diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index f317c27..afae306 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -49,6 +49,7 @@
 header-y += const.h
 header-y += cycx_cfm.h
 header-y += dlm_device.h
+header-y += dlm_netlink.h
 header-y += dm-ioctl.h
 header-y += dn.h
 header-y += dqblk_v1.h
diff --git a/include/linux/dlm.h b/include/linux/dlm.h
index 1b1dcb9..975f17d 100644
--- a/include/linux/dlm.h
+++ b/include/linux/dlm.h
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -149,6 +149,7 @@
 #define DLM_LKF_ALTPR		0x00008000
 #define DLM_LKF_ALTCW		0x00010000
 #define DLM_LKF_FORCEUNLOCK	0x00020000
+#define DLM_LKF_TIMEOUT		0x00040000
 
 /*
  * Some return codes that are not in errno.h
@@ -199,11 +200,11 @@
 	char *	 sb_lvbptr;
 };
 
+#define DLM_LSFL_NODIR		0x00000001
+#define DLM_LSFL_TIMEWARN	0x00000002
 
 #ifdef __KERNEL__
 
-#define DLM_LSFL_NODIR		0x00000001
-
 /*
  * dlm_new_lockspace
  *
diff --git a/include/linux/dlm_netlink.h b/include/linux/dlm_netlink.h
new file mode 100644
index 0000000..1927633
--- /dev/null
+++ b/include/linux/dlm_netlink.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2007 Red Hat, Inc.  All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ */
+
+#ifndef _DLM_NETLINK_H
+#define _DLM_NETLINK_H
+
+enum {
+	DLM_STATUS_WAITING = 1,
+	DLM_STATUS_GRANTED = 2,
+	DLM_STATUS_CONVERT = 3,
+};
+
+#define DLM_LOCK_DATA_VERSION 1
+
+struct dlm_lock_data {
+	uint16_t version;
+	uint32_t lockspace_id;
+	int nodeid;
+	int ownpid;
+	uint32_t id;
+	uint32_t remid;
+	uint64_t xid;
+	int8_t status;
+	int8_t grmode;
+	int8_t rqmode;
+	unsigned long timestamp;
+	int resource_namelen;
+	char resource_name[DLM_RESNAME_MAXLEN];
+};
+
+enum {
+	DLM_CMD_UNSPEC = 0,
+	DLM_CMD_HELLO,		/* user->kernel */
+	DLM_CMD_TIMEOUT,	/* kernel->user */
+	__DLM_CMD_MAX,
+};
+
+#define DLM_CMD_MAX (__DLM_CMD_MAX - 1)
+
+enum {
+	DLM_TYPE_UNSPEC = 0,
+	DLM_TYPE_LOCK,
+	__DLM_TYPE_MAX,
+};
+
+#define DLM_TYPE_MAX (__DLM_TYPE_MAX - 1)
+
+#define DLM_GENL_VERSION 0x1
+#define DLM_GENL_NAME "DLM"
+
+#endif /* _DLM_NETLINK_H */