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