Added additional verification option for secure connections by checking the
client certificate fingerprint. The fingerprint option implies REQUIRE X509
and REQUIRE SSL.
The fingerprint has to be passed as SHA224, SHA256, SHA384 or SHA512
hexadecimal hash.
Example:
CREATE USER tlsuser@localhost REQUIRE
FINGERPRINT X'82E26FC8E2B1ACE188EE27DD1FCB98A78B1F1390B10F3788497561D1';
MDEV-31992 Automatic conversion from LEX_STRING to LEX_CSTRING
- Adding automatic conversion operator from LEX_STRING to LEX_CSTRING
Now a LEX_STRING can be passed directly to any function expecting
a LEX_CSTRING parameter passed by value or by reference.
- Removing a number of duplicate methods accepting LEX_STRING.
Now the code used the LEX_CSTRING version.
- Moving some of Database_qualidied_name methods into a new class
Identifier_chain2.
- Changing the data type of the following variables from
Database_qualified_name to Identifier_chain2:
* q_pkg_proc in LEX::call_statement_start()
* q_pkg_func in LEX::make_item_func_call_generic()
Rationale:
The data type of Database_qualified_name::m_db will be changed
to Lex_ident_db soon. So Database_qualified_name won't be able
to store the `pkg.routine` part of `db.pkg.routine` any more,
because `pkg` must not depend on lower-case-table-names.
- Changing the data type of the global variable any_db from
LEX_CSTRING to Lex_ident_db
- Removing the dependency on system_charset_info from
Lex_ident_fs::check_body(), using my_charset_utf8mb3_general_ci directly,
because system_charset_info is initialized much later than any_db.
system_charset_info cannot be changed dynamically any way.
- Removing the unsed old code from Lex_ident_fs::check_body().
This code was last used in MySQL-4.0 and won't be used in the future.
MDEV-31986 Remove old check_db_name() from make_table_name_list()
- Replacing the old style inplace check_db_name() in make_table_name_list()
to the new style non-modifying code
- Adding "const" qualifier to the "db" parameter to ha_discover_table_names()
and its dependency functions.
MDEV-31982 Remove check_db_name() from prepare_db_action()
- Adding a new class Lex_ident_db, to store normalized database names:
lower-cased if lower-case-table-name says so,
and checked to be a valid database name using Lex_ident_fs::check_db_name()
- Reusing the new class in parameters to functions:
prepare_db_action()
mysql_create_db()
mysql_alter_db()
mysql_rm_db()
mysql_upgrade_db()
This change removed two old-style check_db_name() calls.
MDEV-31978 Turn ok_for_lower_case_names() to a method in Lex_ident_fs
- Changing the global function ok_for_lower_case_names()
into a method in class Lex_ident_fs.
- Changing a few functions/methods to get the database name
as a "const LEX_CSTRING" instead of a "const char *".
All these functions/methods use ok_for_lower_case_names()
inside. This change helps to avoid new strlen() calls, and also
removes a few old strlen() calls.
MDEV-31974 Remove global function normalize_db_name()
The function normalize_db_name() fully repeated the functionality
of the class DBNameBuffer. This patch removes normalize_db_name()
and replaces it to a DBNameBuffer based code.
MDEV-31972 Change parameter of make_sp_name*() from LEX_CSTRING to Lex_ident_sys_st
Changing LEX_CSTRING* parameters of LEX::make_sp_name() to Lex_ident_sys_st.
This makes the code clear because a value of Lex_ident_sys_st has
some guaranteed additional constraints over a base LEX_CSTRING:
- Its LEX_CSTRING::str is not NULL (sql_yacc.yy would abort otherwise)
- Its LEX_CSTRING::str is 0-terminated
- Its a valid utf8 string
- The string pointed by LEX_CSTRING::str was created on THD::mem_root
Also changing "pass by pointer" to "pass by reference",
as these parameters can never be NULL - they are Bison stack variables.
Adding a new method Lex_ident_fs::check_db_name_with_error(),
which performs validation and raises an error on validation failure.
Unlike the old function check_db_name(), the new class Lex_ident_fs
does not lower-case the identifier during the validation.
Lower-casing must be done before calling Lex_ident_fs validation methods.
- Adding a low level helper template class CharBuffer which can:
* store exact or lower-cased strings with a short fixed maximum length
* return the value as a LEX_CSTRING efficiently
- Adding a helper template class DBNameBuffer (deriving from CharBuffer), to
allocate optionally lower-cased database identifiers on stack when relevant.
Useful for temporary values which don't need to be allocated on MEM_ROOT.
