Protocol documentation (http://forge.mysql.com/wiki/MySQL_Internals_ClientServer_Protocol)
says that initial packet sent by client if client wants SSL, consists of client capability flags only
(4 bytes or 2 bytes edependent on protocol versionl).
Some clients happen to send more in the initial SSL packet (C client, Python connector), while others (Java, .NET) follow the docs and send only client capability flags.
A change that broke Java client was a newly introduced check that frst client packet
has 32 or more bytes. This is generally wrong, if client capability flags contains CLIENT_SSL.
Also, fixed the code such that read max client packet size and charset in the first packet prior to SSL handshake. With SSL, clients do not have to send this info, they can only send client flags.
This is now fixed such that max packet size and charset are not read prior to SSL handshake, in case of SSL they are read from the "complete" client authentication packet after SSL initialization.
If init_command was incorrect, we couldn't let users execute
queries, but we couldn't report the issue to the client either
as it does not expect error messages before even sending a
command. Thus, we simply disconnected them without throwing
a clear error.
We now go through the proper sequence once (without executing
any user statements) so we can report back what the problem
is. Only then do we disconnect the user.
As always, root remains unaffected by this as init_command is
(still) not executed for them.
mysql-test/r/init_connect.result:
We now report a proper error if init_command fails.
Expect as much.
mysql-test/t/init_connect.test:
We now report a proper error if init_command fails.
Expect as much.
sql/sql_connect.cc:
If init_command fails, throw an error explaining this to
the user.
The problem is that clients implementing the 4.0 version of the
protocol (that is, mysql-4.0) do not null terminate a string
at the end of the authentication packet. These clients denote
the end of the string with the end of the packet.
Although this goes against the documented (see MySQL Internals
ClientServer Protocol wiki) description of the protocol, these
old clients still need to be supported.
The solution is to support the documented and actual behavior
of the clients. If a client is using the pre-4.1 version of
the protocol, the end of a string in the authentication packet
can either be denoted with a null character or by the end of
the packet. This restores backwards compatibility with old
clients implementing either the documented or actual behavior.
sql/password.c:
The scrambled message, as provided by the user, might not be
properly null terminated. If this is the case, uninitialized
memory past the end of the buffer could theoretically be
accessed. To ensure that this is never the case, copy the
scrambled message over to a null terminated auxiliar buffer.
sql/sql_connect.cc:
Use different execution paths to read strings depending on the
protocol being used. If version 4.0 of the protocol is used,
end of string can be denoted with a NUL character or by the
end of the packet.
If there are not enough bytes left after the current position
of the buffer to satisfy the current string, the string is
considered to be empty. This is required because old clients
do not send the password string field if the password is empty.
In sql_class.cc, 'row_count', of type 'ha_rows', was used as last argument for
ER_TRUNCATED_WRONG_VALUE_FOR_FIELD which is
"Incorrect %-.32s value: '%-.128s' for column '%.192s' at row %ld".
So 'ha_rows' was used as 'long'.
On SPARC32 Solaris builds, 'long' is 4 bytes and 'ha_rows' is 'longlong' i.e. 8 bytes.
So the printf-like code was reading only the first 4 bytes.
Because the CPU is big-endian, 1LL is 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01
so the first four bytes yield 0. So the warning message had "row 0" instead of
"row 1" in test outfile_loaddata.test:
-Warning 1366 Incorrect string value: '\xE1\xE2\xF7' for column 'b' at row 1
+Warning 1366 Incorrect string value: '\xE1\xE2\xF7' for column 'b' at row 0
All error-messaging functions which internally invoke some printf-life function
are potential candidate for such mistakes.
One apparently easy way to catch such mistakes is to use
ATTRIBUTE_FORMAT (from my_attribute.h).
But this works only when call site has both:
a) the format as a string literal
b) the types of arguments.
So:
func(ER(ER_BLAH), 10);
will silently not be checked, because ER(ER_BLAH) is not known at
compile time (it is known at run-time, and depends on the chosen
language).
And
func("%s", a va_list argument);
has the same problem, as the *real* type of arguments is not
known at this site at compile time (it's known in some caller).
Moreover,
func(ER(ER_BLAH));
though possibly correct (if ER(ER_BLAH) has no '%' markers), will not
compile (gcc says "error: format not a string literal and no format
arguments").
Consequences:
1) ATTRIBUTE_FORMAT is here added only to functions which in practice
take "string literal" formats: "my_error_reporter" and "print_admin_msg".
2) it cannot be added to the other functions: my_error(),
push_warning_printf(), Table_check_intact::report_error(),
general_log_print().
To do a one-time check of functions listed in (2), the following
"static code analysis" has been done:
1) replace
my_error(ER_xxx, arguments for substitution in format)
with the equivalent
my_printf_error(ER_xxx,ER(ER_xxx), arguments for substitution in
format),
so that we have ER(ER_xxx) and the arguments *in the same call site*
2) add ATTRIBUTE_FORMAT to push_warning_printf(),
Table_check_intact::report_error(), general_log_print()
3) replace ER(xxx) with the hard-coded English text found in
errmsg.txt (like: ER(ER_UNKNOWN_ERROR) is replaced with
"Unknown error"), so that a call site has the format as string literal
4) this way, ATTRIBUTE_FORMAT can effectively do its job
5) compile, fix errors detected by ATTRIBUTE_FORMAT
6) revert steps 1-2-3.
The present patch has no compiler error when submitted again to the
static code analysis above.
It cannot catch all problems though: see Field::set_warning(), in
which a call to push_warning_printf() has a variable error
(thus, not replacable by a string literal); I checked set_warning() calls
by hand though.
See also WL 5883 for one proposal to avoid such bugs from appearing
again in the future.
The issues fixed in the patch are:
a) mismatch in types (like 'int' passed to '%ld')
b) more arguments passed than specified in the format.
This patch resolves mismatches by changing the type/number of arguments,
not by changing error messages of sql/share/errmsg.txt. The latter would be wrong,
per the following old rule: errmsg.txt must be as stable as possible; no insertions
or deletions of messages, no changes of type or number of printf-like format specifiers,
are allowed, as long as the change impacts a message already released in a GA version.
If this rule is not followed:
- Connectors, which use error message numbers, will be confused (by insertions/deletions
of messages)
- using errmsg.sys of MySQL 5.1.n with mysqld of MySQL 5.1.(n+1)
could produce wrong messages or crash; such usage can easily happen if
installing 5.1.(n+1) while /etc/my.cnf still has --language=/path/to/5.1.n/xxx;
or if copying mysqld from 5.1.(n+1) into a 5.1.n installation.
When fixing b), I have verified that the superfluous arguments were not used in the format
in the first 5.1 GA (5.1.30 'bteam@astra04-20081114162938-z8mctjp6st27uobm').
Had they been used, then passing them today, even if the message doesn't use them
anymore, would have been necessary, as explained above.
include/my_getopt.h:
this function pointer is used only with "string literal" formats, so we can add
ATTRIBUTE_FORMAT.
mysql-test/collections/default.experimental:
test should pass now
sql/derror.cc:
by having a format as string literal, ATTRIBUTE_FORMAT check becomes effective.
sql/events.cc:
Change justified by the following excerpt from sql/share/errmsg.txt:
ER_EVENT_SAME_NAME
eng "Same old and new event name"
ER_EVENT_SET_VAR_ERROR
eng "Error during starting/stopping of the scheduler. Error code %u"
sql/field.cc:
ER_TOO_BIG_SCALE 42000 S1009
eng "Too big scale %d specified for column '%-.192s'. Maximum is %lu."
ER_TOO_BIG_PRECISION 42000 S1009
eng "Too big precision %d specified for column '%-.192s'. Maximum is %lu."
ER_TOO_BIG_DISPLAYWIDTH 42000 S1009
eng "Display width out of range for column '%-.192s' (max = %lu)"
sql/ha_ndbcluster.cc:
ER_OUTOFMEMORY HY001 S1001
eng "Out of memory; restart server and try again (needed %d bytes)"
(sizeof() returns size_t)
sql/ha_ndbcluster_binlog.cc:
Too many arguments for:
ER_GET_ERRMSG
eng "Got error %d '%-.100s' from %s"
Patch by Jonas Oreland.
sql/ha_partition.cc:
print_admin_msg() is used only with a literal as format, so ATTRIBUTE_FORMAT
works.
sql/handler.cc:
ER_OUTOFMEMORY HY001 S1001
eng "Out of memory; restart server and try again (needed %d bytes)"
(sizeof() returns size_t)
sql/item_create.cc:
ER_TOO_BIG_SCALE 42000 S1009
eng "Too big scale %d specified for column '%-.192s'. Maximum is %lu."
ER_TOO_BIG_PRECISION 42000 S1009
eng "Too big precision %d specified for column '%-.192s'. Maximum is %lu."
'c_len' and 'c_dec' are char*, passed as %d !! We don't know their value
(as strtoul() failed), but they are likely big, so we use INT_MAX.
'len' is ulong.
sql/item_func.cc:
ER_WARN_DATA_OUT_OF_RANGE 22003
eng "Out of range value for column '%s' at row %ld"
ER_CANT_FIND_UDF
eng "Can't load function '%-.192s'"
sql/item_strfunc.cc:
ER_TOO_BIG_FOR_UNCOMPRESS
eng "Uncompressed data size too large; the maximum size is %d (probably, length of uncompressed data was corrupted)"
max_allowed_packet is ulong.
sql/mysql_priv.h:
sql_print_message_func is a function _pointer_.
sql/sp_head.cc:
ER_SP_RECURSION_LIMIT
eng "Recursive limit %d (as set by the max_sp_recursion_depth variable) was exceeded for routine %.192s"
max_sp_recursion_depth is ulong
sql/sql_acl.cc:
ER_PASSWORD_NO_MATCH 42000
eng "Can't find any matching row in the user table"
ER_CANT_CREATE_USER_WITH_GRANT 42000
eng "You are not allowed to create a user with GRANT"
sql/sql_base.cc:
ER_NOT_KEYFILE
eng "Incorrect key file for table '%-.200s'; try to repair it"
ER_TOO_MANY_TABLES
eng "Too many tables; MySQL can only use %d tables in a join"
MAX_TABLES is size_t.
sql/sql_binlog.cc:
ER_UNKNOWN_ERROR
eng "Unknown error"
sql/sql_class.cc:
ER_TRUNCATED_WRONG_VALUE_FOR_FIELD
eng "Incorrect %-.32s value: '%-.128s' for column '%.192s' at row %ld"
WARN_DATA_TRUNCATED 01000
eng "Data truncated for column '%s' at row %ld"
sql/sql_connect.cc:
ER_HANDSHAKE_ERROR 08S01
eng "Bad handshake"
ER_BAD_HOST_ERROR 08S01
eng "Can't get hostname for your address"
sql/sql_insert.cc:
ER_WRONG_VALUE_COUNT_ON_ROW 21S01
eng "Column count doesn't match value count at row %ld"
sql/sql_parse.cc:
ER_WARN_HOSTNAME_WONT_WORK
eng "MySQL is started in --skip-name-resolve mode; you must restart it without this switch for this grant to work"
ER_TOO_HIGH_LEVEL_OF_NESTING_FOR_SELECT
eng "Too high level of nesting for select"
ER_UNKNOWN_ERROR
eng "Unknown error"
sql/sql_partition.cc:
ER_OUTOFMEMORY HY001 S1001
eng "Out of memory; restart server and try again (needed %d bytes)"
sql/sql_plugin.cc:
ER_OUTOFMEMORY HY001 S1001
eng "Out of memory; restart server and try again (needed %d bytes)"
sql/sql_prepare.cc:
ER_OUTOFMEMORY HY001 S1001
eng "Out of memory; restart server and try again (needed %d bytes)"
ER_UNKNOWN_STMT_HANDLER
eng "Unknown prepared statement handler (%.*s) given to %s"
length value (for '%.*s') must be 'int', per the doc of printf()
and the code of my_vsnprintf().
sql/sql_show.cc:
ER_OUTOFMEMORY HY001 S1001
eng "Out of memory; restart server and try again (needed %d bytes)"
sql/sql_table.cc:
ER_TOO_BIG_FIELDLENGTH 42000 S1009
eng "Column length too big for column '%-.192s' (max = %lu); use BLOB or TEXT instead"
sql/table.cc:
ER_NOT_FORM_FILE
eng "Incorrect information in file: '%-.200s'"
ER_COL_COUNT_DOESNT_MATCH_PLEASE_UPDATE
eng "Column count of mysql.%s is wrong. Expected %d, found %d. Created with MySQL %d, now running %d. Please use mysql_upgrade to fix this error."
table->s->mysql_version is ulong.
sql/unireg.cc:
ER_TOO_LONG_TABLE_COMMENT
eng "Comment for table '%-.64s' is too long (max = %lu)"
ER_TOO_LONG_FIELD_COMMENT
eng "Comment for field '%-.64s' is too long (max = %lu)"
ER_TOO_BIG_ROWSIZE 42000
eng "Row size too large. The maximum row size for the used table type, not counting BLOBs, is %ld. You have to change some columns to TEXT or BLOBs"
Certain fields in the protcol required a strict formatting. If
off bound values were sent to the server this could under some
circumstances lead to a crash on the Windows platform.
- Fixed some issues with partitions and connection_string, which also fixed lp:716890 "Pre- and post-recovery crash in Aria"
- Fixed wrong assert in Aria
Now need to merge with latest xtradb before pushing
sql/ha_partition.cc:
Ensure that m_ordered_rec_buffer is not freed before close.
sql/mysqld.cc:
Changed to use opt_stack_trace instead of opt_pstack.
Removed references to pstack
sql/partition_element.h:
Ensure that connect_string is initialized
storage/maria/ma_key_recover.c:
Fixed wrong assert
A separate fix for 5.1 (as 5.1 and 5.5 have seriously
differged in the related pieces of the code).
A patch for 5.5 was approved earlier.
Problem: ucs2 was correctly disallowed in "SET NAMES" only,
while mysql_real_connect() and mysql_change_user() still allowed
to use ucs2, which made server crash.
Fix: disallow ucs2 in mysql_real_connect() and mysql_change_user().
@ sql/sql_priv.h
- changing return type for thd_init_client_charset() to bool,
to return errors to the caller
@ sql/sql_var.cc
- using new function
@ sql/sql_connect.cc
- thd_client_charset_init:
in case of unsupported client character set send error and return true;
in case of success return false
- check_connection:
Return error if character set initialization failed
@ sql/sql_parse.cc
- check charset in the very beginnig of the CMD_CHANGE_USER handling code
@ tests/mysql_client_test.c
- adding tests
MySQL 5.1 server
Server used to clip overly long user-names. This was presumably lost
when code was made UTF8-clean.
Now we emulate the behaviour for backward compatibility, but UTF8-ly
correct.
mysql-test/r/connect.result:
Show that user-names that are too long get clipped now.
mysql-test/t/connect.test:
Show that user-names that are too long get clipped now.
sql/sql_connect.cc:
Clip user-name to 16 characters (not bytes).
strings/CHARSET_INFO.txt:
Clarify in docs.
Fall back to use ALTER TABLE for engines that doesn't support REPAIR when doing repair for upgrade.
Nicer output from mysql_upgrade and mysql_check
Updated all arrays that used NAME_LEN to use SAFE_NAME_LEN to ensure that we don't break things accidently as names can now have a #mysql50# prefix.
client/mysql_upgrade.c:
If we are using verbose, also run mysqlcheck in verbose mode.
client/mysqlcheck.c:
Add more information if running in verbose mode
Print 'Needs upgrade' instead of complex error if table needs to be upgraded
Don't write connect information if verbose is not 2 or above
mysql-test/r/drop.result:
Updated test and results as we now support full table names
mysql-test/r/grant.result:
Now you get a correct error message if using #mysql with paths
mysql-test/r/show_check.result:
Update results as table names can temporarly be bigger than NAME_LEN (during upgrade)
mysql-test/r/upgrade.result:
Test upgrade for long table names.
mysql-test/suite/funcs_1/r/is_tables_is.result:
Updated old test result (had note been updated in a while)
mysql-test/t/drop.test:
Updated test and results as we now support full table names
mysql-test/t/grant.test:
Now you get a correct error message if using #mysql with paths
mysql-test/t/upgrade.test:
Test upgrade for long table names.
sql/ha_partition.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/item.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/log_event.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/mysql_priv.h:
Added SAFE_NAME_LEN
sql/rpl_filter.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sp.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sp_head.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_acl.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_base.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_connect.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_parse.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_prepare.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_select.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_show.cc:
NAME_LEN -> SAFE_NAME_LEN
Enlarge table names for SHOW TABLES to also include optional #mysql50#
sql/sql_table.cc:
Fall back to use ALTER TABLE for engines that doesn't support REPAIR when doing repair for upgrade.
sql/sql_trigger.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_udf.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/sql_view.cc:
NAME_LEN -> SAFE_NAME_LEN
sql/table.cc:
Fixed check_table_name() to not count #mysql50# as part of name
If #mysql50# is part of the name, don't allow path characters in name.
NET::skip_big_packet isn't defined for the embedded server,
hide it in such a case.
sql/sql_connect.cc:
Fix for bug #53912: Fails to build from source
- hide net.skip_big_packet for the embedded server,
as it isn't defined there.
Fixed bug in Yassle to get correct error messages in case of errors
Provide better error messages in case of ssl connect failure
Updated out-of-date ssl certificates to fix failing mysql-test-system (certificates now active for 10 years)
Fixed bug in query_cache that could cause asserts and hangs in DEBUG builds.
Fixed bug where one connection did not see changes done by another connection.
configure.in:
Changed version number from RC to stable
extra/yassl/src/yassl_error.cpp:
Fixed bug in Yassle to get correct error messages in case of errors
- 'error' is an enum that hold more error numbers than the enum was defined for
include/violite.h:
Added error output string for sslaccept() and sslconnect() to get reason for connect failure
mysql-test/mysql-test-run.pl:
Write failed test cases if mysql-test-run fails because of too many errors
mysql-test/r/grant.result:
Update results to reflect new certificates
mysql-test/r/openssl_1.result:
Update results to reflect new certificates
mysql-test/std_data/cacert.pem:
Update ssl certificate
mysql-test/std_data/client-cert.pem:
Update ssl certificate
mysql-test/std_data/client-key.pem:
Update ssl certificate
mysql-test/std_data/server-cert.pem:
Update ssl certificate
mysql-test/std_data/server-key.pem:
Update ssl certificate
mysql-test/t/grant.test:
Update test to reflect new certificates
mysql-test/t/openssl_1.test:
Update test to reflect new certificates
mysql-test/t/query_cache_debug.test:
Remove 'big_test' as test is now fast
sql-common/client.c:
Give a better error message if ssl connect fails
sql/net_serv.cc:
Fixed compiler warnings
sql/slave.cc:
Give a better error message in logs if ssl connect fails
sql/sql_cache.cc:
debug_wait_for_kill() now removes the set watch variable after kill signal
This is needed as invalidate_table() may be called twice for one query.
Ensure that net->query_cache_query is reset after query. This fixes assert in
query_cache_end_of_result() if query_cache_query holds results from previous query.
Removed DBUG_ASSERT(0), as this code can be run by query_cache_debug.test
sql/sql_connect.cc:
Give a better error message if ssl connect fails
sql/sql_parse.cc:
Fixed bug where one connection did not see changes done by another connection.
For statements that changes tables, close_thread_tables() MUST be called before
sending OK as a table handler may not make the changes available for other connections
before unlock_tables().
vio/viossl.c:
Give a better error message if ssl connect fails
* Finished Monty and Jani's merge
* Some InnoDB tests still fail (because it's old xtradb code run against
newer testsuite). They are expected to go after mergning with the latest
xtradb.
variable. The problem was that THD::connect_utime could be
used without being initialized when the main thread is used
to handle connections (--thread-handling=no-threads).
sql/mysqld.cc:
Set THD::start_utime even in no-threads handling mode.
sql/sql_class.cc:
Initialize variable.
sql/sql_class.h:
Rename connect_utime to prior_thr_create_utime as to
better reflect it's use intention.
sql/sql_connect.cc:
Check only if a thread was actually created.
This is a backport of code from MySQL 6.0 with cleanups and extensions
The following new options are supported
configure options:
--with-libevent ; Enable use of libevent, which is needed for pool of threads
mysqld options:
--thread-handling=pool-of-threads ; Use a pool of threads to handle queries
--thread-pool-size=# ; Define how many threads should be created to handle all queries
--extra-port=# ; Extra tcp port that uses the old one-thread-per-connection method
--extra-max-connections=# ; Number of connections to accept to 'extra-port'
--test-ignore-wrong-options ; Ignore setting an enum value to a wrong option (for mysql-test-run)
BUILD/SETUP.sh:
Added libevents (and thus pool-of-threads) to max builds
CMakeLists.txt:
Added libevent
Makefile.am:
Added libevents
config/ac-macros/libevent.m4:
Libevent code for configure
config/ac-macros/libevent_configure.m4:
Libevent code for configure
configure.in:
Added libevents
dbug/dbug.c:
Added _db_is_pushed(); Needed for pool-of-threads code
extra/Makefile.am:
Added libevents
extra/libevent:
Libevent initial code
extra/libevent/CMakeLists.txt:
Libevent initial code
extra/libevent/Makefile.am:
Libevent initial code
extra/libevent/README:
Libevent initial code
extra/libevent/WIN32-Code:
Libevent initial code
extra/libevent/WIN32-Code/config.h:
Libevent initial code
extra/libevent/WIN32-Code/misc.c:
Libevent initial code
extra/libevent/WIN32-Code/misc.h:
Libevent initial code
extra/libevent/WIN32-Code/tree.h:
Libevent initial code
extra/libevent/WIN32-Code/win32.c:
Libevent initial code
extra/libevent/buffer.c:
Libevent initial code
extra/libevent/compat:
Libevent initial code
extra/libevent/compat/sys:
Libevent initial code
extra/libevent/compat/sys/_time.h:
Libevent initial code
extra/libevent/compat/sys/queue.h:
Libevent initial code
extra/libevent/compat/sys/tree.h:
Libevent initial code
extra/libevent/devpoll.c:
Libevent initial code
extra/libevent/epoll.c:
Libevent initial code
extra/libevent/epoll_sub.c:
Libevent initial code
extra/libevent/evbuffer.c:
Libevent initial code
extra/libevent/evdns.c:
Libevent initial code
extra/libevent/evdns.h:
Libevent initial code
extra/libevent/event-config.h:
Libevent initial code
extra/libevent/event-internal.h:
Libevent initial code
extra/libevent/event.c:
Libevent initial code
extra/libevent/event.h:
Libevent initial code
extra/libevent/event_tagging.c:
Libevent initial code
extra/libevent/evhttp.h:
Libevent initial code
extra/libevent/evport.c:
Libevent initial code
extra/libevent/evrpc-internal.h:
Libevent initial code
extra/libevent/evrpc.c:
Libevent initial code
extra/libevent/evrpc.h:
Libevent initial code
extra/libevent/evsignal.h:
Libevent initial code
extra/libevent/evutil.c:
Libevent initial code
extra/libevent/evutil.h:
Libevent initial code
extra/libevent/http-internal.h:
Libevent initial code
extra/libevent/http.c:
Libevent initial code
extra/libevent/kqueue.c:
Libevent initial code
extra/libevent/log.c:
Libevent initial code
extra/libevent/log.h:
Libevent initial code
extra/libevent/min_heap.h:
Libevent initial code
extra/libevent/poll.c:
Libevent initial code
extra/libevent/select.c:
Libevent initial code
extra/libevent/signal.c:
Libevent initial code
extra/libevent/strlcpy-internal.h:
Libevent initial code
extra/libevent/strlcpy.c:
Libevent initial code
include/config-win.h:
Libevent support
include/my_dbug.h:
ADded _db_is_pushed
include/mysql.h.pp:
Update to handle new prototypes
include/typelib.h:
Split find_type_or_exit() into two functions
include/violite.h:
Added vio_is_pending()
libmysqld/Makefile.am:
Added libevent
mysql-test/include/have_pool_of_threads.inc:
Added test for pool-of-threads
mysql-test/mysql-test-run.pl:
Don't abort based on time and don't retry test cases when run under --gdb or --debug
mysql-test/r/crash_commit_before.result:
USE GLOBAL for debug variable
mysql-test/r/have_pool_of_threads.require:
Added test for pool-of-threads
mysql-test/r/pool_of_threads.result:
Added test for pool-of-threads
mysql-test/r/subselect_debug.result:
USE GLOBAL for debug variable
mysql-test/t/crash_commit_before.test:
USE GLOBAL for debug variable
mysql-test/t/merge-big.test:
USE GLOBAL for debug variable
mysql-test/t/pool_of_threads-master.opt:
Added test for pool-of-threads
mysql-test/t/pool_of_threads.test:
Added test for pool-of-threads
mysys/typelib.c:
Split find_type_or_exit() into find_type_with_warning()
sql/Makefile.am:
Added libevent
sql/handler.cc:
Indentation fix.
Fixed memory loss bug
Fixed crash on exit when handler plugin failed
sql/mysql_priv.h:
Added extra_max_connections and mysqld_extra_port
Added extern functions from sql_connect.cc
sql/mysqld.cc:
Added support for new mysqld options
Added code for 'extra-port' and 'extra-max-connections'
Split some functions into smaller pieces to be able to reuse code
Added code for test-ignore-wrong-options
sql/scheduler.cc:
Updated schduler code from MySQL 6.0
sql/scheduler.h:
Updated schduler code from MySQL 6.0
sql/set_var.cc:
Added support for changing "extra_max_connections"
sql/sql_class.cc:
Iniitalize thread schduler options in THD
sql/sql_class.h:
Added to extra_port and scheduler to 'THD'
sql/sql_connect.cc:
Use thd->schduler to check number of connections and terminate connection
Made some local functions global (for scheduler.cc)
vio/viosocket.c:
Added 'vio_pending', needed for scheduler..c
- Remove bothersome warning messages. This change focuses on the warnings
that are covered by the ignore file: support-files/compiler_warnings.supp.
- Strings are guaranteed to be max uint in length
- Added braces around expressions with &&, ||, & and |
- Added empty line before ; for empty while and for loops
- Added () around if with assignments
- Removed const before function returning simple type
Changed BUILD scripts to not build with NDB
BUILD/SETUP.sh:
By default, don't build ndb with --max in Maria tree.
NDB is not kept up to date anyway in 5.1
client/mysql.cc:
Added braces around && to get rid of compiler warnings
sql/event_db_repository.cc:
Added braces around && to get rid of compiler warnings
sql/events.cc:
Added braces around && to get rid of compiler warnings
sql/field.cc:
Added braces around && to get rid of compiler warnings
Fixed for loops
sql/field.h:
Added braces around & to get rid of compiler warnings
sql/field_conv.cc:
Added braces around && to get rid of compiler warnings
Fixed bug when copying between DATETIME fields and strict dates are used
Removed not needeed else
sql/gstream.cc:
Added braces around && to get rid of compiler warnings
sql/ha_ndbcluster.cc:
Added braces around && to get rid of compiler warnings
Added {} to get rid of compiler warnings
sql/handler.cc:
Added braces around && to get rid of compiler warnings
sql/item.cc:
Added braces around && to get rid of compiler warnings
sql/item_cmpfunc.cc:
Added braces around && to get rid of compiler warnings
Removed some not needed space
sql/item_func.cc:
Added braces around && to get rid of compiler warnings
sql/item_strfunc.cc:
Added braces around && to get rid of compiler warnings
sql/item_subselect.cc:
Added braces around && to get rid of compiler warnings
sql/item_sum.cc:
Added braces around && to get rid of compiler warnings
sql/item_timefunc.cc:
Added braces around && to get rid of compiler warnings
sql/item_xmlfunc.cc:
Added empty line before ; for empty while and for loops
sql/log.cc:
Added braces around && to get rid of compiler warnings
sql/log_event.cc:
Added braces around && to get rid of compiler warnings
Removed not needed else
sql/log_event_old.cc:
Added braces around && to get rid of compiler warnings
sql/opt_range.cc:
Added braces around && to get rid of compiler warnings
sql/opt_sum.cc:
Added braces around && to get rid of compiler warnings
sql/set_var.cc:
Added empty line before ; for empty while and for loops
Added () around if with assignments
sql/slave.cc:
Added braces around && to get rid of compiler warnings
Added empty line before ; for empty while and for loops
sql/spatial.h:
Added braces around && to get rid of compiler warnings
sql/sql_acl.cc:
Added braces around && to get rid of compiler warnings
sql/sql_analyse.cc:
Added empty line before ; for empty while and for loops
sql/sql_base.cc:
Added braces around && to get rid of compiler warnings
sql/sql_connect.cc:
Added braces around && to get rid of compiler warnings
sql/sql_db.cc:
Added braces around && to get rid of compiler warnings
sql/sql_delete.cc:
Added braces around && to get rid of compiler warnings
sql/sql_help.cc:
Added empty line before ; for empty while and for loops
sql/sql_insert.cc:
Added braces around && to get rid of compiler warnings
Added () around if with assignments
sql/sql_lex.cc:
Cast char array references to uchar; Fixed wrong array referencing when using characters > ASCII 128 in SQL statments
Added empty line before ; for empty while and for loops
Trivial indent fixes
Added braces around && to get rid of compiler warnings
sql/sql_load.cc:
Added braces around && to get rid of compiler warnings
sql/sql_parse.cc:
Added braces around && to get rid of compiler warnings
sql/sql_partition.cc:
Added braces around && to get rid of compiler warnings
sql/sql_plugin.cc:
Fixed bug in detecing if option variable should be readonly
Added empty line before ; for empty while and for loops
sql/sql_prepare.cc:
Added braces around && to get rid of compiler warnings
sql/sql_select.cc:
Added braces around && to get rid of compiler warnings
Added () around if with assignments
Added empty line before ; for empty while and for loops
sql/sql_show.cc:
Added braces around && to get rid of compiler warnings
sql/sql_table.cc:
Added braces around && to get rid of compiler warnings
sql/sql_trigger.cc:
Added braces around && to get rid of compiler warnings
sql/sql_update.cc:
Added braces around && to get rid of compiler warnings
sql/sql_yacc.yy:
Added braces around && to get rid of compiler warnings
sql/table.cc:
Added braces around && to get rid of compiler warnings
sql/table.h:
Added braces around && to get rid of compiler warnings
sql/time.cc:
Added braces around && to get rid of compiler warnings
sql/tztime.cc:
Added braces around && to get rid of compiler warnings
sql/uniques.cc:
Added braces around && to get rid of compiler warnings
storage/federated/ha_federated.cc:
Fixed bug in testing of variable to ha_info() (Not critical)
storage/heap/ha_heap.cc:
Added braces around && to get rid of compiler warnings
storage/maria/ha_maria.cc:
Fixed bug: Mark that maria_log_dir_path is readonly
Added braces around && to get rid of compiler warnings
storage/ndb/include/ndbapi/NdbEventOperation.hpp:
Removed const before function returning simple type
storage/ndb/include/ndbapi/NdbOperation.hpp:
Removed const before function returning simple type
storage/ndb/src/ndbapi/Ndb.cpp:
Added empty line before ; for empty while and for loops
storage/ndb/src/ndbapi/NdbEventOperation.cpp:
Removed const before function returning simple type
storage/ndb/src/ndbapi/NdbEventOperationImpl.cpp:
Removed const before function returning simple type
storage/ndb/src/ndbapi/NdbEventOperationImpl.hpp:
Removed const before function returning simple type
storage/ndb/src/ndbapi/NdbRecAttr.cpp:
Added empty line before ; for empty while and for loops
storage/ndb/src/ndbapi/TransporterFacade.hpp:
Added braces around && to get rid of compiler warnings
into magare.gmz:/home/kgeorge/mysql/work/merge-5.1-bugteam
mysql-test/r/grant.result:
Auto merged
mysql-test/t/grant.test:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_connect.cc:
Auto merged
The server used to trust blindly information from the client about
its capabilities. During the connection handshake the server sends
information about what it supports and then the client sends back a
set of capabilities which cover all of the server's or less.
Before this changeset the server didn't check whether the flags sent
by the client were valid for the server. For example, if the server
doesn't support compressed protocol but the client does and sends that
bit turned on, the server didn't check it. The change make the server code
less error prone to problems related to the value of THD::client_capabilities.
Clearly there is no vulnerability being fixed but this is a maintainenance
fix to prevent misusage in the future.
include/mysql_com.h:
List all CLIENT flags in a common defition. Add also a definition
which excludes flags, which are optoinal.
sql/sql_connect.cc:
Renamed client_flags to server_capabilities to reflect what
the server supports. Only allow from the client the flags the
server supports.
than max_connections -- which results in user lockout.
The problem was that the variable thread_count that contains
the number of active threads was interpreted as a number of
active connections.
The fix is to introduce a new counter for active connections.
mysql-test/r/connect.result:
A test case for Bug#33507: Event scheduler creates more threads
than max_connections -- which results in user lockout.
mysql-test/t/connect.test:
A test case for Bug#33507: Event scheduler creates more threads
than max_connections -- which results in user lockout.
sql/mysql_priv.h:
1. Polishing: login_connection() and end_connection() need not
to be public.
2. Introduce connection_count -- a variable to contain the number
of active connections. It is protected by LOCK_connection_count.
sql/mysqld.cc:
Use connection_count to count active connections.
sql/sql_connect.cc:
1. Use connection_count to count active connections.
2. Make login_connection(), end_connection() private for the module
as they had to be.
into quad.:/mnt/raid/alik/MySQL/devel/5.1-rt-merged
client/mysqltest.c:
Auto merged
mysql-test/r/view.result:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/ha_ndbcluster_binlog.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/log_event.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_connect.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
tests/mysql_client_test.c:
Auto merged
mysql-test/suite/rpl_ndb/t/disabled.def:
Manually merged.
mysql-test/t/disabled.def:
Manually merged.
cause ROLLBACK of statement", part 1. Review fixes.
Do not send OK/EOF packets to the client until we reached the end of
the current statement.
This is a consolidation, to keep the functionality that is shared by all
SQL statements in one place in the server.
Currently this functionality includes:
- close_thread_tables()
- log_slow_statement().
After this patch and the subsequent patch for Bug#12713, it shall also include:
- ha_autocommit_or_rollback()
- net_end_statement()
- query_cache_end_of_result().
In future it may also include:
- mysql_reset_thd_for_next_command().
include/mysql_com.h:
Rename now unused members of NET: no_send_ok, no_send_error, report_error.
These were server-specific variables related to the client/server
protocol. They have been made obsolete by this patch.
Previously the same members of NET were used to store the error message
both on the client and on the server.
The error message was stored in net.last_error (client: mysql->net.last_error,
server: thd->net.last_error).
The error code was stored in net.last_errno (client: mysql->net.last_errno,
server: thd->net.last_errno).
The server error code and message are now stored elsewhere
(in the Diagnostics_area), thus NET members are no longer used by the
server.
Rename last_error to client_last_error, last_errno to client_last_errno
to avoid potential bugs introduced by merges.
include/mysql_h.ic:
Update the ABI file to reflect a rename.
Renames do not break the binary compatibility.
libmysql/libmysql.c:
Rename last_error to client_last_error, last_errno to client_last_errno.
This is necessary to ensure no unnoticed bugs introduced by merged
changesets.
Remove net.report_error, net.no_send_ok, net.no_send_error.
libmysql/manager.c:
Rename net.last_errno to net.client_last_errno.
libmysqld/lib_sql.cc:
Rename net.last_errno to net.client_last_errno.
Update the embedded implementation of the client-server protocol to
reflect the refactoring of protocol.cc.
libmysqld/libmysqld.c:
Rename net.last_errno to net.client_last_errno.
mysql-test/r/events.result:
Update to reflect the change in mysql_rm_db(). Now we drop stored
routines and events for a given database name only if there
is a directory for this database name. ha_drop_database() and
query_cache_invalidate() are called likewise.
Previously we would attempt to drop routines/events even if database
directory was not found (it worked, since routines and events are stored
in tables). This fixes Bug 29958 "Weird message on DROP DATABASE if mysql.proc
does not exist".
The change was done because the previous code used to call send_ok()
twice, which led to an assertion failure when asserts against it were
added by this patch.
mysql-test/r/grant.result:
Fix the patch for Bug 16470, now FLUSH PRIVILEGES produces an error
if mysql.procs_priv is missing.
This fixes the assert that send_ok() must not called after send_error()
(the original patch for Bug 16470 was prone to this).
mysql-test/suite/rpl/r/rpl_row_tabledefs_2myisam.result:
Produce a more detailed error message.
mysql-test/suite/rpl/r/rpl_row_tabledefs_3innodb.result:
Produce a more detailed error message.
mysql-test/t/grant.test:
Update the test, now FLUSH PRIVILEGES returns an error if mysql.procs_priv
is missing.
server-tools/instance-manager/mysql_connection.cc:
Rename net.last_errno to net.client_last_errno.
sql/ha_ndbcluster_binlog.cc:
Add asserts.
Use getters to access statement status information.
Add a comment why run_query() is broken. Reset the diagnostics area
in the end of run_query() to fulfill the invariant that the diagnostics_area
is never assigned twice per statement (see the comment in the code
when this can happen). We still do not clear thd->is_fatal_error and
thd->is_slave_error, which may lead to bugs, I consider the whole affair
as something to be dealt with separately.
sql/ha_partition.cc:
fatal_error() doesn't set an error by itself. Perhaps we should
remove this method altogether and instead add a flag to my_error
to set thd->is_fatal_error property.
Meanwhile, this change is a part of inspection made to the entire source
code with the goal to ensure that fatal_error()
is always accompanied by my_error().
sql/item_func.cc:
There is no net.last_error anymore. Remove the obsolete assignment.
sql/log_event.cc:
Use getters to access statement error status information.
sql/log_event_old.cc:
Use getters to access statement error status information.
sql/mysqld.cc:
Previously, if a continue handler for an error was found, my_message_sql()
would not set an error in THD. Since the current statement
must be aborted in any case, find_handler() had a hack to assign
thd->net.report_error to 1.
Remove this hack. Set an error in my_message_sql() even if the continue
handler is found. The error will be cleared anyway when the handler
is executed. This is one action among many in this patch to ensure the
invariant that whenever thd->is_error() is TRUE, we have a message in
thd->main_da.message().
sql/net_serv.cc:
Use a full-blown my_error() in net_serv.cc to report an error,
instead of just setting net->last_errno. This ensures the invariant that
whenever thd->is_error() returns TRUE, we have a message in
thd->main_da.message().
Remove initialization of removed NET members.
sql/opt_range.cc:
Use my_error() instead of just raising thd->net.report_error.
This ensures the invariant that whenever thd->is_error() returns TRUE,
there is a message in thd->main_da.message().
sql/opt_sum.cc:
Move invocation of fatal_error() right next to the place where
we set the error message. That makes it easier to track that whenever
fatal_error() is called, there is a message in THD.
sql/protocol.cc:
Rename send_ok() and send_eof() to net_send_ok() and net_send_eof()
respectively. These functions write directly to the network and are not
for use anywhere outside the client/server protocol code.
Remove the code that was responsible for cases when either there is
no error code, or no error message, or both.
Instead the calling code ensures that they are always present. Asserts
are added to enforce the invariant.
Instead of a direct access to thd->server_status and thd->total_warn_count
use function parameters, since these from now on don't always come directly
from THD.
Introduce net_end_statement(), the single-entry-point replacement API for
send_ok(), send_eof() and net_send_error().
Implement Protocol::end_partial_result_set to use in select_send::abort()
when there is a continue handler.
sql/protocol.h:
Update declarations.
sql/repl_failsafe.cc:
Use getters to access statement status information in THD.
Rename net.last_error to net.client_last_error.
sql/rpl_record.cc:
Set an error message in prepare_record() if there is no default
value for the field -- later we do print this message to the client.
sql/rpl_rli.cc:
Use getters to access statement status information in THD.
sql/slave.cc:
In create_table_from_dump() (a common function that is used in
LOAD MASTER TABLE SQL statement and COM_LOAD_MASTER_DATA), instead of hacks
with no_send_ok, clear the diagnostics area when mysql_rm_table() succeeded.
Update has_temporary_error() to work correctly when no error is set.
This is the case when Incident_log_event is executed: it always returns
an error but does not set an error message.
Use getters to access error status information.
sql/sp_head.cc:
Instead of hacks with no_send_error, work through the diagnostics area
interface to suppress sending of OK/ERROR packets to the client.
Move query_cache_end_of_result before log_slow_statement(), similarly
to how it's done in dispatch_command().
sql/sp_rcontext.cc:
Remove hacks with assignment of thd->net.report_error, they are not
necessary any more (see the changes in mysqld.cc).
sql/sql_acl.cc:
Use getters to access error status information in THD.
sql/sql_base.cc:
Access thd->main_da.sql_errno() only if there is an error. This fixes
a bug when auto-discovery, that was effectively disabled under pre-locking.
sql/sql_binlog.cc:
Remove hacks with no_send_ok/no_send_error, they are not necessary
anymore: the caller is responsible for network communication.
sql/sql_cache.cc:
Disable sending of OK/ERROR/EOF packet in the end of dispatch_command
if the response has been served from the query cache. This raises the
question whether we should store EOF packet in the query cache at all,
or generate it anew for each statement (we should generate it anew), but
this is to be addressed separately.
sql/sql_class.cc:
Implement class Diagnostics_area. Please see comments in sql_class.h
for details.
Fix a subtle coding mistake in select_send::send_data: when on slave,
an error in Item::send() was ignored.
The problem became visible due to asserts that the diagnostics area is
never double assigned.
Remove initialization of removed NET members.
In select_send::abort() do not call select_send::send_eof(). This is
not inheritance-safe. Even if a stored procedure continue handler is
found, the current statement is aborted, not succeeded.
Instead introduce a Protocol API to send the required response,
Protocol::end_partial_result_set().
This simplifies implementation of select_send::send_eof(). No need
to add more asserts that there is no error, there is an assert inside
Diagnostics_area::set_ok_status() already.
Leave no trace of no_send_* in the code.
sql/sql_class.h:
Declare class Diagnostics_area.
Remove the hack with no_send_ok from
Substatement_state.
Provide inline implementations of send_ok/send_eof.
Add commetns.
sql/sql_connect.cc:
Remove hacks with no_send_error.
Since now an error in THD is always set if net->error, it's not necessary
to check both net->error and thd->is_error() in the do_command loop.
Use thd->main_da.message() instead of net->last_errno.
Remove the hack with is_slave_error in sys_init_connect. Since now we do not
reset the diagnostics area in net_send_error (it's reset at the beginning
of the next statement), we can access it safely even after
execute_init_command.
sql/sql_db.cc:
Update the code to satisfy the invariant that the diagnostics area is never
assigned twice.
Incidentally, this fixes Bug 29958 "Weird message on DROP DATABASE if
mysql.proc does not exist".
sql/sql_delete.cc:
Change multi-delete to abort in abort(), as per select_send protocol.
Fixes the merge error with the test for Bug 29136
sql/sql_derived.cc:
Use getters to access error information.
sql/sql_insert.cc:
Use getters to access error information.
sql-common/client.c:
Rename last_error to client_last_error, last_errno to client_last_errno.
sql/sql_parse.cc:
Remove hacks with no_send_error. Deploy net_end_statement().
The story of COM_SHUTDOWN is interesting. Long story short, the server
would become on its death's door, and only no_send_ok/no_send_error assigned
by send_ok()/net_send_error() would hide its babbling from the client.
First of all, COM_QUIT does not require a response. So, the comment saying
"Let's send a response to possible COM_QUIT" is not only groundless
(even mysqladmin shutdown/mysql_shutdown() doesn't send COM_QUIT after
COM_SHUTDOWN), it's plainly incorrect.
Secondly, besides this additional 'OK' packet to respond to a hypothetical
COM_QUIT, there was the following code in dispatch_command():
if (thd->killed)
thd->send_kill_message();
if (thd->is_error()
net_send_error(thd);
This worked out really funny for the thread through which COM_SHUTDOWN
was delivered: we would get COM_SHUTDOWN, say okay, say okay again,
kill everybody, get the kill signal ourselves, and then attempt to say
"Server shutdown in progress" to the client that is very likely long gone.
This all became visible when asserts were added that the Diagnostics_area
is not assigned twice.
Move query_cache_end_of_result() to the end of dispatch_command(), since
net_send_eof() has been moved there. This is safe, query_cache_end_of_result()
is a no-op if there is no started query in the cache.
Consistently use select_send interface to call abort() or send_eof()
depending on the operation result.
Remove thd->fatal_error() from reset_master(), it was a no-op.
in hacks with no_send_error woudl save us
from complete breakage of the client/server protocol.
Consistently use select_send::abort() whenever there is an error,
and select_send::send_eof() in case of success.
The issue became visible due to added asserts.
sql/sql_partition.cc:
Always set an error in THD whenever there is a call to fatal_error().
sql/sql_prepare.cc:
Deploy class Diagnostics_area.
Remove the unnecessary juggling with the protocol in
Select_fetch_protocol_binary::send_eof(). EOF packet format is
protocol-independent.
sql/sql_select.cc:
Call fatal_error() directly in opt_sum_query.
Call my_error() whenever we call thd->fatal_error().
sql/sql_servers.cc:
Use getters to access error information in THD.
sql/sql_show.cc:
Use getters to access error information in THD.
Add comments.
Call my_error() whenever we call fatal_error().
sql/sql_table.cc:
Replace hacks with no_send_ok with the interface of the diagnostics area.
Clear the error if ENOENT error in ha_delete_table().
sql/sql_update.cc:
Introduce multi_update::abort(), which is the proper way to abort a
multi-update. This fixes the merge conflict between this patch and
the patch for Bug 29136.
sql/table.cc:
Use a getter to access error information in THD.
sql/tztime.cc:
Use a getter to access error information in THD.
into mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-last_with_main
libmysqld/lib_sql.cc:
Auto merged
mysql-test/include/mix1.inc:
Auto merged
mysql-test/r/innodb_mysql.result:
Auto merged
sql/event_scheduler.cc:
Auto merged
sql/events.cc:
Auto merged
sql/ha_ndbcluster_binlog.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/slave.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_connect.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_yacc.yy:
Auto merged
into stella.local:/home2/mydev/mysql-5.1-bug31210
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_connect.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_servers.cc:
Auto merged
sql/sql_udf.cc:
Auto merged
sql/table.cc:
Auto merged
partitioned table
Trying INSERT DELAYED on a partitioned table, that has not been
used right before, crashes the server. When a table is used for
select or update, it is kept open for some time. This period I
mean with "right before".
Information about partitioning of a table is stored in form of
a string in the .frm file. Parsing of this string requires a
correctly set up lexical analyzer (lex). The partitioning code
uses a new temporary instance of a lex. But it does still refer
to the previously active lex. The delayd insert thread does not
initialize its lex though...
Added initialization for thd->lex before open table in the delayed
thread and at all other places where it is necessary to call
lex_start() if all tables would be partitioned and need to parse
the .frm file.
mysql-test/r/partition_hash.result:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Added test result
mysql-test/t/partition_hash.test:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Added test
sql/event_scheduler.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/events.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/ha_ndbcluster_binlog.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/slave.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/sql_acl.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/sql_base.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Asserted that lex is initialized in open_table().
sql/sql_connect.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/sql_insert.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Added initialization for thd->lex before open table.
sql/sql_lex.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Added 'is_lex_started' to test if lex is initialized.
sql/sql_lex.h:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Added 'is_lex_started' to test if lex is initialized.
sql/sql_plugin.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/sql_servers.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/sql_udf.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
sql/table.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Asserted that lex is initialized in open_table_from_share().
sql/tztime.cc:
Bug#31210 - INSERT DELAYED crashes server when used on
partitioned table
Initialized lex for later use in open_table().
The mysql_change_user command fails to properly update the database pointer
when no database is selected, leading to "use after free" errors. The same
happens on the user privilege pointer in the thread security context.
The solution is to properly reset and update the database name. Also update
the user_priv pointer so that it doesn't point to freed memory.
sql/sql_connect.cc:
After a successful call to check_user() without specifying a new
database name, the previous database thd->db) is freed but the
pointer is not updated to NULL.
sql/sql_parse.cc:
Update the security_ctx->priv_user pointer as it is a alias for
the user security_ctx->user pointer. Also remove unneeded cast,
the x_free macro casts the argument.
check_user()/check_connection()/check_for_max_user_connections().
This is a pre-requisite patch for the fix for Bug#12713 "Error in a stored
function called from a SELECT doesn't cause ROLLBACK of statem"
Implement review comments.
sql/mysql_priv.h:
check_for_max_user_connections() is used in one place only, make it static.
sql/mysqld.cc:
Remove net_printf_error(): a consolidation of error reporting facilities
is necessary to simplify maintenance of the query cache, the
client-server protocol, stored procedure continue handlers.
Rewrite the only place where its use is somewhat justified
(my_error() can not be used since we need to report an error for the thread
that does not exist) with my_snprintf()/net_send_error().
sql/protocol.cc:
Remove net_printf_error().
sql/protocol.h:
Remove net_printf_error().
sql/sql_connect.cc:
Remove net_printf_error(). In check_connection()/check_user()/
check_for_max_user_connections() do not write directly to the network,
but use the standard my_error() mechanism to record an error in THD.
It will be sent to the client by the caller. This was the last place
in the server that would attempt to send an error directly, mainly left
untouched by 5.0 refactoring because it is executed only during
thread startup.
sql/sql_parse.cc:
In the old code, when res was greater than 0, it contained an exact
error code, e.g. ER_OUT_OF_RESOURCES or NO SUCH DATABASE,
or ER_HANDSHAKE_ERROR. I don't know the reason why this error code was
ignored, and instead a generic ER_UNKNOWN_COM_ERROR was pushed into the
error stack, but knowing the relaxed attitude towards preserving the error
codes in the old code, I'm inclinded to think that it was a bug.
After this patch, the most specific error message is already pushed,
so calling my_message() again is useless.
If res is < 0, the error used to be already sent. This is not done
by the new code, but will be done later, in the end
of dispatch_command(). When this is done, clear_error() will be called
for us - it is in the first lines of do_command.
To sum up, this change is to remove COM_CHANGE_USER specific error handling
in favor of the standard one employed for all other COM_* commands.
