diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2018-12-07 19:13:51 +0300 |
|---|---|---|
| committer | Daniel P. Berrangé <berrange@redhat.com> | 2018-12-12 11:16:49 +0000 |
| commit | c972fa123c73501b4b0c6de7873754ea3205a5eb (patch) | |
| tree | bde968050ae58bb203988e66bfe1cbe7110d0fef /crypto/block-qcow.c | |
| parent | 0f0d596cb16a43314c8bc4a9afa2f966203fb05f (diff) | |
crypto: support multiple threads accessing one QCryptoBlock
The two thing that should be handled are cipher and ivgen. For ivgen
the solution is just mutex, as iv calculations should not be long in
comparison with encryption/decryption. And for cipher let's just keep
per-thread ciphers.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Diffstat (limited to 'crypto/block-qcow.c')
| -rw-r--r-- | crypto/block-qcow.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/crypto/block-qcow.c b/crypto/block-qcow.c index 36bf5f09b7..cefb3b2a7b 100644 --- a/crypto/block-qcow.c +++ b/crypto/block-qcow.c @@ -44,6 +44,7 @@ qcrypto_block_qcow_has_format(const uint8_t *buf G_GNUC_UNUSED, static int qcrypto_block_qcow_init(QCryptoBlock *block, const char *keysecret, + size_t n_threads, Error **errp) { char *password; @@ -71,11 +72,11 @@ qcrypto_block_qcow_init(QCryptoBlock *block, goto fail; } - block->cipher = qcrypto_cipher_new(QCRYPTO_CIPHER_ALG_AES_128, - QCRYPTO_CIPHER_MODE_CBC, - keybuf, G_N_ELEMENTS(keybuf), - errp); - if (!block->cipher) { + ret = qcrypto_block_init_cipher(block, QCRYPTO_CIPHER_ALG_AES_128, + QCRYPTO_CIPHER_MODE_CBC, + keybuf, G_N_ELEMENTS(keybuf), + n_threads, errp); + if (ret < 0) { ret = -ENOTSUP; goto fail; } @@ -86,7 +87,7 @@ qcrypto_block_qcow_init(QCryptoBlock *block, return 0; fail: - qcrypto_cipher_free(block->cipher); + qcrypto_block_free_cipher(block); qcrypto_ivgen_free(block->ivgen); return ret; } @@ -99,6 +100,7 @@ qcrypto_block_qcow_open(QCryptoBlock *block, QCryptoBlockReadFunc readfunc G_GNUC_UNUSED, void *opaque G_GNUC_UNUSED, unsigned int flags, + size_t n_threads, Error **errp) { if (flags & QCRYPTO_BLOCK_OPEN_NO_IO) { @@ -112,8 +114,8 @@ qcrypto_block_qcow_open(QCryptoBlock *block, optprefix ? optprefix : ""); return -1; } - return qcrypto_block_qcow_init(block, - options->u.qcow.key_secret, errp); + return qcrypto_block_qcow_init(block, options->u.qcow.key_secret, + n_threads, errp); } } @@ -133,7 +135,7 @@ qcrypto_block_qcow_create(QCryptoBlock *block, return -1; } /* QCow2 has no special header, since everything is hardwired */ - return qcrypto_block_qcow_init(block, options->u.qcow.key_secret, errp); + return qcrypto_block_qcow_init(block, options->u.qcow.key_secret, 1, errp); } |