protocols: add client side protocol handler implementations

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

5 files changed, 588 insertions, 0 deletions

diff --git a/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/l2tp.js b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/l2tp.js
new file mode 100644
index 000000000..13bb3548a
--- /dev/null
+++ b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/l2tp.js
@@ -0,0 +1,75 @@
+'use strict';
+'require uci';
+'require form';
+'require network';
+
+network.registerPatternVirtual(/^l2tp-.+$/);
+
+return network.registerProtocol('l2tp', {
+	getI18n: function() {
+		return _('L2TP');
+	},
+
+	getIfname: function() {
+		return this._ubus('l3_device') || 'l2tp-%s'.format(this.sid);
+	},
+
+	getOpkgPackage: function() {
+		return 'xl2tpd';
+	},
+
+	isFloating: function() {
+		return true;
+	},
+
+	isVirtual: function() {
+		return true;
+	},
+
+	getDevices: function() {
+		return null;
+	},
+
+	containsDevice: function(ifname) {
+		return (network.getIfnameOf(ifname) == this.getIfname());
+	},
+
+	renderFormOptions: function(s) {
+		var dev = this.getL3Device() || this.getDevice(), o;
+
+		o = s.taboption('general', form.Value, 'server', _('L2TP Server'));
+		o.datatype = 'or(host(1), hostport(1))';
+
+		s.taboption('general', form.Value, 'username', _('PAP/CHAP username'));
+
+		o = s.taboption('general', form.Value, 'password', _('PAP/CHAP password'));
+		o.password = true;
+
+		if (L.hasSystemFeature('ipv6')) {
+			o = s.taboption('advanced', form.ListValue, 'ipv6', _('Obtain IPv6-Address'), _('Enable IPv6 negotiation on the PPP link'));
+			o.value('auto', _('Automatic'));
+			o.value('0', _('Disabled'));
+			o.value('1', _('Manual'));
+			o.default = 'auto';
+		}
+
+		o = s.taboption('advanced', form.Flag, 'defaultroute', _('Use default gateway'), _('If unchecked, no default route is configured'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.Flag, 'peerdns', _('Use DNS servers advertised by peer'), _('If unchecked, the advertised DNS server addresses are ignored'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.DynamicList, 'dns', _('Use custom DNS servers'));
+		o.depends('peerdns', '0');
+		o.datatype = 'ipaddr';
+		o.cast     = 'string';
+
+		o = s.taboption('advanced', form.Value, 'metric', _('Use gateway metric'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, 'mtu', _('Override MTU'));
+		o.placeholder = dev ? (dev.getMTU() || '1500') : '1500';
+		o.datatype    = 'max(9200)';
+	}
+});
diff --git a/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/ppp.js b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/ppp.js
new file mode 100644
index 000000000..133b472d1
--- /dev/null
+++ b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/ppp.js
@@ -0,0 +1,140 @@
+'use strict';
+'require rpc';
+'require uci';
+'require form';
+'require network';
+
+var callTTYDevices = rpc.declare({
+	object: 'luci',
+	method: 'getTTYDevices',
+	params: [ 'with_cdc', 'with_tts' ],
+	expect: { result: [] }
+});
+
+network.registerPatternVirtual(/^ppp-.+$/);
+
+function write_keepalive(section_id, value) {
+	var f_opt = this.map.lookupOption('_keepalive_failure', section_id),
+	    i_opt = this.map.lookupOption('_keepalive_interval', section_id),
+	    f = (f_opt != null) ? +f_opt[0].formvalue(section_id) : null,
+	    i = (i_opt != null) ? +i_opt[0].formvalue(section_id) : null;
+
+	if (f == null || f == '' || isNaN(f))
+		f = 0;
+
+	if (i == null || i == '' || isNaN(i) || i < 1)
+		i = 1;
+
+	if (f > 0)
+		uci.set('network', section_id, 'keepalive', '%d %d'.format(f, i));
+	else
+		uci.unset('network', section_id, 'keepalive');
+}
+
+return network.registerProtocol('ppp', {
+	getI18n: function() {
+		return _('PPP');
+	},
+
+	getIfname: function() {
+		return this._ubus('l3_device') || 'ppp-%s'.format(this.sid);
+	},
+
+	getOpkgPackage: function() {
+		return 'ppp';
+	},
+
+	isFloating: function() {
+		return true;
+	},
+
+	isVirtual: function() {
+		return true;
+	},
+
+	getDevices: function() {
+		return null;
+	},
+
+	containsDevice: function(ifname) {
+		return (network.getIfnameOf(ifname) == this.getIfname());
+	},
+
+	renderFormOptions: function(s) {
+		var dev = this.getL3Device() || this.getDevice(), o;
+
+		o = s.taboption('general', form.Value, 'device', _('Modem device'));
+		o.rmempty = false;
+		o.load = function(section_id) {
+			return callTTYDevices(true, true).then(L.bind(function(devices) {
+				if (Array.isArray(devices))
+					for (var i = 0; i < devices.length; i++)
+						this.value(devices[i]);
+
+				return form.Value.prototype.load.apply(this, [section_id]);
+			}, this));
+		};
+
+		s.taboption('general', form.Value, 'username', _('PAP/CHAP username'));
+
+		o = s.taboption('general', form.Value, 'password', _('PAP/CHAP password'));
+		o.password = true;
+
+		if (L.hasSystemFeature('ipv6')) {
+			o = s.taboption('advanced', form.ListValue, 'ipv6', _('Obtain IPv6-Address'), _('Enable IPv6 negotiation on the PPP link'));
+			o.value('auto', _('Automatic'));
+			o.value('0', _('Disabled'));
+			o.value('1', _('Manual'));
+			o.default = 'auto';
+		}
+
+		o = s.taboption('advanced', form.Flag, 'defaultroute', _('Use default gateway'), _('If unchecked, no default route is configured'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.Flag, 'peerdns', _('Use DNS servers advertised by peer'), _('If unchecked, the advertised DNS server addresses are ignored'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.DynamicList, 'dns', _('Use custom DNS servers'));
+		o.depends('peerdns', '0');
+		o.datatype = 'ipaddr';
+		o.cast     = 'string';
+
+		o = s.taboption('advanced', form.Value, 'metric', _('Use gateway metric'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, '_keepalive_failure', _('LCP echo failure threshold'), _('Presume peer to be dead after given amount of LCP echo failures, use 0 to ignore failures'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+		o.write       = write_keepalive;
+		o.remove      = write_keepalive;
+		o.cfgvalue = function(section_id) {
+			var v = uci.get('network', section_id, 'keepalive');
+			if (typeof(v) == 'string' && v != '') {
+				var m = v.match(/^(\d+)[ ,]\d+$/);
+				return m ? m[1] : v;
+			}
+		};
+
+		o = s.taboption('advanced', form.Value, '_keepalive_interval', _('LCP echo interval'), _('Send LCP echo requests at the given interval in seconds, only effective in conjunction with failure threshold'));
+		o.placeholder = '5';
+		o.datatype    = 'min(1)';
+		o.write       = write_keepalive;
+		o.remove      = write_keepalive;
+		o.cfgvalue = function(section_id) {
+			var v = uci.get('network', section_id, 'keepalive');
+			if (typeof(v) == 'string' && v != '') {
+				var m = v.match(/^\d+[ ,](\d+)$/);
+				return m ? m[1] : v;
+			}
+		};
+
+		o = s.taboption('advanced', form.Value, 'demand', _('Inactivity timeout'), _('Close inactive connection after the given amount of seconds, use 0 to persist connection'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, 'mtu', _('Override MTU'));
+		o.placeholder = dev ? (dev.getMTU() || '1500') : '1500';
+		o.datatype    = 'max(9200)';
+	}
+});
diff --git a/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoa.js b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoa.js
new file mode 100644
index 000000000..483ac9e55
--- /dev/null
+++ b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoa.js
@@ -0,0 +1,136 @@
+'use strict';
+'require uci';
+'require form';
+'require network';
+
+network.registerPatternVirtual(/^pppoa-.+$/);
+
+function write_keepalive(section_id, value) {
+	var f_opt = this.map.lookupOption('_keepalive_failure', section_id),
+	    i_opt = this.map.lookupOption('_keepalive_interval', section_id),
+	    f = (f_opt != null) ? +f_opt[0].formvalue(section_id) : null,
+	    i = (i_opt != null) ? +i_opt[0].formvalue(section_id) : null;
+
+	if (f == null || f == '' || isNaN(f))
+		f = 0;
+
+	if (i == null || i == '' || isNaN(i) || i < 1)
+		i = 1;
+
+	if (f > 0)
+		uci.set('network', section_id, 'keepalive', '%d %d'.format(f, i));
+	else
+		uci.unset('network', section_id, 'keepalive');
+}
+
+return network.registerProtocol('pppoa', {
+	getI18n: function() {
+		return _('PPPoATM');
+	},
+
+	getIfname: function() {
+		return this._ubus('l3_device') || 'pppoa-%s'.format(this.sid);
+	},
+
+	getOpkgPackage: function() {
+		return 'ppp-mod-pppoa';
+	},
+
+	isFloating: function() {
+		return true;
+	},
+
+	isVirtual: function() {
+		return true;
+	},
+
+	getDevices: function() {
+		return null;
+	},
+
+	containsDevice: function(ifname) {
+		return (network.getIfnameOf(ifname) == this.getIfname());
+	},
+
+	renderFormOptions: function(s) {
+		var dev = this.getL3Device() || this.getDevice(), o;
+
+		o = s.taboption('general', form.ListValue, 'encaps', _('PPPoA Encapsulation'));
+		o.value('vc', 'VC-Mux');
+		o.value('llc', 'LLC');
+
+		o = s.taboption('general', form.Value, 'atmdev', _('ATM device number'));
+		o.default  = '0';
+		o.datatype = 'uinteger';
+
+		o = s.taboption('general', form.Value, 'vci', _('ATM Virtual Channel Identifier (VCI)'));
+		o.default  = '35';
+		o.datatype = 'uinteger';
+
+		o = s.taboption('general', form.Value, 'vpi', _('ATM Virtual Path Identifier (VPI)'));
+		o.default  = '8';
+		o.datatype = 'uinteger';
+
+		s.taboption('general', form.Value, 'username', _('PAP/CHAP username'));
+
+		o = s.taboption('general', form.Value, 'password', _('PAP/CHAP password'));
+		o.password = true;
+
+		if (L.hasSystemFeature('ipv6')) {
+			o = s.taboption('advanced', form.ListValue, 'ipv6', _('Obtain IPv6-Address'), _('Enable IPv6 negotiation on the PPP link'));
+			o.value('auto', _('Automatic'));
+			o.value('0', _('Disabled'));
+			o.value('1', _('Manual'));
+			o.default = 'auto';
+		}
+
+		o = s.taboption('advanced', form.Flag, 'defaultroute', _('Use default gateway'), _('If unchecked, no default route is configured'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.Flag, 'peerdns', _('Use DNS servers advertised by peer'), _('If unchecked, the advertised DNS server addresses are ignored'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.DynamicList, 'dns', _('Use custom DNS servers'));
+		o.depends('peerdns', '0');
+		o.datatype = 'ipaddr';
+		o.cast     = 'string';
+
+		o = s.taboption('advanced', form.Value, 'metric', _('Use gateway metric'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, '_keepalive_failure', _('LCP echo failure threshold'), _('Presume peer to be dead after given amount of LCP echo failures, use 0 to ignore failures'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+		o.write       = write_keepalive;
+		o.remove      = write_keepalive;
+		o.cfgvalue = function(section_id) {
+			var v = uci.get('network', section_id, 'keepalive');
+			if (typeof(v) == 'string' && v != '') {
+				var m = v.match(/^(\d+)[ ,]\d+$/);
+				return m ? m[1] : v;
+			}
+		};
+
+		o = s.taboption('advanced', form.Value, '_keepalive_interval', _('LCP echo interval'), _('Send LCP echo requests at the given interval in seconds, only effective in conjunction with failure threshold'));
+		o.placeholder = '5';
+		o.datatype    = 'min(1)';
+		o.write       = write_keepalive;
+		o.remove      = write_keepalive;
+		o.cfgvalue = function(section_id) {
+			var v = uci.get('network', section_id, 'keepalive');
+			if (typeof(v) == 'string' && v != '') {
+				var m = v.match(/^\d+[ ,](\d+)$/);
+				return m ? m[1] : v;
+			}
+		};
+
+		o = s.taboption('advanced', form.Value, 'demand', _('Inactivity timeout'), _('Close inactive connection after the given amount of seconds, use 0 to persist connection'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, 'mtu', _('Override MTU'));
+		o.placeholder = dev ? (dev.getMTU() || '1500') : '1500';
+		o.datatype    = 'max(9200)';
+	}
+});
diff --git a/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoe.js b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoe.js
new file mode 100644
index 000000000..5d71c4337
--- /dev/null
+++ b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pppoe.js
@@ -0,0 +1,114 @@
+'use strict';
+'require uci';
+'require form';
+'require network';
+
+network.registerPatternVirtual(/^pppoe-.+$/);
+
+function write_keepalive(section_id, value) {
+	var f_opt = this.map.lookupOption('_keepalive_failure', section_id),
+	    i_opt = this.map.lookupOption('_keepalive_interval', section_id),
+	    f = (f_opt != null) ? +f_opt[0].formvalue(section_id) : null,
+	    i = (i_opt != null) ? +i_opt[0].formvalue(section_id) : null;
+
+	if (f == null || f == '' || isNaN(f))
+		f = 0;
+
+	if (i == null || i == '' || isNaN(i) || i < 1)
+		i = 1;
+
+	if (f > 0)
+		uci.set('network', section_id, 'keepalive', '%d %d'.format(f, i));
+	else
+		uci.unset('network', section_id, 'keepalive');
+}
+
+return network.registerProtocol('pppoe', {
+	getI18n: function() {
+		return _('PPPoE');
+	},
+
+	getIfname: function() {
+		return this._ubus('l3_device') || 'pppoe-%s'.format(this.sid);
+	},
+
+	getOpkgPackage: function() {
+		return 'ppp-mod-pppoe';
+	},
+
+	renderFormOptions: function(s) {
+		var dev = this.getL3Device() || this.getDevice(), o;
+
+		s.taboption('general', form.Value, 'username', _('PAP/CHAP username'));
+
+		o = s.taboption('general', form.Value, 'password', _('PAP/CHAP password'));
+		o.password = true;
+
+		o = s.taboption('general', form.Value, 'ac', _('Access Concentrator'), _('Leave empty to autodetect'));
+		o.placeholder = _('auto');
+
+		o = s.taboption('general', form.Value, 'service', _('Service Name'), _('Leave empty to autodetect'));
+		o.placeholder = _('auto');
+
+		if (L.hasSystemFeature('ipv6')) {
+			o = s.taboption('advanced', form.ListValue, 'ipv6', _('Obtain IPv6-Address'), _('Enable IPv6 negotiation on the PPP link'));
+			o.value('auto', _('Automatic'));
+			o.value('0', _('Disabled'));
+			o.value('1', _('Manual'));
+			o.default = 'auto';
+		}
+
+		o = s.taboption('advanced', form.Flag, 'defaultroute', _('Use default gateway'), _('If unchecked, no default route is configured'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.Flag, 'peerdns', _('Use DNS servers advertised by peer'), _('If unchecked, the advertised DNS server addresses are ignored'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.DynamicList, 'dns', _('Use custom DNS servers'));
+		o.depends('peerdns', '0');
+		o.datatype = 'ipaddr';
+		o.cast     = 'string';
+
+		o = s.taboption('advanced', form.Value, 'metric', _('Use gateway metric'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, '_keepalive_failure', _('LCP echo failure threshold'), _('Presume peer to be dead after given amount of LCP echo failures, use 0 to ignore failures'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+		o.write       = write_keepalive;
+		o.remove      = write_keepalive;
+		o.cfgvalue = function(section_id) {
+			var v = uci.get('network', section_id, 'keepalive');
+			if (typeof(v) == 'string' && v != '') {
+				var m = v.match(/^(\d+)[ ,]\d+$/);
+				return m ? m[1] : v;
+			}
+		};
+
+		o = s.taboption('advanced', form.Value, '_keepalive_interval', _('LCP echo interval'), _('Send LCP echo requests at the given interval in seconds, only effective in conjunction with failure threshold'));
+		o.placeholder = '5';
+		o.datatype    = 'min(1)';
+		o.write       = write_keepalive;
+		o.remove      = write_keepalive;
+		o.cfgvalue = function(section_id) {
+			var v = uci.get('network', section_id, 'keepalive');
+			if (typeof(v) == 'string' && v != '') {
+				var m = v.match(/^\d+[ ,](\d+)$/);
+				return m ? m[1] : v;
+			}
+		};
+
+		o = s.taboption('advanced', form.Value, 'host_uniq', _('Host-Uniq tag content'), _('Raw hex-encoded bytes. Leave empty unless your ISP require this'));
+		o.placeholder = _('auto');
+		o.datatype    = 'hexstring';
+
+		o = s.taboption('advanced', form.Value, 'demand', _('Inactivity timeout'), _('Close inactive connection after the given amount of seconds, use 0 to persist connection'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, 'mtu', _('Override MTU'));
+		o.placeholder = dev ? (dev.getMTU() || '1500') : '1500';
+		o.datatype    = 'max(9200)';
+	}
+});
diff --git a/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pptp.js b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pptp.js
new file mode 100644
index 000000000..006adc1a1
--- /dev/null
+++ b/protocols/luci-proto-ppp/htdocs/luci-static/resources/protocol/pptp.js
@@ -0,0 +1,123 @@
+'use strict';
+'require uci';
+'require form';
+'require network';
+
+network.registerPatternVirtual(/^pptp-.+$/);
+
+function write_keepalive(section_id, value) {
+	var f_opt = this.map.lookupOption('_keepalive_failure', section_id),
+	    i_opt = this.map.lookupOption('_keepalive_interval', section_id),
+	    f = (f_opt != null) ? +f_opt[0].formvalue(section_id) : null,
+	    i = (i_opt != null) ? +i_opt[0].formvalue(section_id) : null;
+
+	if (f == null || f == '' || isNaN(f))
+		f = 0;
+
+	if (i == null || i == '' || isNaN(i) || i < 1)
+		i = 1;
+
+	if (f > 0)
+		uci.set('network', section_id, 'keepalive', '%d %d'.format(f, i));
+	else
+		uci.unset('network', section_id, 'keepalive');
+}
+
+return network.registerProtocol('pptp', {
+	getI18n: function() {
+		return _('PPtP');
+	},
+
+	getIfname: function() {
+		return this._ubus('l3_device') || 'pptp-%s'.format(this.sid);
+	},
+
+	getOpkgPackage: function() {
+		return 'ppp-mod-pptp';
+	},
+
+	isFloating: function() {
+		return true;
+	},
+
+	isVirtual: function() {
+		return true;
+	},
+
+	getDevices: function() {
+		return null;
+	},
+
+	containsDevice: function(ifname) {
+		return (network.getIfnameOf(ifname) == this.getIfname());
+	},
+
+	renderFormOptions: function(s) {
+		var dev = this.getL3Device() || this.getDevice(), o;
+
+		o = s.taboption('general', form.Value, 'server', _('VPN Server'));
+		o.datatype = 'host(0)';
+
+		s.taboption('general', form.Value, 'username', _('PAP/CHAP username'));
+
+		o = s.taboption('general', form.Value, 'password', _('PAP/CHAP password'));
+		o.password = true;
+
+		if (L.hasSystemFeature('ipv6')) {
+			o = s.taboption('advanced', form.ListValue, 'ipv6', _('Obtain IPv6-Address'), _('Enable IPv6 negotiation on the PPP link'));
+			o.value('auto', _('Automatic'));
+			o.value('0', _('Disabled'));
+			o.value('1', _('Manual'));
+			o.default = 'auto';
+		}
+
+		o = s.taboption('advanced', form.Flag, 'defaultroute', _('Use default gateway'), _('If unchecked, no default route is configured'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.Flag, 'peerdns', _('Use DNS servers advertised by peer'), _('If unchecked, the advertised DNS server addresses are ignored'));
+		o.default = o.enabled;
+
+		o = s.taboption('advanced', form.DynamicList, 'dns', _('Use custom DNS servers'));
+		o.depends('peerdns', '0');
+		o.datatype = 'ipaddr';
+		o.cast     = 'string';
+
+		o = s.taboption('advanced', form.Value, 'metric', _('Use gateway metric'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, '_keepalive_failure', _('LCP echo failure threshold'), _('Presume peer to be dead after given amount of LCP echo failures, use 0 to ignore failures'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+		o.write       = write_keepalive;
+		o.remove      = write_keepalive;
+		o.cfgvalue = function(section_id) {
+			var v = uci.get('network', section_id, 'keepalive');
+			if (typeof(v) == 'string' && v != '') {
+				var m = v.match(/^(\d+)[ ,]\d+$/);
+				return m ? m[1] : v;
+			}
+		};
+
+		o = s.taboption('advanced', form.Value, '_keepalive_interval', _('LCP echo interval'), _('Send LCP echo requests at the given interval in seconds, only effective in conjunction with failure threshold'));
+		o.placeholder = '5';
+		o.datatype    = 'min(1)';
+		o.write       = write_keepalive;
+		o.remove      = write_keepalive;
+		o.cfgvalue = function(section_id) {
+			var v = uci.get('network', section_id, 'keepalive');
+			if (typeof(v) == 'string' && v != '') {
+				var m = v.match(/^\d+[ ,](\d+)$/);
+				return m ? m[1] : v;
+			}
+		};
+
+		o = s.taboption('advanced', form.Value, 'demand', _('Inactivity timeout'), _('Close inactive connection after the given amount of seconds, use 0 to persist connection'));
+		o.placeholder = '0';
+		o.datatype    = 'uinteger';
+
+		o = s.taboption('advanced', form.Value, 'mtu', _('Override MTU'));
+		o.placeholder = dev ? (dev.getMTU() || '1500') : '1500';
+		o.datatype    = 'max(9200)';
+	}
+});