From: "Longpeng(Mike)" <longpe...@huawei.com>
1) makes the public APIs in hmac-nettle/gcrypt/glib static,
and rename them with "nettle/gcrypt/glib" prefix.
2) introduces hmac framework, including QCryptoHmacDriver
and new public APIs.
Reviewed-by: Daniel P. Berrange <berra...@redhat.com>
Signed-off-by: Longpeng(Mike) <longpe...@huawei.com>
---
crypto/hmac-gcrypt.c | 51 ++++++++++++-----------------------
crypto/hmac-glib.c | 75 +++++++++++++++++++++------------------------------
crypto/hmac-nettle.c | 52 ++++++++++++-----------------------
crypto/hmac.c | 44 ++++++++++++++++++++++++++++++
crypto/hmacpriv.h | 36 +++++++++++++++++++++++++
include/crypto/hmac.h | 1 +
6 files changed, 145 insertions(+), 114 deletions(-)
create mode 100644 crypto/hmacpriv.h
diff --git a/crypto/hmac-gcrypt.c b/crypto/hmac-gcrypt.c
index 372ad7f..76ca61b 100644
--- a/crypto/hmac-gcrypt.c
+++ b/crypto/hmac-gcrypt.c
@@ -15,6 +15,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "crypto/hmac.h"
+#include "hmacpriv.h"
#include <gcrypt.h>
static int qcrypto_hmac_alg_map[QCRYPTO_HASH_ALG__MAX] = {
@@ -42,10 +43,9 @@ bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg)
return false;
}
-static QCryptoHmacGcrypt *
-qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
- const uint8_t *key, size_t nkey,
- Error **errp)
+void *qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
+ const uint8_t *key, size_t nkey,
+ Error **errp)
{
QCryptoHmacGcrypt *ctx;
gcry_error_t err;
@@ -81,27 +81,24 @@ error:
return NULL;
}
-void qcrypto_hmac_free(QCryptoHmac *hmac)
+static void
+qcrypto_gcrypt_hmac_ctx_free(QCryptoHmac *hmac)
{
QCryptoHmacGcrypt *ctx;
- if (!hmac) {
- return;
- }
-
ctx = hmac->opaque;
gcry_mac_close(ctx->handle);
g_free(ctx);
- g_free(hmac);
}
-int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
- const struct iovec *iov,
- size_t niov,
- uint8_t **result,
- size_t *resultlen,
- Error **errp)
+static int
+qcrypto_gcrypt_hmac_bytesv(QCryptoHmac *hmac,
+ const struct iovec *iov,
+ size_t niov,
+ uint8_t **result,
+ size_t *resultlen,
+ Error **errp)
{
QCryptoHmacGcrypt *ctx;
gcry_error_t err;
@@ -147,21 +144,7 @@ int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
return 0;
}
-QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
- const uint8_t *key, size_t nkey,
- Error **errp)
-{
- QCryptoHmac *hmac;
- QCryptoHmacGcrypt *ctx;
-
- ctx = qcrypto_hmac_ctx_new(alg, key, nkey, errp);
- if (!ctx) {
- return NULL;
- }
-
- hmac = g_new0(QCryptoHmac, 1);
- hmac->alg = alg;
- hmac->opaque = ctx;
-
- return hmac;
-}
+QCryptoHmacDriver qcrypto_hmac_lib_driver = {
+ .hmac_bytesv = qcrypto_gcrypt_hmac_bytesv,
+ .hmac_free = qcrypto_gcrypt_hmac_ctx_free,
+};
diff --git a/crypto/hmac-glib.c b/crypto/hmac-glib.c
index f0ccfd6..8cf6b22 100644
--- a/crypto/hmac-glib.c
+++ b/crypto/hmac-glib.c
@@ -15,6 +15,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "crypto/hmac.h"
+#include "hmacpriv.h"
/* Support for HMAC Algos has been added in GLib 2.30 */
#if GLIB_CHECK_VERSION(2, 30, 0)
@@ -49,10 +50,9 @@ bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg)
return false;
}
-static QCryptoHmacGlib *
-qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
- const uint8_t *key, size_t nkey,
- Error **errp)
+void *qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
+ const uint8_t *key, size_t nkey,
+ Error **errp)
{
QCryptoHmacGlib *ctx;
@@ -78,27 +78,24 @@ error:
return NULL;
}
-void qcrypto_hmac_free(QCryptoHmac *hmac)
+static void
+qcrypto_glib_hmac_ctx_free(QCryptoHmac *hmac)
{
QCryptoHmacGlib *ctx;
- if (!hmac) {
- return;
- }
-
ctx = hmac->opaque;
g_hmac_unref(ctx->ghmac);
g_free(ctx);
- g_free(hmac);
}
-int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
- const struct iovec *iov,
- size_t niov,
- uint8_t **result,
- size_t *resultlen,
- Error **errp)
+static int
+qcrypto_glib_hmac_bytesv(QCryptoHmac *hmac,
+ const struct iovec *iov,
+ size_t niov,
+ uint8_t **result,
+ size_t *resultlen,
+ Error **errp)
{
QCryptoHmacGlib *ctx;
int i, ret;
@@ -129,25 +126,6 @@ int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
return 0;
}
-QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
- const uint8_t *key, size_t nkey,
- Error **errp)
-{
- QCryptoHmac *hmac;
- QCryptoHmacGlib *ctx;
-
- ctx = qcrypto_hmac_ctx_new(alg, key, nkey, errp);
- if (!ctx) {
- return NULL;
- }
-
- hmac = g_new0(QCryptoHmac, 1);
- hmac->alg = alg;
- hmac->opaque = ctx;
-
- return hmac;
-}
-
#else
bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg)
@@ -155,26 +133,33 @@ bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg)
return false;
}
-QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
- const uint8_t *key, size_t nkey,
- Error **errp)
+void *qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
+ const uint8_t *key, size_t nkey,
+ Error **errp)
{
return NULL;
}
-void qcrypto_hmac_free(QCryptoHmac *hmac)
+static void
+qcrypto_glib_hmac_ctx_free(QCryptoHmac *hmac)
{
return;
}
-int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
- const struct iovec *iov,
- size_t niov,
- uint8_t **result,
- size_t *resultlen,
- Error **errp)
+static int
+qcrypto_glib_hmac_bytesv(QCryptoHmac *hmac,
+ const struct iovec *iov,
+ size_t niov,
+ uint8_t **result,
+ size_t *resultlen,
+ Error **errp)
{
return -1;
}
#endif
+
+QCryptoHmacDriver qcrypto_hmac_lib_driver = {
+ .hmac_bytesv = qcrypto_glib_hmac_bytesv,
+ .hmac_free = qcrypto_glib_hmac_ctx_free,
+};
diff --git a/crypto/hmac-nettle.c b/crypto/hmac-nettle.c
index 000dfd9..1d5a915 100644
--- a/crypto/hmac-nettle.c
+++ b/crypto/hmac-nettle.c
@@ -15,6 +15,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "crypto/hmac.h"
+#include "hmacpriv.h"
#include <nettle/hmac.h>
typedef void (*qcrypto_nettle_hmac_setkey)(void *ctx,
@@ -97,10 +98,9 @@ bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg)
return false;
}
-static QCryptoHmacNettle *
-qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
- const uint8_t *key, size_t nkey,
- Error **errp)
+void *qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
+ const uint8_t *key, size_t nkey,
+ Error **errp)
{
QCryptoHmacNettle *ctx;
@@ -117,26 +117,22 @@ qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
return ctx;
}
-void qcrypto_hmac_free(QCryptoHmac *hmac)
+static void
+qcrypto_nettle_hmac_ctx_free(QCryptoHmac *hmac)
{
QCryptoHmacNettle *ctx;
- if (!hmac) {
- return;
- }
-
ctx = hmac->opaque;
-
g_free(ctx);
- g_free(hmac);
}
-int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
- const struct iovec *iov,
- size_t niov,
- uint8_t **result,
- size_t *resultlen,
- Error **errp)
+static int
+qcrypto_nettle_hmac_bytesv(QCryptoHmac *hmac,
+ const struct iovec *iov,
+ size_t niov,
+ uint8_t **result,
+ size_t *resultlen,
+ Error **errp)
{
QCryptoHmacNettle *ctx;
int i;
@@ -169,21 +165,7 @@ int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
return 0;
}
-QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
- const uint8_t *key, size_t nkey,
- Error **errp)
-{
- QCryptoHmac *hmac;
- QCryptoHmacNettle *ctx;
-
- ctx = qcrypto_hmac_ctx_new(alg, key, nkey, errp);
- if (!ctx) {
- return NULL;
- }
-
- hmac = g_new0(QCryptoHmac, 1);
- hmac->alg = alg;
- hmac->opaque = ctx;
-
- return hmac;
-}
+QCryptoHmacDriver qcrypto_hmac_lib_driver = {
+ .hmac_bytesv = qcrypto_nettle_hmac_bytesv,
+ .hmac_free = qcrypto_nettle_hmac_ctx_free,
+};
diff --git a/crypto/hmac.c b/crypto/hmac.c
index 5750405..a4690e3 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -12,9 +12,22 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "crypto/hmac.h"
+#include "hmacpriv.h"
static const char hex[] = "0123456789abcdef";
+int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
+ const struct iovec *iov,
+ size_t niov,
+ uint8_t **result,
+ size_t *resultlen,
+ Error **errp)
+{
+ QCryptoHmacDriver *drv = hmac->driver;
+
+ return drv->hmac_bytesv(hmac, iov, niov, result, resultlen, errp);
+}
+
int qcrypto_hmac_bytes(QCryptoHmac *hmac,
const char *buf,
size_t len,
@@ -70,3 +83,34 @@ int qcrypto_hmac_digest(QCryptoHmac *hmac,
return qcrypto_hmac_digestv(hmac, &iov, 1, digest, errp);
}
+
+QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
+ const uint8_t *key, size_t nkey,
+ Error **errp)
+{
+ QCryptoHmac *hmac;
+ void *ctx;
+
+ ctx = qcrypto_hmac_ctx_new(alg, key, nkey, errp);
+ if (!ctx) {
+ return NULL;
+ }
+
+ hmac = g_new0(QCryptoHmac, 1);
+ hmac->alg = alg;
+ hmac->opaque = ctx;
+ hmac->driver = (void *)&qcrypto_hmac_lib_driver;
+
+ return hmac;
+}
+
+void qcrypto_hmac_free(QCryptoHmac *hmac)
+{
+ QCryptoHmacDriver *drv;
+
+ if (hmac) {
+ drv = hmac->driver;
+ drv->hmac_free(hmac);
+ g_free(hmac);
+ }
+}
diff --git a/crypto/hmacpriv.h b/crypto/hmacpriv.h
new file mode 100644
index 0000000..2be389a
--- /dev/null
+++ b/crypto/hmacpriv.h
@@ -0,0 +1,36 @@
+/*
+ * QEMU Crypto hmac driver supports
+ *
+ * Copyright (c) 2017 HUAWEI TECHNOLOGIES CO., LTD.
+ *
+ * Authors:
+ * Longpeng(Mike) <longpe...@huawei.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * (at your option) any later version. See the COPYING file in the
+ * top-level directory.
+ *
+ */
+
+#ifndef QCRYPTO_HMACPRIV_H
+#define QCRYPTO_HMACPRIV_H
+
+typedef struct QCryptoHmacDriver QCryptoHmacDriver;
+
+struct QCryptoHmacDriver {
+ int (*hmac_bytesv)(QCryptoHmac *hmac,
+ const struct iovec *iov,
+ size_t niov,
+ uint8_t **result,
+ size_t *resultlen,
+ Error **errp);
+
+ void (*hmac_free)(QCryptoHmac *hmac);
+};
+
+extern void *qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
+ const uint8_t *key, size_t nkey,
+ Error **errp);
+extern QCryptoHmacDriver qcrypto_hmac_lib_driver;
+
+#endif
diff --git a/include/crypto/hmac.h b/include/crypto/hmac.h
index 0d3acd7..5e88905 100644
--- a/include/crypto/hmac.h
+++ b/include/crypto/hmac.h
@@ -18,6 +18,7 @@ typedef struct QCryptoHmac QCryptoHmac;
struct QCryptoHmac {
QCryptoHashAlgorithm alg;
void *opaque;
+ void *driver;
};
/**
--
1.8.3.1
