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 = $config;
  42         }
  43
  44         function parseEthtool($interface)
  45         {
  46                 // im not going to enjoy this, not one little bit
  47         }
  48
  49         function findHardware()
  50         {
  51
  52
  53                 // first, network interfaces
  54                 $dh = opendir("/sys/class/net/");
  55                 while(($fname = readdir($dh)) !== false) {
  56                         if($fname != "." && $fname != ".." && $fname != "lo" && is_dir("/sys/class/net/$fname/")) {
  57                                 $this->config["hardware"]["netdev"][$fname]["name"] = $fname;
  58                                 // now read drive name if you can
  59                                 if(file_exists("/sys/class/net/$fname/device/uevent")) $fp = fopen("/sys/class/net/$fname/device/uevent", "r");
  60                                 else $fp = false;
  61                                 if($fp) {
  62                                         while(!feof($fp)) {
  63                                                 $line = trim(fgets($fp));
  64                                                 $lpl = explode("=", $line);
  65                                                 if($lpl[0] == "DRIVER") {
  66                                                         $this->config["hardware"]["netdev"][$fname]["driver"] = $lpl[1];
  67                                                 }
  68                                         }
  69                                         fclose($fp);
  70                                 }
  71
  72                                 // find hardware
  73                                 if(file_exists("/sys/class/net/$fname/mtu")) $this->config["hardware"]["netdev"][$fname]["mtu"] = trim(file_get_contents("/sys/class/net/$fname/mtu"));
  74                                 if(file_exists("/sys/class/net/$fname/address")) $this->config["hardware"]["netdev"][$fname]["hwaddress"] = trim(file_get_contents("/sys/class/net/$fname/address"));
  75                                 if(file_exists("/sys/class/net/$fname/bonding")) $this->config["hardware"]["netdev"][$fname]["bonding"] = true;
  76                                 if(file_exists("/sys/class/net/$fname/bridge")) $this->config["hardware"]["netdev"][$fname]["bridge"] = true;
  77                                 if(file_exists("/sys/class/net/$fname/duplex")) {
  78                                         $myval = trim(file_get_contents("/sys/class/net/$fname/duplex"));
  79                                         if($myval == null) $myval = "default";
  80                                         $this->config["hardware"]["netdev"][$fname]["duplex"] = $myval;
  81                                 }
  82                                 if(file_exists("/sys/class/net/$fname/speed")) {
  83                                         $myval = trim(file_get_contents("/sys/class/net/$fname/speed"));
  84                                         if($myval == null) $myval = "default";
  85                                         $this->config["hardware"]["netdev"][$fname]["speed"] = $myval;
  86                                 }
  87                         }
  88                 }
  89         }
  90
  91         function getConfig()
  92         {
  93                 return $this->config;
  94         }
  95
  96         function setConfig($config) {
  97                 $this->config = $config;
  98         }
  99
 100         function applyConfig()
 101         {
 102                 global $AM_DAEMON;
 103                 if(!$AM_DAEMON) return true;
 104
 105                 // oh the joy
 106                 return true;
 107         }
 108
 109
 110
 111         function loadConfigFile($file=null)
 112         {
 113
 114                 if($file == null) {
 115                         if($this->config["status"] == "nodir") {
 116                                 return "nodir";
 117                         } else $file = $this->config_file;
 118                 }
 119
 120                 if(!file_exists($file)) return "noconf";
 121
 122                 $fp = fopen($file, "r");
 123
 124                 $i = 1;
 125                 while($line = fgets($fp)) {
 126                         $line = trim($line);
 127                         echo "read line $line\n";
 128                         if($line != "") $this->addConfigLine($line, $i++);
 129                 }
 130         }
 131
 132         function resolveInterfaceName($name)
 133         {
 134                 // $config only ever contains real interface names
 135                 if(isset($this->config["interface"]["dev"][$name])) return $name;
 136
 137                 if(isset($this->config["interface"])) {
 138                         foreach($this->config["interface"]["dev"] as $key => $var) {
 139                                 if(isset($var["name"])) {
 140                                         if($var["name"] == $name) {
 141                                                 return $key;
 142                                         }
 143                                 }
 144                         }
 145                 } else {
 146                         // have to assume its a hardware name and check /sys
 147                         if(file_exists("/sys/class/net/$name")) return $name;
 148                 }
 149
 150                 return null;
 151         }
 152
 153         function addConfigLine($line, $lineno=0)
 154         {
 155                 $line_n = trim($line);
 156                 $line = $line_n;
 157                 $expl = preg_split("/ +/", $line);
 158
 159                 if(count($expl) < 2) {
 160                         $c = count($expl);
 161                         error_log("Not a valid config line ($c), $line");
 162                         return 0;
 163                 }
 164                 echo "process command ".$expl[0]."\n";
 165
 166                 // TODO: when dealing with descriptions, we need to deal with a null description (i.e. delete the description)
 167                 // find a description
 168                 $description = null;
 169                 $hasdescription = false;
 170                 for($i=0; $i<count($expl); $i++) {
 171                         if($hasdescription !== false) {
 172                                 if($description != null) {
 173                                         $description .= " ";
 174                                 }
 175                                 $description .= $expl[$i];
 176                         }
 177                         if($expl[$i] == "#") {
 178                                 $hasdescription = $i;
 179                         }
 180                 }
 181
 182                 // now rebuild the array if there was a description
 183                 if($hasdescription) {
 184                         for($i=0; $i<$hasdescription; $i++) {
 185                                 $expl_r[$i] = $expl[$i];
 186                         }
 187                         $expl = $expl_r;
 188                 }
 189
 190                 // this is a special case for debugging
 191                 if($expl[0] == "hold") {
 192                         error_log("command is $line");
 193                         return 0;
 194                 }
 195
 196                 $delete = false;
 197                 // check for delete on the line
 198                 if($expl[0] == "delete") {
 199                         $delete = true;
 200
 201                         // re-order the array
 202                         for($i=0; $i < (count($expl)-1); $i++) {
 203                         $expl[$i] = $expl[$i+1];
 204                         }
 205                         unset($expl[count($expl)-1]);
 206                 }
 207
 208                 // now for modify
 209                 $modify = false;
 210                 // check for delete on the line
 211                 if($expl[0] == "modify") {
 212                         $modify = true;
 213
 214                         // re-order the array
 215                         for($i=0; $i < (count($expl)-1); $i++) {
 216                         $expl[$i] = $expl[$i+1];
 217                         }
 218                         unset($expl[count($expl)-1]);
 219                 }
 220
 221                 switch($expl[0]) {
 222                         case "hostname":
 223                                 // set the hostname to $1
 224                                 if($delete) {
 225                                         unset($this->config["hostname"]);
 226                                 } else {
 227                                         $this->config["hostname"] = $expl[1];
 228                                 }
 229                                 break;
 230
 231                         case "domainname":
 232                                 // set the hostname to $1
 233                                 if($delete) {
 234                                         unset($this->config["domainname"]);
 235                                 } else {
 236                                         $this->config["domainname"] = $expl[1];
 237                                 }
 238                                 break;
 239
 240                         case "zone":
 241                                 if($delete) {
 242                                         error_log("delete zone ".$expl[2]);
 243                                         unset($this->config["zone"][$expl[2]]);
 244                                         if(count($this->config["zone"]) < 1) {
 245                                                 error_log("zone now empty, delete zones");
 246                                                 unset($this->config["zone"]);
 247                                         }
 248                                 } else {
 249                                         if($hasdescription) {
 250                                                 $this->config["zone"][$expl[2]]["description"] = $description;
 251                                         }
 252                                         $this->config["zone"][$expl[2]]["name"] = true;
 253                                 }
 254                                 break;
 255
 256                         case "interface":
 257                                 switch($expl[1]) {
 258                                         case "dev":
 259                                                 $int = $this->resolveInterfaceName($expl[2]);
 260
 261                                                 if($int != $expl[2]) {
 262                                                         error_log("resolved int as $int from ".$expl[2]);
 263                                                 }
 264                                                 if($int == null) {
 265                                                         error_log("got config for interface ".$expl[2]." but i cannot find it, i will assume its hardware for now");
 266                                                         $int = $expl[2];
 267                                                 }
 268                                                 if($hasdescription) {
 269                                                         $this->config["interface"]["dev"][$int]["description"] = $description;
 270                                                 }
 271
 272                                                 switch($expl[3]) {
 273                                                         case "address4":
 274                                                                 $this->config["interface"]["dev"]["$int"]["address4"] = $expl[4];
 275                                                                 break;
 276                                                         case "address6":
 277                                                                 $this->config["interface"]["dev"]["$int"]["address6"] = $expl[4];
 278                                                                 break;
 279                                                         case "name":
 280                                                                 $this->config["interface"]["dev"]["$int"]["name"] = $expl[4];
 281                                                                 break;
 282                                                         case "status":
 283                                                                 $this->config["interface"]["dev"]["$int"]["status"] = $expl[4];
 284                                                                 break;
 285                                                         case "mtu":
 286                                                                 $this->config["interface"]["dev"]["$int"]["mtu"] = $expl[4];
 287                                                                 break;
 288                                                         case "zone":
 289                                                                 $this->config["interface"]["dev"]["$int"]["zone"] = $expl[4];
 290                                                                 break;
 291                                                         case "speed":
 292                                                                 $this->config["interface"]["dev"]["$int"]["speed"] = $expl[4];
 293                                                                 break;
 294                                                         case "duplex":
 295                                                                 $this->config["interface"]["$int"]["duplex"] = $expl[4];
 296                                                                 break;
 297                                                 }
 298                                                 break;
 299
 300                                         case "vlan":
 301                                                 $vlanid = $expl[2];
 302                                                 $name = $expl[4];
 303                                                 $from = $expl[6];
 304                                                 $this->config["vlan"][$name]["parent"] = $from;
 305                                                 $this->config["vlan"][$name]["id"] = $vlanid;
 306                                                 if($hasdescription) {
 307                                                         $this->config["vlan"][$name]["description"] = $description;
 308                                                 }
 309                                                 break;
 310
 311                                         case "lag":
 312                                                 $name = $expl[3];
 313                                                 for($i=5; $i<count($expl); $i++) {
 314                                                         $this->config["lag"][$name][$i-5] = $expl[$i];
 315                                                 }
 316                                                 if($hasdescription) {
 317                                                         $this->config["lag"][$name]["description"] = $description;
 318                                                 }
 319                                                 break;
 320
 321                                         case "bridge":
 322                                                 $name = $expl[3];
 323                                                 for($i=5; $i<count($expl); $i++) {
 324                                                         $this->config["bridge"][$name][$i-5] = $expl[$i];
 325                                                 }
 326                                                 if($hasdescription) {
 327                                                         $this->config["bridge"][$name]["description"] = $description;
 328                                                 }
 329                                                 break;
 330
 331                                 }
 332                                 break;
 333
 334
 335                         case "login":
 336                                 if($delete) {
 337                                         unset($this->config["login"][$expl[1]]);
 338                                 } else {
 339                                         $this->config["login"][$expl[1]] = $expl[3];
 340                                         if($hasdescription) {
 341                                                 $this->config["login"][$expl[1]]["description"] = $description;
 342                                         }
 343                                 }
 344                                 break;
 345
 346                         case "route4":
 347                                 if($delete) {
 348                                         unset($this->config["route4"][$expl[1]]);
 349                                 } else {
 350                                         $route = $expl[1];
 351                                         $via = $expl[2];
 352                                         $dest = $expl[3];
 353                                         if($via == "to") {
 354                                                 $this->config["route4"][$route]["address"] = $dest;
 355                                         } else {
 356                                                 $this->config["route4"][$route]["device"] = $dest;
 357                                         }
 358                                         if(isset($expl[4])) {
 359                                                 if($expl[4] == "dev") {
 360                                                         if(isset($expl[5])) {
 361                                                                 $this->config["route4"][$route]["device"] = $expl[5];
 362                                                         }
 363                                                 }
 364                                         }
 365                                         if($hasdescription) {
 366                                                 $this->config["route4"][$route]["description"] = $description;
 367                                         }
 368                                 }
 369                                 break;
 370
 371
 372                         case "route6":
 373                                 if($delete) {
 374                                         unset($this->config["route6"][$expl[1]]);
 375                                 } else {
 376                                         $route = $expl[1];
 377                                         $via = $expl[2];
 378                                         $dest = $expl[3];
 379                                         if($via == "to") {
 380                                                 $this->config["route6"][$route]["address"] = $dest;
 381                                         } else {
 382                                                 $this->config["route6"][$route]["device"] = $dest;
 383                                         }
 384                                         if(isset($expl[4])) {
 385                                                 if($expl[4] == "dev") {
 386                                                         if(isset($expl[5])) {
 387                                                                 $this->config["route6"][$route]["device"] = $expl[5];
 388                                                         }
 389                                                 }
 390                                         }
 391                                         if($hasdescription) {
 392                                                 $this->config["route6"][$route]["description"] = $description;
 393                                         }
 394                                 }
 395                                 // here we should check "$route"
 396                                 break;
 397
 398
 399                         case "dns":
 400                                 if(isset($this->config["dns"]["nservers"])) {
 401                                         $dns_servers = $this->config["dns"]["nservers"];
 402                                 } else {
 403                                         $dns_servers = 0;
 404                                 }
 405                                 if($expl[1] == "server") $this->config["dns"]["server"][$dns_servers]["address"] = $expl[2];
 406                                 if($hasdescription) {
 407                                         $this->config["dns"]["server"][$dns_servers]["description"] = $description;
 408                                 }
 409                                 $this->config["dns"]["nservers"] = $dns_servers+1;
 410                                 break;
 411
 412
 413                         case "ntp":
 414                                 if(isset($this->config["ntp"]["nservers"])) {
 415                                         $ntp_servers = $this->config["ntp"]["nservers"];
 416                                 } else {
 417                                         $ntp_servers = 0;
 418                                 }
 419                                 if($expl[1] == "server") $this->config["ntp"]["server"][$ntp_servers]["address"] = $expl[2];
 420                                 if($hasdescription) {
 421                                         $this->config["ntp"]["server"][$ntp_servers]["description"] = $description;
 422                                 }
 423                                 $this->config["ntp"]["nservers"] = $ntp_servers+1;
 424                                 break;
 425
 426
 427
 428                         default:
 429                                 echo "Errr, unknown config directive on line $lineno, $line\n";
 430                 }
 431
 432
 433         }
 434
 435         function saveConfigFile($file)
 436         {
 437                 global $AM_DAEMON;
 438                 if(!$AM_DAEMON) return true;
 439
 440         }
 441
 442         private $config_file;
 443         private $config;
 444 };
 445
 446 ?>