Class: Net::IP::Route::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/net/ip/route/parser.rb

Overview

Parses routing table entries

Class Method Summary collapse

Class Method Details

.parse(data) ⇒ Array

Parse the output of ip route into an array of hashes

Parameters:

  • data (String)

Returns:

  • (Array) 


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# File 'lib/net/ip/route/parser.rb', line 38

def self.parse(data)
  list = []
  in_default = false
  data.each_line do |line|
    if in_default == true
      if line.start_with? "\t"
        list << parse_line(line.strip.gsub("nexthop", "default"))
      else
        in_default = false
      end
    elsif line.strip == "default"
      in_default = true
    end

    unless in_default
      list << parse_line(line.strip)
    end
  end
  list
end

.parse_line(line) ⇒ Hash

Parse a routing table entry into a hash

Parameters:

  • line (String)

Returns:

  • (Hash) 


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# File 'lib/net/ip/route/parser.rb', line 12

def self.parse_line(line)
  params = {}

  if line =~ /^(unicast|unreachable|blackhole|prohibit|local|broadcast|throw|nat|via|anycast|multicast)\s+/
    params[:type] = $1
    line = line[$1.length..-1]
  end

  params[:prefix] = line.split.first
  params[:dev] = $1 if line =~ /\s+dev\s+([^\s]+)/
  params[:scope] = $1 if line =~ /\s+scope\s+([^\s]+)/
  params[:metric] = $1 if line =~ /\s+metric\s+([^\s]+)/
  params[:proto] = $1 if line =~ /\s+proto\s+([^\s]+)/
  params[:src] = $1 if line =~ /\s+src\s+([^\s]+)/
  params[:via] = $1 if line =~ /\s+via\s+([^\s]+)/
  params[:weight] = $1 if line =~ /\s+weight\s+([^\s]+)/
  params[:table] = $1 if line =~ /\s+table\s+([^\s]+)/
  params[:error] = $1 if line =~ /\s+error\s+([^\s]+)/

  params
end