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MDEV-11759: Encryption code in MariaDB 10.1/10.2 causes

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compatibility problems

Pages that are encrypted contain post encryption checksum on
different location that normal checksum fields. Therefore,
we should before decryption check this checksum to avoid
unencrypting corrupted pages. After decryption we can use
traditional checksum check to detect if page is corrupted
or unencryption was done using incorrect key.

Pages that are page compressed do not contain any checksum,
here we need to fist unencrypt, decompress and finally
use tradional checksum check to detect page corruption
or that we used incorrect key in unencryption.

buf0buf.cc: buf_page_is_corrupted() mofified so that
compressed pages are skipped.

buf0buf.h, buf_block_init(), buf_page_init_low():
removed unnecessary page_encrypted, page_compressed,
stored_checksum, valculated_checksum fields from
buf_page_t

buf_page_get_gen(): use new buf_page_check_corrupt() function
to detect corrupted pages.

buf_page_check_corrupt(): If page was not yet decrypted
check if post encryption checksum still matches.
If page is not anymore encrypted, use buf_page_is_corrupted()
traditional checksum method.

If page is detected as corrupted and it is not encrypted
we print corruption message to error log.
If page is still encrypted or it was encrypted and now
corrupted, we will print message that page is
encrypted to error log.

buf_page_io_complete(): use new buf_page_check_corrupt()
function to detect corrupted pages.

buf_page_decrypt_after_read(): Verify post encryption
checksum before tring to decrypt.

fil0crypt.cc: fil_encrypt_buf() verify post encryption
checksum and ind fil_space_decrypt() return true
if we really decrypted the page.

fil_space_verify_crypt_checksum(): rewrite to use
the method used when calculating post encryption
checksum. We also check if post encryption checksum
matches that traditional checksum check does not
match.

fil0fil.ic: Add missed page type encrypted and page
compressed to fil_get_page_type_name()

Note that this change does not yet fix innochecksum tool,
that will be done in separate MDEV.

Fix test failures caused by buf page corruption injection.
This commit is contained in:
Jan Lindström
2017-02-06 10:47:55 +02:00
parent bc4686f0f4
commit ddf2fac733
36 changed files with 935 additions and 818 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mysql-test/suite/encryption/r/innodb-bad-key-change.result
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@ -2,7 +2,7 @@ call mtr.add_suppression("Plugin 'file_key_management' init function returned er
call mtr.add_suppression("InnoDB: Database page corruption on disk or a failed.*");
call mtr.add_suppression("Plugin 'file_key_management' registration.*failed");
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/r/innodb-bad-key-change2.result
View File

@ -1,5 +1,5 @@
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1 is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/r/innodb-bad-key-change4.result
View File

@ -1,5 +1,5 @@
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1 is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/r/innodb-bad-key-change5.result
View File

@ -1,5 +1,5 @@
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1 is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/r/innodb-bad-key-shutdown.result
View File

@ -1,5 +1,5 @@
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/r/innodb-encryption-disable.result
View File

@ -1,7 +1,7 @@
SET GLOBAL innodb_file_format = `Barracuda`;
SET GLOBAL innodb_file_per_table = ON;
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1 is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/r/innodb-missing-key.result
View File

@ -1,5 +1,5 @@
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
# Start server with keys2.txt

2
mysql-test/suite/encryption/t/innodb-bad-key-change.test
View File

@ -16,7 +16,7 @@ call mtr.add_suppression("Plugin 'file_key_management' init function returned er
call mtr.add_suppression("InnoDB: Database page corruption on disk or a failed.*");
call mtr.add_suppression("Plugin 'file_key_management' registration.*failed");
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/t/innodb-bad-key-change2.test
View File

@ -9,7 +9,7 @@
# MDEV-8750: Server crashes in page_cur_is_after_last on altering table using a wrong encryption key
#
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1 is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/t/innodb-bad-key-change4.test
View File

@ -9,7 +9,7 @@
# MDEV-8768: Server crash at file btr0btr.ic line 122 when checking encrypted table using incorrect keys
#
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1 is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/t/innodb-bad-key-change5.test
View File

@ -9,7 +9,7 @@
# MDEV-8769: Server crash at file btr0btr.ic line 122 when defragmenting encrypted table using incorrect keys
#
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1 is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/t/innodb-bad-key-shutdown.test
View File

@ -3,7 +3,7 @@
#
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/t/innodb-encryption-disable.test
View File

@ -18,7 +18,7 @@ SET GLOBAL innodb_file_per_table = ON;
# MDEV-9559: Server without encryption configs crashes if selecting from an implicitly encrypted table
#
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1 is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");

2
mysql-test/suite/encryption/t/innodb-missing-key.test
View File

@ -10,7 +10,7 @@
# MDEV-11004: Unable to start (Segfault or os error 2) when encryption key missing
#
call mtr.add_suppression("InnoDB: Block in space_id .* in file test/.* encrypted");
call mtr.add_suppression("InnoDB: However key management plugin or used key_id .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: However key management plugin or used key_version .* is not found or used encryption algorithm or method does not match.");
call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
--echo

2
mysql-test/suite/innodb/r/innodb-wl5522-debug-zip.result
View File

@ -1,5 +1,7 @@
call mtr.add_suppression("InnoDB: Page for tablespace ");
call mtr.add_suppression("InnoDB: Invalid FSP_SPACE_FLAGS=0x");
call mtr.add_suppression("InnoDB: Corruption: Block in space_id .* in file .* corrupted");
call mtr.add_suppression("InnoDB: Based on page type .*");
FLUSH TABLES;
SET GLOBAL innodb_file_per_table = 1;
SELECT @@innodb_file_per_table;

3
mysql-test/suite/innodb/r/innodb_bug14147491.result
View File

@ -1,4 +1,6 @@
call mtr.add_suppression("InnoDB: Database page corruption on disk or a failed.*");
call mtr.add_suppression("InnoDB: Corruption: Block in space_id .* in file .* corrupted.");
call mtr.add_suppression("InnoDB: Based on page type .*");
CALL mtr.add_suppression("InnoDB: Error: Unable to read tablespace .* page no .* into the buffer pool after 100 attempts");
CALL mtr.add_suppression("InnoDB: Database page corruption on disk or a failed");
CALL mtr.add_suppression("InnoDB: Space .* file test/t1 read of page .*");
@ -10,6 +12,7 @@ CALL mtr.add_suppression("InnoDB: fix the corruption by dumping, dropping, and r
CALL mtr.add_suppression("InnoDB: the corrupt table. You can use CHECK");
CALL mtr.add_suppression("InnoDB: TABLE to scan your table for corruption.");
CALL mtr.add_suppression("InnoDB: See also .* about forcing recovery.");
flush tables;
# Create and populate the table to be corrupted
CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY KEY, b TEXT) ENGINE=InnoDB;
INSERT INTO t1 (b) VALUES ('corrupt me');

2
mysql-test/suite/innodb/t/innodb-wl5522-debug-zip.test
View File

@ -19,6 +19,8 @@
call mtr.add_suppression("InnoDB: Page for tablespace ");
call mtr.add_suppression("InnoDB: Invalid FSP_SPACE_FLAGS=0x");
call mtr.add_suppression("InnoDB: Corruption: Block in space_id .* in file .* corrupted");
call mtr.add_suppression("InnoDB: Based on page type .*");
FLUSH TABLES;
let MYSQLD_DATADIR =`SELECT @@datadir`;

3
mysql-test/suite/innodb/t/innodb_bug14147491.test
View File

@ -5,6 +5,8 @@
-- source include/not_encrypted.inc
call mtr.add_suppression("InnoDB: Database page corruption on disk or a failed.*");
call mtr.add_suppression("InnoDB: Corruption: Block in space_id .* in file .* corrupted.");
call mtr.add_suppression("InnoDB: Based on page type .*");
# Don't test under valgrind, memory leaks will occur
source include/not_valgrind.inc;
@ -31,6 +33,7 @@ CALL mtr.add_suppression("InnoDB: fix the corruption by dumping, dropping, and r
CALL mtr.add_suppression("InnoDB: the corrupt table. You can use CHECK");
CALL mtr.add_suppression("InnoDB: TABLE to scan your table for corruption.");
CALL mtr.add_suppression("InnoDB: See also .* about forcing recovery.");
flush tables;
--echo # Create and populate the table to be corrupted

400
storage/innobase/buf/buf0buf.cc
View File

@ -68,11 +68,6 @@ Created 11/5/1995 Heikki Tuuri
#include "lzo/lzo1x.h"
#endif
/* Enable this for checksum error messages. */
//#ifdef UNIV_DEBUG
//#define UNIV_DEBUG_LEVEL2 1
//#endif
/*
IMPLEMENTATION OF THE BUFFER POOL
=================================
@ -325,18 +320,6 @@ on the io_type */
/* prototypes for new functions added to ha_innodb.cc */
trx_t* innobase_get_trx();
/********************************************************************//**
Check if page is maybe compressed, encrypted or both when we encounter
corrupted page. Note that we can't be 100% sure if page is corrupted
or decrypt/decompress just failed.
*/
static
ibool
buf_page_check_corrupt(
/*===================*/
buf_page_t* bpage); /*!< in/out: buffer page read from
disk */
/********************************************************************//**
Gets the smallest oldest_modification lsn for any page in the pool. Returns
zero if all modified pages have been flushed to disk.
@ -503,6 +486,7 @@ buf_block_alloc(
/********************************************************************//**
Checks if a page is all zeroes.
@return TRUE if the page is all zeroes */
UNIV_INTERN
bool
buf_page_is_zeroes(
/*===============*/
@ -525,7 +509,7 @@ buf_page_is_zeroes(
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in crc32 checksum format */
UNIV_INLINE
UNIV_INTERN
bool
buf_page_is_checksum_valid_crc32(
const byte* read_buf,
@ -534,13 +518,12 @@ buf_page_is_checksum_valid_crc32(
{
ib_uint32_t crc32 = buf_calc_page_crc32(read_buf);
#ifdef UNIV_DEBUG_LEVEL2
if (!(checksum_field1 == crc32 && checksum_field2 == crc32)) {
ib_logf(IB_LOG_LEVEL_INFO,
"Page checksum crc32 not valid field1 %lu field2 %lu crc32 %lu.",
checksum_field1, checksum_field2, (ulint)crc32);
DBUG_PRINT("buf_checksum",
("Page checksum crc32 not valid field1 %lu field2 %lu crc32 %lu.",
checksum_field1, checksum_field2, (ulint)crc32));
}
#endif
return(checksum_field1 == crc32 && checksum_field2 == crc32);
}
@ -550,7 +533,7 @@ buf_page_is_checksum_valid_crc32(
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in innodb checksum format */
UNIV_INLINE
UNIV_INTERN
bool
buf_page_is_checksum_valid_innodb(
const byte* read_buf,
@ -569,13 +552,11 @@ buf_page_is_checksum_valid_innodb(
if (checksum_field2 != mach_read_from_4(read_buf + FIL_PAGE_LSN)
&& checksum_field2 != buf_calc_page_old_checksum(read_buf)) {
#ifdef UNIV_DEBUG_LEVEL2
ib_logf(IB_LOG_LEVEL_INFO,
"Page checksum innodb not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
DBUG_PRINT("buf_checksum",
("Page checksum innodb not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
checksum_field1, checksum_field2, buf_calc_page_old_checksum(read_buf),
mach_read_from_4(read_buf + FIL_PAGE_LSN)
);
#endif
mach_read_from_4(read_buf + FIL_PAGE_LSN)));
return(false);
}
@ -586,13 +567,11 @@ buf_page_is_checksum_valid_innodb(
if (checksum_field1 != 0
&& checksum_field1 != buf_calc_page_new_checksum(read_buf)) {
#ifdef UNIV_DEBUG_LEVEL2
ib_logf(IB_LOG_LEVEL_INFO,
"Page checksum innodb not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
DBUG_PRINT("buf_checksum",
("Page checksum innodb not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
checksum_field1, checksum_field2, buf_calc_page_new_checksum(read_buf),
mach_read_from_4(read_buf + FIL_PAGE_LSN)
);
#endif
mach_read_from_4(read_buf + FIL_PAGE_LSN)));
return(false);
}
@ -604,22 +583,20 @@ buf_page_is_checksum_valid_innodb(
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in none checksum format */
UNIV_INLINE
UNIV_INTERN
bool
buf_page_is_checksum_valid_none(
const byte* read_buf,
ulint checksum_field1,
ulint checksum_field2)
{
#ifdef UNIV_DEBUG_LEVEL2
if (!(checksum_field1 == checksum_field2 || checksum_field1 == BUF_NO_CHECKSUM_MAGIC)) {
ib_logf(IB_LOG_LEVEL_INFO,
"Page checksum none not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
if (!(checksum_field1 == checksum_field2 && checksum_field1 == BUF_NO_CHECKSUM_MAGIC)) {
DBUG_PRINT("buf_checksum",
("Page checksum none not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
checksum_field1, checksum_field2, BUF_NO_CHECKSUM_MAGIC,
mach_read_from_4(read_buf + FIL_PAGE_LSN)
);
mach_read_from_4(read_buf + FIL_PAGE_LSN)));
}
#endif
return(checksum_field1 == checksum_field2
&& checksum_field1 == BUF_NO_CHECKSUM_MAGIC);
@ -627,16 +604,18 @@ buf_page_is_checksum_valid_none(
/********************************************************************//**
Checks if a page is corrupt.
@return TRUE if corrupted */
@param[in] check_lsn true if LSN should be checked
@param[in] read_buf Page to be checked
@param[in] zip_size compressed size or 0
@param[in] space Pointer to tablespace
@return true if corrupted, false if not */
UNIV_INTERN
ibool
bool
buf_page_is_corrupted(
/*==================*/
bool check_lsn, /*!< in: true if we need to check
and complain about the LSN */
const byte* read_buf, /*!< in: a database page */
ulint zip_size) /*!< in: size of compressed page;
0 for uncompressed pages */
bool check_lsn,
const byte* read_buf,
ulint zip_size,
const fil_space_t* space)
{
ulint checksum_field1;
ulint checksum_field2;
@ -644,26 +623,21 @@ buf_page_is_corrupted(
read_buf + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
ulint page_type = mach_read_from_4(
read_buf + FIL_PAGE_TYPE);
bool no_checksum = (page_type == FIL_PAGE_PAGE_COMPRESSED ||
page_type == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED);
fil_space_crypt_t* crypt_data = fil_space_get_crypt_data(space_id);
/* Page is encrypted if encryption information is found from
tablespace and page contains used key_version. This is true
also for pages first compressed and then encrypted. */
if (crypt_data &&
crypt_data->type != CRYPT_SCHEME_UNENCRYPTED &&
fil_page_is_encrypted(read_buf)) {
no_checksum = true;
/* We can trust page type if page compression is set on tablespace
flags because page compression flag means file must have been
created with 10.1 (later than 5.5 code base). In 10.1 page
compressed tables do not contain post compression checksum and
FIL_PAGE_END_LSN_OLD_CHKSUM field stored. Note that space can
be null if we are in fil_check_first_page() and first page
is not compressed or encrypted. */
if ((page_type == FIL_PAGE_PAGE_COMPRESSED ||
page_type == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED)
&& space && FSP_FLAGS_HAS_PAGE_COMPRESSION(space->flags)) {
return (false);
}
/* Return early if there is no checksum or END_LSN */
if (no_checksum) {
return (FALSE);
}
if (!no_checksum && !zip_size
if (!zip_size
&& memcmp(read_buf + FIL_PAGE_LSN + 4,
read_buf + UNIV_PAGE_SIZE
- FIL_PAGE_END_LSN_OLD_CHKSUM + 4, 4)) {
@ -676,7 +650,7 @@ buf_page_is_corrupted(
mach_read_from_4(read_buf + FIL_PAGE_LSN + 4),
mach_read_from_4(read_buf + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM + 4));
return(TRUE);
return(true);
}
#ifndef UNIV_HOTBACKUP
@ -715,7 +689,7 @@ buf_page_is_corrupted(
/* Check whether the checksum fields have correct values */
if (srv_checksum_algorithm == SRV_CHECKSUM_ALGORITHM_NONE) {
return(FALSE);
return(false);
}
if (zip_size) {
@ -742,14 +716,14 @@ buf_page_is_corrupted(
ib_logf(IB_LOG_LEVEL_INFO,
"Checksum fields zero but page is not empty.");
return(TRUE);
return(true);
}
}
return(FALSE);
return(false);
}
DBUG_EXECUTE_IF("buf_page_is_corrupt_failure", return(TRUE); );
DBUG_EXECUTE_IF("buf_page_is_corrupt_failure", return(true); );
ulint page_no = mach_read_from_4(read_buf + FIL_PAGE_OFFSET);
@ -762,7 +736,7 @@ buf_page_is_corrupted(
if (buf_page_is_checksum_valid_crc32(read_buf,
checksum_field1, checksum_field2)) {
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_none(read_buf,
@ -775,7 +749,7 @@ buf_page_is_corrupted(
space_id, page_no);
}
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_innodb(read_buf,
@ -788,17 +762,17 @@ buf_page_is_corrupted(
space_id, page_no);
}
return(FALSE);
return(false);
}
return(TRUE);
return(true);
case SRV_CHECKSUM_ALGORITHM_INNODB:
case SRV_CHECKSUM_ALGORITHM_STRICT_INNODB:
if (buf_page_is_checksum_valid_innodb(read_buf,
checksum_field1, checksum_field2)) {
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_none(read_buf,
@ -811,7 +785,7 @@ buf_page_is_corrupted(
space_id, page_no);
}
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_crc32(read_buf,
@ -824,16 +798,16 @@ buf_page_is_corrupted(
space_id, page_no);
}
return(FALSE);
return(false);
}
return(TRUE);
return(true);
case SRV_CHECKSUM_ALGORITHM_STRICT_NONE:
if (buf_page_is_checksum_valid_none(read_buf,
checksum_field1, checksum_field2)) {
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_crc32(read_buf,
@ -842,7 +816,7 @@ buf_page_is_corrupted(
curr_algo,
SRV_CHECKSUM_ALGORITHM_CRC32,
space_id, page_no);
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_innodb(read_buf,
@ -851,10 +825,10 @@ buf_page_is_corrupted(
curr_algo,
SRV_CHECKSUM_ALGORITHM_INNODB,
space_id, page_no);
return(FALSE);
return(false);
}
return(TRUE);
return(true);
case SRV_CHECKSUM_ALGORITHM_NONE:
/* should have returned FALSE earlier */
@ -864,7 +838,7 @@ buf_page_is_corrupted(
}
ut_error;
return(FALSE);
return(false);
}
/********************************************************************//**
@ -1133,12 +1107,9 @@ buf_block_init(
block->page.state = BUF_BLOCK_NOT_USED;
block->page.buf_fix_count = 0;
block->page.io_fix = BUF_IO_NONE;
block->page.corrupted = false;
block->page.key_version = 0;
block->page.page_encrypted = false;
block->page.page_compressed = false;
block->page.encrypted = false;
block->page.stored_checksum = BUF_NO_CHECKSUM_MAGIC;
block->page.calculated_checksum = BUF_NO_CHECKSUM_MAGIC;
block->page.real_size = 0;
block->page.write_size = 0;
block->modify_clock = 0;
@ -2981,14 +2952,14 @@ loop:
} else if (retries < BUF_PAGE_READ_MAX_RETRIES) {
++retries;
bool corrupted = true;
bool corrupted = false;
if (bpage) {
corrupted = buf_page_check_corrupt(bpage);
}
/* Do not try again for encrypted pages */
if (!corrupted) {
if (corrupted && bpage->encrypted) {
ib_mutex_t* pmutex = buf_page_get_mutex(bpage);
buf_pool = buf_pool_from_bpage(bpage);
@ -3016,14 +2987,14 @@ loop:
retries = BUF_PAGE_READ_MAX_RETRIES;
);
} else {
bool corrupted = true;
bool corrupted = false;
if (bpage) {
corrupted = buf_page_check_corrupt(bpage);
}
if (corrupted) {
fprintf(stderr, "InnoDB: Error: Unable"
if (corrupted && !bpage->encrypted) {
ib_logf(IB_LOG_LEVEL_ERROR, "Unable"
" to read tablespace %lu page no"
" %lu into the buffer pool after"
" %lu attempts\n"
@ -3797,11 +3768,8 @@ buf_page_init_low(
bpage->oldest_modification = 0;
bpage->write_size = 0;
bpage->key_version = 0;
bpage->stored_checksum = BUF_NO_CHECKSUM_MAGIC;
bpage->calculated_checksum = BUF_NO_CHECKSUM_MAGIC;
bpage->page_encrypted = false;
bpage->page_compressed = false;
bpage->encrypted = false;
bpage->corrupted = false;
bpage->real_size = 0;
bpage->slot = NULL;
@ -4496,72 +4464,69 @@ buf_mark_space_corrupt(
Check if page is maybe compressed, encrypted or both when we encounter
corrupted page. Note that we can't be 100% sure if page is corrupted
or decrypt/decompress just failed.
*/
static
ibool
@param[in,out] bpage Page
@return true if page corrupted, false if not */
UNIV_INTERN
bool
buf_page_check_corrupt(
/*===================*/
buf_page_t* bpage) /*!< in/out: buffer page read from disk */
buf_page_t* bpage)
{
ulint zip_size = buf_page_get_zip_size(bpage);
byte* dst_frame = (zip_size) ? bpage->zip.data :
((buf_block_t*) bpage)->frame;
bool page_compressed = bpage->page_encrypted;
ulint stored_checksum = bpage->stored_checksum;
ulint calculated_checksum = bpage->calculated_checksum;
bool page_compressed_encrypted = bpage->page_compressed;
ulint space_id = mach_read_from_4(
dst_frame + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
fil_space_crypt_t* crypt_data = fil_space_get_crypt_data(space_id);
fil_space_t* space = fil_space_found_by_id(space_id);
bool corrupted = true;
ulint key_version = bpage->key_version;
fil_space_crypt_t* crypt_data = space->crypt_data;
bool still_encrypted = false;
bool corrupted = false;
ulint page_type = mach_read_from_2(dst_frame + FIL_PAGE_TYPE);
if (key_version != 0 || page_compressed_encrypted) {
bpage->encrypted = true;
/* In buf_decrypt_after_read we have either decrypted the page if
page post encryption checksum matches and used key_id is found
from the encryption plugin. If checksum did not match page was
not decrypted and it could be either encrypted and corrupted
or corrupted or good page. If we decrypted, there page could
still be corrupted if used key does not match. */
still_encrypted = (crypt_data &&
crypt_data->type != CRYPT_SCHEME_UNENCRYPTED &&
!bpage->encrypted &&
fil_space_verify_crypt_checksum(dst_frame, zip_size,
space, bpage->offset));
if (!still_encrypted) {
/* If traditional checksums match, we assume that page is
not anymore encrypted. */
corrupted = buf_page_is_corrupted(true, dst_frame, zip_size, space);
if (!corrupted) {
bpage->encrypted = false;
}
}
if (key_version != 0 ||
(crypt_data && crypt_data->type != CRYPT_SCHEME_UNENCRYPTED) ||
page_compressed || page_compressed_encrypted) {
/* Page is really corrupted if post encryption stored
checksum does not match calculated checksum after page was
read. For pages compressed and then encrypted, there is no
checksum. */
corrupted = (!page_compressed_encrypted && stored_checksum != calculated_checksum);
if (corrupted) {
/* Pages that we think are unencrypted but do not match the checksum
checks could be corrupted or encrypted or both. */
if (corrupted && !bpage->encrypted) {
bpage->corrupted = true;
ib_logf(IB_LOG_LEVEL_ERROR,
"%s: Block in space_id %lu in file %s corrupted.",
page_compressed_encrypted ? "Maybe corruption" : "Corruption",
page_type == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED ? "Maybe corruption" : "Corruption",
space_id, space ? space->name : "NULL");
ib_logf(IB_LOG_LEVEL_ERROR,
"Page based on contents %s encrypted.",
(key_version == 0 && page_compressed_encrypted == false) ? "not" : "maybe");
if (stored_checksum != BUF_NO_CHECKSUM_MAGIC || calculated_checksum != BUF_NO_CHECKSUM_MAGIC) {
ib_logf(IB_LOG_LEVEL_ERROR,
"Page stored checksum %lu but calculated checksum %lu.",
stored_checksum, calculated_checksum);
}
ib_logf(IB_LOG_LEVEL_ERROR,
"Reason could be that key_version %lu in page "
"or in crypt_data %p could not be found.",
key_version, crypt_data);
ib_logf(IB_LOG_LEVEL_ERROR,
"Reason could be also that key management plugin is not found or"
" used encryption algorithm or method does not match.");
ib_logf(IB_LOG_LEVEL_ERROR,
"Based on page page compressed %d, compressed and encrypted %d.",
page_compressed, page_compressed_encrypted);
} else {
"Based on page type %s (" ULINTPF ")",
fil_get_page_type_name(page_type), page_type);
} else if (still_encrypted || (bpage->encrypted && corrupted)) {
bpage->encrypted = true;
bpage->corrupted = false;
corrupted = true;
ib_logf(IB_LOG_LEVEL_ERROR,
"Block in space_id %lu in file %s encrypted.",
space_id, space ? space->name : "NULL");
ib_logf(IB_LOG_LEVEL_ERROR,
"However key management plugin or used key_id %lu is not found or"
"However key management plugin or used key_version %u is not found or"
" used encryption algorithm or method does not match.",
key_version);
bpage->key_version);
if (space_id > TRX_SYS_SPACE) {
ib_logf(IB_LOG_LEVEL_ERROR,
"Marking tablespace as missing. You may drop this table or"
" install correct key management plugin and key file.");
@ -4589,6 +4554,8 @@ buf_page_io_complete(
const ibool uncompressed = (buf_page_get_state(bpage)
== BUF_BLOCK_FILE_PAGE);
fil_space_t* space = NULL;
byte* frame = NULL;
bool corrupted = false;
ut_a(buf_page_in_file(bpage));
@ -4604,23 +4571,15 @@ buf_page_io_complete(
if (io_type == BUF_IO_READ) {
ulint read_page_no;
ulint read_space_id;
byte* frame = NULL;
if (!buf_page_decrypt_after_read(bpage)) {
/* encryption error! */
buf_page_decrypt_after_read(bpage);
if (buf_page_get_zip_size(bpage)) {
frame = bpage->zip.data;
} else {
frame = ((buf_block_t*) bpage)->frame;
}
ib_logf(IB_LOG_LEVEL_INFO,
"Page %u in tablespace %u encryption error key_version %u.",
bpage->offset, bpage->space, bpage->key_version);
goto database_corrupted;
}
if (buf_page_get_zip_size(bpage)) {
frame = bpage->zip.data;
buf_pool->n_pend_unzip++;
@ -4680,11 +4639,11 @@ buf_page_io_complete(
bpage->offset);
}
/* From version 3.23.38 up we store the page checksum
to the 4 first bytes of the page end lsn field */
corrupted = buf_page_check_corrupt(bpage);
if (buf_page_is_corrupted(true, frame,
buf_page_get_zip_size(bpage))) {
database_corrupted:
if (corrupted) {
/* Not a real corruption if it was triggered by
error injection */
@ -4696,11 +4655,9 @@ buf_page_io_complete(
return(true);
}
goto page_not_corrupt;
;);
database_corrupted:
bool corrupted = buf_page_check_corrupt(bpage);
);
if (corrupted) {
if (!bpage->encrypted) {
fil_system_enter();
space = fil_space_get_by_id(bpage->space);
fil_system_exit();
@ -4708,15 +4665,14 @@ database_corrupted:
"Database page corruption on disk"
" or a failed");
ib_logf(IB_LOG_LEVEL_ERROR,
"Space %lu file %s read of page %u.",
(ulint)bpage->space,
"Space %u file %s read of page %u.",
bpage->space,
space ? space->name : "NULL",
bpage->offset);
ib_logf(IB_LOG_LEVEL_ERROR,
"You may have to recover"
" from a backup.");
buf_page_print(frame, buf_page_get_zip_size(bpage),
BUF_PAGE_PRINT_NO_CRASH);
@ -4747,10 +4703,7 @@ database_corrupted:
&& buf_mark_space_corrupt(bpage)) {
return(false);
} else {
corrupted = buf_page_check_corrupt(bpage);
ulint key_version = bpage->key_version;
if (corrupted) {
if (!bpage->encrypted) {
ib_logf(IB_LOG_LEVEL_ERROR,
"Ending processing because of a corrupt database page.");
@ -4762,15 +4715,14 @@ database_corrupted:
"However key management plugin or used key_id %lu is not found or"
" used encryption algorithm or method does not match."
" Can't continue opening the table.",
(ulint)bpage->space, key_version);
bpage->space, bpage->key_version);
if (bpage->space > TRX_SYS_SPACE) {
if (corrupted) {
if (bpage->encrypted && bpage->space > TRX_SYS_SPACE) {
buf_mark_space_corrupt(bpage);
}
} else {
ut_error;
}
return(false);
}
}
@ -4785,20 +4737,31 @@ database_corrupted:
recv_recover_page(TRUE, (buf_block_t*) bpage);
}
if (uncompressed && !recv_no_ibuf_operations) {
if (uncompressed && !recv_no_ibuf_operations
&& fil_page_get_type(frame) == FIL_PAGE_INDEX
&& page_is_leaf(frame)) {
buf_block_t* block;
ibool update_ibuf_bitmap;
block = (buf_block_t *) bpage;
update_ibuf_bitmap = TRUE;
if (bpage && bpage->encrypted) {
fprintf(stderr,
"InnoDB: Warning: Table in tablespace %lu encrypted."
"However key management plugin or used key_id %u is not found or"
ib_logf(IB_LOG_LEVEL_WARN,
"Table in tablespace %lu encrypted."
"However key management plugin or used key_version %u is not found or"
" used encryption algorithm or method does not match."
" Can't continue opening the table.\n",
(ulint)bpage->space, bpage->key_version);
} else {
ibuf_merge_or_delete_for_page(
(buf_block_t*) bpage, bpage->space,
block, bpage->space,
bpage->offset, buf_page_get_zip_size(bpage),
TRUE);
update_ibuf_bitmap);
}
}
} else {
/* io_type == BUF_IO_WRITE */
@ -6119,13 +6082,17 @@ buf_pool_reserve_tmp_slot(
/********************************************************************//**
Encrypts a buffer page right before it's flushed to disk
@param[in,out] bpage Page control block
@param[in,out] src_frame Source page
@param[in] space_id Tablespace id
@return either unencrypted source page or decrypted page.
*/
UNIV_INTERN
byte*
buf_page_encrypt_before_write(
/*==========================*/
buf_page_t* bpage, /*!< in/out: buffer page to be flushed */
byte* src_frame, /*!< in: src frame */
ulint space_id) /*!< in: space id */
buf_page_t* bpage,
byte* src_frame,
ulint space_id)
{
fil_space_crypt_t* crypt_data = fil_space_get_crypt_data(space_id);
ulint zip_size = buf_page_get_zip_size(bpage);
@ -6244,11 +6211,13 @@ buf_page_encrypt_before_write(
/********************************************************************//**
Decrypt page after it has been read from disk
@param[in,out] bpage Page control block
@return true if successfull, false if something went wrong
*/
ibool
UNIV_INTERN
bool
buf_page_decrypt_after_read(
/*========================*/
buf_page_t* bpage) /*!< in/out: buffer page read from disk */
buf_page_t* bpage)
{
ulint zip_size = buf_page_get_zip_size(bpage);
ulint size = (zip_size) ? zip_size : UNIV_PAGE_SIZE;
@ -6265,49 +6234,21 @@ buf_page_decrypt_after_read(
dst_frame + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
fil_space_crypt_t* crypt_data = fil_space_get_crypt_data(space_id);
/* Page is encrypted if encryption information is found from
tablespace and page contains used key_version. This is true
also for pages first compressed and then encrypted. */
if (!crypt_data ||
(crypt_data &&
crypt_data->type == CRYPT_SCHEME_UNENCRYPTED &&
key_version != 0)) {
byte* frame = NULL;
if (buf_page_get_zip_size(bpage)) {
frame = bpage->zip.data;
} else {
frame = ((buf_block_t*) bpage)->frame;
}
/* If page is not corrupted at this point, page can't be
encrypted, thus set key_version to 0. If page is corrupted,
we assume at this point that it is encrypted as page
contained key_version != 0. Note that page could still be
really corrupted. This we will find out after decrypt by
checking page checksums. */
if (!buf_page_is_corrupted(false, frame, buf_page_get_zip_size(bpage))) {
if (!crypt_data && key_version != 0) {
key_version = 0;
}
}
/* If page is encrypted read post-encryption checksum */
if (!page_compressed_encrypted && key_version != 0) {
bpage->stored_checksum = mach_read_from_4(dst_frame + + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION + 4);
}
ut_ad(bpage->key_version == 0);
bpage->key_version = key_version;
if (bpage->offset == 0) {
/* File header pages are not encrypted/compressed */
return (TRUE);
return (true);
}
/* Store these for corruption check */
bpage->key_version = key_version;
bpage->page_encrypted = page_compressed_encrypted;
bpage->page_compressed = page_compressed;
if (page_compressed) {
/* the page we read is unencrypted */
/* Find free slot from temporary memory array */
@ -6334,6 +6275,13 @@ buf_page_decrypt_after_read(
buf_tmp_buffer_t* slot = NULL;
if (key_version) {
/* Verify encryption checksum before we even try to
decrypt. */
if (!fil_space_verify_crypt_checksum(dst_frame,
zip_size, NULL, bpage->offset)) {
return (false);
}
/* Find free slot from temporary memory array */
slot = buf_pool_reserve_tmp_slot(buf_pool, page_compressed);
@ -6341,20 +6289,14 @@ buf_page_decrypt_after_read(
fil_page_type_validate(dst_frame);
#endif
/* Calculate checksum before decrypt, this will be
used later to find out if incorrect key was used. */
if (!page_compressed_encrypted) {
bpage->calculated_checksum = fil_crypt_calculate_checksum(zip_size, dst_frame);
}
/* decrypt using crypt_buf to dst_frame */
byte* res = fil_space_decrypt(bpage->space,
slot->crypt_buf,
size,
dst_frame);
dst_frame,
&bpage->encrypted);
if (!res) {
bpage->encrypted = true;
success = false;
}
#ifdef UNIV_DEBUG
@ -6387,7 +6329,5 @@ buf_page_decrypt_after_read(
}
}
bpage->key_version = key_version;
return (success);
}

16
storage/innobase/buf/buf0dblwr.cc
View File

@ -383,10 +383,11 @@ buf_dblwr_init_or_load_pages(
doublewrite = read_buf + TRX_SYS_DOUBLEWRITE;
if (mach_read_from_4(read_buf + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION) != 0) {
bool decrypted = false;
byte* tmp = fil_space_decrypt((ulint)TRX_SYS_SPACE,
read_buf + UNIV_PAGE_SIZE,
UNIV_PAGE_SIZE, /* page size */
read_buf);
read_buf, &decrypted);
doublewrite = tmp + TRX_SYS_DOUBLEWRITE;
}
@ -487,6 +488,7 @@ buf_dblwr_process()
byte* read_buf;
byte* unaligned_read_buf;
recv_dblwr_t& recv_dblwr = recv_sys->dblwr;
fil_space_t* space=NULL;
unaligned_read_buf = static_cast<byte*>(ut_malloc(2 * UNIV_PAGE_SIZE));
@ -514,6 +516,10 @@ buf_dblwr_process()
continue;
}
if (!space) {
space = fil_space_found_by_id(space_id);
}
ulint zip_size = fil_space_get_zip_size(space_id);
ut_ad(!buf_page_is_zeroes(page, zip_size));
@ -548,9 +554,9 @@ buf_dblwr_process()
}
if (fil_space_verify_crypt_checksum(
read_buf, zip_size)
read_buf, zip_size, NULL, page_no)
|| !buf_page_is_corrupted(
true, read_buf, zip_size)) {
true, read_buf, zip_size, space)) {
/* The page is good; there is no need
to consult the doublewrite buffer. */
continue;
@ -573,8 +579,8 @@ buf_dblwr_process()
NULL, page, UNIV_PAGE_SIZE, NULL, true);
}
if (!fil_space_verify_crypt_checksum(page, zip_size)
&& buf_page_is_corrupted(true, page, zip_size)) {
if (!fil_space_verify_crypt_checksum(page, zip_size, NULL, page_no)
&& buf_page_is_corrupted(true, page, zip_size, space)) {
if (!is_all_zero) {
ib_logf(IB_LOG_LEVEL_WARN,
"A doublewrite copy of page "

177
storage/innobase/fil/fil0crypt.cc
View File

@ -625,6 +625,8 @@ fil_encrypt_buf(
// store the post-encryption checksum after the key-version
mach_write_to_4(dst_frame + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION + 4, checksum);
ut_ad(fil_space_verify_crypt_checksum(dst_frame, zip_size, NULL, offset));
srv_stats.pages_encrypted.inc();
return dst_frame;
@ -676,6 +678,7 @@ fil_space_encrypt(
byte* comp_mem = NULL;
byte* uncomp_mem = NULL;
ulint size = (zip_size) ? zip_size : UNIV_PAGE_SIZE;
fil_space_t* tspace = fil_space_found_by_id(space);
if (page_compressed_encrypted) {
comp_mem = (byte *)malloc(UNIV_PAGE_SIZE);
@ -685,7 +688,7 @@ fil_space_encrypt(
src = uncomp_mem;
}
bool corrupted1 = buf_page_is_corrupted(true, src, zip_size);
bool corrupted1 = buf_page_is_corrupted(true, src, zip_size, tspace);
bool ok = fil_space_decrypt(crypt_data, tmp_mem, size, tmp, &err);
/* Need to decompress the page if it was also compressed */
@ -694,7 +697,7 @@ fil_space_encrypt(
fil_decompress_page(tmp_mem, comp_mem, UNIV_PAGE_SIZE, NULL);
}
bool corrupted = buf_page_is_corrupted(true, tmp_mem, zip_size);
bool corrupted = buf_page_is_corrupted(true, tmp_mem, zip_size, tspace);
bool different = memcmp(src, tmp_mem, size);
if (!ok || corrupted || corrupted1 || err != DB_SUCCESS || different) {
@ -858,19 +861,25 @@ fil_space_decrypt(
/******************************************************************
Decrypt a page
@return encrypted page, or original not encrypted page if encryption is
not needed. */
@param[in] space Tablespace id
@param[in] tmp_frame Temporary buffer used for decrypting
@param[in] page_size Page size
@param[in,out] src_frame Page to decrypt
@param[out] decrypted true if page was decrypted
@return decrypted page, or original not encrypted page if decryption is
not needed.*/
UNIV_INTERN
byte*
fil_space_decrypt(
/*==============*/
ulint space, /*!< in: Fil space id */
byte* tmp_frame, /*!< in: temporary buffer */
ulint page_size, /*!< in: page size */
byte* src_frame) /*!< in/out: page buffer */
ulint space,
byte* tmp_frame,
ulint page_size,
byte* src_frame,
bool* decrypted)
{
dberr_t err = DB_SUCCESS;
byte* res = NULL;
*decrypted = false;
bool encrypted = fil_space_decrypt(
fil_space_get_crypt_data(space),
@ -881,6 +890,7 @@ fil_space_decrypt(
if (err == DB_SUCCESS) {
if (encrypted) {
*decrypted = true;
/* Copy the decrypted page back to page buffer, not
really any other options. */
memcpy(src_frame, tmp_frame, page_size);
@ -934,83 +944,114 @@ fil_crypt_calculate_checksum(
}
/*********************************************************************
Verify checksum for a page (iff it's encrypted)
NOTE: currently this function can only be run in single threaded mode
as it modifies srv_checksum_algorithm (temporarily)
Verify that post encryption checksum match calculated checksum.
This function should be called only if tablespace contains crypt_data
metadata (this is strong indication that tablespace is encrypted).
Function also verifies that traditional checksum does not match
calculated checksum as if it does page could be valid unencrypted,
encrypted, or corrupted.
@param[in] page Page to verify
@param[in] zip_size zip size
@param[in] space Tablespace
@param[in] pageno Page no
@return true if page is encrypted AND OK, false otherwise */
UNIV_INTERN
bool
fil_space_verify_crypt_checksum(
/*============================*/
const byte* src_frame, /*!< in: page the verify */
ulint zip_size) /*!< in: compressed size if
row_format compressed */
byte* page,
ulint zip_size,
const fil_space_t* space,
ulint pageno)
{
// key version
uint key_version = mach_read_from_4(
src_frame + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION);
uint key_version = mach_read_from_4(page+ FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION);
/* If page is not encrypted, return false */
if (key_version == 0) {
return false; // unencrypted page
return false;
}
/* "trick" the normal checksum routines by storing the post-encryption
* checksum into the normal checksum field allowing for reuse of
* the normal routines */
/* If no checksum is used, can't continue checking. */
if (srv_checksum_algorithm == SRV_CHECKSUM_ALGORITHM_NONE) {
return(true);
}
// post encryption checksum
ib_uint32_t stored_post_encryption = mach_read_from_4(
src_frame + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION + 4);
/* Read stored post encryption checksum. */
ib_uint32_t checksum = mach_read_from_4(
page + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION + 4);
// save pre encryption checksum for restore in end of this function
ib_uint32_t stored_pre_encryption = mach_read_from_4(
src_frame + FIL_PAGE_SPACE_OR_CHKSUM);
/* Declare empty pages non-corrupted */
if (checksum == 0
&& *reinterpret_cast<const ib_uint64_t*>(page + FIL_PAGE_LSN) == 0) {
return (true);
}
ib_uint32_t checksum_field2 = mach_read_from_4(
src_frame + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM);
/* Compressed and encrypted pages do not have checksum. Assume not
corrupted. */
if (mach_read_from_2(page+FIL_PAGE_TYPE) == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED) {
return (true);
}
/** prepare frame for usage of normal checksum routines */
mach_write_to_4(const_cast<byte*>(src_frame) + FIL_PAGE_SPACE_OR_CHKSUM,
stored_post_encryption);
/* Compressed pages use different checksum method. We first store
the post encryption checksum on checksum location and after function
restore the original. */
if (zip_size) {
ib_uint32_t old = static_cast<ib_uint32_t>(mach_read_from_4(
page + FIL_PAGE_SPACE_OR_CHKSUM));
/* NOTE: this function is (currently) only run when restoring
* dblwr-buffer, server is single threaded so it's safe to modify
* srv_checksum_algorithm */
srv_checksum_algorithm_t save_checksum_algorithm =
(srv_checksum_algorithm_t)srv_checksum_algorithm;
mach_write_to_4(page + FIL_PAGE_SPACE_OR_CHKSUM, checksum);
if (zip_size == 0 &&
(save_checksum_algorithm == SRV_CHECKSUM_ALGORITHM_STRICT_INNODB ||
save_checksum_algorithm == SRV_CHECKSUM_ALGORITHM_INNODB)) {
/* handle ALGORITHM_INNODB specially,
* "downgrade" to ALGORITHM_INNODB and store BUF_NO_CHECKSUM_MAGIC
* checksum_field2 is sort of pointless anyway...
bool valid = page_zip_verify_checksum(page, zip_size);
mach_write_to_4(page + FIL_PAGE_SPACE_OR_CHKSUM, old);
return (valid);
}
/* If stored checksum matches one of the calculated checksums
page is not corrupted. */
ib_uint32_t cchecksum1 = buf_calc_page_crc32(page);
ib_uint32_t cchecksum2 = (ib_uint32_t) buf_calc_page_new_checksum(
page);
bool encrypted = (checksum == cchecksum1 || checksum == cchecksum2
|| checksum == BUF_NO_CHECKSUM_MAGIC);
/* Old InnoDB versions did not initialize
FIL_PAGE_FILE_FLUSH_LSN field so there could be garbage
and above checksum check could produce false positive.
Thus we also check does the traditional stored
checksum fields match the calculated one. Both of these
could naturally produce false positive but then
we just decrypt the page and after that corrupted
pages very probable stay corrupted and valid
pages very probable stay valid.
*/
srv_checksum_algorithm = SRV_CHECKSUM_ALGORITHM_INNODB;
mach_write_to_4(const_cast<byte*>(src_frame) +
UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM,
BUF_NO_CHECKSUM_MAGIC);
ulint checksum1 = mach_read_from_4(
page + FIL_PAGE_SPACE_OR_CHKSUM);
ulint checksum2 = mach_read_from_4(
page + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM);
bool valid = (buf_page_is_checksum_valid_crc32(page,checksum1,checksum2)
|| buf_page_is_checksum_valid_none(page,checksum1,checksum2)
|| buf_page_is_checksum_valid_innodb(page,checksum1, checksum2));
if (encrypted && valid) {
/* If page is encrypted and traditional checksums match,
page could be still encrypted, or not encrypted and valid or
corrupted. */
ib_logf(IB_LOG_LEVEL_ERROR,
" Page %lu in space %s (%lu) maybe corrupted."
" Post encryption checksum %u stored [%lu:%lu] key_version %u",
pageno,
space ? space->name : "N/A",
mach_read_from_4(page + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID),
checksum, checksum1, checksum2, key_version);
encrypted = false;
}
/* verify checksums */
ibool corrupted = buf_page_is_corrupted(false, src_frame, zip_size);
/** restore frame & algorithm */
srv_checksum_algorithm = save_checksum_algorithm;
mach_write_to_4(const_cast<byte*>(src_frame) +
FIL_PAGE_SPACE_OR_CHKSUM,
stored_pre_encryption);
mach_write_to_4(const_cast<byte*>(src_frame) +
UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM,
checksum_field2);
if (!corrupted) {
return true; // page was encrypted and checksum matched
} else {
return false; // page was encrypted but checksum didn't match
}
return(encrypted);
}
/***********************************************************************/

6
storage/innobase/fil/fil0fil.cc
View File

@ -2257,7 +2257,7 @@ fil_check_first_page(const page_t* page, ulint space_id, ulint flags)
}
if (buf_page_is_corrupted(
false, page, fsp_flags_get_zip_size(flags))) {
false, page, fsp_flags_get_zip_size(flags), NULL)) {
return("checksum mismatch");
}
@ -4515,13 +4515,13 @@ fil_user_tablespace_find_space_id(
to UNIV_PAGE_SIZE. */
if (page_size == UNIV_PAGE_SIZE) {
uncompressed_ok = !buf_page_is_corrupted(
false, page, 0);
false, page, 0, NULL);
}
bool compressed_ok = false;
if (page_size <= UNIV_PAGE_SIZE_DEF) {
compressed_ok = !buf_page_is_corrupted(
false, page, page_size);
false, page, page_size, NULL);
}
if (uncompressed_ok || compressed_ok) {

2
storage/innobase/fil/fil0pagecompress.cc
View File

@ -366,7 +366,7 @@ fil_compress_page(
fil_decompress_page(uncomp_page, comp_page, len, NULL);
if(buf_page_is_corrupted(false, uncomp_page, 0)) {
if(buf_page_is_corrupted(false, uncomp_page, 0, space)) {
buf_page_print(uncomp_page, 0, BUF_PAGE_PRINT_NO_CRASH);
ut_error;
}

84
storage/innobase/include/buf0buf.h
View File

@ -1,7 +1,7 @@
/*****************************************************************************
Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2013, 2016, MariaDB Corporation.
Copyright (c) 2013, 2017, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
@ -642,19 +642,69 @@ buf_block_unfix(
#else /* !UNIV_HOTBACKUP */
# define buf_block_modify_clock_inc(block) ((void) 0)
#endif /* !UNIV_HOTBACKUP */
/** Checks if the page is in crc32 checksum format.
@param[in] read_buf database page
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in crc32 checksum format */
bool
buf_page_is_checksum_valid_crc32(
const byte* read_buf,
ulint checksum_field1,
ulint checksum_field2)
MY_ATTRIBUTE((warn_unused_result));
/** Checks if the page is in innodb checksum format.
@param[in] read_buf database page
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in innodb checksum format */
bool
buf_page_is_checksum_valid_innodb(
const byte* read_buf,
ulint checksum_field1,
ulint checksum_field2)
MY_ATTRIBUTE((warn_unused_result));
/** Checks if the page is in none checksum format.
@param[in] read_buf database page
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in none checksum format */
bool
buf_page_is_checksum_valid_none(
const byte* read_buf,
ulint checksum_field1,
ulint checksum_field2)
MY_ATTRIBUTE((warn_unused_result));
/********************************************************************//**
Checks if a page is corrupt.
@return TRUE if corrupted */
UNIV_INTERN
ibool
@param[in] check_lsn true if LSN should be checked
@param[in] read_buf Page to be checked
@param[in] zip_size compressed size or 0
@param[in] space Pointer to tablespace
@return true if corrupted, false if not */
bool
buf_page_is_corrupted(
/*==================*/
bool check_lsn, /*!< in: true if we need to check the
and complain about the LSN */
const byte* read_buf, /*!< in: a database page */
ulint zip_size) /*!< in: size of compressed page;
0 for uncompressed pages */
MY_ATTRIBUTE((nonnull, warn_unused_result));
bool check_lsn,
const byte* read_buf,
ulint zip_size,
const fil_space_t* space)
MY_ATTRIBUTE((warn_unused_result));
/********************************************************************//**
Check if page is maybe compressed, encrypted or both when we encounter
corrupted page. Note that we can't be 100% sure if page is corrupted
or decrypt/decompress just failed.
@param[in] bpage Page
@return true if page corrupted, false if not */
bool
buf_page_check_corrupt(
buf_page_t* bpage) /*!< in/out: buffer page read from disk */
MY_ATTRIBUTE(( warn_unused_result));
/********************************************************************//**
Checks if a page is all zeroes.
@return TRUE if the page is all zeroes */
@ -1490,7 +1540,7 @@ The hook that is called just after a page is read from disk.
The function decrypt disk content into buf_page_t and releases the
temporary buffer that was allocated in buf_page_decrypt_before_read */
UNIV_INTERN
ibool
bool
buf_page_decrypt_after_read(
/*========================*/
buf_page_t* page); /*!< in/out: buffer page read from disk */
@ -1593,14 +1643,9 @@ struct buf_page_t{
operation needed. */
unsigned key_version; /*!< key version for this block */
bool page_encrypted; /*!< page is page encrypted */
bool page_compressed;/*!< page is page compressed */
ulint stored_checksum;/*!< stored page checksum if page
encrypted */
bool encrypted; /*!< page is still encrypted */
ulint calculated_checksum;
/*!< calculated checksum if page
encrypted */
bool corrupted; /*!< page is corrupted */
ulint real_size; /*!< Real size of the page
Normal pages == UNIV_PAGE_SIZE
page compressed pages, payload
@ -1714,6 +1759,7 @@ struct buf_page_t{
0 if the block was never accessed
in the buffer pool. Protected by
block mutex */
ibool is_corrupt;
# if defined UNIV_DEBUG_FILE_ACCESSES || defined UNIV_DEBUG
ibool file_page_was_freed;
/*!< this is set to TRUE when

48
storage/innobase/include/fil0crypt.h
View File

@ -328,7 +328,7 @@ fil_space_check_encryption_read(
/******************************************************************
Decrypt a page
@return true if page is decrypted, false if not. */
@return true if page decrypted, false if not.*/
UNIV_INTERN
bool
fil_space_decrypt(
@ -336,9 +336,10 @@ fil_space_decrypt(
fil_space_crypt_t* crypt_data, /*!< in: crypt data */
byte* tmp_frame, /*!< in: temporary buffer */
ulint page_size, /*!< in: page size */
byte* src_frame, /*!< in:out: page buffer */
dberr_t* err); /*!< in: out: DB_SUCCESS or
byte* src_frame, /*!< in: out: page buffer */
dberr_t* err) /*!< in: out: DB_SUCCESS or
error code */
MY_ATTRIBUTE((warn_unused_result));
/*********************************************************************
Encrypt buffer page
@ -355,31 +356,46 @@ fil_space_encrypt(
ulint size, /*!< in: size of data to encrypt */
byte* dst_frame); /*!< in: where to encrypt to */
/*********************************************************************
Decrypt buffer page
@return decrypted page, or original not encrypted page if decrypt is
/******************************************************************
Decrypt a page
@param[in] space Tablespace id
@param[in] tmp_frame Temporary buffer used for decrypting
@param[in] page_size Page size
@param[in,out] src_frame Page to decrypt
@param[out] decrypted true if page was decrypted
@return decrypted page, or original not encrypted page if decryption is
not needed.*/
UNIV_INTERN
byte*
fil_space_decrypt(
/*==============*/
ulint space, /*!< in: tablespace id */
byte* src_frame, /*!< in: page frame */
ulint page_size, /*!< in: size of data to encrypt */
byte* dst_frame) /*!< in: where to decrypt to */
ulint space,
byte* src_frame,
ulint page_size,
byte* dst_frame,
bool* decrypted)
__attribute__((warn_unused_result));
/*********************************************************************
fil_space_verify_crypt_checksum
NOTE: currently this function can only be run in single threaded mode
as it modifies srv_checksum_algorithm (temporarily)
Verify that post encryption checksum match calculated checksum.
This function should be called only if tablespace contains crypt_data
metadata (this is strong indication that tablespace is encrypted).
Function also verifies that traditional checksum does not match
calculated checksum as if it does page could be valid unencrypted,
encrypted, or corrupted.
@param[in] page Page to verify
@param[in] zip_size zip size
@param[in] space Tablespace
@param[in] pageno Page no
@return true if page is encrypted AND OK, false otherwise */
UNIV_INTERN
bool
fil_space_verify_crypt_checksum(
/*============================*/
const byte* src_frame,/*!< in: page frame */
ulint zip_size); /*!< in: size of data to encrypt */
byte* page,
ulint zip_size,
const fil_space_t* space,
ulint pageno)
__attribute__((warn_unused_result));
/*********************************************************************
Init threads for key rotation */

10
storage/innobase/include/fil0fil.ic
View File

@ -59,6 +59,8 @@ fil_get_page_type_name(
switch(page_type) {
case FIL_PAGE_PAGE_COMPRESSED:
return (const char*)"PAGE_COMPRESSED";
case FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED:
return (const char*)"PAGE_COMPRESSED_ENCRYPTED";
case FIL_PAGE_INDEX:
return (const char*)"INDEX";
case FIL_PAGE_UNDO_LOG:
@ -87,9 +89,13 @@ fil_get_page_type_name(
return (const char*)"ZBLOB2";
case FIL_PAGE_TYPE_COMPRESSED:
return (const char*)"ORACLE PAGE COMPRESSED";
default:
return (const char*)"PAGE TYPE CORRUPTED";
/* No default to make compiler generate warning if
new page type is added but not handled here. */
}
return (const char*)"PAGE TYPE CORRUPTED";
}
/****************************************************************//**

5
storage/innobase/row/row0import.cc
View File

@ -2033,12 +2033,15 @@ PageConverter::validate(
buf_block_t* block) UNIV_NOTHROW
{
buf_frame_t* page = get_frame(block);
ulint space_id = mach_read_from_4(
page + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
fil_space_t* space = fil_space_found_by_id(space_id);
/* Check that the page number corresponds to the offset in
the file. Flag as corrupt if it doesn't. Disable the check
for LSN in buf_page_is_corrupted() */
if (buf_page_is_corrupted(false, page, get_zip_size())
if (buf_page_is_corrupted(false, page, get_zip_size(), space)
|| (page_get_page_no(page) != offset / m_page_size
&& page_get_page_no(page) != 0)) {

390
storage/xtradb/buf/buf0buf.cc
View File

@ -65,26 +65,9 @@ Created 11/5/1995 Heikki Tuuri
#include "fil0pagecompress.h"
#include "ha_prototypes.h"
/* Enable this for checksum error messages. */
//#ifdef UNIV_DEBUG
//#define UNIV_DEBUG_LEVEL2 1
//#endif
/* prototypes for new functions added to ha_innodb.cc */
trx_t* innobase_get_trx();
/********************************************************************//**
Check if page is maybe compressed, encrypted or both when we encounter
corrupted page. Note that we can't be 100% sure if page is corrupted
or decrypt/decompress just failed.
*/
static
ibool
buf_page_check_corrupt(
/*===================*/
buf_page_t* bpage); /*!< in/out: buffer page read from
disk */
static inline
void
_increment_page_get_statistics(buf_block_t* block, trx_t* trx)
@ -568,6 +551,7 @@ buf_block_alloc(
/********************************************************************//**
Checks if a page is all zeroes.
@return TRUE if the page is all zeroes */
UNIV_INTERN
bool
buf_page_is_zeroes(
/*===============*/
@ -590,7 +574,7 @@ buf_page_is_zeroes(
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in crc32 checksum format */
UNIV_INLINE
UNIV_INTERN
bool
buf_page_is_checksum_valid_crc32(
const byte* read_buf,
@ -599,13 +583,11 @@ buf_page_is_checksum_valid_crc32(
{
ib_uint32_t crc32 = buf_calc_page_crc32(read_buf);
#ifdef UNIV_DEBUG_LEVEL2
if (!(checksum_field1 == crc32 && checksum_field2 == crc32)) {
ib_logf(IB_LOG_LEVEL_INFO,
"Page checksum crc32 not valid field1 %lu field2 %lu crc32 %lu.",
checksum_field1, checksum_field2, (ulint)crc32);
DBUG_PRINT("buf_checksum",
("Page checksum crc32 not valid field1 %lu field2 %lu crc32 %lu.",
checksum_field1, checksum_field2, (ulint)crc32));
}
#endif
return(checksum_field1 == crc32 && checksum_field2 == crc32);
}
@ -615,7 +597,7 @@ buf_page_is_checksum_valid_crc32(
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in innodb checksum format */
UNIV_INLINE
UNIV_INTERN
bool
buf_page_is_checksum_valid_innodb(
const byte* read_buf,
@ -634,13 +616,12 @@ buf_page_is_checksum_valid_innodb(
if (checksum_field2 != mach_read_from_4(read_buf + FIL_PAGE_LSN)
&& checksum_field2 != buf_calc_page_old_checksum(read_buf)) {
#ifdef UNIV_DEBUG_LEVEL2
ib_logf(IB_LOG_LEVEL_INFO,
"Page checksum innodb not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
DBUG_PRINT("buf_checksum",
("Page checksum innodb not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
checksum_field1, checksum_field2, buf_calc_page_old_checksum(read_buf),
mach_read_from_4(read_buf + FIL_PAGE_LSN)
);
#endif
mach_read_from_4(read_buf + FIL_PAGE_LSN)));
return(false);
}
@ -651,13 +632,12 @@ buf_page_is_checksum_valid_innodb(
if (checksum_field1 != 0
&& checksum_field1 != buf_calc_page_new_checksum(read_buf)) {
#ifdef UNIV_DEBUG_LEVEL2
ib_logf(IB_LOG_LEVEL_INFO,
"Page checksum innodb not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
DBUG_PRINT("buf_checksum",
("Page checksum innodb not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
checksum_field1, checksum_field2, buf_calc_page_new_checksum(read_buf),
mach_read_from_4(read_buf + FIL_PAGE_LSN)
);
#endif
mach_read_from_4(read_buf + FIL_PAGE_LSN)));
return(false);
}
@ -669,22 +649,20 @@ buf_page_is_checksum_valid_innodb(
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in none checksum format */
UNIV_INLINE
UNIV_INTERN
bool
buf_page_is_checksum_valid_none(
const byte* read_buf,
ulint checksum_field1,
ulint checksum_field2)
{
#ifdef UNIV_DEBUG_LEVEL2
if (!(checksum_field1 == checksum_field2 || checksum_field1 == BUF_NO_CHECKSUM_MAGIC)) {
ib_logf(IB_LOG_LEVEL_INFO,
"Page checksum none not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
if (!(checksum_field1 == checksum_field2 && checksum_field1 == BUF_NO_CHECKSUM_MAGIC)) {
DBUG_PRINT("buf_checksum",
("Page checksum none not valid field1 %lu field2 %lu crc32 %lu lsn %lu.",
checksum_field1, checksum_field2, BUF_NO_CHECKSUM_MAGIC,
mach_read_from_4(read_buf + FIL_PAGE_LSN)
);
mach_read_from_4(read_buf + FIL_PAGE_LSN)));
}
#endif
return(checksum_field1 == checksum_field2
&& checksum_field1 == BUF_NO_CHECKSUM_MAGIC);
@ -692,16 +670,18 @@ buf_page_is_checksum_valid_none(
/********************************************************************//**
Checks if a page is corrupt.
@return TRUE if corrupted */
@param[in] check_lsn true if LSN should be checked
@param[in] read_buf Page to be checked
@param[in] zip_size compressed size or 0
@param[in] space Pointer to tablespace
@return true if corrupted, false if not */
UNIV_INTERN
ibool
bool
buf_page_is_corrupted(
/*==================*/
bool check_lsn, /*!< in: true if we need to check
and complain about the LSN */
const byte* read_buf, /*!< in: a database page */
ulint zip_size) /*!< in: size of compressed page;
0 for uncompressed pages */
bool check_lsn,
const byte* read_buf,
ulint zip_size,
const fil_space_t* space)
{
ulint checksum_field1;
ulint checksum_field2;
@ -709,26 +689,21 @@ buf_page_is_corrupted(
read_buf + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
ulint page_type = mach_read_from_4(
read_buf + FIL_PAGE_TYPE);
bool no_checksum = (page_type == FIL_PAGE_PAGE_COMPRESSED ||
page_type == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED);
fil_space_crypt_t* crypt_data = fil_space_get_crypt_data(space_id);
/* Page is encrypted if encryption information is found from
tablespace and page contains used key_version. This is true
also for pages first compressed and then encrypted. */
if (crypt_data &&
crypt_data->type != CRYPT_SCHEME_UNENCRYPTED &&
fil_page_is_encrypted(read_buf)) {
no_checksum = true;
/* We can trust page type if page compression is set on tablespace
flags because page compression flag means file must have been
created with 10.1 (later than 5.5 code base). In 10.1 page
compressed tables do not contain post compression checksum and
FIL_PAGE_END_LSN_OLD_CHKSUM field stored. Note that space can
be null if we are in fil_check_first_page() and first page
is not compressed or encrypted. */
if ((page_type == FIL_PAGE_PAGE_COMPRESSED ||
page_type == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED)
&& space && FSP_FLAGS_HAS_PAGE_COMPRESSION(space->flags)) {
return (false);
}
/* Return early if there is no checksum or END_LSN */
if (no_checksum) {
return (FALSE);
}
if (!no_checksum && !zip_size
if (!zip_size
&& memcmp(read_buf + FIL_PAGE_LSN + 4,
read_buf + UNIV_PAGE_SIZE
- FIL_PAGE_END_LSN_OLD_CHKSUM + 4, 4)) {
@ -780,7 +755,7 @@ buf_page_is_corrupted(
/* Check whether the checksum fields have correct values */
if (srv_checksum_algorithm == SRV_CHECKSUM_ALGORITHM_NONE) {
return(FALSE);
return(false);
}
if (zip_size) {
@ -807,14 +782,14 @@ buf_page_is_corrupted(
ib_logf(IB_LOG_LEVEL_INFO,
"Checksum fields zero but page is not empty.");
return(TRUE);
return(true);
}
}
return(FALSE);
return(false);
}
DBUG_EXECUTE_IF("buf_page_is_corrupt_failure", return(TRUE); );
DBUG_EXECUTE_IF("buf_page_is_corrupt_failure", return(true); );
ulint page_no = mach_read_from_4(read_buf + FIL_PAGE_OFFSET);
@ -827,7 +802,7 @@ buf_page_is_corrupted(
if (buf_page_is_checksum_valid_crc32(read_buf,
checksum_field1, checksum_field2)) {
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_none(read_buf,
@ -840,7 +815,7 @@ buf_page_is_corrupted(
space_id, page_no);
}
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_innodb(read_buf,
@ -853,17 +828,17 @@ buf_page_is_corrupted(
space_id, page_no);
}
return(FALSE);
return(false);
}
return(TRUE);
return(true);
case SRV_CHECKSUM_ALGORITHM_INNODB:
case SRV_CHECKSUM_ALGORITHM_STRICT_INNODB:
if (buf_page_is_checksum_valid_innodb(read_buf,
checksum_field1, checksum_field2)) {
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_none(read_buf,
@ -876,7 +851,7 @@ buf_page_is_corrupted(
space_id, page_no);
}
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_crc32(read_buf,
@ -889,16 +864,16 @@ buf_page_is_corrupted(
space_id, page_no);
}
return(FALSE);
return(false);
}
return(TRUE);
return(true);
case SRV_CHECKSUM_ALGORITHM_STRICT_NONE:
if (buf_page_is_checksum_valid_none(read_buf,
checksum_field1, checksum_field2)) {
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_crc32(read_buf,
@ -907,7 +882,7 @@ buf_page_is_corrupted(
curr_algo,
SRV_CHECKSUM_ALGORITHM_CRC32,
space_id, page_no);
return(FALSE);
return(false);
}
if (buf_page_is_checksum_valid_innodb(read_buf,
@ -916,10 +891,10 @@ buf_page_is_corrupted(
curr_algo,
SRV_CHECKSUM_ALGORITHM_INNODB,
space_id, page_no);
return(FALSE);
return(false);
}
return(TRUE);
return(true);
case SRV_CHECKSUM_ALGORITHM_NONE:
/* should have returned FALSE earlier */
@ -929,7 +904,7 @@ buf_page_is_corrupted(
}
ut_error;
return(FALSE);
return(false);
}
/********************************************************************//**
@ -1198,12 +1173,9 @@ buf_block_init(
block->page.state = BUF_BLOCK_NOT_USED;
block->page.buf_fix_count = 0;
block->page.io_fix = BUF_IO_NONE;
block->page.key_version = 0;
block->page.page_encrypted = false;
block->page.page_compressed = false;
block->page.encrypted = false;
block->page.stored_checksum = BUF_NO_CHECKSUM_MAGIC;
block->page.calculated_checksum = BUF_NO_CHECKSUM_MAGIC;
block->page.corrupted = false;
block->page.key_version = 0;
block->page.real_size = 0;
block->page.write_size = 0;
block->modify_clock = 0;
@ -3023,14 +2995,14 @@ loop:
} else if (retries < BUF_PAGE_READ_MAX_RETRIES) {
++retries;
bool corrupted = true;
bool corrupted = false;
if (bpage) {
corrupted = buf_page_check_corrupt(bpage);
}
/* Do not try again for encrypted pages */
if (!corrupted) {
if (corrupted && bpage->encrypted) {
ib_mutex_t* pmutex = buf_page_get_mutex(bpage);
mutex_enter(&buf_pool->LRU_list_mutex);
mutex_enter(pmutex);
@ -3059,14 +3031,14 @@ loop:
retries = BUF_PAGE_READ_MAX_RETRIES;
);
} else {
bool corrupted = true;
bool corrupted = false;
if (bpage) {
corrupted = buf_page_check_corrupt(bpage);
}
if (corrupted) {
fprintf(stderr, "InnoDB: Error: Unable"
if (corrupted && !bpage->encrypted) {
ib_logf(IB_LOG_LEVEL_ERROR, "Unable"
" to read tablespace %lu page no"
" %lu into the buffer pool after"
" %lu attempts\n"
@ -3877,12 +3849,9 @@ buf_page_init_low(
bpage->newest_modification = 0;
bpage->oldest_modification = 0;
bpage->write_size = 0;
bpage->key_version = 0;
bpage->stored_checksum = BUF_NO_CHECKSUM_MAGIC;
bpage->calculated_checksum = BUF_NO_CHECKSUM_MAGIC;
bpage->page_encrypted = false;
bpage->page_compressed = false;
bpage->encrypted = false;
bpage->corrupted = false;
bpage->key_version = 0;
bpage->real_size = 0;
HASH_INVALIDATE(bpage, hash);
@ -4595,72 +4564,70 @@ buf_mark_space_corrupt(
Check if page is maybe compressed, encrypted or both when we encounter
corrupted page. Note that we can't be 100% sure if page is corrupted
or decrypt/decompress just failed.
*/
static
ibool
@param[in,out] bpage Page
@return true if page corrupted, false if not */
UNIV_INTERN
bool
buf_page_check_corrupt(
/*===================*/
buf_page_t* bpage) /*!< in/out: buffer page read from disk */
buf_page_t* bpage)
{
ulint zip_size = buf_page_get_zip_size(bpage);
byte* dst_frame = (zip_size) ? bpage->zip.data :
((buf_block_t*) bpage)->frame;
bool page_compressed = bpage->page_encrypted;
ulint stored_checksum = bpage->stored_checksum;
ulint calculated_checksum = bpage->calculated_checksum;
bool page_compressed_encrypted = bpage->page_compressed;
ulint space_id = mach_read_from_4(
dst_frame + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
fil_space_crypt_t* crypt_data = fil_space_get_crypt_data(space_id);
fil_space_t* space = fil_space_found_by_id(space_id);
bool corrupted = true;
ulint key_version = bpage->key_version;
fil_space_crypt_t* crypt_data = space->crypt_data;
bool still_encrypted = false;
bool corrupted = false;
ulint page_type = mach_read_from_2(dst_frame + FIL_PAGE_TYPE);
if (key_version != 0 || page_compressed_encrypted) {
bpage->encrypted = true;
/* In buf_decrypt_after_read we have either decrypted the page if
page post encryption checksum matches and used key_id is found
from the encryption plugin. If checksum did not match page was
not decrypted and it could be either encrypted and corrupted
or corrupted or good page. If we decrypted, there page could
still be corrupted if used key does not match. */
still_encrypted = (crypt_data &&
crypt_data->type != CRYPT_SCHEME_UNENCRYPTED &&
!bpage->encrypted &&
fil_space_verify_crypt_checksum(dst_frame, zip_size,
space, bpage->offset));
if (!still_encrypted) {
/* If traditional checksums match, we assume that page is
not anymore encrypted. */
corrupted = buf_page_is_corrupted(true, dst_frame, zip_size, space);
if (!corrupted) {
bpage->encrypted = false;
}
}
if (key_version != 0 ||
(crypt_data && crypt_data->type != CRYPT_SCHEME_UNENCRYPTED) ||
page_compressed || page_compressed_encrypted) {
/* Page is really corrupted if post encryption stored
checksum does not match calculated checksum after page was
read. For pages compressed and then encrypted, there is no
checksum. */
corrupted = (!page_compressed_encrypted && stored_checksum != calculated_checksum);
if (corrupted) {
/* Pages that we think are unencrypted but do not match the checksum
checks could be corrupted or encrypted or both. */
if (corrupted && !bpage->encrypted) {
bpage->corrupted = true;
ib_logf(IB_LOG_LEVEL_ERROR,
"%s: Block in space_id %lu in file %s corrupted.",
page_compressed_encrypted ? "Maybe corruption" : "Corruption",
page_type == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED ? "Maybe corruption" : "Corruption",
space_id, space ? space->name : "NULL");
ib_logf(IB_LOG_LEVEL_ERROR,
"Page based on contents %s encrypted.",
(key_version == 0 && page_compressed_encrypted == false) ? "not" : "maybe");
if (stored_checksum != BUF_NO_CHECKSUM_MAGIC || calculated_checksum != BUF_NO_CHECKSUM_MAGIC) {
ib_logf(IB_LOG_LEVEL_ERROR,
"Page stored checksum %lu but calculated checksum %lu.",
stored_checksum, calculated_checksum);
}
ib_logf(IB_LOG_LEVEL_ERROR,
"Reason could be that key_version %lu in page "
"or in crypt_data %p could not be found.",
key_version, crypt_data);
ib_logf(IB_LOG_LEVEL_ERROR,
"Reason could be also that key management plugin is not found or"
" used encryption algorithm or method does not match.");
ib_logf(IB_LOG_LEVEL_ERROR,
"Based on page page compressed %d, compressed and encrypted %d.",
page_compressed, page_compressed_encrypted);
} else {
"Based on page type %s (" ULINTPF ")",
fil_get_page_type_name(page_type), page_type);
} else if (still_encrypted || (bpage->encrypted && corrupted)) {
bpage->encrypted = true;
bpage->corrupted = false;
corrupted = true;
ib_logf(IB_LOG_LEVEL_ERROR,
"Block in space_id %lu in file %s encrypted.",
space_id, space ? space->name : "NULL");
ib_logf(IB_LOG_LEVEL_ERROR,
"However key management plugin or used key_id %lu is not found or"
"However key management plugin or used key_version %u is not found or"
" used encryption algorithm or method does not match.",
key_version);
bpage->key_version);
if (space_id > TRX_SYS_SPACE) {
ib_logf(IB_LOG_LEVEL_ERROR,
"Marking tablespace as missing. You may drop this table or"
" install correct key management plugin and key file.");
@ -4686,6 +4653,8 @@ buf_page_io_complete(
== BUF_BLOCK_FILE_PAGE);
bool have_LRU_mutex = false;
fil_space_t* space = NULL;
byte* frame = NULL;
bool corrupted = false;
ut_a(buf_page_in_file(bpage));
@ -4701,23 +4670,15 @@ buf_page_io_complete(
if (io_type == BUF_IO_READ) {
ulint read_page_no;
ulint read_space_id;
byte* frame;
if (!buf_page_decrypt_after_read(bpage)) {
/* encryption error! */
buf_page_decrypt_after_read(bpage);
if (buf_page_get_zip_size(bpage)) {
frame = bpage->zip.data;
} else {
frame = ((buf_block_t*) bpage)->frame;
}
ib_logf(IB_LOG_LEVEL_INFO,
"Page %u in tablespace %u encryption error key_version %u.",
bpage->offset, bpage->space, bpage->key_version);
goto database_corrupted;
}
if (buf_page_get_zip_size(bpage)) {
frame = bpage->zip.data;
os_atomic_increment_ulint(&buf_pool->n_pend_unzip, 1);
@ -4732,6 +4693,9 @@ buf_page_io_complete(
"Page %u in tablespace %u zip_decompress failure.",
bpage->offset, bpage->space);
corrupted = true;
bpage->corrupted = true;
goto database_corrupted;
}
os_atomic_decrement_ulint(&buf_pool->n_pend_unzip, 1);
@ -4780,14 +4744,16 @@ buf_page_io_complete(
if (UNIV_LIKELY(!bpage->is_corrupt ||
!srv_pass_corrupt_table)) {
/* From version 3.23.38 up we store the page checksum
to the 4 first bytes of the page end lsn field */
corrupted = buf_page_check_corrupt(bpage);
if (buf_page_is_corrupted(true, frame,
buf_page_get_zip_size(bpage))) {
}
database_corrupted:
if (corrupted) {
/* Not a real corruption if it was triggered by
error injection */
DBUG_EXECUTE_IF("buf_page_is_corrupt_failure",
if (bpage->space > TRX_SYS_SPACE
&& buf_mark_space_corrupt(bpage)) {
@ -4796,12 +4762,9 @@ buf_page_io_complete(
return(true);
}
goto page_not_corrupt;
;);
database_corrupted:
);
bool corrupted = buf_page_check_corrupt(bpage);
if (corrupted) {
if (!bpage->encrypted) {
fil_system_enter();
space = fil_space_get_by_id(bpage->space);
fil_system_exit();
@ -4817,7 +4780,6 @@ database_corrupted:
"You may have to recover"
" from a backup.");
buf_page_print(frame, buf_page_get_zip_size(bpage),
BUF_PAGE_PRINT_NO_CRASH);
@ -4850,11 +4812,13 @@ database_corrupted:
fil_space_set_corrupt(bpage->space);
trx = innobase_get_trx();
if (trx && trx->dict_operation_lock_mode == RW_X_LATCH) {
dict_table_set_corrupt_by_space(bpage->space, FALSE);
} else {
dict_table_set_corrupt_by_space(bpage->space, TRUE);
}
bpage->is_corrupt = TRUE;
}
@ -4866,10 +4830,7 @@ database_corrupted:
&& buf_mark_space_corrupt(bpage)) {
return(false);
} else {
corrupted = buf_page_check_corrupt(bpage);
ulint key_version = bpage->key_version;
if (corrupted) {
if (!bpage->encrypted) {
ib_logf(IB_LOG_LEVEL_ERROR,
"Ending processing because of a corrupt database page.");
@ -4881,20 +4842,18 @@ database_corrupted:
"However key management plugin or used key_id %lu is not found or"
" used encryption algorithm or method does not match."
" Can't continue opening the table.",
(ulint)bpage->space, key_version);
bpage->space, bpage->key_version);
if (bpage->space > TRX_SYS_SPACE) {
if (corrupted) {
if (bpage->encrypted && bpage->space > TRX_SYS_SPACE) {
buf_mark_space_corrupt(bpage);
}
} else {
ut_error;
}
return(false);
}
}
}
} /**/
DBUG_EXECUTE_IF("buf_page_is_corrupt_failure",
page_not_corrupt: bpage = bpage; );
@ -4924,9 +4883,9 @@ database_corrupted:
}
if (bpage && bpage->encrypted) {
fprintf(stderr,
"InnoDB: Warning: Table in tablespace %lu encrypted."
"However key management plugin or used key_id %u is not found or"
ib_logf(IB_LOG_LEVEL_WARN,
"Table in tablespace %lu encrypted."
"However key management plugin or used key_version %u is not found or"
" used encryption algorithm or method does not match."
" Can't continue opening the table.\n",
(ulint)bpage->space, bpage->key_version);
@ -6301,13 +6260,16 @@ buf_pool_reserve_tmp_slot(
/********************************************************************//**
Encrypts a buffer page right before it's flushed to disk
@param[in,out] bpage Page control block
@param[in,out] src_frame Source page
@param[in] space_id Tablespace id
@return either unencrypted source page or decrypted page.
*/
byte*
buf_page_encrypt_before_write(
/*==========================*/
buf_page_t* bpage, /*!< in/out: buffer page to be flushed */
byte* src_frame, /*!< in: src frame */
ulint space_id) /*!< in: space id */
buf_page_t* bpage,
byte* src_frame,
ulint space_id)
{
fil_space_crypt_t* crypt_data = fil_space_get_crypt_data(space_id);
ulint zip_size = buf_page_get_zip_size(bpage);
@ -6426,11 +6388,13 @@ buf_page_encrypt_before_write(
/********************************************************************//**
Decrypt page after it has been read from disk
@param[in,out] bpage Page control block
@return true if successfull, false if something went wrong
*/
ibool
UNIV_INTERN
bool
buf_page_decrypt_after_read(
/*========================*/
buf_page_t* bpage) /*!< in/out: buffer page read from disk */
buf_page_t* bpage)
{
ulint zip_size = buf_page_get_zip_size(bpage);
ulint size = (zip_size) ? zip_size : UNIV_PAGE_SIZE;
@ -6450,46 +6414,17 @@ buf_page_decrypt_after_read(
/* Page is encrypted if encryption information is found from
tablespace and page contains used key_version. This is true
also for pages first compressed and then encrypted. */
if (!crypt_data ||
(crypt_data &&
crypt_data->type == CRYPT_SCHEME_UNENCRYPTED &&
key_version != 0)) {
byte* frame = NULL;
if (buf_page_get_zip_size(bpage)) {
frame = bpage->zip.data;
} else {
frame = ((buf_block_t*) bpage)->frame;
}
/* If page is not corrupted at this point, page can't be
encrypted, thus set key_version to 0. If page is corrupted,
we assume at this point that it is encrypted as page
contained key_version != 0. Note that page could still be
really corrupted. This we will find out after decrypt by
checking page checksums. */
if (!buf_page_is_corrupted(false, frame, buf_page_get_zip_size(bpage))) {
if (!crypt_data && key_version != 0) {
key_version = 0;
}
}
/* If page is encrypted read post-encryption checksum */
if (!page_compressed_encrypted && key_version != 0) {
bpage->stored_checksum = mach_read_from_4(dst_frame + + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION + 4);
}
ut_ad(bpage->key_version == 0);
bpage->key_version = key_version;
if (bpage->offset == 0) {
/* File header pages are not encrypted/compressed */
return (TRUE);
return (true);
}
/* Store these for corruption check */
bpage->key_version = key_version;
bpage->page_encrypted = page_compressed_encrypted;
bpage->page_compressed = page_compressed;
if (page_compressed) {
/* the page we read is unencrypted */
/* Find free slot from temporary memory array */
@ -6516,6 +6451,13 @@ buf_page_decrypt_after_read(
buf_tmp_buffer_t* slot = NULL;
if (key_version) {
/* Verify encryption checksum before we even try to
decrypt. */
if (!fil_space_verify_crypt_checksum(dst_frame,
zip_size, NULL, bpage->offset)) {
return (false);
}
/* Find free slot from temporary memory array */
slot = buf_pool_reserve_tmp_slot(buf_pool, page_compressed);
@ -6523,20 +6465,14 @@ buf_page_decrypt_after_read(
fil_page_type_validate(dst_frame);
#endif
/* Calculate checksum before decrypt, this will be
used later to find out if incorrect key was used. */
if (!page_compressed_encrypted) {
bpage->calculated_checksum = fil_crypt_calculate_checksum(zip_size, dst_frame);
}
/* decrypt using crypt_buf to dst_frame */
byte* res = fil_space_decrypt(bpage->space,
slot->crypt_buf,
size,
dst_frame);
dst_frame,
&bpage->encrypted);
if (!res) {
bpage->encrypted = true;
success = false;
}
#ifdef UNIV_DEBUG
@ -6569,7 +6505,5 @@ buf_page_decrypt_after_read(
}
}
bpage->key_version = key_version;
return (success);
}

16
storage/xtradb/buf/buf0dblwr.cc
View File

@ -383,10 +383,11 @@ buf_dblwr_init_or_load_pages(
doublewrite = read_buf + TRX_SYS_DOUBLEWRITE;
if (mach_read_from_4(read_buf + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION) != 0) {
bool decrypted = false;
byte* tmp = fil_space_decrypt((ulint)TRX_SYS_SPACE,
read_buf + UNIV_PAGE_SIZE,
UNIV_PAGE_SIZE, /* page size */
read_buf);
read_buf, &decrypted);
doublewrite = tmp + TRX_SYS_DOUBLEWRITE;
}
@ -487,6 +488,7 @@ buf_dblwr_process()
byte* read_buf;
byte* unaligned_read_buf;
recv_dblwr_t& recv_dblwr = recv_sys->dblwr;
fil_space_t* space=NULL;
unaligned_read_buf = static_cast<byte*>(ut_malloc(2 * UNIV_PAGE_SIZE));
@ -514,6 +516,10 @@ buf_dblwr_process()
continue;
}
if (!space) {
space = fil_space_found_by_id(space_id);
}
ulint zip_size = fil_space_get_zip_size(space_id);
ut_ad(!buf_page_is_zeroes(page, zip_size));
@ -548,9 +554,9 @@ buf_dblwr_process()
}
if (fil_space_verify_crypt_checksum(
read_buf, zip_size)
read_buf, zip_size, NULL, page_no)
|| !buf_page_is_corrupted(
true, read_buf, zip_size)) {
true, read_buf, zip_size, space)) {
/* The page is good; there is no need
to consult the doublewrite buffer. */
continue;
@ -573,8 +579,8 @@ buf_dblwr_process()
NULL, page, UNIV_PAGE_SIZE, NULL, true);
}
if (!fil_space_verify_crypt_checksum(page, zip_size)
&& buf_page_is_corrupted(true, page, zip_size)) {
if (!fil_space_verify_crypt_checksum(page, zip_size, NULL, page_no)
&& buf_page_is_corrupted(true, page, zip_size, space)) {
if (!is_all_zero) {
ib_logf(IB_LOG_LEVEL_WARN,
"A doublewrite copy of page "

177
storage/xtradb/fil/fil0crypt.cc
View File

@ -625,6 +625,8 @@ fil_encrypt_buf(
// store the post-encryption checksum after the key-version
mach_write_to_4(dst_frame + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION + 4, checksum);
ut_ad(fil_space_verify_crypt_checksum(dst_frame, zip_size, NULL, offset));
srv_stats.pages_encrypted.inc();
return dst_frame;
@ -676,6 +678,7 @@ fil_space_encrypt(
byte* comp_mem = NULL;
byte* uncomp_mem = NULL;
ulint size = (zip_size) ? zip_size : UNIV_PAGE_SIZE;
fil_space_t* tspace = fil_space_found_by_id(space);
if (page_compressed_encrypted) {
comp_mem = (byte *)malloc(UNIV_PAGE_SIZE);
@ -685,7 +688,7 @@ fil_space_encrypt(
src = uncomp_mem;
}
bool corrupted1 = buf_page_is_corrupted(true, src, zip_size);
bool corrupted1 = buf_page_is_corrupted(true, src, zip_size, tspace);
bool ok = fil_space_decrypt(crypt_data, tmp_mem, size, tmp, &err);
/* Need to decompress the page if it was also compressed */
@ -694,7 +697,7 @@ fil_space_encrypt(
fil_decompress_page(tmp_mem, comp_mem, UNIV_PAGE_SIZE, NULL);
}
bool corrupted = buf_page_is_corrupted(true, tmp_mem, zip_size);
bool corrupted = buf_page_is_corrupted(true, tmp_mem, zip_size, tspace);
bool different = memcmp(src, tmp_mem, size);
if (!ok || corrupted || corrupted1 || err != DB_SUCCESS || different) {
@ -858,19 +861,25 @@ fil_space_decrypt(
/******************************************************************
Decrypt a page
@return encrypted page, or original not encrypted page if encryption is
not needed. */
@param[in] space Tablespace id
@param[in] tmp_frame Temporary buffer used for decrypting
@param[in] page_size Page size
@param[in,out] src_frame Page to decrypt
@param[out] decrypted true if page was decrypted
@return decrypted page, or original not encrypted page if decryption is
not needed.*/
UNIV_INTERN
byte*
fil_space_decrypt(
/*==============*/
ulint space, /*!< in: Fil space id */
byte* tmp_frame, /*!< in: temporary buffer */
ulint page_size, /*!< in: page size */
byte* src_frame) /*!< in/out: page buffer */
ulint space,
byte* tmp_frame,
ulint page_size,
byte* src_frame,
bool* decrypted)
{
dberr_t err = DB_SUCCESS;
byte* res = NULL;
*decrypted = false;
bool encrypted = fil_space_decrypt(
fil_space_get_crypt_data(space),
@ -881,6 +890,7 @@ fil_space_decrypt(
if (err == DB_SUCCESS) {
if (encrypted) {
*decrypted = true;
/* Copy the decrypted page back to page buffer, not
really any other options. */
memcpy(src_frame, tmp_frame, page_size);
@ -934,83 +944,114 @@ fil_crypt_calculate_checksum(
}
/*********************************************************************
Verify checksum for a page (iff it's encrypted)
NOTE: currently this function can only be run in single threaded mode
as it modifies srv_checksum_algorithm (temporarily)
Verify that post encryption checksum match calculated checksum.
This function should be called only if tablespace contains crypt_data
metadata (this is strong indication that tablespace is encrypted).
Function also verifies that traditional checksum does not match
calculated checksum as if it does page could be valid unencrypted,
encrypted, or corrupted.
@param[in] page Page to verify
@param[in] zip_size zip size
@param[in] space Tablespace
@param[in] pageno Page no
@return true if page is encrypted AND OK, false otherwise */
UNIV_INTERN
bool
fil_space_verify_crypt_checksum(
/*============================*/
const byte* src_frame, /*!< in: page the verify */
ulint zip_size) /*!< in: compressed size if
row_format compressed */
byte* page,
ulint zip_size,
const fil_space_t* space,
ulint pageno)
{
// key version
uint key_version = mach_read_from_4(
src_frame + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION);
uint key_version = mach_read_from_4(page+ FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION);
/* If page is not encrypted, return false */
if (key_version == 0) {
return false; // unencrypted page
return false;
}
/* "trick" the normal checksum routines by storing the post-encryption
* checksum into the normal checksum field allowing for reuse of
* the normal routines */
/* If no checksum is used, can't continue checking. */
if (srv_checksum_algorithm == SRV_CHECKSUM_ALGORITHM_NONE) {
return(true);
}
// post encryption checksum
ib_uint32_t stored_post_encryption = mach_read_from_4(
src_frame + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION + 4);
/* Read stored post encryption checksum. */
ib_uint32_t checksum = mach_read_from_4(
page + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION + 4);
// save pre encryption checksum for restore in end of this function
ib_uint32_t stored_pre_encryption = mach_read_from_4(
src_frame + FIL_PAGE_SPACE_OR_CHKSUM);
/* Declare empty pages non-corrupted */
if (checksum == 0
&& *reinterpret_cast<const ib_uint64_t*>(page + FIL_PAGE_LSN) == 0) {
return (true);
}
ib_uint32_t checksum_field2 = mach_read_from_4(
src_frame + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM);
/* Compressed and encrypted pages do not have checksum. Assume not
corrupted. */
if (mach_read_from_2(page+FIL_PAGE_TYPE) == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED) {
return (true);
}
/** prepare frame for usage of normal checksum routines */
mach_write_to_4(const_cast<byte*>(src_frame) + FIL_PAGE_SPACE_OR_CHKSUM,
stored_post_encryption);
/* Compressed pages use different checksum method. We first store
the post encryption checksum on checksum location and after function
restore the original. */
if (zip_size) {
ib_uint32_t old = static_cast<ib_uint32_t>(mach_read_from_4(
page + FIL_PAGE_SPACE_OR_CHKSUM));
/* NOTE: this function is (currently) only run when restoring
* dblwr-buffer, server is single threaded so it's safe to modify
* srv_checksum_algorithm */
srv_checksum_algorithm_t save_checksum_algorithm =
(srv_checksum_algorithm_t)srv_checksum_algorithm;
mach_write_to_4(page + FIL_PAGE_SPACE_OR_CHKSUM, checksum);
if (zip_size == 0 &&
(save_checksum_algorithm == SRV_CHECKSUM_ALGORITHM_STRICT_INNODB ||
save_checksum_algorithm == SRV_CHECKSUM_ALGORITHM_INNODB)) {
/* handle ALGORITHM_INNODB specially,
* "downgrade" to ALGORITHM_INNODB and store BUF_NO_CHECKSUM_MAGIC
* checksum_field2 is sort of pointless anyway...
bool valid = page_zip_verify_checksum(page, zip_size);
mach_write_to_4(page + FIL_PAGE_SPACE_OR_CHKSUM, old);
return (valid);
}
/* If stored checksum matches one of the calculated checksums
page is not corrupted. */
ib_uint32_t cchecksum1 = buf_calc_page_crc32(page);
ib_uint32_t cchecksum2 = (ib_uint32_t) buf_calc_page_new_checksum(
page);
bool encrypted = (checksum == cchecksum1 || checksum == cchecksum2
|| checksum == BUF_NO_CHECKSUM_MAGIC);
/* Old InnoDB versions did not initialize
FIL_PAGE_FILE_FLUSH_LSN field so there could be garbage
and above checksum check could produce false positive.
Thus we also check does the traditional stored
checksum fields match the calculated one. Both of these
could naturally produce false positive but then
we just decrypt the page and after that corrupted
pages very probable stay corrupted and valid
pages very probable stay valid.
*/
srv_checksum_algorithm = SRV_CHECKSUM_ALGORITHM_INNODB;
mach_write_to_4(const_cast<byte*>(src_frame) +
UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM,
BUF_NO_CHECKSUM_MAGIC);
ulint checksum1 = mach_read_from_4(
page + FIL_PAGE_SPACE_OR_CHKSUM);
ulint checksum2 = mach_read_from_4(
page + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM);
bool valid = (buf_page_is_checksum_valid_crc32(page,checksum1,checksum2)
|| buf_page_is_checksum_valid_none(page,checksum1,checksum2)
|| buf_page_is_checksum_valid_innodb(page,checksum1, checksum2));
if (encrypted && valid) {
/* If page is encrypted and traditional checksums match,
page could be still encrypted, or not encrypted and valid or
corrupted. */
ib_logf(IB_LOG_LEVEL_ERROR,
" Page %lu in space %s (%lu) maybe corrupted."
" Post encryption checksum %u stored [%lu:%lu] key_version %u",
pageno,
space ? space->name : "N/A",
mach_read_from_4(page + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID),
checksum, checksum1, checksum2, key_version);
encrypted = false;
}
/* verify checksums */
ibool corrupted = buf_page_is_corrupted(false, src_frame, zip_size);
/** restore frame & algorithm */
srv_checksum_algorithm = save_checksum_algorithm;
mach_write_to_4(const_cast<byte*>(src_frame) +
FIL_PAGE_SPACE_OR_CHKSUM,
stored_pre_encryption);
mach_write_to_4(const_cast<byte*>(src_frame) +
UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM,
checksum_field2);
if (!corrupted) {
return true; // page was encrypted and checksum matched
} else {
return false; // page was encrypted but checksum didn't match
}
return(encrypted);
}
/***********************************************************************/

6
storage/xtradb/fil/fil0fil.cc
View File

@ -2309,7 +2309,7 @@ fil_check_first_page(const page_t* page, ulint space_id, ulint flags)
}
if (buf_page_is_corrupted(
false, page, fsp_flags_get_zip_size(flags))) {
false, page, fsp_flags_get_zip_size(flags), NULL)) {
return("checksum mismatch");
}
@ -4547,13 +4547,13 @@ fil_user_tablespace_find_space_id(
to UNIV_PAGE_SIZE. */
if (page_size == UNIV_PAGE_SIZE) {
uncompressed_ok = !buf_page_is_corrupted(
false, page, 0);
false, page, 0, NULL);
}
bool compressed_ok = false;
if (page_size <= UNIV_PAGE_SIZE_DEF) {
compressed_ok = !buf_page_is_corrupted(
false, page, page_size);
false, page, page_size, NULL);
}
if (uncompressed_ok || compressed_ok) {

2
storage/xtradb/fil/fil0pagecompress.cc
View File

@ -366,7 +366,7 @@ fil_compress_page(
fil_decompress_page(uncomp_page, comp_page, len, NULL);
if(buf_page_is_corrupted(false, uncomp_page, 0)) {
if(buf_page_is_corrupted(false, uncomp_page, 0, space)) {
buf_page_print(uncomp_page, 0, BUF_PAGE_PRINT_NO_CRASH);
ut_error;
}

82
storage/xtradb/include/buf0buf.h
View File

@ -1,7 +1,7 @@
/*****************************************************************************
Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2013, 2016, MariaDB Corporation.
Copyright (c) 2013, 2017, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
@ -639,19 +639,68 @@ buf_block_unfix(
#else /* !UNIV_HOTBACKUP */
# define buf_block_modify_clock_inc(block) ((void) 0)
#endif /* !UNIV_HOTBACKUP */
/** Checks if the page is in crc32 checksum format.
@param[in] read_buf database page
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in crc32 checksum format */
bool
buf_page_is_checksum_valid_crc32(
const byte* read_buf,
ulint checksum_field1,
ulint checksum_field2)
MY_ATTRIBUTE((warn_unused_result));
/** Checks if the page is in innodb checksum format.
@param[in] read_buf database page
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in innodb checksum format */
bool
buf_page_is_checksum_valid_innodb(
const byte* read_buf,
ulint checksum_field1,
ulint checksum_field2)
MY_ATTRIBUTE((warn_unused_result));
/** Checks if the page is in none checksum format.
@param[in] read_buf database page
@param[in] checksum_field1 new checksum field
@param[in] checksum_field2 old checksum field
@return true if the page is in none checksum format */
bool
buf_page_is_checksum_valid_none(
const byte* read_buf,
ulint checksum_field1,
ulint checksum_field2)
MY_ATTRIBUTE((warn_unused_result));
/********************************************************************//**
Checks if a page is corrupt.
@return TRUE if corrupted */
UNIV_INTERN
ibool
@param[in] check_lsn true if LSN should be checked
@param[in] read_buf Page to be checked
@param[in] zip_size compressed size or 0
@param[in] space Pointer to tablespace
@return true if corrupted, false if not */
bool
buf_page_is_corrupted(
/*==================*/
bool check_lsn, /*!< in: true if we need to check the
and complain about the LSN */
const byte* read_buf, /*!< in: a database page */
ulint zip_size) /*!< in: size of compressed page;
0 for uncompressed pages */
MY_ATTRIBUTE((nonnull, warn_unused_result));
bool check_lsn,
const byte* read_buf,
ulint zip_size,
const fil_space_t* space)
MY_ATTRIBUTE((warn_unused_result));
/********************************************************************//**
Check if page is maybe compressed, encrypted or both when we encounter
corrupted page. Note that we can't be 100% sure if page is corrupted
or decrypt/decompress just failed.
@param[in] bpage Page
@return true if page corrupted, false if not */
bool
buf_page_check_corrupt(
buf_page_t* bpage) /*!< in/out: buffer page read from disk */
MY_ATTRIBUTE(( warn_unused_result));
/********************************************************************//**
Checks if a page is all zeroes.
@return TRUE if the page is all zeroes */
@ -1524,7 +1573,7 @@ The hook that is called just after a page is read from disk.
The function decrypt disk content into buf_page_t and releases the
temporary buffer that was allocated in buf_page_decrypt_before_read */
UNIV_INTERN
ibool
bool
buf_page_decrypt_after_read(
/*========================*/
buf_page_t* page); /*!< in/out: buffer page read from disk */
@ -1631,14 +1680,8 @@ struct buf_page_t{
operation needed. */
unsigned key_version; /*!< key version for this block */
bool page_encrypted; /*!< page is page encrypted */
bool page_compressed;/*!< page is page compressed */
ulint stored_checksum;/*!< stored page checksum if page
encrypted */
bool encrypted; /*!< page is still encrypted */
ulint calculated_checksum;
/*!< calculated checksum if page
encrypted */
bool corrupted; /*!< page is corrupted */
ulint real_size; /*!< Real size of the page
Normal pages == UNIV_PAGE_SIZE
@ -2318,7 +2361,6 @@ buf_pool_mutex_exit(
/*================*/
buf_pool_t* buf_pool); /*!< in: buffer pool */
#ifndef UNIV_NONINL
#include "buf0buf.ic"
#endif

48
storage/xtradb/include/fil0crypt.h
View File

@ -328,7 +328,7 @@ fil_space_check_encryption_read(
/******************************************************************
Decrypt a page
@return true if page is decrypted, false if not. */
@return true if page decrypted, false if not.*/
UNIV_INTERN
bool
fil_space_decrypt(
@ -336,9 +336,10 @@ fil_space_decrypt(
fil_space_crypt_t* crypt_data, /*!< in: crypt data */
byte* tmp_frame, /*!< in: temporary buffer */
ulint page_size, /*!< in: page size */
byte* src_frame, /*!< in:out: page buffer */
dberr_t* err); /*!< in: out: DB_SUCCESS or
byte* src_frame, /*!< in: out: page buffer */
dberr_t* err) /*!< in: out: DB_SUCCESS or
error code */
MY_ATTRIBUTE((warn_unused_result));
/*********************************************************************
Encrypt buffer page
@ -355,31 +356,46 @@ fil_space_encrypt(
ulint size, /*!< in: size of data to encrypt */
byte* dst_frame); /*!< in: where to encrypt to */
/*********************************************************************
Decrypt buffer page
@return decrypted page, or original not encrypted page if decrypt is
/******************************************************************
Decrypt a page
@param[in] space Tablespace id
@param[in] tmp_frame Temporary buffer used for decrypting
@param[in] page_size Page size
@param[in,out] src_frame Page to decrypt
@param[out] decrypted true if page was decrypted
@return decrypted page, or original not encrypted page if decryption is
not needed.*/
UNIV_INTERN
byte*
fil_space_decrypt(
/*==============*/
ulint space, /*!< in: tablespace id */
byte* src_frame, /*!< in: page frame */
ulint page_size, /*!< in: size of data to encrypt */
byte* dst_frame) /*!< in: where to decrypt to */
ulint space,
byte* src_frame,
ulint page_size,
byte* dst_frame,
bool* decrypted)
__attribute__((warn_unused_result));
/*********************************************************************
fil_space_verify_crypt_checksum
NOTE: currently this function can only be run in single threaded mode
as it modifies srv_checksum_algorithm (temporarily)
Verify that post encryption checksum match calculated checksum.
This function should be called only if tablespace contains crypt_data
metadata (this is strong indication that tablespace is encrypted).
Function also verifies that traditional checksum does not match
calculated checksum as if it does page could be valid unencrypted,
encrypted, or corrupted.
@param[in] page Page to verify
@param[in] zip_size zip size
@param[in] space Tablespace
@param[in] pageno Page no
@return true if page is encrypted AND OK, false otherwise */
UNIV_INTERN
bool
fil_space_verify_crypt_checksum(
/*============================*/
const byte* src_frame,/*!< in: page frame */
ulint zip_size); /*!< in: size of data to encrypt */
byte* page,
ulint zip_size,
const fil_space_t* space,
ulint pageno)
__attribute__((warn_unused_result));
/*********************************************************************
Init threads for key rotation */

10
storage/xtradb/include/fil0fil.ic
View File

@ -59,6 +59,8 @@ fil_get_page_type_name(
switch(page_type) {
case FIL_PAGE_PAGE_COMPRESSED:
return (const char*)"PAGE_COMPRESSED";
case FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED:
return (const char*)"PAGE_COMPRESSED_ENCRYPTED";
case FIL_PAGE_INDEX:
return (const char*)"INDEX";
case FIL_PAGE_UNDO_LOG:
@ -87,9 +89,13 @@ fil_get_page_type_name(
return (const char*)"ZBLOB2";
case FIL_PAGE_TYPE_COMPRESSED:
return (const char*)"ORACLE PAGE COMPRESSED";
default:
return (const char*)"PAGE TYPE CORRUPTED";
/* No default to make compiler generate warning if
new page type is added but not handled here. */
}
return (const char*)"PAGE TYPE CORRUPTED";
}
/****************************************************************//**

6
storage/xtradb/row/row0import.cc
View File

@ -40,6 +40,7 @@ Created 2012-02-08 by Sunny Bains.
#include "row0mysql.h"
#include "srv0start.h"
#include "row0quiesce.h"
#include "buf0buf.h"
#include <vector>
@ -2036,12 +2037,15 @@ PageConverter::validate(
buf_block_t* block) UNIV_NOTHROW
{
buf_frame_t* page = get_frame(block);
ulint space_id = mach_read_from_4(
page + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
fil_space_t* space = fil_space_found_by_id(space_id);
/* Check that the page number corresponds to the offset in
the file. Flag as corrupt if it doesn't. Disable the check
for LSN in buf_page_is_corrupted() */
if (buf_page_is_corrupted(false, page, get_zip_size())
if (buf_page_is_corrupted(false, page, get_zip_size(), space)
|| (page_get_page_no(page) != offset / m_page_size
&& page_get_page_no(page) != 0)) {