keyring_file plugin EOF error during master key writing
Hello Team,
I am debugging keyring_file plugin for mysql-server.
I came across code where its writing master key to keyring storage file.
file name: mysql-server/plugin/keyring/common/keys_container.cc
actual function which is writing key in storage:
// this function actually wrting file to keyring file
bool Keys_container::flush_to_storage(IKey *key, Key_operation operation)
{
ISerialized_object *serialized_object=
keyring_io->get_serializer()->serialize(*keys_hash, key, operation);
if (serialized_object == NULL || keyring_io->flush_to_storage(serialized_object))
{
logger->log(MY_ERROR_LEVEL, "Could not flush keys to keyring");
delete serialized_object;
return TRUE;
}
delete serialized_object;
return FALSE;
}
somehow i managed to edit this key. because by default this key consist of prefix+server_uuid+key_number.
here prefix is INNODBKey
and server_uuid is your server uuid which present in configuration file.
and here key_number every time increment as we do innodb key rotation. initially its value is 1.
so initially you will get your key: INNODBKey-your_server_uuid_which_present_in_conf_file-1
so i decided to edit this and write my own key. my actual implementation is different but i managed to edit this->key_id and its writing successfully in keyring file.
but its not writing EOF value in the file.
Keyring file version:2.0�0 INNODBKey-xxxxxxxx-xxxx-xxxx-xxxx-f44d306286a6-7AES����܆�Sż�>�ugv���v��VԺS�EOFe��q=t/�̪Y�9݀SO�L�`h�;�J���
but correct value should be:
Keyring file version:1.0�. INNODBKey-xxxxxxxx-xxxx-xxe7-a08c-f44d306286a6-1AES��{�v�JQ`
�s拴P~8��j�qEOF
my question here is this:
if i do not edit this key and print this->key_id value then it will print my key value which is: INNODBKey-your_server_uuid_which_present_in_conf_file-1 whit out EOF
and after my change if i print this->key_id then it will print me:
INNODBKey-my_modified_key_id-x . both key value are same in length but question here is why its not able to write EOF at the end of keyring file as soon it write key.
its writing dummy character in keyring file after applying my change.
Thank you very much in advance :)
Thanks,
Regards,
Gaurav
Subject
Views
Written By
Posted
keyring_file plugin EOF error during master key writing
1072
April 08, 2018 01:13PM
584
April 09, 2018 02:42AM
584
April 09, 2018 03:22AM
488
April 09, 2018 03:45AM
534
April 09, 2018 05:31AM
686
April 09, 2018 09:08AM
520
April 10, 2018 02:32AM
510
April 10, 2018 02:51AM
Sorry, you can't reply to this topic. It has been closed.
Content reproduced on this site is the property of the respective copyright holders.
It is not reviewed in advance by Oracle and does not necessarily represent the opinion
of Oracle or any other party.