release/src-rt-6.x.4708/router/www/advanced-dhcpdns.asp

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   3         Tomato GUI
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  10 <html>
  11 <head>
  12 <meta http-equiv='content-type' content='text/html;charset=utf-8'>
  13 <meta name='robots' content='noindex,nofollow'>
  14 <meta name="viewport" content="width=device-width">
  15 <title>[<% ident(); %>] Advanced: DHCP / DNS</title>
  16 <link rel='stylesheet' type='text/css' href='tomato.css'>
  17 <% css(); %>
  18 <script type='text/javascript' src='tomato.js'></script>
  19
  20 <!-- / / / -->
  21
  22 <style type='text/css'>
  23 textarea {
  24         width: 98%;
  25         height: 15em;
  26 }
  27 </style>
  28
  29 <script type='text/javascript' src='debug.js'></script>
  30
  31 <script type='text/javascript'>
  32
  33 //      <% nvram("dnsmasq_q,ipv6_radvd,ipv6_dhcpd,dhcpd_dmdns,dns_addget,dhcpd_gwmode,dns_intcpt,dhcpd_slt,dhcpc_minpkt,dnsmasq_custom,dnsmasq_norw,dhcpd_lmax,dhcpc_custom,dns_norebind,dhcpd_static_only"); %>
  34
  35 if ((isNaN(nvram.dhcpd_lmax)) || ((nvram.dhcpd_lmax *= 1) < 1)) nvram.dhcpd_lmax = 255;
  36
  37 function verifyFields(focused, quiet)
  38 {
  39         var b = (E('_f_dhcpd_sltsel').value == 1);
  40         elem.display('_dhcpd_sltman', b);
  41         if ((b) && (!v_range('_f_dhcpd_slt', quiet, 1, 43200))) return 0;
  42         if (!v_length('_dnsmasq_custom', quiet, 0, 2048)) return 0;
  43         if (!v_range('_dhcpd_lmax', quiet, 1, 0xFFFF)) return 0;
  44         if (!v_length('_dhcpc_custom', quiet, 0, 80)) return 0;
  45         return 1;
  46 }
  47
  48 function nval(a, b)
  49 {
  50         return (a == null || (a + '').trim() == '') ? b : a;
  51 }
  52
  53 function save()
  54 {
  55         if (!verifyFields(null, false)) return;
  56
  57         var a;
  58         var fom = E('_fom');
  59
  60         fom.dhcpd_dmdns.value = E('_f_dhcpd_dmdns').checked ? 1 : 0;
  61         a = E('_f_dhcpd_sltsel').value;
  62         fom.dhcpd_slt.value = (a != 1) ? a : E('_f_dhcpd_slt').value;
  63         fom.dns_addget.value = E('_f_dns_addget').checked ? 1 : 0;
  64         fom.dns_norebind.value = E('_f_dns_norebind').checked ? 1 : 0;
  65         fom.dhcpd_gwmode.value = E('_f_dhcpd_gwmode').checked ? 1 : 0;
  66         fom.dns_intcpt.value = E('_f_dns_intcpt').checked ? 1 : 0;
  67         fom.dhcpc_minpkt.value = E('_f_dhcpc_minpkt').checked ? 1 : 0;
  68         fom.dhcpd_static_only.value = E('_f_dhcpd_static_only').checked ? '1' : '0';
  69         fom.ipv6_radvd.value = E('_f_ipv6_radvd').checked ? '1' : '0';
  70         fom.ipv6_dhcpd.value = E('_f_ipv6_dhcpd').checked ? '1' : '0';
  71
  72         fom.dnsmasq_q.value = 0;
  73         if (fom.f_dnsmasq_q4.checked) fom.dnsmasq_q.value |= 1;
  74         if (fom.f_dnsmasq_q6.checked) fom.dnsmasq_q.value |= 2;
  75         if (fom.f_dnsmasq_qr.checked) fom.dnsmasq_q.value |= 4;
  76
  77         if (fom.dhcpc_minpkt.value != nvram.dhcpc_minpkt ||
  78             fom.dhcpc_custom.value != nvram.dhcpc_custom) {
  79                 nvram.dhcpc_minpkt = fom.dhcpc_minpkt.value;
  80                 nvram.dhcpc_custom = fom.dhcpc_custom.value;
  81                 fom._service.value = '*';
  82         }
  83         else {
  84                 fom._service.value = 'dnsmasq-restart';
  85         }
  86
  87
  88         if (fom.dns_intcpt.value != nvram.dns_intcpt) {
  89                 nvram.dns_intcpt = fom.dns_intcpt.value;
  90                 if (fom._service.value != '*') fom._service.value += ',firewall-restart';
  91         }
  92
  93 /* IPV6-BEGIN */
  94         if (fom.dhcpd_dmdns.value != nvram.dhcpd_dmdns) {
  95                 nvram.dhcpd_dmdns = fom.dhcpd_dmdns.value;
  96                 if (fom._service.value != '*') fom._service.value += ',dnsmasq-restart';
  97         }
  98 /* IPV6-END */
  99
 100         form.submit(fom, 1);
 101 }
 102
 103 function toggleVisibility(whichone) {
 104         if(E('sesdiv' + whichone).style.display=='') {
 105                 E('sesdiv' + whichone).style.display='none';
 106                 E('sesdiv' + whichone + 'showhide').innerHTML='(Click here to show)';
 107                 cookie.set('adv_dhcpdns_' + whichone + '_vis', 0);
 108         } else {
 109                 E('sesdiv' + whichone).style.display='';
 110                 E('sesdiv' + whichone + 'showhide').innerHTML='(Click here to hide)';
 111                 cookie.set('adv_dhcpdns_' + whichone + '_vis', 1);
 112         }
 113 }
 114
 115 function init() {
 116         var c;
 117         if (((c = cookie.get('adv_dhcpdns_notes_vis')) != null) && (c == '1')) {
 118                 toggleVisibility("notes");
 119         }
 120 }
 121 </script>
 122
 123 </head>
 124 <body onload='init()'>
 125 <form id='_fom' method='post' action='tomato.cgi'>
 126 <table id='container' cellspacing=0>
 127 <tr><td colspan=2 id='header'>
 128         <div class='title'>Tomato</div>
 129         <div class='version'>Version <% version(); %></div>
 130 </td></tr>
 131 <tr id='body'><td id='navi'><script type='text/javascript'>navi()</script></td>
 132 <td id='content'>
 133 <div id='ident'><% ident(); %></div>
 134
 135 <!-- / / / -->
 136
 137 <input type='hidden' name='_nextpage' value='advanced-dhcpdns.asp'>
 138 <input type='hidden' name='_service' value=''>
 139
 140 <input type='hidden' name='dhcpd_dmdns'>
 141 <input type='hidden' name='dhcpd_slt'>
 142 <input type='hidden' name='dns_addget'>
 143 <input type='hidden' name='dns_norebind'>
 144 <input type='hidden' name='dhcpd_gwmode'>
 145 <input type='hidden' name='dns_intcpt'>
 146 <input type='hidden' name='dhcpc_minpkt'>
 147 <input type='hidden' name='dhcpd_static_only'>
 148 <input type='hidden' name='ipv6_radvd'>
 149 <input type='hidden' name='ipv6_dhcpd'>
 150 <input type='hidden' name='dnsmasq_q'>
 151
 152 <div class='section-title'>DHCP / DNS Server (LAN)</div>
 153 <div class='section'>
 154 <script type='text/javascript'>
 155 createFieldTable('', [
 156         { title: 'Use internal DNS', name: 'f_dhcpd_dmdns', type: 'checkbox', value: nvram.dhcpd_dmdns == '1' },
 157         { title: 'Use received DNS with user-entered DNS', name: 'f_dns_addget', type: 'checkbox', value: nvram.dns_addget == '1' },
 158         { title: 'Prevent DNS-rebind attacks', name: 'f_dns_norebind', type: 'checkbox', value: nvram.dns_norebind == '1' },
 159         { title: 'Intercept DNS port<br>(UDP 53)', name: 'f_dns_intcpt', type: 'checkbox', value: nvram.dns_intcpt == '1' },
 160         { title: 'Use user-entered gateway if WAN is disabled', name: 'f_dhcpd_gwmode', type: 'checkbox', value: nvram.dhcpd_gwmode == '1' },
 161         { title: 'Ignore DHCP requests from unknown devices', name: 'f_dhcpd_static_only', type: 'checkbox', value: nvram.dhcpd_static_only == '1' },
 162         { title: 'Maximum active DHCP leases', name: 'dhcpd_lmax', type: 'text', maxlen: 5, size: 8, value: nvram.dhcpd_lmax },
 163         { title: 'Static lease time', multi: [
 164                 { name: 'f_dhcpd_sltsel', type: 'select', options: [[0,'Same as normal lease time'],[-1,'"Infinite"'],[1,'Custom']],
 165                         value: (nvram.dhcpd_slt < 1) ? nvram.dhcpd_slt : 1 },
 166                 { name: 'f_dhcpd_slt', type: 'text', maxlen: 5, size: 8, prefix: '<span id="_dhcpd_sltman"> ', suffix: ' <i>(minutes)</i></span>',
 167                         value: (nvram.dhcpd_slt >= 1) ? nvram.dhcpd_slt : 3600 } ] },
 168         { title: 'Announce IPv6 on LAN (SLAAC)', name: 'f_ipv6_radvd', type: 'checkbox', value: nvram.ipv6_radvd == '1' },
 169         { title: 'Announce IPv6 on LAN (DHCP)', name: 'f_ipv6_dhcpd', type: 'checkbox', value: nvram.ipv6_dhcpd == '1' },
 170         { title: 'Mute dhcpv4 logging', name: 'f_dnsmasq_q4', type: 'checkbox', value: (nvram.dnsmasq_q & 1) },
 171         { title: 'Mute dhcpv6 logging', name: 'f_dnsmasq_q6', type: 'checkbox', value: (nvram.dnsmasq_q & 2) },
 172         { title: 'Mute RA logging', name: 'f_dnsmasq_qr', type: 'checkbox', value: (nvram.dnsmasq_q & 4) },
 173         { title: '<a href="http://www.thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html" target="_new">Dnsmasq</a><br>Custom configuration', name: 'dnsmasq_custom', type: 'textarea', value: nvram.dnsmasq_custom }
 174 ]);
 175 </script>
 176
 177 <!-- / / / -->
 178
 179 <div class='section-title'>DHCP Client (WAN)</div>
 180 <div class='section'>
 181 <script type='text/javascript'>
 182 createFieldTable('', [
 183         { title: 'DHCPC Options', name: 'dhcpc_custom', type: 'text', maxlen: 80, size: 34, value: nvram.dhcpc_custom },
 184         { title: 'Reduce packet size', name: 'f_dhcpc_minpkt', type: 'checkbox', value: nvram.dhcpc_minpkt == '1' }
 185 ]);
 186 </script>
 187 </div>
 188
 189 <!-- / / / -->
 190
 191 <div class='section-title'>Notes <small><i><a href='javascript:toggleVisibility("notes");'><span id='sesdivnotesshowhide'>(Click here to show)</span></a></i></small></div>
 192 <div class='section' id='sesdivnotes' style='display:none'>
 193
 194 <i>DHCP / DNS Server (LAN):</i><br>
 195 <ul>
 196 <li><b>Use internal DNS</b> - Allow dnsmasq to be your DNS server on LAN.</li>
 197 <li><b>Use received DNS with user-entered DNS</b> - Add DNS servers received from your WAN connection to the static DNS server list (see <a href='basic-network.asp'>Network</a> configuration).</li>
 198 <li><b>Prevent DNS-rebind attacks</b> - Enable DNS rebinding protection on Dnsmasq.</li>
 199 <li><b>Intercept DNS port</b> - Any DNS requests/packets sent out to UDP port 53 are redirected to the internal DNS server.</li>
 200 <li><b>Use user-entered gateway if WAN is disabled</b> - DHCP will use the IP address of the router as the default gateway on each LAN.</li>
 201 <li><b>Ignore DHCP requests (...)</b> - Dnsmasq will ignore DHCP requests  to Only MAC addresses listed on the <a href='basic-static.asp'>Static DHCP/ARP</a> page won't be able to obtain an IP address through DHCP.</li>
 202 <li><b>Maximum active DHCP leases</b> - Self-explanatory.</li>
 203 <li><b>Static lease time</b> - Absolute maximum amount of time allowed for any DHCP lease to be valid.</li>
 204 <li><b>Custom configuration</b> - Extra options to be added to the Dnsmasq configuration file.</li>
 205 </ul>
 206
 207 <i>DHCP Client (WAN):</i><br>
 208 <ul>
 209 <li><b>DHCPC Options</b> - Extra options for the DHCP client.</li>
 210 <li><b>Reduce packet size</b> - Self-explanatory.</li>
 211 </ul>
 212
 213 <i>Other relevant notes/hints:</i><br>
 214 <ul>
 215 <li>The contents of file /etc/dnsmasq.custom are also added to the end of Dnsmasq's configuration file (if it exists).</li>
 216 </ul>
 217
 218 </div>
 219
 220 <!-- / / / -->
 221
 222 </td></tr>
 223 <tr><td id='footer' colspan=2>
 224         <span id='footer-msg'></span>
 225         <input type='button' value='Save' id='save-button' onclick='save()'>
 226         <input type='button' value='Cancel' id='cancel-button' onclick='javascript:reloadPage();'>
 227 </td></tr>
 228 </table>
 229 </form>
 230 <script type='text/javascript'>verifyFields(null, true);</script>
 231 </body>
 232 </html>
 233