return -ENOBUFS;
}
+/* Modifies actions in 'chain' that match 'key'. Returns the number of
+ * flows that were modified.
+ *
+ * Expensive in the general case as currently implemented, since it requires
+ * iterating through the entire contents of each table for keys that contain
+ * wildcards. Relatively cheap for fully specified keys. */
+int
+chain_modify(struct sw_chain *chain, const struct sw_flow_key *key,
+ const struct ofp_action *actions, int n_actions)
+{
+ int count = 0;
+ int i;
+
+ for (i = 0; i < chain->n_tables; i++) {
+ struct sw_table *t = chain->tables[i];
+ count += t->modify(t, key, actions, n_actions);
+ }
+
+ return count;
+}
+
/* Deletes from 'chain' any and all flows that match 'key'. Returns the number
* of flows that were deleted.
*