Messages in this thread | | | Subject | Re: [PATCH 2/2] SELinux: Measure state and hash of policy using IMA | From | Lakshmi Ramasubramanian <> | Date | Thu, 13 Aug 2020 10:52:02 -0700 |
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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
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