Implements the new hashing API in the GLib hash driver.
Supports creating/destroying a context, updating the context
with input data and obtaining an output hash.
Signed-off-by: Alejandro Zeise <alejandro.ze...@seagate.com>
---
crypto/hash-glib.c | 77 +++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 76 insertions(+), 1 deletion(-)
diff --git a/crypto/hash-glib.c b/crypto/hash-glib.c
index ceaf346bf4..4f343e7d61 100644
--- a/crypto/hash-glib.c
+++ b/crypto/hash-glib.c
@@ -44,8 +44,83 @@ gboolean qcrypto_hash_supports(QCryptoHashAlgorithm alg)
return false;
}
+static
+QCryptoHash *qcrypto_glib_hash_new(QCryptoHashAlgorithm alg,
+ Error **errp)
+{
+ QCryptoHash *hash = NULL;
+ if (!qcrypto_hash_supports(alg)) {
+ error_setg(errp,
+ "Unknown hash algorithm %d",
+ alg);
+ } else {
+ hash = g_new(QCryptoHash, 1);
+ hash->alg = alg;
+ hash->opaque = g_checksum_new(qcrypto_hash_alg_map[alg]);
+ }
-QCryptoHashDriver qcrypto_hash_lib_driver = {
+ return hash;
+}
+
+static
+int qcrypto_glib_hash_free(QCryptoHash *hash)
+{
+ if (hash->opaque) {
+ g_checksum_free((GChecksum *) hash->opaque);
+ }
+
+ g_free(hash);
+
+ return 0;
+}
+
+
+static
+int qcrypto_glib_hash_update(QCryptoHash *hash,
+ const struct iovec *iov,
+ size_t niov,
+ Error **errp)
+{
+ GChecksum *ctx = hash->opaque;
+ for (int i = 0; i < niov; i++) {
+ g_checksum_update(ctx, iov[i].iov_base, iov[i].iov_len);
+ }
+
+ return 0;
+}
+
+static
+int qcrypto_glib_hash_finalize(QCryptoHash *hash,
+ uint8_t **result,
+ size_t *result_len,
+ Error **errp)
+{
+ int ret;
+ GChecksum *ctx = hash->opaque;
+
+ ret = g_checksum_type_get_length(qcrypto_hash_alg_map[hash->alg]);
+ printf("Hash length is %i\n", ret);
+ if (ret < 0) {
+ error_setg(errp, "%s",
+ "Unable to get hash length");
+ *result_len = 0;
+ ret = -1;
+ } else {
+ *result_len = ret;
+ *result = g_new(uint8_t, *result_len);
+
+ g_checksum_get_digest(ctx, *result, result_len);
+ ret = 0;
+ }
+
+ return ret;
+}
+
+QCryptoHashDriver qcrypto_hash_lib_driver = {
+ .hash_new = qcrypto_glib_hash_new,
+ .hash_free = qcrypto_glib_hash_free,
+ .hash_update = qcrypto_glib_hash_update,
+ .hash_finalize = qcrypto_glib_hash_finalize
};
--
2.34.1
