applications/luci-statistics/root/usr/bin/stat-genconfig

   1 #!/usr/bin/lua
   2
   3 --[[
   4
   5 Luci statistics - collectd configuration generator
   6 (c) 2008 Freifunk Leipzig / Jo-Philipp Wich <xm@leipzig.freifunk.net>
   7
   8 Licensed under the Apache License, Version 2.0 (the "License");
   9 you may not use this file except in compliance with the License.
  10 You may obtain a copy of the License at
  11
  12         http://www.apache.org/licenses/LICENSE-2.0
  13
  14 $Id$
  15
  16 ]]--
  17
  18
  19 require("luci.model.uci")
  20 require("luci.sys.iptparser")
  21 require("luci.util")
  22
  23 local ipt = luci.sys.iptparser.IptParser()
  24 local uci = luci.model.uci.cursor()
  25 local sections = uci:get_all( "luci_statistics" )
  26
  27
  28 function section( plugin )
  29
  30         local config = sections[ "collectd_" .. plugin ] or sections["collectd"]
  31
  32         if type(config) == "table" and ( plugin == "collectd" or config.enable == "1" ) then
  33
  34                 local params = ""
  35
  36                 if type( plugins[plugin] ) == "function" then
  37                         params = plugins[plugin]( config )
  38                 else
  39                         params = config_generic( config, plugins[plugin][1], plugins[plugin][2], plugins[plugin][3], plugin == "collectd" )
  40                 end
  41
  42
  43                 if plugin ~= "collectd" then
  44                         print( "LoadPlugin " .. plugin )
  45
  46                         if params:len() > 0 then
  47                                 print( "<Plugin " .. plugin .. ">\n" .. params .. "</Plugin>\n" )
  48                         else
  49                                 print( "" )
  50                         end
  51                 else
  52                         print( params .. "\n" )
  53                 end
  54         end
  55 end
  56
  57 function config_generic( c, singles, bools, lists, nopad )
  58         local str = ""
  59
  60         if type(c) == "table" then
  61
  62                 if type(singles) == "table" then
  63                         for i, key in ipairs( singles ) do
  64                                 if preprocess[key] then
  65                                         c[key] = preprocess[key](c[key])
  66                                 end
  67
  68                                 str = str .. _string( c[key], key, nopad )
  69                         end
  70                 end
  71
  72                 if type(bools) == "table" then
  73                         for i, key in ipairs( bools ) do
  74                                 if preprocess[key] then
  75                                         c[key] = preprocess[key](c[key])
  76                                 end
  77
  78                                 str = str .. _bool( c[key], key, nopad )
  79                         end
  80                 end
  81
  82                 if type(lists) == "table" then
  83                         str = str .. _list_expand( c, lists, nopad )
  84                 end
  85         end
  86
  87         return str
  88 end
  89
  90 function config_exec( c )
  91         local str = ""
  92
  93         for s in pairs(sections) do
  94                 for key, type in pairs({ Exec="collectd_exec_input", NotificationExec="collectd_exec_notify" }) do
  95                         if sections[s][".type"] == type then
  96
  97                                 cmd   = sections[s].cmdline
  98                                 user  = sections[s].cmduser  or "nobody"
  99                                 group = sections[s].cmdgroup or "nogroup"
 100
 101                                 str = str .. "\t" .. key .. " " .. user .. ":" .. group .. ' "' .. cmd .. "\"\n"
 102                         end
 103                 end
 104         end
 105
 106         return str
 107 end
 108
 109 function config_iptables( c )
 110         local str = ""
 111
 112         for s in pairs(sections) do
 113                 if sections[s][".type"] == "collectd_iptables_match" then
 114
 115                         search = { }
 116
 117                         for i, k in ipairs( {
 118                                 "table", "chain", "target", "protocol", "source", "destination",
 119                                 "inputif", "outputif", "options"
 120                         } ) do
 121                                 v = sections[s][k]
 122
 123                                 if type(v) == "string" then
 124                                         if k == "options" then v = luci.util.split( v, "%s+", nil, true ) end
 125                                         search[k] = v
 126                                 end
 127                         end
 128
 129                         for i, rule in ipairs( ipt:find( search ) ) do
 130
 131                                 name = sections[s].name:gsub( "%s+", "_" )
 132                                 if i > 1 then name = name .. "_(" .. i .. ")" end
 133
 134                                 str = str .. "\tChain " .. rule.table .. " " .. rule.chain .. " " .. rule.index .. ' "' .. name .. "\"\n"
 135                         end
 136                 end
 137         end
 138
 139         return str
 140 end
 141
 142 function config_network( c )
 143         local str = ""
 144
 145         for s in pairs(sections) do
 146                 for key, type in pairs({ Listen="collectd_network_listen", Server="collectd_network_server" }) do
 147                         if sections[s][".type"] == type then
 148
 149                                 host = sections[s].host
 150                                 port = sections[s].port
 151
 152                                 if host then
 153                                         if port then
 154                                                 str = str .. "\t" .. key .. " " .. host .. " " .. port .. "\n"
 155                                         else
 156                                                 str = str .. "\t" .. key .. " " .. host .. "\n"
 157                                         end
 158                                 end
 159                         end
 160                 end
 161         end
 162
 163         return str .. _string( c["TimeToLive"], "TimeToLive" )
 164                    .. _string( c["CacheFlush"], "CacheFlush" )
 165                    .. _bool(   c["Forward"],    "Forward"    )
 166 end
 167
 168
 169 function _list_expand( c, l, nopad )
 170         local str = ""
 171
 172         for i, n in ipairs(l) do
 173                 if c[n] then
 174                         if preprocess[n] then
 175                                 c[n] = preprocess[n](c[n])
 176                         end
 177
 178                         if n:find("(%w+)ses") then
 179                                 k = n:gsub("(%w+)ses", "%1s")
 180                         else
 181                                 k = n:gsub("(%w+)s", "%1")
 182                         end
 183
 184                         str = str .. _expand( c[n], k, nopad )
 185                 end
 186         end
 187
 188         return str
 189 end
 190
 191 function _expand( s, n, nopad )
 192         if type(s) == "string" then
 193                 local str = ""
 194
 195                 for i, v in ipairs( luci.util.split( s, "%s+", nil, true ) ) do
 196                         str = str .. _string( v, n, nopad )
 197                 end
 198
 199                 return str
 200         end
 201 end
 202
 203 function _bool( s, n, nopad )
 204
 205         local str = ""
 206         local pad = ""
 207         if not nopad then pad = "\t" end
 208
 209         if s and s == "1" then
 210                 str = pad .. n .. " true"
 211         else
 212                 str = pad .. n .. " false"
 213         end
 214
 215         return str .. "\n"
 216 end
 217
 218 function _string( s, n, nopad )
 219
 220         local str = ""
 221         local pad = ""
 222         if not nopad then pad = "\t" end
 223
 224         if s then
 225                 if s:find("[^%d]") then
 226                         if not s:find("[^%w]") then
 227                                 str = pad .. n .. " " .. s
 228                         else
 229                                 str = pad .. n .. ' "' .. s .. '"'
 230                         end
 231                 else
 232                         str = pad .. n .. " " .. s
 233                 end
 234
 235                 str = str .. "\n"
 236         end
 237
 238         return str
 239 end
 240
 241
 242 plugins = {
 243         collectd = {
 244                 { "BaseDir", "Include", "PIDFile", "PluginDir", "TypesDB", "Interval", "ReadThreads", "Hostname" },
 245                 { },
 246                 { }
 247         },
 248
 249         cpu     = {
 250                 { },
 251                 { },
 252                 { }
 253         },
 254
 255         csv     = {
 256                 { "DataDir" },
 257                 { "StoreRates" },
 258                 { }
 259         },
 260
 261         df      = {
 262                 { },
 263                 { "IgnoreSelected" },
 264                 { "Devices", "MountPoints", "FSTypes" }
 265         },
 266
 267         disk    = {
 268                 { },
 269                 { "IgnoreSelected" },
 270                 { "Disks" }
 271         },
 272
 273         dns     = {
 274                 { },
 275                 { },
 276                 { "Interfaces", "IgnoreSources" }
 277         },
 278
 279         email   = {
 280                 { "SocketFile", "SocketGroup", "SocketPerms", "MaxConns" },
 281                 { },
 282                 { }
 283         },
 284
 285         exec    = config_exec,
 286
 287         interface = {
 288                 { },
 289                 { "IgnoreSelected" },
 290                 { "Interfaces" }
 291         },
 292
 293         iptables = config_iptables,
 294
 295         irq     = {
 296                 { },
 297                 { "IgnoreSelected" },
 298                 { "Irqs" }
 299         },
 300
 301         load    = {
 302                 { },
 303                 { },
 304                 { }
 305         },
 306
 307         logfile = {
 308                 { "LogLevel", "File" },
 309                 { "Timestamp" },
 310                 { }
 311         },
 312
 313         netlink = {
 314                 { },
 315                 { "IgnoreSelected" },
 316                 { "Interfaces", "VerboseInterfaces", "QDiscs", "Classes", "Filters" }
 317         },
 318
 319         network = config_network,
 320
 321         ping    = {
 322                 { "TTL" },
 323                 { },
 324                 { "Hosts" }
 325         },
 326
 327         processes = {
 328                 { },
 329                 { },
 330                 { "Processes" }
 331         },
 332
 333         rrdtool = {
 334                 { "DataDir", "StepSize", "HeartBeat", "RRARows", "XFF", "CacheFlush", "CacheTimeout" },
 335                 { "RRASingle" },
 336                 { "RRATimespans" }
 337         },
 338
 339         tcpconns = {
 340                 { },
 341                 { "ListeningPorts" },
 342                 { "LocalPorts", "RemotePorts" }
 343         },
 344
 345         unixsock = {
 346                 { "SocketFile", "SocketGroup", "SocketPerms" },
 347                 { },
 348                 { }
 349         },
 350
 351         wireless = {
 352                 { },
 353                 { },
 354                 { }
 355         },
 356 }
 357
 358 preprocess = {
 359         RRATimespans = function(val)
 360                 local rv = { }
 361                 for time in val:gmatch("[^%s]+") do
 362                         table.insert( rv, luci.util.parse_units(time) )
 363                 end
 364                 return table.concat(rv, " ")
 365         end
 366 }
 367
 368
 369 section("collectd")
 370
 371 for plugin in pairs(plugins) do
 372         if plugin ~= "collectd" then
 373                 section( plugin )
 374         end
 375 end