Files
strongswan-ext/testing
Tobias Brunner c6aa606a65 testing: Actually send an uncompressed packet in the ipv6/rw-compress-ikev2 scenario
The default of 56 bytes already exceeds the threshold of 90 bytes (8 bytes
ICMP + 40 bytes IPv6 = 104 bytes).  By reducing the size we make sure the
packet is not compressed (40 + 8 + 40 = 88).

This also fixes a strange failure of this scenario due to the recently
added post-test `ip xfrm state` check.  The kernel stores a reference to
the used SAs on the inbound skbuffs and since these are garbage collected
it could take a while until all references to an SA disappear and the SA
is finally destroyed.  But while SAs might not get destroyed immediately
when we delete them, they are actually marked as dead and therefore won't
show up in `ip xfrm state`.  However, that's not the case for the tunnel
SAs the kernel attaches to IPComp SAs, which we don't explicitly delete,
and which aren't modified by the kernel until the IPComp SA is destroyed.
So what happened when the last ping unintentionally got compressed is that
the skbuff had a reference to the IPComp SA and therefore the tunnel SA.
This skbuff often was destroyed after the `ip xfrm state` check ran and
because the tunnel SA would still get reported the test case failed.
2015-10-06 15:48:55 +02:00
..
2015-08-18 21:25:38 +02:00

                 ------------------------------
                  strongSwan Integration Tests
                 ------------------------------


Contents
--------

   1. Building the testing environment
   2. Starting up the testing environment
   3. Running the automated tests
   4. Manual testing


1. Building the testing environment
   --------------------------------

The testing environment can be built with the "make-testing" script after
adjusting the variables in the testing.conf file.  By default everything is
built when executing the script.  Setting any of the ENABLE_BUILD_* variables
in the configuration file to "no" will not build those parts.


2. Starting up the testing environment
   -----------------------------------

When the strongSwan testing environment has been put into place by running
the "make-testing" script you are ready to start up the KVM instances by
executing the "start-testing" script.


3. Running the automated tests
   ---------------------------

The script

    ./do-tests <testnames>

runs the automated tests.  If the <testnames> argument is omitted all tests
are executed, otherwise only the tests listed will be run as shown in the
example below:

    ./do-tests ikev2/net2net-psk ikev2/net2net-cert

Each test is divided into the following phases:

    * Load the test-specific guest configuration if any is provided.

    * Next the "pretest.dat" script found in each test directory is executed.
      Among other commands, strongSwan is started on the IPsec hosts.

    * The "evaltest.dat" script evaluates if the test has been successful.

    * The "posttest.dat" script terminates the test e.g. by stopping
      strongSwan on the IPsec hosts.  It is also responsible to cleaning up
      things (e.g. firewall rules) set up in "pretest.dat".

    * Restore the default configuration on every host (new files have to be
      deleted manually in "posttest.dat").

The test results and configuration files for all tests are stored in a
folder labeled with the current date and time in the $TESTRESULTSDIR directory.

The same results are also automatically transferred to the Apache server
running on guest "winnetou" and can be accessed via the URL

    http://192.168.0.150/testresults/


4. Manual testing
   --------------

Instead of running tests automatically with "do-tests" it is possible to
preload a test scenario with the script:

    scripts/load-testconfig <testname>

Individual configuration files can be changed and any command can be executed by
logging into a guest host directly (via SSH or a console window).  No password
is required to login as root.  The sources for every software built during
"make-testing" are mounted at /root/shared/, which allows you to change and
recompile these components.

After you have finished testing, the default configuration can be restored
with the following command (newly created files have to be deleted manually)

    scripts/restore-defaults