Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Pankaj Gupta <pankaj.gupta@nxp.com>
To:     jarkko@kernel.org, a.fatoum@pengutronix.de, Jason@zx2c4.com,
        jejb@linux.ibm.com, zohar@linux.ibm.com, dhowells@redhat.com,
        sumit.garg@linaro.org, david@sigma-star.at, michael@walle.cc,
        john.ernberg@actia.se, jmorris@namei.org, serge@hallyn.com,
        herbert@gondor.apana.org.au, davem@davemloft.net,
        j.luebbe@pengutronix.de, ebiggers@kernel.org, richard@nod.at,
        keyrings@vger.kernel.org, linux-crypto@vger.kernel.org,
        linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-security-module@vger.kernel.org, sahil.malhotra@nxp.com,
        kshitiz.varshney@nxp.com, horia.geanta@nxp.com,
        pankaj.gupta@nxp.com, V.Sethi@nxp.com
Subject: [RFC PATCH HBK: 8/8] dm-crypt: consumer-app setting the flag-is_hbk
Date:   Tue,  6 Sep 2022 12:21:57 +0530
Message-Id: <20220906065157.10662-9-pankaj.gupta@nxp.com>
In-Reply-To: <20220906065157.10662-1-pankaj.gupta@nxp.com>
References: <20220906065157.10662-1-pankaj.gupta@nxp.com>
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?KHkEF98PjKQ3JuUzBrhd3Zex2/taBCwMIUUeCS6bQUumOLBQ8JYK2ABX+oV2?=
 =?us-ascii?Q?My+Zdgfv55lGaU2DJMMCIpZEzA6+1M6EeYOGvFDgI4gJ709QW82ArtOyQXWd?=
 =?us-ascii?Q?NcFi70T4NYz5tMrNiPaDdI2iiOyeEC+jRz+5HY4+jM6s2iJ5auOGETEAxmqM?=
 =?us-ascii?Q?IDOoi9QSs3SDtJyuhVZRO+Q+4TNbFFaYMp806t5VoJCrA1yAIhE63S9SGdTR?=
 =?us-ascii?Q?m6mPF0fbAHctBdBRB0PgvTdtfbV8I+tqjz/XjFUQjQZg4BEezbtSv+QqBSyr?=
 =?us-ascii?Q?JZOoTnZD0pKELMjale/67X4Iego43BrXf4Iy8tFmIV+YvMDfUHMT7gFycmwG?=
 =?us-ascii?Q?9JSZBB9TElMZrirxaAA62leRJOxgHNBJjX5nCmlWCD8/d261EAHZYA4ON2X1?=
 =?us-ascii?Q?mF75AeA0Ks42sUW7NB6qpgvxT34KsRf4ExK75Hmo7LG93rfZxJF2c4Z9XFv0?=
 =?us-ascii?Q?9nE5BiDiD0Q77/zfEepfB8Qdc3SzsQJYNWYgLAElNbRy1a7D3AQOkrX+Rlm0?=
 =?us-ascii?Q?Uu5ot7gd6vb7F6CowTYK5ZTI9VeMtL6kbhcA8qxXPnH3yTkpiuUeRpckT687?=
 =?us-ascii?Q?G5isQtxDk16aG79WDVK2gTCIHVaoam8XeINnO/tFVvyBFUxG+1qINIfRrVXO?=
 =?us-ascii?Q?xAQoNTe7uJvb1pW9EffEn2bm5o2v8euwy238iRgewhuC2pD5xNW2OfisYlVx?=
 =?us-ascii?Q?3dmM2QS39flob6yei9QFARiaE0mj2zCQwxQtHOwyh/r2NvFfafa70s5UQZ8M?=
 =?us-ascii?Q?lfLgQXzJXTnxN8OVv5w0CJ9Z4DKRwDjbH+y14EiSY8U5hfm1d2QC7MuZmtmi?=
 =?us-ascii?Q?/HLZiyJxnwwOpce39Q6Gc1VQCNFPmePTmT6vV8qAVoc2Hkqs/5le/EYzaSde?=
 =?us-ascii?Q?de+FPbwObkHic8jLU3I2uDgm8BpkfUD2Bqo/w2sK6T4Pm2PNtmpap1uW3yYq?=
 =?us-ascii?Q?uRwV229woQ38s5X4Dqxj9tzh4YOYJ0+Us5T5+utRDf8Mj6cN6IWJKlYhURW7?=
 =?us-ascii?Q?EwdUO1j8Ru5dOffC1kpyeMmU/haKfjlnVZ2h3IYzc4vntEfF+miwpxad5t1D?=
 =?us-ascii?Q?y+tWw5A3eyNFJ3TzBMNsVZND38WAl3K4FoMAl/iwxlO76gi27Khz7J+A7g4G?=
 =?us-ascii?Q?veyE1NARuKvg8R1+9r0ITe+uPzexwqcN1IWl1i9tUtorSGhmNuCkx+1ZGgzz?=
 =?us-ascii?Q?NtEyX2QFjTHz00ZhM+LsUPav77zBSbiQRXoJ/CU4Tyq6GPrNCzS3X6j99kmQ?=
 =?us-ascii?Q?3aP82ldg6y42MddJmuwZ/mBgVjemyHzaT5wIlQYnM0/fb5J647nMghR1Ixaz?=
 =?us-ascii?Q?rtg0p9QhGjZ4oVcEJMNkxaBvQCq4M+RcpHoVVDAf0lONWsnUVY9pg6KIGgX3?=
 =?us-ascii?Q?Azk3h9HpjEKV/LXGyCJvozbjN5KDMgum79Sn8rUrY/iOg2btim+ntT7owDtr?=
 =?us-ascii?Q?t5e9XAjt4nM5M3lNGwnXF8Fl18WYDacFEHOScHtiMmoJnw625lv6P9+Iblal?=
 =?us-ascii?Q?xXukWgYoz1rFitZyC0YCzwXgdfRhmqKygpARcTheB2cxI/R0Ym4oS3Omonc1?=
 =?us-ascii?Q?WO3hWckutlaPM/K3LfzpDBHJF+YYWZCmzviVobIv?=
X-OriginatorOrg: nxp.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 7781a519-9edf-47e9-1acb-08da8fcbcec3
X-MS-Exchange-CrossTenant-AuthSource: DU2PR04MB8630.eurprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Sep 2022 05:51:13.8403
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: je8949H6t1m4jndK2f6WV8PfEl+xlEpTMTOk0Q4/N/+mV45F7zA++PyRLNv5o/rJpO4lBrIIWFCKgtupb5IuIw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB6657
X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,
        RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE
        autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-crypto.vger.kernel.org>
X-Mailing-List: linux-crypto@vger.kernel.org

Consumer application:
- Adding a flag 'is_hbk', in its "struct crypto_config".

- After fetching the keys, it is setting the above
  mentioned flag, based on the key fetched.
  -- Note: Supported for trusted keys only.

- After allocating the tfm, and before calling
  crypto_xxx_setkey(), setting the tfm flag 'is_hbk':
          cc->cipher_tfm.tfms[i]->base.is_hbk = cc->is_hbk;
  -- Note: Supported for symmetric-key ciphers only.

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
---
 drivers/md/dm-crypt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 159c6806c19b..12b400e06cbf 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -221,6 +221,7 @@ struct crypt_config {
 	struct mutex bio_alloc_lock;
 
 	u8 *authenc_key; /* space for keys in authenc() format (if used) */
+	unsigned int is_hbk;
 	u8 key[];
 };
 
@@ -2397,10 +2398,12 @@ static int crypt_setkey(struct crypt_config *cc)
 			r = crypto_aead_setkey(cc->cipher_tfm.tfms_aead[i],
 					       cc->key + (i * subkey_size),
 					       subkey_size);
-		else
+		else {
+			cc->cipher_tfm.tfms[i]->base.is_hbk = cc->is_hbk;
 			r = crypto_skcipher_setkey(cc->cipher_tfm.tfms[i],
 						   cc->key + (i * subkey_size),
 						   subkey_size);
+		}
 		if (r)
 			err = r;
 	}
@@ -2461,6 +2464,7 @@ static int set_key_trusted(struct crypt_config *cc, struct key *key)
 	if (!tkp)
 		return -EKEYREVOKED;
 
+	cc->is_hbk = tkp->is_hw_bound;
 	if (cc->key_size != tkp->key_len)
 		return -EINVAL;
 
-- 
2.17.1