X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fmac-learning.h;h=6a2d30b4b935fa4f4653281d5af4dcbca9413702;hb=867fb42cba19c25cfbe4f6752ebd3e44c29be2a1;hp=4e844b8b7cc0853cdde1cf6205758dc9ac45ba70;hpb=962ff3d674784ff2addac840d8a0bae0e4e9dbd2;p=openvswitch

diff --git a/lib/mac-learning.h b/lib/mac-learning.h
index 4e844b8b..6a2d30b4 100644
--- a/lib/mac-learning.h
+++ b/lib/mac-learning.h
@@ -1,17 +1,17 @@
 /*
  * Copyright (c) 2008, 2009 Nicira Networks.
  *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
  *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef MAC_LEARNING_H
@@ -28,6 +28,9 @@
 
 #define MAC_MAX 1024
 
+/* Time, in seconds, before expiring a mac_entry due to inactivity. */
+#define MAC_ENTRY_IDLE_TIME 60
+
 /* A MAC learning table entry. */
 struct mac_entry {
     struct list hash_node;      /* Element in a mac_learning 'table' list. */
@@ -39,6 +42,8 @@ struct mac_entry {
     tag_type tag;               /* Tag for this learning entry. */
 };
 
+int mac_entry_age(const struct mac_entry *);
+
 /* MAC learning table. */
 struct mac_learning {
     struct list free;           /* Not-in-use entries. */