openwrt中luci界面中简单的添加一个配置说明

1.先在system中添加一个ipv6config

操作：先在/usr/lib/ lua/luci/controller/admin/system.lua 文件中的index页面中添加

entry({"admin", "system", "ipv6config"}, cbi("admin_system/ipv6config"), "ipv6config", 30).dependent=false

system.lua页面全部代码

--[[
LuCI - Lua Configuration Interface

Copyright 2008 Steven Barth <steven@midlink.org>
Copyright 2008-2009 Jo-Philipp Wich <xm@subsignal.org>

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
 http://www.apache.org/licenses/LICENSE-2.0 
$Id: system.lua 7785 2011-10-26 00:58:12Z jow $
]]--

module("luci.controller.admin.system", package.seeall)

function index()
entry({"admin", "system"}, alias("admin", "system", "system"), _("System"), 30).index = true
entry({"admin", "system", "system"}, cbi("admin_system/system"), _("System"), 1)
entry({"admin", "system", "clock_status"}, call("action_clock_status"))

entry({"admin", "system", "admin"}, cbi("admin_system/admin"), _("Administration"), 2)

if nixio.fs.access("/bin/opkg") then
entry({"admin", "system", "packages"}, call("action_packages"), _("Software"), 10)
entry({"admin", "system", "packages", "ipkg"}, form("admin_system/ipkg"))
end

entry({"admin", "system", "startup"}, form("admin_system/startup"), _("Startup"), 45)
entry({"admin", "system", "crontab"}, form("admin_system/crontab"), _("Scheduled Tasks"), 46)

if nixio.fs.access("/etc/config/fstab") then
entry({"admin", "system", "fstab"}, cbi("admin_system/fstab"), _("Mount Points"), 50)
entry({"admin", "system", "fstab", "mount"}, cbi("admin_system/fstab/mount"), nil).leaf = true
entry({"admin", "system", "fstab", "swap"},  cbi("admin_system/fstab/swap"),  nil).leaf = true
end

if nixio.fs.access("/sys/class/leds") then
entry({"admin", "system", "leds"}, cbi("admin_system/leds"), _("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), 60)
end
entry({"admin", "system", "ipv6config"}, cbi("admin_system/ipv6config"), "ipv6config", 30).dependent=false
entry({"admin", "system", "flashops"}, call("action_flashops"), _("Backup / Flash Firmware"), 70)
entry({"admin", "system", "flashops", "backupfiles"}, form("admin_system/backupfiles"))

entry({"admin", "system", "reboot"}, call("action_reboot"), _("Reboot"), 90)
end

function action_clock_status()
local set = tonumber(luci.http.formvalue("set"))
if set ~= nil and set > 0 then
local date = os.date("*t", set)
if date then
-- prevent session timeoutby updating mtime
nixio.fs.utimes(luci.sauth.sessionpath .. "/" .. luci.dispatcher.context.authsession, set, set)

luci.sys.call("date -s '%04d-%02d-%02d %02d:%02d:%02d'" %{
date.year, date.month, date.day, date.hour, date.min, date.sec
})
end
end

luci.http.prepare_content("application/json")
luci.http.write_json({ timestring = os.date("%c") })
end

function action_packages()
local ipkg = require("luci.model.ipkg")
local submit = luci.http.formvalue("submit")
local changes = false
local install = { }
local remove  = { }
local stdout  = { "" }
local stderr  = { "" }
local out, err

-- Display
local display = luci.http.formvalue("display") or "installed"

-- Letter
local letter = string.byte(luci.http.formvalue("letter") or "A", 1)
letter = (letter == 35 or (letter >= 65 and letter <= 90)) and letter or 65

-- Search query
local query = luci.http.formvalue("query")
query = (query ~= '') and query or nil

-- Packets to be installed
local ninst = submit and luci.http.formvalue("install")
local uinst = nil

-- Install from URL
local url = luci.http.formvalue("url")
if url and url ~= '' and submit then
uinst = url
end

-- Do install
if ninst then
install[ninst], out, err = ipkg.install(ninst)
stdout[#stdout+1] = out
stderr[#stderr+1] = err
changes = true
end

if uinst then
local pkg
for pkg in luci.util.imatch(uinst) do
install[uinst], out, err = ipkg.install(pkg)
stdout[#stdout+1] = out
stderr[#stderr+1] = err
changes = true
end
end

-- Remove packets
local rem = submit and luci.http.formvalue("remove")
if rem then
remove[rem], out, err = ipkg.remove(rem)
stdout[#stdout+1] = out
stderr[#stderr+1] = err
changes = true
end

-- Update all packets
local update = luci.http.formvalue("update")
if update then
update, out, err = ipkg.update()
stdout[#stdout+1] = out
stderr[#stderr+1] = err
end

-- Upgrade all packets
local upgrade = luci.http.formvalue("upgrade")
if upgrade then
upgrade, out, err = ipkg.upgrade()
stdout[#stdout+1] = out
stderr[#stderr+1] = err
end

-- List state
local no_lists = true
local old_lists = false
local tmp = nixio.fs.dir("/var/opkg-lists/")
if tmp then
for tmp in tmp do
no_lists = false
tmp = nixio.fs.stat("/var/opkg-lists/"..tmp)
if tmp and tmp.mtime < (os.time() - (24 * 60 * 60)) then
old_lists = true
break
end
end
end

luci.template.render("admin_system/packages", {
display   = display,
letter    = letter,
query     = query,
install   = install,
remove    = remove,
update    = update,
upgrade   = upgrade,
no_lists  = no_lists,
old_lists = old_lists,
stdout    = table.concat(stdout, ""),
stderr    = table.concat(stderr, "")
})

-- Remove index cache
if changes then
nixio.fs.unlink("/tmp/luci-indexcache")
end
end

function action_flashops()
local sys = require "luci.sys"
local fs  = require "luci.fs"

local upgrade_avail = nixio.fs.access("/lib/upgrade/platform.sh")
local reset_avail   = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0

local restore_cmd = "tar -xzC/ >/dev/null 2>&1"
local backup_cmd  = "tar -czT %s 2>/dev/null"
local image_tmp   = "/tmp/firmware.img"

local function image_supported()
-- XXX: yay...
return ( 0 == os.execute(
". /etc/functions.sh; " ..
"include /lib/upgrade; " ..
"platform_check_image %q >/dev/null"
% image_tmp
) )
end

local function image_checksum()
return (luci.sys.exec("md5sum %q" % image_tmp):match("^([^%s]+)"))
end

local function storage_size()
local size = 0
if nixio.fs.access("/proc/mtd") then
for l in io.lines("/proc/mtd") do
local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
if n == "linux" or n == "firmware" then
size = tonumber(s, 16)
break
end
end
elseif nixio.fs.access("/proc/partitions") then
for l in io.lines("/proc/partitions") do
local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
if b and n and not n:match('[0-9]') then
size = tonumber(b) * 1024
break
end
end
end
return size
end

local fp
luci.http.setfilehandler(
function(meta, chunk, eof)
if not fp then
if meta and meta.name == "image" then
fp = io.open(image_tmp, "w")
else
fp = io.popen(restore_cmd, "w")
end
end
if chunk then
fp:write(chunk)
end
if eof then
fp:close()
end
end
)

if luci.http.formvalue("backup") then
--
-- Assemble file list, generate backup
--
local filelist = "/tmp/luci-backup-list.%d" % os.time()
sys.call(
"( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' /etc/sysupgrade.conf " ..
"/lib/upgrade/keep.d/* 2>/dev/null) -type f 2>/dev/null; " ..
"opkg list-changed-conffiles ) | sort -u > %s" % filelist
)
if fs.access(filelist) then
local reader = ltn12_popen(backup_cmd:format(filelist))
luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
luci.sys.hostname(), os.date("%Y-%m-%d")})
luci.http.prepare_content("application/x-targz")
luci.ltn12.pump.all(reader, luci.http.write)
fs.unlink(filelist)
end
elseif luci.http.formvalue("restore") then
--
-- Unpack received .tar.gz
--
local upload = luci.http.formvalue("archive")
if upload and #upload > 0 then
luci.template.render("admin_system/applyreboot")
luci.sys.reboot()
end
elseif luci.http.formvalue("image") or luci.http.formvalue("step") then
--
-- Initiate firmware flash
--
local step = tonumber(luci.http.formvalue("step") or 1)
if step == 1 then
if image_supported() then
luci.template.render("admin_system/upgrade", {
checksum = image_checksum(),
storage  = storage_size(),
size     = nixio.fs.stat(image_tmp).size,
keep     = (not not luci.http.formvalue("keep"))
})
else
nixio.fs.unlink(image_tmp)
luci.template.render("admin_system/flashops", {
reset_avail   = reset_avail,
upgrade_avail = upgrade_avail,
image_invalid = true
})
end
--
-- Start sysupgrade flash
--
elseif step == 2 then
local keep = (luci.http.formvalue("keep") == "1") and "" or "-n"
luci.template.render("admin_system/applyreboot", {
title = luci.i18n.translate("Flashing..."),
msg   = luci.i18n.translate("The system is flashing now.<br /> DO NOT POWER OFF THE DEVICE!<br /> Wait a few minutes until you try to reconnect. It might be necessary to renew the address of your computer to reach the device again, depending on your settings."),
addr  = (#keep > 0) and "192.168.1.1" or nil
})
fork_exec("killall dropbear uhttpd; sleep 1; /sbin/sysupgrade %s %q" %{ keep, image_tmp })
end
elseif reset_avail and luci.http.formvalue("reset") then
--
-- Reset system
--
luci.template.render("admin_system/applyreboot", {
title = luci.i18n.translate("Erasing..."),
msg   = luci.i18n.translate("The system is erasing the configuration partition now and will reboot itself when finished."),
addr  = "192.168.1.1"
})
fork_exec("killall dropbear uhttpd; sleep 1; mtd -r erase rootfs_data")
else
--
-- Overview
--
luci.template.render("admin_system/flashops", {
reset_avail   = reset_avail,
upgrade_avail = upgrade_avail
})
end
end

function action_passwd()
local p1 = luci.http.formvalue("pwd1")
local p2 = luci.http.formvalue("pwd2")
local stat = nil

if p1 or p2 then
if p1 == p2 then
stat = luci.sys.user.setpasswd("root", p1)
else
stat = 10
end
end

luci.template.render("admin_system/passwd", {stat=stat})
end

function action_reboot()
local reboot = luci.http.formvalue("reboot")
luci.template.render("admin_system/reboot", {reboot=reboot})
if reboot then
luci.sys.reboot()
end
end

function fork_exec(command)
local pid = nixio.fork()
if pid > 0 then
return
elseif pid == 0 then
-- change to root dir
nixio.chdir("/")

-- patch stdin, out, err to /dev/null
local null = nixio.open("/dev/null", "w+")
if null then
nixio.dup(null, nixio.stderr)
nixio.dup(null, nixio.stdout)
nixio.dup(null, nixio.stdin)
if null:fileno() > 2 then
null:close()
end
end

-- replace with target command
nixio.exec("/bin/sh", "-c", command)
end
end

function ltn12_popen(command)

local fdi, fdo = nixio.pipe()
local pid = nixio.fork()

if pid > 0 then
fdo:close()
local close
return function()
local buffer = fdi:read(2048)
local wpid, stat = nixio.waitpid(pid, "nohang")
if not close and wpid and stat == "exited" then
close = true
end

if buffer and #buffer > 0 then
return buffer
elseif close then
fdi:close()
return nil
end
end
elseif pid == 0 then
nixio.dup(fdo, nixio.stdout)
fdi:close()
fdo:close()
nixio.exec("/bin/sh", "-c", command)
end
end

效果如下:


2. 编写model

操作：在先在/usr/lib/ lua/luci/model/cbi/admin_system文件中的添加ipv6config.lua 文件

文件全部代码

require("luci.sys")
require("luci.sys.zoneinfo")
require("luci.tools.webadmin")
require("luci.fs")
require("luci.config")

local m, s, o

m = Map("ipv6config", translate("ipv6config"), translate("this is ipv6 pre config"))
m:chain("luci")

s = m:section(TypedSection, "ipv6config", translate("System ipv6"))
s.anonymous = true
s.addremove = false

s:tab("general",  translate("General Settings"))

o = s:taboption("general", Value, "ipv6pre", translate("ipv6 pre config"))
o.datatype = "ipv6config"

function o.write(self, section, value)
Value.write(self, section, value)
end

return m

效果：


3. 添加配置文件

操作：在/etc/config中添加ipv6config文件

代码：

config 'ipv6config'
option 'ipv6pre' '2011:86'

ps: 注意

config 中的ipv6config文件中的ipv6confg与ipv6pre与model中ipv6config.lua两个字段的对应