Merge pull request #12798 from donaldsharp/rib_match_multicast

[mirror_frr.git] / lib / sockopt.h

diff --git a/lib/sockopt.h b/lib/sockopt.h
index 6c80841e3c2b904ec20a8b1766bae21ef11e01e9..ce7d665fab5f2686456e418dc0cc65248d04ebd7 100644 (file)
--- a/lib/sockopt.h
+++ b/lib/sockopt.h
@@ -1,21 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /* Router advertisement
  * Copyright (C) 1999 Kunihiro Ishiguro
- *
- * This file is part of GNU Zebra.
- *
- * GNU Zebra is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * GNU Zebra is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; see the file COPYING; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef _ZEBRA_SOCKOPT_H
@@ -153,6 +138,28 @@ extern int sockopt_tcp_mss_set(int sock, int tcp_maxseg);
  *    Socket to get max segement size.
  */
 extern int sockopt_tcp_mss_get(int sock);
+
+/*
+ * Configure TCP keepalive for a given socket
+ *
+ * sock
+ *   Socket to enable keepalive option on.
+ *
+ * keepalive_idle
+ *   number of seconds a connection needs to be idle
+ *   before sending out keep-alive proves
+ *
+ * keepalive_intvl
+ *   number of seconds between TCP keep-alive probes
+ *
+ * keepalive_probes
+ *   max number of probers to send before giving up
+ *   and killing tcp connection
+ */
+extern int setsockopt_tcp_keepalive(int sock, uint16_t keepalive_idle,
+                                   uint16_t keepalive_intvl,
+                                   uint16_t keepalive_probes);
+
 #ifdef __cplusplus
 }
 #endif