zoneconf: Fix bug that resultet from last fix
[ipfire-2.x.git] / html / cgi-bin / zoneconf.cgi
1 #!/usr/bin/perl
2 ###############################################################################
3 #                                                                             #
4 # VLAN Management for IPFire                                                  #
5 # Copyright (C) 2019 Florian B├╝hrle <fbuehrle@ipfire.org>                     #
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 use strict;
23 use Scalar::Util qw(looks_like_number);
24
25 require '/var/ipfire/general-functions.pl';
26 require "${General::swroot}/lang.pl";
27 require "${General::swroot}/header.pl";
28
29 my $css = <<END
30 <style>
31         table {
32                 width: 100%;
33         }
34
35         tr {
36                 height: 4em;
37         }
38
39         td:first-child {
40                 width: 1px;
41         }
42
43         td {
44                 padding: 5px;
45                 padding-left: 10px;
46                 padding-right: 10px;
47                 border: 0.5px solid black;
48         }
49
50         table {
51                 border-collapse: collapse;
52         }
53
54         td.h {
55                 background-color: grey;
56                 color: white;
57                 font-weight: 800;
58         }
59
60         td.green {
61                 background-color: $Header::colourgreen;
62         }
63
64         td.red {
65                 background-color: $Header::colourred;
66         }
67
68         td.blue {
69                 background-color: $Header::colourblue;
70         }
71
72         td.orange {
73                 background-color: $Header::colourorange;
74         }
75
76         td.topleft {
77                 background-color: white;
78                 border-top-style: none;
79                 border-left-style: none;
80         }
81
82         td.disabled {
83                 background-color: #cccccc;
84         }
85
86         td.textcenter {
87                 text-align: center;
88         }
89
90         #submit-container {
91                 width: 100%;
92                 padding-top: 20px;
93                 text-align: right;
94         }
95
96         #submit-container.input {
97                 margin-left: auto;
98         }
99
100         button {
101                 margin-top: 1em;
102         }
103
104 </style>
105 END
106 ;
107
108 my %ethsettings = ();
109 my %vlansettings = ();
110 my %cgiparams = ();
111
112 &General::readhash("${General::swroot}/ethernet/settings",\%ethsettings);
113 &General::readhash("${General::swroot}/ethernet/vlans",\%vlansettings);
114
115 &Header::getcgihash(\%cgiparams);
116 &Header::showhttpheaders();
117
118 # Define all zones we will check for NIC assignment
119 my @zones = ("green", "red", "orange", "blue");
120
121 # Get all physical NICs present
122 opendir(my $dh, "/sys/class/net/");
123 my @nics = ();
124
125 while (my $nic = readdir($dh)) {
126         if (-e "/sys/class/net/$nic/device") { # Indicates that the NIC is physical
127                 push(@nics, [&Network::get_nic_property($nic, "address"), $nic, 0]);
128         }
129 }
130
131 closedir($dh);
132
133 @nics = sort {$a->[0] cmp $b->[0]} @nics; # Sort nics by their MAC address
134
135 # Name the physical NICs
136 # Even though they may not be really named like this, we will name them ethX or wlanX
137 my $ethcount = 0;
138 my $wlancount = 0;
139
140 foreach (@nics) {
141         my $nic = $_->[1];
142
143         if (-e "/sys/class/net/$nic/wireless") {
144                 $_->[1] = "wlan$wlancount";
145                 $_->[2] = 1;
146                 $wlancount++;
147         } else {
148                 $_->[1] = "eth$ethcount";
149                 $ethcount++;
150         }
151 }
152
153 &Header::openpage($Lang::tr{"zoneconf title"}, 1, $css);
154 &Header::openbigbox('100%', 'center');
155
156 ### Evaluate POST parameters ###
157
158 if ($cgiparams{"ACTION"} eq $Lang::tr{"save"}) {
159         my %VALIDATE_nic_check = ();
160         my $VALIDATE_error = "";
161
162         foreach (@zones) {
163                 my $uc = uc $_;
164                 my $slave_string = "";
165                 my $zone_mode = $cgiparams{"MODE $uc"};
166                 my $VALIDATE_vlancount = 0;
167                 my $VALIDATE_zoneslaves = 0;
168
169                 $ethsettings{"${uc}_MACADDR"} = "";
170                 $ethsettings{"${uc}_MODE"} = "";
171                 $ethsettings{"${uc}_SLAVES"} = "";
172                 $vlansettings{"${uc}_PARENT_DEV"} = "";
173                 $vlansettings{"${uc}_VLAN_ID"} = "";
174                 $vlansettings{"${uc}_MAC_ADDRESS"} = "";
175
176                 # If RED is not in DHCP or static mode, we only set its MACADDR property
177                 if ($uc eq "RED" && ! $cgiparams{"PPPACCESS"} eq "") {
178                         foreach (@nics) {
179                                 my $mac = $_->[0];
180
181                                 if ($mac eq $cgiparams{"PPPACCESS"}) {
182                                         $ethsettings{"${uc}_MACADDR"} = $mac;
183
184                                         # Check if this interface is already accessed by any other zone
185                                         # If this is the case, show an error message
186                                         if ($VALIDATE_nic_check{"ACC $mac"}) {
187                                                 $VALIDATE_error = $Lang::tr{"zoneconf val ppp assignment error"};
188                                         }
189
190                                         $VALIDATE_nic_check{"RESTRICT $mac"} = 1;
191                                         last;
192                                 }
193                         }
194
195                         next;
196                 }
197
198                 foreach (@nics) {
199                         my $mac = $_->[0];
200                         my $nic_access = $cgiparams{"ACCESS $uc $mac"};
201
202                         if ($nic_access ne "NONE") {
203                                 if ($VALIDATE_nic_check{"RESTRICT $mac"}) { # If this interface is already assigned to RED in PPP mode, throw an error
204                                         $VALIDATE_error = $Lang::tr{"zoneconf val ppp assignment error"};
205                                         last;
206                                 }
207
208                                 if ($zone_mode ne "BRIDGE" && $VALIDATE_zoneslaves > 0 && $nic_access ne "") {
209                                         $VALIDATE_error = $Lang::tr{"zoneconf val zoneslave amount error"};
210                                         last;
211                                 }
212
213                                 $VALIDATE_nic_check{"ACC $mac"} = 1;
214                                 $VALIDATE_zoneslaves++;
215                         }
216
217                         if ($nic_access eq "NATIVE") {
218                                 if ($VALIDATE_nic_check{"NATIVE $mac"}) {
219                                         $VALIDATE_error = $Lang::tr{"zoneconf val native assignment error"};
220                                         last;
221                                 }
222
223                                 $VALIDATE_nic_check{"NATIVE $mac"} = 1;
224
225                                 if ($zone_mode eq "BRIDGE") {
226                                         $slave_string = "${slave_string}${mac} ";
227                                 } else {
228                                         $ethsettings{"${uc}_MACADDR"} = $mac;
229                                 }
230                         } elsif ($nic_access eq "VLAN") {
231                                 my $vlan_tag = $cgiparams{"TAG $uc $mac"};
232
233                                 if ($VALIDATE_nic_check{"VLAN $mac $vlan_tag"}) {
234                                         $VALIDATE_error = $Lang::tr{"zoneconf val vlan tag assignment error"};
235                                         last;
236                                 }
237
238                                 $VALIDATE_nic_check{"VLAN $mac $vlan_tag"} = 1;
239
240                                 if (! looks_like_number($vlan_tag)) {
241                                         last;
242                                 }
243                                 if ($vlan_tag < 1 || $vlan_tag > 4095) {
244                                         last;
245                                 }
246
247                                 my $rnd_mac = &Network::random_mac();
248
249                                 $vlansettings{"${uc}_PARENT_DEV"} = $mac;
250                                 $vlansettings{"${uc}_VLAN_ID"} = $vlan_tag;
251                                 $vlansettings{"${uc}_MAC_ADDRESS"} = $rnd_mac;
252
253                                 if ($zone_mode eq "BRIDGE") {
254                                         $slave_string = "${slave_string}${rnd_mac} ";
255                                 }
256
257                                 $VALIDATE_vlancount++; # We can't allow more than one VLAN per zone
258                         }
259                 }
260
261                 if ($VALIDATE_vlancount > 1) {
262                         $VALIDATE_error = $Lang::tr{"zoneconf val vlan amount assignment error"};
263                         last;
264                 }
265
266                 chop($slave_string);
267
268                 if ($zone_mode eq "BRIDGE") {
269                         $ethsettings{"${uc}_MODE"} = "bridge";
270                         $ethsettings{"${uc}_SLAVES"} = $slave_string;
271                 } elsif ($zone_mode eq "MACVTAP") {
272                         $ethsettings{"${uc}_MODE"} = "macvtap";
273                 }
274         }
275
276         if ($VALIDATE_error) {
277                 &Header::openbox('100%', 'left', $Lang::tr{"error"});
278
279                 print "$VALIDATE_error<br><a href='/cgi-bin/zoneconf.cgi'><button>$Lang::tr{'ok'}</button></a>";
280
281                 &Header::closebox();
282                 &Header::closebigbox();
283                 &Header::closepage();
284
285                 exit 0;
286         }
287
288         &General::writehash("${General::swroot}/ethernet/settings",\%ethsettings);
289         &General::writehash("${General::swroot}/ethernet/vlans",\%vlansettings);
290 }
291
292 &Header::openbox('100%', 'left', $Lang::tr{"zoneconf nic assignment"});
293
294 ### START OF TABLE ###
295
296 print <<END
297         <form method='post' enctype='multipart/form-data'>
298                 <table>
299                         <tr>
300                         <td class="h topleft" /td>
301 END
302 ;
303
304 # Fill the table header with all physical NICs
305 foreach (@nics) {
306         my $mac = $_->[0];
307         my $nic = $_->[1];
308
309         print "<td class='h textcenter'>$nic<br>$mac</td>";
310 }
311
312 print "</tr>";
313
314 foreach (@zones) {
315         my $uc = uc $_;
316         my $dev_name = $ethsettings{"${uc}_DEV"};
317
318         if ($dev_name eq "") { # If the zone is not activated, don't show it
319                 next;
320         }
321
322         print "<tr>";
323
324         if ($uc eq "RED") {
325                 my $red_type = $ethsettings{"RED_TYPE"};
326                 my $red_restricted = ($uc eq "RED" && ! ($red_type eq "STATIC" || $red_type eq "DHCP"));
327
328                 # VLANs/Bridging is not possible if the RED interface is set to PPP, PPPoE, VDSL, ...
329                 if ($red_restricted) {
330                         print "<td class='h $_'>$uc<br>($red_type)</td>";
331
332                         foreach (@nics) {
333                                 my $mac = $_->[0];
334                                 my $checked = "";
335
336                                 if ($mac eq $ethsettings{"${uc}_MACADDR"}) {
337                                         $checked = "checked";
338                                 }
339
340                                 print "<td class='textcenter'><input type='radio' id='PPPACCESS $mac' name='PPPACCESS' value='$mac' $checked></td>";
341                         }
342
343                         print "</tr>";
344                         next; # We're done here
345                 }
346         }
347
348         my %mode_selected = ();
349         my $zone_mode = $ethsettings{"${uc}_MODE"};
350
351         if ($zone_mode eq "") {
352                 $mode_selected{"DEFAULT"} = "selected";
353         } elsif ($zone_mode eq "bridge") {
354                 $mode_selected{"BRIDGE"} = "selected";
355         } elsif ($zone_mode eq "macvtap") {
356                 $mode_selected{"MACVTAP"} = "selected";
357         }
358
359         print <<END
360                 <td class='h $_'>$uc<br>
361                         <select name="MODE $uc">
362                                 <option value="DEFAULT" $mode_selected{"DEFAULT"}>$Lang::tr{"zoneconf nicmode default"}</option>
363                                 <option value="BRIDGE" $mode_selected{"BRIDGE"}>$Lang::tr{"zoneconf nicmode bridge"}</option>
364                                 <option value="MACVTAP" $mode_selected{"MACVTAP"}>$Lang::tr{"zoneconf nicmode macvtap"}</option>
365                         </select>
366                 </td>
367 END
368 ;
369
370         # ZONE_PARENT_DEV is set if this zone accesses any interface via a VLAN
371         my $zone_parent_dev = $vlansettings{"${uc}_PARENT_DEV"};
372
373         # If ZONE_PARENT_DEV is set to a NICs name (e.g. green0 or eth0) instead of a MAC address, we have to find out this NICs MAC address
374         $zone_parent_dev = &Network::get_mac_by_name($zone_parent_dev);
375
376         foreach (@nics) { # Check for all nics if they are assigned to the current zone
377                 my %access_selected = ();
378                 my $mac = $_->[0];
379                 my $wlan = $_->[2];
380                 my $field_disabled = "disabled"; # Only enable the VLAN ID input field if the current access mode is VLAN
381                 my $zone_vlan_id = "";
382
383                 # If the current NIC is accessed by the current zone via a VLAN, the ZONE_PARENT_DEV option corresponds to the current NIC
384                 if ($mac eq $zone_parent_dev) {
385                         $access_selected{"VLAN"} = "selected";
386                         $field_disabled = "";
387                         $zone_vlan_id = $vlansettings{"${uc}_VLAN_ID"};
388                 }
389
390                 # If the current zone is in bridge mode, all corresponding NICs (Native as well as VLAN) are set via the ZONE_SLAVES option
391                 if ($zone_mode eq "bridge") {
392                         my @slaves = split(/ /, $ethsettings{"${uc}_SLAVES"});
393
394                         foreach (@slaves) {
395                                 # Slaves can be set to a NICs name so we have to find out its MAC address
396                                 $_ = &Network::get_mac_by_name($_);
397
398                                 if ($_ eq $mac) {
399                                         $access_selected{"NATIVE"} = "selected";
400                                         last;
401                                 }
402                         }
403                 } else { # Native access via ZONE_MACADDR is only set if the zone does not access a NIC via a VLAN and the zone is not in bridge mode
404                         if ($mac eq $ethsettings{"${uc}_MACADDR"}) {
405                                 $access_selected{"NATIVE"} = "selected";
406                         }
407                 }
408
409                 $access_selected{"NONE"} = ($access_selected{"NATIVE"} eq "") && ($access_selected{"VLAN"} eq "") ? "selected" : "";
410                 my $vlan_disabled = ($wlan) ? "disabled" : "";
411
412                 print <<END
413                         <td class="textcenter">
414                                 <select name="ACCESS $uc $mac" onchange="document.getElementById('TAG $uc $mac').disabled = (this.value === 'VLAN' ? false : true)">
415                                         <option value="NONE" $access_selected{"NONE"}>- $Lang::tr{"zoneconf access none"} -</option>
416                                         <option value="NATIVE" $access_selected{"NATIVE"}>$Lang::tr{"zoneconf access native"}</option>
417                                         <option value="VLAN" $access_selected{"VLAN"} $vlan_disabled>$Lang::tr{"zoneconf access vlan"}</option>
418                                 </select>
419                                 <input type="number" id="TAG $uc $mac" name="TAG $uc $mac" min="1" max="4095" value="$zone_vlan_id" $field_disabled>
420                         </td>
421 END
422 ;
423
424         }
425         print "</tr>";
426 }
427
428 print <<END
429         </table>
430
431         <div id="submit-container">
432                 <input type="submit" name="ACTION" value="$Lang::tr{"save"}">
433         </div>
434 </form>
435 END
436 ;
437
438 ### END OF TABLE ###
439
440 &Header::closebox();
441 &Header::closebigbox();
442 &Header::closepage();