We currently allocate temporary memory that is used for testing
statically. This renders the testing engine non-reentrant. As
algorithms may nest, i.e., one may construct another in order to
carry out a part of its operation, this is unacceptable. For
example, it has been reported that an AEAD implementation allocates
a cipher in its setkey function, which causes it to fail during
testing as the temporary memory is overwritten.
This patch replaces the static memory with dynamically allocated
buffers. We need a maximum of 16 pages so this slightly increases
the chances of an algorithm failing due to memory shortage.
However, as testing usually occurs at registration, this shouldn't
be a big problem.
Reported-by: Shasi Pulijala <spulijala@amcc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
As it is an skcipher with no IV escapes testing altogether because
we only test givcipher objects. This patch fixes the bypass logic
to test these algorithms.
Conversely, we're currently testing nivaead algorithms with IVs,
which would have deadlocked had it not been for the fact that no
nivaead algorithms have any test vectors. This patch also fixes
that case.
Both fixes are ugly as hell, but this ugliness should hopefully
disappear once we move them into the per-type code (i.e., the
AEAD test would live in aead.c and the skcipher stuff in ablkcipher.c).
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
As it is we only test ciphers when combined with a mode. That means
users that do not invoke a mode of operations may get an untested
cipher.
This patch tests all ciphers using the ECB mode so that simple cipher
users such as ansi-cprng are also protected.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch makes use of the new testing infrastructure by requiring
algorithms to pass a run-time test before they're made available to
users.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch moves the newly created alg_test infrastructure into
cryptomgr. This shall allow us to use it for testing at algorithm
registrations.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu