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MDEV-14853 Grant does not work correctly when table contains...

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SYSTEM_INVISIBLE or COMPLETELY_INVISIBLE

This commit does multiple things to solve this mdev
1st add field into the parameter of check_column_grant_in_table_ref, so that
we can find out field invisibility.
2nd If field->invisible >= INVISIBLE_SYSTEM skip access check and simple
grant access.
This commit is contained in:
sachin
2018-05-15 14:01:24 +05:30
committed by sachin
parent ff0e9b2fce
commit 395c8ca708
8 changed files with 263 additions and 8 deletions
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4
sql/sql_base.cc
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@ -5877,7 +5877,7 @@ find_field_in_table_ref(THD *thd, TABLE_LIST *table_list,
#ifndef NO_EMBEDDED_ACCESS_CHECKS
/* Check if there are sufficient access rights to the found field. */
if (check_privileges &&
check_column_grant_in_table_ref(thd, *actual_table, name, length))
check_column_grant_in_table_ref(thd, *actual_table, name, length, fld))
fld= WRONG_GRANT;
else
#endif
@ -6054,7 +6054,7 @@ find_field_in_tables(THD *thd, Item_ident *item,
#ifndef NO_EMBEDDED_ACCESS_CHECKS
/* Check if there are sufficient access rights to the found field. */
if (found && check_privileges &&
check_column_grant_in_table_ref(thd, table_ref, name, length))
check_column_grant_in_table_ref(thd, table_ref, name, length, found))
found= WRONG_GRANT;
#endif
}