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279 lines
10 KiB
C++
279 lines
10 KiB
C++
#ifndef SQL_ACL_INCLUDED
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#define SQL_ACL_INCLUDED
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/* Copyright (C) 2000-2006 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "slave.h" // for tables_ok(), rpl_filter
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#define SELECT_ACL (1L << 0)
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#define INSERT_ACL (1L << 1)
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#define UPDATE_ACL (1L << 2)
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#define DELETE_ACL (1L << 3)
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#define CREATE_ACL (1L << 4)
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#define DROP_ACL (1L << 5)
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#define RELOAD_ACL (1L << 6)
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#define SHUTDOWN_ACL (1L << 7)
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#define PROCESS_ACL (1L << 8)
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#define FILE_ACL (1L << 9)
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#define GRANT_ACL (1L << 10)
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#define REFERENCES_ACL (1L << 11)
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#define INDEX_ACL (1L << 12)
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#define ALTER_ACL (1L << 13)
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#define SHOW_DB_ACL (1L << 14)
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#define SUPER_ACL (1L << 15)
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#define CREATE_TMP_ACL (1L << 16)
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#define LOCK_TABLES_ACL (1L << 17)
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#define EXECUTE_ACL (1L << 18)
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#define REPL_SLAVE_ACL (1L << 19)
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#define REPL_CLIENT_ACL (1L << 20)
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#define CREATE_VIEW_ACL (1L << 21)
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#define SHOW_VIEW_ACL (1L << 22)
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#define CREATE_PROC_ACL (1L << 23)
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#define ALTER_PROC_ACL (1L << 24)
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#define CREATE_USER_ACL (1L << 25)
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#define EVENT_ACL (1L << 26)
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#define TRIGGER_ACL (1L << 27)
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/*
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don't forget to update
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1. static struct show_privileges_st sys_privileges[]
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2. static const char *command_array[] and static uint command_lengths[]
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3. mysql_system_tables.sql and mysql_system_tables_fix.sql
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4. acl_init() or whatever - to define behaviour for old privilege tables
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5. sql_yacc.yy - for GRANT/REVOKE to work
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*/
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#define EXTRA_ACL (1L << 29)
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#define NO_ACCESS (1L << 30)
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#define DB_ACLS \
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(UPDATE_ACL | SELECT_ACL | INSERT_ACL | DELETE_ACL | CREATE_ACL | DROP_ACL | \
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GRANT_ACL | REFERENCES_ACL | INDEX_ACL | ALTER_ACL | CREATE_TMP_ACL | \
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LOCK_TABLES_ACL | EXECUTE_ACL | CREATE_VIEW_ACL | SHOW_VIEW_ACL | \
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CREATE_PROC_ACL | ALTER_PROC_ACL | EVENT_ACL | TRIGGER_ACL)
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#define TABLE_ACLS \
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(SELECT_ACL | INSERT_ACL | UPDATE_ACL | DELETE_ACL | CREATE_ACL | DROP_ACL | \
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GRANT_ACL | REFERENCES_ACL | INDEX_ACL | ALTER_ACL | CREATE_VIEW_ACL | \
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SHOW_VIEW_ACL | TRIGGER_ACL)
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#define COL_ACLS \
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(SELECT_ACL | INSERT_ACL | UPDATE_ACL | REFERENCES_ACL)
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#define PROC_ACLS \
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(ALTER_PROC_ACL | EXECUTE_ACL | GRANT_ACL)
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#define SHOW_PROC_ACLS \
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(ALTER_PROC_ACL | EXECUTE_ACL | CREATE_PROC_ACL)
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#define GLOBAL_ACLS \
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(SELECT_ACL | INSERT_ACL | UPDATE_ACL | DELETE_ACL | CREATE_ACL | DROP_ACL | \
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RELOAD_ACL | SHUTDOWN_ACL | PROCESS_ACL | FILE_ACL | GRANT_ACL | \
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REFERENCES_ACL | INDEX_ACL | ALTER_ACL | SHOW_DB_ACL | SUPER_ACL | \
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CREATE_TMP_ACL | LOCK_TABLES_ACL | REPL_SLAVE_ACL | REPL_CLIENT_ACL | \
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EXECUTE_ACL | CREATE_VIEW_ACL | SHOW_VIEW_ACL | CREATE_PROC_ACL | \
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ALTER_PROC_ACL | CREATE_USER_ACL | EVENT_ACL | TRIGGER_ACL)
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#define DEFAULT_CREATE_PROC_ACLS \
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(ALTER_PROC_ACL | EXECUTE_ACL)
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/*
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Defines to change the above bits to how things are stored in tables
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This is needed as the 'host' and 'db' table is missing a few privileges
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*/
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/* Privileges that needs to be reallocated (in continous chunks) */
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#define DB_CHUNK0 (SELECT_ACL | INSERT_ACL | UPDATE_ACL | DELETE_ACL | \
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CREATE_ACL | DROP_ACL)
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#define DB_CHUNK1 (GRANT_ACL | REFERENCES_ACL | INDEX_ACL | ALTER_ACL)
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#define DB_CHUNK2 (CREATE_TMP_ACL | LOCK_TABLES_ACL)
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#define DB_CHUNK3 (CREATE_VIEW_ACL | SHOW_VIEW_ACL | \
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CREATE_PROC_ACL | ALTER_PROC_ACL )
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#define DB_CHUNK4 (EXECUTE_ACL)
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#define DB_CHUNK5 (EVENT_ACL | TRIGGER_ACL)
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#define fix_rights_for_db(A) (((A) & DB_CHUNK0) | \
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(((A) << 4) & DB_CHUNK1) | \
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(((A) << 6) & DB_CHUNK2) | \
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(((A) << 9) & DB_CHUNK3) | \
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(((A) << 2) & DB_CHUNK4))| \
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(((A) << 9) & DB_CHUNK5)
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#define get_rights_for_db(A) (((A) & DB_CHUNK0) | \
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(((A) & DB_CHUNK1) >> 4) | \
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(((A) & DB_CHUNK2) >> 6) | \
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(((A) & DB_CHUNK3) >> 9) | \
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(((A) & DB_CHUNK4) >> 2))| \
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(((A) & DB_CHUNK5) >> 9)
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#define TBL_CHUNK0 DB_CHUNK0
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#define TBL_CHUNK1 DB_CHUNK1
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#define TBL_CHUNK2 (CREATE_VIEW_ACL | SHOW_VIEW_ACL)
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#define TBL_CHUNK3 TRIGGER_ACL
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#define fix_rights_for_table(A) (((A) & TBL_CHUNK0) | \
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(((A) << 4) & TBL_CHUNK1) | \
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(((A) << 11) & TBL_CHUNK2) | \
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(((A) << 15) & TBL_CHUNK3))
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#define get_rights_for_table(A) (((A) & TBL_CHUNK0) | \
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(((A) & TBL_CHUNK1) >> 4) | \
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(((A) & TBL_CHUNK2) >> 11) | \
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(((A) & TBL_CHUNK3) >> 15))
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#define fix_rights_for_column(A) (((A) & 7) | (((A) & ~7) << 8))
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#define get_rights_for_column(A) (((A) & 7) | ((A) >> 8))
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#define fix_rights_for_procedure(A) ((((A) << 18) & EXECUTE_ACL) | \
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(((A) << 23) & ALTER_PROC_ACL) | \
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(((A) << 8) & GRANT_ACL))
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#define get_rights_for_procedure(A) ((((A) & EXECUTE_ACL) >> 18) | \
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(((A) & ALTER_PROC_ACL) >> 23) | \
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(((A) & GRANT_ACL) >> 8))
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enum mysql_db_table_field
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{
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MYSQL_DB_FIELD_HOST = 0,
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MYSQL_DB_FIELD_DB,
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MYSQL_DB_FIELD_USER,
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MYSQL_DB_FIELD_SELECT_PRIV,
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MYSQL_DB_FIELD_INSERT_PRIV,
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MYSQL_DB_FIELD_UPDATE_PRIV,
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MYSQL_DB_FIELD_DELETE_PRIV,
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MYSQL_DB_FIELD_CREATE_PRIV,
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MYSQL_DB_FIELD_DROP_PRIV,
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MYSQL_DB_FIELD_GRANT_PRIV,
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MYSQL_DB_FIELD_REFERENCES_PRIV,
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MYSQL_DB_FIELD_INDEX_PRIV,
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MYSQL_DB_FIELD_ALTER_PRIV,
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MYSQL_DB_FIELD_CREATE_TMP_TABLE_PRIV,
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MYSQL_DB_FIELD_LOCK_TABLES_PRIV,
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MYSQL_DB_FIELD_CREATE_VIEW_PRIV,
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MYSQL_DB_FIELD_SHOW_VIEW_PRIV,
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MYSQL_DB_FIELD_CREATE_ROUTINE_PRIV,
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MYSQL_DB_FIELD_ALTER_ROUTINE_PRIV,
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MYSQL_DB_FIELD_EXECUTE_PRIV,
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MYSQL_DB_FIELD_EVENT_PRIV,
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MYSQL_DB_FIELD_TRIGGER_PRIV,
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MYSQL_DB_FIELD_COUNT
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};
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extern TABLE_FIELD_W_TYPE mysql_db_table_fields[];
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extern time_t mysql_db_table_last_check;
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/* Classes */
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struct acl_host_and_ip
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{
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char *hostname;
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long ip,ip_mask; // Used with masked ip:s
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};
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class ACL_ACCESS {
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public:
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ulong sort;
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ulong access;
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};
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/* ACL_HOST is used if no host is specified */
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class ACL_HOST :public ACL_ACCESS
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{
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public:
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acl_host_and_ip host;
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char *db;
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};
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class ACL_USER :public ACL_ACCESS
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{
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public:
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acl_host_and_ip host;
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uint hostname_length;
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USER_RESOURCES user_resource;
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char *user;
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uint8 salt[SCRAMBLE_LENGTH+1]; // scrambled password in binary form
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uint8 salt_len; // 0 - no password, 4 - 3.20, 8 - 3.23, 20 - 4.1.1
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enum SSL_type ssl_type;
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const char *ssl_cipher, *x509_issuer, *x509_subject;
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};
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class ACL_DB :public ACL_ACCESS
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{
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public:
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acl_host_and_ip host;
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char *user,*db;
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};
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/* prototypes */
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bool hostname_requires_resolving(const char *hostname);
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my_bool acl_init(bool dont_read_acl_tables);
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my_bool acl_reload(THD *thd);
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void acl_free(bool end=0);
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ulong acl_get(const char *host, const char *ip,
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const char *user, const char *db, my_bool db_is_pattern);
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int acl_getroot(THD *thd, USER_RESOURCES *mqh, const char *passwd,
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uint passwd_len);
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bool acl_getroot_no_password(Security_context *sctx, char *user, char *host,
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char *ip, char *db);
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bool acl_check_host(const char *host, const char *ip);
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int check_change_password(THD *thd, const char *host, const char *user,
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char *password, uint password_len);
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bool change_password(THD *thd, const char *host, const char *user,
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char *password);
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bool mysql_grant(THD *thd, const char *db, List <LEX_USER> &user_list,
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ulong rights, bool revoke);
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int mysql_table_grant(THD *thd, TABLE_LIST *table, List <LEX_USER> &user_list,
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List <LEX_COLUMN> &column_list, ulong rights,
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bool revoke);
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bool mysql_routine_grant(THD *thd, TABLE_LIST *table, bool is_proc,
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List <LEX_USER> &user_list, ulong rights,
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bool revoke, bool write_to_binlog);
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my_bool grant_init();
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void grant_free(void);
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my_bool grant_reload(THD *thd);
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bool check_grant(THD *thd, ulong want_access, TABLE_LIST *tables,
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uint show_command, uint number, bool dont_print_error);
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bool check_grant_column (THD *thd, GRANT_INFO *grant,
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const char *db_name, const char *table_name,
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const char *name, uint length, Security_context *sctx);
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bool check_column_grant_in_table_ref(THD *thd, TABLE_LIST * table_ref,
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const char *name, uint length);
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bool check_grant_all_columns(THD *thd, ulong want_access,
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Field_iterator_table_ref *fields);
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bool check_grant_routine(THD *thd, ulong want_access,
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TABLE_LIST *procs, bool is_proc, bool no_error);
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bool check_grant_db(THD *thd,const char *db);
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ulong get_table_grant(THD *thd, TABLE_LIST *table);
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ulong get_column_grant(THD *thd, GRANT_INFO *grant,
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const char *db_name, const char *table_name,
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const char *field_name);
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bool mysql_show_grants(THD *thd, LEX_USER *user);
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void get_privilege_desc(char *to, uint max_length, ulong access);
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void get_mqh(const char *user, const char *host, USER_CONN *uc);
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bool mysql_create_user(THD *thd, List <LEX_USER> &list);
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bool mysql_drop_user(THD *thd, List <LEX_USER> &list);
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bool mysql_rename_user(THD *thd, List <LEX_USER> &list);
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bool mysql_revoke_all(THD *thd, List <LEX_USER> &list);
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void fill_effective_table_privileges(THD *thd, GRANT_INFO *grant,
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const char *db, const char *table);
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bool sp_revoke_privileges(THD *thd, const char *sp_db, const char *sp_name,
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bool is_proc);
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bool sp_grant_privileges(THD *thd, const char *sp_db, const char *sp_name,
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bool is_proc);
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bool check_routine_level_acl(THD *thd, const char *db, const char *name,
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bool is_proc);
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bool is_acl_user(const char *host, const char *user);
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#ifdef NO_EMBEDDED_ACCESS_CHECKS
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#define check_grant(A,B,C,D,E,F) 0
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#define check_grant_db(A,B) 0
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#endif
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#endif /* SQL_ACL_INCLUDED */
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