only use sudo with redir when port number is lower than 1024

lib/vagrant-lxc/action/forward_ports.rb

@@ -79,8 +79,11 @@ module Vagrant
           params = %W( --lport=#{host_port} --caddr=#{guest_ip} --cport=#{guest_port} )
           params.unshift "--laddr=#{host_ip}" if host_ip
           params << '--syslog' if ENV['REDIR_LOG']
-          redir_cmd = "sudo redir #{params.join(' ')} 2>/dev/null"
-
+	  if host_port < 1024 
+          	redir_cmd = "sudo redir #{params.join(' ')} 2>/dev/null"
+	  else
+          	redir_cmd = "redir #{params.join(' ')} 2>/dev/null"
+	  end
           @logger.debug "Forwarding port with `#{redir_cmd}`"
           spawn redir_cmd
         end

spec/unit/action/clear_forwarded_ports_spec.rb

@@ -29,7 +29,7 @@ describe Vagrant::LXC::Action::ClearForwardedPorts do
 
   context 'with a valid redir pid' do
     it 'kills known processes' do
-      expect(subject).to have_received(:system).with("pkill -TERM -P #{pid}")
+      expect(subject).to have_received(:system).with("sudo pkill -TERM -P #{pid}")
     end
   end
 
@@ -37,7 +37,7 @@ describe Vagrant::LXC::Action::ClearForwardedPorts do
     let(:pid_cmd) { 'sudo ls' }
 
     it 'does not kill the process' do
-      expect(subject).not_to have_received(:system).with("pkill -TERM -P #{pid}")
+      expect(subject).not_to have_received(:system).with("sudo pkill -TERM -P #{pid}")
     end
   end
 end

spec/unit/action/sudo_forward_ports_spec.rb

@@ -0,0 +1,77 @@
+require 'unit_helper'
+
+require 'tmpdir'
+require 'vagrant-lxc/provider'
+require 'vagrant-lxc/action/forward_ports'
+
+describe Vagrant::LXC::Action::ForwardPorts do
+  let(:app)          { double(:app, call: true) }
+  let(:env)          { {machine: machine, ui: double(info: true)} }
+  let(:machine)      { double(:machine) }
+  let!(:data_dir)    { Pathname.new(Dir.mktmpdir) }
+  let(:provider)     { double(Vagrant::LXC::Provider, ssh_info: {host: container_ip}) }
+  let(:host_ip)      { '127.0.0.1' }
+  let(:host_port)    { 80 }
+  let(:guest_port)   { 80 }
+  let(:container_ip) { '10.0.1.234' }
+  let(:pid)          { 'a-pid' }
+  let(:forward_conf) { {guest: guest_port, host: host_port, host_ip: host_ip} }
+  let(:networks)     { [[:other_config, {}], [:forwarded_port, forward_conf]] }
+
+  subject { described_class.new(app, env) }
+
+  before do
+    machine.stub_chain(:config, :vm, :networks).and_return(networks)
+    machine.stub(provider: provider, data_dir: data_dir)
+
+    subject.stub(exec: true)
+    subject.stub(spawn: pid)
+  end
+
+  after { FileUtils.rm_rf data_dir.to_s }
+
+  it 'forwards ports using redir' do
+    subject.stub(system: true)
+    subject.call(env)
+    expect(subject).to have_received(:spawn).with(
+      "sudo redir --laddr=#{host_ip} --lport=#{host_port} --caddr=#{container_ip} --cport=#{guest_port} 2>/dev/null"
+    )
+  end
+
+  it 'skips --laddr parameter if host_ip is nil' do
+    forward_conf.delete(:host_ip)
+    subject.stub(system: true)
+    subject.call(env)
+    expect(subject).to have_received(:spawn).with(
+      "sudo redir --lport=#{host_port} --caddr=#{container_ip} --cport=#{guest_port} 2>/dev/null"
+    )
+  end
+
+  it 'skips --laddr parameter if host_ip is a blank string' do
+    forward_conf[:host_ip] = ' '
+    subject.stub(system: true)
+    subject.call(env)
+    expect(subject).to have_received(:spawn).with(
+      "sudo redir --lport=#{host_port} --caddr=#{container_ip} --cport=#{guest_port} 2>/dev/null"
+    )
+  end
+
+  it "stores redir pids on machine's data dir" do
+    subject.stub(system: true)
+    subject.call(env)
+    pid_file = data_dir.join('pids', "redir_#{host_port}.pid").read
+    expect(pid_file).to eq(pid)
+  end
+
+  it 'allows disabling a previously forwarded port' do
+    forward_conf[:disabled] = true
+    subject.stub(system: true)
+    subject.call(env)
+    expect(subject).not_to have_received(:spawn)
+  end
+
+  it 'raises RedirNotInstalled error if `redir` is not installed' do
+    subject.stub(system: false)
+    expect { subject.call(env) }.to raise_error(Vagrant::LXC::Errors::RedirNotInstalled)
+  end
+end