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aligned.h
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aria_backup.h
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assume_aligned.h
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authors.h
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backup.h
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bounded_queue.h
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char_buffer.h
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charset_collations.h
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client_settings.h
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compat56.h
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config.h
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contributors.h
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create_options.h
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create_tmp_table.h
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cset_narrowing.h
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custom_conf.h
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datadict.h
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ddl_log.h
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debug.h
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debug_sync.h
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deprecation.h
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derived_handler.h
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derror.h
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des_key_file.h
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discover.h
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dur_prop.h
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embedded_priv.h
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event_data_objects.h
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event_db_repository.h
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event_parse_data.h
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event_queue.h
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event_scheduler.h
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events.h
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field.h
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field_comp.h
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filesort.h
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filesort_utils.h
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ft_global.h
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gcalc_slicescan.h
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gcalc_tools.h
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grant.h
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group_by_handler.h
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gstream.h
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gtid_index.h
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ha_handler_stats.h
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ha_partition.h
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ha_sequence.h
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handle_connections_win.h
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handler.h
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hash.h
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hash_filo.h
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heap.h
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hostname.h
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init.h
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innodb_priv.h
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item.h
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item_cmpfunc.h
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item_create.h
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item_func.h
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item_geofunc.h
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item_jsonfunc.h
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item_row.h
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item_strfunc.h
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item_subselect.h
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item_sum.h
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item_timefunc.h
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item_vers.h
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item_windowfunc.h
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item_xmlfunc.h
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json_schema.h
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json_schema_helper.h
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json_table.h
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key.h
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keycaches.h
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lex.h
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lex_charset.h
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lex_hash.h
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lex_ident.h
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lex_string.h
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lex_symbol.h
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lex_token.h
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lf.h
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lock.h
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log.h
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log_cache.h
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log_event.h
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log_event_data_type.h
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log_slow.h
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maria.h
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mariadb.h
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mdl.h
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mem_root_array.h
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message.h
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multi_range_read.h
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my_apc.h
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my_atomic.h
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my_atomic_wrapper.h
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my_base.h
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my_bit.h
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my_check_opt.h
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my_compare.h
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my_counter.h
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my_cpu.h
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my_crypt.h
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my_decimal.h
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my_default.h
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my_handler_errors.h
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my_json_writer.h
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my_libwrap.h
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my_md5.h
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my_minidump.h
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my_nosys.h
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my_rdtsc.h
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my_rnd.h
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my_service_manager.h
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my_stack_alloc.h
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my_stacktrace.h
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my_time.h
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my_tracker.h
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my_tree.h
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my_uctype.h
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my_user.h
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my_virtual_mem.h
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myisam.h
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myisamchk.h
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myisammrg.h
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myisampack.h
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mysqld.h
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mysqld_default_groups.h
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mysqld_suffix.h
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mysys_err.h
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opt_histogram_json.h
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opt_range.h
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opt_rewrite_date_cmp.h
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opt_subselect.h
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opt_trace.h
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opt_trace_context.h
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optimizer_costs.h
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optimizer_defaults.h
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parse_file.h
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partition_element.h
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partition_info.h
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password.h
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pfs_file_provider.h
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pfs_idle_provider.h
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pfs_memory_provider.h
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pfs_metadata_provider.h
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pfs_socket_provider.h
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pfs_stage_provider.h
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pfs_statement_provider.h
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pfs_table_provider.h
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pfs_thread_provider.h
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pfs_transaction_provider.h
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privilege.h
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probes_mysql.h
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probes_mysql_dtrace.h
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probes_mysql_nodtrace.h
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procedure.h
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protocol.h
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proxy_protocol.h
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queues.h
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records.h
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repl_failsafe.h
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replication.h
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rijndael.h
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rowid_filter.h
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rpl_constants.h
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rpl_filter.h
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rpl_gtid.h
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rpl_injector.h
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rpl_mi.h
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rpl_parallel.h
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rpl_record.h
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rpl_reporting.h
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rpl_rli.h
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rpl_tblmap.h
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rpl_utility.h
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scheduler.h
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scope.h
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select_handler.h
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semisync.h
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semisync_master.h
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semisync_master_ack_receiver.h
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semisync_slave.h
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service_versions.h
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session_tracker.h
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set_var.h
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simple_tokenizer.h
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slave.h
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socketpair.h
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source_revision.h
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sp.h
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sp_cache.h
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sp_head.h
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sp_instr.h
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sp_pcontext.h
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sp_rcontext.h
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span.h
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spatial.h
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sql_acl.h
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sql_admin.h
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sql_alloc.h
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sql_alter.h
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sql_analyse.h
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sql_analyze_stmt.h
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sql_array.h
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sql_audit.h
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sql_base.h
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sql_basic_types.h
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sql_binlog.h
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sql_bitmap.h
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sql_bootstrap.h
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sql_cache.h
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sql_callback.h
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sql_class.h
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sql_cmd.h
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sql_connect.h
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sql_const.h
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sql_crypt.h
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sql_cte.h
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sql_cursor.h
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sql_db.h
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sql_debug.h
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sql_delete.h
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sql_derived.h
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sql_digest.h
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sql_do.h
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sql_error.h
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sql_explain.h
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sql_expression_cache.h
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sql_get_diagnostics.h
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sql_handler.h
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sql_help.h
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sql_hset.h
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sql_i_s.h
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sql_insert.h
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sql_join_cache.h
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sql_lex.h
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sql_lifo_buffer.h
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sql_limit.h
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sql_list.h
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sql_load.h
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sql_locale.h
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sql_manager.h
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sql_mode.h
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sql_parse.h
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sql_partition.h
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sql_partition_admin.h
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sql_plist.h
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sql_plugin.h
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sql_plugin_compat.h
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sql_prepare.h
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sql_priv.h
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sql_profile.h
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sql_reload.h
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sql_rename.h
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sql_schema.h
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sql_select.h
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sql_sequence.h
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sql_servers.h
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sql_show.h
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sql_signal.h
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sql_sort.h
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sql_statistics.h
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sql_string.h
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sql_table.h
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sql_test.h
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sql_time.h
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sql_trigger.h
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sql_truncate.h
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sql_tvc.h
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sql_type.h
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sql_type_fixedbin.h
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sql_type_int.h
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sql_type_json.h
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sql_type_real.h
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sql_type_string.h
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sql_type_timeofday.h
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sql_udf.h
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sql_union.h
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sql_update.h
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sql_used.h
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sql_view.h
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sql_window.h
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ssl_compat.h
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strfunc.h
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structs.h
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sys_vars_shared.h
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t_ctype.h
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table.h
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table_cache.h
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thr_lock.h
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thr_malloc.h
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thr_timer.h
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thread_cache.h
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threadpool.h
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threadpool_generic.h
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threadpool_winsockets.h
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transaction.h
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tzfile.h
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uniques.h
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unireg.h
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vers_string.h
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violite.h
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waiting_threads.h
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welcome_copyright_notice.h
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winservice.h
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wqueue.h
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wsrep.h
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wsrep_allowlist_service.h
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wsrep_applier.h
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wsrep_binlog.h
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wsrep_client_service.h
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wsrep_client_state.h
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wsrep_condition_variable.h
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wsrep_event_service.h
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wsrep_high_priority_service.h
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wsrep_mutex.h
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wsrep_mysqld.h
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wsrep_mysqld_c.h
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wsrep_on.h
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wsrep_plugin.h
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wsrep_priv.h
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wsrep_schema.h
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wsrep_server_service.h
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wsrep_server_state.h
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wsrep_sst.h
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wsrep_status.h
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wsrep_storage_service.h
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wsrep_thd.h
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wsrep_trans_observer.h
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wsrep_types.h
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wsrep_utils.h
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wsrep_var.h
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wsrep_xid.h
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Code Editor : sql_acl.h
#ifndef SQL_ACL_INCLUDED #define SQL_ACL_INCLUDED /* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. Copyright (c) 2017, 2020, 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 Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ #include "violite.h" /* SSL_type */ #include "sql_class.h" /* LEX_COLUMN */ #include "grant.h" #include "sql_cmd.h" /* Sql_cmd */ enum mysql_db_table_field { MYSQL_DB_FIELD_HOST = 0, MYSQL_DB_FIELD_DB, MYSQL_DB_FIELD_USER, MYSQL_DB_FIELD_SELECT_PRIV, MYSQL_DB_FIELD_INSERT_PRIV, MYSQL_DB_FIELD_UPDATE_PRIV, MYSQL_DB_FIELD_DELETE_PRIV, MYSQL_DB_FIELD_CREATE_PRIV, MYSQL_DB_FIELD_DROP_PRIV, MYSQL_DB_FIELD_GRANT_PRIV, MYSQL_DB_FIELD_REFERENCES_PRIV, MYSQL_DB_FIELD_INDEX_PRIV, MYSQL_DB_FIELD_ALTER_PRIV, MYSQL_DB_FIELD_CREATE_TMP_TABLE_PRIV, MYSQL_DB_FIELD_LOCK_TABLES_PRIV, MYSQL_DB_FIELD_CREATE_VIEW_PRIV, MYSQL_DB_FIELD_SHOW_VIEW_PRIV, MYSQL_DB_FIELD_CREATE_ROUTINE_PRIV, MYSQL_DB_FIELD_ALTER_ROUTINE_PRIV, MYSQL_DB_FIELD_EXECUTE_PRIV, MYSQL_DB_FIELD_EVENT_PRIV, MYSQL_DB_FIELD_TRIGGER_PRIV, MYSQL_DB_FIELD_DELETE_VERSIONING_ROWS_PRIV, MYSQL_DB_FIELD_COUNT }; extern const TABLE_FIELD_DEF mysql_db_table_def; extern bool mysql_user_table_is_in_short_password_format; extern LEX_CSTRING host_not_specified; extern LEX_CSTRING current_user; extern LEX_CSTRING current_role; extern LEX_CSTRING current_user_and_current_role; extern LEX_CSTRING none; extern LEX_CSTRING public_name; static inline int access_denied_error_code(int passwd_used) { #ifdef mysqld_error_find_printf_error_used return 0; #else return passwd_used == 2 ? ER_ACCESS_DENIED_NO_PASSWORD_ERROR : ER_ACCESS_DENIED_ERROR; #endif } /* prototypes */ bool hostname_requires_resolving(const char *hostname); bool acl_init(bool dont_read_acl_tables); bool acl_reload(THD *thd); void acl_free(bool end=0); privilege_t acl_get_all3(Security_context *sctx, const char *db, bool db_is_patern); bool acl_authenticate(THD *thd, uint com_change_user_pkt_len); bool acl_getroot(Security_context *sctx, const char *user, const char *host, const char *ip, const char *db); bool acl_check_host(const char *host, const char *ip); bool check_change_password(THD *thd, LEX_USER *user); bool change_password(THD *thd, LEX_USER *user); bool mysql_grant_role(THD *thd, List<LEX_USER> &user_list, bool revoke); int mysql_table_grant(THD *thd, TABLE_LIST *table, List <LEX_USER> &user_list, List <LEX_COLUMN> &column_list, privilege_t rights, bool revoke); bool mysql_routine_grant(THD *thd, TABLE_LIST *table, const Sp_handler *sph, List <LEX_USER> &user_list, privilege_t rights, bool revoke, bool write_to_binlog); bool grant_init(); void grant_free(void); bool grant_reload(THD *thd); bool check_grant(THD *thd, privilege_t want_access, TABLE_LIST *tables, bool any_combination_will_do, uint number, bool no_errors); bool check_grant_column (THD *thd, GRANT_INFO *grant, const char *db_name, const char *table_name, const char *name, size_t length, Security_context *sctx); bool check_column_grant_in_table_ref(THD *thd, TABLE_LIST * table_ref, const char *name, size_t length, Field *fld); bool check_grant_all_columns(THD *thd, privilege_t want_access, Field_iterator_table_ref *fields); bool check_grant_routine(THD *thd, privilege_t want_access, TABLE_LIST *procs, const Sp_handler *sph, bool no_error); bool check_grant_db(THD *thd,const char *db); bool check_global_access(THD *thd, const privilege_t want_access, bool no_errors= false); bool check_access(THD *thd, privilege_t want_access, const char *db, privilege_t *save_priv, GRANT_INTERNAL_INFO *grant_internal_info, bool dont_check_global_grants, bool no_errors); privilege_t get_table_grant(THD *thd, TABLE_LIST *table); privilege_t get_column_grant(THD *thd, GRANT_INFO *grant, const char *db_name, const char *table_name, const char *field_name); bool get_show_user(THD *thd, LEX_USER *lex_user, const char **username, const char **hostname, const char **rolename); void mysql_show_grants_get_fields(THD *thd, List<Item> *fields, const char *name, size_t length); bool mysql_show_grants(THD *thd, LEX_USER *user); bool mysql_show_create_user(THD *thd, LEX_USER *user); int fill_schema_enabled_roles(THD *thd, TABLE_LIST *tables, COND *cond); int fill_schema_applicable_roles(THD *thd, TABLE_LIST *tables, COND *cond); void get_privilege_desc(char *to, uint max_length, privilege_t access); void get_mqh(const char *user, const char *host, USER_CONN *uc); bool mysql_create_user(THD *thd, List <LEX_USER> &list, bool handle_as_role); bool mysql_drop_user(THD *thd, List <LEX_USER> &list, bool handle_as_role); bool mysql_rename_user(THD *thd, List <LEX_USER> &list); int mysql_alter_user(THD *thd, List <LEX_USER> &list); bool mysql_revoke_all(THD *thd, List <LEX_USER> &list); void fill_effective_table_privileges(THD *thd, GRANT_INFO *grant, const char *db, const char *table); bool sp_revoke_privileges(THD *thd, const char *sp_db, const char *sp_name, const Sp_handler *sph); bool sp_grant_privileges(THD *thd, const char *sp_db, const char *sp_name, const Sp_handler *sph); bool check_routine_level_acl(THD *thd, privilege_t acl, const char *db, const char *name, const Sp_handler *sph); bool is_acl_user(const char *host, const char *user); int fill_schema_user_privileges(THD *thd, TABLE_LIST *tables, COND *cond); int fill_schema_schema_privileges(THD *thd, TABLE_LIST *tables, COND *cond); int fill_schema_table_privileges(THD *thd, TABLE_LIST *tables, COND *cond); int fill_schema_column_privileges(THD *thd, TABLE_LIST *tables, COND *cond); int wild_case_compare(CHARSET_INFO *cs, const char *str,const char *wildstr); /** Result of an access check for an internal schema or table. Internal ACL checks are always performed *before* using the grant tables. This mechanism enforces that the server implementation has full control on its internal tables. Depending on the internal check result, the server implementation can choose to: - always allow access, - always deny access, - delegate the decision to the database administrator, by using the grant tables. */ enum ACL_internal_access_result { /** Access granted for all the requested privileges, do not use the grant tables. */ ACL_INTERNAL_ACCESS_GRANTED, /** Access denied, do not use the grant tables. */ ACL_INTERNAL_ACCESS_DENIED, /** No decision yet, use the grant tables. */ ACL_INTERNAL_ACCESS_CHECK_GRANT }; /** Per internal table ACL access rules. This class is an interface. Per table(s) specific access rule should be implemented in a subclass. @sa ACL_internal_schema_access */ class ACL_internal_table_access { public: ACL_internal_table_access() = default; virtual ~ACL_internal_table_access() = default; /** Check access to an internal table. When a privilege is granted, this method add the requested privilege to save_priv. @param want_access the privileges requested @param [in, out] save_priv the privileges granted @return @retval ACL_INTERNAL_ACCESS_GRANTED All the requested privileges are granted, and saved in save_priv. @retval ACL_INTERNAL_ACCESS_DENIED At least one of the requested privileges was denied. @retval ACL_INTERNAL_ACCESS_CHECK_GRANT No requested privilege was denied, and grant should be checked for at least one privilege. Requested privileges that are granted, if any, are saved in save_priv. */ virtual ACL_internal_access_result check(privilege_t want_access, privilege_t *save_priv, bool any_combination_will_do) const= 0; }; /** Per internal schema ACL access rules. This class is an interface. Each per schema specific access rule should be implemented in a different subclass, and registered. Per schema access rules can control: - every schema privileges on schema.* - every table privileges on schema.table @sa ACL_internal_schema_registry */ class ACL_internal_schema_access { public: ACL_internal_schema_access() = default; virtual ~ACL_internal_schema_access() = default; /** Check access to an internal schema. @param want_access the privileges requested @param [in, out] save_priv the privileges granted @return @retval ACL_INTERNAL_ACCESS_GRANTED All the requested privileges are granted, and saved in save_priv. @retval ACL_INTERNAL_ACCESS_DENIED At least one of the requested privileges was denied. @retval ACL_INTERNAL_ACCESS_CHECK_GRANT No requested privilege was denied, and grant should be checked for at least one privilege. Requested privileges that are granted, if any, are saved in save_priv. */ virtual ACL_internal_access_result check(privilege_t want_access, privilege_t *save_priv) const= 0; /** Search for per table ACL access rules by table name. @param name the table name @return per table access rules, or NULL */ virtual const ACL_internal_table_access *lookup(const char *name) const= 0; }; /** A registry for per internal schema ACL. An 'internal schema' is a database schema maintained by the server implementation, such as 'performance_schema' and 'INFORMATION_SCHEMA'. */ class ACL_internal_schema_registry { public: static void register_schema(const LEX_CSTRING *name, const ACL_internal_schema_access *access); static const ACL_internal_schema_access *lookup(const char *name); }; const ACL_internal_schema_access * get_cached_schema_access(GRANT_INTERNAL_INFO *grant_internal_info, const char *schema_name); const ACL_internal_table_access * get_cached_table_access(GRANT_INTERNAL_INFO *grant_internal_info, const char *schema_name, const char *table_name); bool acl_check_proxy_grant_access (THD *thd, const char *host, const char *user, bool with_grant); int acl_setrole(THD *thd, const char *rolename, privilege_t access); int acl_check_setrole(THD *thd, const char *rolename, privilege_t *access); int acl_check_set_default_role(THD *thd, const char *host, const char *user, const char *role); int acl_set_default_role(THD *thd, const char *host, const char *user, const char *rolename); extern SHOW_VAR acl_statistics[]; /* Check if a role is granted to a user/role. If hostname == NULL, search for a role as the starting grantee. */ bool check_role_is_granted(const char *username, const char *hostname, const char *rolename); #ifndef DBUG_OFF extern ulong role_global_merges, role_db_merges, role_table_merges, role_column_merges, role_routine_merges; #endif class Sql_cmd_grant: public Sql_cmd { protected: enum_sql_command m_command; #ifndef NO_EMBEDDED_ACCESS_CHECKS void warn_hostname_requires_resolving(THD *thd, List<LEX_USER> &list); bool user_list_reset_mqh(THD *thd, List<LEX_USER> &list); void grant_stage0(THD *thd); #endif public: Sql_cmd_grant(enum_sql_command command) :m_command(command) { } bool is_revoke() const { return m_command == SQLCOM_REVOKE; } enum_sql_command sql_command_code() const override { return m_command; } }; class Sql_cmd_grant_proxy: public Sql_cmd_grant { privilege_t m_grant_option; #ifndef NO_EMBEDDED_ACCESS_CHECKS bool check_access_proxy(THD *thd, List<LEX_USER> &list); #endif public: Sql_cmd_grant_proxy(enum_sql_command command, privilege_t grant_option) :Sql_cmd_grant(command), m_grant_option(grant_option) { } bool execute(THD *thd) override; }; class Sql_cmd_grant_object: public Sql_cmd_grant, public Grant_privilege { protected: #ifndef NO_EMBEDDED_ACCESS_CHECKS bool grant_stage0_exact_object(THD *thd, TABLE_LIST *table); #endif public: Sql_cmd_grant_object(enum_sql_command command, const Grant_privilege &grant) :Sql_cmd_grant(command), Grant_privilege(grant) { } }; class Sql_cmd_grant_table: public Sql_cmd_grant_object { #ifndef NO_EMBEDDED_ACCESS_CHECKS bool execute_table_mask(THD *thd); bool execute_exact_table(THD *thd, TABLE_LIST *table); #endif public: Sql_cmd_grant_table(enum_sql_command command, const Grant_privilege &grant) :Sql_cmd_grant_object(command, grant) { } bool execute(THD *thd) override; }; class Sql_cmd_grant_sp: public Sql_cmd_grant_object { const Sp_handler &m_sph; public: Sql_cmd_grant_sp(enum_sql_command command, const Grant_privilege &grant, const Sp_handler &sph) :Sql_cmd_grant_object(command, grant), m_sph(sph) { } bool execute(THD *thd) override; }; #endif /* SQL_ACL_INCLUDED */
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