Class: Yast::NetHwDetectionClass

Inherits:
Module
  • Object
show all
Defined in:
src/modules/NetHwDetection.rb

Instance Method Summary collapse

Instance Method Details

#DuplicateIP(ip) ⇒ Object

Duplicate IP detection

Parameters:

  • ip (String) —

    tested IP address

Returns:

  • true if duplicate found

See Also:

  • ip(8)


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# File 'src/modules/NetHwDetection.rb', line 152

def DuplicateIP(ip)
  # missing param for arping. Arping does nothing in such case only
  # floods logs.
  return false if ip.nil? || ip.empty?

  command = "LC_ALL=C /usr/sbin/ip link show | /usr/bin/grep BROADCAST | " \
            "/usr/bin/grep -v NOARP | /usr/bin/cut -d: -f2"
  exe = SCR.Execute(path(".target.bash_output"), command)
  ifs = Ops.get_string(exe, "stdout", "")
  ifsl = Builtins.filter(Builtins.splitstring(ifs, " \t\n")) { |i| i != "" }

  # #45169: must only probe the interface being set up
  # but I don't know which one it is :-(
  # so pretend there are no dups if we have more interfaces
  return false if Ops.greater_than(Builtins.size(ifsl), 1)

  # find the interface that detects the dup
  ifc = Builtins.find(ifsl) do |ifname|
    # no need to be quiet, diagnostics is good
    command = "/usr/sbin/arping  -D -c2 -w3 -I#{ifname.shellescape} #{ip.shellescape}"
    # 0 no dup, 1 dup, 2 other error (eg. ifc not up, #182473)
    SCR.Execute(path(".target.bash"), command) == 1
  end

  !ifc.nil?
end

#LoadNetModules ⇒ Object

Set up the first eth interface, if not already running WATCH OUT, this is the place where modules are loaded

Returns:

  • true if success



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# File 'src/modules/NetHwDetection.rb', line 88

def LoadNetModules
  log.info "Network detection prepare"

  hardware = ReadHardware("netcard")

  log.debug("Hardware=#{hardware.inspect}")
  return false if hardware.empty?

  @detection_modules = needed_modules(hardware).dup
  @detection_modules.each { |name| load_module(name) }

  log.info("Network detection prepare (end)")

  true
end

#main ⇒ Object 



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# File 'src/modules/NetHwDetection.rb', line 63

def main
  Yast.import "UI"
  textdomain "network"

  Yast.import "Directory"
  Yast.import "Package"
  Yast.import "String"

  Yast.include self, "network/routines.rb"

  # Detection result
  # (in dhcpcd-<i>interface</i>.info format)
  @result = {}

  # True, if detection is running
  @running = false

  @tmpdir = Directory.tmpdir

  @detection_modules = []
end

#ResolveIP(ip) ⇒ Object

this function is moved here just to kee it out of the tangle of includes which will be torn apart in the next release. dependency hell. Resolve IP to hostname

Parameters:

  • ip (String) —

    given IP address

Returns:

  • resolved host



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# File 'src/modules/NetHwDetection.rb', line 185

def ResolveIP(ip)
  # quick check to avoid timeout
  if Builtins.size(ip) == 0 ||
      Convert.to_integer(
        SCR.Execute(
          path(".target.bash"),
          Builtins.sformat("/usr/bin/grep -q %1 /etc/hosts", ip.shellescape)
        )
      ) != 0
    return ""
  end

  command = "/usr/bin/getent hosts #{ip.shellescape} | /usr/bin/sed \"s/^[0-9.: \t]\\+//g\""
  getent = SCR.Execute(path(".target.bash_output"), command)
  hnent = Ops.get_string(getent, "stdout", "")
  Builtins.y2debug("%1", hnent)
  hnent = String.FirstChunk(hnent, " \t\n")
  hnent = "" if hnent.nil?
  Builtins.y2debug("'%1'", hnent)
  String.CutBlanks(hnent)
end

#Start ⇒ Object

Start the detection

Returns:

  • true on success



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# File 'src/modules/NetHwDetection.rb', line 106

def Start
  if @running == true
    Builtins.y2error("Detection already running")
    return false
  end

  Builtins.y2milestone(
    "IFCONFIG1: %1",
    SCR.Execute(path(".target.bash_output"), "/usr/sbin/ip addr show")
  )
  ret = false
  if LoadNetModules()
    @running = true
    ret = true
  end

  Builtins.y2milestone(
    "IFCONFIG2: %1",
    SCR.Execute(path(".target.bash_output"), "/usr/sbin/ip addr show")
  )
  Builtins.y2milestone("Detection start result: %1", ret)
  ret
end

#Stop ⇒ Object

Stop the detection

Returns:

  • true on success



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# File 'src/modules/NetHwDetection.rb', line 132

def Stop
  if @running != true
    Builtins.y2error("Detection not running")
    return false
  end
  @running = false

  Builtins.y2milestone(
    "IFCONFIG3: %1",
    SCR.Execute(path(".target.bash_output"), "/usr/sbin/ip addr show")
  )

  Builtins.y2milestone("Detection stop ")
  true
end