added default image for all clients (known and unkown)
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11
README.md
11
README.md
@ -29,6 +29,17 @@ db hosts setprop lab01 \
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By running the above command, the **memtest** image will be used for one boot only.
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## default image ##
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When there's no specific setting for the host, the host is not in the hosts db, or the image specified for the host is not available, the *default image* is used.
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To set the default image, you can use this command:
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```bash
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db configuration setprop pxeserver-httpd \
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defaultimage memtest
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```
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## TODO / ideas ##
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* Create a menu, for interactive selection
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@ -1,6 +1,6 @@
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Summary: LibreSchool PXE server
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Name: libreschool-pxeserver
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Version: 1.1.3
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Version: 1.1.4
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Release: 1.ns7
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License: GPL
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BuildArch: noarch
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@ -112,6 +112,9 @@ if [ "$1" = 0 ]; then
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fi
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%changelog
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* Tue Apr 28 2020 Paolo Asperti <paolo@asperti.com> - 1.1.4-1.ns7
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- Added default image setting
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* Sat Apr 25 2020 Paolo Asperti <paolo@asperti.com> - 1.1.3-1.ns7
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- Added KUbuntu 20.04 (live only)
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- Added LUbuntu 20.04 (live only)
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@ -0,0 +1 @@
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localhd
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@ -5,7 +5,7 @@
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*
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* This script manages the loading of the PXE image, based on specific
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* host preferences.
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*
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*
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* php version 5.4.16
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*
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* @category Client_Management
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@ -21,15 +21,16 @@
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require_once "EsmithDatabase.php";
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$hosts_db = new EsmithDatabase('hosts');
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$config_db = new EsmithDatabase('configuration');
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/**
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/**
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* Check if specified mac address is valid
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*
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*
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* We should've used filter_var($mac, FILTER_VALIDATE_MAC) but it's available
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* from PHP 5.5.0 and we have 5.4.16. Too bad.
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*
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*
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* @param string $mac the mac address to examine
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*
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*
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* @return bool if the macaddress is valid or not
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*/
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function isValidMAC($mac) {
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@ -50,11 +51,11 @@ function isValidMAC($mac) {
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}
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}
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/**
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/**
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* Get the client corresponding a specific mac address
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*
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*
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* @param string $mac the mac address of the client
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*
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*
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* @return host||boolean client if found, false otherwise
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*/
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function getClientFromMAC($mac=false) {
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@ -67,11 +68,11 @@ function getClientFromMAC($mac=false) {
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}
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}
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/**
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/**
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* Default exit string
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* This string will instruct to reload the script
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* This string will instruct to reload the script
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* passing the mac address of the calling machine
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*
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*
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* @return null
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*/
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function defaultExit() {
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@ -83,23 +84,43 @@ chain http://".$_SERVER['HTTP_HOST'].$_SERVER["SCRIPT_NAME"]."?mac=\${mac}
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}
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/**
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/**
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* Check if specified PXE image exists
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*
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*
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* @param string $i image name
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*
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*
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* @return bool if the image exists or not
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*/
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function imageExists($i) {
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$pwd = dirname(__FILE__);
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$dir = $pwd . '/' . $i;
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$bootfile = $dir . '/boot';
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$iso_is_mounted = $dir . '/iso_is_mounted';
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$iso_ok = ! file_exists($iso_is_mounted) ||
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$bootfile = $dir . '/boot';
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$iso_is_mounted = $dir . '/iso_is_mounted';
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$iso_ok = ! file_exists($iso_is_mounted) ||
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(is_link($iso_is_mounted) && is_readable($iso_is_mounted));
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return is_dir($dir) && is_readable($bootfile) && $iso_ok;
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}
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/**
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* Try to boot the default PXE Image
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*
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* @return void
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*/
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function try_defaultimage() {
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global $config_db;
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$defaultimage = $config_db->getProp('pxeserver-httpd','defaultimage');
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if (imageExists($defaultimage)) {
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print("#!ipxe
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# Loading PXEImage
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chain " . $defaultimage . "/boot
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");
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exit();
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}
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}
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if (!isset($_REQUEST['mac'])) {
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defaultExit();
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}
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@ -112,7 +133,7 @@ if (!isValidMAC($_REQUEST['mac'])) {
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$mac = $_REQUEST['mac'];
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$client = getClientFromMAC($mac);
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if (!$client) {
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// TODO: make up a default for unknown clients
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try_defaultimage();
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defaultExit();
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}
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