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
Added an additional i386 test to all.sh, to allow one test with -O0 which
compiles out inline assembly, and one to test with -01 which includes the inline
assembly.
The i386 test builds were only building the default configuration and had
no address sanitisation. This commit expands the test configuration to the full
configuration in all.sh and builds with ASan for when the test suites are
executed.
When calling all.sh from a script and using "--keep-going", errors were
sometimes missed due to all.sh always returning 0 "success" return code.
Return 1 if there is any failure encountered during a "keep-going" run.
1. Update the test script to un the ECC tests only if the relevant
configurations are defined in `config.h` file
2. Change the HASH of the ciphersuite from SHA1 based to SHA256
for better example
This is disabled by default since it requires OpenSSL >= 1.1.0 and the current
default version on the CI is 1.0.2. However, the CI also has 1.1.1-rc which
can be used for this.
I'm going to touch the GCM/CCM/CCM-8 code in the next commit, and so far we
didn't have any interop testing for CCM/CCM-8.
Our standard development/testing environment currently has GnuTLS 3.4.10, and
fortunately support for CCM/CCM-8 was introduced in GnuTLS 3.4.0
Support in OpenSSL was introduced in 1.1.0 which is not yet the default
version in the CI.
