From bdf90c59bc4c712cc3d7a384f835bcf1cc6b0e56 Mon Sep 17 00:00:00 2001
From: Duncan Laurie <duncan@iceblink.org>
Date: Fri, 3 Sep 2004 18:58:59 +0000
Subject: [PATCH] add keepalive function for lan interface

---
 ipmitool/include/ipmitool/ipmi_intf.h |  1 +
 ipmitool/src/plugins/lan/lan.c        | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/ipmitool/include/ipmitool/ipmi_intf.h b/ipmitool/include/ipmitool/ipmi_intf.h
index 4fa21b7..37d79b7 100644
--- a/ipmitool/include/ipmitool/ipmi_intf.h
+++ b/ipmitool/include/ipmitool/ipmi_intf.h
@@ -156,6 +156,7 @@ struct ipmi_intf {
 	int (*sendrsp)(struct ipmi_intf * intf, struct ipmi_rs * rsp);
 	struct ipmi_rs *(*recv_sol)(struct ipmi_intf * intf);
 	struct ipmi_rs *(*send_sol)(struct ipmi_intf * intf, struct ipmi_v2_payload * payload);
+	int (*keepalive)(struct ipmi_intf * intf);
 };
 
 struct ipmi_intf * ipmi_intf_load(char * name);
diff --git a/ipmitool/src/plugins/lan/lan.c b/ipmitool/src/plugins/lan/lan.c
index 3d7c8f1..bb5d641 100644
--- a/ipmitool/src/plugins/lan/lan.c
+++ b/ipmitool/src/plugins/lan/lan.c
@@ -79,6 +79,7 @@ static int ipmi_lan_send_packet(struct ipmi_intf * intf, unsigned char * data, i
 static struct ipmi_rs * ipmi_lan_recv_packet(struct ipmi_intf * intf);
 static struct ipmi_rs * ipmi_lan_poll_recv(struct ipmi_intf * intf);
 static int ipmi_lan_setup(struct ipmi_intf * intf);
+static int ipmi_lan_keepalive(struct ipmi_intf * intf);
 
 struct ipmi_intf ipmi_lan_intf = {
 	name:		"lan",
@@ -88,6 +89,7 @@ struct ipmi_intf ipmi_lan_intf = {
 	close:		ipmi_lan_close,
 	sendrecv:	ipmi_lan_send_cmd,
 	sendrsp:	ipmi_lan_send_rsp,
+	keepalive:	ipmi_lan_keepalive,
 	target_addr:	IPMI_BMC_SLAVE_ADDR,
 };
 
@@ -844,6 +846,23 @@ int ipmi_lan_send_rsp(struct ipmi_intf * intf, struct ipmi_rs * rsp)
 	return 0;
 }
 
+/* send a get device id command to keep session active */
+static int
+ipmi_lan_keepalive(struct ipmi_intf * intf)
+{
+	struct ipmi_rs * rsp;
+	struct ipmi_rq req = { msg: {
+		netfn: IPMI_NETFN_APP,
+		cmd: 1,
+	}};
+
+	if (!intf->opened)
+		return 0;
+
+	rsp = intf->sendrecv(intf, &req);
+	return (!rsp || rsp->ccode) ? -1 : 0;
+}
+
 /*
  * IPMI Get Channel Authentication Capabilities Command
  */