Class: Dap::Filter::FilterDecodeWDBRPC_Reply

Inherits:
Object
  • Object
show all
Includes:
BaseDecoder
Defined in:
lib/dap/filter/udp.rb

Overview

Decode a VxWorks WDBRPC probe response ( zmap: wdbrpc_17185.pkt )

Instance Attribute Summary

Attributes included from Base

#name, #opts

Instance Method Summary collapse

Methods included from BaseDecoder

#process

Methods included from Base

#initialize, #process

Instance Method Details

#decode(data) ⇒ Object 



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# File 'lib/dap/filter/udp.rb', line 100

def decode(data)
  buff = data.dup

  info = {}
  head = buff.slice!(0,36)
  return info unless head.to_s.length == 36
  return unless buff.length > 0
  info['agent_ver'] = Dap::Proto::WDBRPC.wdbrpc_decode_str(buff)
  # if this isn't a recoginized version string, it is likely part of an invalid response and should be skipped
  return unless info['agent_ver'] =~ /^\d+\.\d+(?:\.\d+)*(?:-alpha)?$/
  info['agent_mtu'] = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['agent_mod'] = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_type']          = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_vers']          = Dap::Proto::WDBRPC.wdbrpc_decode_str(buff)
  info['rt_cpu_type']      = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_has_fpp']       = Dap::Proto::WDBRPC.wdbrpc_decode_bool(buff)
  info['rt_has_wp']        = Dap::Proto::WDBRPC.wdbrpc_decode_bool(buff)
  info['rt_page_size']     = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_endian']        = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_bsp_name']      = Dap::Proto::WDBRPC.wdbrpc_decode_str(buff)
  info['rt_bootline']      = Dap::Proto::WDBRPC.wdbrpc_decode_str(buff)
  info['rt_membase']       = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_memsize']       = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_region_count']  = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_regions']       = Dap::Proto::WDBRPC.wdbrpc_decode_arr(buff, :int)
  info['rt_hostpool_base'] = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)
  info['rt_hostpool_size'] = Dap::Proto::WDBRPC.wdbrpc_decode_int(buff)

  if info['rt_regions']
    info['rt_regions'] = info['rt_regions'].map{|x| x.to_s}.join(" ")
  end

  nulls = []
  info.each_pair do |k,v|
    nulls << k if v.nil?
  end

  nulls.each {|k| info.delete(k) }

  info
end