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Rename pg_rowsecurity -> pg_policy and other fixes 

As pointed out by Robert, we should really have named pg_rowsecurity
pg_policy, as the objects stored in that catalog are policies.  This
patch fixes that and updates the column names to start with 'pol' to
match the new catalog name.

The security consideration for COPY with row level security, also
pointed out by Robert, has also been addressed by remembering and
re-checking the OID of the relation initially referenced during COPY
processing, to make sure it hasn't changed under us by the time we
finish planning out the query which has been built.

Robert and Alvaro also commented on missing OCLASS and OBJECT entries
for POLICY (formerly ROWSECURITY or POLICY, depending) in various
places.  This patch fixes that too, which also happens to add the
ability to COMMENT on policies.

In passing, attempt to improve the consistency of messages, comments,
and documentation as well.  This removes various incarnations of
'row-security', 'row-level security', 'Row-security', etc, in favor
of 'policy', 'row level security' or 'row_security' as appropriate.

Happy Thanksgiving!
This commit is contained in:
Stephen Frost 2014-11-27 01:06:36 -05:00
parent 1812ee5767
commit 143b39c185
47 changed files with 616 additions and 545 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
doc/src/sgml/catalogs.sgml
View File

@ -239,8 +239,8 @@
</row>
<row>
<entry><link linkend="catalog-pg-rowsecurity"><structname>pg_rowsecurity</structname></link></entry>
<entry>table row-level security policies</entry>
<entry><link linkend="catalog-pg-policy"><structname>pg_policy</structname></link></entry>
<entry>table policies</entry>
</row>
<row>
@ -1944,8 +1944,8 @@
<entry><type>bool</type></entry>
<entry></entry>
<entry>
True if table has row-security enabled; see
<link linkend="catalog-pg-rowsecurity"><structname>pg_rowsecurity</structname></link> catalog
True if table has row level security enabled; see
<link linkend="catalog-pg-policy"><structname>pg_policy</structname></link> catalog
</entry>
</row>
@ -5342,15 +5342,15 @@
</table>
</sect1>
<sect1 id="catalog-pg-rowsecurity">
<title><structname>pg_rowsecurity</structname></title>
<sect1 id="catalog-pg-policy">
<title><structname>pg_policy</structname></title>
<indexterm zone="catalog-pg-rowsecurity">
<primary>pg_rowsecurity</primary>
<indexterm zone="catalog-pg-policy">
<primary>pg_policy</primary>
</indexterm>
<para>
The catalog <structname>pg_rowsecurity</structname> stores row-level
The catalog <structname>pg_policy</structname> stores row-level
security policies for each table. A policy includes the kind of
command which it applies to (or all commands), the roles which it
applies to, the expression to be added as a security-barrier
@ -5361,7 +5361,7 @@
<table>
<title><structname>pg_rowsecurity</structname> Columns</title>
<title><structname>pg_policy</structname> Columns</title>
<tgroup cols="4">
<thead>
@ -5375,42 +5375,42 @@
<tbody>
<row>
<entry><structfield>rsecpolname</structfield></entry>
<entry><structfield>polname</structfield></entry>
<entry><type>name</type></entry>
<entry></entry>
<entry>The name of the row-security policy</entry>
<entry>The name of the policy</entry>
</row>
<row>
<entry><structfield>rsecrelid</structfield></entry>
<entry><structfield>polrelid</structfield></entry>
<entry><type>oid</type></entry>
<entry><literal><link linkend="catalog-pg-class"><structname>pg_class</structname></link>.oid</literal></entry>
<entry>The table to which the row-security policy belongs</entry>
<entry>The table to which the policy belongs</entry>
</row>
<row>
<entry><structfield>rseccmd</structfield></entry>
<entry><structfield>polcmd</structfield></entry>
<entry><type>char</type></entry>
<entry></entry>
<entry>The command type to which the row-security policy is applied.</entry>
<entry>The command type to which the policy is applied.</entry>
</row>
<row>
<entry><structfield>rsecroles</structfield></entry>
<entry><structfield>polroles</structfield></entry>
<entry><type>char</type></entry>
<entry></entry>
<entry>The roles to which the row-security policy is applied.</entry>
<entry>The roles to which the policy is applied.</entry>
</row>
<row>
<entry><structfield>rsecqual</structfield></entry>
<entry><structfield>polqual</structfield></entry>
<entry><type>pg_node_tree</type></entry>
<entry></entry>
<entry>The expression tree to be added to the security barrier qualifications for queries which use the table.</entry>
</row>
<row>
<entry><structfield>rsecwithcheck</structfield></entry>
<entry><structfield>polwithcheck</structfield></entry>
<entry><type>pg_node_tree</type></entry>
<entry></entry>
<entry>The expression tree to be added to the with check qualifications for queries which attempt to add rows to the table.</entry>
@ -5423,8 +5423,8 @@
<note>
<para>
<literal>pg_class.relrowsecurity</literal>
True if the table has row-security enabled. Policies will not be applied
unless row-security is enabled on the table.
True if the table has row security enabled. Policies will not be applied
unless row security is enabled on the table.
</para>
</note>

4
doc/src/sgml/ddl.sgml
View File

@ -1558,8 +1558,8 @@ REVOKE ALL ON accounts FROM PUBLIC;
<para>
To specify which rows are visible and what rows can be added to the
table with row security, an expression is required which returns a
boolean result. This expression will be evaluated for each row prior
table with row level security, an expression is required which returns
a boolean result. This expression will be evaluated for each row prior
to other conditionals or functions which are part of the query. The
one exception to this rule are <literal>leakproof</literal> functions,
which are guaranteed to not leak information. Two expressions may be

4
doc/src/sgml/ref/alter_policy.sgml
View File

@ -16,7 +16,7 @@ PostgreSQL documentation
<refnamediv>
<refname>ALTER POLICY</refname>
<refpurpose>change the definition of a row-security policy</refpurpose>
<refpurpose>change the definition of a policy</refpurpose>
</refnamediv>
<refsynopsisdiv>
@ -34,7 +34,7 @@ ALTER POLICY <replaceable class="parameter">name</replaceable> ON <replaceable c
<para>
<command>ALTER POLICY</command> changes the <replaceable class="parameter">
definition</replaceable> of an existing row-security policy.
definition</replaceable> of an existing policy.
</para>
<para>

49
doc/src/sgml/ref/create_policy.sgml
View File

@ -16,7 +16,7 @@ PostgreSQL documentation
<refnamediv>
<refname>CREATE POLICY</refname>
<refpurpose>define a new row-security policy for a table</refpurpose>
<refpurpose>define a new policy for a table</refpurpose>
</refnamediv>
<refsynopsisdiv>
@ -33,14 +33,13 @@ CREATE POLICY <replaceable class="parameter">name</replaceable> ON <replaceable
<title>Description</title>
<para>
The <command>CREATE POLICY</command> command defines a new row-security
policy for a table. Note that row-security must also be enabled on the
table using <command>ALTER TABLE</command> in order for created policies
to be applied.
The <command>CREATE POLICY</command> command defines a new policy for a
table. Note that row level security must also be enabled on the table using
<command>ALTER TABLE</command> in order for created policies to be applied.
</para>
<para>
A row-security policy is an expression which is added to the security-barrier
A policy is an expression which is added to the security-barrier
qualifications of queries which are run against the table the policy is on,
or an expression which is added to the with-check options for a table and
which is applied to rows which would be added to the table.
@ -49,7 +48,7 @@ CREATE POLICY <replaceable class="parameter">name</replaceable> ON <replaceable
expression will be evaluated against the rows which are going to be added to
the table. By adding policies to a table, a user can limit the rows which a
given user can select, insert, update, or delete. This capability is also
known as Row-Level Security or RLS.
known as Row Level Security or RLS.
</para>
<para>
@ -66,22 +65,22 @@ CREATE POLICY <replaceable class="parameter">name</replaceable> ON <replaceable
</para>
<para>
Note that while row-security policies will be applied for explicit queries
against tables in the system, they are not applied when the system is
performing internal referential integrity checks or validating constraints.
This means there are indirect ways to determine that a given value exists.
An example of this is attempting to insert a duplicate value
into a column which is the primary key or has a unique constraint. If the
insert fails then the user can infer that the value already exists (this
example assumes that the user is permitted by policy to insert
records which they are not allowed to see). Another example is where a user
is allowed to insert into a table which references another, otherwise hidden
table. Existence can be determined by the user inserting values into the
referencing table, where success would indicate that the value exists in the
referenced table. These issues can be addressed by carefully crafting
policies which prevent users from being able to insert, delete, or update
records at all which might possibly indicate a value they are not otherwise
able to see, or by using generated values (e.g.: surrogate keys) instead.
Note that while policies will be applied for explicit queries against tables
in the system, they are not applied when the system is performing internal
referential integrity checks or validating constraints. This means there are
indirect ways to determine that a given value exists. An example of this is
attempting to insert a duplicate value into a column which is the primary key
or has a unique constraint. If the insert fails then the user can infer that
the value already exists (this example assumes that the user is permitted by
policy to insert records which they are not allowed to see). Another example
is where a user is allowed to insert into a table which references another,
otherwise hidden table. Existence can be determined by the user inserting
values into the referencing table, where success would indicate that the
value exists in the referenced table. These issues can be addressed by
carefully crafting policies which prevent users from being able to insert,
delete, or update records at all which might possibly indicate a value they
are not otherwise able to see, or by using generated values (e.g.: surrogate
keys) instead.
</para>
<para>
@ -291,8 +290,8 @@ CREATE POLICY <replaceable class="parameter">name</replaceable> ON <replaceable
<para>
In order to maintain <firstterm>referential integrity</firstterm> between
two related tables, row-security policies are not applied when the system
performs checks on foreign key constraints.
two related tables, policies are not applied when the system performs
checks on foreign key constraints.
</para>
</refsect1>

16
doc/src/sgml/ref/drop_policy.sgml
View File

@ -16,7 +16,7 @@ PostgreSQL documentation
<refnamediv>
<refname>DROP POLICY</refname>
<refpurpose>remove a row-security policy from a table</refpurpose>
<refpurpose>remove a policy from a table</refpurpose>
</refnamediv>
<refsynopsisdiv>
@ -29,11 +29,11 @@ DROP POLICY [ IF EXISTS ] <replaceable class="parameter">name</replaceable> ON <
<title>Description</title>
<para>
<command>DROP POLICY</command> removes the specified row-security policy
from the table. Note that if the last policy is removed for a table and
the table still has ROW POLICY enabled via <command>ALTER TABLE</command>,
then the default-deny policy will be used. <command>ALTER TABLE</command>
can be used to disable row security for a table using
<command>DROP POLICY</command> removes the specified policy from the table.
Note that if the last policy is removed for a table and the table still has
row level security enabled via <command>ALTER TABLE</command>, then the
default-deny policy will be used. <command>ALTER TABLE</command> can be used
to disable row level security for a table using
<literal>DISABLE ROW SECURITY</literal>, whether policies for the table
exist or not.
</para>
@ -80,8 +80,8 @@ DROP POLICY [ IF EXISTS ] <replaceable class="parameter">name</replaceable> ON <
<title>Examples</title>
<para>
To drop the row-security policy called <literal>p1</literal> on the
table named <literal>my_table</literal>:
To drop the policy called <literal>p1</literal> on the table named
<literal>my_table</literal>:
<programlisting>
DROP POLICY p1 ON my_table;

2
doc/src/sgml/rules.sgml
View File

@ -2133,7 +2133,7 @@ SELECT * FROM phone_number WHERE tricky(person, phone);
</para>
<para>
When it is necessary for a view to provide row-level security, the
When it is necessary for a view to provide row level security, the
<literal>security_barrier</literal> attribute should be applied to
the view. This prevents maliciously-chosen functions and operators from
being invoked on rows until after the view has done its work. For

2
src/backend/catalog/Makefile
View File

@ -39,7 +39,7 @@ POSTGRES_BKI_SRCS = $(addprefix $(top_srcdir)/src/include/catalog/,\
pg_ts_config.h pg_ts_config_map.h pg_ts_dict.h \
pg_ts_parser.h pg_ts_template.h pg_extension.h \
pg_foreign_data_wrapper.h pg_foreign_server.h pg_user_mapping.h \
pg_foreign_table.h pg_rowsecurity.h \
pg_foreign_table.h pg_policy.h \
pg_default_acl.h pg_seclabel.h pg_shseclabel.h pg_collation.h pg_range.h \
toasting.h indexing.h \
)

11
src/backend/catalog/dependency.c
View File

@ -43,9 +43,9 @@
#include "catalog/pg_opclass.h"
#include "catalog/pg_operator.h"
#include "catalog/pg_opfamily.h"
#include "catalog/pg_policy.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_rewrite.h"
#include "catalog/pg_rowsecurity.h"
#include "catalog/pg_tablespace.h"
#include "catalog/pg_trigger.h"
#include "catalog/pg_ts_config.h"
@ -156,7 +156,8 @@ static const Oid object_classes[MAX_OCLASS] = {
UserMappingRelationId, /* OCLASS_USER_MAPPING */
DefaultAclRelationId, /* OCLASS_DEFACL */
ExtensionRelationId, /* OCLASS_EXTENSION */
EventTriggerRelationId /* OCLASS_EVENT_TRIGGER */
EventTriggerRelationId, /* OCLASS_EVENT_TRIGGER */
PolicyRelationId /* OCLASS_POLICY */
};
@ -1251,7 +1252,7 @@ doDeletion(const ObjectAddress *object, int flags)
RemoveEventTriggerById(object->objectId);
break;
case OCLASS_ROWSECURITY:
case OCLASS_POLICY:
RemovePolicyById(object->objectId);
break;
@ -2361,8 +2362,8 @@ getObjectClass(const ObjectAddress *object)
case EventTriggerRelationId:
return OCLASS_EVENT_TRIGGER;
case RowSecurityRelationId:
return OCLASS_ROWSECURITY;
case PolicyRelationId:
return OCLASS_POLICY;
}
/* shouldn't get here */

58
src/backend/catalog/objectaddress.c
View File

@ -42,7 +42,7 @@
#include "catalog/pg_opfamily.h"
#include "catalog/pg_operator.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_rowsecurity.h"
#include "catalog/pg_policy.h"
#include "catalog/pg_rewrite.h"
#include "catalog/pg_tablespace.h"
#include "catalog/pg_trigger.h"
@ -346,11 +346,11 @@ static const ObjectPropertyType ObjectProperty[] =
false
},
{
RowSecurityRelationId,
RowSecurityOidIndexId,
PolicyRelationId,
PolicyOidIndexId,
-1,
-1,
Anum_pg_rowsecurity_rsecpolname,
Anum_pg_policy_polname,
InvalidAttrNumber,
InvalidAttrNumber,
InvalidAttrNumber,
@ -998,7 +998,7 @@ get_object_address_relobject(ObjectType objtype, List *objname,
address.objectSubId = 0;
break;
case OBJECT_POLICY:
address.classId = RowSecurityRelationId;
address.classId = PolicyRelationId;
address.objectId = relation ?
get_relation_policy_oid(reloid, depname, missing_ok) :
InvalidOid;
@ -2189,38 +2189,38 @@ getObjectDescription(const ObjectAddress *object)
break;
}
case OCLASS_ROWSECURITY:
case OCLASS_POLICY:
{
Relation rsec_rel;
Relation policy_rel;
ScanKeyData skey[1];
SysScanDesc sscan;
HeapTuple tuple;
Form_pg_rowsecurity form_rsec;
Form_pg_policy form_policy;
rsec_rel = heap_open(RowSecurityRelationId, AccessShareLock);
policy_rel = heap_open(PolicyRelationId, AccessShareLock);
ScanKeyInit(&skey[0],
ObjectIdAttributeNumber,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(object->objectId));
sscan = systable_beginscan(rsec_rel, RowSecurityOidIndexId,
sscan = systable_beginscan(policy_rel, PolicyOidIndexId,
true, NULL, 1, skey);
tuple = systable_getnext(sscan);
if (!HeapTupleIsValid(tuple))
elog(ERROR, "cache lookup failed for row-security relation %u",
elog(ERROR, "cache lookup failed for policy %u",
object->objectId);
form_rsec = (Form_pg_rowsecurity) GETSTRUCT(tuple);
form_policy = (Form_pg_policy) GETSTRUCT(tuple);
appendStringInfo(&buffer, _("policy %s on "),
NameStr(form_rsec->rsecpolname));
getRelationDescription(&buffer, form_rsec->rsecrelid);
NameStr(form_policy->polname));
getRelationDescription(&buffer, form_policy->polrelid);
systable_endscan(sscan);
heap_close(rsec_rel, AccessShareLock);
heap_close(policy_rel, AccessShareLock);
break;
}
@ -2635,6 +2635,10 @@ getObjectTypeDescription(const ObjectAddress *object)
appendStringInfoString(&buffer, "event trigger");
break;
case OCLASS_POLICY:
appendStringInfoString(&buffer, "policy");
break;
default:
appendStringInfo(&buffer, "unrecognized %u", object->classId);
break;
@ -3119,6 +3123,30 @@ getObjectIdentity(const ObjectAddress *object)
break;
}
case OCLASS_POLICY:
{
Relation polDesc;
HeapTuple tup;
Form_pg_policy policy;
polDesc = heap_open(PolicyRelationId, AccessShareLock);
tup = get_catalog_object_by_oid(polDesc, object->objectId);
if (!HeapTupleIsValid(tup))
elog(ERROR, "could not find tuple for policy %u",
object->objectId);
policy = (Form_pg_policy) GETSTRUCT(tup);
appendStringInfo(&buffer, "%s on ",
quote_identifier(NameStr(policy->polname)));
getRelationIdentity(&buffer, policy->polrelid);
heap_close(polDesc, AccessShareLock);
break;
}
case OCLASS_SCHEMA:
{
char *nspname;

18
src/backend/catalog/system_views.sql
View File

@ -67,30 +67,30 @@ CREATE VIEW pg_policies AS
SELECT
N.nspname AS schemaname,
C.relname AS tablename,
rs.rsecpolname AS policyname,
pol.polname AS policyname,
CASE
WHEN rs.rsecroles = '{0}' THEN
WHEN pol.polroles = '{0}' THEN
string_to_array('public', '')
ELSE
ARRAY
(
SELECT rolname
FROM pg_catalog.pg_authid
WHERE oid = ANY (rs.rsecroles) ORDER BY 1
WHERE oid = ANY (pol.polroles) ORDER BY 1
)
END AS roles,
CASE WHEN rs.rseccmd IS NULL THEN 'ALL' ELSE
CASE rs.rseccmd
CASE WHEN pol.polcmd IS NULL THEN 'ALL' ELSE
CASE pol.polcmd
WHEN 'r' THEN 'SELECT'
WHEN 'a' THEN 'INSERT'
WHEN 'u' THEN 'UPDATE'
WHEN 'd' THEN 'DELETE'
END
END AS cmd,
pg_catalog.pg_get_expr(rs.rsecqual, rs.rsecrelid) AS qual,
pg_catalog.pg_get_expr(rs.rsecwithcheck, rs.rsecrelid) AS with_check
FROM pg_catalog.pg_rowsecurity rs
JOIN pg_catalog.pg_class C ON (C.oid = rs.rsecrelid)
pg_catalog.pg_get_expr(pol.polqual, pol.polrelid) AS qual,
pg_catalog.pg_get_expr(pol.polwithcheck, pol.polrelid) AS with_check
FROM pg_catalog.pg_policy pol
JOIN pg_catalog.pg_class C ON (C.oid = pol.polrelid)
LEFT JOIN pg_catalog.pg_namespace N ON (N.oid = C.relnamespace);
CREATE VIEW pg_rules AS

48
src/backend/commands/copy.c
View File

@ -282,12 +282,13 @@ static const char BinarySignature[11] = "PGCOPY\n\377\r\n\0";
/* non-export function prototypes */
static CopyState BeginCopy(bool is_from, Relation rel, Node *raw_query,
const char *queryString, List *attnamelist, List *options);
const char *queryString, const Oid queryRelId, List *attnamelist,
List *options);
static void EndCopy(CopyState cstate);
static void ClosePipeToProgram(CopyState cstate);
static CopyState BeginCopyTo(Relation rel, Node *query, const char *queryString,
const char *filename, bool is_program, List *attnamelist,
List *options);
const Oid queryRelId, const char *filename, bool is_program,
List *attnamelist, List *options);
static void EndCopyTo(CopyState cstate);
static uint64 DoCopyTo(CopyState cstate);
static uint64 CopyTo(CopyState cstate);
@ -843,7 +844,7 @@ DoCopy(const CopyStmt *stmt, const char *queryString, uint64 *processed)
ExecCheckRTPerms(list_make1(rte), true);
/*
* Permission check for row security.
* Permission check for row security policies.
*
* check_enable_rls will ereport(ERROR) if the user has requested
* something invalid and will otherwise indicate if we should enable
@ -866,7 +867,7 @@ DoCopy(const CopyStmt *stmt, const char *queryString, uint64 *processed)
if (is_from)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("COPY FROM not supported with row security."),
errmsg("COPY FROM not supported with row level security."),
errhint("Use direct INSERT statements instead.")));
/* Build target list */
@ -886,7 +887,7 @@ DoCopy(const CopyStmt *stmt, const char *queryString, uint64 *processed)
target->location = 1;
/* Build FROM clause */
from = makeRangeVar(NULL, RelationGetRelationName(rel), 1);
from = stmt->relation;
/* Build query */
select = makeNode(SelectStmt);
@ -895,8 +896,6 @@ DoCopy(const CopyStmt *stmt, const char *queryString, uint64 *processed)
query = (Node*) select;
relid = InvalidOid;
/* Close the handle to the relation as it is no longer needed. */
heap_close(rel, (is_from ? RowExclusiveLock : AccessShareLock));
rel = NULL;
@ -926,7 +925,7 @@ DoCopy(const CopyStmt *stmt, const char *queryString, uint64 *processed)
}
else
{
cstate = BeginCopyTo(rel, query, queryString,
cstate = BeginCopyTo(rel, query, queryString, relid,
stmt->filename, stmt->is_program,
stmt->attlist, stmt->options);
*processed = DoCopyTo(cstate); /* copy from database to file */
@ -1304,6 +1303,7 @@ BeginCopy(bool is_from,
Relation rel,
Node *raw_query,
const char *queryString,
const Oid queryRelId,
List *attnamelist,
List *options)
{
@ -1394,6 +1394,30 @@ BeginCopy(bool is_from,
/* plan the query */
plan = planner(query, 0, NULL);
/*
* If we were passed in a relid, make sure we got the same one back
* after planning out the query. It's possible that it changed between
* when we checked the policies on the table and decided to use a query
* and now.
*/
if (queryRelId != InvalidOid)
{
Oid relid = linitial_oid(plan->relationOids);
/*
* There should only be one relationOid in this case, since we will
* only get here when we have changed the command for the user from
* a "COPY relation TO" to "COPY (SELECT * FROM relation) TO", to
* allow row level security policies to be applied.
*/
Assert(list_length(plan->relationOids) == 1);
if (relid != queryRelId)
ereport(ERROR,
(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
errmsg("relation referenced by COPY statement has changed")));
}
/*
* Use a snapshot with an updated command ID to ensure this query sees
* results of any previously executed queries.
@ -1595,6 +1619,7 @@ static CopyState
BeginCopyTo(Relation rel,
Node *query,
const char *queryString,
const Oid queryRelId,
const char *filename,
bool is_program,
List *attnamelist,
@ -1636,7 +1661,8 @@ BeginCopyTo(Relation rel,
RelationGetRelationName(rel))));
}
cstate = BeginCopy(false, rel, query, queryString, attnamelist, options);
cstate = BeginCopy(false, rel, query, queryString, queryRelId, attnamelist,
options);
oldcontext = MemoryContextSwitchTo(cstate->copycontext);
if (pipe)
@ -2565,7 +2591,7 @@ BeginCopyFrom(Relation rel,
MemoryContext oldcontext;
bool volatile_defexprs;
cstate = BeginCopy(true, rel, NULL, NULL, attnamelist, options);
cstate = BeginCopy(true, rel, NULL, NULL, InvalidOid, attnamelist, options);
oldcontext = MemoryContextSwitchTo(cstate->copycontext);
/* Initialize state variables */

2
src/backend/commands/event_trigger.c
View File

@ -997,7 +997,7 @@ EventTriggerSupportsObjectClass(ObjectClass objclass)
case OCLASS_USER_MAPPING:
case OCLASS_DEFACL:
case OCLASS_EXTENSION:
case OCLASS_ROWSECURITY:
case OCLASS_POLICY:
return true;
case MAX_OCLASS:

6
src/backend/commands/functioncmds.c
View File

@ -904,9 +904,9 @@ CreateFunction(CreateFunctionStmt *stmt, const char *queryString)
ReleaseSysCache(languageTuple);
/*
* Only superuser is allowed to create leakproof functions because it
* possibly allows unprivileged users to reference invisible tuples to be
* filtered out using views for row-level security.
* Only superuser is allowed to create leakproof functions because leakproof
* functions can see tuples which have not yet been filtered out by security
* barrier views or row level security policies.
*/
if (isLeakProof && !superuser())
ereport(ERROR,

317
src/backend/commands/policy.c
View File

@ -22,7 +22,7 @@
#include "catalog/indexing.h"
#include "catalog/namespace.h"
#include "catalog/objectaccess.h"
#include "catalog/pg_rowsecurity.h"
#include "catalog/pg_policy.h"
#include "catalog/pg_type.h"
#include "commands/policy.h"
#include "miscadmin.h"
@ -46,8 +46,8 @@
static void RangeVarCallbackForPolicy(const RangeVar *rv,
Oid relid, Oid oldrelid, void *arg);
static char parse_row_security_command(const char *cmd_name);
static ArrayType* rls_role_list_to_array(List *roles);
static char parse_policy_command(const char *cmd_name);
static ArrayType* policy_role_list_to_array(List *roles);
/*
* Callback to RangeVarGetRelidExtended().
@ -95,7 +95,7 @@ RangeVarCallbackForPolicy(const RangeVar *rv, Oid relid, Oid oldrelid,
}
/*
* parse_row_security_command -
* parse_policy_command -
* helper function to convert full command strings to their char
* representation.
*
@ -104,7 +104,7 @@ RangeVarCallbackForPolicy(const RangeVar *rv, Oid relid, Oid oldrelid,
*
*/
static char
parse_row_security_command(const char *cmd_name)
parse_policy_command(const char *cmd_name)
{
char cmd;
@ -128,7 +128,7 @@ parse_row_security_command(const char *cmd_name)
}
/*
* rls_role_list_to_array
* policy_role_list_to_array
* helper function to convert a list of role names in to an array of
* role ids.
*
@ -138,7 +138,7 @@ parse_row_security_command(const char *cmd_name)
* roles - the list of role names to convert.
*/
static ArrayType *
rls_role_list_to_array(List *roles)
policy_role_list_to_array(List *roles)
{
ArrayType *role_ids;
Datum *temp_array;
@ -190,7 +190,7 @@ rls_role_list_to_array(List *roles)
}
/*
* Load row-security policy from the catalog, and keep it in
* Load row security policy from the catalog, and keep it in
* the relation cache.
*/
void
@ -204,14 +204,14 @@ RelationBuildRowSecurity(Relation relation)
MemoryContext rscxt = NULL;
RowSecurityDesc *rsdesc = NULL;
catalog = heap_open(RowSecurityRelationId, AccessShareLock);
catalog = heap_open(PolicyRelationId, AccessShareLock);
ScanKeyInit(&skey,
Anum_pg_rowsecurity_rsecrelid,
Anum_pg_policy_polrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(RelationGetRelid(relation)));
sscan = systable_beginscan(catalog, RowSecurityRelidPolnameIndexId, true,
sscan = systable_beginscan(catalog, PolicyPolrelidPolnameIndexId, true,
NULL, 1, &skey);
PG_TRY();
{
@ -221,7 +221,7 @@ RelationBuildRowSecurity(Relation relation)
* default-deny policy is created.
*/
rscxt = AllocSetContextCreate(CacheMemoryContext,
"Row-security descriptor",
"row security descriptor",
ALLOCSET_SMALL_MINSIZE,
ALLOCSET_SMALL_INITSIZE,
ALLOCSET_SMALL_MAXSIZE);
@ -229,7 +229,7 @@ RelationBuildRowSecurity(Relation relation)
rsdesc->rscxt = rscxt;
/*
* Loop through the row-level security entries for this relation, if
* Loop through the row level security policies for this relation, if
* any.
*/
while (HeapTupleIsValid(tuple = systable_getnext(sscan)))
@ -249,7 +249,7 @@ RelationBuildRowSecurity(Relation relation)
oldcxt = MemoryContextSwitchTo(rscxt);
/* Get policy command */
value_datum = heap_getattr(tuple, Anum_pg_rowsecurity_rseccmd,
value_datum = heap_getattr(tuple, Anum_pg_policy_polcmd,
RelationGetDescr(catalog), &isnull);
if (isnull)
cmd_value = 0;
@ -257,19 +257,19 @@ RelationBuildRowSecurity(Relation relation)
cmd_value = DatumGetChar(value_datum);
/* Get policy name */
value_datum = heap_getattr(tuple, Anum_pg_rowsecurity_rsecpolname,
value_datum = heap_getattr(tuple, Anum_pg_policy_polname,
RelationGetDescr(catalog), &isnull);
Assert(!isnull);
policy_name_value = DatumGetCString(value_datum);
/* Get policy roles */
value_datum = heap_getattr(tuple, Anum_pg_rowsecurity_rsecroles,
value_datum = heap_getattr(tuple, Anum_pg_policy_polroles,
RelationGetDescr(catalog), &isnull);
Assert(!isnull);
roles = DatumGetArrayTypeP(value_datum);
/* Get policy qual */
value_datum = heap_getattr(tuple, Anum_pg_rowsecurity_rsecqual,
value_datum = heap_getattr(tuple, Anum_pg_policy_polqual,
RelationGetDescr(catalog), &isnull);
if (!isnull)
{
@ -280,7 +280,7 @@ RelationBuildRowSecurity(Relation relation)
qual_expr = NULL;
/* Get WITH CHECK qual */
value_datum = heap_getattr(tuple, Anum_pg_rowsecurity_rsecwithcheck,
value_datum = heap_getattr(tuple, Anum_pg_policy_polwithcheck,
RelationGetDescr(catalog), &isnull);
if (!isnull)
@ -295,7 +295,7 @@ RelationBuildRowSecurity(Relation relation)
policy = palloc0(sizeof(RowSecurityPolicy));
policy->policy_name = policy_name_value;
policy->rsecid = policy_id;
policy->policy_id = policy_id;
policy->cmd = cmd_value;
policy->roles = roles;
policy->qual = copyObject(qual_expr);
@ -317,7 +317,7 @@ RelationBuildRowSecurity(Relation relation)
/*
* Check if no policies were added
*
* If no policies exist in pg_rowsecurity for this relation, then we
* If no policies exist in pg_policy for this relation, then we
* need to create a single default-deny policy. We use InvalidOid for
* the Oid to indicate that this is the default-deny policy (we may
* decide to ignore the default policy if an extension adds policies).
@ -333,7 +333,7 @@ RelationBuildRowSecurity(Relation relation)
policy = palloc0(sizeof(RowSecurityPolicy));
policy->policy_name = pstrdup("default-deny policy");
policy->rsecid = InvalidOid;
policy->policy_id = InvalidOid;
policy->cmd = '\0';
policy->roles = construct_array(&role, 1, OIDOID, sizeof(Oid), true,
'i');
@ -364,22 +364,22 @@ RelationBuildRowSecurity(Relation relation)
/*
* RemovePolicyById -
* remove a row-security policy by its OID. If a policy does not exist with
* the provided oid, then an error is raised.
* remove a policy by its OID. If a policy does not exist with the provided
* oid, then an error is raised.
*
* policy_id - the oid of the row-security policy.
* policy_id - the oid of the policy.
*/
void
RemovePolicyById(Oid policy_id)
{
Relation pg_rowsecurity_rel;
Relation pg_policy_rel;
SysScanDesc sscan;
ScanKeyData skey[1];
HeapTuple tuple;
Oid relid;
Relation rel;
pg_rowsecurity_rel = heap_open(RowSecurityRelationId, RowExclusiveLock);
pg_policy_rel = heap_open(PolicyRelationId, RowExclusiveLock);
/*
* Find the policy to delete.
@ -389,19 +389,19 @@ RemovePolicyById(Oid policy_id)
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(policy_id));
sscan = systable_beginscan(pg_rowsecurity_rel, RowSecurityOidIndexId, true,
sscan = systable_beginscan(pg_policy_rel, PolicyOidIndexId, true,
NULL, 1, skey);
tuple = systable_getnext(sscan);
/* If the policy exists, then remove it, otherwise raise an error. */
if (!HeapTupleIsValid(tuple))
elog(ERROR, "could not find tuple for row-security %u", policy_id);
elog(ERROR, "could not find tuple for policy %u", policy_id);
/*
* Open and exclusive-lock the relation the policy belong to.
*/
relid = ((Form_pg_rowsecurity) GETSTRUCT(tuple))->rsecrelid;
relid = ((Form_pg_policy) GETSTRUCT(tuple))->polrelid;
rel = heap_open(relid, AccessExclusiveLock);
if (rel->rd_rel->relkind != RELKIND_RELATION)
@ -416,7 +416,7 @@ RemovePolicyById(Oid policy_id)
errmsg("permission denied: \"%s\" is a system catalog",
RelationGetRelationName(rel))));
simple_heap_delete(pg_rowsecurity_rel, &tuple->t_self);
simple_heap_delete(pg_policy_rel, &tuple->t_self);
systable_endscan(sscan);
heap_close(rel, AccessExclusiveLock);
@ -424,9 +424,8 @@ RemovePolicyById(Oid policy_id)
/*
* Note that, unlike some of the other flags in pg_class, relrowsecurity
* is not just an indication of if policies exist. When relrowsecurity
* is set (which can be done directly by the user or indirectly by creating
* a policy on the table), then all access to the relation must be through
* a policy. If no policy is defined for the relation then a default-deny
* is set by a user, then all access to the relation must be through a
* policy. If no policy is defined for the relation then a default-deny
* policy is created and all records are filtered (except for queries from
* the owner).
*/
@ -434,7 +433,7 @@ RemovePolicyById(Oid policy_id)
CacheInvalidateRelcache(rel);
/* Clean up */
heap_close(pg_rowsecurity_rel, RowExclusiveLock);
heap_close(pg_policy_rel, RowExclusiveLock);
}
/*
@ -446,11 +445,11 @@ RemovePolicyById(Oid policy_id)
Oid
CreatePolicy(CreatePolicyStmt *stmt)
{
Relation pg_rowsecurity_rel;
Oid rowsec_id;
Relation pg_policy_rel;
Oid policy_id;
Relation target_table;
Oid table_id;
char rseccmd;
char polcmd;
ArrayType *role_ids;
ParseState *qual_pstate;
ParseState *with_check_pstate;
@ -459,19 +458,19 @@ CreatePolicy(CreatePolicyStmt *stmt)
Node *with_check_qual;
ScanKeyData skey[2];
SysScanDesc sscan;
HeapTuple rsec_tuple;
Datum values[Natts_pg_rowsecurity];
bool isnull[Natts_pg_rowsecurity];
HeapTuple policy_tuple;
Datum values[Natts_pg_policy];
bool isnull[Natts_pg_policy];
ObjectAddress target;
ObjectAddress myself;
/* Parse command */
rseccmd = parse_row_security_command(stmt->cmd);
polcmd = parse_policy_command(stmt->cmd);
/*
* If the command is SELECT or DELETE then WITH CHECK should be NULL.
*/
if ((rseccmd == ACL_SELECT_CHR || rseccmd == ACL_DELETE_CHR)
if ((polcmd == ACL_SELECT_CHR || polcmd == ACL_DELETE_CHR)
&& stmt->with_check != NULL)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
@ -481,14 +480,14 @@ CreatePolicy(CreatePolicyStmt *stmt)
* If the command is INSERT then WITH CHECK should be the only expression
* provided.
*/
if (rseccmd == ACL_INSERT_CHR && stmt->qual != NULL)
if (polcmd == ACL_INSERT_CHR && stmt->qual != NULL)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("only WITH CHECK expression allowed for INSERT")));
/* Collect role ids */
role_ids = rls_role_list_to_array(stmt->roles);
role_ids = policy_role_list_to_array(stmt->roles);
/* Parse the supplied clause */
qual_pstate = make_parsestate(NULL);
@ -527,74 +526,74 @@ CreatePolicy(CreatePolicyStmt *stmt)
EXPR_KIND_WHERE,
"POLICY");
/* Open pg_rowsecurity catalog */
pg_rowsecurity_rel = heap_open(RowSecurityRelationId, RowExclusiveLock);
/* Open pg_policy catalog */
pg_policy_rel = heap_open(PolicyRelationId, RowExclusiveLock);
/* Set key - row security relation id. */
/* Set key - policy's relation id. */
ScanKeyInit(&skey[0],
Anum_pg_rowsecurity_rsecrelid,
Anum_pg_policy_polrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(table_id));
/* Set key - row security policy name. */
/* Set key - policy's name. */
ScanKeyInit(&skey[1],
Anum_pg_rowsecurity_rsecpolname,
Anum_pg_policy_polname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(stmt->policy_name));
sscan = systable_beginscan(pg_rowsecurity_rel,
RowSecurityRelidPolnameIndexId, true, NULL, 2,
sscan = systable_beginscan(pg_policy_rel,
PolicyPolrelidPolnameIndexId, true, NULL, 2,
skey);
rsec_tuple = systable_getnext(sscan);
policy_tuple = systable_getnext(sscan);
/* Complain if the policy name already exists for the table */
if (HeapTupleIsValid(rsec_tuple))
if (HeapTupleIsValid(policy_tuple))
ereport(ERROR,
(errcode(ERRCODE_DUPLICATE_OBJECT),
errmsg("policy \"%s\" for relation \"%s\" already exists",
stmt->policy_name, RelationGetRelationName(target_table))));
values[Anum_pg_rowsecurity_rsecrelid - 1] = ObjectIdGetDatum(table_id);
values[Anum_pg_rowsecurity_rsecpolname - 1]
values[Anum_pg_policy_polrelid - 1] = ObjectIdGetDatum(table_id);
values[Anum_pg_policy_polname - 1]
= DirectFunctionCall1(namein, CStringGetDatum(stmt->policy_name));
if (rseccmd)
values[Anum_pg_rowsecurity_rseccmd - 1] = CharGetDatum(rseccmd);
if (polcmd)
values[Anum_pg_policy_polcmd - 1] = CharGetDatum(polcmd);
else
isnull[Anum_pg_rowsecurity_rseccmd - 1] = true;
isnull[Anum_pg_policy_polcmd - 1] = true;
values[Anum_pg_rowsecurity_rsecroles - 1] = PointerGetDatum(role_ids);
values[Anum_pg_policy_polroles - 1] = PointerGetDatum(role_ids);
/* Add qual if present. */
if (qual)
values[Anum_pg_rowsecurity_rsecqual - 1]
values[Anum_pg_policy_polqual - 1]
= CStringGetTextDatum(nodeToString(qual));
else
isnull[Anum_pg_rowsecurity_rsecqual - 1] = true;
isnull[Anum_pg_policy_polqual - 1] = true;
/* Add WITH CHECK qual if present */
if (with_check_qual)
values[Anum_pg_rowsecurity_rsecwithcheck - 1]
values[Anum_pg_policy_polwithcheck - 1]
= CStringGetTextDatum(nodeToString(with_check_qual));
else
isnull[Anum_pg_rowsecurity_rsecwithcheck - 1] = true;
isnull[Anum_pg_policy_polwithcheck - 1] = true;
rsec_tuple = heap_form_tuple(RelationGetDescr(pg_rowsecurity_rel), values,
isnull);
policy_tuple = heap_form_tuple(RelationGetDescr(pg_policy_rel), values,
isnull);
rowsec_id = simple_heap_insert(pg_rowsecurity_rel, rsec_tuple);
policy_id = simple_heap_insert(pg_policy_rel, policy_tuple);
/* Update Indexes */
CatalogUpdateIndexes(pg_rowsecurity_rel, rsec_tuple);
CatalogUpdateIndexes(pg_policy_rel, policy_tuple);
/* Record Dependencies */
target.classId = RelationRelationId;
target.objectId = table_id;
target.objectSubId = 0;
myself.classId = RowSecurityRelationId;
myself.objectId = rowsec_id;
myself.classId = PolicyRelationId;
myself.objectId = policy_id;
myself.objectSubId = 0;
recordDependencyOn(&myself, &target, DEPENDENCY_AUTO);
@ -609,14 +608,14 @@ CreatePolicy(CreatePolicyStmt *stmt)
CacheInvalidateRelcache(target_table);
/* Clean up. */
heap_freetuple(rsec_tuple);
heap_freetuple(policy_tuple);
free_parsestate(qual_pstate);
free_parsestate(with_check_pstate);
systable_endscan(sscan);
relation_close(target_table, NoLock);
heap_close(pg_rowsecurity_rel, RowExclusiveLock);
heap_close(pg_policy_rel, RowExclusiveLock);
return rowsec_id;
return policy_id;
}
/*
@ -628,8 +627,8 @@ CreatePolicy(CreatePolicyStmt *stmt)
Oid
AlterPolicy(AlterPolicyStmt *stmt)
{
Relation pg_rowsecurity_rel;
Oid rowsec_id;
Relation pg_policy_rel;
Oid policy_id;
Relation target_table;
Oid table_id;
ArrayType *role_ids = NULL;
@ -639,20 +638,20 @@ AlterPolicy(AlterPolicyStmt *stmt)
Node *with_check_qual = NULL;
ScanKeyData skey[2];
SysScanDesc sscan;
HeapTuple rsec_tuple;
HeapTuple policy_tuple;
HeapTuple new_tuple;
Datum values[Natts_pg_rowsecurity];
bool isnull[Natts_pg_rowsecurity];
bool replaces[Natts_pg_rowsecurity];
Datum values[Natts_pg_policy];
bool isnull[Natts_pg_policy];
bool replaces[Natts_pg_policy];
ObjectAddress target;
ObjectAddress myself;
Datum cmd_datum;
char rseccmd;
bool rseccmd_isnull;
char polcmd;
bool polcmd_isnull;
/* Parse role_ids */
if (stmt->roles != NULL)
role_ids = rls_role_list_to_array(stmt->roles);
role_ids = policy_role_list_to_array(stmt->roles);
/* Get id of table. Also handles permissions checks. */
table_id = RangeVarGetRelidExtended(stmt->table, AccessExclusiveLock,
@ -662,7 +661,7 @@ AlterPolicy(AlterPolicyStmt *stmt)
target_table = relation_open(table_id, NoLock);
/* Parse the row-security clause */
/* Parse the using policy clause */
if (stmt->qual)
{
RangeTblEntry *rte;
@ -675,13 +674,13 @@ AlterPolicy(AlterPolicyStmt *stmt)
qual = transformWhereClause(qual_pstate, copyObject(stmt->qual),
EXPR_KIND_WHERE,
"ROW SECURITY");
"POLICY");
qual_parse_rtable = qual_pstate->p_rtable;
free_parsestate(qual_pstate);
}
/* Parse the with-check row-security clause */
/* Parse the with-check policy clause */
if (stmt->with_check)
{
RangeTblEntry *rte;
@ -695,7 +694,7 @@ AlterPolicy(AlterPolicyStmt *stmt)
with_check_qual = transformWhereClause(with_check_pstate,
copyObject(stmt->with_check),
EXPR_KIND_WHERE,
"ROW SECURITY");
"POLICY");
with_check_parse_rtable = with_check_pstate->p_rtable;
free_parsestate(with_check_pstate);
@ -707,28 +706,28 @@ AlterPolicy(AlterPolicyStmt *stmt)
memset(isnull, 0, sizeof(isnull));
/* Find policy to update. */
pg_rowsecurity_rel = heap_open(RowSecurityRelationId, RowExclusiveLock);
pg_policy_rel = heap_open(PolicyRelationId, RowExclusiveLock);
/* Set key - row security relation id. */
/* Set key - policy's relation id. */
ScanKeyInit(&skey[0],
Anum_pg_rowsecurity_rsecrelid,
Anum_pg_policy_polrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(table_id));
/* Set key - row security policy name. */
/* Set key - policy's name. */
ScanKeyInit(&skey[1],
Anum_pg_rowsecurity_rsecpolname,
Anum_pg_policy_polname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(stmt->policy_name));
sscan = systable_beginscan(pg_rowsecurity_rel,
RowSecurityRelidPolnameIndexId, true, NULL, 2,
sscan = systable_beginscan(pg_policy_rel,
PolicyPolrelidPolnameIndexId, true, NULL, 2,
skey);
rsec_tuple = systable_getnext(sscan);
policy_tuple = systable_getnext(sscan);
/* Check that the policy is found, raise an error if not. */
if (!HeapTupleIsValid(rsec_tuple))
if (!HeapTupleIsValid(policy_tuple))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
errmsg("policy \"%s\" on table \"%s\" does not exist",
@ -736,18 +735,18 @@ AlterPolicy(AlterPolicyStmt *stmt)
RelationGetRelationName(target_table))));
/* Get policy command */
cmd_datum = heap_getattr(rsec_tuple, Anum_pg_rowsecurity_rseccmd,
RelationGetDescr(pg_rowsecurity_rel),
&rseccmd_isnull);
if (rseccmd_isnull)
rseccmd = 0;
cmd_datum = heap_getattr(policy_tuple, Anum_pg_policy_polcmd,
RelationGetDescr(pg_policy_rel),
&polcmd_isnull);
if (polcmd_isnull)
polcmd = 0;
else
rseccmd = DatumGetChar(cmd_datum);
polcmd = DatumGetChar(cmd_datum);
/*
* If the command is SELECT or DELETE then WITH CHECK should be NULL.
*/
if ((rseccmd == ACL_SELECT_CHR || rseccmd == ACL_DELETE_CHR)
if ((polcmd == ACL_SELECT_CHR || polcmd == ACL_DELETE_CHR)
&& stmt->with_check != NULL)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
@ -757,52 +756,52 @@ AlterPolicy(AlterPolicyStmt *stmt)
* If the command is INSERT then WITH CHECK should be the only
* expression provided.
*/
if ((rseccmd == ACL_INSERT_CHR)
if ((polcmd == ACL_INSERT_CHR)
&& stmt->qual != NULL)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("only WITH CHECK expression allowed for INSERT")));
rowsec_id = HeapTupleGetOid(rsec_tuple);
policy_id = HeapTupleGetOid(policy_tuple);
if (role_ids != NULL)
{
replaces[Anum_pg_rowsecurity_rsecroles - 1] = true;
values[Anum_pg_rowsecurity_rsecroles - 1] = PointerGetDatum(role_ids);
replaces[Anum_pg_policy_polroles - 1] = true;
values[Anum_pg_policy_polroles - 1] = PointerGetDatum(role_ids);
}
if (qual != NULL)
{
replaces[Anum_pg_rowsecurity_rsecqual - 1] = true;
values[Anum_pg_rowsecurity_rsecqual - 1]
replaces[Anum_pg_policy_polqual - 1] = true;
values[Anum_pg_policy_polqual - 1]
= CStringGetTextDatum(nodeToString(qual));
}
if (with_check_qual != NULL)
{
replaces[Anum_pg_rowsecurity_rsecwithcheck - 1] = true;
values[Anum_pg_rowsecurity_rsecwithcheck - 1]
replaces[Anum_pg_policy_polwithcheck - 1] = true;
values[Anum_pg_policy_polwithcheck - 1]
= CStringGetTextDatum(nodeToString(with_check_qual));
}
new_tuple = heap_modify_tuple(rsec_tuple,
RelationGetDescr(pg_rowsecurity_rel),
new_tuple = heap_modify_tuple(policy_tuple,
RelationGetDescr(pg_policy_rel),
values, isnull, replaces);
simple_heap_update(pg_rowsecurity_rel, &new_tuple->t_self, new_tuple);
simple_heap_update(pg_policy_rel, &new_tuple->t_self, new_tuple);
/* Update Catalog Indexes */
CatalogUpdateIndexes(pg_rowsecurity_rel, new_tuple);
CatalogUpdateIndexes(pg_policy_rel, new_tuple);
/* Update Dependencies. */
deleteDependencyRecordsFor(RowSecurityRelationId, rowsec_id, false);
deleteDependencyRecordsFor(PolicyRelationId, policy_id, false);
/* Record Dependencies */
target.classId = RelationRelationId;
target.objectId = table_id;
target.objectSubId = 0;
myself.classId = RowSecurityRelationId;
myself.objectId = rowsec_id;
myself.classId = PolicyRelationId;
myself.objectId = policy_id;
myself.objectSubId = 0;
recordDependencyOn(&myself, &target, DEPENDENCY_AUTO);
@ -820,9 +819,9 @@ AlterPolicy(AlterPolicyStmt *stmt)
/* Clean up. */
systable_endscan(sscan);
relation_close(target_table, NoLock);
heap_close(pg_rowsecurity_rel, RowExclusiveLock);
heap_close(pg_policy_rel, RowExclusiveLock);
return rowsec_id;
return policy_id;
}
/*
@ -832,13 +831,13 @@ AlterPolicy(AlterPolicyStmt *stmt)
Oid
rename_policy(RenameStmt *stmt)
{
Relation pg_rowsecurity_rel;
Relation pg_policy_rel;
Relation target_table;
Oid table_id;
Oid opoloid;
ScanKeyData skey[2];
SysScanDesc sscan;
HeapTuple rsec_tuple;
HeapTuple policy_tuple;
/* Get id of table. Also handles permissions checks. */
table_id = RangeVarGetRelidExtended(stmt->relation, AccessExclusiveLock,
@ -848,74 +847,74 @@ rename_policy(RenameStmt *stmt)
target_table = relation_open(table_id, NoLock);
pg_rowsecurity_rel = heap_open(RowSecurityRelationId, RowExclusiveLock);
pg_policy_rel = heap_open(PolicyRelationId, RowExclusiveLock);
/* First pass -- check for conflict */
/* Add key - row security relation id. */
/* Add key - policy's relation id. */
ScanKeyInit(&skey[0],
Anum_pg_rowsecurity_rsecrelid,
Anum_pg_policy_polrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(table_id));
/* Add key - row security policy name. */
/* Add key - policy's name. */
ScanKeyInit(&skey[1],
Anum_pg_rowsecurity_rsecpolname,
Anum_pg_policy_polname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(stmt->newname));
sscan = systable_beginscan(pg_rowsecurity_rel,
RowSecurityRelidPolnameIndexId, true, NULL, 2,
sscan = systable_beginscan(pg_policy_rel,
PolicyPolrelidPolnameIndexId, true, NULL, 2,
skey);
if (HeapTupleIsValid(systable_getnext(sscan)))
ereport(ERROR,
(errcode(ERRCODE_DUPLICATE_OBJECT),
errmsg("row-policy \"%s\" for table \"%s\" already exists",
errmsg("policy \"%s\" for table \"%s\" already exists",
stmt->newname, RelationGetRelationName(target_table))));
systable_endscan(sscan);
/* Second pass -- find existing policy and update */
/* Add key - row security relation id. */
/* Add key - policy's relation id. */
ScanKeyInit(&skey[0],
Anum_pg_rowsecurity_rsecrelid,
Anum_pg_policy_polrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(table_id));
/* Add key - row security policy name. */
/* Add key - policy's name. */
ScanKeyInit(&skey[1],
Anum_pg_rowsecurity_rsecpolname,
Anum_pg_policy_polname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(stmt->subname));
sscan = systable_beginscan(pg_rowsecurity_rel,
RowSecurityRelidPolnameIndexId, true, NULL, 2,
sscan = systable_beginscan(pg_policy_rel,
PolicyPolrelidPolnameIndexId, true, NULL, 2,
skey);
rsec_tuple = systable_getnext(sscan);
policy_tuple = systable_getnext(sscan);
/* Complain if we did not find the policy */
if (!HeapTupleIsValid(rsec_tuple))
if (!HeapTupleIsValid(policy_tuple))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
errmsg("row-policy \"%s\" for table \"%s\" does not exist",
errmsg("policy \"%s\" for table \"%s\" does not exist",
stmt->subname, RelationGetRelationName(target_table))));
opoloid = HeapTupleGetOid(rsec_tuple);
opoloid = HeapTupleGetOid(policy_tuple);
rsec_tuple = heap_copytuple(rsec_tuple);
policy_tuple = heap_copytuple(policy_tuple);
namestrcpy(&((Form_pg_rowsecurity) GETSTRUCT(rsec_tuple))->rsecpolname,
namestrcpy(&((Form_pg_policy) GETSTRUCT(policy_tuple))->polname,
stmt->newname);
simple_heap_update(pg_rowsecurity_rel, &rsec_tuple->t_self, rsec_tuple);
simple_heap_update(pg_policy_rel, &policy_tuple->t_self, policy_tuple);
/* keep system catalog indexes current */
CatalogUpdateIndexes(pg_rowsecurity_rel, rsec_tuple);
CatalogUpdateIndexes(pg_policy_rel, policy_tuple);
InvokeObjectPostAlterHook(RowSecurityRelationId,
HeapTupleGetOid(rsec_tuple), 0);
InvokeObjectPostAlterHook(PolicyRelationId,
HeapTupleGetOid(policy_tuple), 0);
/*
* Invalidate relation's relcache entry so that other backends (and
@ -926,7 +925,7 @@ rename_policy(RenameStmt *stmt)
/* Clean up. */
systable_endscan(sscan);
heap_close(pg_rowsecurity_rel, RowExclusiveLock);
heap_close(pg_policy_rel, RowExclusiveLock);
relation_close(target_table, NoLock);
return opoloid;
@ -941,33 +940,33 @@ rename_policy(RenameStmt *stmt)
Oid
get_relation_policy_oid(Oid relid, const char *policy_name, bool missing_ok)
{
Relation pg_rowsecurity_rel;
Relation pg_policy_rel;
ScanKeyData skey[2];
SysScanDesc sscan;
HeapTuple rsec_tuple;
HeapTuple policy_tuple;
Oid policy_oid;
pg_rowsecurity_rel = heap_open(RowSecurityRelationId, AccessShareLock);
pg_policy_rel = heap_open(PolicyRelationId, AccessShareLock);
/* Add key - row security relation id. */
/* Add key - policy's relation id. */
ScanKeyInit(&skey[0],
Anum_pg_rowsecurity_rsecrelid,
Anum_pg_policy_polrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(relid));
/* Add key - row security policy name. */
/* Add key - policy's name. */
ScanKeyInit(&skey[1],
Anum_pg_rowsecurity_rsecpolname,
Anum_pg_policy_polname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(policy_name));
sscan = systable_beginscan(pg_rowsecurity_rel,
RowSecurityRelidPolnameIndexId, true, NULL, 2,
sscan = systable_beginscan(pg_policy_rel,
PolicyPolrelidPolnameIndexId, true, NULL, 2,
skey);
rsec_tuple = systable_getnext(sscan);
policy_tuple = systable_getnext(sscan);
if (!HeapTupleIsValid(rsec_tuple))
if (!HeapTupleIsValid(policy_tuple))
{
if (!missing_ok)
ereport(ERROR,
@ -978,11 +977,11 @@ get_relation_policy_oid(Oid relid, const char *policy_name, bool missing_ok)
policy_oid = InvalidOid;
}
else
policy_oid = HeapTupleGetOid(rsec_tuple);
policy_oid = HeapTupleGetOid(policy_tuple);
/* Clean up. */
systable_endscan(sscan);
heap_close(pg_rowsecurity_rel, AccessShareLock);
heap_close(pg_policy_rel, AccessShareLock);
return policy_oid;
}

19
src/backend/commands/tablecmds.c
View File

@ -37,7 +37,6 @@
#include "catalog/pg_inherits_fn.h"
#include "catalog/pg_namespace.h"
#include "catalog/pg_opclass.h"
#include "catalog/pg_rowsecurity.h"
#include "catalog/pg_tablespace.h"
#include "catalog/pg_trigger.h"
#include "catalog/pg_type.h"
@ -7986,6 +7985,24 @@ ATExecAlterColumnType(AlteredTableInfo *tab, Relation rel,
colName)));
break;
case OCLASS_POLICY:
/*
* A policy can depend on a column because the column is
* specified in the policy's USING or WITH CHECK qual
* expressions. It might be possible to rewrite and recheck
* the policy expression, but punt for now. It's certainly
* easy enough to remove and recreate the policy; still,
* FIXME someday.
*/
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot alter type of a column used in a policy definition"),
errdetail("%s depends on column \"%s\"",
getObjectDescription(&foundObject),
colName)));
break;
case OCLASS_DEFAULT:
/*

2
src/backend/executor/execMain.c
View File

@ -502,7 +502,7 @@ ExecutorRewind(QueryDesc *queryDesc)
* Returns true if permissions are adequate. Otherwise, throws an appropriate
* error if ereport_on_violation is true, or simply returns false otherwise.
*
* Note that this does NOT address row-level security policies (aka: RLS). If
* Note that this does NOT address row level security policies (aka: RLS). If
* rows will be returned to the user as a result of this permission check
* passing, then RLS also needs to be consulted (and check_enable_rls()).
*

2
src/backend/optimizer/path/allpaths.c
View File

@ -1171,7 +1171,7 @@ set_subquery_pathlist(PlannerInfo *root, RelOptInfo *rel,
/*
* If the subquery has the "security_barrier" flag, it means the subquery
* originated from a view that must enforce row-level security. Then we
* originated from a view that must enforce row level security. Then we
* must not push down quals that contain leaky functions. (Ideally this
* would be checked inside subquery_is_pushdown_safe, but since we don't
* currently pass the RTE to that function, we must do it here.)

6
src/backend/optimizer/plan/planner.c
View File

@ -177,7 +177,7 @@ standard_planner(Query *parse, int cursorOptions, ParamListInfo boundParams)
glob->lastPHId = 0;
glob->lastRowMarkId = 0;
glob->transientPlan = false;
glob->has_rls = false;
glob->hasRowSecurity = false;
/* Determine what fraction of the plan is likely to be scanned */
if (cursorOptions & CURSOR_OPT_FAST_PLAN)
@ -255,7 +255,7 @@ standard_planner(Query *parse, int cursorOptions, ParamListInfo boundParams)
result->relationOids = glob->relationOids;
result->invalItems = glob->invalItems;
result->nParamExec = glob->nParamExec;
result->has_rls = glob->has_rls;
result->hasRowSecurity = glob->hasRowSecurity;
return result;
}
@ -1208,7 +1208,7 @@ grouping_planner(PlannerInfo *root, double tuple_fraction)
* This may add new security barrier subquery RTEs to the rangetable.
*/
expand_security_quals(root, tlist);
root->glob->has_rls = parse->hasRowSecurity;
root->glob->hasRowSecurity = parse->hasRowSecurity;
/*
* Locate any window functions in the tlist. (We don't need to look

8
src/backend/optimizer/plan/setrefs.c
View File

@ -2109,7 +2109,7 @@ extract_query_dependencies(Node *query,
glob.type = T_PlannerGlobal;
glob.relationOids = NIL;
glob.invalItems = NIL;
glob.has_rls = false;
glob.hasRowSecurity = false;
MemSet(&root, 0, sizeof(root));
root.type = T_PlannerInfo;
@ -2119,7 +2119,7 @@ extract_query_dependencies(Node *query,
*relationOids = glob.relationOids;
*invalItems = glob.invalItems;
*hasRowSecurity = glob.has_rls;
*hasRowSecurity = glob.hasRowSecurity;
}
static bool
@ -2135,8 +2135,8 @@ extract_query_dependencies_walker(Node *node, PlannerInfo *context)
Query *query = (Query *) node;
ListCell *lc;
/* Collect row-security information */
context->glob->has_rls = query->hasRowSecurity;
/* Collect row security information */
context->glob->hasRowSecurity = query->hasRowSecurity;
if (query->commandType == CMD_UTILITY)
{

11
src/backend/parser/gram.y
View File

@ -5535,7 +5535,7 @@ opt_restart_seqs:
* COMMENT ON [ [ CONVERSION | COLLATION | DATABASE | DOMAIN |
* EXTENSION | EVENT TRIGGER | FOREIGN DATA WRAPPER |
* FOREIGN TABLE | INDEX | [PROCEDURAL] LANGUAGE |
* MATERIALIZED VIEW | ROLE | SCHEMA | SEQUENCE |
* MATERIALIZED VIEW | POLICY | ROLE | SCHEMA | SEQUENCE |
* SERVER | TABLE | TABLESPACE |
* TEXT SEARCH CONFIGURATION | TEXT SEARCH DICTIONARY |
* TEXT SEARCH PARSER | TEXT SEARCH TEMPLATE | TYPE |
@ -5601,6 +5601,15 @@ CommentStmt:
n->comment = $8;
$$ = (Node *) n;
}
| COMMENT ON POLICY name ON any_name IS comment_text
{
CommentStmt *n = makeNode(CommentStmt);
n->objtype = OBJECT_POLICY;
n->objname = lappend($6, makeString($4));
n->objargs = NIL;
n->comment = $8;
$$ = (Node *) n;
}
| COMMENT ON RULE name ON any_name IS comment_text
{
CommentStmt *n = makeNode(CommentStmt);

4
src/backend/rewrite/rewriteHandler.c
View File

@ -1715,7 +1715,7 @@ fireRIRrules(Query *parsetree, List *activeRIRs, bool forUpdatePushedDown)
}
}
/*
* If the RTE has row-security quals, apply them and recurse into the
* If the RTE has row security quals, apply them and recurse into the
* securityQuals.
*/
if (prepend_row_security_policies(parsetree, rte, rt_index))
@ -1727,7 +1727,7 @@ fireRIRrules(Query *parsetree, List *activeRIRs, bool forUpdatePushedDown)
if (list_member_oid(activeRIRs, RelationGetRelid(rel)))
ereport(ERROR,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("infinite recursion detected in row-security policy for relation \"%s\"",
errmsg("infinite recursion detected in policy for relation \"%s\"",
RelationGetRelationName(rel))));
/*

14
src/backend/rewrite/rowsecurity.c
View File

@ -1,6 +1,6 @@
/*
* rewrite/rowsecurity.c
* Routines to support policies for row-level security.
* Routines to support policies for row level security (aka RLS).
*
* Policies in PostgreSQL provide a mechanism to limit what records are
* returned to a user and what records a user is permitted to add to a table.
@ -38,7 +38,7 @@
#include "access/sysattr.h"
#include "catalog/pg_class.h"
#include "catalog/pg_inherits_fn.h"
#include "catalog/pg_rowsecurity.h"
#include "catalog/pg_policy.h"
#include "catalog/pg_type.h"
#include "miscadmin.h"
#include "nodes/makefuncs.h"
@ -72,8 +72,8 @@ static bool check_role_for_policy(ArrayType *policy_roles, Oid user_id);
row_security_policy_hook_type row_security_policy_hook = NULL;
/*
* Check the given RTE to see whether it's already had row-security quals
* expanded and, if not, prepend any row-security rules from built-in or
* Check the given RTE to see whether it's already had row security quals
* expanded and, if not, prepend any row security rules from built-in or
* plug-in sources to the securityQuals. The security quals are rewritten (for
* view expansion, etc) before being added to the RTE.
*
@ -154,14 +154,14 @@ prepend_row_security_policies(Query* root, RangeTblEntry* rte, int rt_index)
/*
* Check if this is only the default-deny policy.
*
* Normally, if the table has row-security enabled but there are
* Normally, if the table has row security enabled but there are
* no policies, we use a default-deny policy and not allow anything.
* However, when an extension uses the hook to add their own
* policies, we don't want to include the default deny policy or
* there won't be any way for a user to use an extension exclusively
* for the policies to be used.
*/
if (((RowSecurityPolicy *) linitial(rowsec_policies))->rsecid
if (((RowSecurityPolicy *) linitial(rowsec_policies))->policy_id
== InvalidOid)
defaultDeny = true;
@ -353,7 +353,7 @@ pull_row_security_policies(CmdType cmd, Relation relation, Oid user_id)
policy = palloc0(sizeof(RowSecurityPolicy));
policy->policy_name = pstrdup("default-deny policy");
policy->rsecid = InvalidOid;
policy->policy_id = InvalidOid;
policy->cmd = '\0';
policy->roles = construct_array(&role, 1, OIDOID, sizeof(Oid), true,
'i');

8
src/backend/utils/cache/plancache.c vendored
View File

@ -207,7 +207,7 @@ CreateCachedPlan(Node *raw_parse_tree,
plansource->generic_cost = -1;
plansource->total_custom_cost = 0;
plansource->num_custom_plans = 0;
plansource->has_rls = false;
plansource->hasRowSecurity = false;
plansource->rowSecurityDisabled
= (security_context & SECURITY_ROW_LEVEL_DISABLED) != 0;
plansource->row_security_env = row_security;
@ -383,7 +383,7 @@ CompleteCachedPlan(CachedPlanSource *plansource,
extract_query_dependencies((Node *) querytree_list,
&plansource->relationOids,
&plansource->invalItems,
&plansource->has_rls);
&plansource->hasRowSecurity);
/*
* Also save the current search_path in the query_context. (This
@ -617,7 +617,7 @@ RevalidateCachedQuery(CachedPlanSource *plansource)
*/
if (plansource->is_valid
&& !plansource->rowSecurityDisabled
&& plansource->has_rls
&& plansource->hasRowSecurity
&& (plansource->planUserId != GetUserId()
|| plansource->row_security_env != row_security))
plansource->is_valid = false;
@ -766,7 +766,7 @@ RevalidateCachedQuery(CachedPlanSource *plansource)
extract_query_dependencies((Node *) qlist,
&plansource->relationOids,
&plansource->invalItems,
&plansource->has_rls);
&plansource->hasRowSecurity);
/*
* Also save the current search_path in the query_context. (This should

4
src/backend/utils/cache/relcache.c vendored
View File

@ -866,7 +866,7 @@ equalPolicy(RowSecurityPolicy *policy1, RowSecurityPolicy *policy2)
if (policy2 == NULL)
return false;
if (policy1->rsecid != policy2->rsecid)
if (policy1->policy_id != policy2->policy_id)
return false;
if (policy1->cmd != policy2->cmd)
return false;
@ -3439,7 +3439,7 @@ RelationCacheInitializePhase3(void)
* they are not preserved in the cache. Note that we can never NOT
* have a policy while relrowsecurity is true,
* RelationBuildRowSecurity will create a single default-deny policy
* if there is no policy defined in pg_rowsecurity.
* if there is no policy defined in pg_policy.
*/
if (relation->rd_rel->relrowsecurity && relation->rd_rsdesc == NULL)
{

4
src/bin/pg_dump/common.c
View File

@ -248,8 +248,8 @@ getSchemaData(Archive *fout, DumpOptions *dopt, int *numTablesPtr)
getRules(fout, &numRules);
if (g_verbose)
write_msg(NULL, "reading row-security policies\n");
getRowSecurity(fout, tblinfo, numTables);
write_msg(NULL, "reading policies\n");
getPolicies(fout, tblinfo, numTables);
*numTablesPtr = numTables;
return tblinfo;

1
src/bin/pg_dump/pg_backup_archiver.c
View File

@ -3328,6 +3328,7 @@ _printTocEntry(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt, bool isDat
strcmp(te->desc, "RULE") == 0 ||
strcmp(te->desc, "TRIGGER") == 0 ||
strcmp(te->desc, "ROW SECURITY") == 0 ||
strcmp(te->desc, "POLICY") == 0 ||
strcmp(te->desc, "USER MAPPING") == 0)
{
/* these object types don't have separate owners */

185
src/bin/pg_dump/pg_dump.c
View File

@ -233,7 +233,7 @@ static char *myFormatType(const char *typname, int32 typmod);
static void getBlobs(Archive *fout);
static void dumpBlob(Archive *fout, DumpOptions *dopt, BlobInfo *binfo);
static int dumpBlobs(Archive *fout, DumpOptions *dopt, void *arg);
static void dumpRowSecurity(Archive *fout, DumpOptions *dopt, RowSecurityInfo *rsinfo);
static void dumpPolicy(Archive *fout, DumpOptions *dopt, PolicyInfo *polinfo);
static void dumpDatabase(Archive *AH, DumpOptions *dopt);
static void dumpEncoding(Archive *AH);
static void dumpStdStrings(Archive *AH);
@ -2765,22 +2765,22 @@ dumpBlobs(Archive *fout, DumpOptions *dopt, void *arg)
}
/*
* getRowSecurity
* get information about every row-security policy on a dumpable table.
* getPolicies
* get information about policies on a dumpable table.
*/
void
getRowSecurity(Archive *fout, TableInfo tblinfo[], int numTables)
getPolicies(Archive *fout, TableInfo tblinfo[], int numTables)
{
PQExpBuffer query;
PGresult *res;
RowSecurityInfo *rsinfo;
PolicyInfo *polinfo;
int i_oid;
int i_tableoid;
int i_rsecpolname;
int i_rseccmd;
int i_rsecroles;
int i_rsecqual;
int i_rsecwithcheck;
int i_polname;
int i_polcmd;
int i_polroles;
int i_polqual;
int i_polwithcheck;
int i,
j,
ntups;
@ -2794,18 +2794,18 @@ getRowSecurity(Archive *fout, TableInfo tblinfo[], int numTables)
{
TableInfo *tbinfo = &tblinfo[i];
/* Ignore row-security on tables not to be dumped */
/* Ignore row security on tables not to be dumped */
if (!tbinfo->dobj.dump)
continue;
if (g_verbose)
write_msg(NULL, "reading row-security enabled for table \"%s\".\"%s\"\n",
write_msg(NULL, "reading row security enabled for table \"%s\".\"%s\"\n",
tbinfo->dobj.namespace->dobj.name,
tbinfo->dobj.name);
/*
* Get row-security enabled information for the table. We represent
* RLS enabled on a table by creating RowSecurityInfo object with an
* Get row security enabled information for the table. We represent
* RLS enabled on a table by creating PolicyInfo object with an
* empty policy.
*/
if (tbinfo->rowsec)
@ -2814,23 +2814,23 @@ getRowSecurity(Archive *fout, TableInfo tblinfo[], int numTables)
* Note: use tableoid 0 so that this object won't be mistaken for
* something that pg_depend entries apply to.
*/
rsinfo = pg_malloc(sizeof(RowSecurityInfo));
rsinfo->dobj.objType = DO_ROW_SECURITY;
rsinfo->dobj.catId.tableoid = 0;
rsinfo->dobj.catId.oid = tbinfo->dobj.catId.oid;
AssignDumpId(&rsinfo->dobj);
rsinfo->dobj.namespace = tbinfo->dobj.namespace;
rsinfo->dobj.name = pg_strdup(tbinfo->dobj.name);
rsinfo->rstable = tbinfo;
rsinfo->rsecpolname = NULL;
rsinfo->rseccmd = NULL;
rsinfo->rsecroles = NULL;
rsinfo->rsecqual = NULL;
rsinfo->rsecwithcheck = NULL;
polinfo = pg_malloc(sizeof(PolicyInfo));
polinfo->dobj.objType = DO_POLICY;
polinfo->dobj.catId.tableoid = 0;
polinfo->dobj.catId.oid = tbinfo->dobj.catId.oid;
AssignDumpId(&polinfo->dobj);
polinfo->dobj.namespace = tbinfo->dobj.namespace;
polinfo->dobj.name = pg_strdup(tbinfo->dobj.name);
polinfo->poltable = tbinfo;
polinfo->polname = NULL;
polinfo->polcmd = NULL;
polinfo->polroles = NULL;
polinfo->polqual = NULL;
polinfo->polwithcheck = NULL;
}
if (g_verbose)
write_msg(NULL, "reading row-security policies for table \"%s\".\"%s\"\n",
write_msg(NULL, "reading policies for table \"%s\".\"%s\"\n",
tbinfo->dobj.namespace->dobj.name,
tbinfo->dobj.name);
@ -2843,13 +2843,13 @@ getRowSecurity(Archive *fout, TableInfo tblinfo[], int numTables)
/* Get the policies for the table. */
appendPQExpBuffer(query,
"SELECT oid, tableoid, s.rsecpolname, s.rseccmd, "
"CASE WHEN s.rsecroles = '{0}' THEN 'PUBLIC' ELSE "
" array_to_string(ARRAY(SELECT rolname from pg_roles WHERE oid = ANY(s.rsecroles)), ', ') END AS rsecroles, "
"pg_get_expr(s.rsecqual, s.rsecrelid) AS rsecqual, "
"pg_get_expr(s.rsecwithcheck, s.rsecrelid) AS rsecwithcheck "
"FROM pg_catalog.pg_rowsecurity s "
"WHERE rsecrelid = '%u'",
"SELECT oid, tableoid, pol.polname, pol.polcmd, "
"CASE WHEN pol.polroles = '{0}' THEN 'PUBLIC' ELSE "
" array_to_string(ARRAY(SELECT rolname from pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, "
"pg_get_expr(pol.polqual, pol.polrelid) AS polqual, "
"pg_get_expr(pol.polwithcheck, pol.polrelid) AS polwithcheck "
"FROM pg_catalog.pg_policy pol "
"WHERE polrelid = '%u'",
tbinfo->dobj.catId.oid);
res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK);
@ -2868,45 +2868,44 @@ getRowSecurity(Archive *fout, TableInfo tblinfo[], int numTables)
i_oid = PQfnumber(res, "oid");
i_tableoid = PQfnumber(res, "tableoid");
i_rsecpolname = PQfnumber(res, "rsecpolname");
i_rseccmd = PQfnumber(res, "rseccmd");
i_rsecroles = PQfnumber(res, "rsecroles");
i_rsecqual = PQfnumber(res, "rsecqual");
i_rsecwithcheck = PQfnumber(res, "rsecwithcheck");
i_polname = PQfnumber(res, "polname");
i_polcmd = PQfnumber(res, "polcmd");
i_polroles = PQfnumber(res, "polroles");
i_polqual = PQfnumber(res, "polqual");
i_polwithcheck = PQfnumber(res, "polwithcheck");
rsinfo = pg_malloc(ntups * sizeof(RowSecurityInfo));
polinfo = pg_malloc(ntups * sizeof(PolicyInfo));
for (j = 0; j < ntups; j++)
{
rsinfo[j].dobj.objType = DO_ROW_SECURITY;
rsinfo[j].dobj.catId.tableoid =
polinfo[j].dobj.objType = DO_POLICY;
polinfo[j].dobj.catId.tableoid =
atooid(PQgetvalue(res, j, i_tableoid));
rsinfo[j].dobj.catId.oid = atooid(PQgetvalue(res, j, i_oid));
AssignDumpId(&rsinfo[j].dobj);
rsinfo[j].dobj.namespace = tbinfo->dobj.namespace;
rsinfo[j].rstable = tbinfo;
rsinfo[j].rsecpolname = pg_strdup(PQgetvalue(res, j,
i_rsecpolname));
polinfo[j].dobj.catId.oid = atooid(PQgetvalue(res, j, i_oid));
AssignDumpId(&polinfo[j].dobj);
polinfo[j].dobj.namespace = tbinfo->dobj.namespace;
polinfo[j].poltable = tbinfo;
polinfo[j].polname = pg_strdup(PQgetvalue(res, j, i_polname));
rsinfo[j].dobj.name = pg_strdup(rsinfo[j].rsecpolname);
polinfo[j].dobj.name = pg_strdup(polinfo[j].polname);
if (PQgetisnull(res, j, i_rseccmd))
rsinfo[j].rseccmd = NULL;
if (PQgetisnull(res, j, i_polcmd))
polinfo[j].polcmd = NULL;
else
rsinfo[j].rseccmd = pg_strdup(PQgetvalue(res, j, i_rseccmd));
polinfo[j].polcmd = pg_strdup(PQgetvalue(res, j, i_polcmd));
rsinfo[j].rsecroles = pg_strdup(PQgetvalue(res, j, i_rsecroles));
polinfo[j].polroles = pg_strdup(PQgetvalue(res, j, i_polroles));
if (PQgetisnull(res, j, i_rsecqual))
rsinfo[j].rsecqual = NULL;
if (PQgetisnull(res, j, i_polqual))
polinfo[j].polqual = NULL;
else
rsinfo[j].rsecqual = pg_strdup(PQgetvalue(res, j, i_rsecqual));
polinfo[j].polqual = pg_strdup(PQgetvalue(res, j, i_polqual));
if (PQgetisnull(res, j, i_rsecwithcheck))
rsinfo[j].rsecwithcheck = NULL;
if (PQgetisnull(res, j, i_polwithcheck))
polinfo[j].polwithcheck = NULL;
else
rsinfo[j].rsecwithcheck
= pg_strdup(PQgetvalue(res, j, i_rsecwithcheck));
polinfo[j].polwithcheck
= pg_strdup(PQgetvalue(res, j, i_polwithcheck));
}
PQclear(res);
}
@ -2914,13 +2913,13 @@ getRowSecurity(Archive *fout, TableInfo tblinfo[], int numTables)
}
/*
* dumpRowSecurity
* dump the definition of the given row-security policy
* dumpPolicy
* dump the definition of the given policy
*/
static void
dumpRowSecurity(Archive *fout, DumpOptions *dopt, RowSecurityInfo *rsinfo)
dumpPolicy(Archive *fout, DumpOptions *dopt, PolicyInfo *polinfo)
{
TableInfo *tbinfo = rsinfo->rstable;
TableInfo *tbinfo = polinfo->poltable;
PQExpBuffer query;
PQExpBuffer delqry;
const char *cmd;
@ -2929,23 +2928,23 @@ dumpRowSecurity(Archive *fout, DumpOptions *dopt, RowSecurityInfo *rsinfo)
return;
/*
* If rsecpolname is NULL, then this record is just indicating that ROW
* If polname is NULL, then this record is just indicating that ROW
* LEVEL SECURITY is enabled for the table. Dump as ALTER TABLE <table>
* ENABLE ROW LEVEL SECURITY.
*/
if (rsinfo->rsecpolname == NULL)
if (polinfo->polname == NULL)
{
query = createPQExpBuffer();
appendPQExpBuffer(query, "ALTER TABLE %s ENABLE ROW LEVEL SECURITY;",
fmtId(rsinfo->dobj.name));
fmtId(polinfo->dobj.name));
ArchiveEntry(fout, rsinfo->dobj.catId, rsinfo->dobj.dumpId,
rsinfo->dobj.name,
rsinfo->dobj.namespace->dobj.name,
ArchiveEntry(fout, polinfo->dobj.catId, polinfo->dobj.dumpId,
polinfo->dobj.name,
polinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname, false,
"ROW SECURITY", SECTION_NONE,
"ROW SECURITY", SECTION_POST_DATA,
query->data, "", NULL,
NULL, 0,
NULL, NULL);
@ -2954,19 +2953,19 @@ dumpRowSecurity(Archive *fout, DumpOptions *dopt, RowSecurityInfo *rsinfo)
return;
}
if (!rsinfo->rseccmd)
if (!polinfo->polcmd)
cmd = "ALL";
else if (strcmp(rsinfo->rseccmd, "r") == 0)
else if (strcmp(polinfo->polcmd, "r") == 0)
cmd = "SELECT";
else if (strcmp(rsinfo->rseccmd, "a") == 0)
else if (strcmp(polinfo->polcmd, "a") == 0)
cmd = "INSERT";
else if (strcmp(rsinfo->rseccmd, "w") == 0)
else if (strcmp(polinfo->polcmd, "w") == 0)
cmd = "UPDATE";
else if (strcmp(rsinfo->rseccmd, "d") == 0)
else if (strcmp(polinfo->polcmd, "d") == 0)
cmd = "DELETE";
else
{
write_msg(NULL, "unexpected command type: '%s'\n", rsinfo->rseccmd);
write_msg(NULL, "unexpected command type: '%s'\n", polinfo->polcmd);
exit_nicely(1);
}
@ -2974,28 +2973,28 @@ dumpRowSecurity(Archive *fout, DumpOptions *dopt, RowSecurityInfo *rsinfo)
delqry = createPQExpBuffer();
appendPQExpBuffer(query, "CREATE POLICY %s ON %s FOR %s",
rsinfo->rsecpolname, fmtId(tbinfo->dobj.name), cmd);
polinfo->polname, fmtId(tbinfo->dobj.name), cmd);
if (rsinfo->rsecroles != NULL)
appendPQExpBuffer(query, " TO %s", rsinfo->rsecroles);
if (polinfo->polroles != NULL)
appendPQExpBuffer(query, " TO %s", polinfo->polroles);
if (rsinfo->rsecqual != NULL)
appendPQExpBuffer(query, " USING %s", rsinfo->rsecqual);
if (polinfo->polqual != NULL)
appendPQExpBuffer(query, " USING %s", polinfo->polqual);
if (rsinfo->rsecwithcheck != NULL)
appendPQExpBuffer(query, " WITH CHECK %s", rsinfo->rsecwithcheck);
if (polinfo->polwithcheck != NULL)
appendPQExpBuffer(query, " WITH CHECK %s", polinfo->polwithcheck);
appendPQExpBuffer(query, ";\n");
appendPQExpBuffer(delqry, "DROP POLICY %s ON %s;\n",
rsinfo->rsecpolname, fmtId(tbinfo->dobj.name));
polinfo->polname, fmtId(tbinfo->dobj.name));
ArchiveEntry(fout, rsinfo->dobj.catId, rsinfo->dobj.dumpId,
rsinfo->dobj.name,
rsinfo->dobj.namespace->dobj.name,
ArchiveEntry(fout, polinfo->dobj.catId, polinfo->dobj.dumpId,
polinfo->dobj.name,
polinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname, false,
"ROW SECURITY", SECTION_POST_DATA,
"POLICY", SECTION_POST_DATA,
query->data, delqry->data, NULL,
NULL, 0,
NULL, NULL);
@ -8232,8 +8231,8 @@ dumpDumpableObject(Archive *fout, DumpOptions *dopt, DumpableObject *dobj)
NULL, 0,
dumpBlobs, NULL);
break;
case DO_ROW_SECURITY:
dumpRowSecurity(fout, dopt, (RowSecurityInfo *) dobj);
case DO_POLICY:
dumpPolicy(fout, dopt, (PolicyInfo *) dobj);
break;
case DO_PRE_DATA_BOUNDARY:
case DO_POST_DATA_BOUNDARY:
@ -15631,7 +15630,7 @@ addBoundaryDependencies(DumpableObject **dobjs, int numObjs,
case DO_TRIGGER:
case DO_EVENT_TRIGGER:
case DO_DEFAULT_ACL:
case DO_ROW_SECURITY:
case DO_POLICY:
/* Post-data objects: must come after the post-data boundary */
addObjectDependency(dobj, postDataBound->dumpId);
break;

26
src/bin/pg_dump/pg_dump.h
View File

@ -76,7 +76,7 @@ typedef enum
DO_POST_DATA_BOUNDARY,
DO_EVENT_TRIGGER,
DO_REFRESH_MATVIEW,
DO_ROW_SECURITY
DO_POLICY
} DumpableObjectType;
typedef struct _dumpableObject
@ -210,7 +210,7 @@ typedef struct _tableInfo
bool hasindex; /* does it have any indexes? */
bool hasrules; /* does it have any rules? */
bool hastriggers; /* does it have any triggers? */
bool rowsec; /* is row-security enabled? */
bool rowsec; /* is row security enabled? */
bool hasoids; /* does it have OIDs? */
uint32 frozenxid; /* for restore frozen xid */
uint32 minmxid; /* for restore min multi xid */
@ -453,21 +453,21 @@ typedef struct _blobInfo
} BlobInfo;
/*
* The RowSecurityInfo struct is used to represent row policies on a table and
* The PolicyInfo struct is used to represent policies on a table and
* to indicate if a table has RLS enabled (ENABLE ROW SECURITY). If
* rsecpolname is NULL, then the record indicates ENABLE ROW SECURITY, while if
* polname is NULL, then the record indicates ENABLE ROW SECURITY, while if
* it's non-NULL then this is a regular policy definition.
*/
typedef struct _rowSecurityInfo
typedef struct _policyInfo
{
DumpableObject dobj;
TableInfo *rstable;
char *rsecpolname; /* null indicates RLS is enabled on rel */
char *rseccmd;
char *rsecroles;
char *rsecqual;
char *rsecwithcheck;
} RowSecurityInfo;
TableInfo *poltable;
char *polname; /* null indicates RLS is enabled on rel */
char *polcmd;
char *polroles;
char *polqual;
char *polwithcheck;
} PolicyInfo;
/* global decls */
extern bool force_quotes; /* double-quotes for identifiers flag */
@ -549,6 +549,6 @@ extern DefaultACLInfo *getDefaultACLs(Archive *fout, DumpOptions *dopt, int *num
extern void getExtensionMembership(Archive *fout, DumpOptions *dopt, ExtensionInfo extinfo[],
int numExtensions);
extern EventTriggerInfo *getEventTriggers(Archive *fout, int *numEventTriggers);
extern void getRowSecurity(Archive *fout, TableInfo tblinfo[], int numTables);
extern void getPolicies(Archive *fout, TableInfo tblinfo[], int numTables);
#endif /* PG_DUMP_H */

12
src/bin/pg_dump/pg_dump_sort.c
View File

@ -28,8 +28,8 @@ static const char *modulename = gettext_noop("sorter");
* by OID. (This is a relatively crude hack to provide semi-reasonable
* behavior for old databases without full dependency info.) Note: collations,
* extensions, text search, foreign-data, materialized view, event trigger,
* and default ACL objects can't really happen here, so the rather bogus
* priorities for them don't matter.
* policies, and default ACL objects can't really happen here, so the rather
* bogus priorities for them don't matter.
*
* NOTE: object-type priorities must match the section assignments made in
* pg_dump.c; that is, PRE_DATA objects must sort before DO_PRE_DATA_BOUNDARY,
@ -73,7 +73,7 @@ static const int oldObjectTypePriority[] =
13, /* DO_POST_DATA_BOUNDARY */
20, /* DO_EVENT_TRIGGER */
15, /* DO_REFRESH_MATVIEW */
21 /* DO_ROW_SECURITY */
21 /* DO_POLICY */
};
/*
@ -122,7 +122,7 @@ static const int newObjectTypePriority[] =
25, /* DO_POST_DATA_BOUNDARY */
32, /* DO_EVENT_TRIGGER */
33, /* DO_REFRESH_MATVIEW */
34 /* DO_ROW_SECURITY */
34 /* DO_POLICY */
};
static DumpId preDataBoundId;
@ -1438,9 +1438,9 @@ describeDumpableObject(DumpableObject *obj, char *buf, int bufsize)
"BLOB DATA (ID %d)",
obj->dumpId);
return;
case DO_ROW_SECURITY:
case DO_POLICY:
snprintf(buf, bufsize,
"ROW-SECURITY POLICY (ID %d OID %u)",
"POLICY (ID %d OID %u)",
obj->dumpId, obj->catId.oid);
return;
case DO_PRE_DATA_BOUNDARY:

44
src/bin/psql/describe.c
View File

@ -783,31 +783,31 @@ permissionsList(const char *pattern)
if (pset.sversion >= 90500)
appendPQExpBuffer(&buf,
",\n pg_catalog.array_to_string(ARRAY(\n"
" SELECT rsecpolname\n"
" || CASE WHEN rseccmd IS NOT NULL THEN\n"
" E' (' || rseccmd || E')'\n"
" SELECT polname\n"
" || CASE WHEN polcmd IS NOT NULL THEN\n"
" E' (' || polcmd || E')'\n"
" ELSE E':' \n"
" END\n"
" || CASE WHEN rs.rsecqual IS NOT NULL THEN\n"
" E'\\n (u): ' || pg_catalog.pg_get_expr(rsecqual, rsecrelid)\n"
" || CASE WHEN polqual IS NOT NULL THEN\n"
" E'\\n (u): ' || pg_catalog.pg_get_expr(polqual, polrelid)\n"
" ELSE E''\n"
" END\n"
" || CASE WHEN rsecwithcheck IS NOT NULL THEN\n"
" E'\\n (c): ' || pg_catalog.pg_get_expr(rsecwithcheck, rsecrelid)\n"
" || CASE WHEN polwithcheck IS NOT NULL THEN\n"
" E'\\n (c): ' || pg_catalog.pg_get_expr(polwithcheck, polrelid)\n"
" ELSE E''\n"
" END"
" || CASE WHEN rs.rsecroles <> '{0}' THEN\n"
" || CASE WHEN polroles <> '{0}' THEN\n"
" E'\\n to: ' || pg_catalog.array_to_string(\n"
" ARRAY(\n"
" SELECT rolname\n"
" FROM pg_catalog.pg_roles\n"
" WHERE oid = ANY (rs.rsecroles)\n"
" WHERE oid = ANY (polroles)\n"
" ORDER BY 1\n"
" ), E', ')\n"
" ELSE E''\n"
" END\n"
" FROM pg_catalog.pg_rowsecurity rs\n"
" WHERE rsecrelid = c.oid), E'\\n')\n"
" FROM pg_catalog.pg_policy pol\n"
" WHERE polrelid = c.oid), E'\\n')\n"
" AS \"%s\"",
gettext_noop("Policies"));
@ -2001,27 +2001,19 @@ describeOneTableDetails(const char *schemaname,
/* print any row-level policies */
if (pset.sversion >= 90500)
{
appendPQExpBuffer(&buf,
",\n pg_catalog.pg_get_expr(rs.rsecqual, c.oid) as \"%s\"",
gettext_noop("Row-security"));
if (verbose)
appendPQExpBuffer(&buf,
"\n LEFT JOIN pg_rowsecurity rs ON rs.rsecrelid = c.oid");
printfPQExpBuffer(&buf,
"SELECT rs.rsecpolname,\n"
"CASE WHEN rs.rsecroles = '{0}' THEN NULL ELSE array_to_string(array(select rolname from pg_roles where oid = any (rs.rsecroles) order by 1),',') END,\n"
"pg_catalog.pg_get_expr(rs.rsecqual, rs.rsecrelid),\n"
"pg_catalog.pg_get_expr(rs.rsecwithcheck, rs.rsecrelid),\n"
"CASE rs.rseccmd \n"
"SELECT pol.polname,\n"
"CASE WHEN pol.polroles = '{0}' THEN NULL ELSE array_to_string(array(select rolname from pg_roles where oid = any (pol.polroles) order by 1),',') END,\n"
"pg_catalog.pg_get_expr(pol.polqual, pol.polrelid),\n"
"pg_catalog.pg_get_expr(pol.polwithcheck, pol.polrelid),\n"
"CASE pol.polcmd \n"
"WHEN 'r' THEN 'SELECT'\n"
"WHEN 'u' THEN 'UPDATE'\n"
"WHEN 'a' THEN 'INSERT'\n"
"WHEN 'd' THEN 'DELETE'\n"
"END AS cmd\n"
"FROM pg_catalog.pg_rowsecurity rs\n"
"WHERE rs.rsecrelid = '%s' ORDER BY 1;",
"FROM pg_catalog.pg_policy pol\n"
"WHERE pol.polrelid = '%s' ORDER BY 1;",
oid);
result = PSQLexec(buf.data);

2
src/bin/psql/tab-complete.c
View File

@ -2069,7 +2069,7 @@ psql_completion(const char *text, int start, int end)
static const char *const list_COMMENT[] =
{"CAST", "COLLATION", "CONVERSION", "DATABASE", "EVENT TRIGGER", "EXTENSION",
"FOREIGN DATA WRAPPER", "FOREIGN TABLE",
"SERVER", "INDEX", "LANGUAGE", "RULE", "SCHEMA", "SEQUENCE",
"SERVER", "INDEX", "LANGUAGE", "POLICY", "RULE", "SCHEMA", "SEQUENCE",
"TABLE", "TYPE", "VIEW", "MATERIALIZED VIEW", "COLUMN", "AGGREGATE", "FUNCTION",
"OPERATOR", "TRIGGER", "CONSTRAINT", "DOMAIN", "LARGE OBJECT",
"TABLESPACE", "TEXT SEARCH", "ROLE", NULL};

2
src/include/catalog/catversion.h
View File

@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201411251
#define CATALOG_VERSION_NO 201411271
#endif

2
src/include/catalog/dependency.h
View File

@ -147,7 +147,7 @@ typedef enum ObjectClass
OCLASS_DEFACL, /* pg_default_acl */
OCLASS_EXTENSION, /* pg_extension */
OCLASS_EVENT_TRIGGER, /* pg_event_trigger */
OCLASS_ROWSECURITY, /* pg_rowsecurity */
OCLASS_POLICY, /* pg_policy */
MAX_OCLASS /* MUST BE LAST */
} ObjectClass;

8
src/include/catalog/indexing.h
View File

@ -299,11 +299,11 @@ DECLARE_UNIQUE_INDEX(pg_extension_name_index, 3081, on pg_extension using btree(
DECLARE_UNIQUE_INDEX(pg_range_rngtypid_index, 3542, on pg_range using btree(rngtypid oid_ops));
#define RangeTypidIndexId 3542
DECLARE_UNIQUE_INDEX(pg_rowsecurity_oid_index, 3257, on pg_rowsecurity using btree(oid oid_ops));
#define RowSecurityOidIndexId 3257
DECLARE_UNIQUE_INDEX(pg_policy_oid_index, 3257, on pg_policy using btree(oid oid_ops));
#define PolicyOidIndexId 3257
DECLARE_UNIQUE_INDEX(pg_rowsecurity_polname_relid_index, 3258, on pg_rowsecurity using btree(rsecrelid oid_ops, rsecpolname name_ops));
#define RowSecurityRelidPolnameIndexId 3258
DECLARE_UNIQUE_INDEX(pg_policy_polrelid_polname_index, 3258, on pg_policy using btree(polrelid oid_ops, polname name_ops));
#define PolicyPolrelidPolnameIndexId 3258
/* last step of initialization script: build the indexes declared above */
BUILD_INDICES

2
src/include/catalog/pg_class.h
View File

@ -65,7 +65,7 @@ CATALOG(pg_class,1259) BKI_BOOTSTRAP BKI_ROWTYPE_OID(83) BKI_SCHEMA_MACRO
bool relhasrules; /* has (or has had) any rules */
bool relhastriggers; /* has (or has had) any TRIGGERs */
bool relhassubclass; /* has (or has had) derived classes */
bool relrowsecurity; /* row-security is enabled or not */
bool relrowsecurity; /* row security is enabled or not */
bool relispopulated; /* matview currently holds query results */
char relreplident; /* see REPLICA_IDENTITY_xxx constants */
TransactionId relfrozenxid; /* all Xids < this are frozen in this rel */

53
src/include/catalog/pg_policy.h Normal file
View File

@ -0,0 +1,53 @@
/*
* pg_policy.h
* definition of the system "policy" relation (pg_policy)
*
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*/
#ifndef PG_POLICY_H
#define PG_POLICY_H
#include "catalog/genbki.h"
/* ----------------
* pg_policy definition. cpp turns this into
* typedef struct FormData_pg_policy
* ----------------
*/
#define PolicyRelationId 3256
CATALOG(pg_policy,3256)
{
NameData polname; /* Policy name. */
Oid polrelid; /* Oid of the relation with policy. */
char polcmd; /* One of ACL_*_CHR, or \0 for all */
#ifdef CATALOG_VARLEN
Oid polroles[1] /* Roles associated with policy, not-NULL */
pg_node_tree polqual; /* Policy quals. */
pg_node_tree polwithcheck; /* WITH CHECK quals. */
#endif
} FormData_pg_policy;
/* ----------------
* Form_pg_policy corresponds to a pointer to a row with
* the format of pg_policy relation.
* ----------------
*/
typedef FormData_pg_policy *Form_pg_policy;
/* ----------------
* compiler constants for pg_policy
* ----------------
*/
#define Natts_pg_policy 6
#define Anum_pg_policy_polname 1
#define Anum_pg_policy_polrelid 2
#define Anum_pg_policy_polcmd 3
#define Anum_pg_policy_polroles 4
#define Anum_pg_policy_polqual 5
#define Anum_pg_policy_polwithcheck 6
#endif /* PG_POLICY_H */

53
src/include/catalog/pg_rowsecurity.h
View File

@ -1,53 +0,0 @@
/*
* pg_rowsecurity.h
* definition of the system catalog for row-security policy (pg_rowsecurity)
*
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*/
#ifndef PG_ROWSECURITY_H
#define PG_ROWSECURITY_H
#include "catalog/genbki.h"
/* ----------------
* pg_rowsecurity definition. cpp turns this into
* typedef struct FormData_pg_rowsecurity
* ----------------
*/
#define RowSecurityRelationId 3256
CATALOG(pg_rowsecurity,3256)
{
NameData rsecpolname; /* Policy name. */
Oid rsecrelid; /* Oid of the relation with policy. */
char rseccmd; /* One of ACL_*_CHR, or \0 for all */
#ifdef CATALOG_VARLEN
Oid rsecroles[1] /* Roles associated with policy, not-NULL */
pg_node_tree rsecqual; /* Policy quals. */
pg_node_tree rsecwithcheck; /* WITH CHECK quals. */
#endif
} FormData_pg_rowsecurity;
/* ----------------
* Form_pg_rowsecurity corresponds to a pointer to a row with
* the format of pg_rowsecurity relation.
* ----------------
*/
typedef FormData_pg_rowsecurity *Form_pg_rowsecurity;
/* ----------------
* compiler constants for pg_rowsecurity
* ----------------
*/
#define Natts_pg_rowsecurity 6
#define Anum_pg_rowsecurity_rsecpolname 1
#define Anum_pg_rowsecurity_rsecrelid 2
#define Anum_pg_rowsecurity_rseccmd 3
#define Anum_pg_rowsecurity_rsecroles 4
#define Anum_pg_rowsecurity_rsecqual 5
#define Anum_pg_rowsecurity_rsecwithcheck 6
#endif /* PG_ROWSECURITY_H */

2
src/include/nodes/parsenodes.h
View File

@ -121,7 +121,7 @@ typedef struct Query
bool hasRecursive; /* WITH RECURSIVE was specified */
bool hasModifyingCTE; /* has INSERT/UPDATE/DELETE in WITH */
bool hasForUpdate; /* FOR [KEY] UPDATE/SHARE was specified */
bool hasRowSecurity; /* Row-security policy is applied */
bool hasRowSecurity; /* row security applied? */
List *cteList; /* WITH list (of CommonTableExpr's) */

2
src/include/nodes/plannodes.h
View File

@ -70,7 +70,7 @@ typedef struct PlannedStmt
int nParamExec; /* number of PARAM_EXEC Params used */
bool has_rls; /* row-security applied? */
bool hasRowSecurity; /* row security applied? */
} PlannedStmt;

2
src/include/nodes/relation.h
View File

@ -101,7 +101,7 @@ typedef struct PlannerGlobal
bool transientPlan; /* redo plan when TransactionXmin changes? */
bool has_rls; /* row-security is applied? */
bool hasRowSecurity; /* row security applied? */
} PlannerGlobal;

6
src/include/rewrite/rowsecurity.h
View File

@ -19,7 +19,7 @@
typedef struct RowSecurityPolicy
{
Oid rsecid; /* OID of the policy */
Oid policy_id; /* OID of the policy */
char *policy_name; /* Name of the policy */
char cmd; /* Type of command policy is for */
ArrayType *roles; /* Array of roles policy is for */
@ -30,8 +30,8 @@ typedef struct RowSecurityPolicy
typedef struct RowSecurityDesc
{
MemoryContext rscxt; /* row-security memory context */
List *policies; /* list of row-security policies */
MemoryContext rscxt; /* row security memory context */
List *policies; /* list of row security policies */
} RowSecurityDesc;
/* GUC variable */

4
src/include/utils/plancache.h
View File

@ -109,9 +109,9 @@ typedef struct CachedPlanSource
double generic_cost; /* cost of generic plan, or -1 if not known */
double total_custom_cost; /* total cost of custom plans so far */
int num_custom_plans; /* number of plans included in total */
bool has_rls; /* planned with row-security? */
bool hasRowSecurity; /* planned with row security? */
int row_security_env; /* row security setting when planned */
bool rowSecurityDisabled; /* is row-security disabled? */
bool rowSecurityDisabled; /* is row security disabled? */
} CachedPlanSource;
/*

2
src/include/utils/rel.h
View File

@ -106,7 +106,7 @@ typedef struct RelationData
MemoryContext rd_rulescxt; /* private memory cxt for rd_rules, if any */
TriggerDesc *trigdesc; /* Trigger info, or NULL if rel has none */
/* use "struct" here to avoid needing to include rowsecurity.h: */
struct RowSecurityDesc *rd_rsdesc; /* Row-security policies, or NULL */
struct RowSecurityDesc *rd_rsdesc; /* row security policies, or NULL */
/* data managed by RelationGetIndexList: */
List *rd_indexlist; /* list of OIDs of indexes on relation */

54
src/test/regress/expected/rowsecurity.out
View File

@ -173,7 +173,7 @@ EXPLAIN (COSTS OFF) SELECT * FROM document NATURAL JOIN category WHERE f_leak(dt
Index Cond: (pguser = "current_user"())
(11 rows)
-- only owner can change row-level security
-- only owner can change policies
ALTER POLICY p1 ON document USING (true); --fail
ERROR: must be owner of relation document
DROP POLICY p1 ON document; --fail
@ -724,7 +724,7 @@ CREATE TABLE dependent (x integer, y integer);
CREATE POLICY d1 ON dependent FOR ALL
TO PUBLIC
USING (x = (SELECT d.x FROM dependee d WHERE d.y = y));
DROP TABLE dependee; -- Should fail without CASCADE due to dependency on row-security qual?
DROP TABLE dependee; -- Should fail without CASCADE due to dependency on row security qual?
ERROR: cannot drop table dependee because other objects depend on it
DETAIL: policy d1 on table dependent depends on table dependee
HINT: Use DROP ... CASCADE to drop the dependent objects too.
@ -746,7 +746,7 @@ CREATE POLICY r1 ON rec1 USING (x = (SELECT r.x FROM rec1 r WHERE y = r.y));
ALTER TABLE rec1 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION rls_regress_user1;
SELECT * FROM rec1; -- fail, direct recursion
ERROR: infinite recursion detected in row-security policy for relation "rec1"
ERROR: infinite recursion detected in policy for relation "rec1"
--
-- Mutual recursion
--
@ -757,7 +757,7 @@ CREATE POLICY r2 ON rec2 USING (a = (SELECT x FROM rec1 WHERE y = b));
ALTER TABLE rec2 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION rls_regress_user1;
SELECT * FROM rec1; -- fail, mutual recursion
ERROR: infinite recursion detected in row-security policy for relation "rec1"
ERROR: infinite recursion detected in policy for relation "rec1"
--
-- Mutual recursion via views
--
@ -769,7 +769,7 @@ ALTER POLICY r1 ON rec1 USING (x = (SELECT a FROM rec2v WHERE b = y));
ALTER POLICY r2 ON rec2 USING (a = (SELECT x FROM rec1v WHERE y = b));
SET SESSION AUTHORIZATION rls_regress_user1;
SELECT * FROM rec1; -- fail, mutual recursion via views
ERROR: infinite recursion detected in row-security policy for relation "rec1"
ERROR: infinite recursion detected in policy for relation "rec1"
--
-- Mutual recursion via .s.b views
--
@ -785,7 +785,7 @@ CREATE POLICY r1 ON rec1 USING (x = (SELECT a FROM rec2v WHERE b = y));
CREATE POLICY r2 ON rec2 USING (a = (SELECT x FROM rec1v WHERE y = b));
SET SESSION AUTHORIZATION rls_regress_user1;
SELECT * FROM rec1; -- fail, mutual recursion via s.b. views
ERROR: infinite recursion detected in row-security policy for relation "rec1"
ERROR: infinite recursion detected in policy for relation "rec1"
--
-- recursive RLS and VIEWs in policy
--
@ -803,9 +803,9 @@ ALTER TABLE s2 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION rls_regress_user1;
CREATE VIEW v2 AS SELECT * FROM s2 WHERE y like '%af%';
SELECT * FROM s1 WHERE f_leak(b); -- fail (infinite recursion)
ERROR: infinite recursion detected in row-security policy for relation "s1"
ERROR: infinite recursion detected in policy for relation "s1"
INSERT INTO s1 VALUES (1, 'foo'); -- fail (infinite recursion)
ERROR: infinite recursion detected in row-security policy for relation "s1"
ERROR: infinite recursion detected in policy for relation "s1"
SET SESSION AUTHORIZATION rls_regress_user0;
DROP POLICY p3 on s1;
ALTER POLICY p2 ON s2 USING (x % 2 = 0);
@ -897,7 +897,7 @@ SET SESSION AUTHORIZATION rls_regress_user0;
ALTER POLICY p2 ON s2 USING (x in (select a from s1 where b like '%d2%'));
SET SESSION AUTHORIZATION rls_regress_user1;
SELECT * FROM s1 WHERE f_leak(b); -- fail (infinite recursion via view)
ERROR: infinite recursion detected in row-security policy for relation "s1"
ERROR: infinite recursion detected in policy for relation "s1"
-- prepared statement with rls_regress_user0 privilege
PREPARE p1(int) AS SELECT * FROM t1 WHERE a <= $1;
EXECUTE p1(2);
@ -1714,24 +1714,24 @@ WITH cte1 AS (INSERT INTO t1 VALUES (20, 'Success') RETURNING *) SELECT * FROM c
--
RESET SESSION AUTHORIZATION;
ALTER POLICY p1 ON t1 RENAME TO p1; --fail
ERROR: row-policy "p1" for table "t1" already exists
SELECT rsecpolname, relname
FROM pg_rowsecurity rs
JOIN pg_class pc ON (pc.oid = rs.rsecrelid)
ERROR: policy "p1" for table "t1" already exists
SELECT polname, relname
FROM pg_policy pol
JOIN pg_class pc ON (pc.oid = pol.polrelid)
WHERE relname = 't1';
rsecpolname | relname
-------------+---------
p1 | t1
polname | relname
---------+---------
p1 | t1
(1 row)
ALTER POLICY p1 ON t1 RENAME TO p2; --ok
SELECT rsecpolname, relname
FROM pg_rowsecurity rs
JOIN pg_class pc ON (pc.oid = rs.rsecrelid)
SELECT polname, relname
FROM pg_policy pol
JOIN pg_class pc ON (pc.oid = pol.polrelid)
WHERE relname = 't1';
rsecpolname | relname
-------------+---------
p2 | t1
polname | relname
---------+---------
p2 | t1
(1 row)
--
@ -2161,7 +2161,7 @@ SET row_security TO ON;
COPY copy_t FROM STDIN; --ok
SET row_security TO FORCE;
COPY copy_t FROM STDIN; --fail - COPY FROM not supported by RLS.
ERROR: COPY FROM not supported with row security.
ERROR: COPY FROM not supported with row level security.
HINT: Use direct INSERT statements instead.
-- Check COPY FROM as user with permissions.
SET SESSION AUTHORIZATION rls_regress_user1;
@ -2170,11 +2170,11 @@ COPY copy_t FROM STDIN; --fail - insufficient privilege to bypass rls.
ERROR: insufficient privilege to bypass row security.
SET row_security TO ON;
COPY copy_t FROM STDIN; --fail - COPY FROM not supported by RLS.
ERROR: COPY FROM not supported with row security.
ERROR: COPY FROM not supported with row level security.
HINT: Use direct INSERT statements instead.
SET row_security TO FORCE;
COPY copy_t FROM STDIN; --fail - COPY FROM not supported by RLS.
ERROR: COPY FROM not supported with row security.
ERROR: COPY FROM not supported with row level security.
HINT: Use direct INSERT statements instead.
-- Check COPY TO as user with permissions and BYPASSRLS
SET SESSION AUTHORIZATION rls_regress_exempt_user;
@ -2182,11 +2182,11 @@ SET row_security TO OFF;
COPY copy_t FROM STDIN; --ok
SET row_security TO ON;
COPY copy_t FROM STDIN; --fail - COPY FROM not supported by RLS.
ERROR: COPY FROM not supported with row security.
ERROR: COPY FROM not supported with row level security.
HINT: Use direct INSERT statements instead.
SET row_security TO FORCE;
COPY copy_t FROM STDIN; --fail - COPY FROM not supported by RLS.
ERROR: COPY FROM not supported with row security.
ERROR: COPY FROM not supported with row level security.
HINT: Use direct INSERT statements instead.
-- Check COPY FROM as user without permissions.
SET SESSION AUTHORIZATION rls_regress_user2;

18
src/test/regress/expected/rules.out
View File

@ -1355,18 +1355,18 @@ pg_matviews| SELECT n.nspname AS schemaname,
WHERE (c.relkind = 'm'::"char");
pg_policies| SELECT n.nspname AS schemaname,
c.relname AS tablename,
rs.rsecpolname AS policyname,
pol.polname AS policyname,
CASE
WHEN (rs.rsecroles = '{0}'::oid[]) THEN (string_to_array('public'::text, ''::text))::name[]
WHEN (pol.polroles = '{0}'::oid[]) THEN (string_to_array('public'::text, ''::text))::name[]
ELSE ARRAY( SELECT pg_authid.rolname
FROM pg_authid
WHERE (pg_authid.oid = ANY (rs.rsecroles))
WHERE (pg_authid.oid = ANY (pol.polroles))
ORDER BY pg_authid.rolname)
END AS roles,
CASE
WHEN (rs.rseccmd IS NULL) THEN 'ALL'::text
WHEN (pol.polcmd IS NULL) THEN 'ALL'::text
ELSE
CASE rs.rseccmd
CASE pol.polcmd
WHEN 'r'::"char" THEN 'SELECT'::text
WHEN 'a'::"char" THEN 'INSERT'::text
WHEN 'u'::"char" THEN 'UPDATE'::text
@ -1374,10 +1374,10 @@ pg_policies| SELECT n.nspname AS schemaname,
ELSE NULL::text
END
END AS cmd,
pg_get_expr(rs.rsecqual, rs.rsecrelid) AS qual,
pg_get_expr(rs.rsecwithcheck, rs.rsecrelid) AS with_check
FROM ((pg_rowsecurity rs
JOIN pg_class c ON ((c.oid = rs.rsecrelid)))
pg_get_expr(pol.polqual, pol.polrelid) AS qual,
pg_get_expr(pol.polwithcheck, pol.polrelid) AS with_check
FROM ((pg_policy pol
JOIN pg_class c ON ((c.oid = pol.polrelid)))
LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace)));
pg_prepared_statements| SELECT p.name,
p.statement,

2
src/test/regress/expected/sanity_check.out
View File

@ -118,10 +118,10 @@ pg_opclass|t
pg_operator|t
pg_opfamily|t
pg_pltemplate|t
pg_policy|t
pg_proc|t
pg_range|t
pg_rewrite|t
pg_rowsecurity|t
pg_seclabel|t
pg_shdepend|t
pg_shdescription|t

16
src/test/regress/sql/rowsecurity.sql
View File

@ -102,7 +102,7 @@ SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle) ORDER BY did;
EXPLAIN (COSTS OFF) SELECT * FROM document WHERE f_leak(dtitle);
EXPLAIN (COSTS OFF) SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle);
-- only owner can change row-level security
-- only owner can change policies
ALTER POLICY p1 ON document USING (true); --fail
DROP POLICY p1 ON document; --fail
@ -274,7 +274,7 @@ CREATE POLICY d1 ON dependent FOR ALL
TO PUBLIC
USING (x = (SELECT d.x FROM dependee d WHERE d.y = y));
DROP TABLE dependee; -- Should fail without CASCADE due to dependency on row-security qual?
DROP TABLE dependee; -- Should fail without CASCADE due to dependency on row security qual?
DROP TABLE dependee CASCADE;
@ -659,16 +659,16 @@ WITH cte1 AS (INSERT INTO t1 VALUES (20, 'Success') RETURNING *) SELECT * FROM c
RESET SESSION AUTHORIZATION;
ALTER POLICY p1 ON t1 RENAME TO p1; --fail
SELECT rsecpolname, relname
FROM pg_rowsecurity rs
JOIN pg_class pc ON (pc.oid = rs.rsecrelid)
SELECT polname, relname
FROM pg_policy pol
JOIN pg_class pc ON (pc.oid = pol.polrelid)
WHERE relname = 't1';
ALTER POLICY p1 ON t1 RENAME TO p2; --ok
SELECT rsecpolname, relname
FROM pg_rowsecurity rs
JOIN pg_class pc ON (pc.oid = rs.rsecrelid)
SELECT polname, relname
FROM pg_policy pol
JOIN pg_class pc ON (pc.oid = pol.polrelid)
WHERE relname = 't1';
--