Class: IP::Table

Inherits:
Object
  • Object
show all
Defined in:
lib/iptable/ip.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(load_iptables = true) ⇒ Table

Returns a new instance of Table.



8
9
10
11
 
# File 'lib/iptable/ip.rb', line 8

def initialize(load_iptables = true)
  @chains = {}
  load_chains if load_iptables
end

Instance Attribute Details

#chains ⇒ Object (readonly)

Returns the value of attribute chains.



6
7
8
 
# File 'lib/iptable/ip.rb', line 6

def chains
  @chains
end

Instance Method Details

#add_chain(options) ⇒ Object 



27
28
29
30
31
 
# File 'lib/iptable/ip.rb', line 27

def add_chain(options)
  new_chain = Chain.new(options)
  new_chain.save
  @chains[options[:name]] = new_chain
end

#load_chains ⇒ Object 



18
19
20
21
22
23
24
25
 
# File 'lib/iptable/ip.rb', line 18

def load_chains
  IO.popen("/sbin/iptables -L -n -v -x") do |output|
    output.readlines.each do |line|
      next if match_chain(line)
      @current_chain.match_rule(line) if @current_chain
    end
  end
end

#match_chain(line) ⇒ Object 



33
34
35
36
37
38
39
40
 
# File 'lib/iptable/ip.rb', line 33

def match_chain(line)
  if match = line.match(CHAIN_RE)
    name = match[1]
    @current_chain = @chains[name] = Chain.new(:name => name)
    return true
  end
  false
end

#refresh ⇒ Object 



13
14
15
16
 
# File 'lib/iptable/ip.rb', line 13

def refresh
  @chains = {}
  load_chains
end