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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2009-05-06 14:15:47 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2009-06-02 14:04:45 +1000 |
| commit | f8b0d4d09dc9d0a73fcdcf6c2724650529ec417d (patch) | |
| tree | 922fed01215af467ce07778268466b3c50b09120 /crypto/internal.h | |
| parent | 29ecd4ab3d3aa8bb231361937165dfbbbc534e9a (diff) | |
| download | lwn-f8b0d4d09dc9d0a73fcdcf6c2724650529ec417d.tar.gz lwn-f8b0d4d09dc9d0a73fcdcf6c2724650529ec417d.zip | |
crypto: testmgr - Dynamically allocate xbuf and axbuf
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>
Diffstat (limited to 'crypto/internal.h')
| -rw-r--r-- | crypto/internal.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/crypto/internal.h b/crypto/internal.h index fc76e1f37fc3..113579a82dff 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -121,9 +121,6 @@ int crypto_register_notifier(struct notifier_block *nb); int crypto_unregister_notifier(struct notifier_block *nb); int crypto_probing_notify(unsigned long val, void *v); -int __init testmgr_init(void); -void testmgr_exit(void); - static inline void crypto_alg_put(struct crypto_alg *alg) { if (atomic_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy) |