html/cgi-bin/zoneconf.cgi

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # VLAN Management for IPFire                                                  #
   5 # Copyright (C) 2019 Florian Bührle <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 $VALIDATE_zoneslaves = 0;
 168
 169                 if ($zone_mode eq "") { # If this zone is not activated, we don't check it
 170                         next;
 171                 }
 172
 173                 $ethsettings{"${uc}_MACADDR"} = "";
 174                 $ethsettings{"${uc}_MODE"} = "";
 175                 $ethsettings{"${uc}_SLAVES"} = "";
 176                 $vlansettings{"${uc}_PARENT_DEV"} = "";
 177                 $vlansettings{"${uc}_VLAN_ID"} = "";
 178                 $vlansettings{"${uc}_MAC_ADDRESS"} = "";
 179
 180                 # If RED is not in DHCP or static mode, we only set its MACADDR property
 181                 if ($uc eq "RED" && ! $cgiparams{"PPPACCESS"} eq "") {
 182                         foreach (@nics) {
 183                                 my $mac = $_->[0];
 184
 185                                 if ($mac eq $cgiparams{"PPPACCESS"}) {
 186                                         $ethsettings{"${uc}_MACADDR"} = $mac;
 187
 188                                         # Check if this interface is already accessed by any other zone
 189                                         # If this is the case, show an error message
 190                                         if ($VALIDATE_nic_check{"ACC $mac"}) {
 191                                                 $VALIDATE_error = $Lang::tr{"zoneconf val ppp assignment error"};
 192                                         }
 193
 194                                         $VALIDATE_nic_check{"RESTRICT $mac"} = 1;
 195                                         last;
 196                                 }
 197                         }
 198
 199                         next;
 200                 }
 201
 202                 foreach (@nics) {
 203                         my $mac = $_->[0];
 204                         my $nic_access = $cgiparams{"ACCESS $uc $mac"};
 205
 206                         if (! ($nic_access eq "NONE")) {
 207                                 if ($VALIDATE_nic_check{"RESTRICT $mac"}) { # If this interface is already assigned to RED in PPP mode, throw an error
 208                                         $VALIDATE_error = $Lang::tr{"zoneconf val ppp assignment error"};
 209                                         last;
 210                                 }
 211
 212                                 if ($zone_mode ne "BRIDGE" && $VALIDATE_zoneslaves > 0) {
 213                                         $VALIDATE_error = $Lang::tr{"zoneconf val zoneslave amount error"};
 214                                         last;
 215                                 }
 216
 217                                 $VALIDATE_nic_check{"ACC $mac"} = 1;
 218                                 $VALIDATE_zoneslaves++;
 219                         }
 220
 221                         if ($nic_access eq "NATIVE") {
 222                                 if ($VALIDATE_nic_check{"NATIVE $mac"}) {
 223                                         $VALIDATE_error = $Lang::tr{"zoneconf val native assignment error"};
 224                                         last;
 225                                 }
 226
 227                                 $VALIDATE_nic_check{"NATIVE $mac"} = 1;
 228
 229                                 if ($zone_mode eq "BRIDGE") {
 230                                         $slave_string = "${slave_string}${mac} ";
 231                                 } else {
 232                                         $ethsettings{"${uc}_MACADDR"} = $mac;
 233                                 }
 234                         } elsif ($nic_access eq "VLAN") {
 235                                 my $vlan_tag = $cgiparams{"TAG $uc $mac"};
 236
 237                                 if ($VALIDATE_nic_check{"VLAN $mac $vlan_tag"}) {
 238                                         $VALIDATE_error = $Lang::tr{"zoneconf val vlan tag assignment error"};
 239                                         last;
 240                                 }
 241
 242                                 $VALIDATE_nic_check{"VLAN $mac $vlan_tag"} = 1;
 243
 244                                 if (! looks_like_number($vlan_tag)) {
 245                                         last;
 246                                 }
 247                                 if ($vlan_tag < 1 || $vlan_tag > 4095) {
 248                                         last;
 249                                 }
 250
 251                                 my $rnd_mac = &Network::random_mac();
 252
 253                                 $vlansettings{"${uc}_PARENT_DEV"} = $mac;
 254                                 $vlansettings{"${uc}_VLAN_ID"} = $vlan_tag;
 255                                 $vlansettings{"${uc}_MAC_ADDRESS"} = $rnd_mac;
 256
 257                                 if ($zone_mode eq "BRIDGE") {
 258                                         $slave_string = "${slave_string}${rnd_mac} ";
 259                                 }
 260
 261                                 $VALIDATE_vlancount++; # We can't allow more than one VLAN per zone
 262                         }
 263                 }
 264
 265                 if ($VALIDATE_vlancount > 1) {
 266                         $VALIDATE_error = $Lang::tr{"zoneconf val vlan amount assignment error"};
 267                         last;
 268                 }
 269
 270                 chop($slave_string);
 271
 272                 if ($zone_mode eq "BRIDGE") {
 273                         $ethsettings{"${uc}_MODE"} = "bridge";
 274                         $ethsettings{"${uc}_SLAVES"} = $slave_string;
 275                 } elsif ($zone_mode eq "MACVTAP") {
 276                         $ethsettings{"${uc}_MODE"} = "macvtap";
 277                 }
 278         }
 279
 280         if ($VALIDATE_error) {
 281                 &Header::openbox('100%', 'left', $Lang::tr{"error"});
 282
 283                 print "$VALIDATE_error<br><a href='/cgi-bin/zoneconf.cgi'><button>$Lang::tr{'ok'}</button></a>";
 284
 285                 &Header::closebox();
 286                 &Header::closebigbox();
 287                 &Header::closepage();
 288
 289                 exit 0;
 290         }
 291
 292         &General::writehash("${General::swroot}/ethernet/settings",\%ethsettings);
 293         &General::writehash("${General::swroot}/ethernet/vlans",\%vlansettings);
 294 }
 295
 296 &Header::openbox('100%', 'left', $Lang::tr{"zoneconf nic assignment"});
 297
 298 ### START OF TABLE ###
 299
 300 print <<END
 301         <form method='post' enctype='multipart/form-data'>
 302                 <table>
 303                         <tr>
 304                         <td class="h topleft" /td>
 305 END
 306 ;
 307
 308 # Fill the table header with all physical NICs
 309 foreach (@nics) {
 310         my $mac = $_->[0];
 311         my $nic = $_->[1];
 312
 313         print "<td class='h textcenter'>$nic<br>$mac</td>";
 314 }
 315
 316 print "</tr>";
 317
 318 foreach (@zones) {
 319         my $uc = uc $_;
 320         my $dev_name = $ethsettings{"${uc}_DEV"};
 321
 322         if ($dev_name eq "") { # If the zone is not activated, don't show it
 323                 next;
 324         }
 325
 326         print "<tr>";
 327
 328         if ($uc eq "RED") {
 329                 my $red_type = $ethsettings{"RED_TYPE"};
 330                 my $red_restricted = ($uc eq "RED" && ! ($red_type eq "STATIC" || $red_type eq "DHCP"));
 331
 332                 # VLANs/Bridging is not possible if the RED interface is set to PPP, PPPoE, VDSL, ...
 333                 if ($red_restricted) {
 334                         print "<td class='h $_'>$uc<br>($red_type)</td>";
 335
 336                         foreach (@nics) {
 337                                 my $mac = $_->[0];
 338                                 my $checked = "";
 339
 340                                 if ($mac eq $ethsettings{"${uc}_MACADDR"}) {
 341                                         $checked = "checked";
 342                                 }
 343
 344                                 print "<td class='textcenter'><input type='radio' id='PPPACCESS $mac' name='PPPACCESS' value='$mac' $checked></td>";
 345                         }
 346
 347                         print "</tr>";
 348                         next; # We're done here
 349                 }
 350         }
 351
 352         my %mode_selected = ();
 353         my $zone_mode = $ethsettings{"${uc}_MODE"};
 354
 355         if ($zone_mode eq "") {
 356                 $mode_selected{"DEFAULT"} = "selected";
 357         } elsif ($zone_mode eq "bridge") {
 358                 $mode_selected{"BRIDGE"} = "selected";
 359         } elsif ($zone_mode eq "macvtap") {
 360                 $mode_selected{"MACVTAP"} = "selected";
 361         }
 362
 363         print <<END
 364                 <td class='h $_'>$uc<br>
 365                         <select name="MODE $uc">
 366                                 <option value="DEFAULT" $mode_selected{"DEFAULT"}>$Lang::tr{"zoneconf nicmode default"}</option>
 367                                 <option value="BRIDGE" $mode_selected{"BRIDGE"}>$Lang::tr{"zoneconf nicmode bridge"}</option>
 368                                 <option value="MACVTAP" $mode_selected{"MACVTAP"}>$Lang::tr{"zoneconf nicmode macvtap"}</option>
 369                         </select>
 370                 </td>
 371 END
 372 ;
 373
 374         # ZONE_PARENT_DEV is set if this zone accesses any interface via a VLAN
 375         my $zone_parent_dev = $vlansettings{"${uc}_PARENT_DEV"};
 376
 377         # 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
 378         $zone_parent_dev = &Network::get_mac_by_name($zone_parent_dev);
 379
 380         foreach (@nics) { # Check for all nics if they are assigned to the current zone
 381                 my %access_selected = ();
 382                 my $mac = $_->[0];
 383                 my $wlan = $_->[2];
 384                 my $field_disabled = "disabled"; # Only enable the VLAN ID input field if the current access mode is VLAN
 385                 my $zone_vlan_id = "";
 386
 387                 # If the current NIC is accessed by the current zone via a VLAN, the ZONE_PARENT_DEV option corresponds to the current NIC
 388                 if ($mac eq $zone_parent_dev) {
 389                         $access_selected{"VLAN"} = "selected";
 390                         $field_disabled = "";
 391                         $zone_vlan_id = $vlansettings{"${uc}_VLAN_ID"};
 392                 }
 393
 394                 # If the current zone is in bridge mode, all corresponding NICs (Native as well as VLAN) are set via the ZONE_SLAVES option
 395                 if ($zone_mode eq "bridge") {
 396                         my @slaves = split(/ /, $ethsettings{"${uc}_SLAVES"});
 397
 398                         foreach (@slaves) {
 399                                 # Slaves can be set to a NICs name so we have to find out its MAC address
 400                                 $_ = &Network::get_mac_by_name($_);
 401
 402                                 if ($_ eq $mac) {
 403                                         $access_selected{"NATIVE"} = "selected";
 404                                         last;
 405                                 }
 406                         }
 407                 } else { # Native access via ZONE_MACADDR is only set if the zone does not access a NIC via a VLAN and the zone is not in bridge mode
 408                         if ($mac eq $ethsettings{"${uc}_MACADDR"}) {
 409                                 $access_selected{"NATIVE"} = "selected";
 410                         }
 411                 }
 412
 413                 $access_selected{"NONE"} = ($access_selected{"NATIVE"} eq "") && ($access_selected{"VLAN"} eq "") ? "selected" : "";
 414                 my $vlan_disabled = ($wlan) ? "disabled" : "";
 415
 416                 print <<END
 417                         <td class="textcenter">
 418                                 <select name="ACCESS $uc $mac" onchange="document.getElementById('TAG $uc $mac').disabled = (this.value === 'VLAN' ? false : true)">
 419                                         <option value="NONE" $access_selected{"NONE"}>- $Lang::tr{"zoneconf access none"} -</option>
 420                                         <option value="NATIVE" $access_selected{"NATIVE"}>$Lang::tr{"zoneconf access native"}</option>
 421                                         <option value="VLAN" $access_selected{"VLAN"} $vlan_disabled>$Lang::tr{"zoneconf access vlan"}</option>
 422                                 </select>
 423                                 <input type="number" id="TAG $uc $mac" name="TAG $uc $mac" min="1" max="4095" value="$zone_vlan_id" $field_disabled>
 424                         </td>
 425 END
 426 ;
 427
 428         }
 429         print "</tr>";
 430 }
 431
 432 print <<END
 433         </table>
 434
 435         <div id="submit-container">
 436                 <input type="submit" name="ACTION" value="$Lang::tr{"save"}">
 437         </div>
 438 </form>
 439 END
 440 ;
 441
 442 ### END OF TABLE ###
 443
 444 &Header::closebox();
 445 &Header::closebigbox();
 446 &Header::closepage();