries{$b}->{$qs});
412 ($a[0]<=>$b[0]) ||
413 ($a[1]<=>$b[1]) ||
414 ($a[2]<=>$b[2]) ||
415 ($a[3]<=>$b[3]);
416 } elsif ($qs =~ /expire|orgsp|orgdp|exsp|exdp/) {
417 $entries{$a}->{$qs} <=> $entries{$b}->{$qs};
418 } else {
419 $entries{$a}->{$qs} cmp $entries{$b}->{$qs};
420 }
421 }
422
423 1;