mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-21 21:13:23 +02:00
Move the system catalog index declarations from catalog/indexing.h to the respective parent tables' catalog/pg_*.h files. The original reason for having it split was that the old genbki system produced the output in the order of the catalog files it read, so all the indexing stuff needed to come separately. But this is no longer the case, and keeping it together makes more sense. Reviewed-by: John Naylor <john.naylor@enterprisedb.com> Discussion: https://www.postgresql.org/message-id/flat/c7cc82d6-f976-75d6-2e3e-b03d2cab26bb@2ndquadrant.com
236 lines
5.5 KiB
C
236 lines
5.5 KiB
C
/* -------------------------------------------------------------------------
|
|
*
|
|
* contrib/sepgsql/schema.c
|
|
*
|
|
* Routines corresponding to schema objects
|
|
*
|
|
* Copyright (c) 2010-2020, PostgreSQL Global Development Group
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
#include "postgres.h"
|
|
|
|
#include "access/genam.h"
|
|
#include "access/htup_details.h"
|
|
#include "access/sysattr.h"
|
|
#include "access/table.h"
|
|
#include "catalog/dependency.h"
|
|
#include "catalog/pg_database.h"
|
|
#include "catalog/pg_namespace.h"
|
|
#include "commands/seclabel.h"
|
|
#include "lib/stringinfo.h"
|
|
#include "miscadmin.h"
|
|
#include "sepgsql.h"
|
|
#include "utils/builtins.h"
|
|
#include "utils/fmgroids.h"
|
|
#include "utils/lsyscache.h"
|
|
#include "utils/snapmgr.h"
|
|
|
|
/*
|
|
* sepgsql_schema_post_create
|
|
*
|
|
* This routine assigns a default security label on a newly defined
|
|
* schema.
|
|
*/
|
|
void
|
|
sepgsql_schema_post_create(Oid namespaceId)
|
|
{
|
|
Relation rel;
|
|
ScanKeyData skey;
|
|
SysScanDesc sscan;
|
|
HeapTuple tuple;
|
|
char *tcontext;
|
|
char *ncontext;
|
|
const char *nsp_name;
|
|
ObjectAddress object;
|
|
Form_pg_namespace nspForm;
|
|
StringInfoData audit_name;
|
|
|
|
/*
|
|
* Compute a default security label when we create a new schema object
|
|
* under the working database.
|
|
*
|
|
* XXX - upcoming version of libselinux supports to take object name to
|
|
* handle special treatment on default security label; such as special
|
|
* label on "pg_temp" schema.
|
|
*/
|
|
rel = table_open(NamespaceRelationId, AccessShareLock);
|
|
|
|
ScanKeyInit(&skey,
|
|
Anum_pg_namespace_oid,
|
|
BTEqualStrategyNumber, F_OIDEQ,
|
|
ObjectIdGetDatum(namespaceId));
|
|
|
|
sscan = systable_beginscan(rel, NamespaceOidIndexId, true,
|
|
SnapshotSelf, 1, &skey);
|
|
tuple = systable_getnext(sscan);
|
|
if (!HeapTupleIsValid(tuple))
|
|
elog(ERROR, "could not find tuple for namespace %u", namespaceId);
|
|
|
|
nspForm = (Form_pg_namespace) GETSTRUCT(tuple);
|
|
nsp_name = NameStr(nspForm->nspname);
|
|
if (strncmp(nsp_name, "pg_temp_", 8) == 0)
|
|
nsp_name = "pg_temp";
|
|
else if (strncmp(nsp_name, "pg_toast_temp_", 14) == 0)
|
|
nsp_name = "pg_toast_temp";
|
|
|
|
tcontext = sepgsql_get_label(DatabaseRelationId, MyDatabaseId, 0);
|
|
ncontext = sepgsql_compute_create(sepgsql_get_client_label(),
|
|
tcontext,
|
|
SEPG_CLASS_DB_SCHEMA,
|
|
nsp_name);
|
|
|
|
/*
|
|
* check db_schema:{create}
|
|
*/
|
|
initStringInfo(&audit_name);
|
|
appendStringInfo(&audit_name, "%s", quote_identifier(nsp_name));
|
|
sepgsql_avc_check_perms_label(ncontext,
|
|
SEPG_CLASS_DB_SCHEMA,
|
|
SEPG_DB_SCHEMA__CREATE,
|
|
audit_name.data,
|
|
true);
|
|
systable_endscan(sscan);
|
|
table_close(rel, AccessShareLock);
|
|
|
|
/*
|
|
* Assign the default security label on a new procedure
|
|
*/
|
|
object.classId = NamespaceRelationId;
|
|
object.objectId = namespaceId;
|
|
object.objectSubId = 0;
|
|
SetSecurityLabel(&object, SEPGSQL_LABEL_TAG, ncontext);
|
|
|
|
pfree(ncontext);
|
|
pfree(tcontext);
|
|
}
|
|
|
|
/*
|
|
* sepgsql_schema_drop
|
|
*
|
|
* It checks privileges to drop the supplied schema object.
|
|
*/
|
|
void
|
|
sepgsql_schema_drop(Oid namespaceId)
|
|
{
|
|
ObjectAddress object;
|
|
char *audit_name;
|
|
|
|
/*
|
|
* check db_schema:{drop} permission
|
|
*/
|
|
object.classId = NamespaceRelationId;
|
|
object.objectId = namespaceId;
|
|
object.objectSubId = 0;
|
|
audit_name = getObjectIdentity(&object, false);
|
|
|
|
sepgsql_avc_check_perms(&object,
|
|
SEPG_CLASS_DB_SCHEMA,
|
|
SEPG_DB_SCHEMA__DROP,
|
|
audit_name,
|
|
true);
|
|
pfree(audit_name);
|
|
}
|
|
|
|
/*
|
|
* sepgsql_schema_relabel
|
|
*
|
|
* It checks privileges to relabel the supplied schema
|
|
* by the `seclabel'.
|
|
*/
|
|
void
|
|
sepgsql_schema_relabel(Oid namespaceId, const char *seclabel)
|
|
{
|
|
ObjectAddress object;
|
|
char *audit_name;
|
|
|
|
object.classId = NamespaceRelationId;
|
|
object.objectId = namespaceId;
|
|
object.objectSubId = 0;
|
|
audit_name = getObjectIdentity(&object, false);
|
|
|
|
/*
|
|
* check db_schema:{setattr relabelfrom} permission
|
|
*/
|
|
sepgsql_avc_check_perms(&object,
|
|
SEPG_CLASS_DB_SCHEMA,
|
|
SEPG_DB_SCHEMA__SETATTR |
|
|
SEPG_DB_SCHEMA__RELABELFROM,
|
|
audit_name,
|
|
true);
|
|
|
|
/*
|
|
* check db_schema:{relabelto} permission
|
|
*/
|
|
sepgsql_avc_check_perms_label(seclabel,
|
|
SEPG_CLASS_DB_SCHEMA,
|
|
SEPG_DB_SCHEMA__RELABELTO,
|
|
audit_name,
|
|
true);
|
|
pfree(audit_name);
|
|
}
|
|
|
|
/*
|
|
* sepgsql_schema_check_perms
|
|
*
|
|
* utility routine to check db_schema:{xxx} permissions
|
|
*/
|
|
static bool
|
|
check_schema_perms(Oid namespaceId, uint32 required, bool abort_on_violation)
|
|
{
|
|
ObjectAddress object;
|
|
char *audit_name;
|
|
bool result;
|
|
|
|
object.classId = NamespaceRelationId;
|
|
object.objectId = namespaceId;
|
|
object.objectSubId = 0;
|
|
audit_name = getObjectIdentity(&object, false);
|
|
|
|
result = sepgsql_avc_check_perms(&object,
|
|
SEPG_CLASS_DB_SCHEMA,
|
|
required,
|
|
audit_name,
|
|
abort_on_violation);
|
|
pfree(audit_name);
|
|
|
|
return result;
|
|
}
|
|
|
|
/* db_schema:{setattr} permission */
|
|
void
|
|
sepgsql_schema_setattr(Oid namespaceId)
|
|
{
|
|
check_schema_perms(namespaceId, SEPG_DB_SCHEMA__SETATTR, true);
|
|
}
|
|
|
|
/* db_schema:{search} permission */
|
|
bool
|
|
sepgsql_schema_search(Oid namespaceId, bool abort_on_violation)
|
|
{
|
|
return check_schema_perms(namespaceId,
|
|
SEPG_DB_SCHEMA__SEARCH,
|
|
abort_on_violation);
|
|
}
|
|
|
|
void
|
|
sepgsql_schema_add_name(Oid namespaceId)
|
|
{
|
|
check_schema_perms(namespaceId, SEPG_DB_SCHEMA__ADD_NAME, true);
|
|
}
|
|
|
|
void
|
|
sepgsql_schema_remove_name(Oid namespaceId)
|
|
{
|
|
check_schema_perms(namespaceId, SEPG_DB_SCHEMA__REMOVE_NAME, true);
|
|
}
|
|
|
|
void
|
|
sepgsql_schema_rename(Oid namespaceId)
|
|
{
|
|
check_schema_perms(namespaceId,
|
|
SEPG_DB_SCHEMA__ADD_NAME |
|
|
SEPG_DB_SCHEMA__REMOVE_NAME,
|
|
true);
|
|
}
|