r26697: Leak less memory into the ldb context.

(Trying to chase down memory leaks in provision)

Andrew Bartlett
(This used to be commit a0cf47c3359ca5dfab90c1a5831a73b89ff9f027)

diff --git a/source4/dsdb/schema/schema_init.c b/source4/dsdb/schema/schema_init.c
index 3dd81fb822597f43145aadc102a8d34eda13d854..6a7463951e57a03ff658e73f0950693d14bfbca1 100644 (file)
--- a/source4/dsdb/schema/schema_init.c
+++ b/source4/dsdb/schema/schema_init.c
@@ -85,24 +85,30 @@ WERROR dsdb_load_oid_mappings_ldb(struct dsdb_schema *schema,
        struct prefixMapBlob pfm;
        char *schema_info;
 
-       ndr_err = ndr_pull_struct_blob(prefixMap, schema, lp_iconv_convenience(global_loadparm), &pfm,
+       TALLOC_CTX *mem_ctx = talloc_new(schema);
+       W_ERROR_HAVE_NO_MEMORY(mem_ctx);
+       
+       ndr_err = ndr_pull_struct_blob(prefixMap, mem_ctx, lp_iconv_convenience(global_loadparm), &pfm,
                                       (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob);
        if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
                NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
+               talloc_free(mem_ctx);
                return ntstatus_to_werror(nt_status);
        }
 
        if (pfm.version != PREFIX_MAP_VERSION_DSDB) {
+               talloc_free(mem_ctx);
                return WERR_FOOBAR;
        }
 
        if (schemaInfo->length != 21 && schemaInfo->data[0] == 0xFF) {
+               talloc_free(mem_ctx);
                return WERR_FOOBAR;
        }
 
        /* append the schema info as last element */
        pfm.ctr.dsdb.num_mappings++;
-       pfm.ctr.dsdb.mappings = talloc_realloc(schema, pfm.ctr.dsdb.mappings,
+       pfm.ctr.dsdb.mappings = talloc_realloc(mem_ctx, pfm.ctr.dsdb.mappings,
                                               struct drsuapi_DsReplicaOIDMapping,
                                               pfm.ctr.dsdb.num_mappings);
        W_ERROR_HAVE_NO_MEMORY(pfm.ctr.dsdb.mappings);
@@ -116,7 +122,8 @@ WERROR dsdb_load_oid_mappings_ldb(struct dsdb_schema *schema,
 
        /* call the drsuapi version */
        status = dsdb_load_oid_mappings_drsuapi(schema, &pfm.ctr.dsdb);
-       talloc_free(pfm.ctr.dsdb.mappings);
+       talloc_free(mem_ctx);
+
        W_ERROR_NOT_OK_RETURN(status);
 
        return WERR_OK;
@@ -1164,6 +1171,8 @@ WERROR dsdb_attach_schema_from_ldif_file(struct ldb_context *ldb, const char *pf
        if (!msg) {
                goto nomem;
        }
+       talloc_steal(mem_ctx, msg);
+       talloc_free(ldif);
 
        prefix_val = ldb_msg_find_ldb_val(msg, "prefixMap");
        if (!prefix_val) {
@@ -1200,6 +1209,9 @@ WERROR dsdb_attach_schema_from_ldif_file(struct ldb_context *ldb, const char *pf
                        goto nomem;
                }
 
+               talloc_steal(mem_ctx, msg);
+               talloc_free(ldif);
+
                is_sa = ldb_msg_check_string_attribute(msg, "objectClass", "attributeSchema");
                is_sc = ldb_msg_check_string_attribute(msg, "objectClass", "classSchema");