[pbs-devel] [PATCH proxmox-backup-qemu 1/2] encryption key tracking: use fingerprint

[Fabian Grünbichler]

On November 24, 2020 4:36 pm, Dietmar Maurer wrote:
> Does this improve something? I can't see the purpose of this change.

it allows use to display this remembered fingerprint (e.g., in the 
'invalidating bitmap' message or via the WIP 'query-proxmox-support'.

(also, I'd rather harmonize this now while PVE->PBS is still in beta, 
and not afterwards)

>> @@ -152,7 +154,8 @@ pub(crate) fn check_last_encryption_key(
>>      let digest_guard = PREVIOUS_CRYPT_CONFIG_DIGEST.lock().unwrap();
>>      match (*digest_guard, config)  {
>>          (Some(last_digest), Some(current_config)) => {
>> -            crypt_config_digest(current_config) == last_digest
>> +            current_config.fingerprint().bytes() == &last_digest
>> +                || crypt_config_digest(current_config) == last_digest
>>          },
>>          (None, None) => true,
>>          _ => false,
>> @@ -440,7 +443,13 @@ pub(crate) async fn finish_backup(
>>  
>>      {
>>          let crypt_config_digest = match crypt_config {
>> -            Some(current_config) => Some(crypt_config_digest(current_config)),
>> +            Some(current_config) => {
>> +                let fp = current_config
>> +                    .fingerprint()
>> +                    .bytes()
>> +                    .to_owned();
>> +                Some(fp)
>> +            },
>>              None => None,
>>          };
>>
>