update 3rd party

third-party/luci-app-udp2raw/Makefile

@@ -9,17 +9,15 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=luci-app-udp2raw
 PKG_VERSION:=1.0.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_LICENSE:=GPLv3
 PKG_LICENSE_FILES:=LICENSE
 PKG_MAINTAINER:=Jian Chang <[email protected]>
 
-PKG_BUILD_PARALLEL:=1
-
 include $(INCLUDE_DIR)/package.mk
 
-define Package/luci-app-udp2raw
+define Package/$(PKG_NAME)
 	SECTION:=luci
 	CATEGORY:=LuCI
 	SUBMENU:=3. Applications
@@ -28,7 +26,7 @@ define Package/luci-app-udp2raw
 	DEPENDS:=+udp2raw-tunnel
 endef
 
-define Package/luci-app-udp2raw/description
+define Package/$(PKG_NAME)/description
 	LuCI Support for udp2raw-tunnel.
 endef
 
@@ -43,28 +41,27 @@ endef
 define Build/Compile
 endef
 
-define Package/luci-app-udp2raw/postinst
+define Package/$(PKG_NAME)/postinst
 #!/bin/sh
 if [ -z "$${IPKG_INSTROOT}" ]; then
 	( . /etc/uci-defaults/luci-udp2raw ) && rm -f /etc/uci-defaults/luci-udp2raw
-	rm -rf /tmp/luci-indexcache /tmp/luci-modulecache
 fi
 exit 0
 endef
 
-define Package/luci-app-udp2raw/conffiles
-/etc/config/udp2raw
+define Package/$(PKG_NAME)/conffiles
+	/etc/config/udp2raw
 endef
 
-define Package/luci-app-udp2raw/install
+define Package/$(PKG_NAME)/install
 	$(INSTALL_DIR) $(1)/usr/lib/lua/luci/i18n
 	$(INSTALL_DATA) $(PKG_BUILD_DIR)/udp2raw.*.lmo $(1)/usr/lib/lua/luci/i18n/
 	$(INSTALL_DIR) $(1)/usr/lib/lua/luci/controller
 	$(INSTALL_DATA) ./files/luci/controller/*.lua $(1)/usr/lib/lua/luci/controller/
 	$(INSTALL_DIR) $(1)/usr/lib/lua/luci/model/cbi/udp2raw
 	$(INSTALL_DATA) ./files/luci/model/cbi/udp2raw/*.lua $(1)/usr/lib/lua/luci/model/cbi/udp2raw/
-	$(INSTALL_DIR) $(1)/usr/lib/lua/luci/view
-	$(INSTALL_DATA) ./files/luci/view/*.htm $(1)/usr/lib/lua/luci/view/
+	$(INSTALL_DIR) $(1)/usr/lib/lua/luci/view/udp2raw
+	$(INSTALL_DATA) ./files/luci/view/udp2raw/*.htm $(1)/usr/lib/lua/luci/view/udp2raw/
 	$(INSTALL_DIR) $(1)/etc/config
 	$(INSTALL_CONF) ./files/root/etc/config/udp2raw $(1)/etc/config/udp2raw
 	$(INSTALL_DIR) $(1)/etc/init.d
@@ -73,4 +70,4 @@ define Package/luci-app-udp2raw/install
 	$(INSTALL_BIN) ./files/root/etc/uci-defaults/luci-udp2raw $(1)/etc/uci-defaults/luci-udp2raw
 endef
 
-$(eval $(call BuildPackage,luci-app-udp2raw))
+$(eval $(call BuildPackage,$(PKG_NAME)))

third-party/luci-app-udp2raw/files/luci/i18n/udp2raw.zh-cn.po

@@ -77,7 +77,7 @@ msgid "Cipher Mode"
 msgstr "加密方式"
 
 msgid "Auth Mode"
-msgstr "认证方式"
+msgstr "验证方式"
 
 msgid "Auto Rule"
 msgstr "自动规则"
@@ -89,7 +89,7 @@ msgid "Keep Rule"
 msgstr "保持规则"
 
 msgid "Monitor iptables and auto re-add if necessary."
-msgstr "监视 iptables 并在必要时重新添加规则。"
+msgstr "定期检查 iptables 并在必要时重新添加规则。"
 
 msgid "seq Mode"
 msgstr "seq 模式"

third-party/luci-app-udp2raw/files/luci/model/cbi/udp2raw/general.lua

@@ -18,13 +18,14 @@ uci:foreach("udp2raw", "servers", function(s)
 end)
 
 m = Map("udp2raw", "%s - %s" %{translate("udp2raw-tunnel"), translate("Settings")})
-m:append(Template("udp2raw_status"))
+m:append(Template("udp2raw/status"))
 
 s = m:section(NamedSection, "general", "general", translate("General Settings"))
 s.anonymous = true
 s.addremove = false
 
-o = s:option(ListValue, "server", translate("Server"))
+o = s:option(DynamicList, "server", translate("Server"))
+o.template = "udp2raw/dynamiclist"
 o:value("nil", translate("Disable"))
 for _, s in ipairs(servers) do o:value(s.name, s.alias) end
 o.default = "nil"

third-party/luci-app-udp2raw/files/luci/view/udp2raw/dynamiclist.htm

@@ -0,0 +1,98 @@
+<%#
+ Copyright (C) 2017 Jian Chang <[email protected]>
+ Licensed to the public under the GNU General Public License v3.
+-%>
+
+<%+cbi/valueheader%>
+
+<%-
+	local values = self:formvalue(section)
+	if not values then
+		values = self:cfgvalue(section) or {self.default}
+	end
+
+	local function serialize_json(x, cb)
+		local rv, push = nil, cb
+		if not push then
+			rv = { }
+			push = function(tok) rv[#rv+1] = tok end
+		end
+
+		if x == nil then
+			push("null")
+		elseif type(x) == "table" then
+			push("[")
+			for k = 1, #x do
+				if k > 1 then
+					push(",")
+				end
+				serialize_json(x[k], push)
+			end
+			push("]")
+		else
+			push('"%s"' % tostring(x):gsub('["%z\1-\31\\]',
+				function(c) return '\\u%04x' % c:byte(1) end))
+		end
+
+		if not cb then
+			return table.concat(rv, "")
+		end
+	end
+-%>
+
+<div<%=attr("id", cbid .. ".value.field")%>></div>
+<script type="text/javascript">//<![CDATA[
+	(function() {
+		var values = <%=serialize_json(values)%>;
+		var keylist = <%=serialize_json(self.keylist)%>;
+		var vallist = <%=serialize_json(self.vallist)%>;
+		var parent = document.getElementById("<%=cbid%>.value.field");
+
+		var dynamiclist_cbi_init = function() {
+			while (parent.firstChild) {
+				parent.removeChild(parent.firstChild);
+			}
+
+			for (var i = 0; i < values.length; i++) {
+				var sel = document.createElement("select");
+				sel.id = "<%=cbid%>." + (i + 1);
+				sel.name = "<%=cbid%>";
+				sel.index = i;
+				sel.className = "cbi-input-select";
+				sel.onchange = function() {
+					values[this.index] = this.value;
+				};
+				parent.appendChild(sel);
+
+				for (var j = 0; j < keylist.length; j++) {
+					var opt = document.createElement("option");
+					opt.value = keylist[j];
+					if (opt.value == values[i]) {
+						opt.selected = "selected";
+					}
+					opt.appendChild(document.createTextNode(vallist[j]));
+					sel.appendChild(opt);
+				}
+
+				var btn = document.createElement('img');
+				btn.src = "<%=resource%>" + ((i + 1) < values.length ? "/cbi/remove.gif" : "/cbi/add.gif");
+				btn.index = i;
+				btn.className = 'cbi-image-button';
+				btn.onclick = function() {
+					if (this.src.indexOf('remove') > -1) {
+						values.splice(this.index, 1);
+					} else {
+						values.push("<%=self.default%>");
+					}
+					dynamiclist_cbi_init();
+					return false;
+				};
+				parent.appendChild(btn);
+				parent.appendChild(document.createElement('br'));
+			}
+		};
+		dynamiclist_cbi_init();
+	}());
+//]]></script>
+
+<%+cbi/valuefooter%>

third-party/luci-app-udp2raw/files/luci/view/udp2raw/status.htm

@@ -0,0 +1,39 @@
+<%
+local function get_udp2raw_version(name)
+	local info = luci.util.split(luci.sys.exec("%s -h 2>/dev/null" %{name}), "\n")
+	local version = string.match(info[2], "git version:(%w+)")
+	local build = string.match(info[2], "build date:(.+)")
+	return info[1] == "udp2raw-tunnel" and version or "", info[1] == "udp2raw-tunnel" and build or ""
+end
+
+local udp2raw_version, udp2raw_build = get_udp2raw_version("udp2raw")
+-%>
+
+<fieldset class="cbi-section">
+	<legend><%:Running Status%></legend>
+	<table width="100%" cellspacing="10" id="_udp2raw_status_table">
+		<tr>
+			<td width="33%"><%:Binary Version%></td>
+			<td>
+				<% if udp2raw_version == "" then -%>
+				<em><%:Invalid Binary File.%></em>
+				<% else -%>
+				<%=pcdata(udp2raw_version)%>
+				<%- end %>
+			</td>
+		</tr>
+		<% if udp2raw_build ~= "" then -%>
+		<tr><td width="33%"><%:Build Time%></td><td><%=pcdata(udp2raw_build)%></td></tr>
+		<% end -%>
+		<tr><td width="33%"><%:Running Status%></td><td id="_udp2raw_status"><em><%:Collecting data...%></em></td></tr>
+	</table>
+</fieldset>
+
+<script type="text/javascript">//<![CDATA[
+	var udp2raw_status = document.getElementById('_udp2raw_status');
+	XHR.poll(5, '<%=luci.dispatcher.build_url("admin", "services", "udp2raw", "status")%>', null, function(x, status) {
+		if ( x && x.status == 200 ) {
+			udp2raw_status.innerHTML = status.running ? '<%:RUNNING%>' : '<%:NOT RUNNING%>';
+		}
+	});
+//]]></script>

third-party/luci-app-udp2raw/files/root/etc/config/udp2raw

@@ -1,6 +1,6 @@
 
 config general 'general'
-	option server 'nil'
+	list server 'nil'
 	option daemon_user 'root'
 
 config servers 'default'

third-party/luci-app-udp2raw/files/root/etc/init.d/udp2raw

@@ -1,51 +1,56 @@
 #!/bin/sh /etc/rc.common
 
 START=88
+STOP=15
 USE_PROCD=1
 
-UDP2RAW=udp2raw
+NAME=udp2raw
 
 _log() {
-	local level="$1"
-	local msg="$2"
+	logger -p "daemon.$1" -t "$NAME" "$2"
+}
 
-	logger -p "daemon.${level}" -t "$UDP2RAW" "$msg"
+has_valid_server() {
+	local server
+	for server in $@; do
+		[ "$(uci_get $NAME $server)" = "servers" ] && return 0
+	done
+	return 1
 }
 
-gen_client_config_file() {
+create_config() {
 	local config_file="$1"
 	echo "# auto-generated config file from /etc/config/udp2raw" > $config_file
 
 	echo "-c" >> $config_file
-	echo "-l ${listen_addr}:${listen_port}" >> $config_file && _log "info" "listening on: ${listen_addr}:${listen_port}"
-	echo "-r ${server_addr}:${server_port}" >> $config_file && _log "info" "remote address: ${server_addr}:${server_port}"
+	echo "-l ${listen_addr:=127.0.0.1}:${listen_port:=2080}" >> $config_file && _log "info" "listening on: ${listen_addr}:${listen_port}"
+	echo "-r ${server_addr}:${server_port:=8080}" >> $config_file
 
 	[ -n "$raw_mode" ] && echo "--raw-mode ${raw_mode}" >> $config_file && _log "info" "raw-mode: ${raw_mode}"
 	[ -n "$key" ] && echo "--key ${key}" >> $config_file
-	[ -n "$cipher_mode" ] && echo "--cipher-mode ${cipher_mode}" >> $config_file && _log "info" "cipher-mode: ${cipher_mode}"
-	[ -n "$auth_mode" ] && echo "--auth-mode ${auth_mode}" >> $config_file && _log "info" "auth-mode: ${auth_mode}"
+	[ -n "$cipher_mode" ] && echo "--cipher-mode ${cipher_mode}" >> $config_file
+	[ -n "$auth_mode" ] && echo "--auth-mode ${auth_mode}" >> $config_file
 
-	[ "$auto_rule" -ne 0 ] && echo "--auto-rule" >> $config_file && _log "info" "auto-rule: true"
-	[ "$auto_rule" -ne 0 -a "$keep_rule" -ne 0 ] && echo "--keep-rule" >> $config_file && _log "info" "keep-rule: true"
+	[ $auto_rule -eq 1 ] && echo "--auto-rule" >> $config_file
+	[ $auto_rule -eq 1 -a $keep_rule -eq 1 ] && echo "--keep-rule" >> $config_file
 
-	[ -n "$seq_mode" ] && echo "--seq-mode ${seq_mode}" >> $config_file && _log "info" "seq-mode: ${seq_mode}"
-	[ -n "$lower_level" ] && echo "--lower-level ${lower_level}" >> $config_file && _log "info" "lower-level: ${lower_level}"
+	[ -n "$seq_mode" ] && echo "--seq-mode ${seq_mode}" >> $config_file
+	[ -n "$lower_level" ] && echo "--lower-level ${lower_level}" >> $config_file
 	[ -n "$source_ip" ] && echo "--source-ip ${source_ip}" >> $config_file
 	[ -n "$source_port" ] && echo "--source-port ${source_port}" >> $config_file
 
 	[ -n "$log_level" ] && echo "--log-level ${log_level}" >> $config_file
 	echo "--disable-color" >> $config_file
-	_log "info" "running from ${daemon_user} user"
 }
 
 validate_config_section() {
-	uci_validate_section "$UDP2RAW" general "$1" \
+	uci_validate_section "$NAME" general "$1" \
 		'server:uciname' \
 		'daemon_user:string:root'
 }
 
 validate_server_section() {
-	uci_validate_section "$UDP2RAW" servers "$1" \
+	uci_validate_section "$NAME" servers "$1" \
 		'server_addr:host' \
 		'server_port:port:8080' \
 		'listen_addr:ipaddr:127.0.0.1' \
@@ -63,59 +68,49 @@ validate_server_section() {
 		'log_level:range(0,6)'
 }
 
-start_udp2raw_instance() {
-	local section="$1"
-
-	if ! validate_config_section "$section" ; then
-		_log "err" "Config validate failed."
-		return 1
-	fi
+start_instance() {
+	local server="$1"
 
-	if [ -z "$server" ] || [ "$server" = "nil" ]; then
+	if [ -z "$server" -o "$server" == "nil" ]; then
 		return 0
 	elif ! validate_server_section "$server"; then
 		_log "err" "Server config validation failed."
 		return 1
-	elif [ -z "$server_addr" ]; then
+	fi
+
+	/sbin/validate_data "ipaddr" "$server_addr" >/dev/null 2>&1
+	[ $? -ne 0 ] && server_addr=$(nslookup "$server_addr" | \
+		sed -n 's/^Address[[:space:]]*[0-9]*:[[:space:]]*\(\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\)$/\1/p')
+	if [ -z "$server_addr" ]; then
 		_log "err" "Server address validation failed."
 		return 1
 	fi
 
-	is_ipv6_address() {
-		echo "$1" | grep -q ":"
-	}
-
-	is_ipv6_address "$server_addr" && server_addr="[${server_addr}]"
-	is_ipv6_address "$listen_addr" && listen_addr="[${listen_addr}]"
-
-	_log "notice" "udp2raw-tunnel start."
 	[ -d /var/etc ] || mkdir -p /var/etc
-	local config_file=/var/etc/${UDP2RAW}.${server}.conf
-
-	if ! ( gen_client_config_file "$config_file" ); then
-		_log "err" "Can't create config file".
-		return 1
-	fi
+	local config_file="/var/etc/${NAME}.${server}.conf"
+	create_config "$config_file" || return 1
 
 	procd_open_instance
 	procd_set_param command /usr/bin/udp2raw
 	procd_append_param command --conf-file "$config_file"
 	procd_set_param respawn
 	procd_set_param file "$config_file"
-	procd_set_param user "$daemon_user"
-	procd_set_param pidfile /var/run/${UDP2RAW}.${server}.pid
+	[ -n "$daemon_user" ] && procd_set_param user "$daemon_user" && _log "info" "running from ${daemon_user} user"
+	procd_set_param pidfile "/var/run/${NAME}.${server}.pid"
 	procd_close_instance
 }
 
 service_triggers() {
-	procd_add_reload_trigger "$UDP2RAW"
+	procd_add_reload_trigger "$NAME"
 }
 
 start_service() {
-	config_load "$UDP2RAW"
-	config_foreach start_udp2raw_instance "general"
-}
-
-stop_service() {
-	_log "notice" "udp2raw-tunnel stop."
+	if ! validate_config_section "general" ; then
+		_log "err" "Config validate failed."
+		return 1
+	fi
+	has_valid_server $server || return 1
+	for srv in $server; do
+		start_instance $srv
+	done
 }

third-party/luci-app-udp2raw/files/root/etc/init.d/udp2raw.init

@@ -0,0 +1,130 @@
+#!/bin/sh /etc/rc.common
+
+START=88
+STOP=15
+
+NAME=udp2raw
+
+_log() {
+	logger -p "daemon.$1" -t "$NAME" "$2"
+}
+
+has_valid_server() {
+	local server
+	for server in $@; do
+		[ "$(uci_get $NAME $server)" = "servers" ] && return 0
+	done
+	return 1
+}
+
+create_config() {
+	local config_file="$1"
+	echo "# auto-generated config file from /etc/config/udp2raw" > $config_file
+
+	echo "-c" >> $config_file
+	echo "-l ${listen_addr:=127.0.0.1}:${listen_port:=2080}" >> $config_file
+	echo "-r ${server_addr}:${server_port:=8080}" >> $config_file
+
+	[ -n "$raw_mode" ] && echo "--raw-mode ${raw_mode}" >> $config_file
+	[ -n "$key" ] && echo "--key ${key}" >> $config_file
+	[ -n "$cipher_mode" ] && echo "--cipher-mode ${cipher_mode}" >> $config_file
+	[ -n "$auth_mode" ] && echo "--auth-mode ${auth_mode}" >> $config_file
+
+	[ $auto_rule -eq 1 ] && echo "--auto-rule" >> $config_file
+	[ $auto_rule -eq 1 -a $keep_rule -eq 1 ] && echo "--keep-rule" >> $config_file
+
+	[ -n "$seq_mode" ] && echo "--seq-mode ${seq_mode}" >> $config_file
+	[ -n "$lower_level" ] && echo "--lower-level ${lower_level}" >> $config_file
+	[ -n "$source_ip" ] && echo "--source-ip ${source_ip}" >> $config_file
+	[ -n "$source_port" ] && echo "--source-port ${source_port}" >> $config_file
+
+	[ -n "$log_level" ] && echo "--log-level ${log_level}" >> $config_file
+	echo "--disable-color" >> $config_file
+}
+
+validate_config_section() {
+	local ret=$(/sbin/validate_data "$NAME" general "$1" \
+		'server:uciname' \
+		'daemon_user:string:root' \
+		2> /dev/null)
+	[ $? -ne 0 ] && return 1
+	eval "$ret"
+}
+
+validate_server_section() {
+	local ret=$(/sbin/validate_data "$NAME" servers "$1" \
+		'server_addr:host' \
+		'server_port:port:8080' \
+		'listen_addr:ipaddr:127.0.0.1' \
+		'listen_port:port:2080' \
+		'raw_mode:or("faketcp", "udp", "icmp"):faketcp' \
+		'key:string' \
+		'cipher_mode:or("aes128cbc", "xor", "none"):aes128cbc' \
+		'auth_mode:or("md5", "crc32", "simple", "none"):md5' \
+		'auto_rule:bool:1' \
+		'keep_rule:bool:0' \
+		'seq_mode:range(0,4)' \
+		'lower_level:string' \
+		'source_ip:ipaddr' \
+		'source_port:port' \
+		'log_level:range(0,6)' \
+		2> /dev/null)
+	[ $? -ne 0 ] && return 1
+	eval "$ret"
+}
+
+start_instance() {
+	local server="$1"
+
+	if [ -z "$server" -o "$server" == "nil" ]; then
+		return 0
+	elif ! validate_server_section "$server"; then
+		_log "err" "Server config validation failed."
+		return 1
+	fi
+
+	/sbin/validate_data "ipaddr" "$server_addr" >/dev/null 2>&1
+	[ $? -ne 0 ] && server_addr=$(nslookup "$server_addr" | \
+		sed -n 's/^Address[[:space:]]*[0-9]*:[[:space:]]*\(\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\)$/\1/p')
+	if [ -z "$server_addr" ]; then
+		_log "err" "Server address validation failed."
+		return 1
+	fi
+
+	[ -d /var/etc ] || mkdir -p /var/etc
+	local config_file="/var/etc/${NAME}.${server}.conf"
+	create_config "$config_file" || return 1
+	[ -d "/var/log/${NAME}" ] || mkdir -p "/var/log/${NAME}"
+
+	/usr/bin/udp2raw --conf-file "$config_file" >> "/var/log/${NAME}/${NAME}.${server}.log" &
+	echo $! > "/var/run/${NAME}.${server}.pid"
+	return 0
+}
+
+start() {
+	pgrep "/usr/bin/${NAME}" >/dev/null 2>&1 && return
+
+	if ! validate_config_section "general" ; then
+		_log "err" "Config validate failed."
+		return 1
+	fi
+	has_valid_server $server || return 1
+	for srv in $server; do
+		start_instance $srv
+	done
+}
+
+stop() {
+	local pids=$(pgrep "/usr/bin/${NAME}" 2> /dev/null)
+	[ $? -ne 0 ] && return
+	for pid in $pids; do
+		kill $pid >/dev/null 2>&1
+	done
+	return 0
+}
+
+restart() {
+	stop
+	sleep 1
+	start
+}

third-party/luci-app-udp2raw/files/root/etc/uci-defaults/luci-udp2raw

@@ -8,11 +8,9 @@ uci -q batch <<-EOF >/dev/null
 EOF
 
 general=$(uci -q get udp2raw.@general[-1])
-
 if [ -z "$general" ]; then
 	uci -q add udp2raw general
 fi
-
 if [ ."$general" != ."general" ]; then
 	uci -q batch <<-EOF >/dev/null
 		rename udp2raw.@general[-1]="general"

third-party/udp2raw-openwrt-makefile/Makefile

@@ -9,13 +9,13 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=udp2raw-tunnel
 PKG_VERSION:=20171125.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/wangyu-/udp2raw-tunnel.git
-PKG_SOURCE_VERSION:=b35edf74865275cdc970384681a1a076d3a8d0e1
+PKG_SOURCE_VERSION:=19b4d456365ea5d44e2fa6e7447e59061f14ef51
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz
 
 PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=LICENSE
@@ -40,12 +40,11 @@ endef
 
 MAKE_FLAGS += cross2
 
-define Build/Prepare
-	$(PKG_UNPACK)
-	sed -i 's/cc_cross=.*/cc_cross=$(TARGET_CXX)/g' $(PKG_BUILD_DIR)/makefile
-	sed -i '/\*gitversion/d' $(PKG_BUILD_DIR)/makefile
-	echo 'const char *gitversion = "$(PKG_SOURCE_VERSION)";' > $(PKG_BUILD_DIR)/git_version.h
-	$(Build/Patch)
+define Build/Configure
+	$(call Build/Configure/Default)
+	$(SED) 's/cc_cross[[:space:]]*=.*/cc_cross=$(TARGET_CXX)/' \
+		-e 's/\\".*shell git rev-parse HEAD.*\\"/\\"$(PKG_SOURCE_VERSION)\\"/' \
+		$(PKG_BUILD_DIR)/makefile
 endef
 
 define Package/udp2raw-tunnel/install