2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
110 lines
4 KiB
C
110 lines
4 KiB
C
/* $NetBSD: if_ether.h,v 1.58 2010/05/19 20:41:59 christos Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_ether.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _NET_IF_ETHER_H_
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#define _NET_IF_ETHER_H_
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/*
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* Some basic Ethernet constants.
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*/
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#define ETHER_ADDR_LEN 6 /* length of an Ethernet address */
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#define ETHER_TYPE_LEN 2 /* length of the Ethernet type field */
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#define ETHER_CRC_LEN 4 /* length of the Ethernet CRC */
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#define ETHER_HDR_LEN ((ETHER_ADDR_LEN * 2) + ETHER_TYPE_LEN)
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#define ETHER_MIN_LEN 64 /* minimum frame length, including CRC */
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#define ETHER_MAX_LEN 1518 /* maximum frame length, including CRC */
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#define ETHER_MAX_LEN_JUMBO 9018 /* maximum jumbo frame len, including CRC */
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/*
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* Some Ethernet extensions.
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*/
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#define ETHER_VLAN_ENCAP_LEN 4 /* length of 802.1Q VLAN encapsulation */
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#define ETHER_PPPOE_ENCAP_LEN 8 /* length of PPPoE encapsulation */
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/*
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* Ethernet address - 6 octets
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* this is only used by the ethers(3) functions.
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*/
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struct ether_addr {
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uint8_t ether_addr_octet[ETHER_ADDR_LEN];
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} __packed;
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/*
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* Structure of a 10Mb/s Ethernet header.
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*/
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struct ether_header {
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uint8_t ether_dhost[ETHER_ADDR_LEN];
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uint8_t ether_shost[ETHER_ADDR_LEN];
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uint16_t ether_type;
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} __packed;
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#include <net/ethertypes.h>
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#define ETHER_IS_MULTICAST(addr) (*(addr) & 0x01) /* is address mcast/bcast? */
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#define ETHER_IS_LOCAL(addr) (*(addr) & 0x02) /* is address local? */
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#define ETHERMTU_JUMBO (ETHER_MAX_LEN_JUMBO - ETHER_HDR_LEN - ETHER_CRC_LEN)
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#define ETHERMTU (ETHER_MAX_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
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#define ETHERMIN (ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
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/*
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* Compute the maximum frame size based on ethertype (i.e. possible
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* encapsulation) and whether or not an FCS is present.
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*/
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#define ETHER_MAX_FRAME(ifp, etype, hasfcs) \
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((ifp)->if_mtu + ETHER_HDR_LEN + \
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((hasfcs) ? ETHER_CRC_LEN : 0) + \
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(((etype) == ETHERTYPE_VLAN) ? ETHER_VLAN_ENCAP_LEN : 0) + \
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(((etype) == ETHERTYPE_PPPOE) ? ETHER_PPPOE_ENCAP_LEN : 0))
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/*
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* Ethernet CRC32 polynomials (big- and little-endian verions).
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*/
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#define ETHER_CRC_POLY_LE 0xedb88320
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#define ETHER_CRC_POLY_BE 0x04c11db6
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/*
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* Prototype ethers(3) functions.
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*/
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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char * ether_ntoa(const struct ether_addr *);
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struct ether_addr *
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ether_aton(const char *);
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int ether_ntohost(char *, const struct ether_addr *);
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int ether_hostton(const char *, struct ether_addr *);
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int ether_line(const char *, struct ether_addr *, char *);
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__END_DECLS
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#endif /* !_NET_IF_ETHER_H_ */
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