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require 'fileutils'
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require 'pathname'
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module Proxy::TFTP
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class Server
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include Proxy::Log
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# Creates TFTP pxeconfig file
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def set mac, config
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raise "Invalid parameters received" if mac.nil? || config.nil?
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pxeconfig_file(mac).each do |file|
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write_file file, config
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end
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true
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end
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# Removes pxeconfig files
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def del mac
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pxeconfig_file(mac).each do |file|
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delete_file file
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end
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true
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end
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# Gets the contents of one of pxeconfig files
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def get mac
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file = pxeconfig_file(mac).first
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read_file(file)
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end
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# Creates a default menu file
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def create_default config
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raise "Default config not supplied" if config.nil?
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pxe_default.each do |file|
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write_file file, config
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end
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true
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end
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# returns the absolute path
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def path(p = nil)
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p ||= Proxy::TFTP::Plugin.settings.tftproot
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return (p =~ /^\//) ? p : Pathname.new(File.expand_path(File.dirname(__FILE__))).join(p).to_s
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end
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def read_file(file)
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raise("File #{file} not found") unless File.exist?(file)
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File.open(file, 'r') {|f| f.readlines }
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end
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def write_file(file, contents)
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FileUtils.mkdir_p(File.dirname(file))
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File.open(file, 'w') {|f| f.write(contents)}
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logger.debug "TFTP: #{file} created successfully"
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end
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def delete_file(file)
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if File.exist?(file)
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FileUtils.rm_f file
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logger.debug "TFTP: #{file} removed successfully"
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else
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logger.debug "TFTP: Skipping a request to delete a file which doesn't exists"
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end
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end
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end
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class Syslinux < Server
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def pxeconfig_dir
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"#{path}/pxelinux.cfg"
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end
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def pxe_default
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["#{pxeconfig_dir}/default"]
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end
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def pxeconfig_file mac
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["#{pxeconfig_dir}/01-"+mac.gsub(/:/,"-").downcase]
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end
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end
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class Pxelinux < Syslinux; end
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class Pxegrub < Server
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def pxeconfig_dir
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"#{path}/grub"
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end
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def pxe_default
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["#{pxeconfig_dir}/menu.lst", "#{pxeconfig_dir}/efidefault"]
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end
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def pxeconfig_file mac
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["#{pxeconfig_dir}/menu.lst.01"+mac.gsub(/:/,"").upcase, "#{pxeconfig_dir}/01-"+mac.gsub(/:/,'-').upcase]
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end
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end
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class Pxegrub2 < Server
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def pxeconfig_dir
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"#{path}/grub2"
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end
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def pxe_default
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["#{pxeconfig_dir}/grub.cfg"]
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end
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def pxeconfig_file mac
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["#{pxeconfig_dir}/grub.cfg-01-"+mac.gsub(/:/,'-').downcase]
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end
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end
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class Ztp < Server
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def pxeconfig_dir
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"#{path}/ztp.cfg"
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end
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def pxe_default
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[pxeconfig_dir]
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end
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def pxeconfig_file mac
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["#{pxeconfig_dir}/"+mac.gsub(/:/,"").upcase]
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end
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end
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class Poap < Server
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def pxeconfig_dir
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"#{path}/poap.cfg"
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end
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def pxe_default
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[pxeconfig_dir]
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end
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def pxeconfig_file mac
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["#{pxeconfig_dir}/"+mac.gsub(/:/,"").upcase]
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end
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end
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class Ipxe < Server
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def pxeconfig_dir
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"#{path}/pxelinux.cfg"
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end
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def pxe_default
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["#{pxeconfig_dir}/default.ipxe"]
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end
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def pxeconfig_file mac
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["#{pxeconfig_dir}/01-"+mac.gsub(/:/,"-").downcase+".ipxe"]
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end
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end
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def self.fetch_boot_file dst, src
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filename = boot_filename(dst, src)
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destination = Pathname.new(File.expand_path(filename, Proxy::TFTP::Plugin.settings.tftproot)).cleanpath
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tftproot = Pathname.new(Proxy::TFTP::Plugin.settings.tftproot).cleanpath
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raise "TFTP destination outside of tftproot" unless destination.to_s.start_with?(tftproot.to_s)
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# Ensure that our image directory exists
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# as the dst might contain another sub directory
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FileUtils.mkdir_p destination.parent
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::Proxy::HttpDownload.new(src.to_s, destination.to_s).start
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end
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def self.boot_filename(dst, src)
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# Do not append a '-' if the dst is a directory path
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dst.end_with?('/') ? dst + src.split("/")[-1] : dst + '-' + src.split("/")[-1]
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end
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end
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