CI: Add FOU to test.

Sample run
```
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   Test
::   Test
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: [ 21:17:51 ] :: [   LOG    ] :: ip fou tests
:: [ 21:17:51 ] :: [   LOG    ] :: ip fou tests
:: [ 21:17:51 ] :: [  BEGIN   ] :: Running '/usr/bin/python3 /usr/bin/ip-fou-tests.py'
test_configure_fou_receive_port_gre (__main__.IPFOUTests)
Configure a FOU receive port for GRE bound to 7777 ... port 7777 ipproto 47
ok
test_configure_fou_receive_port_gue (__main__.IPFOUTests)
Configure a GUE receive port bound to 9999 ... port 9999 gue
ok
test_configure_fou_receive_port_ipip (__main__.IPFOUTests)
Configure a FOU receive port for IPIP bound to 8888 ... port 8888 ipproto 4
ok
test_configure_fou_with_ipip (__main__.IPFOUTests)
IP over UDP tunnel ... port 9000 ipproto 4
ok

----------------------------------------------------------------------
Ran 4 tests in 0.048s

OK
```

tests/ip-fou-sanity-test/Makefile

@@ -0,0 +1,47 @@
+#!/bin/bash
+# SPDX-License-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-fou-sanity-test
+#   Description: Test basic ip fou funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+#~~~
+
+export TEST=/CoreOS/iproute/Sanity/ip-address-sanity-test
+export TESTVERSION=1.0
+
+BUILT_FILES=
+
+FILES=$(METADATA) runtest.sh Makefile PURPOSE
+
+.PHONY: all install download clean
+
+run: $(FILES) build
+	./runtest.sh
+
+build: $(BUILT_FILES)
+	test -x runtest.sh || chmod a+x runtest.sh
+
+clean:
+	rm -f *~ $(BUILT_FILES)
+
+
+include /usr/share/rhts/lib/rhts-make.include
+
+$(METADATA): Makefile
+	@echo "Owner:           Susant Sahani <susant@redhat.com>" > $(METADATA)
+	@echo "Name:            $(TEST)" >> $(METADATA)
+	@echo "TestVersion:     $(TESTVERSION)" >> $(METADATA)
+	@echo "Path:            $(TEST_DIR)" >> $(METADATA)
+	@echo "Description:     Test basic ip fou funcionality" >> $(METADATA)
+	@echo "Type:            Sanity" >> $(METADATA)
+	@echo "TestTime:        15m" >> $(METADATA)
+	@echo "RunFor:          iproute" >> $(METADATA)
+	@echo "Requires:        iproute" >> $(METADATA)
+	@echo "Priority:        Normal" >> $(METADATA)
+	@echo "License:         GPLv2" >> $(METADATA)
+	@echo "Confidential:    no" >> $(METADATA)
+	@echo "Destructive:     no" >> $(METADATA)
+
+	rhts-lint $(METADATA)

tests/ip-fou-sanity-test/PURPOSE

@@ -0,0 +1,3 @@
+PURPOSE of /CoreOS/iproute/Sanity/ip-fou-sanity-test
+Description: Test basic ip fou funcionality
+Author: Susant Sahani <susant@redhat.com>

tests/ip-fou-sanity-test/ip-fou-tests.py

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-fou-sanity-test
+#   Description: Test basic ip fou funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+# ~~~
+
+import errno
+import os
+import sys
+import time
+import unittest
+import subprocess
+import signal
+import shutil
+
+def setUpModule():
+
+    if shutil.which('ip') is None:
+        raise OSError(errno.ENOENT, 'ip not found')
+
+class IPFOUTests(unittest.TestCase):
+
+    def test_configure_fou_receive_port_gre(self):
+        ''' Configure a FOU receive port for GRE bound to 7777'''
+
+        subprocess.call(" ip fou add port 7777 ipproto 47", shell=True)
+        output=subprocess.check_output(['ip', 'fou', 'show']).rstrip().decode('utf-8')
+        print(output)
+        self.assertRegex(output, "port 7777 ipproto 47")
+
+        subprocess.call("ip fou del port 7777", shell=True)
+
+    def test_configure_fou_receive_port_ipip(self):
+        ''' Configure a FOU receive port for IPIP bound to 8888'''
+
+        subprocess.call("ip fou add port 8888 ipproto 4", shell=True)
+        output=subprocess.check_output(['ip', 'fou', 'show']).rstrip().decode('utf-8')
+        print(output)
+        self.assertRegex(output, "port 8888 ipproto 4")
+
+        subprocess.call("ip fou del port 8888", shell=True)
+
+    def test_configure_fou_receive_port_gue(self):
+        ''' Configure a GUE receive port bound to 9999 '''
+
+        subprocess.call("ip fou add port 9999 gue", shell=True)
+        output=subprocess.check_output(['ip', 'fou', 'show']).rstrip().decode('utf-8')
+        print(output)
+        self.assertRegex(output, "port 9999 gue")
+
+        subprocess.call("ip fou del port 9999", shell=True)
+
+    def test_configure_fou_with_ipip(self):
+        ''' IP over UDP tunnel '''
+
+        subprocess.call("ip fou add port 9000 ipproto 4", shell=True)
+        output=subprocess.check_output(['ip', 'fou', 'show']).rstrip().decode('utf-8')
+        print(output)
+        self.assertRegex(output, "port 9000 ipproto 4")
+
+        subprocess.call("ip link add name tunudp type ipip remote 192.168.2.2 local 192.168.2.1 ttl 225 encap fou encap-sport auto encap-dport 9000", shell=True)
+        output=subprocess.check_output(['ip', '-d', 'link', 'show', 'tunudp']).rstrip().decode('utf-8')
+        self.assertRegex(output, "encap fou")
+
+        subprocess.call("ip link del tunudp", shell=True)
+        subprocess.call("ip fou del port 9000", shell=True)
+
+if __name__ == '__main__':
+    unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout,
+                                                     verbosity=2))

tests/ip-fou-sanity-test/runtest.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+# SPDX-License-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-fou-sanity-test
+#   Description: Test basic ip address label funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+#~~~
+
+# Include Beaker environment
+. /usr/share/beakerlib/beakerlib.sh || exit 1
+
+PACKAGE="iproute"
+
+rlJournalStart
+    rlPhaseStartSetup
+        rlAssertRpm $PACKAGE
+        rlRun "modprobe fou"
+        rlRun "cp ip-fou-tests.py /usr/bin"
+    rlPhaseEnd
+
+    rlPhaseStartTest
+        rlLog "ip fou tests"
+        rlRun "/usr/bin/python3 /usr/bin/ip-fou-tests.py"
+    rlPhaseEnd
+
+    rlPhaseStartCleanup
+        rlRun "rm /usr/bin/ip-fou-tests.py"
+        rlLog "ip fou tests done"
+    rlPhaseEnd
+rlJournalPrintText
+rlJournalEnd
+
+rlGetTestState

tests/tests.yml

@@ -13,6 +13,7 @@
     - ip-link-sanity-test
     - ip-address-sanity-test
     - ip-address-label-sanity-test
+    - ip-fou-sanity-test
     required_packages:
     - iproute
     - bridge-utils