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https://github.com/esp8266/Arduino.git
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a1e59e9c01
* update to lwIP-2.1.0rc1: partial SACK support fix #4176 * hash fix * get some flash back due to mistake in conf (fragmentation & reassembly was incorrectly enabled) (ahah I scared you) * add missing include files * update to lwip-2.1.0(release) + remove unused lwIP's include files * lwIP release 2.1.0, SACK is now default, bigger, no-SACK is selectable * fix ldscript * pio * rename 'sack' option to 'feat'ure option, + IP fragmentation/reassembly * merge, fix pio * change internal/hidden string * pio: more lwip2 configuration: + without sack for no change in flash footprint
126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
/**
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* @file
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* Ethernet protocol definitions
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*/
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef LWIP_HDR_PROT_ETHERNET_H
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#define LWIP_HDR_PROT_ETHERNET_H
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#include "lwip/arch.h"
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#include "lwip/prot/ieee.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef ETH_HWADDR_LEN
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#ifdef ETHARP_HWADDR_LEN
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#define ETH_HWADDR_LEN ETHARP_HWADDR_LEN /* compatibility mode */
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#else
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#define ETH_HWADDR_LEN 6
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#endif
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#endif
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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/** An Ethernet MAC address */
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struct eth_addr {
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PACK_STRUCT_FLD_8(u8_t addr[ETH_HWADDR_LEN]);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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/** Initialize a struct eth_addr with its 6 bytes (takes care of correct braces) */
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#define ETH_ADDR(b0, b1, b2, b3, b4, b5) {{b0, b1, b2, b3, b4, b5}}
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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/** Ethernet header */
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struct eth_hdr {
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#if ETH_PAD_SIZE
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PACK_STRUCT_FLD_8(u8_t padding[ETH_PAD_SIZE]);
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#endif
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PACK_STRUCT_FLD_S(struct eth_addr dest);
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PACK_STRUCT_FLD_S(struct eth_addr src);
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PACK_STRUCT_FIELD(u16_t type);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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/** VLAN header inserted between ethernet header and payload
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* if 'type' in ethernet header is ETHTYPE_VLAN.
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* See IEEE802.Q */
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struct eth_vlan_hdr {
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PACK_STRUCT_FIELD(u16_t prio_vid);
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PACK_STRUCT_FIELD(u16_t tpid);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#define SIZEOF_VLAN_HDR 4
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#define VLAN_ID(vlan_hdr) (lwip_htons((vlan_hdr)->prio_vid) & 0xFFF)
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/** The 24-bit IANA IPv4-multicast OUI is 01-00-5e: */
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#define LL_IP4_MULTICAST_ADDR_0 0x01
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#define LL_IP4_MULTICAST_ADDR_1 0x00
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#define LL_IP4_MULTICAST_ADDR_2 0x5e
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/** IPv6 multicast uses this prefix */
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#define LL_IP6_MULTICAST_ADDR_0 0x33
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#define LL_IP6_MULTICAST_ADDR_1 0x33
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#define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETH_HWADDR_LEN) == 0)
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_HDR_PROT_ETHERNET_H */
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