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diff --git a/sys/netgraph/ng_lmi.h b/sys/netgraph/ng_lmi.h
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+
+/*
+ * ng_lmi.h
+ *
+ * Copyright (c) 1996-1999 Whistle Communications, Inc.
+ * All rights reserved.
+ * 
+ * Subject to the following obligations and disclaimer of warranty, use and
+ * redistribution of this software, in source or object code forms, with or
+ * without modifications are expressly permitted by Whistle Communications;
+ * provided, however, that:
+ * 1. Any and all reproductions of the source or object code must include the
+ *    copyright notice above and the following disclaimer of warranties; and
+ * 2. No rights are granted, in any manner or form, to use Whistle
+ *    Communications, Inc. trademarks, including the mark "WHISTLE
+ *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
+ *    such appears in the above copyright notice or in the software.
+ * 
+ * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
+ * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
+ * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
+ * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
+ * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
+ * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
+ * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
+ * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
+ * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Archie Cobbs <archie@whistle.com>
+ *
+ * $FreeBSD$
+ * $Whistle: ng_lmi.h,v 1.9 1999/01/20 00:22:13 archie Exp $
+ */
+
+#ifndef _NETGRAPH_LMI_H_
+#define _NETGRAPH_LMI_H_
+
+/* Node type name and magic cookie */
+#define NG_LMI_NODE_TYPE		"lmi"
+#define NGM_LMI_COOKIE			867184133
+
+/* My hook names */
+#define NG_LMI_HOOK_DEBUG		"debug"
+#define NG_LMI_HOOK_ANNEXA		"annexA"
+#define NG_LMI_HOOK_ANNEXD		"annexD"
+#define NG_LMI_HOOK_GROUPOF4		"group4"
+#define NG_LMI_HOOK_AUTO0		"auto0"
+#define NG_LMI_HOOK_AUTO1023		"auto1023"
+
+/* Netgraph commands */
+enum {
+	NGM_LMI_GET_STATUS = 1,
+};
+
+#define NGM_LMI_STAT_ARYSIZE		(1024/8)
+
+struct nglmistat {
+	u_char  proto[12];	/* Active proto (same as hook name) */
+	u_char  hook[12];	/* Active hook */
+	u_char  fixed;		/* Set to fixed LMI mode */
+	u_char  autod;		/* Currently auto-detecting */
+	u_char  seen[NGM_LMI_STAT_ARYSIZE];	/* DLCIs ever seen */
+	u_char  up[NGM_LMI_STAT_ARYSIZE];	/* DLCIs currently up */
+};
+
+/* Some default values */
+#define NG_LMI_KEEPALIVE_RATE		10	/* seconds per keepalive */
+#define NG_LMI_POLL_RATE		3	/* faster when AUTO polling */
+#define NG_LMI_SEQ_PER_FULL		5	/* keepalives per full status */
+#define NG_LMI_LMI_PRIORITY		64	/* priority for LMI data */
+
+#endif /* _NETGRAPH_LMI_H_ */