package：add nfs mount luci (#4171)

package/lean/luci-app-nfs/Makefile

@@ -0,0 +1,17 @@
+# Copyright (C) 2016 Openwrt.org
+#
+# This is free software, licensed under the Apache License, Version 2.0 .
+#
+
+include $(TOPDIR)/rules.mk
+
+LUCI_TITLE:=LuCI support for nfs
+LUCI_DEPENDS:=+nfs-utils +nfs-kernel-server +nfs-kernel-server-utils +mount-utils
+LUCI_PKGARCH:=all
+PKG_VERSION:=1.1
+PKG_RELEASE:=1
+
+include $(TOPDIR)/feeds/luci/luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature
+

package/lean/luci-app-nfs/luasrc/controller/nfs.lua

@@ -0,0 +1,8 @@
+module("luci.controller.nfs", package.seeall)
+
+function index()
+	if not nixio.fs.access("/etc/config/nfs") then
+		return
+	end
+	entry({"admin", "nas", "nfs"}, cbi("nfs"), _("NFS Manage"), 5).dependent = true
+end

package/lean/luci-app-nfs/luasrc/model/cbi/nfs.lua

@@ -0,0 +1,70 @@
+local fs = require "nixio.fs"
+
+m = Map("nfs", translate("NFS Manage"))
+
+-- NFS Share --
+s = m:section(TypedSection, "share", translate("Shared Directories"))
+s.anonymous = true
+s.addremove = true
+s.template = "cbi/tblsection"
+
+en = s:option(Flag, "enabled", translate("Enable"))
+en.rmempty = false
+en.default = "1"
+
+ph1 = s:option(Value, "path", translate("Path"))
+ph1.placeholder = "/mnt"
+ph1.rmempty = false
+ph1.optional = false
+
+ct = s:option(Value, "clients", translate("Clients"))
+ct.placeholder = "192.168.1.0/24"
+ct.rmempty = false
+ct.optional = false
+
+op = s:option(Value, "options", translate("options"))
+op.placeholder = "rw,sync,root_squash,all_squash,insecure,no_subtree_check"
+op.rmempty = false
+op.optional = false
+
+-- NFS Mount --
+c = m:section(TypedSection, "mount", translate("Mounted Points"))
+c.anonymous = true
+c.addremove = true
+c.template = "cbi/tblsection"
+
+en = c:option(Flag, "enabled", translate("Enable"))
+en.default = "1"
+en.rmempty = false
+
+sr = c:option(Value, "source", translate("source"))
+sr.placeholder = "192.168.1.1:/mnt/*"
+sr.rmempty = false
+sr.optional = false
+
+ph2 = c:option(Value, "target", translate("target"))
+ph2.placeholder = "/mnt/nfs/*"
+ph2.rmempty = false
+ph2.optional = false
+
+op = c:option(Value, "options", translate("options"))
+op.placeholder = "rw,nolock"
+op.rmempty = false
+op.optional = false
+
+de = c:option(Value, "delay", translate("delay"))
+de.placeholder = "5"
+de.rmempty = false
+de.optional = false
+
+if nixio.fs.access("/etc/config/fstab") then
+  ph1.titleref = luci.dispatcher.build_url("admin", "system", "mounts")
+  ph2.titleref = luci.dispatcher.build_url("admin", "system", "mounts")
+end
+
+local apply = luci.http.formvalue("cbi.apply")
+if apply then
+    io.popen("/etc/init.d/nfs reload")
+end
+
+return m

package/lean/luci-app-nfs/po/zh-cn/nfs.po

@@ -0,0 +1,32 @@
+msgid ""
+msgstr ""
+
+msgid "NFS Manage"
+msgstr "NFS 管理"
+
+msgid "Shared Directories"
+msgstr "共享目录"
+
+msgid "Enable"
+msgstr "启用"
+
+msgid "Path"
+msgstr "路径"
+
+msgid "Clients"
+msgstr "允许的客户端"
+
+msgid "Mounted Points"
+msgstr "已挂载的目录"
+
+msgid "source"
+msgstr "源目录"
+
+msgid "target"
+msgstr "挂载到"
+
+msgid "options"
+msgstr "选项"
+
+msgid "delay"
+msgstr "延迟时间"

package/lean/luci-app-nfs/root/etc/config/nfs

@@ -0,0 +1,6 @@
+
+config share
+	option enabled '0'
+	option path '/mnt'
+	option clients '*'
+	option options 'rw,sync,root_squash,all_squash,insecure,no_subtree_check'

package/lean/luci-app-nfs/root/etc/init.d/nfs

@@ -0,0 +1,75 @@
+#!/bin/sh /etc/rc.common
+START=45
+STOP=99
+NAME="nfs"
+
+nfs_share() {
+
+    local enabled path clients options
+    config_get_bool enabled "$1" enabled 0
+    for opt in path clients options
+    do
+        config_get "$opt" "$1" "$opt"
+    done
+
+    if [ "$enabled" = 1 ]; then
+        grep -qs $path /etc/exports
+        if [ $? -ne 0 ]; then
+            echo -e "$path\t$clients($options)" >>/etc/exports
+            exportfs -r
+        fi
+    elif [ "$enabled" = 0 ]; then
+        exportfs -u | grep -qs $path
+        if [ $? -eq 0 ]; then
+            exportfs -u $clients:$path
+        fi
+    fi
+    exportfs -r
+}
+
+nfs_share_stop() {
+    exportfs -au &>/dev/null
+}
+
+nfs_mount() {
+
+    local enabled target source options delay
+    config_get_bool enabled "$1" enabled 0
+    for opt in target source options delay
+    do
+        config_get "$opt" "$1" "$opt"
+    done
+
+    if [ "$enabled" = 1 ]; then
+        if [ "$delay" -a $delay -gt 0 ]; then
+            logger "NetMount: Sleep $delay seconds before mount"
+            sleep $delay
+        fi
+        grep -qs $target /proc/mounts
+        if [ $? -ne 0 ]; then
+            mkdir -p $target
+            logger "NetMount: Mounting $source in $target"
+            mount -t nfs -o $options $source $target
+        fi
+    elif [ "$enabled" = 0 ]; then
+        if grep -qs $target /proc/mounts; then
+            umount -fr $target
+            sleep $delay
+        fi
+    fi
+}
+
+start() {
+    config_load "$NAME"
+    config_foreach nfs_share share
+    config_foreach nfs_mount mount
+}
+
+stop() {
+    nfs_share_stop
+}
+
+restart() {
+    echo > /etc/exports
+    start
+}

package/lean/luci-app-nfs/root/etc/uci-defaults/nfs

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+uci -q batch <<-EOF >/dev/null
+	delete ucitrack.@nfs[-1]
+	add ucitrack nfs
+	set ucitrack.@nfs[-1].init=nfs
+	commit ucitrack
+EOF
+
+/etc/init.d/nfs enable && /etc/init.d/nfs restart
+
+rm -f /tmp/luci-indexcache
+
+exit 0