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sepgsql: Enforce db_procedure:{execute} permission. 

To do this, we add an additional object access hook type,
OAT_FUNCTION_EXECUTE.

KaiGai Kohei
This commit is contained in:
Robert Haas 2013-04-12 08:55:56 -04:00
parent d017bf41a3
commit f8a54e936b
16 changed files with 220 additions and 21 deletions
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17
contrib/sepgsql/expected/label.out
View File

@ -131,23 +131,40 @@ SELECT sepgsql_getcon(); -- confirm client privilege
unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0
(1 row)
SET sepgsql.debug_audit = true;
SET client_min_messages = log;
SELECT f1(); -- normal procedure
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=unconfined_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function f1()"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function sepgsql_getcon()"
CONTEXT: SQL function "f1" statement 1
f1
-----------------------------------------------------
unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0
(1 row)
SELECT f2(); -- trusted procedure
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_trusted_proc_exec_t:s0 tclass=db_procedure name="function f2()"
LOG: SELinux: allowed { entrypoint } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_trusted_proc_exec_t:s0 tclass=db_procedure name="function f2()"
LOG: SELinux: allowed { transition } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=unconfined_u:unconfined_r:sepgsql_trusted_proc_t:s0 tclass=process
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_trusted_proc_t:s0 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function sepgsql_getcon()"
CONTEXT: SQL function "f2" statement 1
f2
-----------------------------------------------------
unconfined_u:unconfined_r:sepgsql_trusted_proc_t:s0
(1 row)
SELECT f3(); -- trusted procedure that raises an error
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_trusted_proc_exec_t:s0 tclass=db_procedure name="function f3()"
LOG: SELinux: allowed { entrypoint } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_trusted_proc_exec_t:s0 tclass=db_procedure name="function f3()"
LOG: SELinux: allowed { transition } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=unconfined_u:unconfined_r:sepgsql_trusted_proc_t:s0 tclass=process
ERROR: an exception from f3()
SELECT f4(); -- failed on domain transition
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_nosuch_trusted_proc_exec_t:s0 tclass=db_procedure name="function f4()"
LOG: SELinux: allowed { entrypoint } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_nosuch_trusted_proc_exec_t:s0 tclass=db_procedure name="function f4()"
LOG: SELinux: denied { transition } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=unconfined_u:unconfined_r:sepgsql_regtest_nosuch_t:s0 tclass=process
ERROR: SELinux: security policy violation
SELECT sepgsql_getcon(); -- client's label must be restored
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function sepgsql_getcon()"
sepgsql_getcon
-----------------------------------------------------
unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0

67
contrib/sepgsql/expected/misc.out
View File

@ -3,3 +3,70 @@
--
LOAD '$libdir/sepgsql'; -- failed
ERROR: SELinux: LOAD is not permitted
--
-- Permissions to execute functions
--
CREATE TABLE t1 (x int, y text);
INSERT INTO t1 (SELECT x, md5(x::text) FROM generate_series(1,100) x);
SET sepgsql.debug_audit = on;
SET client_min_messages = log;
-- regular function and operators
SELECT * FROM t1 WHERE x > 50 AND y like '%64%';
LOG: SELinux: allowed { select } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:sepgsql_table_t:s0 tclass=db_table name="public.t1"
LOG: SELinux: allowed { select } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:sepgsql_table_t:s0 tclass=db_column name="table t1 column x"
LOG: SELinux: allowed { select } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:sepgsql_table_t:s0 tclass=db_column name="table t1 column y"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function int4gt(integer,integer)"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function textlike(text,text)"
x | y
-----+----------------------------------
77 | 28dd2c7955ce926456240b2ff0100bde
89 | 7647966b7343c29048673252e490f736
90 | 8613985ec49eb8f757ae6439e879bb2a
91 | 54229abfcfa5649e7003b83dd4755294
99 | ac627ab1ccbdb62ec96e702f07f6425b
100 | f899139df5e1059396431415e770c6dd
(6 rows)
-- aggregate function
SELECT MIN(x), AVG(x) FROM t1;
LOG: SELinux: allowed { select } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:sepgsql_table_t:s0 tclass=db_table name="public.t1"
LOG: SELinux: allowed { select } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:sepgsql_table_t:s0 tclass=db_column name="table t1 column x"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function avg(integer)"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function int4_avg_accum(bigint[],integer)"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function int8_avg(bigint[])"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function min(integer)"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function int4smaller(integer,integer)"
min | avg
-----+---------------------
1 | 50.5000000000000000
(1 row)
-- window function
SELECT row_number() OVER (order by x), * FROM t1 WHERE y like '%86%';
LOG: SELinux: allowed { select } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:sepgsql_table_t:s0 tclass=db_table name="public.t1"
LOG: SELinux: allowed { select } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:sepgsql_table_t:s0 tclass=db_column name="table t1 column x"
LOG: SELinux: allowed { select } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:sepgsql_table_t:s0 tclass=db_column name="table t1 column y"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function row_number()"
LOG: SELinux: allowed { execute } scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sepgsql_proc_exec_t:s0 tclass=db_procedure name="function textlike(text,text)"
row_number | x | y
------------+----+----------------------------------
1 | 2 | c81e728d9d4c2f636f067f89cc14862c
2 | 17 | 70efdf2ec9b086079795c442636b55fb
3 | 22 | b6d767d2f8ed5d21a44b0e5886680cb9
4 | 27 | 02e74f10e0327ad868d138f2b4fdd6f0
5 | 33 | 182be0c5cdcd5072bb1864cdee4d3d6e
6 | 43 | 17e62166fc8586dfa4d1bc0e1742c08b
7 | 54 | a684eceee76fc522773286a895bc8436
8 | 73 | d2ddea18f00665ce8623e36bd4e3c7c5
9 | 76 | fbd7939d674997cdb4692d34de8633c4
10 | 89 | 7647966b7343c29048673252e490f736
11 | 90 | 8613985ec49eb8f757ae6439e879bb2a
12 | 94 | f4b9ec30ad9f68f89b29639786cb62ef
(12 rows)
RESET sepgsql.debug_audit;
RESET client_min_messages;
--
-- Cleanup
--
DROP TABLE IF EXISTS t1 CASCADE;

7
contrib/sepgsql/hooks.c
View File

@ -255,6 +255,13 @@ sepgsql_object_access(ObjectAccessType access,
}
break;
case OAT_FUNCTION_EXECUTE:
{
Assert(classId == ProcedureRelationId);
sepgsql_proc_execute(objectId);
}
break;
default:
elog(ERROR, "unexpected object access type: %d", (int) access);
break;

23
contrib/sepgsql/label.c
View File

@ -303,7 +303,8 @@ sepgsql_needs_fmgr_hook(Oid functionId)
object.objectSubId = 0;
if (!sepgsql_avc_check_perms(&object,
SEPG_CLASS_DB_PROCEDURE,
SEPG_DB_PROCEDURE__EXECUTE,
SEPG_DB_PROCEDURE__EXECUTE |
SEPG_DB_PROCEDURE__ENTRYPOINT,
SEPGSQL_AVC_NOAUDIT, false))
return true;
@ -347,13 +348,31 @@ sepgsql_fmgr_hook(FmgrHookEventType event,
* process:transition permission between old and new label,
* when user tries to switch security label of the client on
* execution of trusted procedure.
*
* Also, db_procedure:entrypoint permission should be checked
* whether this procedure can perform as an entrypoint of the
* trusted procedure, or not.
* Note that db_procedure:execute permission shall be checked
* individually.
*/
if (stack->new_label)
{
ObjectAddress object;
object.classId = ProcedureRelationId;
object.objectId = flinfo->fn_oid;
object.objectSubId = 0;
sepgsql_avc_check_perms(&object,
SEPG_CLASS_DB_PROCEDURE,
SEPG_DB_PROCEDURE__ENTRYPOINT,
getObjectDescription(&object),
true);
sepgsql_avc_check_perms_label(stack->new_label,
SEPG_CLASS_PROCESS,
SEPG_PROCESS__TRANSITION,
NULL, true);
}
*private = PointerGetDatum(stack);
}
Assert(!stack->old_label);

26
contrib/sepgsql/proc.c
View File

@ -307,3 +307,29 @@ sepgsql_proc_setattr(Oid functionId)
systable_endscan(sscan);
heap_close(rel, AccessShareLock);
}
/*
* sepgsql_proc_execute
*
* It checks privileges to execute the supplied function
*/
void
sepgsql_proc_execute(Oid functionId)
{
ObjectAddress object;
char *audit_name;
/*
* check db_procedure:{execute} permission
*/
object.classId = ProcedureRelationId;
object.objectId = functionId;
object.objectSubId = 0;
audit_name = getObjectDescription(&object);
sepgsql_avc_check_perms(&object,
SEPG_CLASS_DB_PROCEDURE,
SEPG_DB_PROCEDURE__EXECUTE,
audit_name,
true);
pfree(audit_name);
}

23
contrib/sepgsql/sepgsql-regtest.te
View File

@ -1,4 +1,4 @@
policy_module(sepgsql-regtest, 1.06)
policy_module(sepgsql-regtest, 1.07)
gen_require(`
all_userspace_class_perms
@ -172,25 +172,14 @@ optional_policy(`
#
# Rule to execute original trusted procedures
#
# XXX - sepgsql_client_type contains any valid client types, so we allow
# them to execute the original trusted procedure at once.
# These rules intends to allow any valid client types to launch trusted-
# procedures (including ones causes domain transition to invalid domain)
# being labeled as sepgsql_regtest_trusted_proc_exec_t and
# sepgsql_nosuch_trusted_proc_exec_t.
#
optional_policy(`
gen_require(`
attribute sepgsql_client_type;
')
allow sepgsql_client_type { sepgsql_regtest_trusted_proc_exec_t sepgsql_nosuch_trusted_proc_exec_t }:db_procedure { getattr execute };
# These rules intends sepgsql_regtest_user_t domain to translate
# sepgsql_regtest_dba_t on execution of procedures labeled as
# sepgsql_regtest_trusted_proc_exec_t.
#
# allow sepgsql_client_type sepgsql_regtest_trusted_proc_exec_t:db_procedure { getattr execute };
# These rules intends sepgsql_regtest_user_t domain to translate
# sepgsql_regtest_nosuch_t on execution of procedures labeled as
# sepgsql_nosuch_trusted_proc_exec_t, without permissions to
# translate to sepgsql_nosuch_trusted_proc_exec_t.
#
# allow sepgsql_client_type sepgsql_nosuch_trusted_proc_exec_t:db_procedure { getattr execute install };
allow sepgsql_client_type { sepgsql_regtest_trusted_proc_exec_t sepgsql_nosuch_trusted_proc_exec_t }:db_procedure { getattr execute entrypoint };
')

1
contrib/sepgsql/sepgsql.h
View File

@ -328,5 +328,6 @@ extern void sepgsql_proc_post_create(Oid functionId);
extern void sepgsql_proc_drop(Oid functionId);
extern void sepgsql_proc_relabel(Oid functionId, const char *seclabel);
extern void sepgsql_proc_setattr(Oid functionId);
extern void sepgsql_proc_execute(Oid functionId);
#endif /* SEPGSQL_H */

2
contrib/sepgsql/sql/label.sql
View File

@ -97,6 +97,8 @@ SECURITY LABEL ON COLUMN t2.b
-- Tests for Trusted Procedures
--
-- @SECURITY-CONTEXT=unconfined_u:unconfined_r:sepgsql_regtest_user_t:s0
SET sepgsql.debug_audit = true;
SET client_min_messages = log;
SELECT f1(); -- normal procedure
SELECT f2(); -- trusted procedure
SELECT f3(); -- trusted procedure that raises an error

25
contrib/sepgsql/sql/misc.sql
View File

@ -3,3 +3,28 @@
--
LOAD '$libdir/sepgsql'; -- failed
--
-- Permissions to execute functions
--
CREATE TABLE t1 (x int, y text);
INSERT INTO t1 (SELECT x, md5(x::text) FROM generate_series(1,100) x);
SET sepgsql.debug_audit = on;
SET client_min_messages = log;
-- regular function and operators
SELECT * FROM t1 WHERE x > 50 AND y like '%64%';
-- aggregate function
SELECT MIN(x), AVG(x) FROM t1;
-- window function
SELECT row_number() OVER (order by x), * FROM t1 WHERE y like '%86%';
RESET sepgsql.debug_audit;
RESET client_min_messages;
--
-- Cleanup
--
DROP TABLE IF EXISTS t1 CASCADE;

7
doc/src/sgml/sepgsql.sgml
View File

@ -393,8 +393,11 @@ UPDATE t1 SET x = 2, y = md5sum(y) WHERE z = 100;
</para>
<para>
For functions, <literal>db_procedure:{execute}</> is defined, but is not
checked in this version.
For functions, <literal>db_procedure:{execute}</> will be checked when
user tries to execute a function as a part of query, or using fast-path
invocation. If this function is a trusted procedure, it also checks
<literal>db_procedure:{entrypoint}</> permission to check whether it
can perform as entrypoint of trusted procedure.
</para>
<para>

17
src/backend/catalog/objectaccess.c
View File

@ -12,6 +12,7 @@
#include "catalog/objectaccess.h"
#include "catalog/pg_namespace.h"
#include "catalog/pg_proc.h"
/*
* Hook on object accesses. This is intended as infrastructure for security
@ -109,3 +110,19 @@ RunNamespaceSearchHook(Oid objectId, bool ereport_on_violation)
return ns_arg.result;
}
/*
* RunFunctionExecuteHook
*
* It is entrypoint of OAT_FUNCTION_EXECUTE event
*/
void
RunFunctionExecuteHook(Oid objectId)
{
/* caller should check, but just in case... */
Assert(object_access_hook != NULL);
(*object_access_hook)(OAT_FUNCTION_EXECUTE,
ProcedureRelationId, objectId, 0,
NULL);
}

3
src/backend/executor/execQual.c
View File

@ -39,6 +39,7 @@
#include "access/htup_details.h"
#include "access/nbtree.h"
#include "access/tupconvert.h"
#include "catalog/objectaccess.h"
#include "catalog/pg_type.h"
#include "commands/typecmds.h"
#include "executor/execdebug.h"
@ -1289,6 +1290,7 @@ init_fcache(Oid foid, Oid input_collation, FuncExprState *fcache,
aclresult = pg_proc_aclcheck(foid, GetUserId(), ACL_EXECUTE);
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC, get_func_name(foid));
InvokeFunctionExecuteHook(foid);
/*
* Safety check on nargs. Under normal circumstances this should never
@ -4223,6 +4225,7 @@ ExecEvalArrayCoerceExpr(ArrayCoerceExprState *astate,
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC,
get_func_name(acoerce->elemfuncid));
InvokeFunctionExecuteHook(acoerce->elemfuncid);
/* Set up the primary fmgr lookup information */
fmgr_info_cxt(acoerce->elemfuncid, &(astate->elemfunc),

4
src/backend/executor/nodeAgg.c
View File

@ -79,6 +79,7 @@
#include "postgres.h"
#include "access/htup_details.h"
#include "catalog/objectaccess.h"
#include "catalog/pg_aggregate.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_type.h"
@ -1625,6 +1626,7 @@ ExecInitAgg(Agg *node, EState *estate, int eflags)
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC,
get_func_name(aggref->aggfnoid));
InvokeFunctionExecuteHook(aggref->aggfnoid);
peraggstate->transfn_oid = transfn_oid = aggform->aggtransfn;
peraggstate->finalfn_oid = finalfn_oid = aggform->aggfinalfn;
@ -1647,6 +1649,7 @@ ExecInitAgg(Agg *node, EState *estate, int eflags)
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC,
get_func_name(transfn_oid));
InvokeFunctionExecuteHook(transfn_oid);
if (OidIsValid(finalfn_oid))
{
aclresult = pg_proc_aclcheck(finalfn_oid, aggOwner,
@ -1654,6 +1657,7 @@ ExecInitAgg(Agg *node, EState *estate, int eflags)
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC,
get_func_name(finalfn_oid));
InvokeFunctionExecuteHook(finalfn_oid);
}
}

4
src/backend/executor/nodeWindowAgg.c
View File

@ -34,6 +34,7 @@
#include "postgres.h"
#include "access/htup_details.h"
#include "catalog/objectaccess.h"
#include "catalog/pg_aggregate.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_type.h"
@ -1559,6 +1560,7 @@ ExecInitWindowAgg(WindowAgg *node, EState *estate, int eflags)
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC,
get_func_name(wfunc->winfnoid));
InvokeFunctionExecuteHook(wfunc->winfnoid);
/* Fill in the perfuncstate data */
perfuncstate->wfuncstate = wfuncstate;
@ -1767,6 +1769,7 @@ initialize_peragg(WindowAggState *winstate, WindowFunc *wfunc,
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC,
get_func_name(transfn_oid));
InvokeFunctionExecuteHook(transfn_oid);
if (OidIsValid(finalfn_oid))
{
aclresult = pg_proc_aclcheck(finalfn_oid, aggOwner,
@ -1774,6 +1777,7 @@ initialize_peragg(WindowAggState *winstate, WindowFunc *wfunc,
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC,
get_func_name(finalfn_oid));
InvokeFunctionExecuteHook(finalfn_oid);
}
}

1
src/backend/tcop/fastpath.c
View File

@ -362,6 +362,7 @@ HandleFunctionRequest(StringInfo msgBuf)
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC,
get_func_name(fid));
InvokeFunctionExecuteHook(fid);
/*
* Prepare function call info block and insert arguments.

14
src/include/catalog/objectaccess.h
View File

@ -31,6 +31,12 @@
* a particular namespace. This event is equivalent to usage permission
* on a schema under the default access control mechanism.
*
* OAT_FUNCTION_EXECUTE should be invoked prior to function execution.
* This event is almost equivalent to execute permission on functions,
* except for the case when execute permission is checked during object
* creation or altering, because OAT_POST_CREATE or OAT_POST_ALTER are
* sufficient for extensions to track these kind of checks.
*
* Other types may be added in the future.
*/
typedef enum ObjectAccessType
@ -39,6 +45,7 @@ typedef enum ObjectAccessType
OAT_DROP,
OAT_POST_ALTER,
OAT_NAMESPACE_SEARCH,
OAT_FUNCTION_EXECUTE,
} ObjectAccessType;
/*
@ -129,6 +136,7 @@ extern void RunObjectDropHook(Oid classId, Oid objectId, int subId,
extern void RunObjectPostAlterHook(Oid classId, Oid objectId, int subId,
Oid auxiliaryId, bool is_internal);
extern bool RunNamespaceSearchHook(Oid objectId, bool ereport_on_volation);
extern void RunFunctionExecuteHook(Oid objectId);
/*
* The following macros are wrappers around the functions above; these should
@ -170,4 +178,10 @@ extern bool RunNamespaceSearchHook(Oid objectId, bool ereport_on_volation);
? true \
: RunNamespaceSearchHook((objectId), (ereport_on_violation)))
#define InvokeFunctionExecuteHook(objectId) \
do { \
if (object_access_hook) \
RunFunctionExecuteHook(objectId); \
} while(0)
#endif /* OBJECTACCESS_H */