1 files changed, 108 insertions, 0 deletions
diff --git a/cucumber/features/step_definitions/mac_spoofing.rb b/cucumber/features/step_definitions/mac_spoofing.rb
new file mode 100644
index 00000000..a4aa8714
--- /dev/null
+++ b/cucumber/features/step_definitions/mac_spoofing.rb
@@ -0,0 +1,108 @@
+def all_ethernet_nics
+  $vm.execute_successfully(
+    "get_all_ethernet_nics", :libs => 'hardware'
+  ).stdout.split
+end
+
+When /^I disable MAC spoofing in Tails Greeter$/ do
+  @screen.wait_and_click("TailsGreeterMACSpoofing.png", 30)
+end
+
+Then /^the network device has (its default|a spoofed) MAC address configured$/ do |mode|
+  is_spoofed = (mode == "a spoofed")
+  nic = "eth0"
+  assert_equal([nic], all_ethernet_nics,
+               "We only expected NIC #{nic} but these are present: " +
+               all_ethernet_nics.join(", "))
+  nic_real_mac = $vm.real_mac
+  nic_current_mac = $vm.execute_successfully(
+    "get_current_mac_of_nic #{nic}", :libs => 'hardware'
+  ).stdout.chomp
+  if is_spoofed
+    if nic_real_mac == nic_current_mac
+      save_pcap_file
+      raise "The MAC address was expected to be spoofed but wasn't"
+    end
+  else
+    if nic_real_mac != nic_current_mac
+      save_pcap_file
+      raise "The MAC address is spoofed but was expected to not be"
+    end
+  end
+end
+
+Then /^the real MAC address was (not )?leaked$/ do |mode|
+  is_leaking = mode.nil?
+  leaks = FirewallLeakCheck.new(@sniffer.pcap_file)
+  mac_leaks = leaks.mac_leaks
+  if is_leaking
+    if !mac_leaks.include?($vm.real_mac)
+      save_pcap_file
+      raise "The real MAC address was expected to leak but didn't. We " +
+            "observed the following MAC addresses: #{mac_leaks}"
+    end
+  else
+    if mac_leaks.include?($vm.real_mac)
+      save_pcap_file
+      raise "The real MAC address was leaked but was expected not to. We " +
+            "observed the following MAC addresses: #{mac_leaks}"
+    end
+  end
+end
+
+Given /^macchanger will fail by not spoofing and always returns ([\S]+)$/ do |mode|
+  $vm.execute_successfully("mv /usr/bin/macchanger /usr/bin/macchanger.orig")
+  $vm.execute_successfully("ln -s /bin/#{mode} /usr/bin/macchanger")
+end
+
+Given /^no network interface modules can be unloaded$/ do
+  # Note that the real /sbin/modprobe is a symlink to /bin/kmod, and
+  # for it to run in modprobe compatibility mode the name must be
+  # exactly "modprobe", so we just move it somewhere our of the path
+  # instead of renaming it ".real" or whatever we usuablly do when
+  # diverting executables for wrappers.
+  modprobe_divert = "/usr/local/lib/modprobe"
+  $vm.execute_successfully(
+    "dpkg-divert --add --rename --divert '#{modprobe_divert}' /sbin/modprobe"
+  )
+  fake_modprobe_wrapper = <<EOF
+#!/bin/sh
+if echo "${@}" | grep -q -- -r; then
+    exit 1
+fi
+exec '#{modprobe_divert}' "${@}"
+EOF
+  $vm.file_append('/sbin/modprobe', fake_modprobe_wrapper)
+  $vm.execute_successfully("chmod a+rx /sbin/modprobe")
+end
+
+When /^see the "Network card disabled" notification$/ do
+  robust_notification_wait("MACSpoofNetworkCardDisabled.png", 60)
+end
+
+When /^see the "All networking disabled" notification$/ do
+  robust_notification_wait("MACSpoofNetworkingDisabled.png", 60)
+end
+
+Then /^(\d+|no) network interface(?:s)? (?:is|are) enabled$/ do |expected_nr_nics|
+  # note that "no".to_i => 0 in Ruby.
+  expected_nr_nics = expected_nr_nics.to_i
+  nr_nics = all_ethernet_nics.size
+  assert_equal(expected_nr_nics, nr_nics)
+end
+
+Then /^the MAC spoofing panic mode disabled networking$/ do
+  nm_state = $vm.execute_successfully('systemctl show NetworkManager').stdout
+  nm_is_disabled = $vm.pidof('NetworkManager').empty? &&
+                   nm_state[/^LoadState=masked$/] &&
+                   nm_state[/^ActiveState=inactive$/]
+  assert(nm_is_disabled, "NetworkManager was not disabled")
+  all_ethernet_nics.each do |nic|
+    ["nic_ipv4_addr", "nic_ipv6_addr"].each do |function|
+      addr = $vm.execute_successfully(
+        "#{function} #{nic}", :libs => 'hardware'
+      ).stdout.chomp
+      assert_equal("", addr, "NIC #{nic} was assigned address #{addr}")
+    end
+  end
+end