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This patch is the result of running
run-clang-tidy -fix -header-filter=.* -checks='-*,modernize-use-equals-default' .
Code style changes have been done on top. The result of this change
leads to the following improvements:
1. Binary size reduction.
* For a -DBUILD_CONFIG=mysql_release build, the binary size is reduced by
~400kb.
* A raw -DCMAKE_BUILD_TYPE=Release reduces the binary size by ~1.4kb.
2. Compiler can better understand the intent of the code, thus it leads
to more optimization possibilities. Additionally it enabled detecting
unused variables that had an empty default constructor but not marked
so explicitly.
Particular change required following this patch in sql/opt_range.cc
result_keys, an unused template class Bitmap now correctly issues
unused variable warnings.
Setting Bitmap template class constructor to default allows the compiler
to identify that there are no side-effects when instantiating the class.
Previously the compiler could not issue the warning as it assumed Bitmap
class (being a template) would not be performing a NO-OP for its default
constructor. This prevented the "unused variable warning".
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strncat() and strncpy()) with custom safe_strcat() and safe_strcpy() functions
The MariaDB code base uses strcat() and strcpy() in several
places. These are known to have memory safety issues and their usage is
discouraged. Common security scanners like Flawfinder flags them. In MariaDB we
should start using modern and safer variants on these functions.
This is similar to memory issues fixes in 19af1890b56c6c147c296479bb6a4ad00fa59dbb
and 9de9f105b5cb88249acc39af73d32af337d6fd5f but now replace use of strcat()
and strcpy() with safer options strncat() and strncpy().
However, add '\0' forcefully to make sure the result string is correct since
for these two functions it is not guaranteed what new string will be null-terminated.
Example:
size_t dest_len = sizeof(g->Message);
strncpy(g->Message, "Null json tree", dest_len); strncat(g->Message, ":",
sizeof(g->Message) - strlen(g->Message)); size_t wrote_sz = strlen(g->Message);
size_t cur_len = wrote_sz >= dest_len ? dest_len - 1 : wrote_sz;
g->Message[cur_len] = '\0';
All new code of the whole pull request, including one or several files
that are either new files or modified ones, are contributed under the BSD-new
license. I am contributing on behalf of my employer Amazon Web Services
-- Reviewer and co-author Vicențiu Ciorbaru <vicentiu@mariadb.org>
-- Reviewer additions:
* The initial function implementation was flawed. Replaced with a simpler
and also correct version.
* Simplified code by making use of snprintf instead of chaining strcat.
* Simplified code by removing dynamic string construction in the first
place and using static strings if possible. See connect storage engine
changes.
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In the Develop package because of their use from sql_class.h
which is the main file for THD needed by server plugins.
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move mariadb_capi_rename.h out of private server headers,
because it's included by mysql.h which is not private.
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This patch adds the correct setting of the "--ssl-verify-server-cert"
option in the client-side utilities such as mysqlcheck and mysqlslap,
as well as the correct setting of the "--ssl-crl" option when executing
queries on the slave side, and also add the correct option codes in
the "sslopts-logopts.h" file (in the latter case, incorrect values
are not a problem right now, but may cause subtle test failures in
the future, if the option handling code changes).
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type 'int' in strings/dtoa.c
Fixing a few problems relealed by UBSAN in type_float.test
- multiplication overflow in dtoa.c
- uninitialized Field::geom_type (and Field::srid as well)
- Wrong call-back function types used in combination with SHOW_FUNC.
Changes in the mysql_show_var_func data type definition were not
properly addressed all around the code by the following commits:
b4ff64568c88ab3ce559e7bd39853d9cbf86704a
18feb62feeb833494d003615861b9c78ec008a90
0ee879ff8ac1b80cd9a963015344f5698a81f309
Adding a helper SHOW_FUNC_ENTRY() function and replacing
all mysql_show_var_func declarations using SHOW_FUNC
to SHOW_FUNC_ENTRY, to catch mysql_show_var_func in the future
at compilation time.
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This patch adds the correct setting of the "--tls-version" and
"--ssl-verify-server-cert" options in the client-side utilities
such as mysqltest, mysqlcheck and mysqlslap, as well as the correct
setting of the "--ssl-crl" option when executing queries on the
slave side, and also the correct option codes in the "sslopts-logopts.h"
file (in the latter case, incorrect values are not a problem right
now, but may cause subtle test failures in the future, if the option
handling code changes).
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Prevent wsrep files from being installed if WITH_WSREP=OFF.
Reviewed by Daniel Black
Additionally excluded #include wsrep files and galera* files
along with galera/wsrep tests.
mysql-test/include/have_wsrep.inc remainds as its used by
a few isolated tests.
Co-authored-by: Chris Ross <cross2@cisco.com>
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/usr/ports/pobj/mariadb-10.9.3/mariadb-10.9.3/mysys/my_lock.c:183:7: warning: incompatible function pointer types assigning to 'sig_return' (aka 'void (*)(void)') from 'void (*)(int)' [-Wincompatible-function-pointer-types]
ALARM_INIT;
^~~~~~~~~~
/usr/ports/pobj/mariadb-10.9.3/mariadb-10.9.3/include/my_alarm.h:43:16: note: expanded from macro 'ALARM_INIT'
alarm_signal=signal(SIGALRM,my_set_alarm_variable);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/ports/pobj/mariadb-10.9.3/mariadb-10.9.3/mysys/my_lock.c:189:7: warning: incompatible function pointer types passing 'sig_return' (aka 'void (*)(void)') to parameter of type 'void (*)(int)' [-Wincompatible-function-pointer-types]
ALARM_END;
^~~~~~~~~
/usr/ports/pobj/mariadb-10.9.3/mariadb-10.9.3/include/my_alarm.h:44:41: note: expanded from macro 'ALARM_END'
^~~~~~~~~~~~
/usr/include/sys/signal.h:199:27: note: passing argument to parameter here
void (*signal(int, void (*)(int)))(int);
^
2 warnings generated.
The prototype is the same for all of the *BSD's.
void
(*signal(int sigcatch, void (*func)(int sigraised)))(int);
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with C/C.
The patch introduces mariadb_capi_rename.h which is included into
mysql.h. The hew header contains macro definitions for the names being
renamed. In versions 10.6+(i.e. where sql service exists) the renaming
condition in the mariadb_capi_rename.h should be added with
&& !defined(MYSQL_DYNAMIC_PLUGIN)
and look like
The patch also contains removal of mysql.h from the api check.
Disabling false_duper-6543 test for embedded.
ha_federated.so uses C API. C API functions are being renamed in the server,
but not renamed in embedded, since embedded server library should have proper
C API, as expected by programs using it.
Thus the same ha_federated.so cannot work both for server and embedded
server library.
As all federated tests are already disabled for embedded,
federated isn't supposed to work for embedded anyway, and thus the test
is being disabled.
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(#2289)
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This is a new version of the patch instead of the reverted:
MDEV-28727 ALTER TABLE ALGORITHM=NOCOPY does not work after upgrade
Ignore the difference in key packing flags HA_BINARY_PACK_KEY and HA_PACK_KEY
during ALTER to allow ALGORITHM=INSTANT and ALGORITHM=NOCOPY in more cases.
If for some reasons (e.g. due to a bug fix such as MDEV-20704) these
cumulative (over all segments) flags in KEY::flags are different for
the old and new table inside compare_keys_but_name(), the difference
in HA_BINARY_PACK_KEY and HA_PACK_KEY in KEY::flags is not really important:
MyISAM and Aria can handle such cases well: per-segment flags are stored in
MYI and MAI files anyway and they are read during ha_myisam::open()
ha_maria::open() time. So indexes get opened with correct per-segment
flags that were calculated during the table CREATE time, no matter
what the old (CREATE time) and new (ALTER TIME) per-index compression
flags are, and no matter if they are equal or not.
All other engine ignore key compression flags, so this change
is safe for other engines as well.
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(HY000): Prepared statement needs to be re-prepared
The problem is that if table definition cache (TDC) is full of real tables
which are in tables cache, view definition can not stay there so will be
removed by its own underlying tables.
In situation above old mechanism of detection matching definition in PS
and current version always require reprepare and so prevent executing
the PS.
One work around is to increase TDC, other - improve version check for
views/triggers (which is done here). Now in suspicious cases we check:
- timestamp (microseconds) of the view to be sure that version really
have changed;
- time (microseconds) of creation of a trigger related to time
(microseconds) of statement preparation.
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thd_get_ha_data() can be used without a lock, but only from the
current thd thread, when calling from anoher thread it *must*
be protected by thd->LOCK_thd_data
* fix group commit code to take thd->LOCK_thd_data
* remove innobase_close_connection() from the innodb background thread,
it's not needed after 87775402cd0c and was failing the assert with
current_thd==0
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In commit 28325b08633372cc343dfcbc41fe252020cf6e6e
a compile-time option was introduced to disable the macros
DBUG_ENTER and DBUG_RETURN or DBUG_VOID_RETURN.
The parameter name WITH_DBUG_TRACE would hint that it also
covers DBUG_PRINT statements. Let us do that: WITH_DBUG_TRACE=OFF
shall disable DBUG_PRINT() as well.
A few InnoDB recovery tests used to check that some output from
DBUG_PRINT("ib_log", ...) is present. We can live without those checks.
Reviewed by: Vladislav Vaintroub
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Force using english for error messages (i.e ASCII) to avoid encoding
mixup.
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Making changes to wsrep_mysqld.h causes large parts of server code to
be recompiled. The reason is that wsrep_mysqld.h is included by
sql_class.h, even tough very little of wsrep_mysqld.h is needed in
sql_class.h. This commit introduces a new header file, wsrep_on.h,
which is meant to be included from sql_class.h, and contains only
macros and variable declarations used to determine whether wsrep is
enabled.
Also, header wsrep.h should only contain definitions that are also
used outside of sql/. Therefore, move WSREP_TO_ISOLATION* and
WSREP_SYNC_WAIT macros to wsrep_mysqld.h.
Reviewed-by: Jan Lindström <jan.lindstrom@mariadb.com>
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Summary of changes
- MD_CTX_SIZE is increased
- EVP_CIPHER_CTX_buf_noconst(ctx) does not work anymore, points
to nobody knows where. The assumption made previously was that
(since the function does not seem to be documented)
was that it points to the last partial source block.
Add own partial block buffer for NOPAD encryption instead
- SECLEVEL in CipherString in openssl.cnf
had been downgraded to 0, from 1, to make TLSv1.0 and TLSv1.1 possible
(according to https://github.com/openssl/openssl/blob/openssl-3.0.0/NEWS.md
even though the manual for SSL_CTX_get_security_level claims that it
should not be necessary)
- Workaround Ssl_cipher_list issue, it now returns TLSv1.3 ciphers,
in addition to what was set in --ssl-cipher
- ctx_buf buffer now must be aligned to 16 bytes with openssl(
previously with WolfSSL only), ot crashes will happen
- updated aes-t , to be better debuggable
using function, rather than a huge multiline macro
added test that does "nopad" encryption piece-wise, to test
replacement of EVP_CIPHER_CTX_buf_noconst
part of MDEV-29000
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The purpose of the compress() wrapper my_compress_buffer() was twofold:
silence Valgrind warnings about uninitialized memory access before
zlib 1.2.4, and have PERFORMANCE_SCHEMA instrumentation of some zlib
related memory allocation. Because of PERFORMANCE_SCHEMA, we cannot
trivially replace my_compress_buffer() with compress().
az_open(): Remove a crc32() call. Any CRC of the empty string is 0.
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tv_usec is a (suseconds_t) so we cast to it. Prevents the AIX(gcc-10) warning:
include/my_time.h: In function 'void my_timeval_trunc(timeval*, uint)':
include/my_time.h:249:65: warning: conversion from 'long int' to 'suseconds_t' {aka 'int'} may change value [-Wconversion]
249 | tv->tv_usec-= my_time_fraction_remainder(tv->tv_usec, decimals);
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macOS is: conversion from 'long int' to '__darwin_suseconds_t' {aka 'int'} may change value
On Windows suseconds_t isn't defined so we use the existing
long return type of my_time_fraction_remainder.
Reviewed by Marko Mäkelä
Closes: #2079
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