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-rw-r--r--sysdeps/unix/mman/syscalls.list4
-rw-r--r--sysdeps/unix/sysv/linux/Dist1
-rw-r--r--sysdeps/unix/sysv/linux/Makefile2
-rw-r--r--sysdeps/unix/sysv/linux/net/ethernet.h76
4 files changed, 82 insertions, 1 deletions
diff --git a/sysdeps/unix/mman/syscalls.list b/sysdeps/unix/mman/syscalls.list
index dc63d89d7d..1d3173eafd 100644
--- a/sysdeps/unix/mman/syscalls.list
+++ b/sysdeps/unix/mman/syscalls.list
@@ -1,3 +1,7 @@
+# This interface desciption corresponds to the POSIX.1 description.  The
+# 4.4BSD interface is slightly different since the `msync' function takes
+# only 2 arguments.
+
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 madvise		-	madvise		3	madvise
diff --git a/sysdeps/unix/sysv/linux/Dist b/sysdeps/unix/sysv/linux/Dist
index 0c5903dc89..9c41e50b4c 100644
--- a/sysdeps/unix/sysv/linux/Dist
+++ b/sysdeps/unix/sysv/linux/Dist
@@ -5,6 +5,7 @@ llseek.c
 siglist.h
 sysctl.c
 termio.h
+net/ethernet.h
 net/if.h
 net/if_arp.h
 net/if_ppp.h
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index ad77f8872c..888ab9bd85 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -35,7 +35,7 @@ endif
 
 ifeq ($(subdir),socket)
 sysdep_headers += sys/socketcall.h net/if.h net/if_ppp.h net/ppp-comp.h \
-		  net/ppp_defs.h net/if_arp.h net/route.h
+		  net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h
 sysdep_routines += cmsg_nxthdr
 endif
 
diff --git a/sysdeps/unix/sysv/linux/net/ethernet.h b/sysdeps/unix/sysv/linux/net/ethernet.h
new file mode 100644
index 0000000000..89a92c53f1
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/net/ethernet.h
@@ -0,0 +1,76 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Based on the FreeBSD version of this file. Curiously, that file
+   lacks a copyright in the header. */
+
+#ifndef __NET_ETHERNET_H
+#define __NET_ETHERNET_H 1
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <linux/if_ether.h>     /* IEEE 802.3 Ethernet constants */
+
+__BEGIN_DECLS
+
+/* This is a name for the 48 bit ethernet address available on many
+   systems.  */
+struct ether_addr
+{
+  u_int8_t ether_addr_octet[ETH_ALEN];
+};
+
+/* 10Mb/s ethernet header */
+struct ether_header
+{
+  u_int8_t  ether_dhost[ETH_ALEN];	/* destination eth addr	*/
+  u_int8_t  ether_shost[ETH_ALEN];	/* source ether addr	*/
+  u_int16_t ether_type;		        /* packet type ID field	*/
+};
+
+/* Ethernet protocol ID's */
+#define	ETHERTYPE_PUP		0x0200          /* Xerox PUP */
+#define	ETHERTYPE_IP		0x0800		/* IP */
+#define	ETHERTYPE_ARP		0x0806		/* Address resolution */
+#define	ETHERTYPE_REVARP	0x8035		/* Reverse ARP */
+
+#define	ETHER_ADDR_LEN	ETH_ALEN                 /* size of ethernet addr */
+#define	ETHER_TYPE_LEN	2                        /* bytes in type field */
+#define	ETHER_CRC_LEN	4                        /* bytes in CRC field */
+#define	ETHER_HDR_LEN	ETH_HLEN                 /* total octets in header */
+#define	ETHER_MIN_LEN	(ETH_ZLEN + ETH_CRC_LEN) /* min packet length */
+#define	ETHER_MAX_LEN	(ETH_FRAME_LEN + ETH_CRC_LEN) /* max packet length */
+
+/* make sure ethenet length is valid */
+#define	ETHER_IS_VALID_LEN(foo)	\
+	((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN)
+
+/*
+ * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
+ * (type-ETHERTYPE_TRAIL)*512 bytes of data followed
+ * by an ETHER type (as given above) and then the (variable-length) header.
+ */
+#define	ETHERTYPE_TRAIL		0x1000		/* Trailer packet */
+#define	ETHERTYPE_NTRAILER	16
+
+#define	ETHERMTU	ETH_DATA_LEN
+#define	ETHERMIN	(ETHER_MIN_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
+
+__END_DECLS
+
+#endif /* net/ethernet.h */