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Bug #20482: failure on Create join view with sources views/tables in different

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schemas
The function check_one_table_access() called to check access to tables in 
SELECT/INSERT/UPDATE was doing additional checks/modifications that don't hold
in the context of setup_tables_and_check_access().
That's why the check_one_table() was split into two : the functionality needed by
setup_tables_and_check_access() into check_single_table_access() and the rest of 
the functionality stays in check_one_table_access() that is made to call the new
check_single_table_access() function.
This commit is contained in:
gkodinov@mysql.com
2006-06-21 12:12:46 +03:00
parent ee2e2d0c6d
commit 75ca055493
5 changed files with 67 additions and 10 deletions
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40
sql/sql_parse.cc
View File

@ -4978,11 +4978,10 @@ error:
/*
Check grants for commands which work only with one table and all other
tables belonging to subselects or implicitly opened tables.
Check grants for commands which work only with one table.
SYNOPSIS
check_one_table_access()
check_single_table_access()
thd Thread handler
privilege requested privilege
all_tables global table list of query
@ -4992,7 +4991,8 @@ error:
1 - access denied, error is sent to client
*/
bool check_one_table_access(THD *thd, ulong privilege, TABLE_LIST *all_tables)
bool check_single_table_access(THD *thd, ulong privilege,
TABLE_LIST *all_tables)
{
Security_context * backup_ctx= thd->security_ctx;
@ -5010,19 +5010,41 @@ bool check_one_table_access(THD *thd, ulong privilege, TABLE_LIST *all_tables)
goto deny;
thd->security_ctx= backup_ctx;
return 0;
deny:
thd->security_ctx= backup_ctx;
return 1;
}
/*
Check grants for commands which work only with one table and all other
tables belonging to subselects or implicitly opened tables.
SYNOPSIS
check_one_table_access()
thd Thread handler
privilege requested privilege
all_tables global table list of query
RETURN
0 - OK
1 - access denied, error is sent to client
*/
bool check_one_table_access(THD *thd, ulong privilege, TABLE_LIST *all_tables)
{
if (check_single_table_access (thd,privilege,all_tables))
return 1;
/* Check rights on tables of subselects and implictly opened tables */
TABLE_LIST *subselects_tables;
if ((subselects_tables= all_tables->next_global))
{
if ((check_table_access(thd, SELECT_ACL, subselects_tables, 0)))
goto deny;
return 1;
}
return 0;
deny:
thd->security_ctx= backup_ctx;
return 1;
}