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| author | Gonglei <arei.gonglei@huawei.com> | 2016-09-26 17:23:21 +0800 |
|---|---|---|
| committer | Daniel P. Berrange <berrange@redhat.com> | 2016-10-19 10:09:24 +0100 |
| commit | f844836ddccf3dbcba142128da5dd8ee618f3e91 (patch) | |
| tree | 91556d3ea8b8236cf10d16681dacf2d95dfb4232 /crypto/cipher-gcrypt.c | |
| parent | e8ddc2eae5ccc41f0815e5c43e70cb04a7e67e2e (diff) | |
| download | focaccia-qemu-f844836ddccf3dbcba142128da5dd8ee618f3e91.tar.gz focaccia-qemu-f844836ddccf3dbcba142128da5dd8ee618f3e91.zip | |
crypto: extend mode as a parameter in qcrypto_cipher_supports()
It can't guarantee all cipher modes are supported if one cipher algorithm is supported by a backend. Let's extend qcrypto_cipher_supports() to take both the algorithm and mode as parameters. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'crypto/cipher-gcrypt.c')
| -rw-r--r-- | crypto/cipher-gcrypt.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/crypto/cipher-gcrypt.c b/crypto/cipher-gcrypt.c index da3f4c74db..05026c0a0e 100644 --- a/crypto/cipher-gcrypt.c +++ b/crypto/cipher-gcrypt.c @@ -24,7 +24,8 @@ #include <gcrypt.h> -bool qcrypto_cipher_supports(QCryptoCipherAlgorithm alg) +bool qcrypto_cipher_supports(QCryptoCipherAlgorithm alg, + QCryptoCipherMode mode) { switch (alg) { case QCRYPTO_CIPHER_ALG_DES_RFB: @@ -37,6 +38,16 @@ bool qcrypto_cipher_supports(QCryptoCipherAlgorithm alg) case QCRYPTO_CIPHER_ALG_SERPENT_256: case QCRYPTO_CIPHER_ALG_TWOFISH_128: case QCRYPTO_CIPHER_ALG_TWOFISH_256: + break; + default: + return false; + } + + switch (mode) { + case QCRYPTO_CIPHER_MODE_ECB: + case QCRYPTO_CIPHER_MODE_CBC: + case QCRYPTO_CIPHER_MODE_XTS: + case QCRYPTO_CIPHER_MODE_CTR: return true; default: return false; |