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([10.4.50.14]) by sgspiesaa002.seagate.com with ESMTP; 07 Aug 2024 12:53:21 -0700 From: Alejandro Zeise To: qemu-arm@nongnu.org Cc: alejandro.zeise@seagate.com, kris.conklin@seagate.com, jonathan.henze@seagate.com, evan.burgess@seagate.com, clg@kaod.org, peter.maydell@linaro.org, berrange@redhat.com, qemu-devel@nongnu.org Subject: [PATCH v4 02/15] crypto/hash-glib: Implement new hash API Date: Wed, 7 Aug 2024 19:51:09 +0000 Message-Id: <20240807195122.2827364-3-alejandro.zeise@seagate.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240807195122.2827364-1-alejandro.zeise@seagate.com> References: <20240807195122.2827364-1-alejandro.zeise@seagate.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B078:EE_|SJ0PR20MB4536:EE_ X-MS-Office365-Filtering-Correlation-Id: 56d16580-9172-4296-a834-08dcb71aa22d STX-Hosted-IronPort-Oubound: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Ip=[192.55.16.51]; Helo=[sgspzesaa002.seagate.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B078.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR20MB4536 Received-SPF: pass client-ip=139.138.35.140; envelope-from=alejandro.zeise@seagate.com; helo=esa.hc4959-67.iphmx.com X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.144, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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 --- crypto/hash-glib.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) diff --git a/crypto/hash-glib.c b/crypto/hash-glib.c index 82de9db705..9f4490762a 100644 --- a/crypto/hash-glib.c +++ b/crypto/hash-glib.c @@ -1,6 +1,7 @@ /* * QEMU Crypto hash algorithms * + * Copyright (c) 2024 Seagate Technology LLC and/or its Affiliates * Copyright (c) 2016 Red Hat, Inc. * * This library is free software; you can redistribute it and/or @@ -95,6 +96,81 @@ qcrypto_glib_hash_bytesv(QCryptoHashAlgorithm alg, } +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]); + } + + return hash; +} + +static +void qcrypto_glib_hash_free(QCryptoHash *hash) +{ + if (hash->opaque) { + g_checksum_free((GChecksum *) hash->opaque); + } + + g_free(hash); +} + + +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]); + 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_bytesv = qcrypto_glib_hash_bytesv, + .hash_new = qcrypto_glib_hash_new, + .hash_update = qcrypto_glib_hash_update, + .hash_finalize = qcrypto_glib_hash_finalize, + .hash_free = qcrypto_glib_hash_free, };