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shared/tpm2-util: wrap comments

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2022-10-19 09:30:47 +02:00
parent a3ee0916b1
commit dc1768131a
1 changed files with 7 additions and 6 deletions
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13
src/shared/tpm2-util.c
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@ -1049,7 +1049,8 @@ static int tpm2_make_policy_session(
#if HAVE_OPENSSL
_cleanup_(EVP_PKEY_freep) EVP_PKEY *pk = NULL;
if (pubkey_size > 0) {
/* If a pubkey is specified, load it to validate it, even if the PCR mask for this is actually zero, and we are thus not going to use it. */
/* If a pubkey is specified, load it to validate it, even if the PCR mask for this is
* actually zero, and we are thus not going to use it. */
_cleanup_fclose_ FILE *f = fmemopen((void*) pubkey, pubkey_size, "r");
if (!f)
return log_oom();
@ -1579,11 +1580,11 @@ int tpm2_unseal(const char *device,
return log_error_errno(r, "TPM2 support is not installed.");
/* So here's what we do here: We connect to the TPM2 chip. As we do when sealing we generate a
* "primary" key on the TPM2 chip, with the same parameters as well as a PCR-bound policy
* session. Given we pass the same parameters, this will result in the same "primary" key, and same
* policy hash (the latter of course, only if the PCR values didn't change in between). We unmarshal
* the encrypted key we stored in the LUKS2 JSON token header and upload it into the TPM2, where it
* is decrypted if the seed and the PCR policy were right ("unsealing"). We then download the result,
* "primary" key on the TPM2 chip, with the same parameters as well as a PCR-bound policy session.
* Given we pass the same parameters, this will result in the same "primary" key, and same policy
* hash (the latter of course, only if the PCR values didn't change in between). We unmarshal the
* encrypted key we stored in the LUKS2 JSON token header and upload it into the TPM2, where it is
* decrypted if the seed and the PCR policy were right ("unsealing"). We then download the result,
* and use it to unlock the LUKS2 volume. */
start = now(CLOCK_MONOTONIC);