Use the same values as other 3d tests: this makes the test hopefully a bit
faster than the default values, while not increasing the failure rate.
While at it:
- adjust "needs_more_time" setting for 3d interop tests (we can't set the
timeout values for other implementations, so the test might be slow)
- fix some supposedly DTLS 1.0 test that were using dtls1_2 on the command
line
Now that the UDP proxy has the ability to delay specific
handshake message on the client and server side, use
this to rewrite the reordering tests and thereby make
them independent on the choice of PRNG used by the proxy
(which is not stable across platforms).
This commit adds four tests to ssl-opt.sh running default
DTLS client and server with and without datagram packing
enabled, and checking that datagram packing is / is not
used by inspecting the debug output.
The UDP proxy does currently not dissect datagrams into records,
an hence the coverage of the reordering, package loss and duplication
tests is much smaller if datagram packing is in use.
This commit disables datagram packing for most UDP proxy tests,
in particular all 3D (drop, duplicate, delay) tests.
Now that datagram packing can be dynamically configured,
the test exercising the behavior of Mbed TLS when facing
an out-of-order CCS message can be re-introduced, disabling
datagram packing for the sender of the delayed CCS.
The tests "DTLS fragmenting: none (for reference)" and
"DTLS fragmenting: none (for reference) (MTU)" used a
maximum fragment length resp. MTU value of 2048 which
was meant to be large enough so that fragmentation
of the certificate message would not be necessary.
However, it is not large enough to hold the entire flight
to which the certificate belongs, and hence there will
be fragmentation as soon as datagram packing is used.
This commit increases the maximum fragment length resp.
MTU values to 4096 bytes to ensure that even with datagram
packing in place, no fragmentation is necessary.
A similar change was made in "DTLS fragmenting: client (MTU)".
The test exercising a delayed CCS message is not
expected to work when datagram packing is used,
as the current UDP proxy is not able to recognize
records which are not at the beginning of a
datagram.
Adds a requirement for GNUTLS_NEXT (3.5.3 or above, in practice we should
install 3.6.3) on the CI.
See internal ref IOTSSL-2401 for analysis of the bugs and their impact on the
tests.
For now, just check that it causes us to fragment. More tests are coming in
follow-up commits to ensure we respect the exact value set, including when
renegotiating.
Note: no interop tests in ssl-opt.sh for now, as some of them make us run into
bugs in (the CI's default versions of) OpenSSL and GnuTLS, so interop tests
will be added later once the situation is clarified. <- TODO
Test application names and function file names can be constructed
based on the followed naming convention. This commit documents the
naming convention and removes explicit listing of the test
executables and the lookup table for finding .function file.
When using Python 2 (which is done in the Makefile), all #line
directives from the test code were generated with the line number 1.
This traces back to the change in the method name for generators in
Python 2 (next) vs Python 3 (__next__). Override both methods so that
the script remains compatible with both Python 2 and Python 3.
Function test_snprintf() is called by run_test_snprintf() with constant test
data. It gets inlined and is subjected to snprintf format truncation checks
introduced by -Wformat-truncation in gcc-7. -Wformat-truncation is turned
On by -Wall and other similar options. It results in error with -Werror.
-Wformat-truncation makes tests performed by run_test_snprintf() redundant
on gcc. But they are still relevant for other compilers. This commit prevents
inlining of test_snprintf() to avoid gcc compile time checks.
Code generator has been modified to generate case statements for dependency checks and expression checks.
This commit updates the unit tests accordingly.
Test suite header code was not gaurded with test suite dependency.
But some test suites have additional code in the headers section.
Variables in that section become unused if suite functions are
gaurded. Hence gaurded the headers section.
But this changed cuased missing types in get_expression() function
that was originally accessing types defined through suite headers.
Hence had to gaurd expressions code as well.
Gaurding expressions does not allow parsing the parameters when
some types or hash defs are gaurded. Hence added function
check_test() to check if test is allowed or not before parsing the
parameters.
