osx/lldpd.rb

   1 class Lldpd < Formula
   2   desc "Implementation library for LLDP"
   3   homepage "https://vincentbernat.github.io/lldpd/"
   4   url "http://media.luffy.cx/files/lldpd/lldpd-0.7.15.tar.gz"
   5   sha256 "c891d6d4480a6a890561ac43d8cc923bd027deb82a3999d65f37d96ca368c246"
   6
   7   option "with-snmp", "Build SNMP subagent support"
   8   option "with-json", "Build JSON support for lldpcli"
   9
  10   depends_on "pkg-config" => :build
  11   depends_on "readline"
  12   depends_on "libevent"
  13   depends_on "net-snmp" if build.with? "snmp"
  14   depends_on "jansson"  if build.with? "json"
  15
  16   def install
  17     readline = Formula["readline"]
  18     args = ["--prefix=#{prefix}",
  19             "--sysconfdir=#{etc}",
  20             "--localstatedir=#{var}",
  21             "--with-xml",
  22             "--with-readline",
  23             "--with-privsep-chroot=/var/empty",
  24             "--with-launchddaemonsdir=no",
  25             "CPPFLAGS=-I#{readline.include} -DRONLY=1",
  26             "LDFLAGS=-L#{readline.lib}"]
  27     args << (build.with?("snmp") ? "--with-snmp" : "--without-snmp")
  28     args << (build.with?("json") ? "--with-json" : "--without-json")
  29
  30     system "./configure", *args
  31     system "make"
  32     system "make", "install"
  33   end
  34
  35   def dscl(*args)
  36     result = `dscl . -#{args.join(' ')} 2> /dev/null`
  37     if $? != 0
  38       raise ErrorDuringExecution, "Failure while executing dscl: #{args.join(' ')}"
  39     end
  40     return result
  41   end
  42
  43   # Create user and group if needed
  44   def caveats
  45     u = "_lldpd"
  46     unless Kernel.system "/usr/bin/dscl . -read /Users/#{u} &> /dev/null"
  47       # Find a free UID/GID
  48       uids = dscl("list /Users uid")
  49       gids = dscl("list /Groups gid")
  50       uid = 200
  51       while uids =~ Regexp.new("#{Regexp.escape(uid.to_s)}\n") || gids =~ Regexp.new("#{Regexp.escape(uid.to_s)}\n")
  52         uid += 1
  53       end
  54       s = <<-EOS.undent
  55         You need to create a special user to run lldpd.
  56         Just type the following commands:
  57             sudo dscl . -create /Groups/#{u}
  58             sudo dscl . -create /Groups/#{u} PrimaryGroupID #{uid.to_s}
  59             sudo dscl . -create /Groups/#{u} Password "*"
  60             sudo dscl . -create /Groups/#{u} RealName "lldpd privilege separation group"
  61             sudo dscl . -create /Users/#{u}
  62             sudo dscl . -create /Users/#{u} UserShell /usr/bin/false
  63             sudo dscl . -create /Users/#{u} NFSHomeDirectory /var/empty
  64             sudo dscl . -create /Users/#{u} PrimaryGroupID #{uid.to_s}
  65             sudo dscl . -create /Users/#{u} UniqueID #{uid.to_s}
  66             sudo dscl . -create /Users/#{u} Password "*"
  67             sudo dscl . -create /Users/#{u} RealName "lldpd privilege separation user"
  68       EOS
  69       return s
  70     end
  71   end
  72
  73   plist_options :startup => true
  74
  75   def plist
  76     additional_args = ""
  77     if build.with? "snmp"
  78       additional_args += "<string>-x</string>"
  79     end
  80     <<-EOS.undent
  81     <?xml version="1.0" encoding="UTF-8"?>
  82     <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
  83     <plist version="1.0">
  84     <dict>
  85       <key>Label</key>
  86       <string>#{plist_name}</string>
  87       <key>ProgramArguments</key>
  88       <array>
  89         <string>#{opt_sbin}/lldpd</string>
  90         #{additional_args}
  91       </array>
  92       <key>RunAtLoad</key><true/>
  93       <key>KeepAlive</key><true/>
  94     </dict>
  95     </plist>
  96     EOS
  97   end
  98 end