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-rw-r--r--source4/lib/ldb/ldb_tdb/ldb_tdb.c40
1 files changed, 31 insertions, 9 deletions
diff --git a/source4/lib/ldb/ldb_tdb/ldb_tdb.c b/source4/lib/ldb/ldb_tdb/ldb_tdb.c
index 324a8e3881..21661b1d46 100644
--- a/source4/lib/ldb/ldb_tdb/ldb_tdb.c
+++ b/source4/lib/ldb/ldb_tdb/ldb_tdb.c
@@ -856,16 +856,38 @@ static int ltdb_rename(struct ldb_module *module, struct ldb_request *req)
goto done;
}
- ret = ltdb_add_internal(module, msg);
- if (ret != LDB_SUCCESS) {
- goto done;
- }
+ if (ldb_dn_compare(req->op.rename.olddn, req->op.rename.newdn) == 0) {
+ /* The rename operation is apparently only changing case -
+ the DNs are the same. Delete the old DN before adding
+ the new one to avoid a TDB_ERR_EXISTS error.
+
+ The only drawback to this is that if the delete
+ succeeds but the add fails, we rely on the
+ transaction to roll this all back. */
+ ret = ltdb_delete_internal(module, req->op.rename.olddn);
+ if (ret != LDB_SUCCESS) {
+ goto done;
+ }
- tret = ltdb_delete_internal(module, req->op.rename.olddn);
- if (tret != LDB_SUCCESS) {
- ltdb_delete_internal(module, req->op.rename.newdn);
- ret = LDB_ERR_OPERATIONS_ERROR;
- goto done;
+ ret = ltdb_add_internal(module, msg);
+ if (ret != LDB_SUCCESS) {
+ goto done;
+ }
+ } else {
+ /* The rename operation is changing DNs. Try to add the new
+ DN first to avoid clobbering another DN not related to
+ this rename operation. */
+ ret = ltdb_add_internal(module, msg);
+ if (ret != LDB_SUCCESS) {
+ goto done;
+ }
+
+ tret = ltdb_delete_internal(module, req->op.rename.olddn);
+ if (tret != LDB_SUCCESS) {
+ ltdb_delete_internal(module, req->op.rename.newdn);
+ ret = LDB_ERR_OPERATIONS_ERROR;
+ goto done;
+ }
}
if (ltdb_ac->callback) {