Header And Logo
|
#include "postgres.h"#include "access/genam.h"#include "access/heapam.h"#include "access/htup_details.h"#include "access/sysattr.h"#include "catalog/dependency.h"#include "catalog/indexing.h"#include "catalog/pg_database.h"#include "catalog/pg_namespace.h"#include "commands/seclabel.h"#include "lib/stringinfo.h"#include "miscadmin.h"#include "utils/builtins.h"#include "utils/fmgroids.h"#include "utils/lsyscache.h"#include "utils/tqual.h"#include "sepgsql.h"
Go to the source code of this file.
Functions | |
| void | sepgsql_schema_post_create (Oid namespaceId) |
| void | sepgsql_schema_drop (Oid namespaceId) |
| void | sepgsql_schema_relabel (Oid namespaceId, const char *seclabel) |
| static bool | check_schema_perms (Oid namespaceId, uint32 required, bool abort_on_violation) |
| void | sepgsql_schema_setattr (Oid namespaceId) |
| bool | sepgsql_schema_search (Oid namespaceId, bool abort_on_violation) |
| void | sepgsql_schema_add_name (Oid namespaceId) |
| void | sepgsql_schema_remove_name (Oid namespaceId) |
| void | sepgsql_schema_rename (Oid namespaceId) |
| static bool check_schema_perms | ( | Oid | namespaceId, | |
| uint32 | required, | |||
| bool | abort_on_violation | |||
| ) | [static] |
Definition at line 180 of file schema.c.
References getObjectIdentity(), pfree(), SEPG_CLASS_DB_SCHEMA, and sepgsql_avc_check_perms().
Referenced by sepgsql_schema_add_name(), sepgsql_schema_remove_name(), sepgsql_schema_rename(), sepgsql_schema_search(), and sepgsql_schema_setattr().
{
ObjectAddress object;
char *audit_name;
bool result;
object.classId = NamespaceRelationId;
object.objectId = namespaceId;
object.objectSubId = 0;
audit_name = getObjectIdentity(&object);
result = sepgsql_avc_check_perms(&object,
SEPG_CLASS_DB_SCHEMA,
required,
audit_name,
abort_on_violation);
pfree(audit_name);
return result;
}
| void sepgsql_schema_add_name | ( | Oid | namespaceId | ) |
Definition at line 218 of file schema.c.
References check_schema_perms(), and SEPG_DB_SCHEMA__ADD_NAME.
Referenced by sepgsql_proc_setattr(), and sepgsql_relation_setattr().
{
check_schema_perms(namespaceId, SEPG_DB_SCHEMA__ADD_NAME, true);
}
| void sepgsql_schema_drop | ( | Oid | namespaceId | ) |
Definition at line 115 of file schema.c.
References getObjectIdentity(), pfree(), SEPG_CLASS_DB_SCHEMA, SEPG_DB_SCHEMA__DROP, and sepgsql_avc_check_perms().
Referenced by sepgsql_object_access().
{
ObjectAddress object;
char *audit_name;
/*
* check db_schema:{drop} permission
*/
object.classId = NamespaceRelationId;
object.objectId = namespaceId;
object.objectSubId = 0;
audit_name = getObjectIdentity(&object);
sepgsql_avc_check_perms(&object,
SEPG_CLASS_DB_SCHEMA,
SEPG_DB_SCHEMA__DROP,
audit_name,
true);
pfree(audit_name);
}
| void sepgsql_schema_post_create | ( | Oid | namespaceId | ) |
Definition at line 38 of file schema.c.
References AccessShareLock, appendStringInfo(), BTEqualStrategyNumber, StringInfoData::data, DatabaseRelationId, elog, ERROR, GETSTRUCT, heap_close, heap_open(), HeapTupleIsValid, initStringInfo(), MyDatabaseId, NamespaceOidIndexId, NamespaceRelationId, NameStr, ObjectIdAttributeNumber, ObjectIdGetDatum, pfree(), quote_identifier(), ScanKeyInit(), SEPG_CLASS_DB_SCHEMA, SEPG_DB_SCHEMA__CREATE, sepgsql_avc_check_perms_label(), sepgsql_compute_create(), sepgsql_get_client_label(), sepgsql_get_label(), SEPGSQL_LABEL_TAG, SetSecurityLabel(), SnapshotSelf, systable_beginscan(), systable_endscan(), and systable_getnext().
Referenced by sepgsql_object_access().
{
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 - uncoming 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 = heap_open(NamespaceRelationId, AccessShareLock);
ScanKeyInit(&skey,
ObjectIdAttributeNumber,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(namespaceId));
sscan = systable_beginscan(rel, NamespaceOidIndexId, true,
SnapshotSelf, 1, &skey);
tuple = systable_getnext(sscan);
if (!HeapTupleIsValid(tuple))
elog(ERROR, "catalog lookup failed 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);
heap_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);
}
| void sepgsql_schema_relabel | ( | Oid | namespaceId, | |
| const char * | seclabel | |||
| ) |
Definition at line 143 of file schema.c.
References getObjectIdentity(), pfree(), SEPG_CLASS_DB_SCHEMA, SEPG_DB_SCHEMA__RELABELFROM, SEPG_DB_SCHEMA__RELABELTO, SEPG_DB_SCHEMA__SETATTR, sepgsql_avc_check_perms(), and sepgsql_avc_check_perms_label().
Referenced by sepgsql_object_relabel().
{
ObjectAddress object;
char *audit_name;
object.classId = NamespaceRelationId;
object.objectId = namespaceId;
object.objectSubId = 0;
audit_name = getObjectIdentity(&object);
/*
* 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);
}
| void sepgsql_schema_remove_name | ( | Oid | namespaceId | ) |
Definition at line 224 of file schema.c.
References check_schema_perms(), and SEPG_DB_SCHEMA__REMOVE_NAME.
Referenced by sepgsql_proc_setattr(), and sepgsql_relation_setattr().
{
check_schema_perms(namespaceId, SEPG_DB_SCHEMA__REMOVE_NAME, true);
}
| void sepgsql_schema_rename | ( | Oid | namespaceId | ) |
Definition at line 230 of file schema.c.
References check_schema_perms(), SEPG_DB_SCHEMA__ADD_NAME, and SEPG_DB_SCHEMA__REMOVE_NAME.
Referenced by sepgsql_proc_setattr(), and sepgsql_relation_setattr().
{
check_schema_perms(namespaceId,
SEPG_DB_SCHEMA__ADD_NAME |
SEPG_DB_SCHEMA__REMOVE_NAME,
true);
}
Definition at line 210 of file schema.c.
References check_schema_perms(), and SEPG_DB_SCHEMA__SEARCH.
Referenced by sepgsql_object_access().
{
return check_schema_perms(namespaceId,
SEPG_DB_SCHEMA__SEARCH,
abort_on_violation);
}
| void sepgsql_schema_setattr | ( | Oid | namespaceId | ) |
Definition at line 203 of file schema.c.
References check_schema_perms(), and SEPG_DB_SCHEMA__SETATTR.
Referenced by sepgsql_object_access().
{
check_schema_perms(namespaceId, SEPG_DB_SCHEMA__SETATTR, true);
}
1.7.1