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MDEV-11782: Redefine the innodb_encrypt_log format

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Write only one encryption key to the checkpoint page.
Use 4 bytes of nonce. Encrypt more of each redo log block,
only skipping the 4-byte field LOG_BLOCK_HDR_NO which the
initialization vector is derived from.

Issue notes, not warning messages for rewriting the redo log files.

recv_recovery_from_checkpoint_finish(): Do not generate any redo log,
because we must avoid that before rewriting the redo log files, or
otherwise a crash during a redo log rewrite (removing or adding
encryption) may end up making the database unrecoverable.
Instead, do these tasks in innobase_start_or_create_for_mysql().

Issue a firm "Missing MLOG_CHECKPOINT" error message. Remove some
unreachable code and duplicated error messages for log corruption.

LOG_HEADER_FORMAT_ENCRYPTED: A flag for identifying an encrypted redo
log format.

log_group_t::is_encrypted(), log_t::is_encrypted(): Determine
if the redo log is in encrypted format.

recv_find_max_checkpoint(): Interpret LOG_HEADER_FORMAT_ENCRYPTED.

srv_prepare_to_delete_redo_log_files(): Display NOTE messages about
adding or removing encryption. Do not issue warnings for redo log
resizing any more.

innobase_start_or_create_for_mysql(): Rebuild the redo logs also when
the encryption changes.

innodb_log_checksums_func_update(): Always use the CRC-32C checksum
if innodb_encrypt_log. If needed, issue a warning
that innodb_encrypt_log implies innodb_log_checksums.

log_group_write_buf(): Compute the checksum on the encrypted
block contents, so that transmission errors or incomplete blocks can be
detected without decrypting.

Rewrite most of the redo log encryption code. Only remember one
encryption key at a time (but remember up to 5 when upgrading from the
MariaDB 10.1 format.)
This commit is contained in:
Marko Mäkelä
2017-02-10 12:11:42 +02:00
parent 743ac7c2d0
commit 2af28a363c
34 changed files with 749 additions and 1289 deletions
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6
mysql-test/mysql-test-run.pl
View File

@ -4345,10 +4345,7 @@ sub extract_warning_lines ($$) {
qr/error .*connecting to master/,
qr/InnoDB: Error: in ALTER TABLE `test`.`t[12]`/,
qr/InnoDB: Error: table `test`.`t[12]` .*does not exist in the InnoDB internal/,
qr/InnoDB: Warning: Setting innodb_use_sys_malloc/,
qr/InnoDB: Warning: a long semaphore wait:/,
qr/InnoDB: Disabling redo log encryption/,
qr/InnoDB: Redo log crypto: Can't initialize to key version -1u/,
qr/InnoDB: Dumping buffer pool.*/,
qr/InnoDB: Buffer pool.*/,
qr/InnoDB: Warning: Writer thread is waiting this semaphore/,
@ -4422,9 +4419,6 @@ sub extract_warning_lines ($$) {
qr|InnoDB: TABLE to scan your table for corruption|,
qr/InnoDB: See also */,
qr/InnoDB: Cannot open .*ib_buffer_pool.* for reading: No such file or directory*/,
qr/InnoDB: Upgrading redo log:*/,
qr|InnoDB: Starting to delete and rewrite log files.|,
qr/InnoDB: New log files created, LSN=*/,
qr|InnoDB: Creating foreign key constraint system tables.|,
qr/InnoDB: Table .*mysql.*innodb_table_stats.* not found./,
qr/InnoDB: User stopword table .* does not exist./