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authorLongpeng(Mike) <longpeng2@huawei.com>2017-07-14 14:03:58 -0400
committerDaniel P. Berrange <berrange@redhat.com>2017-07-19 10:11:04 +0100
commit75c800780919e389e6c272d84b31a33ec348ff79 (patch)
tree7378c7bf211c2d6c8be33f8d490fa8de86a6370a /crypto/cipher.c
parentd962c6266c5361f62f16b3c7b1c5b587502eaf77 (diff)
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crypto: cipher: add cipher driver framework
1) makes the public APIs in cipher-nettle/gcrypt/builtin static, and rename them with "nettle/gcrypt/builtin" prefix. 2) introduces cipher framework, including QCryptoCipherDriver and new public APIs. Reviewed-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'crypto/cipher.c')
-rw-r--r--crypto/cipher.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/crypto/cipher.c b/crypto/cipher.c
index 5a96489..0a3d2e5 100644
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -21,6 +21,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "crypto/cipher.h"
+#include "cipherpriv.h"
static size_t alg_key_len[QCRYPTO_CIPHER_ALG__MAX] = {
@@ -155,3 +156,67 @@ qcrypto_cipher_munge_des_rfb_key(const uint8_t *key,
#else
#include "crypto/cipher-builtin.c"
#endif
+
+QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
+ QCryptoCipherMode mode,
+ const uint8_t *key, size_t nkey,
+ Error **errp)
+{
+ QCryptoCipher *cipher;
+ void *ctx;
+
+ ctx = qcrypto_cipher_ctx_new(alg, mode, key, nkey, errp);
+ if (!ctx) {
+ return NULL;
+ }
+
+ cipher = g_new0(QCryptoCipher, 1);
+ cipher->alg = alg;
+ cipher->mode = mode;
+ cipher->opaque = ctx;
+ cipher->driver = (void *)&qcrypto_cipher_lib_driver;
+
+ return cipher;
+}
+
+
+int qcrypto_cipher_encrypt(QCryptoCipher *cipher,
+ const void *in,
+ void *out,
+ size_t len,
+ Error **errp)
+{
+ QCryptoCipherDriver *drv = cipher->driver;
+ return drv->cipher_encrypt(cipher, in, out, len, errp);
+}
+
+
+int qcrypto_cipher_decrypt(QCryptoCipher *cipher,
+ const void *in,
+ void *out,
+ size_t len,
+ Error **errp)
+{
+ QCryptoCipherDriver *drv = cipher->driver;
+ return drv->cipher_decrypt(cipher, in, out, len, errp);
+}
+
+
+int qcrypto_cipher_setiv(QCryptoCipher *cipher,
+ const uint8_t *iv, size_t niv,
+ Error **errp)
+{
+ QCryptoCipherDriver *drv = cipher->driver;
+ return drv->cipher_setiv(cipher, iv, niv, errp);
+}
+
+
+void qcrypto_cipher_free(QCryptoCipher *cipher)
+{
+ QCryptoCipherDriver *drv;
+ if (cipher) {
+ drv = cipher->driver;
+ drv->cipher_free(cipher);
+ g_free(cipher);
+ }
+}