Merge bk-internal.mysql.com:/home/bk/mysql-5.0

into  mysql.com:/home/dlenev/src/mysql-5.0-bg11555-2


mysql-test/r/sp-error.result:
  Auto merged
mysql-test/r/view.result:
  Auto merged
mysql-test/t/view.test:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_trigger.h:
  Auto merged
sql/sp.cc:
  Manual merge.
sql/sp.h:
  Manual merge.
sql/sql_base.cc:
  Manual merge.

mysql-test/r/sp-error.result

@@ -1055,3 +1055,43 @@ Db	Name	Type	Definer	Modified	Created	Security_type	Comment
 mysqltest2	p1	PROCEDURE	root@localhost	0000-00-00 00:00:00	0000-00-00 00:00:00	DEFINER	
 drop database mysqltest2;
 use test;
+drop function if exists bug11555_1;
+drop function if exists bug11555_2;
+drop view if exists v1, v2, v3, v4;
+create function bug11555_1() returns int return (select max(i) from t1);
+create function bug11555_2() returns int return bug11555_1();
+create view v1 as select bug11555_1();
+ERROR 42S02: Table 'test.t1' doesn't exist
+create view v2 as select bug11555_2();
+ERROR 42S02: Table 'test.t1' doesn't exist
+create table t1 (i int);
+create view v1 as select bug11555_1();
+create view v2 as select bug11555_2();
+create view v3 as select * from v1;
+drop table t1;
+select * from v1;
+ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+select * from v2;
+ERROR HY000: View 'test.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+select * from v3;
+ERROR HY000: View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+create view v4 as select * from v1;
+ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+drop view v1, v2, v3;
+drop function bug11555_1;
+drop function bug11555_2;
+create table t1 (i int);
+create table t2 (i int);
+create trigger t1_ai after insert on t1 for each row insert into t2 values (new.i);
+create view v1 as select * from t1;
+drop table t2;
+insert into v1 values (1);
+ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+drop trigger t1_ai;
+create function bug11555_1() returns int return (select max(i) from t2);
+create trigger t1_ai after insert on t1 for each row set @a:=bug11555_1();
+insert into v1 values (2);
+ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+drop function bug11555_1;
+drop table t1;
+drop view v1;

mysql-test/r/view.result

@@ -1933,11 +1933,11 @@ create function f1 () returns int return (select max(col1) from t1);
 DROP TABLE t1;
 CHECK TABLE v1, v2, v3, v4, v5, v6;
 Table	Op	Msg_type	Msg_text
-test.v1	check	error	Table 'test.t1' doesn't exist
+test.v1	check	error	View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
 test.v2	check	status	OK
-test.v3	check	error	Table 'test.t1' doesn't exist
+test.v3	check	error	View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
 test.v4	check	status	OK
-test.v5	check	error	Table 'test.t1' doesn't exist
+test.v5	check	error	View 'test.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
 test.v6	check	status	OK
 drop function f1;
 drop function f2;

mysql-test/t/sp-error.test

@@ -1519,6 +1519,67 @@ drop database mysqltest2;
 use test;
 
 
+# BUG#11555 "Stored procedures: current SP tables locking make 
+# impossible view security". We should not expose names of tables
+# which are implicitly used by view (via stored routines/triggers).
+#
+# Note that SQL standard assumes that you simply won't be able drop table
+# and leave some objects (routines/views/triggers) which were depending on
+# it. Such objects should be dropped in advance (by default) or will be
+# dropped simultaneously with table (DROP TABLE with CASCADE clause).
+# So these tests probably should go away once we will implement standard
+# behavior.
+--disable_warnings
+drop function if exists bug11555_1;
+drop function if exists bug11555_2;
+drop view if exists v1, v2, v3, v4;
+--enable_warnings
+create function bug11555_1() returns int return (select max(i) from t1);
+create function bug11555_2() returns int return bug11555_1();
+# It is OK to report name of implicitly used table which is missing
+# when we create view.
+--error ER_NO_SUCH_TABLE
+create view v1 as select bug11555_1();
+--error ER_NO_SUCH_TABLE
+create view v2 as select bug11555_2();
+# But we should hide name of missing implicitly used table when we use view
+create table t1 (i int);
+create view v1 as select bug11555_1();
+create view v2 as select bug11555_2();
+create view v3 as select * from v1;
+drop table t1;
+--error ER_VIEW_INVALID
+select * from v1;
+--error ER_VIEW_INVALID
+select * from v2;
+--error ER_VIEW_INVALID
+select * from v3;
+# Note that creation of view which depends on broken view is yet 
+# another form of view usage.
+--error ER_VIEW_INVALID
+create view v4 as select * from v1;
+drop view v1, v2, v3;
+# We also should hide details about broken triggers which are
+# invoked for view.
+drop function bug11555_1;
+drop function bug11555_2;
+create table t1 (i int);
+create table t2 (i int);
+create trigger t1_ai after insert on t1 for each row insert into t2 values (new.i);
+create view v1 as select * from t1;
+drop table t2;
+--error ER_VIEW_INVALID
+insert into v1 values (1);
+drop trigger t1_ai;
+create function bug11555_1() returns int return (select max(i) from t2);
+create trigger t1_ai after insert on t1 for each row set @a:=bug11555_1();
+--error ER_VIEW_INVALID
+insert into v1 values (2);
+drop function bug11555_1;
+drop table t1;
+drop view v1;
+
+
 # BUG#NNNN: New bug synopsis
 #
 #--disable_warnings

mysql-test/t/view.test

@@ -1744,7 +1744,6 @@ drop function f1;
 CHECK TABLE v1, v2, v3, v4, v5, v6;
 create function f1 () returns int return (select max(col1) from t1);
 DROP TABLE t1;
-# following will show underlying table until BUG#11555 fix
 CHECK TABLE v1, v2, v3, v4, v5, v6;
 drop function f1;
 drop function f2;

sql/sp.cc

@@ -1199,6 +1199,12 @@ struct Sroutine_hash_entry
     for LEX::sroutine/sroutine_list and sp_head::m_sroutines.
   */
   Sroutine_hash_entry *next;
+  /*
+    Uppermost view which directly or indirectly uses this routine.
+    0 if routine is not used in view. Note that it also can be 0 if
+    statement uses routine both via view and directly.
+  */
+  TABLE_LIST *belong_to_view;
 };
 
 
@@ -1253,9 +1259,11 @@ void sp_get_prelocking_info(THD *thd, bool *need_prelocking,
 
   SYNOPSIS
     add_used_routine()
-      lex     - LEX representing statement
-      arena   - arena in which memory for new element will be allocated
-      key     - key for the hash representing set
+      lex             LEX representing statement
+      arena           Arena in which memory for new element will be allocated
+      key             Key for the hash representing set
+      belong_to_view  Uppermost view which uses this routine
+                      (0 if routine is not used by view)
 
   NOTES
     Will also add element to end of 'LEX::sroutines_list' list.
@@ -1278,7 +1286,8 @@ void sp_get_prelocking_info(THD *thd, bool *need_prelocking,
 */
 
 static bool add_used_routine(LEX *lex, Query_arena *arena,
-                             const LEX_STRING *key)
+                             const LEX_STRING *key,
+                             TABLE_LIST *belong_to_view)
 {
   if (!hash_search(&lex->sroutines, (byte *)key->str, key->length))
   {
@@ -1292,6 +1301,7 @@ static bool add_used_routine(LEX *lex, Query_arena *arena,
     memcpy(rn->key.str, key->str, key->length);
     my_hash_insert(&lex->sroutines, (byte *)rn);
     lex->sroutines_list.link_in_list((byte *)rn, (byte **)&rn->next);
+    rn->belong_to_view= belong_to_view;
     return TRUE;
   }
   return FALSE;
@@ -1322,7 +1332,7 @@ void sp_add_used_routine(LEX *lex, Query_arena *arena,
                          sp_name *rt, char rt_type)
 {
   rt->set_routine_type(rt_type);
-  (void)add_used_routine(lex, arena, &rt->m_sroutines_key);
+  (void)add_used_routine(lex, arena, &rt->m_sroutines_key, 0);
   lex->sroutines_list_own_last= lex->sroutines_list.next;
   lex->sroutines_list_own_elements= lex->sroutines_list.elements;
 }
@@ -1392,20 +1402,23 @@ void sp_update_sp_used_routines(HASH *dst, HASH *src)
 
   SYNOPSIS
     sp_update_stmt_used_routines()
-      thd - thread context
-      lex - LEX representing statement
-      src - hash representing set from which routines will be added
+      thd             Thread context
+      lex             LEX representing statement
+      src             Hash representing set from which routines will be added
+      belong_to_view  Uppermost view which uses these routines, 0 if none
 
   NOTE
     It will also add elements to end of 'LEX::sroutines_list' list.
 */
 
-static void sp_update_stmt_used_routines(THD *thd, LEX *lex, HASH *src)
+static void
+sp_update_stmt_used_routines(THD *thd, LEX *lex, HASH *src,
+                             TABLE_LIST *belong_to_view)
 {
   for (uint i=0 ; i < src->records ; i++)
   {
     Sroutine_hash_entry *rt= (Sroutine_hash_entry *)hash_element(src, i);
-    (void)add_used_routine(lex, thd->stmt_arena, &rt->key);
+    (void)add_used_routine(lex, thd->stmt_arena, &rt->key, belong_to_view);
   }
 }
 
@@ -1416,19 +1429,21 @@ static void sp_update_stmt_used_routines(THD *thd, LEX *lex, HASH *src)
 
   SYNOPSIS
     sp_update_stmt_used_routines()
-      thd  Thread context
-      lex  LEX representing statement
-      src  List representing set from which routines will be added
+      thd             Thread context
+      lex             LEX representing statement
+      src             List representing set from which routines will be added
+      belong_to_view  Uppermost view which uses these routines, 0 if none
 
   NOTE
     It will also add elements to end of 'LEX::sroutines_list' list.
 */
 
-static void sp_update_stmt_used_routines(THD *thd, LEX *lex, SQL_LIST *src)
+static void sp_update_stmt_used_routines(THD *thd, LEX *lex, SQL_LIST *src,
+                                         TABLE_LIST *belong_to_view)
 {
   for (Sroutine_hash_entry *rt= (Sroutine_hash_entry *)src->first;
        rt; rt= rt->next)
-    (void)add_used_routine(lex, thd->stmt_arena, &rt->key);
+    (void)add_used_routine(lex, thd->stmt_arena, &rt->key, belong_to_view);
 }
 
 
@@ -1533,9 +1548,11 @@ sp_cache_routines_and_add_tables_aux(THD *thd, LEX *lex,
     {
       if (!(first && first_no_prelock))
       {
-        sp_update_stmt_used_routines(thd, lex, &sp->m_sroutines);
+        sp_update_stmt_used_routines(thd, lex, &sp->m_sroutines,
+                                     rt->belong_to_view);
         tabschnd|=
-          sp->add_used_tables_to_table_list(thd, &lex->query_tables_last);
+          sp->add_used_tables_to_table_list(thd, &lex->query_tables_last,
+                                            rt->belong_to_view);
       }
     }
     first= FALSE;
@@ -1581,21 +1598,22 @@ sp_cache_routines_and_add_tables(THD *thd, LEX *lex, bool first_no_prelock,
 
   SYNOPSIS
     sp_cache_routines_and_add_tables_for_view()
-      thd     - thread context
-      lex     - LEX representing statement
-      aux_lex - LEX representing view
-                         
+      thd   Thread context
+      lex   LEX representing statement
+      view  Table list element representing view
+
   RETURN VALUE
      0     - success
      non-0 - failure
 */
 
 int
-sp_cache_routines_and_add_tables_for_view(THD *thd, LEX *lex, LEX *aux_lex)
+sp_cache_routines_and_add_tables_for_view(THD *thd, LEX *lex, TABLE_LIST *view)
 {
   Sroutine_hash_entry **last_cached_routine_ptr=
                           (Sroutine_hash_entry **)lex->sroutines_list.next;
-  sp_update_stmt_used_routines(thd, lex, &aux_lex->sroutines_list);
+  sp_update_stmt_used_routines(thd, lex, &view->view->sroutines_list,
+                               view->top_table());
   return sp_cache_routines_and_add_tables_aux(thd, lex, 
                                               *last_cached_routine_ptr, FALSE,
                                               NULL);
@@ -1609,9 +1627,9 @@ sp_cache_routines_and_add_tables_for_view(THD *thd, LEX *lex, LEX *aux_lex)
 
   SYNOPSIS
     sp_cache_routines_and_add_tables_for_triggers()
-      thd      - thread context
-      lex      - LEX respresenting statement
-      triggers - triggers of the table
+      thd    thread context
+      lex    LEX respresenting statement
+      table  Table list element for table with trigger
 
   RETURN VALUE
      0     - success
@@ -1620,11 +1638,12 @@ sp_cache_routines_and_add_tables_for_view(THD *thd, LEX *lex, LEX *aux_lex)
 
 int
 sp_cache_routines_and_add_tables_for_triggers(THD *thd, LEX *lex,
-                                              Table_triggers_list *triggers)
+                                              TABLE_LIST *table)
 {
   int ret= 0;
-
-  if (add_used_routine(lex, thd->stmt_arena, &triggers->sroutines_key))
+  Table_triggers_list *triggers= table->table->triggers;
+  if (add_used_routine(lex, thd->stmt_arena, &triggers->sroutines_key,
+                       table->belong_to_view))
   {
     Sroutine_hash_entry **last_cached_routine_ptr=
                             (Sroutine_hash_entry **)lex->sroutines_list.next;
@@ -1634,10 +1653,12 @@ sp_cache_routines_and_add_tables_for_triggers(THD *thd, LEX *lex,
       {
         if (triggers->bodies[i][j])
         {
-          (void)triggers->bodies[i][j]->add_used_tables_to_table_list(thd,
-                                          &lex->query_tables_last);
+          (void)triggers->bodies[i][j]->
+                add_used_tables_to_table_list(thd, &lex->query_tables_last,
+                                              table->belong_to_view);
           sp_update_stmt_used_routines(thd, lex,
-                                       &triggers->bodies[i][j]->m_sroutines);
+                                       &triggers->bodies[i][j]->m_sroutines,
+                                       table->belong_to_view);
         }
       }
     }

sql/sp.h

@@ -84,12 +84,13 @@ void sp_add_used_routine(LEX *lex, Query_arena *arena,
                          sp_name *rt, char rt_type);
 void sp_remove_not_own_routines(LEX *lex);
 void sp_update_sp_used_routines(HASH *dst, HASH *src);
-int sp_cache_routines_and_add_tables(THD *thd, LEX *lex, 
-                                     bool first_no_prelock, bool *tabs_changed);
+int sp_cache_routines_and_add_tables(THD *thd, LEX *lex,
+                                     bool first_no_prelock,
+                                     bool *tabs_changed);
 int sp_cache_routines_and_add_tables_for_view(THD *thd, LEX *lex,
-                                              LEX *aux_lex);
+                                              TABLE_LIST *view);
 int sp_cache_routines_and_add_tables_for_triggers(THD *thd, LEX *lex,
-                                         Table_triggers_list *triggers);
+                                                  TABLE_LIST *table);
 
 extern "C" byte* sp_sroutine_key(const byte *ptr, uint *plen, my_bool first);
 

sql/sp_head.cc

@@ -3126,10 +3126,12 @@ sp_head::merge_table_list(THD *thd, TABLE_LIST *table, LEX *lex_for_tmp_check)
 
   SYNOPSIS
     add_used_tables_to_table_list()
-      thd                   - thread context
-      query_tables_last_ptr - (in/out) pointer the next_global member of last
-                              element of the list where tables will be added
-                              (or to its root).
+      thd                    [in]     Thread context
+      query_tables_last_ptr  [in/out] Pointer to the next_global member of
+                                      last element of the list where tables
+                                      will be added (or to its root).
+      belong_to_view         [in]     Uppermost view which uses this routine,
+                                      0 if none.
 
   DESCRIPTION
     Converts multi-set of tables used by this routine to table list and adds
@@ -3144,7 +3146,8 @@ sp_head::merge_table_list(THD *thd, TABLE_LIST *table, LEX *lex_for_tmp_check)
 
 bool
 sp_head::add_used_tables_to_table_list(THD *thd,
-                                       TABLE_LIST ***query_tables_last_ptr)
+                                       TABLE_LIST ***query_tables_last_ptr,
+                                       TABLE_LIST *belong_to_view)
 {
   uint i;
   Query_arena *arena, backup;
@@ -3187,6 +3190,7 @@ sp_head::add_used_tables_to_table_list(THD *thd,
       table->lock_type= stab->lock_type;
       table->cacheable_table= 1;
       table->prelocking_placeholder= 1;
+      table->belong_to_view= belong_to_view;
 
       /* Everyting else should be zeroed */
 

sql/sp_head.h

@@ -308,7 +308,8 @@ class sp_head :private Query_arena
 
   /* Add tables used by routine to the table list. */
   bool add_used_tables_to_table_list(THD *thd,
-                                     TABLE_LIST ***query_tables_last_ptr);
+                                     TABLE_LIST ***query_tables_last_ptr,
+                                     TABLE_LIST *belong_to_view);
 
   /*
     Check if this stored routine contains statements disallowed

sql/sql_base.cc

@@ -2128,7 +2128,7 @@ int open_tables(THD *thd, TABLE_LIST **start, uint *counter, uint flags)
         if (!query_tables_last_own)
           query_tables_last_own= thd->lex->query_tables_last;
         if (sp_cache_routines_and_add_tables_for_triggers(thd, thd->lex,
-                                                   tables->table->triggers))
+                                                          tables))
         {
           /*
             Serious error during reading stored routines from mysql.proc table.
@@ -2158,8 +2158,7 @@ int open_tables(THD *thd, TABLE_LIST **start, uint *counter, uint flags)
       /* We have at least one table in TL here. */
       if (!query_tables_last_own)
         query_tables_last_own= thd->lex->query_tables_last;
-      if (sp_cache_routines_and_add_tables_for_view(thd, thd->lex,
-                                                    tables->view))
+      if (sp_cache_routines_and_add_tables_for_view(thd, thd->lex, tables))
       {
         /*
           Serious error during reading stored routines from mysql.proc table.

sql/sql_trigger.h

@@ -118,7 +118,7 @@ class Table_triggers_list: public Sql_alloc
 
   friend class Item_trigger_field;
   friend int sp_cache_routines_and_add_tables_for_triggers(THD *thd, LEX *lex,
-                Table_triggers_list *triggers);
+                                                            TABLE_LIST *table);
 
 private:
   bool prepare_record1_accessors(TABLE *table);