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Code Activity

MDEV-17228 Encrypted temporary tables are not encrypted

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- Introduce a new variable called innodb_encrypt_temporary_tables which is
a boolean variable. It decides whether to encrypt the temporary tablespace.
- Encrypts the temporary tablespace based on full checksum format.
- Introduced a new counter to track encrypted and decrypted temporary
tablespace pages.
- Warnings issued if temporary table creation has conflict value with
innodb_encrypt_temporary_tables
- Added a new test case which reads and writes the pages from/to temporary
tablespace.
This commit is contained in:
Thirunarayanan Balathandayuthapani
2019-06-27 16:23:03 +05:30
parent e4a0dbfb4a
commit 723a4b1d78
19 changed files with 280 additions and 72 deletions
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19
mysql-test/suite/encryption/r/innodb_encrypt_temporary_tables.result Normal file
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SELECT variable_value into @old_encrypted FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_temp_blocks_encrypted';
SELECT variable_value into @old_decrypted FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_temp_blocks_decrypted';
CREATE TEMPORARY TABLE t1(f1 CHAR(200), f2 CHAR(200)) ENGINE=InnoDB;
INSERT INTO t1 (f1,f2) SELECT '', '' FROM seq_1_to_8192;
CREATE TEMPORARY TABLE t2(f1 CHAR(100), f2 CHAR(200), f3 CHAR(200))ENGINE=InnoDB;
INSERT INTO t2 (f1,f2,f3) SELECT '', '', '' FROM seq_1_to_8192;
SELECT COUNT(*) FROM t1;
COUNT(*)
8192
SELECT variable_value > @old_encrypted FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_temp_blocks_encrypted';
variable_value > @old_encrypted
1
SELECT variable_value > @old_decrypted FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_temp_blocks_decrypted';
variable_value > @old_decrypted
1