Add NBSD-like Minix system includes.

nbsd_include/net/if_ether.h

@@ -0,0 +1,109 @@
+/*	$NetBSD: if_ether.h,v 1.58 2010/05/19 20:41:59 christos Exp $	*/
+
+/*
+ * Copyright (c) 1982, 1986, 1993
+ *	The Regents of the University of California.  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 University 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 REGENTS 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 REGENTS 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.
+ *
+ *	@(#)if_ether.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _NET_IF_ETHER_H_
+#define _NET_IF_ETHER_H_
+
+/*
+ * Some basic Ethernet constants.
+ */
+#define	ETHER_ADDR_LEN	6	/* length of an Ethernet address */
+#define	ETHER_TYPE_LEN	2	/* length of the Ethernet type field */
+#define	ETHER_CRC_LEN	4	/* length of the Ethernet CRC */
+#define	ETHER_HDR_LEN	((ETHER_ADDR_LEN * 2) + ETHER_TYPE_LEN)
+#define	ETHER_MIN_LEN	64	/* minimum frame length, including CRC */
+#define	ETHER_MAX_LEN	1518	/* maximum frame length, including CRC */
+#define	ETHER_MAX_LEN_JUMBO 9018 /* maximum jumbo frame len, including CRC */
+
+/*
+ * Some Ethernet extensions.
+ */
+#define	ETHER_VLAN_ENCAP_LEN 4	/* length of 802.1Q VLAN encapsulation */
+#define	ETHER_PPPOE_ENCAP_LEN 8	/* length of PPPoE encapsulation */
+
+/*
+ * Ethernet address - 6 octets
+ * this is only used by the ethers(3) functions.
+ */
+struct ether_addr {
+	uint8_t ether_addr_octet[ETHER_ADDR_LEN];
+} __packed;
+
+/*
+ * Structure of a 10Mb/s Ethernet header.
+ */
+struct ether_header {
+	uint8_t  ether_dhost[ETHER_ADDR_LEN];
+	uint8_t  ether_shost[ETHER_ADDR_LEN];
+	uint16_t ether_type;
+} __packed;
+
+#include <net/ethertypes.h>
+
+#define	ETHER_IS_MULTICAST(addr) (*(addr) & 0x01) /* is address mcast/bcast? */
+#define	ETHER_IS_LOCAL(addr) (*(addr) & 0x02) /* is address local? */
+
+#define	ETHERMTU_JUMBO	(ETHER_MAX_LEN_JUMBO - ETHER_HDR_LEN - ETHER_CRC_LEN)
+#define	ETHERMTU	(ETHER_MAX_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
+#define	ETHERMIN	(ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
+
+/*
+ * Compute the maximum frame size based on ethertype (i.e. possible
+ * encapsulation) and whether or not an FCS is present.
+ */
+#define	ETHER_MAX_FRAME(ifp, etype, hasfcs)				\
+	((ifp)->if_mtu + ETHER_HDR_LEN +				\
+	 ((hasfcs) ? ETHER_CRC_LEN : 0) +				\
+	 (((etype) == ETHERTYPE_VLAN) ? ETHER_VLAN_ENCAP_LEN : 0) +	\
+	 (((etype) == ETHERTYPE_PPPOE) ? ETHER_PPPOE_ENCAP_LEN : 0))
+
+/*
+ * Ethernet CRC32 polynomials (big- and little-endian verions).
+ */
+#define	ETHER_CRC_POLY_LE	0xedb88320
+#define	ETHER_CRC_POLY_BE	0x04c11db6
+
+/*
+ * Prototype ethers(3) functions.
+ */
+#include <sys/cdefs.h>
+__BEGIN_DECLS
+char *	ether_ntoa(const struct ether_addr *);
+struct ether_addr *
+	ether_aton(const char *);
+int	ether_ntohost(char *, const struct ether_addr *);
+int	ether_hostton(const char *, struct ether_addr *);
+int	ether_line(const char *, struct ether_addr *, char *);
+__END_DECLS
+
+#endif /* !_NET_IF_ETHER_H_ */