libcbfwr/config.php

   1 <?php
   2
   3 class Config {
   4         // here we load a config if we can find it
   5         // there are two sides to every class, the fwd side
   6         // and the web page site (command line is web for all intents)
   7         function __construct($look_for_config = false)
   8         {
   9
  10                 if($look_for_config) {
  11                         $this->config_file = null;
  12                         if(file_exists("../var/fw.conf")) {
  13                                 $this->config_file = realpath("../var/fw.conf");
  14                                 $this->config["status"] = "conf";
  15
  16                         }
  17                         if(file_exists("/var/lib/fwd/fw.conf")) {
  18                                 $this->config_file = "/var/lib/fwd/fw.conf";
  19                                 $this->config["status"] = "conf";
  20                         }
  21
  22
  23                         if($this->config_file == null) {
  24                                 $this->config["status"] = "noconf";
  25                                 if(is_dir("/var/lib/fwd/")) {
  26                                         echo "no config file found. Will use ../var/fw.conf for now\n";
  27                                         $this->config_file = "/var/lib/fwd/fw.conf";
  28                                 } else if(is_dir("../var/")) {
  29                                         echo "no config file found. Will use ../var/fw.conf for now\n";
  30                                         $this->config_file = "../var/fw.conf";
  31                                 } else {
  32                                         echo "No directory where i can create a config, bailing\n";
  33                                         $this->config["status"] = "nodir";
  34                                 }
  35                         }
  36                 }
  37         }
  38
  39         function loadConfig($config)
  40         {
  41                 $this->config = $config;
  42         }
  43
  44         function findHardware()
  45         {
  46
  47
  48                 // first, network interfaces
  49                 $dh = opendir("/sys/class/net/");
  50                 while(($fname = readdir($dh)) !== false) {
  51                         if($fname != "." && $fname != ".." && $fname != "lo" && is_dir("/sys/class/net/$fname/")) {
  52                                 $this->config["hardware"]["netdev"][$fname]["name"] = $fname;
  53                                 // now read drive name if you can
  54                                 if(file_exists("/sys/class/net/$fname/device/uevent")) $fp = fopen("/sys/class/net/$fname/device/uevent", "r");
  55                                 else $fp = false;
  56                                 if($fp) {
  57                                         while(!feof($fp)) {
  58                                                 $line = trim(fgets($fp));
  59                                                 $lpl = explode("=", $line);
  60                                                 if($lpl[0] == "DRIVER") {
  61                                                         $this->config["hardware"]["netdev"][$fname]["driver"] = $lpl[1];
  62                                                 }
  63                                         }
  64                                         fclose($fp);
  65                                 }
  66                                 if(file_exists("/sys/class/net/$fname/mtu")) $this->config["hardware"]["netdev"][$fname]["mtu"] = trim(file_get_contents("/sys/class/net/$fname/mtu"));
  67                                 if(file_exists("/sys/class/net/$fname/address")) $this->config["hardware"]["netdev"][$fname]["hwaddress"] = trim(file_get_contents("/sys/class/net/$fname/address"));
  68                                 if(file_exists("/sys/class/net/$fname/bonding")) $this->config["hardware"]["netdev"][$fname]["bonding"] = true;
  69                                 if(file_exists("/sys/class/net/$fname/bridge")) $this->config["hardware"]["netdev"][$fname]["bridge"] = true;
  70                                 if(file_exists("/sys/class/net/$fname/duplex")) {
  71                                         $myval = trim(file_get_contents("/sys/class/net/$fname/duplex"));
  72                                         if($myval == null) $myval = "default";
  73                                         $this->config["hardware"]["netdev"][$fname]["duplex"] = $myval;
  74                                 }
  75                                 if(file_exists("/sys/class/net/$fname/speed")) {
  76                                         $myval = trim(file_get_contents("/sys/class/net/$fname/speed"));
  77                                         if($myval == null) $myval = "default";
  78                                         $this->config["hardware"]["netdev"][$fname]["speed"] = $myval;
  79                                 }
  80                         }
  81                 }
  82         }
  83
  84         function getConfig()
  85         {
  86                 return $this->config;
  87         }
  88
  89         function setConfig($config) {
  90                 $this->config = $config;
  91         }
  92
  93         function applyConfig()
  94         {
  95                 global $AM_DAEMON;
  96                 if(!$AM_DAEMON) return true;
  97
  98                 // oh the joy
  99                 return true;
 100         }
 101
 102
 103
 104         function loadConfigFile($file=null)
 105         {
 106
 107                 if($file == null) {
 108                         if($this->config["status"] == "nodir") {
 109                                 return "nodir";
 110                         } else $file = $this->config_file;
 111                 }
 112
 113                 if(!file_exists($file)) return "noconf";
 114
 115                 $fp = fopen($file, "r");
 116
 117                 $i = 1;
 118                 while($line = fgets($fp)) {
 119                         $line = trim($line);
 120                         echo "read line $line\n";
 121                         if($line != "") $this->addConfigLine($line, $i++);
 122                 }
 123         }
 124
 125         function resolveInterfaceName($name)
 126         {
 127                 // $config only ever contains real interface names
 128                 if(isset($this->config["interface"]["dev"][$name])) return $name;
 129
 130                 if(isset($this->config["interface"])) {
 131                         foreach($this->config["interface"]["dev"] as $key => $var) {
 132                                 if(isset($var["name"])) {
 133                                         if($var["name"] == $name) {
 134                                                 return $key;
 135                                         }
 136                                 }
 137                         }
 138                 } else {
 139                         // have to assume its a hardware name and check /sys
 140                         if(file_exists("/sys/class/net/$name")) return $name;
 141                 }
 142
 143                 return null;
 144         }
 145
 146         function addConfigLine($line, $lineno=0)
 147         {
 148                 $line_n = trim($line);
 149                 $line = $line_n;
 150                 $expl = preg_split("/ +/", $line);
 151
 152                 if(count($expl) < 2) {
 153                         $c = count($expl);
 154                         error_log("Not a valid config line ($c), $line");
 155                         return 0;
 156                 }
 157                 echo "process command ".$expl[0]."\n";
 158
 159                 // find a description
 160                 $description = null;
 161                 $hasdescription = false;
 162                 for($i=0; $i<count($expl); $i++) {
 163                         if($hasdescription !== false) {
 164                                 if($description != null) {
 165                                         $description .= " ";
 166                                 }
 167                                 $description .= $expl[$i];
 168                         }
 169                         if($expl[$i] == "#") {
 170                                 $hasdescription = $i;
 171                         }
 172                 }
 173
 174                 // now rebuild the array if there was a description
 175                 if($hasdescription) {
 176                         for($i=0; $i<$hasdescription; $i++) {
 177                                 $expl_r[$i] = $expl[$i];
 178                         }
 179                         $expl = $expl_r;
 180                 }
 181
 182                 $delete = false;
 183                 // check for delete on the line
 184                 if($expl[0] == "delete") {
 185                         $delete = true;
 186
 187                         // re-order the array
 188                         for($i=0; $i < (count($expl)-1); $i++) {
 189                         $expl[$i] = $expl[$i+1];
 190                         }
 191                         unset($expl[count($expl)-1]);
 192                 }
 193
 194                 // now for modify
 195                 $modify = false;
 196                 // check for delete on the line
 197                 if($expl[0] == "modify") {
 198                         $modify = true;
 199
 200                         // re-order the array
 201                         for($i=0; $i < (count($expl)-1); $i++) {
 202                         $expl[$i] = $expl[$i+1];
 203                         }
 204                         unset($expl[count($expl)-1]);
 205                 }
 206
 207                 switch($expl[0]) {
 208                         case "hostname":
 209                                 // set the hostname to $1
 210                                 if($delete) {
 211                                         unset($this->config["hostname"]);
 212                                 } else {
 213                                         $this->config["hostname"] = $expl[1];
 214                                 }
 215                                 break;
 216
 217                         case "domainname":
 218                                 // set the hostname to $1
 219                                 if($delete) {
 220                                         unset($this->config["domainname"]);
 221                                 } else {
 222                                         $this->config["domainname"] = $expl[1];
 223                                 }
 224                                 break;
 225
 226                         case "zone":
 227                                 if($delete) {
 228                                         error_log("delete zone ".$expl[2]);
 229                                         unset($this->config["zone"][$expl[2]]);
 230                                         if(count($this->config["zone"]) < 1) {
 231                                                 error_log("zone now empty, delete zones");
 232                                                 unset($this->config["zone"]);
 233                                         }
 234                                 } else {
 235                                         if($hasdescription) {
 236                                                 $this->config["zone"][$expl[2]]["description"] = $description;
 237                                         }
 238                                         $this->config["zone"][$expl[2]]["name"] = true;
 239                                 }
 240                                 break;
 241
 242                         case "interface":
 243                                 switch($expl[1]) {
 244                                         case "dev":
 245                                                 $int = $this->resolveInterfaceName($expl[2]);
 246
 247                                                 if($int != $expl[2]) {
 248                                                         error_log("resolved int as $int from ".$expl[2]);
 249                                                 }
 250                                                 if($int == null) {
 251                                                         error_log("got config for interface ".$expl[2]." but i cannot find it, i will assume its hardware for now");
 252                                                         $int = $expl[2];
 253                                                 }
 254                                                 if($hasdescription) {
 255                                                         $this->config["interface"]["dev"][$int]["description"] = $description;
 256                                                 }
 257
 258                                                 switch($expl[3]) {
 259                                                         case "address4":
 260                                                                 $this->config["interface"]["dev"]["$int"]["address4"] = $expl[4];
 261                                                                 break;
 262                                                         case "address6":
 263                                                                 $this->config["interface"]["dev"]["$int"]["address6"] = $expl[4];
 264                                                                 break;
 265                                                         case "name":
 266                                                                 $this->config["interface"]["dev"]["$int"]["name"] = $expl[4];
 267                                                                 break;
 268                                                         case "status":
 269                                                                 $this->config["interface"]["dev"]["$int"]["status"] = $expl[4];
 270                                                                 break;
 271                                                         case "mtu":
 272                                                                 $this->config["interface"]["dev"]["$int"]["mtu"] = $expl[4];
 273                                                                 break;
 274                                                         case "zone":
 275                                                                 $this->config["interface"]["dev"]["$int"]["zone"] = $expl[4];
 276                                                                 break;
 277                                                         case "speed":
 278                                                                 $this->config["interface"]["dev"]["$int"]["speed"] = $expl[4];
 279                                                                 break;
 280                                                         case "duplex":
 281                                                                 $this->config["interface"]["$int"]["duplex"] = $expl[4];
 282                                                                 break;
 283                                                 }
 284                                                 break;
 285
 286                                         case "vlan":
 287                                                 $vlanid = $expl[2];
 288                                                 $name = $expl[4];
 289                                                 $from = $expl[6];
 290                                                 $this->config["vlan"][$name]["parent"] = $from;
 291                                                 $this->config["vlan"][$name]["id"] = $vlanid;
 292                                                 if($hasdescription) {
 293                                                         $this->config["vlan"][$name]["description"] = $description;
 294                                                 }
 295                                                 break;
 296
 297                                         case "lag":
 298                                                 $name = $expl[3];
 299                                                 for($i=5; $i<count($expl); $i++) {
 300                                                         $this->config["lag"][$name][$i-5] = $expl[$i];
 301                                                 }
 302                                                 if($hasdescription) {
 303                                                         $this->config["lag"][$name]["description"] = $description;
 304                                                 }
 305                                                 break;
 306
 307                                         case "bridge":
 308                                                 $name = $expl[3];
 309                                                 for($i=5; $i<count($expl); $i++) {
 310                                                         $this->config["bridge"][$name][$i-5] = $expl[$i];
 311                                                 }
 312                                                 if($hasdescription) {
 313                                                         $this->config["bridge"][$name]["description"] = $description;
 314                                                 }
 315                                                 break;
 316
 317                                 }
 318                                 break;
 319
 320
 321                         case "login":
 322                                 if($delete) {
 323                                         unset($this->config["login"][$expl[1]]);
 324                                 } else {
 325                                         $this->config["login"][$expl[1]] = $expl[3];
 326                                         if($hasdescription) {
 327                                                 $this->config["login"][$expl[1]]["description"] = $description;
 328                                         }
 329                                 }
 330                                 break;
 331
 332                         case "route4":
 333                                 if($delete) {
 334                                         unset($this->config["route4"][$expl[1]]);
 335                                 } else {
 336                                         $route = $expl[1];
 337                                         $via = $expl[2];
 338                                         $dest = $expl[3];
 339                                         if($via == "to") {
 340                                                 $this->config["route4"][$route]["address"] = $dest;
 341                                         } else {
 342                                                 $this->config["route4"][$route]["device"] = $dest;
 343                                         }
 344                                         if(isset($expl[4])) {
 345                                                 if($expl[4] == "dev") {
 346                                                         if(isset($expl[5])) {
 347                                                                 $this->config["route4"][$route]["device"] = $expl[5];
 348                                                         }
 349                                                 }
 350                                         }
 351                                         if($hasdescription) {
 352                                                 $this->config["route4"][$route]["description"] = $description;
 353                                         }
 354                                 }
 355                                 break;
 356
 357
 358                         case "route6":
 359                                 if($delete) {
 360                                         unset($this->config["route6"][$expl[1]]);
 361                                 } else {
 362                                         $route = $expl[1];
 363                                         $via = $expl[2];
 364                                         $dest = $expl[3];
 365                                         if($via == "to") {
 366                                                 $this->config["route6"][$route]["address"] = $dest;
 367                                         } else {
 368                                                 $this->config["route6"][$route]["device"] = $dest;
 369                                         }
 370                                         if(isset($expl[4])) {
 371                                                 if($expl[4] == "dev") {
 372                                                         if(isset($expl[5])) {
 373                                                                 $this->config["route6"][$route]["device"] = $expl[5];
 374                                                         }
 375                                                 }
 376                                         }
 377                                         if($hasdescription) {
 378                                                 $this->config["route6"][$route]["description"] = $description;
 379                                         }
 380                                 }
 381                                 // here we should check "$route"
 382                                 break;
 383
 384
 385                         case "dns":
 386                                 if(isset($this->config["dns"]["nservers"])) {
 387                                         $dns_servers = $this->config["dns"]["nservers"];
 388                                 } else {
 389                                         $dns_servers = 0;
 390                                 }
 391                                 if($expl[1] == "server") $this->config["dns"]["server"][$dns_servers]["address"] = $expl[2];
 392                                 if($hasdescription) {
 393                                         $this->config["dns"]["server"][$dns_servers]["description"] = $description;
 394                                 }
 395                                 $this->config["dns"]["nservers"] = $dns_servers+1;
 396                                 break;
 397
 398
 399                         case "ntp":
 400                                 if(isset($this->config["ntp"]["nservers"])) {
 401                                         $ntp_servers = $this->config["ntp"]["nservers"];
 402                                 } else {
 403                                         $ntp_servers = 0;
 404                                 }
 405                                 if($expl[1] == "server") $this->config["ntp"]["server"][$ntp_servers]["address"] = $expl[2];
 406                                 if($hasdescription) {
 407                                         $this->config["ntp"]["server"][$ntp_servers]["description"] = $description;
 408                                 }
 409                                 $this->config["ntp"]["nservers"] = $ntp_servers+1;
 410                                 break;
 411
 412
 413
 414                         default:
 415                                 echo "Errr, unknown config directive on line $lineno, $line\n";
 416                 }
 417
 418
 419         }
 420
 421         function saveConfigFile($file)
 422         {
 423                 global $AM_DAEMON;
 424                 if(!$AM_DAEMON) return true;
 425
 426         }
 427
 428         private $config_file;
 429         private $config;
 430 };
 431
 432 ?>