The test cases using tcp_client.pl are failing only on Travis's bionic and
focal systems (I can't reproduce the failure locally). Exclude them.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Don't use an all.sh component because there isn't one that does what we
want (modern Clang with ASan, and test everything).
* We need to set CC explicitly or tweak PATH, because clang in $PATH on
Travis focal instances is Clang 7 which is too old (we want Clang 10).
* Travis lacks the array of versions of openssl and gnutls that we normally
use for testing, so we need to exclude some tests (or build our
own multiple versions of openssl and gnutls).
The SSL test exclusions are ad hoc and based on what currently works.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Restore compatibiltiy testing against OpenSSL for
(D)TLS versions smaller that 1.2.
. Fix the check for support in OpenSSL for these versions
. For test cases for (D)TLS version smaller than 1.2,
restore the configuration of OpenSSL client/server
with the given TLS version, as it was before #5660
that broke it.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
OpenSSL may be configured to support features such as cipher suites or
protocol versions that are disabled by default. Enable them all: we're
testing, we don't care about enabling insecure stuff. This is not needed
with the builds of OpenSSL that we're currently using on the Jenkins CI, but
it's needed with more recent versions such as typically found on developer
machines, and with future CI additions.
The syntax to do that was only introduced in OpenSSL 1.1.0; fortunately we
don't need to do anything special with earlier versions.
With OpenSSL 1.1.1f on Ubuntu 20.04, this is needed to enable TLS 1.0, TLS
1.1 and DTLS 1.0. This also allows SHA-1 in certificates, which is still
needed for a few test cases in ssl-opt.sh. Curiously, this is also needed
for the cipher suite TLS-DHE-PSK-WITH-ARIA-128-GCM-SHA256 (and no other,
including other DHE-PSK or ARIA cipher suites).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Restore compatibiltiy testing against OpenSSL for
(D)TLS versions smaller that 1.2.
. Fix the check for support in OpenSSL for these versions
. For test cases for (D)TLS version smaller than 1.2,
restore the configuration of OpenSSL client/server
with the given TLS version, as it was before #5660
that broke it.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
psa_cipher_encrypt() and psa_cipher_decrypt() sometimes add a zero offset to
a null pointer when the cipher does not use an IV. This is undefined
behavior, although it works as naively expected on most platforms. This
can cause a crash with modern Clang+ASan (depending on compiler optimizations).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The first half of the table is not used, let's reuse index 0 for the
result instead of appending it in the end.
Signed-off-by: Janos Follath <janos.follath@arm.com>
The table size was set before the configured window size bound was
applied which lead to out of bounds access when the configured window
size bound is less.
Signed-off-by: Janos Follath <janos.follath@arm.com>
The window size starts giving diminishing returns around 6 on most
platforms and highly unlikely to be more than 31 in practical use cases.
Still, compilers and static analysers might complain about this and
better to be pedantic.
Co-authored-by: Gilles Peskine <gilles.peskine@arm.com>
Signed-off-by: Janos Follath <janos.follath@arm.com>
With small exponents (for example, when doing RSA-1024 with CRT, each
prime is 512 bits and we'll use wsize = 5 which may be smaller that the
maximum - or even worse when doing public RSA operations which typically
have a 16-bit exponent so we'll use wsize = 1) the usage of W will have
pre-computed values, then empty space, then the accumulator at the very
end.
Move X next to the precomputed values to make accesses more efficient
and intuitive.
Signed-off-by: Janos Follath <janos.follath@arm.com>
Elements of W didn't all have the same owner: all were owned by this
function, except W[x_index]. It is more robust if we make a proper copy
of X.
Signed-off-by: Janos Follath <janos.follath@arm.com>
When x is the most negative value of a two's complement type,
`(unsigned_type)(-x)` has undefined behavior, whereas `-(unsigned_type)x`
has well-defined behavior and does what was intended.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Fix undefined behavior (typically harmless in practice) of
mbedtls_mpi_add_mpi(), mbedtls_mpi_add_abs() and mbedtls_mpi_add_int() when
both operands are 0 and the left operand is represented with 0 limbs.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Since they're part of the public API (even if only through a few functions),
they should be documented.
I deliberately skipped documenting how to configure the size of the type.
Right now, MBEDTLS_HAVE_INT32 and MBEDTLS_HAVE_INT64 have no Doxygen
documentation, so it's ambiguous whether they're part of the public API.
Resolving this ambiguity is out of scope of my current work.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Looking for the .data file doesn't work in out-of-tree builds. Use the
.datax file instead. `make clean` removes all .datax files, so this resolves
the issue of executables not present on the current branch being left behind
after a branch change followed by a `make clean`.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The already existing "x509_csr_check()" function is extended in order
to support/test also CSR's extensions. The test is performed by
adding an extended key usage.
Signed-off-by: Valerio Setti <vsetti@baylibre.com>
