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local mymodule = {}
-- Load libraries
modelfunctions = require("modelfunctions")
fs = require("acf.fs")
format = require("acf.format")
-- Set variables
local configfile = "/etc/ntpd.conf"
local confdfile = "/etc/conf.d/ntpd"
local packagename = "openntpd"
local processname = "ntpd"
-- ################################################################################
-- LOCAL FUNCTIONS
local function last_time_change()
local cmdoutput = "(Have no data on updates)"
-- This works for busybox syslog, which always logs to /var/log/messages
-- FIXME to work with other syslog options
local mess = fs.read_file_as_array("/var/log/messages")
for i=table.maxn(mess),1,-1 do
if string.find(mess[i], "ntpd.*adjusting") then
local cmd1,cmd2 = string.match(mess[i], "^%s*(%S+%s+%S+%s+%S+%s+).*: (.*)$")
cmdoutput = cmd1 .. cmd2
break
end
end
return cmdoutput
end
local function validate_config(config)
local success = true
-- Three of the fields are just lists of IP addresses / hostnames
local tags = {"server", "servers", "listen"}
for i,tag in ipairs(tags) do
local field = config.value[tag]
for j,entry in ipairs(field.value) do
if string.find(entry, "[^%w.-]") then
if not (tag=="listen" and entry=="*") then
field.errtxt = "Invalid IP address/hostname"
success = false
break
end
end
end
end
return success, config
end
-- ################################################################################
-- PUBLIC FUNCTIONS
function mymodule.get_startstop(self, clientdata)
return modelfunctions.get_startstop(processname)
end
function mymodule.startstop_service(self, startstop, action)
return modelfunctions.startstop_service(startstop, action)
end
function mymodule.getstatus()
return modelfunctions.getstatus(processname, packagename, "OpenNTPD Status")
end
function mymodule.getstatusdetails()
local status = {}
status.timechanged = cfe({ value=last_time_change(), label="Previous time adjustment" })
status.date = cfe({ value=os.date(), label="Current time" })
return cfe({ type="group", value=status, label="OpenNTPD Detailed Status" })
end
function mymodule.read_config ()
local config = {}
config.server = cfe({ type="list", value={}, label="Single servers", descr="List of server IP addresses/hostnames. OpenNTPD will attempt to synchronize to one resolved address for each hostname entry.", seq=3 })
config.servers = cfe({ type="list", value={}, label="Multiple servers", descr="List of server IP addresses/hostnames. OpenNTPD will attempt to synchronize to all resolved addresses for each hostname entry.", seq=4 })
config.listen = cfe({ type="list", value={}, label="Addresses to listen on", descr="List of IP addresses/hostnames to listen on. '*' means listen on all local addresses.", seq=2 })
config.setstimeonstartup = cfe({ type="boolean", value=false, label="Set time on startup", seq=1 })
local conf = format.parse_linesandwords(fs.read_file(configfile) or "")
for i,line in ipairs(conf) do
if line[1] == "server" then
table.insert(config.server.value, line[2])
elseif line[1] == "servers" then
table.insert(config.servers.value, line[2])
elseif line[1] == "listen" and line[2] == "on" then
table.insert(config.listen.value, line[3])
end
end
local opts = string.sub(format.parse_ini_file(fs.read_file(confdfile) or "", "", "NTPD_OPTS") or "", 2, -2)
if format.opts_to_table(opts, "-s") then
config.setstimeonstartup.value = true
end
return cfe({ type="group", value=config, label="OpenNTPD Config" })
end
function mymodule.update_config(self, config)
local success, config = validate_config(config)
if success then
local reverseserver = {} for i,val in ipairs(config.value.server.value) do reverseserver[val] = i end
local reverseservers = {} for i,val in ipairs(config.value.servers.value) do reverseservers[val] = i end
local reverselisten = {} for i,val in ipairs(config.value.listen.value) do reverselisten[val] = i end
local configcontent = string.gsub(fs.read_file(configfile) or "", "\n+$", "")
local configlines = format.parse_linesandwords(configcontent)
for i=#configlines,1,-1 do
if configlines[i][1] == "server" then
if reverseserver[configlines[i][2]] then
reverseserver[configlines[i][2]] = nil
else
configcontent = format.replace_line(configcontent, configlines[i].linenum)
end
elseif configlines[i][1] == "servers" then
if reverseservers[configlines[i][2]] then
reverseservers[configlines[i][2]] = nil
else
configcontent = format.replace_line(configcontent, configlines[i].linenum)
end
elseif configlines[i][1] == "listen" and configlines[i][2] == "on" then
if reverselisten[configlines[i][3]] then
reverselisten[configlines[i][3]] = nil
else
configcontent = format.replace_line(configcontent, configlines[i].linenum)
end
end
end
-- Then add the missing ones
lines = {configcontent}
for entry in pairs(reverselisten) do
lines[#lines+1] = "listen on "..entry
end
for entry in pairs(reverseserver) do
lines[#lines+1] = "server "..entry
end
for entry in pairs(reverseservers) do
lines[#lines+1] = "servers "..entry
end
fs.write_file(configfile, table.concat(lines, "\n"))
-- Finally, handle setstimeonstartup
local opts = {}
if config.value.setstimeonstartup.value then opts["-s"] = "" end
fs.write_file(confdfile, format.update_ini_file(fs.read_file(confdfile) or "", "", "NTPD_OPTS", '"'..format.table_to_opts(opts)..'"'))
else
config.errtxt = "Failed to save config"
end
return config
end
function mymodule.get_filedetails()
return modelfunctions.getfiledetails(configfile)
end
function mymodule.update_filedetails(self, filedetails)
return modelfunctions.setfiledetails(self, filedetails, {configfile})
end
function mymodule.get_logfile(self, clientdata)
local retval = cfe({ type="group", value={}, label="Log File Configuration" })
retval.value.facility = cfe({value="daemon", label="Syslog Facility"})
retval.value.grep = cfe({ value="ntpd", label="Grep" })
return retval
end
return mymodule
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