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diff --git a/sys/contrib/ngatm/netnatm/saal/sscfudef.h b/sys/contrib/ngatm/netnatm/saal/sscfudef.h
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+++ b/sys/contrib/ngatm/netnatm/saal/sscfudef.h
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+/*
+ * Copyright (c) 1996-2003
+ *	Fraunhofer Institute for Open Communication Systems (FhG Fokus).
+ * 	All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON 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 ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Author: Hartmut Brandt <harti@freebsd.org>
+ *
+ * $Begemot: libunimsg/netnatm/saal/sscfudef.h,v 1.4 2004/07/08 08:22:16 brandt Exp $
+ *
+ * Definitions of UNI SSCF constants.
+ */
+#ifndef _NETNATM_SAAL_SSCFUDEF_H_
+#define _NETNATM_SAAL_SSCFUDEF_H_
+
+/*
+ * Signals at the upper boundary of the SSCF.
+ */
+enum saal_sig {
+	SAAL_ESTABLISH_request,		/* U -> SAAL: (UU) */
+	SAAL_ESTABLISH_indication,	/* SAAL -> U: (UU) */
+	SAAL_ESTABLISH_confirm,		/* SAAL -> U: (UU) */
+	SAAL_RELEASE_request,		/* U -> SAAL: (UU) */
+	SAAL_RELEASE_confirm,		/* SAAL -> U: */
+	SAAL_RELEASE_indication,	/* SAAL -> U: (UU) */
+	SAAL_DATA_request,		/* U -> SAAL: (DATA) */
+	SAAL_DATA_indication,		/* SAAL -> U: (DATA) */
+	SAAL_UDATA_request,		/* U -> SAAL: (UDATA) */
+	SAAL_UDATA_indication,		/* SAAL -> U: (UDATA) */
+};
+
+/*
+ * States of the SSCF
+ */
+enum sscfu_state {
+	SSCFU_RELEASED,			/* 1/1 */
+	SSCFU_AWAITING_ESTABLISH,	/* 2/2 */
+	SSCFU_AWAITING_RELEASE,		/* 4/10 */
+	SSCFU_ESTABLISHED,		/* 3/4 */
+	SSCFU_RESYNC,			/* 2/5 */
+};
+
+/*
+ * Debugging flags
+ */
+enum {
+	SSCFU_DBG_LSIG		= 0x01,
+	SSCFU_DBG_ERR		= 0x02,
+	SSCFU_DBG_STATE		= 0x04,
+	SSCFU_DBG_EXEC		= 0x08,
+};
+
+#endif