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sargun/foo.c

Created December 23, 2020 04:50
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foo.c
/*
* Excerpt from trusted_tpm1.c
* https://elixir.bootlin.com/linux/latest/source/security/keys/trusted-keys/trusted_tpm1.c#L387
*/
static int pcrlock(const int pcrnum)
{
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
return tpm_pcr_extend(chip, pcrnum, digests) ? -EINVAL : 0;
}
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