From: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
To: Stephen Smalley <stephen.smalley.work@gmail.com>,
zohar@linux.ibm.com, casey@schaufler-ca.com
Cc: tyhicks@linux.microsoft.com, tusharsu@linux.microsoft.com,
sashal@kernel.org, jmorris@namei.org,
linux-integrity@vger.kernel.org, selinux@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org, paul Moore <paul@paul-moore.com>
Subject: Re: [PATCH 2/2] SELinux: Measure state and hash of policy using IMA
Date: Thu, 13 Aug 2020 10:52:02 -0700 [thread overview]
Message-ID: <7315b7e8-2c53-2555-bc2e-aae42e16aaa2@linux.microsoft.com> (raw)
In-Reply-To: <5f738fd8-fe28-5358-b3d8-b671b45caa7f@gmail.com>
On 8/13/20 10:42 AM, Stephen Smalley wrote:
>> diff --git a/security/selinux/measure.c b/security/selinux/measure.c
>> new file mode 100644
>> index 000000000000..f21b7de4e2ae
>> --- /dev/null
>> +++ b/security/selinux/measure.c
>> @@ -0,0 +1,204 @@
>> +static int selinux_hash_buffer(void *buf, size_t buf_len,
>> + void **buf_hash, int *buf_hash_len)
>> +{
>> + struct crypto_shash *tfm;
>> + struct shash_desc *desc = NULL;
>> + void *digest = NULL;
>> + int desc_size;
>> + int digest_size;
>> + int ret = 0;
>> +
>> + tfm = crypto_alloc_shash("sha256", 0, 0);
>> + if (IS_ERR(tfm))
>> + return PTR_ERR(tfm);
> Can we make the algorithm selectable via kernel parameter and/or writing
> to a new selinuxfs node?
I can add a kernel parameter to select this hash algorithm.
-lakshmi
next prev parent reply other threads:[~2020-08-13 17:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-13 17:07 [PATCH 0/2] SELinux: Measure state and hash of policy using IMA Lakshmi Ramasubramanian
2020-08-13 17:07 ` [PATCH 1/2] IMA: Handle early boot data measurement Lakshmi Ramasubramanian
2020-08-13 17:07 ` [PATCH 2/2] SELinux: Measure state and hash of policy using IMA Lakshmi Ramasubramanian
2020-08-13 17:42 ` Stephen Smalley
2020-08-13 17:52 ` Lakshmi Ramasubramanian [this message]
2020-08-13 17:58 ` Stephen Smalley
2020-08-13 18:03 ` Lakshmi Ramasubramanian
2020-08-13 18:13 ` Stephen Smalley
2020-08-17 21:31 ` Mimi Zohar
2020-08-17 22:00 ` Casey Schaufler
2020-08-17 22:33 ` Lakshmi Ramasubramanian
2020-08-17 23:11 ` Mimi Zohar
2020-08-17 23:20 ` Lakshmi Ramasubramanian
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