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e1e0a4d791
If the name lookups come to different conclusions due to concurrent activity, we might perform some parts of the DDL on a different table than other parts. At least in the case of CREATE INDEX, this can be used to cause the permissions checks to be performed against a different table than the index creation, allowing for a privilege escalation attack. This changes the calling convention for DefineIndex, CreateTrigger, transformIndexStmt, transformAlterTableStmt, CheckIndexCompatible (in 9.2 and newer), and AlterTable (in 9.1 and older). In addition, CheckRelationOwnership is removed in 9.2 and newer and the calling convention is changed in older branches. A field has also been added to the Constraint node (FkConstraint in 8.4). Third-party code calling these functions or using the Constraint node will require updating. Report by Andres Freund. Patch by Robert Haas and Andres Freund, reviewed by Tom Lane. Security: CVE-2014-0062
84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* tablecmds.h
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* prototypes for tablecmds.c.
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*
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*
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* Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/commands/tablecmds.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef TABLECMDS_H
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#define TABLECMDS_H
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#include "access/htup.h"
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#include "catalog/dependency.h"
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#include "nodes/parsenodes.h"
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#include "storage/lock.h"
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#include "utils/relcache.h"
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extern Oid DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId);
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extern void RemoveRelations(DropStmt *drop);
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extern Oid AlterTableLookupRelation(AlterTableStmt *stmt, LOCKMODE lockmode);
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extern void AlterTable(Oid relid, LOCKMODE lockmode, AlterTableStmt *stmt);
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extern LOCKMODE AlterTableGetLockLevel(List *cmds);
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extern void ATExecChangeOwner(Oid relationOid, Oid newOwnerId, bool recursing, LOCKMODE lockmode);
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extern void AlterTableInternal(Oid relid, List *cmds, bool recurse);
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extern Oid AlterTableNamespace(AlterObjectSchemaStmt *stmt);
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extern void AlterTableNamespaceInternal(Relation rel, Oid oldNspOid,
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Oid nspOid, ObjectAddresses *objsMoved);
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extern void AlterRelationNamespaceInternal(Relation classRel, Oid relOid,
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Oid oldNspOid, Oid newNspOid,
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bool hasDependEntry,
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ObjectAddresses *objsMoved);
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extern void CheckTableNotInUse(Relation rel, const char *stmt);
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extern void ExecuteTruncate(TruncateStmt *stmt);
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extern void SetRelationHasSubclass(Oid relationId, bool relhassubclass);
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extern Oid renameatt(RenameStmt *stmt);
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extern Oid RenameConstraint(RenameStmt *stmt);
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extern Oid RenameRelation(RenameStmt *stmt);
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extern void RenameRelationInternal(Oid myrelid,
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const char *newrelname, bool is_internal);
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extern void find_composite_type_dependencies(Oid typeOid,
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Relation origRelation,
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const char *origTypeName);
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extern void check_of_type(HeapTuple typetuple);
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extern void register_on_commit_action(Oid relid, OnCommitAction action);
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extern void remove_on_commit_action(Oid relid);
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extern void PreCommit_on_commit_actions(void);
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extern void AtEOXact_on_commit_actions(bool isCommit);
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extern void AtEOSubXact_on_commit_actions(bool isCommit,
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SubTransactionId mySubid,
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SubTransactionId parentSubid);
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extern void RangeVarCallbackOwnsTable(const RangeVar *relation,
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Oid relId, Oid oldRelId, void *arg);
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extern void RangeVarCallbackOwnsRelation(const RangeVar *relation,
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Oid relId, Oid oldRelId, void *noCatalogs);
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#endif /* TABLECMDS_H */
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