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diff --git a/libs/watt32/netinet6/pim6.h b/libs/watt32/netinet6/pim6.h
new file mode 100644
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+++ b/libs/watt32/netinet6/pim6.h
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+/*!\file netinet6/pim6.h
+ *
+ */
+
+/*      $FreeBSD: src/sys/netinet6/pim6.h,v 1.2 2000/07/04 16:35:10 itojun Exp $        */
+/*	$KAME: pim6.h,v 1.3 2000/03/25 07:23:58 sumikawa Exp $	*/
+
+/*
+ * Copyright (C) 1998 WIDE Project.
+ * 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.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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.
+ */
+/*
+ * Protocol Independent Multicast (PIM) definitions
+ *
+ * Written by Ahmed Helmy, SGI, July 1996
+ *
+ * MULTICAST
+ */
+
+/*
+ * PIM packet header
+ */
+#define PIM_VERSION	2
+struct pim {
+#if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
+	u_char	pim_type:4, /* the PIM message type, currently they are:
+			     * Hello, Register, Register-Stop, Join/Prune,
+			     * Bootstrap, Assert, Graft (PIM-DM only),
+			     * Graft-Ack (PIM-DM only), C-RP-Adv
+			     */
+		pim_ver:4;  /* PIM version number; 2 for PIMv2 */
+#else
+	u_char	pim_ver:4,	/* PIM version */
+		pim_type:4;	/* PIM type    */
+#endif
+	u_char  pim_rsv;	/* Reserved */
+	u_short	pim_cksum;	/* IP style check sum */
+};
+
+#define PIM_MINLEN	8		/* The header min. length is 8    */
+#define PIM6_REG_MINLEN	(PIM_MINLEN+40)	/* Register message + inner IP6 header */
+
+/*
+ * Message types
+ */
+#define PIM_REGISTER	1	/* PIM Register type is 1 */
+
+/* second bit in reg_head is the null bit */
+#define PIM_NULL_REGISTER 0x40000000