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| author | Prasad J Pandit <pjp@fedoraproject.org> | 2017-02-20 16:53:07 +0530 |
|---|---|---|
| committer | Daniel P. Berrange <berrange@redhat.com> | 2017-02-27 13:37:14 +0000 |
| commit | 32c813e6c2a857b93b897901b7e20281397528a3 (patch) | |
| tree | 949d518cce241451e88996cb0fa68193194c7410 /crypto | |
| parent | 0072d2a9fce4835ab2b9ee70aaca0169fb25fa0c (diff) | |
| download | qemu-32c813e6c2a857b93b897901b7e20281397528a3.tar.gz | |
crypto: assert cipher algorithm is always valid
Crypto routines 'qcrypto_cipher_get_block_len' and
'qcrypto_cipher_get_key_len' return non-zero cipher block and key
lengths from static arrays 'alg_block_len[]' and 'alg_key_len[]'
respectively. Returning 'zero(0)' value from either of them would
likely lead to an error condition.
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/cipher.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/crypto/cipher.c b/crypto/cipher.c index 9ecaff702b..5a9648942f 100644 --- a/crypto/cipher.c +++ b/crypto/cipher.c @@ -63,18 +63,14 @@ static bool mode_need_iv[QCRYPTO_CIPHER_MODE__MAX] = { size_t qcrypto_cipher_get_block_len(QCryptoCipherAlgorithm alg) { - if (alg >= G_N_ELEMENTS(alg_key_len)) { - return 0; - } + assert(alg < G_N_ELEMENTS(alg_key_len)); return alg_block_len[alg]; } size_t qcrypto_cipher_get_key_len(QCryptoCipherAlgorithm alg) { - if (alg >= G_N_ELEMENTS(alg_key_len)) { - return 0; - } + assert(alg < G_N_ELEMENTS(alg_key_len)); return alg_key_len[alg]; } |