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         border-collapse: collapse;
  34         table-layout: fixed;
  35         }
  36
  37         tr {
  38                 height: 4em;
  39         }
  40
  41     tr.thin {
  42         height: 3em;
  43     }
  44
  45         td.narrow {
  46                 width: 11em;
  47         }
  48
  49         td {
  50                 padding: 5px;
  51                 padding-left: 10px;
  52                 padding-right: 10px;
  53                 border: 0.5px solid black;
  54         }
  55
  56     td.slightlygrey {
  57         background-color: #F0F0F0;
  58     }
  59
  60         td.h {
  61                 background-color: grey;
  62                 color: white;
  63                 font-weight: 800;
  64         }
  65
  66         td.green {
  67                 background-color: $Header::colourgreen;
  68         }
  69
  70         td.red {
  71                 background-color: $Header::colourred;
  72         }
  73
  74         td.blue {
  75                 background-color: $Header::colourblue;
  76         }
  77
  78         td.orange {
  79                 background-color: $Header::colourorange;
  80         }
  81
  82         td.topleft {
  83                 background-color: white;
  84                 border-top-style: none;
  85                 border-left-style: none;
  86         }
  87
  88         td.disabled {
  89                 background-color: #cccccc;
  90         }
  91
  92         td.textcenter {
  93                 text-align: center;
  94         }
  95
  96         #submit-container {
  97                 width: 100%;
  98         padding-top: 20px;
  99                 text-align: right;
 100         color: red;
 101         }
 102
 103         #submit-container.input {
 104                 margin-left: auto;
 105         }
 106
 107         button {
 108                 margin-top: 1em;
 109         }
 110 </style>
 111 END
 112 ;
 113
 114 my %ethsettings = ();
 115 my %vlansettings = ();
 116 my %cgiparams = ();
 117
 118 my $restart_notice = "";
 119
 120 &General::readhash("${General::swroot}/ethernet/settings",\%ethsettings);
 121 &General::readhash("${General::swroot}/ethernet/vlans",\%vlansettings);
 122
 123 &Header::getcgihash(\%cgiparams);
 124 &Header::showhttpheaders();
 125
 126 # Define all zones we will check for NIC assignment
 127 my @zones = ("green", "red", "orange", "blue");
 128
 129 # Get all physical NICs present
 130 opendir(my $dh, "/sys/class/net/");
 131 my @nics = ();
 132
 133 while (my $nic = readdir($dh)) {
 134         if (-e "/sys/class/net/$nic/device") { # Indicates that the NIC is physical
 135                 push(@nics, [&Network::get_nic_property($nic, "address"), $nic, 0]);
 136         }
 137 }
 138
 139 closedir($dh);
 140
 141 @nics = sort {$a->[0] cmp $b->[0]} @nics; # Sort nics by their MAC address
 142
 143 # Name the physical NICs
 144 # Even though they may not be really named like this, we will name them ethX or wlanX
 145 my $ethcount = 0;
 146 my $wlancount = 0;
 147
 148 foreach (@nics) {
 149         my $nic = $_->[1];
 150
 151         if (-e "/sys/class/net/$nic/wireless") {
 152                 $_->[1] = "wlan$wlancount";
 153                 $_->[2] = 1;
 154                 $wlancount++;
 155         } else {
 156                 $_->[1] = "eth$ethcount";
 157                 $ethcount++;
 158         }
 159 }
 160
 161 &Header::openpage($Lang::tr{"zoneconf title"}, 1, $css);
 162 &Header::openbigbox('100%', 'center');
 163
 164 ### Evaluate POST parameters ###
 165
 166 if ($cgiparams{"ACTION"} eq $Lang::tr{"save"}) {
 167         my %VALIDATE_nic_check = ();
 168         my $VALIDATE_error = "";
 169
 170         foreach (@zones) {
 171                 my $uc = uc $_;
 172                 my $slave_string = "";
 173                 my $zone_mode = $cgiparams{"MODE $uc"};
 174                 my $VALIDATE_vlancount = 0;
 175                 my $VALIDATE_zoneslaves = 0;
 176
 177                 $ethsettings{"${uc}_MACADDR"} = "";
 178                 $ethsettings{"${uc}_MODE"} = "";
 179                 $ethsettings{"${uc}_SLAVES"} = "";
 180                 $vlansettings{"${uc}_PARENT_DEV"} = "";
 181                 $vlansettings{"${uc}_VLAN_ID"} = "";
 182                 $vlansettings{"${uc}_MAC_ADDRESS"} = "";
 183
 184                 # If RED is not in DHCP or static mode, we only set its MACADDR property
 185                 if ($uc eq "RED" && ! $cgiparams{"PPPACCESS"} eq "") {
 186                         foreach (@nics) {
 187                                 my $mac = $_->[0];
 188
 189                                 if ($mac eq $cgiparams{"PPPACCESS"}) {
 190                                         $ethsettings{"${uc}_MACADDR"} = $mac;
 191
 192                                         # Check if this interface is already accessed by any other zone
 193                                         # If this is the case, show an error message
 194                                         if ($VALIDATE_nic_check{"ACC $mac"}) {
 195                                                 $VALIDATE_error = $Lang::tr{"zoneconf val ppp assignment error"};
 196                                         }
 197
 198                                         $VALIDATE_nic_check{"RESTRICT $mac"} = 1;
 199                                         last;
 200                                 }
 201                         }
 202
 203                         next;
 204                 }
 205
 206                 foreach (@nics) {
 207                         my $mac = $_->[0];
 208                         my $nic_access = $cgiparams{"ACCESS $uc $mac"};
 209
 210                         if ($nic_access ne "NONE") {
 211                                 if ($VALIDATE_nic_check{"RESTRICT $mac"}) { # If this interface is already assigned to RED in PPP mode, throw an error
 212                                         $VALIDATE_error = $Lang::tr{"zoneconf val ppp assignment error"};
 213                                         last;
 214                                 }
 215
 216                                 if ($zone_mode ne "BRIDGE" && $VALIDATE_zoneslaves > 0 && $nic_access ne "") {
 217                                         $VALIDATE_error = $Lang::tr{"zoneconf val zoneslave amount error"};
 218                                         last;
 219                                 }
 220
 221                                 $VALIDATE_nic_check{"ACC $mac"} = 1;
 222                                 $VALIDATE_zoneslaves++;
 223                         }
 224
 225                         if ($nic_access eq "NATIVE") {
 226                                 if ($VALIDATE_nic_check{"NATIVE $mac"}) {
 227                                         $VALIDATE_error = $Lang::tr{"zoneconf val native assignment error"};
 228                                         last;
 229                                 }
 230
 231                                 $VALIDATE_nic_check{"NATIVE $mac"} = 1;
 232
 233                                 if ($zone_mode eq "BRIDGE") {
 234                                         $slave_string = "${slave_string}${mac} ";
 235                                 } else {
 236                                         $ethsettings{"${uc}_MACADDR"} = $mac;
 237                                 }
 238                         } elsif ($nic_access eq "VLAN") {
 239                                 my $vlan_tag = $cgiparams{"TAG $uc $mac"};
 240
 241                                 if ($VALIDATE_nic_check{"VLAN $mac $vlan_tag"}) {
 242                                         $VALIDATE_error = $Lang::tr{"zoneconf val vlan tag assignment error"};
 243                                         last;
 244                                 }
 245
 246                                 $VALIDATE_nic_check{"VLAN $mac $vlan_tag"} = 1;
 247
 248                                 if (! looks_like_number($vlan_tag)) {
 249                                         last;
 250                                 }
 251                                 if ($vlan_tag < 1 || $vlan_tag > 4095) {
 252                                         last;
 253                                 }
 254
 255                                 my $rnd_mac = &Network::random_mac();
 256
 257                                 $vlansettings{"${uc}_PARENT_DEV"} = $mac;
 258                                 $vlansettings{"${uc}_VLAN_ID"} = $vlan_tag;
 259                                 $vlansettings{"${uc}_MAC_ADDRESS"} = $rnd_mac;
 260
 261                                 if ($zone_mode eq "BRIDGE") {
 262                                         $slave_string = "${slave_string}${rnd_mac} ";
 263                                 }
 264
 265                                 $VALIDATE_vlancount++; # We can't allow more than one VLAN per zone
 266                         }
 267                 }
 268
 269                 if ($VALIDATE_vlancount > 1) {
 270                         $VALIDATE_error = $Lang::tr{"zoneconf val vlan amount assignment error"};
 271                         last;
 272                 }
 273
 274                 chop($slave_string);
 275
 276                 if ($zone_mode eq "BRIDGE") {
 277                         $ethsettings{"${uc}_MODE"} = "bridge";
 278                         $ethsettings{"${uc}_SLAVES"} = $slave_string;
 279                 } elsif ($zone_mode eq "MACVTAP") {
 280                         $ethsettings{"${uc}_MODE"} = "macvtap";
 281                 }
 282         }
 283
 284         if ($VALIDATE_error) {
 285                 &Header::openbox('100%', 'left', $Lang::tr{"error"});
 286
 287                 print "$VALIDATE_error<br><a href='/cgi-bin/zoneconf.cgi'><button>$Lang::tr{'ok'}</button></a>";
 288
 289                 &Header::closebox();
 290                 &Header::closebigbox();
 291                 &Header::closepage();
 292
 293                 exit 0;
 294         }
 295
 296         &General::writehash("${General::swroot}/ethernet/settings",\%ethsettings);
 297         &General::writehash("${General::swroot}/ethernet/vlans",\%vlansettings);
 298
 299     $restart_notice = $Lang::tr{'zoneconf notice reboot'};
 300 }
 301
 302 &Header::openbox('100%', 'left', $Lang::tr{"zoneconf nic assignment"});
 303
 304 ### START OF TABLE ###
 305
 306 print <<END
 307 <form method='post' enctype='multipart/form-data'>
 308     <table>
 309         <tr>
 310         <td class="h narrow topleft" /td>
 311 END
 312 ;
 313
 314 # Fill the table header with all activated zones
 315 foreach (@zones) {
 316         my $uc = uc $_;
 317     my $dev_name = $ethsettings{"${uc}_DEV"};
 318
 319     if ($dev_name eq "") { # If the zone is not activated, don't show it
 320         next;
 321     }
 322
 323     # If the zone is in PPP mode, don't show a mode dropdown
 324     if ($uc eq "RED") {
 325                 my $red_type = $ethsettings{"RED_TYPE"};
 326                 my $red_restricted = ($uc eq "RED" && ! ($red_type eq "STATIC" || $red_type eq "DHCP"));
 327
 328                 if ($red_restricted) {
 329                         print "<td class='h textcenter $_'>$uc ($red_type)</td>";
 330
 331                         next; # We're done here
 332                 }
 333         }
 334
 335         my %mode_selected = ();
 336         my $zone_mode = $ethsettings{"${uc}_MODE"};
 337
 338         if ($zone_mode eq "") {
 339                 $mode_selected{"DEFAULT"} = "selected";
 340         } elsif ($zone_mode eq "bridge") {
 341                 $mode_selected{"BRIDGE"} = "selected";
 342         } elsif ($zone_mode eq "macvtap") {
 343                 $mode_selected{"MACVTAP"} = "selected";
 344         }
 345
 346         print <<END
 347                 <td class='h textcenter $_'>$uc</br>
 348                         <select name="MODE $uc">
 349                                 <option value="DEFAULT" $mode_selected{"DEFAULT"}>$Lang::tr{"zoneconf nicmode default"}</option>
 350                                 <option value="BRIDGE" $mode_selected{"BRIDGE"}>$Lang::tr{"zoneconf nicmode bridge"}</option>
 351                                 <option value="MACVTAP" $mode_selected{"MACVTAP"}>$Lang::tr{"zoneconf nicmode macvtap"}</option>
 352                         </select>
 353                 </td>
 354 END
 355 ;
 356 }
 357
 358 print "</tr>";
 359
 360 my $slightlygrey = "";
 361
 362 foreach (@nics) {
 363     my $mac = $_->[0];
 364         my $nic = $_->[1];
 365     my $wlan = $_->[2];
 366
 367         print "<tr><td class='h narrow textcenter'>$nic<br>$mac</td>";
 368
 369     # Iterate through all zones and check if the current NIC is assigned to it
 370     foreach (@zones) {
 371         my $uc = uc $_;
 372         my $dev_name = $ethsettings{"${uc}_DEV"};
 373
 374         if ($dev_name eq "") { # Again, skip the zone if it is not activated
 375             next;
 376         }
 377
 378         if ($uc eq "RED") {
 379             my $red_type = $ethsettings{"RED_TYPE"};
 380             my $red_restricted = ($uc eq "RED" && ! ($red_type eq "STATIC" || $red_type eq "DHCP"));
 381
 382                     # VLANs/Bridging is not possible if the RED interface is set to PPP, PPPoE, VDSL, ...
 383                     if ($red_restricted) {
 384                 my $checked = "";
 385
 386                                 if ($mac eq $ethsettings{"${uc}_MACADDR"}) {
 387                                         $checked = "checked";
 388                                 }
 389
 390                                 print "<td class='textcenter $slightlygrey'><input type='radio' id='PPPACCESS $mac' name='PPPACCESS' value='$mac' $checked></td>";
 391                             next; # We're done here
 392                     }
 393             }
 394
 395         my %access_selected = ();
 396         my $zone_mode = $ethsettings{"${uc}_MODE"};
 397         my $zone_parent_dev = $vlansettings{"${uc}_PARENT_DEV"};  # ZONE_PARENT_DEV is set if this zone accesses any interface via a VLAN
 398         my $field_disabled = "disabled"; # Only enable the VLAN ID input field if the current access mode is VLAN
 399                 my $zone_vlan_id = "";
 400
 401         # 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
 402         $zone_parent_dev = &Network::get_mac_by_name($zone_parent_dev);
 403
 404         # If the current NIC is accessed by the current zone via a VLAN, the ZONE_PARENT_DEV option corresponds to the current NIC
 405         if ($mac eq $zone_parent_dev) {
 406                         $access_selected{"VLAN"} = "selected";
 407                         $field_disabled = "";
 408                         $zone_vlan_id = $vlansettings{"${uc}_VLAN_ID"};
 409                 } elsif ($zone_mode eq "bridge") { # If the current zone is in bridge mode, all corresponding NICs (Native as well as VLAN) are set via the ZONE_SLAVES option
 410                         my @slaves = split(/ /, $ethsettings{"${uc}_SLAVES"});
 411
 412                         foreach (@slaves) {
 413                                 # Slaves can be set to a NICs name so we have to find out its MAC address
 414                                 $_ = &Network::get_mac_by_name($_);
 415
 416                                 if ($_ eq $mac) {
 417                                         $access_selected{"NATIVE"} = "selected";
 418                                         last;
 419                                 }
 420                         }
 421                 } elsif ($mac eq $ethsettings{"${uc}_MACADDR"}) { # 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
 422                         $access_selected{"NATIVE"} = "selected";
 423                 }
 424
 425         $access_selected{"NONE"} = ($access_selected{"NATIVE"} eq "") && ($access_selected{"VLAN"} eq "") ? "selected" : "";
 426                 my $vlan_disabled = ($wlan) ? "disabled" : "";
 427
 428         print <<END
 429             <td class="textcenter $slightlygrey">
 430                 <select name="ACCESS $uc $mac" onchange="document.getElementById('TAG $uc $mac').disabled = (this.value === 'VLAN' ? false : true)">
 431                     <option value="NONE" $access_selected{"NONE"}>- $Lang::tr{"zoneconf access none"} -</option>
 432                     <option value="NATIVE" $access_selected{"NATIVE"}>$Lang::tr{"zoneconf access native"}</option>
 433                     <option value="VLAN" $access_selected{"VLAN"} $vlan_disabled>$Lang::tr{"zoneconf access vlan"}</option>
 434                 </select>
 435                 <input type="number" id="TAG $uc $mac" name="TAG $uc $mac" min="1" max="4095" value="$zone_vlan_id" $field_disabled>
 436             </td>
 437 END
 438 ;
 439     }
 440
 441     print "</tr>";
 442
 443     if ($slightlygrey) {
 444         $slightlygrey = "";
 445     } else {
 446         $slightlygrey = "slightlygrey";
 447     }
 448 }
 449
 450 print <<END
 451         </table>
 452
 453         <div id="submit-container">
 454         $restart_notice
 455                 <input type="submit" name="ACTION" value="$Lang::tr{"save"}">
 456         </div>
 457 </form>
 458 END
 459 ;
 460
 461 ### END OF TABLE ###
 462
 463 &Header::closebox();
 464 &Header::closebigbox();
 465 &Header::closepage();